/* Matsushita 10300 specific support for 32-bit ELF
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/* Matsushita 10300 specific support for 32-bit ELF
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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2006, 2007 Free Software Foundation, Inc.
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2006, 2007 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "elf-bfd.h"
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#include "elf/mn10300.h"
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#include "elf/mn10300.h"
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#include "libiberty.h"
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#include "libiberty.h"
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/* The mn10300 linker needs to keep track of the number of relocs that
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/* The mn10300 linker needs to keep track of the number of relocs that
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it decides to copy in check_relocs for each symbol. This is so
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it decides to copy in check_relocs for each symbol. This is so
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that it can discard PC relative relocs if it doesn't need them when
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that it can discard PC relative relocs if it doesn't need them when
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linking with -Bsymbolic. We store the information in a field
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linking with -Bsymbolic. We store the information in a field
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extending the regular ELF linker hash table. */
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extending the regular ELF linker hash table. */
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struct elf32_mn10300_link_hash_entry
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struct elf32_mn10300_link_hash_entry
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{
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{
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/* The basic elf link hash table entry. */
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/* The basic elf link hash table entry. */
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struct elf_link_hash_entry root;
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struct elf_link_hash_entry root;
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/* For function symbols, the number of times this function is
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/* For function symbols, the number of times this function is
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called directly (ie by name). */
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called directly (ie by name). */
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unsigned int direct_calls;
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unsigned int direct_calls;
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/* For function symbols, the size of this function's stack
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/* For function symbols, the size of this function's stack
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(if <= 255 bytes). We stuff this into "call" instructions
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(if <= 255 bytes). We stuff this into "call" instructions
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to this target when it's valid and profitable to do so.
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to this target when it's valid and profitable to do so.
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This does not include stack allocated by movm! */
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This does not include stack allocated by movm! */
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unsigned char stack_size;
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unsigned char stack_size;
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/* For function symbols, arguments (if any) for movm instruction
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/* For function symbols, arguments (if any) for movm instruction
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in the prologue. We stuff this value into "call" instructions
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in the prologue. We stuff this value into "call" instructions
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to the target when it's valid and profitable to do so. */
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to the target when it's valid and profitable to do so. */
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unsigned char movm_args;
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unsigned char movm_args;
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/* For function symbols, the amount of stack space that would be allocated
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/* For function symbols, the amount of stack space that would be allocated
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by the movm instruction. This is redundant with movm_args, but we
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by the movm instruction. This is redundant with movm_args, but we
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add it to the hash table to avoid computing it over and over. */
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add it to the hash table to avoid computing it over and over. */
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unsigned char movm_stack_size;
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unsigned char movm_stack_size;
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/* When set, convert all "call" instructions to this target into "calls"
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/* When set, convert all "call" instructions to this target into "calls"
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instructions. */
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instructions. */
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#define MN10300_CONVERT_CALL_TO_CALLS 0x1
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#define MN10300_CONVERT_CALL_TO_CALLS 0x1
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/* Used to mark functions which have had redundant parts of their
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/* Used to mark functions which have had redundant parts of their
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prologue deleted. */
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prologue deleted. */
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#define MN10300_DELETED_PROLOGUE_BYTES 0x2
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#define MN10300_DELETED_PROLOGUE_BYTES 0x2
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unsigned char flags;
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unsigned char flags;
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/* Calculated value. */
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/* Calculated value. */
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bfd_vma value;
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bfd_vma value;
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};
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};
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/* We derive a hash table from the main elf linker hash table so
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/* We derive a hash table from the main elf linker hash table so
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we can store state variables and a secondary hash table without
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we can store state variables and a secondary hash table without
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resorting to global variables. */
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resorting to global variables. */
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struct elf32_mn10300_link_hash_table
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struct elf32_mn10300_link_hash_table
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{
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{
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/* The main hash table. */
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/* The main hash table. */
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struct elf_link_hash_table root;
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struct elf_link_hash_table root;
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/* A hash table for static functions. We could derive a new hash table
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/* A hash table for static functions. We could derive a new hash table
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instead of using the full elf32_mn10300_link_hash_table if we wanted
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instead of using the full elf32_mn10300_link_hash_table if we wanted
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to save some memory. */
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to save some memory. */
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struct elf32_mn10300_link_hash_table *static_hash_table;
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struct elf32_mn10300_link_hash_table *static_hash_table;
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/* Random linker state flags. */
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/* Random linker state flags. */
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#define MN10300_HASH_ENTRIES_INITIALIZED 0x1
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#define MN10300_HASH_ENTRIES_INITIALIZED 0x1
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char flags;
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char flags;
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};
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};
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#ifndef streq
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#ifndef streq
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#define streq(a, b) (strcmp ((a),(b)) == 0)
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#define streq(a, b) (strcmp ((a),(b)) == 0)
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#endif
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#endif
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/* For MN10300 linker hash table. */
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/* For MN10300 linker hash table. */
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/* Get the MN10300 ELF linker hash table from a link_info structure. */
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/* Get the MN10300 ELF linker hash table from a link_info structure. */
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#define elf32_mn10300_hash_table(p) \
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#define elf32_mn10300_hash_table(p) \
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((struct elf32_mn10300_link_hash_table *) ((p)->hash))
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((struct elf32_mn10300_link_hash_table *) ((p)->hash))
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#define elf32_mn10300_link_hash_traverse(table, func, info) \
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#define elf32_mn10300_link_hash_traverse(table, func, info) \
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(elf_link_hash_traverse \
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(elf_link_hash_traverse \
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(&(table)->root, \
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(&(table)->root, \
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(bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
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(bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
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(info)))
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(info)))
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static reloc_howto_type elf_mn10300_howto_table[] =
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static reloc_howto_type elf_mn10300_howto_table[] =
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{
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{
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/* Dummy relocation. Does nothing. */
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/* Dummy relocation. Does nothing. */
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HOWTO (R_MN10300_NONE,
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HOWTO (R_MN10300_NONE,
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0,
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0,
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2,
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2,
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16,
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16,
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FALSE,
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FALSE,
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0,
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0,
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complain_overflow_bitfield,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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bfd_elf_generic_reloc,
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"R_MN10300_NONE",
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"R_MN10300_NONE",
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FALSE,
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FALSE,
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0,
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0,
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0,
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0,
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FALSE),
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FALSE),
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/* Standard 32 bit reloc. */
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/* Standard 32 bit reloc. */
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HOWTO (R_MN10300_32,
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HOWTO (R_MN10300_32,
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0,
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0,
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2,
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2,
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32,
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32,
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FALSE,
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FALSE,
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0,
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0,
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complain_overflow_bitfield,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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bfd_elf_generic_reloc,
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"R_MN10300_32",
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"R_MN10300_32",
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FALSE,
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FALSE,
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0xffffffff,
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0xffffffff,
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0xffffffff,
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0xffffffff,
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FALSE),
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FALSE),
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/* Standard 16 bit reloc. */
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/* Standard 16 bit reloc. */
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HOWTO (R_MN10300_16,
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HOWTO (R_MN10300_16,
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0,
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0,
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1,
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1,
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16,
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16,
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FALSE,
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FALSE,
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0,
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0,
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complain_overflow_bitfield,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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bfd_elf_generic_reloc,
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"R_MN10300_16",
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"R_MN10300_16",
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FALSE,
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FALSE,
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0xffff,
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0xffff,
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0xffff,
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0xffff,
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FALSE),
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FALSE),
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/* Standard 8 bit reloc. */
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/* Standard 8 bit reloc. */
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HOWTO (R_MN10300_8,
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HOWTO (R_MN10300_8,
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0,
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0,
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0,
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0,
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8,
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8,
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FALSE,
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FALSE,
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0,
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0,
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complain_overflow_bitfield,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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bfd_elf_generic_reloc,
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"R_MN10300_8",
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"R_MN10300_8",
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FALSE,
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FALSE,
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0xff,
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0xff,
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0xff,
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0xff,
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FALSE),
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FALSE),
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/* Standard 32bit pc-relative reloc. */
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/* Standard 32bit pc-relative reloc. */
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HOWTO (R_MN10300_PCREL32,
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HOWTO (R_MN10300_PCREL32,
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0,
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0,
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2,
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2,
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32,
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32,
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TRUE,
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TRUE,
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0,
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0,
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complain_overflow_bitfield,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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bfd_elf_generic_reloc,
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"R_MN10300_PCREL32",
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"R_MN10300_PCREL32",
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FALSE,
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FALSE,
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0xffffffff,
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0xffffffff,
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0xffffffff,
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0xffffffff,
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TRUE),
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TRUE),
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/* Standard 16bit pc-relative reloc. */
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/* Standard 16bit pc-relative reloc. */
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HOWTO (R_MN10300_PCREL16,
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HOWTO (R_MN10300_PCREL16,
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0,
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0,
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1,
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1,
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16,
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16,
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TRUE,
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TRUE,
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0,
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0,
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complain_overflow_bitfield,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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bfd_elf_generic_reloc,
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"R_MN10300_PCREL16",
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"R_MN10300_PCREL16",
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FALSE,
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FALSE,
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0xffff,
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0xffff,
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0xffff,
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0xffff,
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TRUE),
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TRUE),
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/* Standard 8 pc-relative reloc. */
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/* Standard 8 pc-relative reloc. */
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HOWTO (R_MN10300_PCREL8,
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HOWTO (R_MN10300_PCREL8,
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0,
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0,
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0,
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0,
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8,
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8,
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TRUE,
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TRUE,
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0,
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0,
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complain_overflow_bitfield,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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bfd_elf_generic_reloc,
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"R_MN10300_PCREL8",
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"R_MN10300_PCREL8",
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FALSE,
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FALSE,
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0xff,
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0xff,
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0xff,
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0xff,
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TRUE),
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TRUE),
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/* GNU extension to record C++ vtable hierarchy. */
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/* GNU extension to record C++ vtable hierarchy. */
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HOWTO (R_MN10300_GNU_VTINHERIT, /* type */
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HOWTO (R_MN10300_GNU_VTINHERIT, /* type */
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0, /* rightshift */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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0, /* bitsize */
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FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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complain_overflow_dont, /* complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
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"R_MN10300_GNU_VTINHERIT", /* name */
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"R_MN10300_GNU_VTINHERIT", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* src_mask */
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0, /* dst_mask */
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0, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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|
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/* GNU extension to record C++ vtable member usage */
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/* GNU extension to record C++ vtable member usage */
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HOWTO (R_MN10300_GNU_VTENTRY, /* type */
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HOWTO (R_MN10300_GNU_VTENTRY, /* type */
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0, /* rightshift */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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0, /* bitsize */
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FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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complain_overflow_dont, /* complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
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"R_MN10300_GNU_VTENTRY", /* name */
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"R_MN10300_GNU_VTENTRY", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* src_mask */
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0, /* dst_mask */
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0, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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|
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/* Standard 24 bit reloc. */
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/* Standard 24 bit reloc. */
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HOWTO (R_MN10300_24,
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HOWTO (R_MN10300_24,
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0,
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0,
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2,
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2,
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24,
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24,
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FALSE,
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FALSE,
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0,
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0,
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complain_overflow_bitfield,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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bfd_elf_generic_reloc,
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"R_MN10300_24",
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"R_MN10300_24",
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FALSE,
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FALSE,
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0xffffff,
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0xffffff,
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0xffffff,
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0xffffff,
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FALSE),
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FALSE),
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HOWTO (R_MN10300_GOTPC32, /* type */
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HOWTO (R_MN10300_GOTPC32, /* type */
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0, /* rightshift */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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32, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* */
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bfd_elf_generic_reloc, /* */
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"R_MN10300_GOTPC32", /* name */
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"R_MN10300_GOTPC32", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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TRUE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_GOTPC16, /* type */
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HOWTO (R_MN10300_GOTPC16, /* type */
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0, /* rightshift */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
16, /* bitsize */
|
16, /* bitsize */
|
TRUE, /* pc_relative */
|
TRUE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_GOTPC16", /* name */
|
"R_MN10300_GOTPC16", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffff, /* src_mask */
|
0xffff, /* src_mask */
|
0xffff, /* dst_mask */
|
0xffff, /* dst_mask */
|
TRUE), /* pcrel_offset */
|
TRUE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_GOTOFF32, /* type */
|
HOWTO (R_MN10300_GOTOFF32, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_GOTOFF32", /* name */
|
"R_MN10300_GOTOFF32", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_GOTOFF24, /* type */
|
HOWTO (R_MN10300_GOTOFF24, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
24, /* bitsize */
|
24, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_GOTOFF24", /* name */
|
"R_MN10300_GOTOFF24", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffff, /* src_mask */
|
0xffffff, /* src_mask */
|
0xffffff, /* dst_mask */
|
0xffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_GOTOFF16, /* type */
|
HOWTO (R_MN10300_GOTOFF16, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
16, /* bitsize */
|
16, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_GOTOFF16", /* name */
|
"R_MN10300_GOTOFF16", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffff, /* src_mask */
|
0xffff, /* src_mask */
|
0xffff, /* dst_mask */
|
0xffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_PLT32, /* type */
|
HOWTO (R_MN10300_PLT32, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
TRUE, /* pc_relative */
|
TRUE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_PLT32", /* name */
|
"R_MN10300_PLT32", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
TRUE), /* pcrel_offset */
|
TRUE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_PLT16, /* type */
|
HOWTO (R_MN10300_PLT16, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
16, /* bitsize */
|
16, /* bitsize */
|
TRUE, /* pc_relative */
|
TRUE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_PLT16", /* name */
|
"R_MN10300_PLT16", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffff, /* src_mask */
|
0xffff, /* src_mask */
|
0xffff, /* dst_mask */
|
0xffff, /* dst_mask */
|
TRUE), /* pcrel_offset */
|
TRUE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_GOT32, /* type */
|
HOWTO (R_MN10300_GOT32, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_GOT32", /* name */
|
"R_MN10300_GOT32", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_GOT24, /* type */
|
HOWTO (R_MN10300_GOT24, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
24, /* bitsize */
|
24, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_GOT24", /* name */
|
"R_MN10300_GOT24", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_GOT16, /* type */
|
HOWTO (R_MN10300_GOT16, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
16, /* bitsize */
|
16, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_GOT16", /* name */
|
"R_MN10300_GOT16", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_COPY, /* type */
|
HOWTO (R_MN10300_COPY, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_COPY", /* name */
|
"R_MN10300_COPY", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_GLOB_DAT, /* type */
|
HOWTO (R_MN10300_GLOB_DAT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_GLOB_DAT", /* name */
|
"R_MN10300_GLOB_DAT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_JMP_SLOT, /* type */
|
HOWTO (R_MN10300_JMP_SLOT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_JMP_SLOT", /* name */
|
"R_MN10300_JMP_SLOT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_RELATIVE, /* type */
|
HOWTO (R_MN10300_RELATIVE, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* */
|
bfd_elf_generic_reloc, /* */
|
"R_MN10300_RELATIVE", /* name */
|
"R_MN10300_RELATIVE", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
EMPTY_HOWTO (24),
|
EMPTY_HOWTO (24),
|
EMPTY_HOWTO (25),
|
EMPTY_HOWTO (25),
|
EMPTY_HOWTO (26),
|
EMPTY_HOWTO (26),
|
EMPTY_HOWTO (27),
|
EMPTY_HOWTO (27),
|
EMPTY_HOWTO (28),
|
EMPTY_HOWTO (28),
|
EMPTY_HOWTO (29),
|
EMPTY_HOWTO (29),
|
EMPTY_HOWTO (30),
|
EMPTY_HOWTO (30),
|
EMPTY_HOWTO (31),
|
EMPTY_HOWTO (31),
|
EMPTY_HOWTO (32),
|
EMPTY_HOWTO (32),
|
|
|
HOWTO (R_MN10300_SYM_DIFF, /* type */
|
HOWTO (R_MN10300_SYM_DIFF, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont,/* complain_on_overflow */
|
complain_overflow_dont,/* complain_on_overflow */
|
NULL, /* special handler. */
|
NULL, /* special handler. */
|
"R_MN10300_SYM_DIFF", /* name */
|
"R_MN10300_SYM_DIFF", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_MN10300_ALIGN, /* type */
|
HOWTO (R_MN10300_ALIGN, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont,/* complain_on_overflow */
|
complain_overflow_dont,/* complain_on_overflow */
|
NULL, /* special handler. */
|
NULL, /* special handler. */
|
"R_MN10300_ALIGN", /* name */
|
"R_MN10300_ALIGN", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
FALSE) /* pcrel_offset */
|
FALSE) /* pcrel_offset */
|
};
|
};
|
|
|
struct mn10300_reloc_map
|
struct mn10300_reloc_map
|
{
|
{
|
bfd_reloc_code_real_type bfd_reloc_val;
|
bfd_reloc_code_real_type bfd_reloc_val;
|
unsigned char elf_reloc_val;
|
unsigned char elf_reloc_val;
|
};
|
};
|
|
|
static const struct mn10300_reloc_map mn10300_reloc_map[] =
|
static const struct mn10300_reloc_map mn10300_reloc_map[] =
|
{
|
{
|
{ BFD_RELOC_NONE, R_MN10300_NONE, },
|
{ BFD_RELOC_NONE, R_MN10300_NONE, },
|
{ BFD_RELOC_32, R_MN10300_32, },
|
{ BFD_RELOC_32, R_MN10300_32, },
|
{ BFD_RELOC_16, R_MN10300_16, },
|
{ BFD_RELOC_16, R_MN10300_16, },
|
{ BFD_RELOC_8, R_MN10300_8, },
|
{ BFD_RELOC_8, R_MN10300_8, },
|
{ BFD_RELOC_32_PCREL, R_MN10300_PCREL32, },
|
{ BFD_RELOC_32_PCREL, R_MN10300_PCREL32, },
|
{ BFD_RELOC_16_PCREL, R_MN10300_PCREL16, },
|
{ BFD_RELOC_16_PCREL, R_MN10300_PCREL16, },
|
{ BFD_RELOC_8_PCREL, R_MN10300_PCREL8, },
|
{ BFD_RELOC_8_PCREL, R_MN10300_PCREL8, },
|
{ BFD_RELOC_24, R_MN10300_24, },
|
{ BFD_RELOC_24, R_MN10300_24, },
|
{ BFD_RELOC_VTABLE_INHERIT, R_MN10300_GNU_VTINHERIT },
|
{ BFD_RELOC_VTABLE_INHERIT, R_MN10300_GNU_VTINHERIT },
|
{ BFD_RELOC_VTABLE_ENTRY, R_MN10300_GNU_VTENTRY },
|
{ BFD_RELOC_VTABLE_ENTRY, R_MN10300_GNU_VTENTRY },
|
{ BFD_RELOC_32_GOT_PCREL, R_MN10300_GOTPC32 },
|
{ BFD_RELOC_32_GOT_PCREL, R_MN10300_GOTPC32 },
|
{ BFD_RELOC_16_GOT_PCREL, R_MN10300_GOTPC16 },
|
{ BFD_RELOC_16_GOT_PCREL, R_MN10300_GOTPC16 },
|
{ BFD_RELOC_32_GOTOFF, R_MN10300_GOTOFF32 },
|
{ BFD_RELOC_32_GOTOFF, R_MN10300_GOTOFF32 },
|
{ BFD_RELOC_MN10300_GOTOFF24, R_MN10300_GOTOFF24 },
|
{ BFD_RELOC_MN10300_GOTOFF24, R_MN10300_GOTOFF24 },
|
{ BFD_RELOC_16_GOTOFF, R_MN10300_GOTOFF16 },
|
{ BFD_RELOC_16_GOTOFF, R_MN10300_GOTOFF16 },
|
{ BFD_RELOC_32_PLT_PCREL, R_MN10300_PLT32 },
|
{ BFD_RELOC_32_PLT_PCREL, R_MN10300_PLT32 },
|
{ BFD_RELOC_16_PLT_PCREL, R_MN10300_PLT16 },
|
{ BFD_RELOC_16_PLT_PCREL, R_MN10300_PLT16 },
|
{ BFD_RELOC_MN10300_GOT32, R_MN10300_GOT32 },
|
{ BFD_RELOC_MN10300_GOT32, R_MN10300_GOT32 },
|
{ BFD_RELOC_MN10300_GOT24, R_MN10300_GOT24 },
|
{ BFD_RELOC_MN10300_GOT24, R_MN10300_GOT24 },
|
{ BFD_RELOC_MN10300_GOT16, R_MN10300_GOT16 },
|
{ BFD_RELOC_MN10300_GOT16, R_MN10300_GOT16 },
|
{ BFD_RELOC_MN10300_COPY, R_MN10300_COPY },
|
{ BFD_RELOC_MN10300_COPY, R_MN10300_COPY },
|
{ BFD_RELOC_MN10300_GLOB_DAT, R_MN10300_GLOB_DAT },
|
{ BFD_RELOC_MN10300_GLOB_DAT, R_MN10300_GLOB_DAT },
|
{ BFD_RELOC_MN10300_JMP_SLOT, R_MN10300_JMP_SLOT },
|
{ BFD_RELOC_MN10300_JMP_SLOT, R_MN10300_JMP_SLOT },
|
{ BFD_RELOC_MN10300_RELATIVE, R_MN10300_RELATIVE },
|
{ BFD_RELOC_MN10300_RELATIVE, R_MN10300_RELATIVE },
|
{ BFD_RELOC_MN10300_SYM_DIFF, R_MN10300_SYM_DIFF },
|
{ BFD_RELOC_MN10300_SYM_DIFF, R_MN10300_SYM_DIFF },
|
{ BFD_RELOC_MN10300_ALIGN, R_MN10300_ALIGN }
|
{ BFD_RELOC_MN10300_ALIGN, R_MN10300_ALIGN }
|
};
|
};
|
|
|
/* Create the GOT section. */
|
/* Create the GOT section. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
_bfd_mn10300_elf_create_got_section (bfd * abfd,
|
_bfd_mn10300_elf_create_got_section (bfd * abfd,
|
struct bfd_link_info * info)
|
struct bfd_link_info * info)
|
{
|
{
|
flagword flags;
|
flagword flags;
|
flagword pltflags;
|
flagword pltflags;
|
asection * s;
|
asection * s;
|
struct elf_link_hash_entry * h;
|
struct elf_link_hash_entry * h;
|
const struct elf_backend_data * bed = get_elf_backend_data (abfd);
|
const struct elf_backend_data * bed = get_elf_backend_data (abfd);
|
int ptralign;
|
int ptralign;
|
|
|
/* This function may be called more than once. */
|
/* This function may be called more than once. */
|
if (bfd_get_section_by_name (abfd, ".got") != NULL)
|
if (bfd_get_section_by_name (abfd, ".got") != NULL)
|
return TRUE;
|
return TRUE;
|
|
|
switch (bed->s->arch_size)
|
switch (bed->s->arch_size)
|
{
|
{
|
case 32:
|
case 32:
|
ptralign = 2;
|
ptralign = 2;
|
break;
|
break;
|
|
|
case 64:
|
case 64:
|
ptralign = 3;
|
ptralign = 3;
|
break;
|
break;
|
|
|
default:
|
default:
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
|
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
|
| SEC_LINKER_CREATED);
|
| SEC_LINKER_CREATED);
|
|
|
pltflags = flags;
|
pltflags = flags;
|
pltflags |= SEC_CODE;
|
pltflags |= SEC_CODE;
|
if (bed->plt_not_loaded)
|
if (bed->plt_not_loaded)
|
pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
|
pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
|
if (bed->plt_readonly)
|
if (bed->plt_readonly)
|
pltflags |= SEC_READONLY;
|
pltflags |= SEC_READONLY;
|
|
|
s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
|
s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
|
if (s == NULL
|
if (s == NULL
|
|| ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
|
|| ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
|
return FALSE;
|
return FALSE;
|
|
|
/* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
|
/* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
|
.plt section. */
|
.plt section. */
|
if (bed->want_plt_sym)
|
if (bed->want_plt_sym)
|
{
|
{
|
h = _bfd_elf_define_linkage_sym (abfd, info, s,
|
h = _bfd_elf_define_linkage_sym (abfd, info, s,
|
"_PROCEDURE_LINKAGE_TABLE_");
|
"_PROCEDURE_LINKAGE_TABLE_");
|
elf_hash_table (info)->hplt = h;
|
elf_hash_table (info)->hplt = h;
|
if (h == NULL)
|
if (h == NULL)
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
s = bfd_make_section_with_flags (abfd, ".got", flags);
|
s = bfd_make_section_with_flags (abfd, ".got", flags);
|
if (s == NULL
|
if (s == NULL
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
return FALSE;
|
return FALSE;
|
|
|
if (bed->want_got_plt)
|
if (bed->want_got_plt)
|
{
|
{
|
s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
|
s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
|
if (s == NULL
|
if (s == NULL
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
|
/* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
|
(or .got.plt) section. We don't do this in the linker script
|
(or .got.plt) section. We don't do this in the linker script
|
because we don't want to define the symbol if we are not creating
|
because we don't want to define the symbol if we are not creating
|
a global offset table. */
|
a global offset table. */
|
h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
|
h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
|
elf_hash_table (info)->hgot = h;
|
elf_hash_table (info)->hgot = h;
|
if (h == NULL)
|
if (h == NULL)
|
return FALSE;
|
return FALSE;
|
|
|
/* The first bit of the global offset table is the header. */
|
/* The first bit of the global offset table is the header. */
|
s->size += bed->got_header_size;
|
s->size += bed->got_header_size;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
bfd_reloc_code_real_type code)
|
bfd_reloc_code_real_type code)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = ARRAY_SIZE (mn10300_reloc_map); i--;)
|
for (i = ARRAY_SIZE (mn10300_reloc_map); i--;)
|
if (mn10300_reloc_map[i].bfd_reloc_val == code)
|
if (mn10300_reloc_map[i].bfd_reloc_val == code)
|
return &elf_mn10300_howto_table[mn10300_reloc_map[i].elf_reloc_val];
|
return &elf_mn10300_howto_table[mn10300_reloc_map[i].elf_reloc_val];
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
const char *r_name)
|
const char *r_name)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = ARRAY_SIZE (elf_mn10300_howto_table); i--;)
|
for (i = ARRAY_SIZE (elf_mn10300_howto_table); i--;)
|
if (elf_mn10300_howto_table[i].name != NULL
|
if (elf_mn10300_howto_table[i].name != NULL
|
&& strcasecmp (elf_mn10300_howto_table[i].name, r_name) == 0)
|
&& strcasecmp (elf_mn10300_howto_table[i].name, r_name) == 0)
|
return elf_mn10300_howto_table + i;
|
return elf_mn10300_howto_table + i;
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Set the howto pointer for an MN10300 ELF reloc. */
|
/* Set the howto pointer for an MN10300 ELF reloc. */
|
|
|
static void
|
static void
|
mn10300_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
|
mn10300_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
|
arelent *cache_ptr,
|
arelent *cache_ptr,
|
Elf_Internal_Rela *dst)
|
Elf_Internal_Rela *dst)
|
{
|
{
|
unsigned int r_type;
|
unsigned int r_type;
|
|
|
r_type = ELF32_R_TYPE (dst->r_info);
|
r_type = ELF32_R_TYPE (dst->r_info);
|
BFD_ASSERT (r_type < (unsigned int) R_MN10300_MAX);
|
BFD_ASSERT (r_type < (unsigned int) R_MN10300_MAX);
|
cache_ptr->howto = elf_mn10300_howto_table + r_type;
|
cache_ptr->howto = elf_mn10300_howto_table + r_type;
|
}
|
}
|
|
|
/* Look through the relocs for a section during the first phase.
|
/* Look through the relocs for a section during the first phase.
|
Since we don't do .gots or .plts, we just need to consider the
|
Since we don't do .gots or .plts, we just need to consider the
|
virtual table relocs for gc. */
|
virtual table relocs for gc. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
mn10300_elf_check_relocs (bfd *abfd,
|
mn10300_elf_check_relocs (bfd *abfd,
|
struct bfd_link_info *info,
|
struct bfd_link_info *info,
|
asection *sec,
|
asection *sec,
|
const Elf_Internal_Rela *relocs)
|
const Elf_Internal_Rela *relocs)
|
{
|
{
|
bfd_boolean sym_diff_reloc_seen;
|
bfd_boolean sym_diff_reloc_seen;
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Sym * isymbuf = NULL;
|
Elf_Internal_Sym * isymbuf = NULL;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel_end;
|
const Elf_Internal_Rela *rel_end;
|
bfd * dynobj;
|
bfd * dynobj;
|
bfd_vma * local_got_offsets;
|
bfd_vma * local_got_offsets;
|
asection * sgot;
|
asection * sgot;
|
asection * srelgot;
|
asection * srelgot;
|
asection * sreloc;
|
asection * sreloc;
|
bfd_boolean result = FALSE;
|
bfd_boolean result = FALSE;
|
|
|
sgot = NULL;
|
sgot = NULL;
|
srelgot = NULL;
|
srelgot = NULL;
|
sreloc = NULL;
|
sreloc = NULL;
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
return TRUE;
|
return TRUE;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
sym_hashes = elf_sym_hashes (abfd);
|
sym_hashes = elf_sym_hashes (abfd);
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
local_got_offsets = elf_local_got_offsets (abfd);
|
local_got_offsets = elf_local_got_offsets (abfd);
|
rel_end = relocs + sec->reloc_count;
|
rel_end = relocs + sec->reloc_count;
|
sym_diff_reloc_seen = FALSE;
|
sym_diff_reloc_seen = FALSE;
|
|
|
for (rel = relocs; rel < rel_end; rel++)
|
for (rel = relocs; rel < rel_end; rel++)
|
{
|
{
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
unsigned int r_type;
|
unsigned int r_type;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
h = NULL;
|
h = NULL;
|
else
|
else
|
{
|
{
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
while (h->root.type == bfd_link_hash_indirect
|
while (h->root.type == bfd_link_hash_indirect
|
|| h->root.type == bfd_link_hash_warning)
|
|| h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
}
|
}
|
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
r_type = ELF32_R_TYPE (rel->r_info);
|
|
|
/* Some relocs require a global offset table. */
|
/* Some relocs require a global offset table. */
|
if (dynobj == NULL)
|
if (dynobj == NULL)
|
{
|
{
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_MN10300_GOT32:
|
case R_MN10300_GOT32:
|
case R_MN10300_GOT24:
|
case R_MN10300_GOT24:
|
case R_MN10300_GOT16:
|
case R_MN10300_GOT16:
|
case R_MN10300_GOTOFF32:
|
case R_MN10300_GOTOFF32:
|
case R_MN10300_GOTOFF24:
|
case R_MN10300_GOTOFF24:
|
case R_MN10300_GOTOFF16:
|
case R_MN10300_GOTOFF16:
|
case R_MN10300_GOTPC32:
|
case R_MN10300_GOTPC32:
|
case R_MN10300_GOTPC16:
|
case R_MN10300_GOTPC16:
|
elf_hash_table (info)->dynobj = dynobj = abfd;
|
elf_hash_table (info)->dynobj = dynobj = abfd;
|
if (! _bfd_mn10300_elf_create_got_section (dynobj, info))
|
if (! _bfd_mn10300_elf_create_got_section (dynobj, info))
|
goto fail;
|
goto fail;
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
/* This relocation describes the C++ object vtable hierarchy.
|
/* This relocation describes the C++ object vtable hierarchy.
|
Reconstruct it for later use during GC. */
|
Reconstruct it for later use during GC. */
|
case R_MN10300_GNU_VTINHERIT:
|
case R_MN10300_GNU_VTINHERIT:
|
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
goto fail;
|
goto fail;
|
break;
|
break;
|
|
|
/* This relocation describes which C++ vtable entries are actually
|
/* This relocation describes which C++ vtable entries are actually
|
used. Record for later use during GC. */
|
used. Record for later use during GC. */
|
case R_MN10300_GNU_VTENTRY:
|
case R_MN10300_GNU_VTENTRY:
|
BFD_ASSERT (h != NULL);
|
BFD_ASSERT (h != NULL);
|
if (h != NULL
|
if (h != NULL
|
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
goto fail;
|
goto fail;
|
break;
|
break;
|
|
|
case R_MN10300_GOT32:
|
case R_MN10300_GOT32:
|
case R_MN10300_GOT24:
|
case R_MN10300_GOT24:
|
case R_MN10300_GOT16:
|
case R_MN10300_GOT16:
|
/* This symbol requires a global offset table entry. */
|
/* This symbol requires a global offset table entry. */
|
|
|
if (sgot == NULL)
|
if (sgot == NULL)
|
{
|
{
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
BFD_ASSERT (sgot != NULL);
|
BFD_ASSERT (sgot != NULL);
|
}
|
}
|
|
|
if (srelgot == NULL
|
if (srelgot == NULL
|
&& (h != NULL || info->shared))
|
&& (h != NULL || info->shared))
|
{
|
{
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
if (srelgot == NULL)
|
if (srelgot == NULL)
|
{
|
{
|
srelgot = bfd_make_section_with_flags (dynobj,
|
srelgot = bfd_make_section_with_flags (dynobj,
|
".rela.got",
|
".rela.got",
|
(SEC_ALLOC
|
(SEC_ALLOC
|
| SEC_LOAD
|
| SEC_LOAD
|
| SEC_HAS_CONTENTS
|
| SEC_HAS_CONTENTS
|
| SEC_IN_MEMORY
|
| SEC_IN_MEMORY
|
| SEC_LINKER_CREATED
|
| SEC_LINKER_CREATED
|
| SEC_READONLY));
|
| SEC_READONLY));
|
if (srelgot == NULL
|
if (srelgot == NULL
|
|| ! bfd_set_section_alignment (dynobj, srelgot, 2))
|
|| ! bfd_set_section_alignment (dynobj, srelgot, 2))
|
goto fail;
|
goto fail;
|
}
|
}
|
}
|
}
|
|
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
if (h->got.offset != (bfd_vma) -1)
|
if (h->got.offset != (bfd_vma) -1)
|
/* We have already allocated space in the .got. */
|
/* We have already allocated space in the .got. */
|
break;
|
break;
|
|
|
h->got.offset = sgot->size;
|
h->got.offset = sgot->size;
|
|
|
/* Make sure this symbol is output as a dynamic symbol. */
|
/* Make sure this symbol is output as a dynamic symbol. */
|
if (h->dynindx == -1)
|
if (h->dynindx == -1)
|
{
|
{
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
goto fail;
|
goto fail;
|
}
|
}
|
|
|
srelgot->size += sizeof (Elf32_External_Rela);
|
srelgot->size += sizeof (Elf32_External_Rela);
|
}
|
}
|
else
|
else
|
{
|
{
|
/* This is a global offset table entry for a local
|
/* This is a global offset table entry for a local
|
symbol. */
|
symbol. */
|
if (local_got_offsets == NULL)
|
if (local_got_offsets == NULL)
|
{
|
{
|
size_t size;
|
size_t size;
|
unsigned int i;
|
unsigned int i;
|
|
|
size = symtab_hdr->sh_info * sizeof (bfd_vma);
|
size = symtab_hdr->sh_info * sizeof (bfd_vma);
|
local_got_offsets = bfd_alloc (abfd, size);
|
local_got_offsets = bfd_alloc (abfd, size);
|
|
|
if (local_got_offsets == NULL)
|
if (local_got_offsets == NULL)
|
goto fail;
|
goto fail;
|
|
|
elf_local_got_offsets (abfd) = local_got_offsets;
|
elf_local_got_offsets (abfd) = local_got_offsets;
|
|
|
for (i = 0; i < symtab_hdr->sh_info; i++)
|
for (i = 0; i < symtab_hdr->sh_info; i++)
|
local_got_offsets[i] = (bfd_vma) -1;
|
local_got_offsets[i] = (bfd_vma) -1;
|
}
|
}
|
|
|
if (local_got_offsets[r_symndx] != (bfd_vma) -1)
|
if (local_got_offsets[r_symndx] != (bfd_vma) -1)
|
/* We have already allocated space in the .got. */
|
/* We have already allocated space in the .got. */
|
break;
|
break;
|
|
|
local_got_offsets[r_symndx] = sgot->size;
|
local_got_offsets[r_symndx] = sgot->size;
|
|
|
if (info->shared)
|
if (info->shared)
|
/* If we are generating a shared object, we need to
|
/* If we are generating a shared object, we need to
|
output a R_MN10300_RELATIVE reloc so that the dynamic
|
output a R_MN10300_RELATIVE reloc so that the dynamic
|
linker can adjust this GOT entry. */
|
linker can adjust this GOT entry. */
|
srelgot->size += sizeof (Elf32_External_Rela);
|
srelgot->size += sizeof (Elf32_External_Rela);
|
}
|
}
|
|
|
sgot->size += 4;
|
sgot->size += 4;
|
break;
|
break;
|
|
|
case R_MN10300_PLT32:
|
case R_MN10300_PLT32:
|
case R_MN10300_PLT16:
|
case R_MN10300_PLT16:
|
/* This symbol requires a procedure linkage table entry. We
|
/* This symbol requires a procedure linkage table entry. We
|
actually build the entry in adjust_dynamic_symbol,
|
actually build the entry in adjust_dynamic_symbol,
|
because this might be a case of linking PIC code which is
|
because this might be a case of linking PIC code which is
|
never referenced by a dynamic object, in which case we
|
never referenced by a dynamic object, in which case we
|
don't need to generate a procedure linkage table entry
|
don't need to generate a procedure linkage table entry
|
after all. */
|
after all. */
|
|
|
/* If this is a local symbol, we resolve it directly without
|
/* If this is a local symbol, we resolve it directly without
|
creating a procedure linkage table entry. */
|
creating a procedure linkage table entry. */
|
if (h == NULL)
|
if (h == NULL)
|
continue;
|
continue;
|
|
|
if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
|
if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
|
|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
|
|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
|
break;
|
break;
|
|
|
h->needs_plt = 1;
|
h->needs_plt = 1;
|
break;
|
break;
|
|
|
case R_MN10300_24:
|
case R_MN10300_24:
|
case R_MN10300_16:
|
case R_MN10300_16:
|
case R_MN10300_8:
|
case R_MN10300_8:
|
case R_MN10300_PCREL32:
|
case R_MN10300_PCREL32:
|
case R_MN10300_PCREL16:
|
case R_MN10300_PCREL16:
|
case R_MN10300_PCREL8:
|
case R_MN10300_PCREL8:
|
if (h != NULL)
|
if (h != NULL)
|
h->non_got_ref = 1;
|
h->non_got_ref = 1;
|
break;
|
break;
|
|
|
case R_MN10300_SYM_DIFF:
|
case R_MN10300_SYM_DIFF:
|
sym_diff_reloc_seen = TRUE;
|
sym_diff_reloc_seen = TRUE;
|
break;
|
break;
|
|
|
case R_MN10300_32:
|
case R_MN10300_32:
|
if (h != NULL)
|
if (h != NULL)
|
h->non_got_ref = 1;
|
h->non_got_ref = 1;
|
|
|
/* If we are creating a shared library, then we
|
/* If we are creating a shared library, then we
|
need to copy the reloc into the shared library. */
|
need to copy the reloc into the shared library. */
|
if (info->shared
|
if (info->shared
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& (sec->flags & SEC_ALLOC) != 0
|
/* Do not generate a dynamic reloc for a
|
/* Do not generate a dynamic reloc for a
|
reloc associated with a SYM_DIFF operation. */
|
reloc associated with a SYM_DIFF operation. */
|
&& ! sym_diff_reloc_seen)
|
&& ! sym_diff_reloc_seen)
|
{
|
{
|
asection * sym_section = NULL;
|
asection * sym_section = NULL;
|
|
|
/* Find the section containing the
|
/* Find the section containing the
|
symbol involved in the relocation. */
|
symbol involved in the relocation. */
|
if (h == NULL)
|
if (h == NULL)
|
{
|
{
|
Elf_Internal_Sym * isym;
|
Elf_Internal_Sym * isym;
|
|
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
|
isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
|
symtab_hdr->sh_info, 0,
|
symtab_hdr->sh_info, 0,
|
NULL, NULL, NULL);
|
NULL, NULL, NULL);
|
if (isymbuf)
|
if (isymbuf)
|
{
|
{
|
isym = isymbuf + r_symndx;
|
isym = isymbuf + r_symndx;
|
/* All we care about is whether this local symbol is absolute. */
|
/* All we care about is whether this local symbol is absolute. */
|
if (isym->st_shndx == SHN_ABS)
|
if (isym->st_shndx == SHN_ABS)
|
sym_section = bfd_abs_section_ptr;
|
sym_section = bfd_abs_section_ptr;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if (h->root.type == bfd_link_hash_defined
|
if (h->root.type == bfd_link_hash_defined
|
|| h->root.type == bfd_link_hash_defweak)
|
|| h->root.type == bfd_link_hash_defweak)
|
sym_section = h->root.u.def.section;
|
sym_section = h->root.u.def.section;
|
}
|
}
|
|
|
/* If the symbol is absolute then the relocation can
|
/* If the symbol is absolute then the relocation can
|
be resolved during linking and there is no need for
|
be resolved during linking and there is no need for
|
a dynamic reloc. */
|
a dynamic reloc. */
|
if (sym_section != bfd_abs_section_ptr)
|
if (sym_section != bfd_abs_section_ptr)
|
{
|
{
|
/* When creating a shared object, we must copy these
|
/* When creating a shared object, we must copy these
|
reloc types into the output file. We create a reloc
|
reloc types into the output file. We create a reloc
|
section in dynobj and make room for this reloc. */
|
section in dynobj and make room for this reloc. */
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
{
|
{
|
const char * name;
|
const char * name;
|
|
|
name = (bfd_elf_string_from_elf_section
|
name = (bfd_elf_string_from_elf_section
|
(abfd,
|
(abfd,
|
elf_elfheader (abfd)->e_shstrndx,
|
elf_elfheader (abfd)->e_shstrndx,
|
elf_section_data (sec)->rel_hdr.sh_name));
|
elf_section_data (sec)->rel_hdr.sh_name));
|
if (name == NULL)
|
if (name == NULL)
|
goto fail;
|
goto fail;
|
|
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
&& streq (bfd_get_section_name (abfd, sec), name + 5));
|
&& streq (bfd_get_section_name (abfd, sec), name + 5));
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
{
|
{
|
flagword flags;
|
flagword flags;
|
|
|
flags = (SEC_HAS_CONTENTS | SEC_READONLY
|
flags = (SEC_HAS_CONTENTS | SEC_READONLY
|
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
|
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
|
if ((sec->flags & SEC_ALLOC) != 0)
|
if ((sec->flags & SEC_ALLOC) != 0)
|
flags |= SEC_ALLOC | SEC_LOAD;
|
flags |= SEC_ALLOC | SEC_LOAD;
|
sreloc = bfd_make_section_with_flags (dynobj, name, flags);
|
sreloc = bfd_make_section_with_flags (dynobj, name, flags);
|
if (sreloc == NULL
|
if (sreloc == NULL
|
|| ! bfd_set_section_alignment (dynobj, sreloc, 2))
|
|| ! bfd_set_section_alignment (dynobj, sreloc, 2))
|
goto fail;
|
goto fail;
|
}
|
}
|
}
|
}
|
|
|
sreloc->size += sizeof (Elf32_External_Rela);
|
sreloc->size += sizeof (Elf32_External_Rela);
|
}
|
}
|
}
|
}
|
|
|
break;
|
break;
|
}
|
}
|
|
|
if (ELF32_R_TYPE (rel->r_info) != R_MN10300_SYM_DIFF)
|
if (ELF32_R_TYPE (rel->r_info) != R_MN10300_SYM_DIFF)
|
sym_diff_reloc_seen = FALSE;
|
sym_diff_reloc_seen = FALSE;
|
}
|
}
|
|
|
result = TRUE;
|
result = TRUE;
|
fail:
|
fail:
|
if (isymbuf != NULL)
|
if (isymbuf != NULL)
|
free (isymbuf);
|
free (isymbuf);
|
|
|
return result;
|
return result;
|
}
|
}
|
|
|
/* Return the section that should be marked against GC for a given
|
/* Return the section that should be marked against GC for a given
|
relocation. */
|
relocation. */
|
|
|
static asection *
|
static asection *
|
mn10300_elf_gc_mark_hook (asection *sec,
|
mn10300_elf_gc_mark_hook (asection *sec,
|
struct bfd_link_info *info,
|
struct bfd_link_info *info,
|
Elf_Internal_Rela *rel,
|
Elf_Internal_Rela *rel,
|
struct elf_link_hash_entry *h,
|
struct elf_link_hash_entry *h,
|
Elf_Internal_Sym *sym)
|
Elf_Internal_Sym *sym)
|
{
|
{
|
if (h != NULL)
|
if (h != NULL)
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
case R_MN10300_GNU_VTINHERIT:
|
case R_MN10300_GNU_VTINHERIT:
|
case R_MN10300_GNU_VTENTRY:
|
case R_MN10300_GNU_VTENTRY:
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
}
|
}
|
|
|
/* Perform a relocation as part of a final link. */
|
/* Perform a relocation as part of a final link. */
|
|
|
static bfd_reloc_status_type
|
static bfd_reloc_status_type
|
mn10300_elf_final_link_relocate (reloc_howto_type *howto,
|
mn10300_elf_final_link_relocate (reloc_howto_type *howto,
|
bfd *input_bfd,
|
bfd *input_bfd,
|
bfd *output_bfd ATTRIBUTE_UNUSED,
|
bfd *output_bfd ATTRIBUTE_UNUSED,
|
asection *input_section,
|
asection *input_section,
|
bfd_byte *contents,
|
bfd_byte *contents,
|
bfd_vma offset,
|
bfd_vma offset,
|
bfd_vma value,
|
bfd_vma value,
|
bfd_vma addend,
|
bfd_vma addend,
|
struct elf_link_hash_entry * h,
|
struct elf_link_hash_entry * h,
|
unsigned long symndx,
|
unsigned long symndx,
|
struct bfd_link_info *info,
|
struct bfd_link_info *info,
|
asection *sym_sec ATTRIBUTE_UNUSED,
|
asection *sym_sec ATTRIBUTE_UNUSED,
|
int is_local ATTRIBUTE_UNUSED)
|
int is_local ATTRIBUTE_UNUSED)
|
{
|
{
|
static asection * sym_diff_section;
|
static asection * sym_diff_section;
|
static bfd_vma sym_diff_value;
|
static bfd_vma sym_diff_value;
|
bfd_boolean is_sym_diff_reloc;
|
bfd_boolean is_sym_diff_reloc;
|
unsigned long r_type = howto->type;
|
unsigned long r_type = howto->type;
|
bfd_byte * hit_data = contents + offset;
|
bfd_byte * hit_data = contents + offset;
|
bfd * dynobj;
|
bfd * dynobj;
|
bfd_vma * local_got_offsets;
|
bfd_vma * local_got_offsets;
|
asection * sgot;
|
asection * sgot;
|
asection * splt;
|
asection * splt;
|
asection * sreloc;
|
asection * sreloc;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
|
|
sgot = NULL;
|
sgot = NULL;
|
splt = NULL;
|
splt = NULL;
|
sreloc = NULL;
|
sreloc = NULL;
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_MN10300_24:
|
case R_MN10300_24:
|
case R_MN10300_16:
|
case R_MN10300_16:
|
case R_MN10300_8:
|
case R_MN10300_8:
|
case R_MN10300_PCREL8:
|
case R_MN10300_PCREL8:
|
case R_MN10300_PCREL16:
|
case R_MN10300_PCREL16:
|
case R_MN10300_PCREL32:
|
case R_MN10300_PCREL32:
|
case R_MN10300_GOTOFF32:
|
case R_MN10300_GOTOFF32:
|
case R_MN10300_GOTOFF24:
|
case R_MN10300_GOTOFF24:
|
case R_MN10300_GOTOFF16:
|
case R_MN10300_GOTOFF16:
|
if (info->shared
|
if (info->shared
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& h != NULL
|
&& h != NULL
|
&& ! SYMBOL_REFERENCES_LOCAL (info, h))
|
&& ! SYMBOL_REFERENCES_LOCAL (info, h))
|
return bfd_reloc_dangerous;
|
return bfd_reloc_dangerous;
|
}
|
}
|
|
|
is_sym_diff_reloc = FALSE;
|
is_sym_diff_reloc = FALSE;
|
if (sym_diff_section != NULL)
|
if (sym_diff_section != NULL)
|
{
|
{
|
BFD_ASSERT (sym_diff_section == input_section);
|
BFD_ASSERT (sym_diff_section == input_section);
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_MN10300_32:
|
case R_MN10300_32:
|
case R_MN10300_24:
|
case R_MN10300_24:
|
case R_MN10300_16:
|
case R_MN10300_16:
|
case R_MN10300_8:
|
case R_MN10300_8:
|
value -= sym_diff_value;
|
value -= sym_diff_value;
|
/* If we are computing a 32-bit value for the location lists
|
/* If we are computing a 32-bit value for the location lists
|
and the result is 0 then we add one to the value. A zero
|
and the result is 0 then we add one to the value. A zero
|
value can result because of linker relaxation deleteing
|
value can result because of linker relaxation deleteing
|
prologue instructions and using a value of 1 (for the begin
|
prologue instructions and using a value of 1 (for the begin
|
and end offsets in the location list entry) results in a
|
and end offsets in the location list entry) results in a
|
nul entry which does not prevent the following entries from
|
nul entry which does not prevent the following entries from
|
being parsed. */
|
being parsed. */
|
if (r_type == R_MN10300_32
|
if (r_type == R_MN10300_32
|
&& value == 0
|
&& value == 0
|
&& strcmp (input_section->name, ".debug_loc") == 0)
|
&& strcmp (input_section->name, ".debug_loc") == 0)
|
value = 1;
|
value = 1;
|
sym_diff_section = NULL;
|
sym_diff_section = NULL;
|
is_sym_diff_reloc = TRUE;
|
is_sym_diff_reloc = TRUE;
|
break;
|
break;
|
|
|
default:
|
default:
|
sym_diff_section = NULL;
|
sym_diff_section = NULL;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_MN10300_SYM_DIFF:
|
case R_MN10300_SYM_DIFF:
|
BFD_ASSERT (addend == 0);
|
BFD_ASSERT (addend == 0);
|
/* Cache the input section and value.
|
/* Cache the input section and value.
|
The offset is unreliable, since relaxation may
|
The offset is unreliable, since relaxation may
|
have reduced the following reloc's offset. */
|
have reduced the following reloc's offset. */
|
sym_diff_section = input_section;
|
sym_diff_section = input_section;
|
sym_diff_value = value;
|
sym_diff_value = value;
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_ALIGN:
|
case R_MN10300_ALIGN:
|
case R_MN10300_NONE:
|
case R_MN10300_NONE:
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_32:
|
case R_MN10300_32:
|
if (info->shared
|
if (info->shared
|
/* Do not generate relocs when an R_MN10300_32 has been used
|
/* Do not generate relocs when an R_MN10300_32 has been used
|
with an R_MN10300_SYM_DIFF to compute a difference of two
|
with an R_MN10300_SYM_DIFF to compute a difference of two
|
symbols. */
|
symbols. */
|
&& is_sym_diff_reloc == FALSE
|
&& is_sym_diff_reloc == FALSE
|
/* Also, do not generate a reloc when the symbol associated
|
/* Also, do not generate a reloc when the symbol associated
|
with the R_MN10300_32 reloc is absolute - there is no
|
with the R_MN10300_32 reloc is absolute - there is no
|
need for a run time computation in this case. */
|
need for a run time computation in this case. */
|
&& sym_sec != bfd_abs_section_ptr
|
&& sym_sec != bfd_abs_section_ptr
|
/* If the section is not going to be allocated at load time
|
/* If the section is not going to be allocated at load time
|
then there is no need to generate relocs for it. */
|
then there is no need to generate relocs for it. */
|
&& (input_section->flags & SEC_ALLOC) != 0)
|
&& (input_section->flags & SEC_ALLOC) != 0)
|
{
|
{
|
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
bfd_boolean skip, relocate;
|
bfd_boolean skip, relocate;
|
|
|
/* When generating a shared object, these relocations are
|
/* When generating a shared object, these relocations are
|
copied into the output file to be resolved at run
|
copied into the output file to be resolved at run
|
time. */
|
time. */
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
{
|
{
|
const char * name;
|
const char * name;
|
|
|
name = (bfd_elf_string_from_elf_section
|
name = (bfd_elf_string_from_elf_section
|
(input_bfd,
|
(input_bfd,
|
elf_elfheader (input_bfd)->e_shstrndx,
|
elf_elfheader (input_bfd)->e_shstrndx,
|
elf_section_data (input_section)->rel_hdr.sh_name));
|
elf_section_data (input_section)->rel_hdr.sh_name));
|
if (name == NULL)
|
if (name == NULL)
|
return FALSE;
|
return FALSE;
|
|
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
&& streq (bfd_get_section_name (input_bfd,
|
&& streq (bfd_get_section_name (input_bfd,
|
input_section),
|
input_section),
|
name + 5));
|
name + 5));
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
BFD_ASSERT (sreloc != NULL);
|
BFD_ASSERT (sreloc != NULL);
|
}
|
}
|
|
|
skip = FALSE;
|
skip = FALSE;
|
|
|
outrel.r_offset = _bfd_elf_section_offset (input_bfd, info,
|
outrel.r_offset = _bfd_elf_section_offset (input_bfd, info,
|
input_section, offset);
|
input_section, offset);
|
if (outrel.r_offset == (bfd_vma) -1)
|
if (outrel.r_offset == (bfd_vma) -1)
|
skip = TRUE;
|
skip = TRUE;
|
|
|
outrel.r_offset += (input_section->output_section->vma
|
outrel.r_offset += (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
|
|
if (skip)
|
if (skip)
|
{
|
{
|
memset (&outrel, 0, sizeof outrel);
|
memset (&outrel, 0, sizeof outrel);
|
relocate = FALSE;
|
relocate = FALSE;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* h->dynindx may be -1 if this symbol was marked to
|
/* h->dynindx may be -1 if this symbol was marked to
|
become local. */
|
become local. */
|
if (h == NULL
|
if (h == NULL
|
|| SYMBOL_REFERENCES_LOCAL (info, h))
|
|| SYMBOL_REFERENCES_LOCAL (info, h))
|
{
|
{
|
relocate = TRUE;
|
relocate = TRUE;
|
outrel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE);
|
outrel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE);
|
outrel.r_addend = value + addend;
|
outrel.r_addend = value + addend;
|
}
|
}
|
else
|
else
|
{
|
{
|
BFD_ASSERT (h->dynindx != -1);
|
BFD_ASSERT (h->dynindx != -1);
|
relocate = FALSE;
|
relocate = FALSE;
|
outrel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_32);
|
outrel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_32);
|
outrel.r_addend = value + addend;
|
outrel.r_addend = value + addend;
|
}
|
}
|
}
|
}
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
(bfd_byte *) (((Elf32_External_Rela *) sreloc->contents)
|
(bfd_byte *) (((Elf32_External_Rela *) sreloc->contents)
|
+ sreloc->reloc_count));
|
+ sreloc->reloc_count));
|
++sreloc->reloc_count;
|
++sreloc->reloc_count;
|
|
|
/* If this reloc is against an external symbol, we do
|
/* If this reloc is against an external symbol, we do
|
not want to fiddle with the addend. Otherwise, we
|
not want to fiddle with the addend. Otherwise, we
|
need to include the symbol value so that it becomes
|
need to include the symbol value so that it becomes
|
an addend for the dynamic reloc. */
|
an addend for the dynamic reloc. */
|
if (! relocate)
|
if (! relocate)
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
}
|
}
|
value += addend;
|
value += addend;
|
bfd_put_32 (input_bfd, value, hit_data);
|
bfd_put_32 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_24:
|
case R_MN10300_24:
|
value += addend;
|
value += addend;
|
|
|
if ((long) value > 0x7fffff || (long) value < -0x800000)
|
if ((long) value > 0x7fffff || (long) value < -0x800000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_8 (input_bfd, value & 0xff, hit_data);
|
bfd_put_8 (input_bfd, value & 0xff, hit_data);
|
bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1);
|
bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1);
|
bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2);
|
bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_16:
|
case R_MN10300_16:
|
value += addend;
|
value += addend;
|
|
|
if ((long) value > 0x7fff || (long) value < -0x8000)
|
if ((long) value > 0x7fff || (long) value < -0x8000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
bfd_put_16 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_8:
|
case R_MN10300_8:
|
value += addend;
|
value += addend;
|
|
|
if ((long) value > 0x7f || (long) value < -0x80)
|
if ((long) value > 0x7f || (long) value < -0x80)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_8 (input_bfd, value, hit_data);
|
bfd_put_8 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_PCREL8:
|
case R_MN10300_PCREL8:
|
value -= (input_section->output_section->vma
|
value -= (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
value -= offset;
|
value -= offset;
|
value += addend;
|
value += addend;
|
|
|
if ((long) value > 0xff || (long) value < -0x100)
|
if ((long) value > 0xff || (long) value < -0x100)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_8 (input_bfd, value, hit_data);
|
bfd_put_8 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_PCREL16:
|
case R_MN10300_PCREL16:
|
value -= (input_section->output_section->vma
|
value -= (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
value -= offset;
|
value -= offset;
|
value += addend;
|
value += addend;
|
|
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
bfd_put_16 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_PCREL32:
|
case R_MN10300_PCREL32:
|
value -= (input_section->output_section->vma
|
value -= (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
value -= offset;
|
value -= offset;
|
value += addend;
|
value += addend;
|
|
|
bfd_put_32 (input_bfd, value, hit_data);
|
bfd_put_32 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_GNU_VTINHERIT:
|
case R_MN10300_GNU_VTINHERIT:
|
case R_MN10300_GNU_VTENTRY:
|
case R_MN10300_GNU_VTENTRY:
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_GOTPC32:
|
case R_MN10300_GOTPC32:
|
/* Use global offset table as symbol value. */
|
/* Use global offset table as symbol value. */
|
value = bfd_get_section_by_name (dynobj,
|
value = bfd_get_section_by_name (dynobj,
|
".got")->output_section->vma;
|
".got")->output_section->vma;
|
value -= (input_section->output_section->vma
|
value -= (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
value -= offset;
|
value -= offset;
|
value += addend;
|
value += addend;
|
|
|
bfd_put_32 (input_bfd, value, hit_data);
|
bfd_put_32 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_GOTPC16:
|
case R_MN10300_GOTPC16:
|
/* Use global offset table as symbol value. */
|
/* Use global offset table as symbol value. */
|
value = bfd_get_section_by_name (dynobj,
|
value = bfd_get_section_by_name (dynobj,
|
".got")->output_section->vma;
|
".got")->output_section->vma;
|
value -= (input_section->output_section->vma
|
value -= (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
value -= offset;
|
value -= offset;
|
value += addend;
|
value += addend;
|
|
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
bfd_put_16 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_GOTOFF32:
|
case R_MN10300_GOTOFF32:
|
value -= bfd_get_section_by_name (dynobj,
|
value -= bfd_get_section_by_name (dynobj,
|
".got")->output_section->vma;
|
".got")->output_section->vma;
|
value += addend;
|
value += addend;
|
|
|
bfd_put_32 (input_bfd, value, hit_data);
|
bfd_put_32 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_GOTOFF24:
|
case R_MN10300_GOTOFF24:
|
value -= bfd_get_section_by_name (dynobj,
|
value -= bfd_get_section_by_name (dynobj,
|
".got")->output_section->vma;
|
".got")->output_section->vma;
|
value += addend;
|
value += addend;
|
|
|
if ((long) value > 0x7fffff || (long) value < -0x800000)
|
if ((long) value > 0x7fffff || (long) value < -0x800000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_8 (input_bfd, value, hit_data);
|
bfd_put_8 (input_bfd, value, hit_data);
|
bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1);
|
bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1);
|
bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2);
|
bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_GOTOFF16:
|
case R_MN10300_GOTOFF16:
|
value -= bfd_get_section_by_name (dynobj,
|
value -= bfd_get_section_by_name (dynobj,
|
".got")->output_section->vma;
|
".got")->output_section->vma;
|
value += addend;
|
value += addend;
|
|
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
bfd_put_16 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_PLT32:
|
case R_MN10300_PLT32:
|
if (h != NULL
|
if (h != NULL
|
&& ELF_ST_VISIBILITY (h->other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (h->other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (h->other) != STV_HIDDEN
|
&& ELF_ST_VISIBILITY (h->other) != STV_HIDDEN
|
&& h->plt.offset != (bfd_vma) -1)
|
&& h->plt.offset != (bfd_vma) -1)
|
{
|
{
|
asection * splt;
|
asection * splt;
|
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
|
|
value = (splt->output_section->vma
|
value = (splt->output_section->vma
|
+ splt->output_offset
|
+ splt->output_offset
|
+ h->plt.offset) - value;
|
+ h->plt.offset) - value;
|
}
|
}
|
|
|
value -= (input_section->output_section->vma
|
value -= (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
value -= offset;
|
value -= offset;
|
value += addend;
|
value += addend;
|
|
|
bfd_put_32 (input_bfd, value, hit_data);
|
bfd_put_32 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_PLT16:
|
case R_MN10300_PLT16:
|
if (h != NULL
|
if (h != NULL
|
&& ELF_ST_VISIBILITY (h->other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (h->other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (h->other) != STV_HIDDEN
|
&& ELF_ST_VISIBILITY (h->other) != STV_HIDDEN
|
&& h->plt.offset != (bfd_vma) -1)
|
&& h->plt.offset != (bfd_vma) -1)
|
{
|
{
|
asection * splt;
|
asection * splt;
|
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
|
|
value = (splt->output_section->vma
|
value = (splt->output_section->vma
|
+ splt->output_offset
|
+ splt->output_offset
|
+ h->plt.offset) - value;
|
+ h->plt.offset) - value;
|
}
|
}
|
|
|
value -= (input_section->output_section->vma
|
value -= (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
value -= offset;
|
value -= offset;
|
value += addend;
|
value += addend;
|
|
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
bfd_put_16 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_GOT32:
|
case R_MN10300_GOT32:
|
case R_MN10300_GOT24:
|
case R_MN10300_GOT24:
|
case R_MN10300_GOT16:
|
case R_MN10300_GOT16:
|
{
|
{
|
asection * sgot;
|
asection * sgot;
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
|
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
bfd_vma off;
|
bfd_vma off;
|
|
|
off = h->got.offset;
|
off = h->got.offset;
|
BFD_ASSERT (off != (bfd_vma) -1);
|
BFD_ASSERT (off != (bfd_vma) -1);
|
|
|
if (! elf_hash_table (info)->dynamic_sections_created
|
if (! elf_hash_table (info)->dynamic_sections_created
|
|| SYMBOL_REFERENCES_LOCAL (info, h))
|
|| SYMBOL_REFERENCES_LOCAL (info, h))
|
/* This is actually a static link, or it is a
|
/* This is actually a static link, or it is a
|
-Bsymbolic link and the symbol is defined
|
-Bsymbolic link and the symbol is defined
|
locally, or the symbol was forced to be local
|
locally, or the symbol was forced to be local
|
because of a version file. We must initialize
|
because of a version file. We must initialize
|
this entry in the global offset table.
|
this entry in the global offset table.
|
|
|
When doing a dynamic link, we create a .rela.got
|
When doing a dynamic link, we create a .rela.got
|
relocation entry to initialize the value. This
|
relocation entry to initialize the value. This
|
is done in the finish_dynamic_symbol routine. */
|
is done in the finish_dynamic_symbol routine. */
|
bfd_put_32 (output_bfd, value,
|
bfd_put_32 (output_bfd, value,
|
sgot->contents + off);
|
sgot->contents + off);
|
|
|
value = sgot->output_offset + off;
|
value = sgot->output_offset + off;
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_vma off;
|
bfd_vma off;
|
|
|
off = elf_local_got_offsets (input_bfd)[symndx];
|
off = elf_local_got_offsets (input_bfd)[symndx];
|
|
|
bfd_put_32 (output_bfd, value, sgot->contents + off);
|
bfd_put_32 (output_bfd, value, sgot->contents + off);
|
|
|
if (info->shared)
|
if (info->shared)
|
{
|
{
|
asection * srelgot;
|
asection * srelgot;
|
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
|
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
BFD_ASSERT (srelgot != NULL);
|
BFD_ASSERT (srelgot != NULL);
|
|
|
outrel.r_offset = (sgot->output_section->vma
|
outrel.r_offset = (sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ off);
|
+ off);
|
outrel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE);
|
outrel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE);
|
outrel.r_addend = value;
|
outrel.r_addend = value;
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
(bfd_byte *) (((Elf32_External_Rela *)
|
(bfd_byte *) (((Elf32_External_Rela *)
|
srelgot->contents)
|
srelgot->contents)
|
+ srelgot->reloc_count));
|
+ srelgot->reloc_count));
|
++ srelgot->reloc_count;
|
++ srelgot->reloc_count;
|
}
|
}
|
|
|
value = sgot->output_offset + off;
|
value = sgot->output_offset + off;
|
}
|
}
|
}
|
}
|
|
|
value += addend;
|
value += addend;
|
|
|
if (r_type == R_MN10300_GOT32)
|
if (r_type == R_MN10300_GOT32)
|
{
|
{
|
bfd_put_32 (input_bfd, value, hit_data);
|
bfd_put_32 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
}
|
}
|
else if (r_type == R_MN10300_GOT24)
|
else if (r_type == R_MN10300_GOT24)
|
{
|
{
|
if ((long) value > 0x7fffff || (long) value < -0x800000)
|
if ((long) value > 0x7fffff || (long) value < -0x800000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_8 (input_bfd, value & 0xff, hit_data);
|
bfd_put_8 (input_bfd, value & 0xff, hit_data);
|
bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1);
|
bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1);
|
bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2);
|
bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
}
|
}
|
else if (r_type == R_MN10300_GOT16)
|
else if (r_type == R_MN10300_GOT16)
|
{
|
{
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
if ((long) value > 0xffff || (long) value < -0x10000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
bfd_put_16 (input_bfd, value, hit_data);
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
}
|
}
|
/* Fall through. */
|
/* Fall through. */
|
|
|
default:
|
default:
|
return bfd_reloc_notsupported;
|
return bfd_reloc_notsupported;
|
}
|
}
|
}
|
}
|
|
|
/* Relocate an MN10300 ELF section. */
|
/* Relocate an MN10300 ELF section. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
mn10300_elf_relocate_section (bfd *output_bfd,
|
mn10300_elf_relocate_section (bfd *output_bfd,
|
struct bfd_link_info *info,
|
struct bfd_link_info *info,
|
bfd *input_bfd,
|
bfd *input_bfd,
|
asection *input_section,
|
asection *input_section,
|
bfd_byte *contents,
|
bfd_byte *contents,
|
Elf_Internal_Rela *relocs,
|
Elf_Internal_Rela *relocs,
|
Elf_Internal_Sym *local_syms,
|
Elf_Internal_Sym *local_syms,
|
asection **local_sections)
|
asection **local_sections)
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
Elf_Internal_Rela *rel, *relend;
|
Elf_Internal_Rela *rel, *relend;
|
|
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
sym_hashes = elf_sym_hashes (input_bfd);
|
sym_hashes = elf_sym_hashes (input_bfd);
|
|
|
rel = relocs;
|
rel = relocs;
|
relend = relocs + input_section->reloc_count;
|
relend = relocs + input_section->reloc_count;
|
for (; rel < relend; rel++)
|
for (; rel < relend; rel++)
|
{
|
{
|
int r_type;
|
int r_type;
|
reloc_howto_type *howto;
|
reloc_howto_type *howto;
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
Elf_Internal_Sym *sym;
|
Elf_Internal_Sym *sym;
|
asection *sec;
|
asection *sec;
|
struct elf32_mn10300_link_hash_entry *h;
|
struct elf32_mn10300_link_hash_entry *h;
|
bfd_vma relocation;
|
bfd_vma relocation;
|
bfd_reloc_status_type r;
|
bfd_reloc_status_type r;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_type = ELF32_R_TYPE (rel->r_info);
|
r_type = ELF32_R_TYPE (rel->r_info);
|
howto = elf_mn10300_howto_table + r_type;
|
howto = elf_mn10300_howto_table + r_type;
|
|
|
/* Just skip the vtable gc relocs. */
|
/* Just skip the vtable gc relocs. */
|
if (r_type == R_MN10300_GNU_VTINHERIT
|
if (r_type == R_MN10300_GNU_VTINHERIT
|
|| r_type == R_MN10300_GNU_VTENTRY)
|
|| r_type == R_MN10300_GNU_VTENTRY)
|
continue;
|
continue;
|
|
|
h = NULL;
|
h = NULL;
|
sym = NULL;
|
sym = NULL;
|
sec = NULL;
|
sec = NULL;
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
{
|
{
|
sym = local_syms + r_symndx;
|
sym = local_syms + r_symndx;
|
sec = local_sections[r_symndx];
|
sec = local_sections[r_symndx];
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_boolean unresolved_reloc;
|
bfd_boolean unresolved_reloc;
|
bfd_boolean warned;
|
bfd_boolean warned;
|
struct elf_link_hash_entry *hh;
|
struct elf_link_hash_entry *hh;
|
|
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
r_symndx, symtab_hdr, sym_hashes,
|
r_symndx, symtab_hdr, sym_hashes,
|
hh, sec, relocation,
|
hh, sec, relocation,
|
unresolved_reloc, warned);
|
unresolved_reloc, warned);
|
|
|
h = (struct elf32_mn10300_link_hash_entry *) hh;
|
h = (struct elf32_mn10300_link_hash_entry *) hh;
|
|
|
if ((h->root.root.type == bfd_link_hash_defined
|
if ((h->root.root.type == bfd_link_hash_defined
|
|| h->root.root.type == bfd_link_hash_defweak)
|
|| h->root.root.type == bfd_link_hash_defweak)
|
&& ( r_type == R_MN10300_GOTPC32
|
&& ( r_type == R_MN10300_GOTPC32
|
|| r_type == R_MN10300_GOTPC16
|
|| r_type == R_MN10300_GOTPC16
|
|| (( r_type == R_MN10300_PLT32
|
|| (( r_type == R_MN10300_PLT32
|
|| r_type == R_MN10300_PLT16)
|
|| r_type == R_MN10300_PLT16)
|
&& ELF_ST_VISIBILITY (h->root.other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (h->root.other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (h->root.other) != STV_HIDDEN
|
&& ELF_ST_VISIBILITY (h->root.other) != STV_HIDDEN
|
&& h->root.plt.offset != (bfd_vma) -1)
|
&& h->root.plt.offset != (bfd_vma) -1)
|
|| (( r_type == R_MN10300_GOT32
|
|| (( r_type == R_MN10300_GOT32
|
|| r_type == R_MN10300_GOT24
|
|| r_type == R_MN10300_GOT24
|
|| r_type == R_MN10300_GOT16)
|
|| r_type == R_MN10300_GOT16)
|
&& elf_hash_table (info)->dynamic_sections_created
|
&& elf_hash_table (info)->dynamic_sections_created
|
&& !SYMBOL_REFERENCES_LOCAL (info, hh))
|
&& !SYMBOL_REFERENCES_LOCAL (info, hh))
|
|| (r_type == R_MN10300_32
|
|| (r_type == R_MN10300_32
|
/* _32 relocs in executables force _COPY relocs,
|
/* _32 relocs in executables force _COPY relocs,
|
such that the address of the symbol ends up
|
such that the address of the symbol ends up
|
being local. */
|
being local. */
|
&& !info->executable
|
&& !info->executable
|
&& !SYMBOL_REFERENCES_LOCAL (info, hh)
|
&& !SYMBOL_REFERENCES_LOCAL (info, hh)
|
&& ((input_section->flags & SEC_ALLOC) != 0
|
&& ((input_section->flags & SEC_ALLOC) != 0
|
/* DWARF will emit R_MN10300_32 relocations
|
/* DWARF will emit R_MN10300_32 relocations
|
in its sections against symbols defined
|
in its sections against symbols defined
|
externally in shared libraries. We can't
|
externally in shared libraries. We can't
|
do anything with them here. */
|
do anything with them here. */
|
|| ((input_section->flags & SEC_DEBUGGING) != 0
|
|| ((input_section->flags & SEC_DEBUGGING) != 0
|
&& h->root.def_dynamic)))))
|
&& h->root.def_dynamic)))))
|
/* In these cases, we don't need the relocation
|
/* In these cases, we don't need the relocation
|
value. We check specially because in some
|
value. We check specially because in some
|
obscure cases sec->output_section will be NULL. */
|
obscure cases sec->output_section will be NULL. */
|
relocation = 0;
|
relocation = 0;
|
|
|
else if (!info->relocatable && unresolved_reloc)
|
else if (!info->relocatable && unresolved_reloc)
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
|
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
|
input_bfd,
|
input_bfd,
|
input_section,
|
input_section,
|
(long) rel->r_offset,
|
(long) rel->r_offset,
|
howto->name,
|
howto->name,
|
h->root.root.root.string);
|
h->root.root.root.string);
|
}
|
}
|
|
|
if (sec != NULL && elf_discarded_section (sec))
|
if (sec != NULL && elf_discarded_section (sec))
|
{
|
{
|
/* For relocs against symbols from removed linkonce sections,
|
/* For relocs against symbols from removed linkonce sections,
|
or sections discarded by a linker script, we just want the
|
or sections discarded by a linker script, we just want the
|
section contents zeroed. Avoid any special processing. */
|
section contents zeroed. Avoid any special processing. */
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
rel->r_info = 0;
|
rel->r_info = 0;
|
rel->r_addend = 0;
|
rel->r_addend = 0;
|
continue;
|
continue;
|
}
|
}
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
continue;
|
continue;
|
|
|
r = mn10300_elf_final_link_relocate (howto, input_bfd, output_bfd,
|
r = mn10300_elf_final_link_relocate (howto, input_bfd, output_bfd,
|
input_section,
|
input_section,
|
contents, rel->r_offset,
|
contents, rel->r_offset,
|
relocation, rel->r_addend,
|
relocation, rel->r_addend,
|
(struct elf_link_hash_entry *) h,
|
(struct elf_link_hash_entry *) h,
|
r_symndx,
|
r_symndx,
|
info, sec, h == NULL);
|
info, sec, h == NULL);
|
|
|
if (r != bfd_reloc_ok)
|
if (r != bfd_reloc_ok)
|
{
|
{
|
const char *name;
|
const char *name;
|
const char *msg = NULL;
|
const char *msg = NULL;
|
|
|
if (h != NULL)
|
if (h != NULL)
|
name = h->root.root.root.string;
|
name = h->root.root.root.string;
|
else
|
else
|
{
|
{
|
name = (bfd_elf_string_from_elf_section
|
name = (bfd_elf_string_from_elf_section
|
(input_bfd, symtab_hdr->sh_link, sym->st_name));
|
(input_bfd, symtab_hdr->sh_link, sym->st_name));
|
if (name == NULL || *name == '\0')
|
if (name == NULL || *name == '\0')
|
name = bfd_section_name (input_bfd, sec);
|
name = bfd_section_name (input_bfd, sec);
|
}
|
}
|
|
|
switch (r)
|
switch (r)
|
{
|
{
|
case bfd_reloc_overflow:
|
case bfd_reloc_overflow:
|
if (! ((*info->callbacks->reloc_overflow)
|
if (! ((*info->callbacks->reloc_overflow)
|
(info, (h ? &h->root.root : NULL), name,
|
(info, (h ? &h->root.root : NULL), name,
|
howto->name, (bfd_vma) 0, input_bfd,
|
howto->name, (bfd_vma) 0, input_bfd,
|
input_section, rel->r_offset)))
|
input_section, rel->r_offset)))
|
return FALSE;
|
return FALSE;
|
break;
|
break;
|
|
|
case bfd_reloc_undefined:
|
case bfd_reloc_undefined:
|
if (! ((*info->callbacks->undefined_symbol)
|
if (! ((*info->callbacks->undefined_symbol)
|
(info, name, input_bfd, input_section,
|
(info, name, input_bfd, input_section,
|
rel->r_offset, TRUE)))
|
rel->r_offset, TRUE)))
|
return FALSE;
|
return FALSE;
|
break;
|
break;
|
|
|
case bfd_reloc_outofrange:
|
case bfd_reloc_outofrange:
|
msg = _("internal error: out of range error");
|
msg = _("internal error: out of range error");
|
goto common_error;
|
goto common_error;
|
|
|
case bfd_reloc_notsupported:
|
case bfd_reloc_notsupported:
|
msg = _("internal error: unsupported relocation error");
|
msg = _("internal error: unsupported relocation error");
|
goto common_error;
|
goto common_error;
|
|
|
case bfd_reloc_dangerous:
|
case bfd_reloc_dangerous:
|
if (r_type == R_MN10300_PCREL32)
|
if (r_type == R_MN10300_PCREL32)
|
msg = _("error: inappropriate relocation type for shared"
|
msg = _("error: inappropriate relocation type for shared"
|
" library (did you forget -fpic?)");
|
" library (did you forget -fpic?)");
|
else
|
else
|
msg = _("internal error: suspicious relocation type used"
|
msg = _("internal error: suspicious relocation type used"
|
" in shared library");
|
" in shared library");
|
goto common_error;
|
goto common_error;
|
|
|
default:
|
default:
|
msg = _("internal error: unknown error");
|
msg = _("internal error: unknown error");
|
/* Fall through. */
|
/* Fall through. */
|
|
|
common_error:
|
common_error:
|
if (!((*info->callbacks->warning)
|
if (!((*info->callbacks->warning)
|
(info, msg, name, input_bfd, input_section,
|
(info, msg, name, input_bfd, input_section,
|
rel->r_offset)))
|
rel->r_offset)))
|
return FALSE;
|
return FALSE;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Finish initializing one hash table entry. */
|
/* Finish initializing one hash table entry. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf32_mn10300_finish_hash_table_entry (struct bfd_hash_entry *gen_entry,
|
elf32_mn10300_finish_hash_table_entry (struct bfd_hash_entry *gen_entry,
|
void * in_args)
|
void * in_args)
|
{
|
{
|
struct elf32_mn10300_link_hash_entry *entry;
|
struct elf32_mn10300_link_hash_entry *entry;
|
struct bfd_link_info *link_info = (struct bfd_link_info *) in_args;
|
struct bfd_link_info *link_info = (struct bfd_link_info *) in_args;
|
unsigned int byte_count = 0;
|
unsigned int byte_count = 0;
|
|
|
entry = (struct elf32_mn10300_link_hash_entry *) gen_entry;
|
entry = (struct elf32_mn10300_link_hash_entry *) gen_entry;
|
|
|
if (entry->root.root.type == bfd_link_hash_warning)
|
if (entry->root.root.type == bfd_link_hash_warning)
|
entry = (struct elf32_mn10300_link_hash_entry *) entry->root.root.u.i.link;
|
entry = (struct elf32_mn10300_link_hash_entry *) entry->root.root.u.i.link;
|
|
|
/* If we already know we want to convert "call" to "calls" for calls
|
/* If we already know we want to convert "call" to "calls" for calls
|
to this symbol, then return now. */
|
to this symbol, then return now. */
|
if (entry->flags == MN10300_CONVERT_CALL_TO_CALLS)
|
if (entry->flags == MN10300_CONVERT_CALL_TO_CALLS)
|
return TRUE;
|
return TRUE;
|
|
|
/* If there are no named calls to this symbol, or there's nothing we
|
/* If there are no named calls to this symbol, or there's nothing we
|
can move from the function itself into the "call" instruction,
|
can move from the function itself into the "call" instruction,
|
then note that all "call" instructions should be converted into
|
then note that all "call" instructions should be converted into
|
"calls" instructions and return. If a symbol is available for
|
"calls" instructions and return. If a symbol is available for
|
dynamic symbol resolution (overridable or overriding), avoid
|
dynamic symbol resolution (overridable or overriding), avoid
|
custom calling conventions. */
|
custom calling conventions. */
|
if (entry->direct_calls == 0
|
if (entry->direct_calls == 0
|
|| (entry->stack_size == 0 && entry->movm_args == 0)
|
|| (entry->stack_size == 0 && entry->movm_args == 0)
|
|| (elf_hash_table (link_info)->dynamic_sections_created
|
|| (elf_hash_table (link_info)->dynamic_sections_created
|
&& ELF_ST_VISIBILITY (entry->root.other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (entry->root.other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (entry->root.other) != STV_HIDDEN))
|
&& ELF_ST_VISIBILITY (entry->root.other) != STV_HIDDEN))
|
{
|
{
|
/* Make a note that we should convert "call" instructions to "calls"
|
/* Make a note that we should convert "call" instructions to "calls"
|
instructions for calls to this symbol. */
|
instructions for calls to this symbol. */
|
entry->flags |= MN10300_CONVERT_CALL_TO_CALLS;
|
entry->flags |= MN10300_CONVERT_CALL_TO_CALLS;
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* We may be able to move some instructions from the function itself into
|
/* We may be able to move some instructions from the function itself into
|
the "call" instruction. Count how many bytes we might be able to
|
the "call" instruction. Count how many bytes we might be able to
|
eliminate in the function itself. */
|
eliminate in the function itself. */
|
|
|
/* A movm instruction is two bytes. */
|
/* A movm instruction is two bytes. */
|
if (entry->movm_args)
|
if (entry->movm_args)
|
byte_count += 2;
|
byte_count += 2;
|
|
|
/* Count the insn to allocate stack space too. */
|
/* Count the insn to allocate stack space too. */
|
if (entry->stack_size > 0)
|
if (entry->stack_size > 0)
|
{
|
{
|
if (entry->stack_size <= 128)
|
if (entry->stack_size <= 128)
|
byte_count += 3;
|
byte_count += 3;
|
else
|
else
|
byte_count += 4;
|
byte_count += 4;
|
}
|
}
|
|
|
/* If using "call" will result in larger code, then turn all
|
/* If using "call" will result in larger code, then turn all
|
the associated "call" instructions into "calls" instructions. */
|
the associated "call" instructions into "calls" instructions. */
|
if (byte_count < entry->direct_calls)
|
if (byte_count < entry->direct_calls)
|
entry->flags |= MN10300_CONVERT_CALL_TO_CALLS;
|
entry->flags |= MN10300_CONVERT_CALL_TO_CALLS;
|
|
|
/* This routine never fails. */
|
/* This routine never fails. */
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Used to count hash table entries. */
|
/* Used to count hash table entries. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf32_mn10300_count_hash_table_entries (struct bfd_hash_entry *gen_entry ATTRIBUTE_UNUSED,
|
elf32_mn10300_count_hash_table_entries (struct bfd_hash_entry *gen_entry ATTRIBUTE_UNUSED,
|
void * in_args)
|
void * in_args)
|
{
|
{
|
int *count = (int *) in_args;
|
int *count = (int *) in_args;
|
|
|
(*count) ++;
|
(*count) ++;
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Used to enumerate hash table entries into a linear array. */
|
/* Used to enumerate hash table entries into a linear array. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf32_mn10300_list_hash_table_entries (struct bfd_hash_entry *gen_entry,
|
elf32_mn10300_list_hash_table_entries (struct bfd_hash_entry *gen_entry,
|
void * in_args)
|
void * in_args)
|
{
|
{
|
struct bfd_hash_entry ***ptr = (struct bfd_hash_entry ***) in_args;
|
struct bfd_hash_entry ***ptr = (struct bfd_hash_entry ***) in_args;
|
|
|
**ptr = gen_entry;
|
**ptr = gen_entry;
|
(*ptr) ++;
|
(*ptr) ++;
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Used to sort the array created by the above. */
|
/* Used to sort the array created by the above. */
|
|
|
static int
|
static int
|
sort_by_value (const void *va, const void *vb)
|
sort_by_value (const void *va, const void *vb)
|
{
|
{
|
struct elf32_mn10300_link_hash_entry *a
|
struct elf32_mn10300_link_hash_entry *a
|
= *(struct elf32_mn10300_link_hash_entry **) va;
|
= *(struct elf32_mn10300_link_hash_entry **) va;
|
struct elf32_mn10300_link_hash_entry *b
|
struct elf32_mn10300_link_hash_entry *b
|
= *(struct elf32_mn10300_link_hash_entry **) vb;
|
= *(struct elf32_mn10300_link_hash_entry **) vb;
|
|
|
return a->value - b->value;
|
return a->value - b->value;
|
}
|
}
|
|
|
/* Compute the stack size and movm arguments for the function
|
/* Compute the stack size and movm arguments for the function
|
referred to by HASH at address ADDR in section with
|
referred to by HASH at address ADDR in section with
|
contents CONTENTS, store the information in the hash table. */
|
contents CONTENTS, store the information in the hash table. */
|
|
|
static void
|
static void
|
compute_function_info (bfd *abfd,
|
compute_function_info (bfd *abfd,
|
struct elf32_mn10300_link_hash_entry *hash,
|
struct elf32_mn10300_link_hash_entry *hash,
|
bfd_vma addr,
|
bfd_vma addr,
|
unsigned char *contents)
|
unsigned char *contents)
|
{
|
{
|
unsigned char byte1, byte2;
|
unsigned char byte1, byte2;
|
/* We only care about a very small subset of the possible prologue
|
/* We only care about a very small subset of the possible prologue
|
sequences here. Basically we look for:
|
sequences here. Basically we look for:
|
|
|
movm [d2,d3,a2,a3],sp (optional)
|
movm [d2,d3,a2,a3],sp (optional)
|
add <size>,sp (optional, and only for sizes which fit in an unsigned
|
add <size>,sp (optional, and only for sizes which fit in an unsigned
|
8 bit number)
|
8 bit number)
|
|
|
If we find anything else, we quit. */
|
If we find anything else, we quit. */
|
|
|
/* Look for movm [regs],sp. */
|
/* Look for movm [regs],sp. */
|
byte1 = bfd_get_8 (abfd, contents + addr);
|
byte1 = bfd_get_8 (abfd, contents + addr);
|
byte2 = bfd_get_8 (abfd, contents + addr + 1);
|
byte2 = bfd_get_8 (abfd, contents + addr + 1);
|
|
|
if (byte1 == 0xcf)
|
if (byte1 == 0xcf)
|
{
|
{
|
hash->movm_args = byte2;
|
hash->movm_args = byte2;
|
addr += 2;
|
addr += 2;
|
byte1 = bfd_get_8 (abfd, contents + addr);
|
byte1 = bfd_get_8 (abfd, contents + addr);
|
byte2 = bfd_get_8 (abfd, contents + addr + 1);
|
byte2 = bfd_get_8 (abfd, contents + addr + 1);
|
}
|
}
|
|
|
/* Now figure out how much stack space will be allocated by the movm
|
/* Now figure out how much stack space will be allocated by the movm
|
instruction. We need this kept separate from the function's normal
|
instruction. We need this kept separate from the function's normal
|
stack space. */
|
stack space. */
|
if (hash->movm_args)
|
if (hash->movm_args)
|
{
|
{
|
/* Space for d2. */
|
/* Space for d2. */
|
if (hash->movm_args & 0x80)
|
if (hash->movm_args & 0x80)
|
hash->movm_stack_size += 4;
|
hash->movm_stack_size += 4;
|
|
|
/* Space for d3. */
|
/* Space for d3. */
|
if (hash->movm_args & 0x40)
|
if (hash->movm_args & 0x40)
|
hash->movm_stack_size += 4;
|
hash->movm_stack_size += 4;
|
|
|
/* Space for a2. */
|
/* Space for a2. */
|
if (hash->movm_args & 0x20)
|
if (hash->movm_args & 0x20)
|
hash->movm_stack_size += 4;
|
hash->movm_stack_size += 4;
|
|
|
/* Space for a3. */
|
/* Space for a3. */
|
if (hash->movm_args & 0x10)
|
if (hash->movm_args & 0x10)
|
hash->movm_stack_size += 4;
|
hash->movm_stack_size += 4;
|
|
|
/* "other" space. d0, d1, a0, a1, mdr, lir, lar, 4 byte pad. */
|
/* "other" space. d0, d1, a0, a1, mdr, lir, lar, 4 byte pad. */
|
if (hash->movm_args & 0x08)
|
if (hash->movm_args & 0x08)
|
hash->movm_stack_size += 8 * 4;
|
hash->movm_stack_size += 8 * 4;
|
|
|
if (bfd_get_mach (abfd) == bfd_mach_am33
|
if (bfd_get_mach (abfd) == bfd_mach_am33
|
|| bfd_get_mach (abfd) == bfd_mach_am33_2)
|
|| bfd_get_mach (abfd) == bfd_mach_am33_2)
|
{
|
{
|
/* "exother" space. e0, e1, mdrq, mcrh, mcrl, mcvf */
|
/* "exother" space. e0, e1, mdrq, mcrh, mcrl, mcvf */
|
if (hash->movm_args & 0x1)
|
if (hash->movm_args & 0x1)
|
hash->movm_stack_size += 6 * 4;
|
hash->movm_stack_size += 6 * 4;
|
|
|
/* exreg1 space. e4, e5, e6, e7 */
|
/* exreg1 space. e4, e5, e6, e7 */
|
if (hash->movm_args & 0x2)
|
if (hash->movm_args & 0x2)
|
hash->movm_stack_size += 4 * 4;
|
hash->movm_stack_size += 4 * 4;
|
|
|
/* exreg0 space. e2, e3 */
|
/* exreg0 space. e2, e3 */
|
if (hash->movm_args & 0x4)
|
if (hash->movm_args & 0x4)
|
hash->movm_stack_size += 2 * 4;
|
hash->movm_stack_size += 2 * 4;
|
}
|
}
|
}
|
}
|
|
|
/* Now look for the two stack adjustment variants. */
|
/* Now look for the two stack adjustment variants. */
|
if (byte1 == 0xf8 && byte2 == 0xfe)
|
if (byte1 == 0xf8 && byte2 == 0xfe)
|
{
|
{
|
int temp = bfd_get_8 (abfd, contents + addr + 2);
|
int temp = bfd_get_8 (abfd, contents + addr + 2);
|
temp = ((temp & 0xff) ^ (~0x7f)) + 0x80;
|
temp = ((temp & 0xff) ^ (~0x7f)) + 0x80;
|
|
|
hash->stack_size = -temp;
|
hash->stack_size = -temp;
|
}
|
}
|
else if (byte1 == 0xfa && byte2 == 0xfe)
|
else if (byte1 == 0xfa && byte2 == 0xfe)
|
{
|
{
|
int temp = bfd_get_16 (abfd, contents + addr + 2);
|
int temp = bfd_get_16 (abfd, contents + addr + 2);
|
temp = ((temp & 0xffff) ^ (~0x7fff)) + 0x8000;
|
temp = ((temp & 0xffff) ^ (~0x7fff)) + 0x8000;
|
temp = -temp;
|
temp = -temp;
|
|
|
if (temp < 255)
|
if (temp < 255)
|
hash->stack_size = temp;
|
hash->stack_size = temp;
|
}
|
}
|
|
|
/* If the total stack to be allocated by the call instruction is more
|
/* If the total stack to be allocated by the call instruction is more
|
than 255 bytes, then we can't remove the stack adjustment by using
|
than 255 bytes, then we can't remove the stack adjustment by using
|
"call" (we might still be able to remove the "movm" instruction. */
|
"call" (we might still be able to remove the "movm" instruction. */
|
if (hash->stack_size + hash->movm_stack_size > 255)
|
if (hash->stack_size + hash->movm_stack_size > 255)
|
hash->stack_size = 0;
|
hash->stack_size = 0;
|
}
|
}
|
|
|
/* Delete some bytes from a section while relaxing. */
|
/* Delete some bytes from a section while relaxing. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
mn10300_elf_relax_delete_bytes (bfd *abfd,
|
mn10300_elf_relax_delete_bytes (bfd *abfd,
|
asection *sec,
|
asection *sec,
|
bfd_vma addr,
|
bfd_vma addr,
|
int count)
|
int count)
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
unsigned int sec_shndx;
|
unsigned int sec_shndx;
|
bfd_byte *contents;
|
bfd_byte *contents;
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irelalign;
|
Elf_Internal_Rela *irelalign;
|
bfd_vma toaddr;
|
bfd_vma toaddr;
|
Elf_Internal_Sym *isym, *isymend;
|
Elf_Internal_Sym *isym, *isymend;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **end_hashes;
|
struct elf_link_hash_entry **end_hashes;
|
unsigned int symcount;
|
unsigned int symcount;
|
|
|
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
|
|
contents = elf_section_data (sec)->this_hdr.contents;
|
contents = elf_section_data (sec)->this_hdr.contents;
|
|
|
irelalign = NULL;
|
irelalign = NULL;
|
toaddr = sec->size;
|
toaddr = sec->size;
|
|
|
irel = elf_section_data (sec)->relocs;
|
irel = elf_section_data (sec)->relocs;
|
irelend = irel + sec->reloc_count;
|
irelend = irel + sec->reloc_count;
|
|
|
if (sec->reloc_count > 0)
|
if (sec->reloc_count > 0)
|
{
|
{
|
/* If there is an align reloc at the end of the section ignore it.
|
/* If there is an align reloc at the end of the section ignore it.
|
GAS creates these relocs for reasons of its own, and they just
|
GAS creates these relocs for reasons of its own, and they just
|
serve to keep the section artifically inflated. */
|
serve to keep the section artifically inflated. */
|
if (ELF32_R_TYPE ((irelend - 1)->r_info) == (int) R_MN10300_ALIGN)
|
if (ELF32_R_TYPE ((irelend - 1)->r_info) == (int) R_MN10300_ALIGN)
|
--irelend;
|
--irelend;
|
|
|
/* The deletion must stop at the next ALIGN reloc for an aligment
|
/* The deletion must stop at the next ALIGN reloc for an aligment
|
power larger than, or not a multiple of, the number of bytes we
|
power larger than, or not a multiple of, the number of bytes we
|
are deleting. */
|
are deleting. */
|
for (; irel < irelend; irel++)
|
for (; irel < irelend; irel++)
|
{
|
{
|
int alignment = 1 << irel->r_addend;
|
int alignment = 1 << irel->r_addend;
|
|
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN
|
&& irel->r_offset > addr
|
&& irel->r_offset > addr
|
&& irel->r_offset < toaddr
|
&& irel->r_offset < toaddr
|
&& (count < alignment
|
&& (count < alignment
|
|| alignment % count != 0))
|
|| alignment % count != 0))
|
{
|
{
|
irelalign = irel;
|
irelalign = irel;
|
toaddr = irel->r_offset;
|
toaddr = irel->r_offset;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Actually delete the bytes. */
|
/* Actually delete the bytes. */
|
memmove (contents + addr, contents + addr + count,
|
memmove (contents + addr, contents + addr + count,
|
(size_t) (toaddr - addr - count));
|
(size_t) (toaddr - addr - count));
|
|
|
/* Adjust the section's size if we are shrinking it, or else
|
/* Adjust the section's size if we are shrinking it, or else
|
pad the bytes between the end of the shrunken region and
|
pad the bytes between the end of the shrunken region and
|
the start of the next region with NOP codes. */
|
the start of the next region with NOP codes. */
|
if (irelalign == NULL)
|
if (irelalign == NULL)
|
{
|
{
|
sec->size -= count;
|
sec->size -= count;
|
/* Include symbols at the end of the section, but
|
/* Include symbols at the end of the section, but
|
not at the end of a sub-region of the section. */
|
not at the end of a sub-region of the section. */
|
toaddr ++;
|
toaddr ++;
|
}
|
}
|
else
|
else
|
{
|
{
|
int i;
|
int i;
|
|
|
#define NOP_OPCODE 0xcb
|
#define NOP_OPCODE 0xcb
|
|
|
for (i = 0; i < count; i ++)
|
for (i = 0; i < count; i ++)
|
bfd_put_8 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
|
bfd_put_8 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
|
}
|
}
|
|
|
/* Adjust all the relocs. */
|
/* Adjust all the relocs. */
|
for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
|
for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
|
{
|
{
|
/* Get the new reloc address. */
|
/* Get the new reloc address. */
|
if ((irel->r_offset > addr
|
if ((irel->r_offset > addr
|
&& irel->r_offset < toaddr)
|
&& irel->r_offset < toaddr)
|
|| (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN
|
|| (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN
|
&& irel->r_offset == toaddr))
|
&& irel->r_offset == toaddr))
|
irel->r_offset -= count;
|
irel->r_offset -= count;
|
}
|
}
|
|
|
/* Adjust the local symbols in the section, reducing their value
|
/* Adjust the local symbols in the section, reducing their value
|
by the number of bytes deleted. Note - symbols within the deleted
|
by the number of bytes deleted. Note - symbols within the deleted
|
region are moved to the address of the start of the region, which
|
region are moved to the address of the start of the region, which
|
actually means that they will address the byte beyond the end of
|
actually means that they will address the byte beyond the end of
|
the region once the deletion has been completed. */
|
the region once the deletion has been completed. */
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
isym = (Elf_Internal_Sym *) symtab_hdr->contents;
|
isym = (Elf_Internal_Sym *) symtab_hdr->contents;
|
for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
|
for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
|
{
|
{
|
if (isym->st_shndx == sec_shndx
|
if (isym->st_shndx == sec_shndx
|
&& isym->st_value > addr
|
&& isym->st_value > addr
|
&& isym->st_value < toaddr)
|
&& isym->st_value < toaddr)
|
{
|
{
|
if (isym->st_value < addr + count)
|
if (isym->st_value < addr + count)
|
isym->st_value = addr;
|
isym->st_value = addr;
|
else
|
else
|
isym->st_value -= count;
|
isym->st_value -= count;
|
}
|
}
|
/* Adjust the function symbol's size as well. */
|
/* Adjust the function symbol's size as well. */
|
else if (isym->st_shndx == sec_shndx
|
else if (isym->st_shndx == sec_shndx
|
&& ELF_ST_TYPE (isym->st_info) == STT_FUNC
|
&& ELF_ST_TYPE (isym->st_info) == STT_FUNC
|
&& isym->st_value + isym->st_size > addr
|
&& isym->st_value + isym->st_size > addr
|
&& isym->st_value + isym->st_size < toaddr)
|
&& isym->st_value + isym->st_size < toaddr)
|
isym->st_size -= count;
|
isym->st_size -= count;
|
}
|
}
|
|
|
/* Now adjust the global symbols defined in this section. */
|
/* Now adjust the global symbols defined in this section. */
|
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
- symtab_hdr->sh_info);
|
- symtab_hdr->sh_info);
|
sym_hashes = elf_sym_hashes (abfd);
|
sym_hashes = elf_sym_hashes (abfd);
|
end_hashes = sym_hashes + symcount;
|
end_hashes = sym_hashes + symcount;
|
for (; sym_hashes < end_hashes; sym_hashes++)
|
for (; sym_hashes < end_hashes; sym_hashes++)
|
{
|
{
|
struct elf_link_hash_entry *sym_hash = *sym_hashes;
|
struct elf_link_hash_entry *sym_hash = *sym_hashes;
|
|
|
if ((sym_hash->root.type == bfd_link_hash_defined
|
if ((sym_hash->root.type == bfd_link_hash_defined
|
|| sym_hash->root.type == bfd_link_hash_defweak)
|
|| sym_hash->root.type == bfd_link_hash_defweak)
|
&& sym_hash->root.u.def.section == sec
|
&& sym_hash->root.u.def.section == sec
|
&& sym_hash->root.u.def.value > addr
|
&& sym_hash->root.u.def.value > addr
|
&& sym_hash->root.u.def.value < toaddr)
|
&& sym_hash->root.u.def.value < toaddr)
|
{
|
{
|
if (sym_hash->root.u.def.value < addr + count)
|
if (sym_hash->root.u.def.value < addr + count)
|
sym_hash->root.u.def.value = addr;
|
sym_hash->root.u.def.value = addr;
|
else
|
else
|
sym_hash->root.u.def.value -= count;
|
sym_hash->root.u.def.value -= count;
|
}
|
}
|
/* Adjust the function symbol's size as well. */
|
/* Adjust the function symbol's size as well. */
|
else if (sym_hash->root.type == bfd_link_hash_defined
|
else if (sym_hash->root.type == bfd_link_hash_defined
|
&& sym_hash->root.u.def.section == sec
|
&& sym_hash->root.u.def.section == sec
|
&& sym_hash->type == STT_FUNC
|
&& sym_hash->type == STT_FUNC
|
&& sym_hash->root.u.def.value + sym_hash->size > addr
|
&& sym_hash->root.u.def.value + sym_hash->size > addr
|
&& sym_hash->root.u.def.value + sym_hash->size < toaddr)
|
&& sym_hash->root.u.def.value + sym_hash->size < toaddr)
|
sym_hash->size -= count;
|
sym_hash->size -= count;
|
}
|
}
|
|
|
/* See if we can move the ALIGN reloc forward.
|
/* See if we can move the ALIGN reloc forward.
|
We have adjusted r_offset for it already. */
|
We have adjusted r_offset for it already. */
|
if (irelalign != NULL)
|
if (irelalign != NULL)
|
{
|
{
|
bfd_vma alignto, alignaddr;
|
bfd_vma alignto, alignaddr;
|
|
|
if ((int) irelalign->r_addend > 0)
|
if ((int) irelalign->r_addend > 0)
|
{
|
{
|
/* This is the old address. */
|
/* This is the old address. */
|
alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
|
alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
|
/* This is where the align points to now. */
|
/* This is where the align points to now. */
|
alignaddr = BFD_ALIGN (irelalign->r_offset,
|
alignaddr = BFD_ALIGN (irelalign->r_offset,
|
1 << irelalign->r_addend);
|
1 << irelalign->r_addend);
|
if (alignaddr < alignto)
|
if (alignaddr < alignto)
|
/* Tail recursion. */
|
/* Tail recursion. */
|
return mn10300_elf_relax_delete_bytes (abfd, sec, alignaddr,
|
return mn10300_elf_relax_delete_bytes (abfd, sec, alignaddr,
|
(int) (alignto - alignaddr));
|
(int) (alignto - alignaddr));
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Return TRUE if a symbol exists at the given address, else return
|
/* Return TRUE if a symbol exists at the given address, else return
|
FALSE. */
|
FALSE. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
mn10300_elf_symbol_address_p (bfd *abfd,
|
mn10300_elf_symbol_address_p (bfd *abfd,
|
asection *sec,
|
asection *sec,
|
Elf_Internal_Sym *isym,
|
Elf_Internal_Sym *isym,
|
bfd_vma addr)
|
bfd_vma addr)
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
unsigned int sec_shndx;
|
unsigned int sec_shndx;
|
Elf_Internal_Sym *isymend;
|
Elf_Internal_Sym *isymend;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **end_hashes;
|
struct elf_link_hash_entry **end_hashes;
|
unsigned int symcount;
|
unsigned int symcount;
|
|
|
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
|
|
/* Examine all the symbols. */
|
/* Examine all the symbols. */
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
|
for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
|
if (isym->st_shndx == sec_shndx
|
if (isym->st_shndx == sec_shndx
|
&& isym->st_value == addr)
|
&& isym->st_value == addr)
|
return TRUE;
|
return TRUE;
|
|
|
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
- symtab_hdr->sh_info);
|
- symtab_hdr->sh_info);
|
sym_hashes = elf_sym_hashes (abfd);
|
sym_hashes = elf_sym_hashes (abfd);
|
end_hashes = sym_hashes + symcount;
|
end_hashes = sym_hashes + symcount;
|
for (; sym_hashes < end_hashes; sym_hashes++)
|
for (; sym_hashes < end_hashes; sym_hashes++)
|
{
|
{
|
struct elf_link_hash_entry *sym_hash = *sym_hashes;
|
struct elf_link_hash_entry *sym_hash = *sym_hashes;
|
|
|
if ((sym_hash->root.type == bfd_link_hash_defined
|
if ((sym_hash->root.type == bfd_link_hash_defined
|
|| sym_hash->root.type == bfd_link_hash_defweak)
|
|| sym_hash->root.type == bfd_link_hash_defweak)
|
&& sym_hash->root.u.def.section == sec
|
&& sym_hash->root.u.def.section == sec
|
&& sym_hash->root.u.def.value == addr)
|
&& sym_hash->root.u.def.value == addr)
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* This function handles relaxing for the mn10300.
|
/* This function handles relaxing for the mn10300.
|
|
|
There are quite a few relaxing opportunities available on the mn10300:
|
There are quite a few relaxing opportunities available on the mn10300:
|
|
|
* calls:32 -> calls:16 2 bytes
|
* calls:32 -> calls:16 2 bytes
|
* call:32 -> call:16 2 bytes
|
* call:32 -> call:16 2 bytes
|
|
|
* call:32 -> calls:32 1 byte
|
* call:32 -> calls:32 1 byte
|
* call:16 -> calls:16 1 byte
|
* call:16 -> calls:16 1 byte
|
* These are done anytime using "calls" would result
|
* These are done anytime using "calls" would result
|
in smaller code, or when necessary to preserve the
|
in smaller code, or when necessary to preserve the
|
meaning of the program.
|
meaning of the program.
|
|
|
* call:32 varies
|
* call:32 varies
|
* call:16
|
* call:16
|
* In some circumstances we can move instructions
|
* In some circumstances we can move instructions
|
from a function prologue into a "call" instruction.
|
from a function prologue into a "call" instruction.
|
This is only done if the resulting code is no larger
|
This is only done if the resulting code is no larger
|
than the original code.
|
than the original code.
|
|
|
* jmp:32 -> jmp:16 2 bytes
|
* jmp:32 -> jmp:16 2 bytes
|
* jmp:16 -> bra:8 1 byte
|
* jmp:16 -> bra:8 1 byte
|
|
|
* If the previous instruction is a conditional branch
|
* If the previous instruction is a conditional branch
|
around the jump/bra, we may be able to reverse its condition
|
around the jump/bra, we may be able to reverse its condition
|
and change its target to the jump's target. The jump/bra
|
and change its target to the jump's target. The jump/bra
|
can then be deleted. 2 bytes
|
can then be deleted. 2 bytes
|
|
|
* mov abs32 -> mov abs16 1 or 2 bytes
|
* mov abs32 -> mov abs16 1 or 2 bytes
|
|
|
* Most instructions which accept imm32 can relax to imm16 1 or 2 bytes
|
* Most instructions which accept imm32 can relax to imm16 1 or 2 bytes
|
- Most instructions which accept imm16 can relax to imm8 1 or 2 bytes
|
- Most instructions which accept imm16 can relax to imm8 1 or 2 bytes
|
|
|
* Most instructions which accept d32 can relax to d16 1 or 2 bytes
|
* Most instructions which accept d32 can relax to d16 1 or 2 bytes
|
- Most instructions which accept d16 can relax to d8 1 or 2 bytes
|
- Most instructions which accept d16 can relax to d8 1 or 2 bytes
|
|
|
We don't handle imm16->imm8 or d16->d8 as they're very rare
|
We don't handle imm16->imm8 or d16->d8 as they're very rare
|
and somewhat more difficult to support. */
|
and somewhat more difficult to support. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
mn10300_elf_relax_section (bfd *abfd,
|
mn10300_elf_relax_section (bfd *abfd,
|
asection *sec,
|
asection *sec,
|
struct bfd_link_info *link_info,
|
struct bfd_link_info *link_info,
|
bfd_boolean *again)
|
bfd_boolean *again)
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Rela *internal_relocs = NULL;
|
Elf_Internal_Rela *internal_relocs = NULL;
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irel, *irelend;
|
bfd_byte *contents = NULL;
|
bfd_byte *contents = NULL;
|
Elf_Internal_Sym *isymbuf = NULL;
|
Elf_Internal_Sym *isymbuf = NULL;
|
struct elf32_mn10300_link_hash_table *hash_table;
|
struct elf32_mn10300_link_hash_table *hash_table;
|
asection *section = sec;
|
asection *section = sec;
|
bfd_vma align_gap_adjustment;
|
bfd_vma align_gap_adjustment;
|
|
|
/* Assume nothing changes. */
|
/* Assume nothing changes. */
|
*again = FALSE;
|
*again = FALSE;
|
|
|
/* We need a pointer to the mn10300 specific hash table. */
|
/* We need a pointer to the mn10300 specific hash table. */
|
hash_table = elf32_mn10300_hash_table (link_info);
|
hash_table = elf32_mn10300_hash_table (link_info);
|
|
|
/* Initialize fields in each hash table entry the first time through. */
|
/* Initialize fields in each hash table entry the first time through. */
|
if ((hash_table->flags & MN10300_HASH_ENTRIES_INITIALIZED) == 0)
|
if ((hash_table->flags & MN10300_HASH_ENTRIES_INITIALIZED) == 0)
|
{
|
{
|
bfd *input_bfd;
|
bfd *input_bfd;
|
|
|
/* Iterate over all the input bfds. */
|
/* Iterate over all the input bfds. */
|
for (input_bfd = link_info->input_bfds;
|
for (input_bfd = link_info->input_bfds;
|
input_bfd != NULL;
|
input_bfd != NULL;
|
input_bfd = input_bfd->link_next)
|
input_bfd = input_bfd->link_next)
|
{
|
{
|
/* We're going to need all the symbols for each bfd. */
|
/* We're going to need all the symbols for each bfd. */
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
if (symtab_hdr->sh_info != 0)
|
if (symtab_hdr->sh_info != 0)
|
{
|
{
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
|
isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
|
symtab_hdr->sh_info, 0,
|
symtab_hdr->sh_info, 0,
|
NULL, NULL, NULL);
|
NULL, NULL, NULL);
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
/* Iterate over each section in this bfd. */
|
/* Iterate over each section in this bfd. */
|
for (section = input_bfd->sections;
|
for (section = input_bfd->sections;
|
section != NULL;
|
section != NULL;
|
section = section->next)
|
section = section->next)
|
{
|
{
|
struct elf32_mn10300_link_hash_entry *hash;
|
struct elf32_mn10300_link_hash_entry *hash;
|
Elf_Internal_Sym *sym;
|
Elf_Internal_Sym *sym;
|
asection *sym_sec = NULL;
|
asection *sym_sec = NULL;
|
const char *sym_name;
|
const char *sym_name;
|
char *new_name;
|
char *new_name;
|
|
|
/* If there's nothing to do in this section, skip it. */
|
/* If there's nothing to do in this section, skip it. */
|
if (! ((section->flags & SEC_RELOC) != 0
|
if (! ((section->flags & SEC_RELOC) != 0
|
&& section->reloc_count != 0))
|
&& section->reloc_count != 0))
|
continue;
|
continue;
|
if ((section->flags & SEC_ALLOC) == 0)
|
if ((section->flags & SEC_ALLOC) == 0)
|
continue;
|
continue;
|
|
|
/* Get cached copy of section contents if it exists. */
|
/* Get cached copy of section contents if it exists. */
|
if (elf_section_data (section)->this_hdr.contents != NULL)
|
if (elf_section_data (section)->this_hdr.contents != NULL)
|
contents = elf_section_data (section)->this_hdr.contents;
|
contents = elf_section_data (section)->this_hdr.contents;
|
else if (section->size != 0)
|
else if (section->size != 0)
|
{
|
{
|
/* Go get them off disk. */
|
/* Go get them off disk. */
|
if (!bfd_malloc_and_get_section (input_bfd, section,
|
if (!bfd_malloc_and_get_section (input_bfd, section,
|
&contents))
|
&contents))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
else
|
else
|
contents = NULL;
|
contents = NULL;
|
|
|
/* If there aren't any relocs, then there's nothing to do. */
|
/* If there aren't any relocs, then there's nothing to do. */
|
if ((section->flags & SEC_RELOC) != 0
|
if ((section->flags & SEC_RELOC) != 0
|
&& section->reloc_count != 0)
|
&& section->reloc_count != 0)
|
{
|
{
|
/* Get a copy of the native relocations. */
|
/* Get a copy of the native relocations. */
|
internal_relocs = _bfd_elf_link_read_relocs (input_bfd, section,
|
internal_relocs = _bfd_elf_link_read_relocs (input_bfd, section,
|
NULL, NULL,
|
NULL, NULL,
|
link_info->keep_memory);
|
link_info->keep_memory);
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
|
|
/* Now examine each relocation. */
|
/* Now examine each relocation. */
|
irel = internal_relocs;
|
irel = internal_relocs;
|
irelend = irel + section->reloc_count;
|
irelend = irel + section->reloc_count;
|
for (; irel < irelend; irel++)
|
for (; irel < irelend; irel++)
|
{
|
{
|
long r_type;
|
long r_type;
|
unsigned long r_index;
|
unsigned long r_index;
|
unsigned char code;
|
unsigned char code;
|
|
|
r_type = ELF32_R_TYPE (irel->r_info);
|
r_type = ELF32_R_TYPE (irel->r_info);
|
r_index = ELF32_R_SYM (irel->r_info);
|
r_index = ELF32_R_SYM (irel->r_info);
|
|
|
if (r_type < 0 || r_type >= (int) R_MN10300_MAX)
|
if (r_type < 0 || r_type >= (int) R_MN10300_MAX)
|
goto error_return;
|
goto error_return;
|
|
|
/* We need the name and hash table entry of the target
|
/* We need the name and hash table entry of the target
|
symbol! */
|
symbol! */
|
hash = NULL;
|
hash = NULL;
|
sym = NULL;
|
sym = NULL;
|
sym_sec = NULL;
|
sym_sec = NULL;
|
|
|
if (r_index < symtab_hdr->sh_info)
|
if (r_index < symtab_hdr->sh_info)
|
{
|
{
|
/* A local symbol. */
|
/* A local symbol. */
|
Elf_Internal_Sym *isym;
|
Elf_Internal_Sym *isym;
|
struct elf_link_hash_table *elftab;
|
struct elf_link_hash_table *elftab;
|
bfd_size_type amt;
|
bfd_size_type amt;
|
|
|
isym = isymbuf + r_index;
|
isym = isymbuf + r_index;
|
if (isym->st_shndx == SHN_UNDEF)
|
if (isym->st_shndx == SHN_UNDEF)
|
sym_sec = bfd_und_section_ptr;
|
sym_sec = bfd_und_section_ptr;
|
else if (isym->st_shndx == SHN_ABS)
|
else if (isym->st_shndx == SHN_ABS)
|
sym_sec = bfd_abs_section_ptr;
|
sym_sec = bfd_abs_section_ptr;
|
else if (isym->st_shndx == SHN_COMMON)
|
else if (isym->st_shndx == SHN_COMMON)
|
sym_sec = bfd_com_section_ptr;
|
sym_sec = bfd_com_section_ptr;
|
else
|
else
|
sym_sec
|
sym_sec
|
= bfd_section_from_elf_index (input_bfd,
|
= bfd_section_from_elf_index (input_bfd,
|
isym->st_shndx);
|
isym->st_shndx);
|
|
|
sym_name
|
sym_name
|
= bfd_elf_string_from_elf_section (input_bfd,
|
= bfd_elf_string_from_elf_section (input_bfd,
|
(symtab_hdr
|
(symtab_hdr
|
->sh_link),
|
->sh_link),
|
isym->st_name);
|
isym->st_name);
|
|
|
/* If it isn't a function, then we don't care
|
/* If it isn't a function, then we don't care
|
about it. */
|
about it. */
|
if (ELF_ST_TYPE (isym->st_info) != STT_FUNC)
|
if (ELF_ST_TYPE (isym->st_info) != STT_FUNC)
|
continue;
|
continue;
|
|
|
/* Tack on an ID so we can uniquely identify this
|
/* Tack on an ID so we can uniquely identify this
|
local symbol in the global hash table. */
|
local symbol in the global hash table. */
|
amt = strlen (sym_name) + 10;
|
amt = strlen (sym_name) + 10;
|
new_name = bfd_malloc (amt);
|
new_name = bfd_malloc (amt);
|
if (new_name == NULL)
|
if (new_name == NULL)
|
goto error_return;
|
goto error_return;
|
|
|
sprintf (new_name, "%s_%08x", sym_name, sym_sec->id);
|
sprintf (new_name, "%s_%08x", sym_name, sym_sec->id);
|
sym_name = new_name;
|
sym_name = new_name;
|
|
|
elftab = &hash_table->static_hash_table->root;
|
elftab = &hash_table->static_hash_table->root;
|
hash = ((struct elf32_mn10300_link_hash_entry *)
|
hash = ((struct elf32_mn10300_link_hash_entry *)
|
elf_link_hash_lookup (elftab, sym_name,
|
elf_link_hash_lookup (elftab, sym_name,
|
TRUE, TRUE, FALSE));
|
TRUE, TRUE, FALSE));
|
free (new_name);
|
free (new_name);
|
}
|
}
|
else
|
else
|
{
|
{
|
r_index -= symtab_hdr->sh_info;
|
r_index -= symtab_hdr->sh_info;
|
hash = (struct elf32_mn10300_link_hash_entry *)
|
hash = (struct elf32_mn10300_link_hash_entry *)
|
elf_sym_hashes (input_bfd)[r_index];
|
elf_sym_hashes (input_bfd)[r_index];
|
}
|
}
|
|
|
sym_name = hash->root.root.root.string;
|
sym_name = hash->root.root.root.string;
|
if ((section->flags & SEC_CODE) != 0)
|
if ((section->flags & SEC_CODE) != 0)
|
{
|
{
|
/* If this is not a "call" instruction, then we
|
/* If this is not a "call" instruction, then we
|
should convert "call" instructions to "calls"
|
should convert "call" instructions to "calls"
|
instructions. */
|
instructions. */
|
code = bfd_get_8 (input_bfd,
|
code = bfd_get_8 (input_bfd,
|
contents + irel->r_offset - 1);
|
contents + irel->r_offset - 1);
|
if (code != 0xdd && code != 0xcd)
|
if (code != 0xdd && code != 0xcd)
|
hash->flags |= MN10300_CONVERT_CALL_TO_CALLS;
|
hash->flags |= MN10300_CONVERT_CALL_TO_CALLS;
|
}
|
}
|
|
|
/* If this is a jump/call, then bump the
|
/* If this is a jump/call, then bump the
|
direct_calls counter. Else force "call" to
|
direct_calls counter. Else force "call" to
|
"calls" conversions. */
|
"calls" conversions. */
|
if (r_type == R_MN10300_PCREL32
|
if (r_type == R_MN10300_PCREL32
|
|| r_type == R_MN10300_PLT32
|
|| r_type == R_MN10300_PLT32
|
|| r_type == R_MN10300_PLT16
|
|| r_type == R_MN10300_PLT16
|
|| r_type == R_MN10300_PCREL16)
|
|| r_type == R_MN10300_PCREL16)
|
hash->direct_calls++;
|
hash->direct_calls++;
|
else
|
else
|
hash->flags |= MN10300_CONVERT_CALL_TO_CALLS;
|
hash->flags |= MN10300_CONVERT_CALL_TO_CALLS;
|
}
|
}
|
}
|
}
|
|
|
/* Now look at the actual contents to get the stack size,
|
/* Now look at the actual contents to get the stack size,
|
and a list of what registers were saved in the prologue
|
and a list of what registers were saved in the prologue
|
(ie movm_args). */
|
(ie movm_args). */
|
if ((section->flags & SEC_CODE) != 0)
|
if ((section->flags & SEC_CODE) != 0)
|
{
|
{
|
Elf_Internal_Sym *isym, *isymend;
|
Elf_Internal_Sym *isym, *isymend;
|
unsigned int sec_shndx;
|
unsigned int sec_shndx;
|
struct elf_link_hash_entry **hashes;
|
struct elf_link_hash_entry **hashes;
|
struct elf_link_hash_entry **end_hashes;
|
struct elf_link_hash_entry **end_hashes;
|
unsigned int symcount;
|
unsigned int symcount;
|
|
|
sec_shndx = _bfd_elf_section_from_bfd_section (input_bfd,
|
sec_shndx = _bfd_elf_section_from_bfd_section (input_bfd,
|
section);
|
section);
|
|
|
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
- symtab_hdr->sh_info);
|
- symtab_hdr->sh_info);
|
hashes = elf_sym_hashes (input_bfd);
|
hashes = elf_sym_hashes (input_bfd);
|
end_hashes = hashes + symcount;
|
end_hashes = hashes + symcount;
|
|
|
/* Look at each function defined in this section and
|
/* Look at each function defined in this section and
|
update info for that function. */
|
update info for that function. */
|
isymend = isymbuf + symtab_hdr->sh_info;
|
isymend = isymbuf + symtab_hdr->sh_info;
|
for (isym = isymbuf; isym < isymend; isym++)
|
for (isym = isymbuf; isym < isymend; isym++)
|
{
|
{
|
if (isym->st_shndx == sec_shndx
|
if (isym->st_shndx == sec_shndx
|
&& ELF_ST_TYPE (isym->st_info) == STT_FUNC)
|
&& ELF_ST_TYPE (isym->st_info) == STT_FUNC)
|
{
|
{
|
struct elf_link_hash_table *elftab;
|
struct elf_link_hash_table *elftab;
|
bfd_size_type amt;
|
bfd_size_type amt;
|
struct elf_link_hash_entry **lhashes = hashes;
|
struct elf_link_hash_entry **lhashes = hashes;
|
|
|
/* Skip a local symbol if it aliases a
|
/* Skip a local symbol if it aliases a
|
global one. */
|
global one. */
|
for (; lhashes < end_hashes; lhashes++)
|
for (; lhashes < end_hashes; lhashes++)
|
{
|
{
|
hash = (struct elf32_mn10300_link_hash_entry *) *lhashes;
|
hash = (struct elf32_mn10300_link_hash_entry *) *lhashes;
|
if ((hash->root.root.type == bfd_link_hash_defined
|
if ((hash->root.root.type == bfd_link_hash_defined
|
|| hash->root.root.type == bfd_link_hash_defweak)
|
|| hash->root.root.type == bfd_link_hash_defweak)
|
&& hash->root.root.u.def.section == section
|
&& hash->root.root.u.def.section == section
|
&& hash->root.type == STT_FUNC
|
&& hash->root.type == STT_FUNC
|
&& hash->root.root.u.def.value == isym->st_value)
|
&& hash->root.root.u.def.value == isym->st_value)
|
break;
|
break;
|
}
|
}
|
if (lhashes != end_hashes)
|
if (lhashes != end_hashes)
|
continue;
|
continue;
|
|
|
if (isym->st_shndx == SHN_UNDEF)
|
if (isym->st_shndx == SHN_UNDEF)
|
sym_sec = bfd_und_section_ptr;
|
sym_sec = bfd_und_section_ptr;
|
else if (isym->st_shndx == SHN_ABS)
|
else if (isym->st_shndx == SHN_ABS)
|
sym_sec = bfd_abs_section_ptr;
|
sym_sec = bfd_abs_section_ptr;
|
else if (isym->st_shndx == SHN_COMMON)
|
else if (isym->st_shndx == SHN_COMMON)
|
sym_sec = bfd_com_section_ptr;
|
sym_sec = bfd_com_section_ptr;
|
else
|
else
|
sym_sec
|
sym_sec
|
= bfd_section_from_elf_index (input_bfd,
|
= bfd_section_from_elf_index (input_bfd,
|
isym->st_shndx);
|
isym->st_shndx);
|
|
|
sym_name = (bfd_elf_string_from_elf_section
|
sym_name = (bfd_elf_string_from_elf_section
|
(input_bfd, symtab_hdr->sh_link,
|
(input_bfd, symtab_hdr->sh_link,
|
isym->st_name));
|
isym->st_name));
|
|
|
/* Tack on an ID so we can uniquely identify this
|
/* Tack on an ID so we can uniquely identify this
|
local symbol in the global hash table. */
|
local symbol in the global hash table. */
|
amt = strlen (sym_name) + 10;
|
amt = strlen (sym_name) + 10;
|
new_name = bfd_malloc (amt);
|
new_name = bfd_malloc (amt);
|
if (new_name == NULL)
|
if (new_name == NULL)
|
goto error_return;
|
goto error_return;
|
|
|
sprintf (new_name, "%s_%08x", sym_name, sym_sec->id);
|
sprintf (new_name, "%s_%08x", sym_name, sym_sec->id);
|
sym_name = new_name;
|
sym_name = new_name;
|
|
|
elftab = &hash_table->static_hash_table->root;
|
elftab = &hash_table->static_hash_table->root;
|
hash = ((struct elf32_mn10300_link_hash_entry *)
|
hash = ((struct elf32_mn10300_link_hash_entry *)
|
elf_link_hash_lookup (elftab, sym_name,
|
elf_link_hash_lookup (elftab, sym_name,
|
TRUE, TRUE, FALSE));
|
TRUE, TRUE, FALSE));
|
free (new_name);
|
free (new_name);
|
compute_function_info (input_bfd, hash,
|
compute_function_info (input_bfd, hash,
|
isym->st_value, contents);
|
isym->st_value, contents);
|
hash->value = isym->st_value;
|
hash->value = isym->st_value;
|
}
|
}
|
}
|
}
|
|
|
for (; hashes < end_hashes; hashes++)
|
for (; hashes < end_hashes; hashes++)
|
{
|
{
|
hash = (struct elf32_mn10300_link_hash_entry *) *hashes;
|
hash = (struct elf32_mn10300_link_hash_entry *) *hashes;
|
if ((hash->root.root.type == bfd_link_hash_defined
|
if ((hash->root.root.type == bfd_link_hash_defined
|
|| hash->root.root.type == bfd_link_hash_defweak)
|
|| hash->root.root.type == bfd_link_hash_defweak)
|
&& hash->root.root.u.def.section == section
|
&& hash->root.root.u.def.section == section
|
&& hash->root.type == STT_FUNC)
|
&& hash->root.type == STT_FUNC)
|
compute_function_info (input_bfd, hash,
|
compute_function_info (input_bfd, hash,
|
(hash)->root.root.u.def.value,
|
(hash)->root.root.u.def.value,
|
contents);
|
contents);
|
}
|
}
|
}
|
}
|
|
|
/* Cache or free any memory we allocated for the relocs. */
|
/* Cache or free any memory we allocated for the relocs. */
|
if (internal_relocs != NULL
|
if (internal_relocs != NULL
|
&& elf_section_data (section)->relocs != internal_relocs)
|
&& elf_section_data (section)->relocs != internal_relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
internal_relocs = NULL;
|
internal_relocs = NULL;
|
|
|
/* Cache or free any memory we allocated for the contents. */
|
/* Cache or free any memory we allocated for the contents. */
|
if (contents != NULL
|
if (contents != NULL
|
&& elf_section_data (section)->this_hdr.contents != contents)
|
&& elf_section_data (section)->this_hdr.contents != contents)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (contents);
|
free (contents);
|
else
|
else
|
{
|
{
|
/* Cache the section contents for elf_link_input_bfd. */
|
/* Cache the section contents for elf_link_input_bfd. */
|
elf_section_data (section)->this_hdr.contents = contents;
|
elf_section_data (section)->this_hdr.contents = contents;
|
}
|
}
|
}
|
}
|
contents = NULL;
|
contents = NULL;
|
}
|
}
|
|
|
/* Cache or free any memory we allocated for the symbols. */
|
/* Cache or free any memory we allocated for the symbols. */
|
if (isymbuf != NULL
|
if (isymbuf != NULL
|
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (isymbuf);
|
free (isymbuf);
|
else
|
else
|
{
|
{
|
/* Cache the symbols for elf_link_input_bfd. */
|
/* Cache the symbols for elf_link_input_bfd. */
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
}
|
}
|
}
|
}
|
isymbuf = NULL;
|
isymbuf = NULL;
|
}
|
}
|
|
|
/* Now iterate on each symbol in the hash table and perform
|
/* Now iterate on each symbol in the hash table and perform
|
the final initialization steps on each. */
|
the final initialization steps on each. */
|
elf32_mn10300_link_hash_traverse (hash_table,
|
elf32_mn10300_link_hash_traverse (hash_table,
|
elf32_mn10300_finish_hash_table_entry,
|
elf32_mn10300_finish_hash_table_entry,
|
link_info);
|
link_info);
|
elf32_mn10300_link_hash_traverse (hash_table->static_hash_table,
|
elf32_mn10300_link_hash_traverse (hash_table->static_hash_table,
|
elf32_mn10300_finish_hash_table_entry,
|
elf32_mn10300_finish_hash_table_entry,
|
link_info);
|
link_info);
|
|
|
{
|
{
|
/* This section of code collects all our local symbols, sorts
|
/* This section of code collects all our local symbols, sorts
|
them by value, and looks for multiple symbols referring to
|
them by value, and looks for multiple symbols referring to
|
the same address. For those symbols, the flags are merged.
|
the same address. For those symbols, the flags are merged.
|
At this point, the only flag that can be set is
|
At this point, the only flag that can be set is
|
MN10300_CONVERT_CALL_TO_CALLS, so we simply OR the flags
|
MN10300_CONVERT_CALL_TO_CALLS, so we simply OR the flags
|
together. */
|
together. */
|
int static_count = 0, i;
|
int static_count = 0, i;
|
struct elf32_mn10300_link_hash_entry **entries;
|
struct elf32_mn10300_link_hash_entry **entries;
|
struct elf32_mn10300_link_hash_entry **ptr;
|
struct elf32_mn10300_link_hash_entry **ptr;
|
|
|
elf32_mn10300_link_hash_traverse (hash_table->static_hash_table,
|
elf32_mn10300_link_hash_traverse (hash_table->static_hash_table,
|
elf32_mn10300_count_hash_table_entries,
|
elf32_mn10300_count_hash_table_entries,
|
&static_count);
|
&static_count);
|
|
|
entries = bfd_malloc (static_count * sizeof (* ptr));
|
entries = bfd_malloc (static_count * sizeof (* ptr));
|
|
|
ptr = entries;
|
ptr = entries;
|
elf32_mn10300_link_hash_traverse (hash_table->static_hash_table,
|
elf32_mn10300_link_hash_traverse (hash_table->static_hash_table,
|
elf32_mn10300_list_hash_table_entries,
|
elf32_mn10300_list_hash_table_entries,
|
& ptr);
|
& ptr);
|
|
|
qsort (entries, static_count, sizeof (entries[0]), sort_by_value);
|
qsort (entries, static_count, sizeof (entries[0]), sort_by_value);
|
|
|
for (i = 0; i < static_count - 1; i++)
|
for (i = 0; i < static_count - 1; i++)
|
if (entries[i]->value && entries[i]->value == entries[i+1]->value)
|
if (entries[i]->value && entries[i]->value == entries[i+1]->value)
|
{
|
{
|
int v = entries[i]->flags;
|
int v = entries[i]->flags;
|
int j;
|
int j;
|
|
|
for (j = i + 1; j < static_count && entries[j]->value == entries[i]->value; j++)
|
for (j = i + 1; j < static_count && entries[j]->value == entries[i]->value; j++)
|
v |= entries[j]->flags;
|
v |= entries[j]->flags;
|
|
|
for (j = i; j < static_count && entries[j]->value == entries[i]->value; j++)
|
for (j = i; j < static_count && entries[j]->value == entries[i]->value; j++)
|
entries[j]->flags = v;
|
entries[j]->flags = v;
|
|
|
i = j - 1;
|
i = j - 1;
|
}
|
}
|
}
|
}
|
|
|
/* All entries in the hash table are fully initialized. */
|
/* All entries in the hash table are fully initialized. */
|
hash_table->flags |= MN10300_HASH_ENTRIES_INITIALIZED;
|
hash_table->flags |= MN10300_HASH_ENTRIES_INITIALIZED;
|
|
|
/* Now that everything has been initialized, go through each
|
/* Now that everything has been initialized, go through each
|
code section and delete any prologue insns which will be
|
code section and delete any prologue insns which will be
|
redundant because their operations will be performed by
|
redundant because their operations will be performed by
|
a "call" instruction. */
|
a "call" instruction. */
|
for (input_bfd = link_info->input_bfds;
|
for (input_bfd = link_info->input_bfds;
|
input_bfd != NULL;
|
input_bfd != NULL;
|
input_bfd = input_bfd->link_next)
|
input_bfd = input_bfd->link_next)
|
{
|
{
|
/* We're going to need all the local symbols for each bfd. */
|
/* We're going to need all the local symbols for each bfd. */
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
if (symtab_hdr->sh_info != 0)
|
if (symtab_hdr->sh_info != 0)
|
{
|
{
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
|
isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
|
symtab_hdr->sh_info, 0,
|
symtab_hdr->sh_info, 0,
|
NULL, NULL, NULL);
|
NULL, NULL, NULL);
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
/* Walk over each section in this bfd. */
|
/* Walk over each section in this bfd. */
|
for (section = input_bfd->sections;
|
for (section = input_bfd->sections;
|
section != NULL;
|
section != NULL;
|
section = section->next)
|
section = section->next)
|
{
|
{
|
unsigned int sec_shndx;
|
unsigned int sec_shndx;
|
Elf_Internal_Sym *isym, *isymend;
|
Elf_Internal_Sym *isym, *isymend;
|
struct elf_link_hash_entry **hashes;
|
struct elf_link_hash_entry **hashes;
|
struct elf_link_hash_entry **end_hashes;
|
struct elf_link_hash_entry **end_hashes;
|
unsigned int symcount;
|
unsigned int symcount;
|
|
|
/* Skip non-code sections and empty sections. */
|
/* Skip non-code sections and empty sections. */
|
if ((section->flags & SEC_CODE) == 0 || section->size == 0)
|
if ((section->flags & SEC_CODE) == 0 || section->size == 0)
|
continue;
|
continue;
|
|
|
if (section->reloc_count != 0)
|
if (section->reloc_count != 0)
|
{
|
{
|
/* Get a copy of the native relocations. */
|
/* Get a copy of the native relocations. */
|
internal_relocs = _bfd_elf_link_read_relocs (input_bfd, section,
|
internal_relocs = _bfd_elf_link_read_relocs (input_bfd, section,
|
NULL, NULL,
|
NULL, NULL,
|
link_info->keep_memory);
|
link_info->keep_memory);
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
/* Get cached copy of section contents if it exists. */
|
/* Get cached copy of section contents if it exists. */
|
if (elf_section_data (section)->this_hdr.contents != NULL)
|
if (elf_section_data (section)->this_hdr.contents != NULL)
|
contents = elf_section_data (section)->this_hdr.contents;
|
contents = elf_section_data (section)->this_hdr.contents;
|
else
|
else
|
{
|
{
|
/* Go get them off disk. */
|
/* Go get them off disk. */
|
if (!bfd_malloc_and_get_section (input_bfd, section,
|
if (!bfd_malloc_and_get_section (input_bfd, section,
|
&contents))
|
&contents))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
sec_shndx = _bfd_elf_section_from_bfd_section (input_bfd,
|
sec_shndx = _bfd_elf_section_from_bfd_section (input_bfd,
|
section);
|
section);
|
|
|
/* Now look for any function in this section which needs
|
/* Now look for any function in this section which needs
|
insns deleted from its prologue. */
|
insns deleted from its prologue. */
|
isymend = isymbuf + symtab_hdr->sh_info;
|
isymend = isymbuf + symtab_hdr->sh_info;
|
for (isym = isymbuf; isym < isymend; isym++)
|
for (isym = isymbuf; isym < isymend; isym++)
|
{
|
{
|
struct elf32_mn10300_link_hash_entry *sym_hash;
|
struct elf32_mn10300_link_hash_entry *sym_hash;
|
asection *sym_sec = NULL;
|
asection *sym_sec = NULL;
|
const char *sym_name;
|
const char *sym_name;
|
char *new_name;
|
char *new_name;
|
struct elf_link_hash_table *elftab;
|
struct elf_link_hash_table *elftab;
|
bfd_size_type amt;
|
bfd_size_type amt;
|
|
|
if (isym->st_shndx != sec_shndx)
|
if (isym->st_shndx != sec_shndx)
|
continue;
|
continue;
|
|
|
if (isym->st_shndx == SHN_UNDEF)
|
if (isym->st_shndx == SHN_UNDEF)
|
sym_sec = bfd_und_section_ptr;
|
sym_sec = bfd_und_section_ptr;
|
else if (isym->st_shndx == SHN_ABS)
|
else if (isym->st_shndx == SHN_ABS)
|
sym_sec = bfd_abs_section_ptr;
|
sym_sec = bfd_abs_section_ptr;
|
else if (isym->st_shndx == SHN_COMMON)
|
else if (isym->st_shndx == SHN_COMMON)
|
sym_sec = bfd_com_section_ptr;
|
sym_sec = bfd_com_section_ptr;
|
else
|
else
|
sym_sec
|
sym_sec
|
= bfd_section_from_elf_index (input_bfd, isym->st_shndx);
|
= bfd_section_from_elf_index (input_bfd, isym->st_shndx);
|
|
|
sym_name
|
sym_name
|
= bfd_elf_string_from_elf_section (input_bfd,
|
= bfd_elf_string_from_elf_section (input_bfd,
|
symtab_hdr->sh_link,
|
symtab_hdr->sh_link,
|
isym->st_name);
|
isym->st_name);
|
|
|
/* Tack on an ID so we can uniquely identify this
|
/* Tack on an ID so we can uniquely identify this
|
local symbol in the global hash table. */
|
local symbol in the global hash table. */
|
amt = strlen (sym_name) + 10;
|
amt = strlen (sym_name) + 10;
|
new_name = bfd_malloc (amt);
|
new_name = bfd_malloc (amt);
|
if (new_name == NULL)
|
if (new_name == NULL)
|
goto error_return;
|
goto error_return;
|
sprintf (new_name, "%s_%08x", sym_name, sym_sec->id);
|
sprintf (new_name, "%s_%08x", sym_name, sym_sec->id);
|
sym_name = new_name;
|
sym_name = new_name;
|
|
|
elftab = & hash_table->static_hash_table->root;
|
elftab = & hash_table->static_hash_table->root;
|
sym_hash = (struct elf32_mn10300_link_hash_entry *)
|
sym_hash = (struct elf32_mn10300_link_hash_entry *)
|
elf_link_hash_lookup (elftab, sym_name,
|
elf_link_hash_lookup (elftab, sym_name,
|
FALSE, FALSE, FALSE);
|
FALSE, FALSE, FALSE);
|
|
|
free (new_name);
|
free (new_name);
|
if (sym_hash == NULL)
|
if (sym_hash == NULL)
|
continue;
|
continue;
|
|
|
if (! (sym_hash->flags & MN10300_CONVERT_CALL_TO_CALLS)
|
if (! (sym_hash->flags & MN10300_CONVERT_CALL_TO_CALLS)
|
&& ! (sym_hash->flags & MN10300_DELETED_PROLOGUE_BYTES))
|
&& ! (sym_hash->flags & MN10300_DELETED_PROLOGUE_BYTES))
|
{
|
{
|
int bytes = 0;
|
int bytes = 0;
|
|
|
/* Note that we've changed things. */
|
/* Note that we've changed things. */
|
elf_section_data (section)->relocs = internal_relocs;
|
elf_section_data (section)->relocs = internal_relocs;
|
elf_section_data (section)->this_hdr.contents = contents;
|
elf_section_data (section)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Count how many bytes we're going to delete. */
|
/* Count how many bytes we're going to delete. */
|
if (sym_hash->movm_args)
|
if (sym_hash->movm_args)
|
bytes += 2;
|
bytes += 2;
|
|
|
if (sym_hash->stack_size > 0)
|
if (sym_hash->stack_size > 0)
|
{
|
{
|
if (sym_hash->stack_size <= 128)
|
if (sym_hash->stack_size <= 128)
|
bytes += 3;
|
bytes += 3;
|
else
|
else
|
bytes += 4;
|
bytes += 4;
|
}
|
}
|
|
|
/* Note that we've deleted prologue bytes for this
|
/* Note that we've deleted prologue bytes for this
|
function. */
|
function. */
|
sym_hash->flags |= MN10300_DELETED_PROLOGUE_BYTES;
|
sym_hash->flags |= MN10300_DELETED_PROLOGUE_BYTES;
|
|
|
/* Actually delete the bytes. */
|
/* Actually delete the bytes. */
|
if (!mn10300_elf_relax_delete_bytes (input_bfd,
|
if (!mn10300_elf_relax_delete_bytes (input_bfd,
|
section,
|
section,
|
isym->st_value,
|
isym->st_value,
|
bytes))
|
bytes))
|
goto error_return;
|
goto error_return;
|
|
|
/* Something changed. Not strictly necessary, but
|
/* Something changed. Not strictly necessary, but
|
may lead to more relaxing opportunities. */
|
may lead to more relaxing opportunities. */
|
*again = TRUE;
|
*again = TRUE;
|
}
|
}
|
}
|
}
|
|
|
/* Look for any global functions in this section which
|
/* Look for any global functions in this section which
|
need insns deleted from their prologues. */
|
need insns deleted from their prologues. */
|
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
- symtab_hdr->sh_info);
|
- symtab_hdr->sh_info);
|
hashes = elf_sym_hashes (input_bfd);
|
hashes = elf_sym_hashes (input_bfd);
|
end_hashes = hashes + symcount;
|
end_hashes = hashes + symcount;
|
for (; hashes < end_hashes; hashes++)
|
for (; hashes < end_hashes; hashes++)
|
{
|
{
|
struct elf32_mn10300_link_hash_entry *sym_hash;
|
struct elf32_mn10300_link_hash_entry *sym_hash;
|
|
|
sym_hash = (struct elf32_mn10300_link_hash_entry *) *hashes;
|
sym_hash = (struct elf32_mn10300_link_hash_entry *) *hashes;
|
if ((sym_hash->root.root.type == bfd_link_hash_defined
|
if ((sym_hash->root.root.type == bfd_link_hash_defined
|
|| sym_hash->root.root.type == bfd_link_hash_defweak)
|
|| sym_hash->root.root.type == bfd_link_hash_defweak)
|
&& sym_hash->root.root.u.def.section == section
|
&& sym_hash->root.root.u.def.section == section
|
&& ! (sym_hash->flags & MN10300_CONVERT_CALL_TO_CALLS)
|
&& ! (sym_hash->flags & MN10300_CONVERT_CALL_TO_CALLS)
|
&& ! (sym_hash->flags & MN10300_DELETED_PROLOGUE_BYTES))
|
&& ! (sym_hash->flags & MN10300_DELETED_PROLOGUE_BYTES))
|
{
|
{
|
int bytes = 0;
|
int bytes = 0;
|
bfd_vma symval;
|
bfd_vma symval;
|
|
|
/* Note that we've changed things. */
|
/* Note that we've changed things. */
|
elf_section_data (section)->relocs = internal_relocs;
|
elf_section_data (section)->relocs = internal_relocs;
|
elf_section_data (section)->this_hdr.contents = contents;
|
elf_section_data (section)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Count how many bytes we're going to delete. */
|
/* Count how many bytes we're going to delete. */
|
if (sym_hash->movm_args)
|
if (sym_hash->movm_args)
|
bytes += 2;
|
bytes += 2;
|
|
|
if (sym_hash->stack_size > 0)
|
if (sym_hash->stack_size > 0)
|
{
|
{
|
if (sym_hash->stack_size <= 128)
|
if (sym_hash->stack_size <= 128)
|
bytes += 3;
|
bytes += 3;
|
else
|
else
|
bytes += 4;
|
bytes += 4;
|
}
|
}
|
|
|
/* Note that we've deleted prologue bytes for this
|
/* Note that we've deleted prologue bytes for this
|
function. */
|
function. */
|
sym_hash->flags |= MN10300_DELETED_PROLOGUE_BYTES;
|
sym_hash->flags |= MN10300_DELETED_PROLOGUE_BYTES;
|
|
|
/* Actually delete the bytes. */
|
/* Actually delete the bytes. */
|
symval = sym_hash->root.root.u.def.value;
|
symval = sym_hash->root.root.u.def.value;
|
if (!mn10300_elf_relax_delete_bytes (input_bfd,
|
if (!mn10300_elf_relax_delete_bytes (input_bfd,
|
section,
|
section,
|
symval,
|
symval,
|
bytes))
|
bytes))
|
goto error_return;
|
goto error_return;
|
|
|
/* Something changed. Not strictly necessary, but
|
/* Something changed. Not strictly necessary, but
|
may lead to more relaxing opportunities. */
|
may lead to more relaxing opportunities. */
|
*again = TRUE;
|
*again = TRUE;
|
}
|
}
|
}
|
}
|
|
|
/* Cache or free any memory we allocated for the relocs. */
|
/* Cache or free any memory we allocated for the relocs. */
|
if (internal_relocs != NULL
|
if (internal_relocs != NULL
|
&& elf_section_data (section)->relocs != internal_relocs)
|
&& elf_section_data (section)->relocs != internal_relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
internal_relocs = NULL;
|
internal_relocs = NULL;
|
|
|
/* Cache or free any memory we allocated for the contents. */
|
/* Cache or free any memory we allocated for the contents. */
|
if (contents != NULL
|
if (contents != NULL
|
&& elf_section_data (section)->this_hdr.contents != contents)
|
&& elf_section_data (section)->this_hdr.contents != contents)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (contents);
|
free (contents);
|
else
|
else
|
/* Cache the section contents for elf_link_input_bfd. */
|
/* Cache the section contents for elf_link_input_bfd. */
|
elf_section_data (section)->this_hdr.contents = contents;
|
elf_section_data (section)->this_hdr.contents = contents;
|
}
|
}
|
contents = NULL;
|
contents = NULL;
|
}
|
}
|
|
|
/* Cache or free any memory we allocated for the symbols. */
|
/* Cache or free any memory we allocated for the symbols. */
|
if (isymbuf != NULL
|
if (isymbuf != NULL
|
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (isymbuf);
|
free (isymbuf);
|
else
|
else
|
/* Cache the symbols for elf_link_input_bfd. */
|
/* Cache the symbols for elf_link_input_bfd. */
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
}
|
}
|
isymbuf = NULL;
|
isymbuf = NULL;
|
}
|
}
|
}
|
}
|
|
|
/* (Re)initialize for the basic instruction shortening/relaxing pass. */
|
/* (Re)initialize for the basic instruction shortening/relaxing pass. */
|
contents = NULL;
|
contents = NULL;
|
internal_relocs = NULL;
|
internal_relocs = NULL;
|
isymbuf = NULL;
|
isymbuf = NULL;
|
/* For error_return. */
|
/* For error_return. */
|
section = sec;
|
section = sec;
|
|
|
/* We don't have to do anything for a relocatable link, if
|
/* We don't have to do anything for a relocatable link, if
|
this section does not have relocs, or if this is not a
|
this section does not have relocs, or if this is not a
|
code section. */
|
code section. */
|
if (link_info->relocatable
|
if (link_info->relocatable
|
|| (sec->flags & SEC_RELOC) == 0
|
|| (sec->flags & SEC_RELOC) == 0
|
|| sec->reloc_count == 0
|
|| sec->reloc_count == 0
|
|| (sec->flags & SEC_CODE) == 0)
|
|| (sec->flags & SEC_CODE) == 0)
|
return TRUE;
|
return TRUE;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
|
|
/* Get a copy of the native relocations. */
|
/* Get a copy of the native relocations. */
|
internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
|
internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
|
link_info->keep_memory);
|
link_info->keep_memory);
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
|
|
/* Scan for worst case alignment gap changes. Note that this logic
|
/* Scan for worst case alignment gap changes. Note that this logic
|
is not ideal; what we should do is run this scan for every
|
is not ideal; what we should do is run this scan for every
|
opcode/address range and adjust accordingly, but that's
|
opcode/address range and adjust accordingly, but that's
|
expensive. Worst case is that for an alignment of N bytes, we
|
expensive. Worst case is that for an alignment of N bytes, we
|
move by 2*N-N-1 bytes, assuming we have aligns of 1, 2, 4, 8, etc
|
move by 2*N-N-1 bytes, assuming we have aligns of 1, 2, 4, 8, etc
|
all before it. Plus, this still doesn't cover cross-section
|
all before it. Plus, this still doesn't cover cross-section
|
jumps with section alignment. */
|
jumps with section alignment. */
|
irelend = internal_relocs + sec->reloc_count;
|
irelend = internal_relocs + sec->reloc_count;
|
align_gap_adjustment = 0;
|
align_gap_adjustment = 0;
|
for (irel = internal_relocs; irel < irelend; irel++)
|
for (irel = internal_relocs; irel < irelend; irel++)
|
{
|
{
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN)
|
{
|
{
|
bfd_vma adj = 1 << irel->r_addend;
|
bfd_vma adj = 1 << irel->r_addend;
|
bfd_vma aend = irel->r_offset;
|
bfd_vma aend = irel->r_offset;
|
|
|
aend = BFD_ALIGN (aend, 1 << irel->r_addend);
|
aend = BFD_ALIGN (aend, 1 << irel->r_addend);
|
adj = 2 * adj - adj - 1;
|
adj = 2 * adj - adj - 1;
|
|
|
/* Record the biggest adjustmnet. Skip any alignment at the
|
/* Record the biggest adjustmnet. Skip any alignment at the
|
end of our section. */
|
end of our section. */
|
if (align_gap_adjustment < adj
|
if (align_gap_adjustment < adj
|
&& aend < sec->output_section->vma + sec->output_offset + sec->size)
|
&& aend < sec->output_section->vma + sec->output_offset + sec->size)
|
align_gap_adjustment = adj;
|
align_gap_adjustment = adj;
|
}
|
}
|
}
|
}
|
|
|
/* Walk through them looking for relaxing opportunities. */
|
/* Walk through them looking for relaxing opportunities. */
|
irelend = internal_relocs + sec->reloc_count;
|
irelend = internal_relocs + sec->reloc_count;
|
for (irel = internal_relocs; irel < irelend; irel++)
|
for (irel = internal_relocs; irel < irelend; irel++)
|
{
|
{
|
bfd_vma symval;
|
bfd_vma symval;
|
struct elf32_mn10300_link_hash_entry *h = NULL;
|
struct elf32_mn10300_link_hash_entry *h = NULL;
|
|
|
/* If this isn't something that can be relaxed, then ignore
|
/* If this isn't something that can be relaxed, then ignore
|
this reloc. */
|
this reloc. */
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_NONE
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_NONE
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_8
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_8
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_MAX)
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_MAX)
|
continue;
|
continue;
|
|
|
/* Get the section contents if we haven't done so already. */
|
/* Get the section contents if we haven't done so already. */
|
if (contents == NULL)
|
if (contents == NULL)
|
{
|
{
|
/* Get cached copy if it exists. */
|
/* Get cached copy if it exists. */
|
if (elf_section_data (sec)->this_hdr.contents != NULL)
|
if (elf_section_data (sec)->this_hdr.contents != NULL)
|
contents = elf_section_data (sec)->this_hdr.contents;
|
contents = elf_section_data (sec)->this_hdr.contents;
|
else
|
else
|
{
|
{
|
/* Go get them off disk. */
|
/* Go get them off disk. */
|
if (!bfd_malloc_and_get_section (abfd, sec, &contents))
|
if (!bfd_malloc_and_get_section (abfd, sec, &contents))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
}
|
}
|
|
|
/* Read this BFD's symbols if we haven't done so already. */
|
/* Read this BFD's symbols if we haven't done so already. */
|
if (isymbuf == NULL && symtab_hdr->sh_info != 0)
|
if (isymbuf == NULL && symtab_hdr->sh_info != 0)
|
{
|
{
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
|
isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
|
symtab_hdr->sh_info, 0,
|
symtab_hdr->sh_info, 0,
|
NULL, NULL, NULL);
|
NULL, NULL, NULL);
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
/* Get the value of the symbol referred to by the reloc. */
|
/* Get the value of the symbol referred to by the reloc. */
|
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
|
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
|
{
|
{
|
Elf_Internal_Sym *isym;
|
Elf_Internal_Sym *isym;
|
asection *sym_sec = NULL;
|
asection *sym_sec = NULL;
|
const char *sym_name;
|
const char *sym_name;
|
char *new_name;
|
char *new_name;
|
|
|
/* A local symbol. */
|
/* A local symbol. */
|
isym = isymbuf + ELF32_R_SYM (irel->r_info);
|
isym = isymbuf + ELF32_R_SYM (irel->r_info);
|
if (isym->st_shndx == SHN_UNDEF)
|
if (isym->st_shndx == SHN_UNDEF)
|
sym_sec = bfd_und_section_ptr;
|
sym_sec = bfd_und_section_ptr;
|
else if (isym->st_shndx == SHN_ABS)
|
else if (isym->st_shndx == SHN_ABS)
|
sym_sec = bfd_abs_section_ptr;
|
sym_sec = bfd_abs_section_ptr;
|
else if (isym->st_shndx == SHN_COMMON)
|
else if (isym->st_shndx == SHN_COMMON)
|
sym_sec = bfd_com_section_ptr;
|
sym_sec = bfd_com_section_ptr;
|
else
|
else
|
sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
|
|
sym_name = bfd_elf_string_from_elf_section (abfd,
|
sym_name = bfd_elf_string_from_elf_section (abfd,
|
symtab_hdr->sh_link,
|
symtab_hdr->sh_link,
|
isym->st_name);
|
isym->st_name);
|
|
|
if ((sym_sec->flags & SEC_MERGE)
|
if ((sym_sec->flags & SEC_MERGE)
|
&& ELF_ST_TYPE (isym->st_info) == STT_SECTION
|
&& ELF_ST_TYPE (isym->st_info) == STT_SECTION
|
&& sym_sec->sec_info_type == ELF_INFO_TYPE_MERGE)
|
&& sym_sec->sec_info_type == ELF_INFO_TYPE_MERGE)
|
{
|
{
|
symval = isym->st_value + irel->r_addend;
|
symval = isym->st_value + irel->r_addend;
|
symval = _bfd_merged_section_offset (abfd, & sym_sec,
|
symval = _bfd_merged_section_offset (abfd, & sym_sec,
|
elf_section_data (sym_sec)->sec_info,
|
elf_section_data (sym_sec)->sec_info,
|
symval);
|
symval);
|
symval += sym_sec->output_section->vma + sym_sec->output_offset - irel->r_addend;
|
symval += sym_sec->output_section->vma + sym_sec->output_offset - irel->r_addend;
|
}
|
}
|
else
|
else
|
symval = (isym->st_value
|
symval = (isym->st_value
|
+ sym_sec->output_section->vma
|
+ sym_sec->output_section->vma
|
+ sym_sec->output_offset);
|
+ sym_sec->output_offset);
|
|
|
/* Tack on an ID so we can uniquely identify this
|
/* Tack on an ID so we can uniquely identify this
|
local symbol in the global hash table. */
|
local symbol in the global hash table. */
|
new_name = bfd_malloc ((bfd_size_type) strlen (sym_name) + 10);
|
new_name = bfd_malloc ((bfd_size_type) strlen (sym_name) + 10);
|
if (new_name == NULL)
|
if (new_name == NULL)
|
goto error_return;
|
goto error_return;
|
sprintf (new_name, "%s_%08x", sym_name, sym_sec->id);
|
sprintf (new_name, "%s_%08x", sym_name, sym_sec->id);
|
sym_name = new_name;
|
sym_name = new_name;
|
|
|
h = (struct elf32_mn10300_link_hash_entry *)
|
h = (struct elf32_mn10300_link_hash_entry *)
|
elf_link_hash_lookup (&hash_table->static_hash_table->root,
|
elf_link_hash_lookup (&hash_table->static_hash_table->root,
|
sym_name, FALSE, FALSE, FALSE);
|
sym_name, FALSE, FALSE, FALSE);
|
free (new_name);
|
free (new_name);
|
}
|
}
|
else
|
else
|
{
|
{
|
unsigned long indx;
|
unsigned long indx;
|
|
|
/* An external symbol. */
|
/* An external symbol. */
|
indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
|
indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
|
h = (struct elf32_mn10300_link_hash_entry *)
|
h = (struct elf32_mn10300_link_hash_entry *)
|
(elf_sym_hashes (abfd)[indx]);
|
(elf_sym_hashes (abfd)[indx]);
|
BFD_ASSERT (h != NULL);
|
BFD_ASSERT (h != NULL);
|
if (h->root.root.type != bfd_link_hash_defined
|
if (h->root.root.type != bfd_link_hash_defined
|
&& h->root.root.type != bfd_link_hash_defweak)
|
&& h->root.root.type != bfd_link_hash_defweak)
|
/* This appears to be a reference to an undefined
|
/* This appears to be a reference to an undefined
|
symbol. Just ignore it--it will be caught by the
|
symbol. Just ignore it--it will be caught by the
|
regular reloc processing. */
|
regular reloc processing. */
|
continue;
|
continue;
|
|
|
/* Check for a reference to a discarded symbol and ignore it. */
|
/* Check for a reference to a discarded symbol and ignore it. */
|
if (h->root.root.u.def.section->output_section == NULL)
|
if (h->root.root.u.def.section->output_section == NULL)
|
continue;
|
continue;
|
|
|
symval = (h->root.root.u.def.value
|
symval = (h->root.root.u.def.value
|
+ h->root.root.u.def.section->output_section->vma
|
+ h->root.root.u.def.section->output_section->vma
|
+ h->root.root.u.def.section->output_offset);
|
+ h->root.root.u.def.section->output_offset);
|
}
|
}
|
|
|
/* For simplicity of coding, we are going to modify the section
|
/* For simplicity of coding, we are going to modify the section
|
contents, the section relocs, and the BFD symbol table. We
|
contents, the section relocs, and the BFD symbol table. We
|
must tell the rest of the code not to free up this
|
must tell the rest of the code not to free up this
|
information. It would be possible to instead create a table
|
information. It would be possible to instead create a table
|
of changes which have to be made, as is done in coff-mips.c;
|
of changes which have to be made, as is done in coff-mips.c;
|
that would be more work, but would require less memory when
|
that would be more work, but would require less memory when
|
the linker is run. */
|
the linker is run. */
|
|
|
/* Try to turn a 32bit pc-relative branch/call into a 16bit pc-relative
|
/* Try to turn a 32bit pc-relative branch/call into a 16bit pc-relative
|
branch/call, also deal with "call" -> "calls" conversions and
|
branch/call, also deal with "call" -> "calls" conversions and
|
insertion of prologue data into "call" instructions. */
|
insertion of prologue data into "call" instructions. */
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL32
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL32
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PLT32)
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PLT32)
|
{
|
{
|
bfd_vma value = symval;
|
bfd_vma value = symval;
|
|
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PLT32
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PLT32
|
&& h != NULL
|
&& h != NULL
|
&& ELF_ST_VISIBILITY (h->root.other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (h->root.other) != STV_INTERNAL
|
&& ELF_ST_VISIBILITY (h->root.other) != STV_HIDDEN
|
&& ELF_ST_VISIBILITY (h->root.other) != STV_HIDDEN
|
&& h->root.plt.offset != (bfd_vma) -1)
|
&& h->root.plt.offset != (bfd_vma) -1)
|
{
|
{
|
asection * splt;
|
asection * splt;
|
|
|
splt = bfd_get_section_by_name (elf_hash_table (link_info)
|
splt = bfd_get_section_by_name (elf_hash_table (link_info)
|
->dynobj, ".plt");
|
->dynobj, ".plt");
|
|
|
value = ((splt->output_section->vma
|
value = ((splt->output_section->vma
|
+ splt->output_offset
|
+ splt->output_offset
|
+ h->root.plt.offset)
|
+ h->root.plt.offset)
|
- (sec->output_section->vma
|
- (sec->output_section->vma
|
+ sec->output_offset
|
+ sec->output_offset
|
+ irel->r_offset));
|
+ irel->r_offset));
|
}
|
}
|
|
|
/* If we've got a "call" instruction that needs to be turned
|
/* If we've got a "call" instruction that needs to be turned
|
into a "calls" instruction, do so now. It saves a byte. */
|
into a "calls" instruction, do so now. It saves a byte. */
|
if (h && (h->flags & MN10300_CONVERT_CALL_TO_CALLS))
|
if (h && (h->flags & MN10300_CONVERT_CALL_TO_CALLS))
|
{
|
{
|
unsigned char code;
|
unsigned char code;
|
|
|
/* Get the opcode. */
|
/* Get the opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
|
|
/* Make sure we're working with a "call" instruction! */
|
/* Make sure we're working with a "call" instruction! */
|
if (code == 0xdd)
|
if (code == 0xdd)
|
{
|
{
|
/* Note that we've changed the relocs, section contents,
|
/* Note that we've changed the relocs, section contents,
|
etc. */
|
etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, 0xfc, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, 0xfc, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, 0xff, contents + irel->r_offset);
|
bfd_put_8 (abfd, 0xff, contents + irel->r_offset);
|
|
|
/* Fix irel->r_offset and irel->r_addend. */
|
/* Fix irel->r_offset and irel->r_addend. */
|
irel->r_offset += 1;
|
irel->r_offset += 1;
|
irel->r_addend += 1;
|
irel->r_addend += 1;
|
|
|
/* Delete one byte of data. */
|
/* Delete one byte of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 3, 1))
|
irel->r_offset + 3, 1))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
}
|
}
|
}
|
}
|
else if (h)
|
else if (h)
|
{
|
{
|
/* We've got a "call" instruction which needs some data
|
/* We've got a "call" instruction which needs some data
|
from target function filled in. */
|
from target function filled in. */
|
unsigned char code;
|
unsigned char code;
|
|
|
/* Get the opcode. */
|
/* Get the opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
|
|
/* Insert data from the target function into the "call"
|
/* Insert data from the target function into the "call"
|
instruction if needed. */
|
instruction if needed. */
|
if (code == 0xdd)
|
if (code == 0xdd)
|
{
|
{
|
bfd_put_8 (abfd, h->movm_args, contents + irel->r_offset + 4);
|
bfd_put_8 (abfd, h->movm_args, contents + irel->r_offset + 4);
|
bfd_put_8 (abfd, h->stack_size + h->movm_stack_size,
|
bfd_put_8 (abfd, h->stack_size + h->movm_stack_size,
|
contents + irel->r_offset + 5);
|
contents + irel->r_offset + 5);
|
}
|
}
|
}
|
}
|
|
|
/* Deal with pc-relative gunk. */
|
/* Deal with pc-relative gunk. */
|
value -= (sec->output_section->vma + sec->output_offset);
|
value -= (sec->output_section->vma + sec->output_offset);
|
value -= irel->r_offset;
|
value -= irel->r_offset;
|
value += irel->r_addend;
|
value += irel->r_addend;
|
|
|
/* See if the value will fit in 16 bits, note the high value is
|
/* See if the value will fit in 16 bits, note the high value is
|
0x7fff + 2 as the target will be two bytes closer if we are
|
0x7fff + 2 as the target will be two bytes closer if we are
|
able to relax. */
|
able to relax. */
|
/* Account for jumps across alignment boundaries using
|
/* Account for jumps across alignment boundaries using
|
align_gap_adjustment. */
|
align_gap_adjustment. */
|
if ((bfd_signed_vma) value < 0x8001 - (bfd_signed_vma) align_gap_adjustment
|
if ((bfd_signed_vma) value < 0x8001 - (bfd_signed_vma) align_gap_adjustment
|
&& ((bfd_signed_vma) value > -0x8000 + (bfd_signed_vma) align_gap_adjustment))
|
&& ((bfd_signed_vma) value > -0x8000 + (bfd_signed_vma) align_gap_adjustment))
|
{
|
{
|
unsigned char code;
|
unsigned char code;
|
|
|
/* Get the opcode. */
|
/* Get the opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
|
|
if (code != 0xdc && code != 0xdd && code != 0xff)
|
if (code != 0xdc && code != 0xdd && code != 0xff)
|
continue;
|
continue;
|
|
|
/* Note that we've changed the relocs, section contents, etc. */
|
/* Note that we've changed the relocs, section contents, etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
if (code == 0xdc)
|
if (code == 0xdc)
|
bfd_put_8 (abfd, 0xcc, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, 0xcc, contents + irel->r_offset - 1);
|
else if (code == 0xdd)
|
else if (code == 0xdd)
|
bfd_put_8 (abfd, 0xcd, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, 0xcd, contents + irel->r_offset - 1);
|
else if (code == 0xff)
|
else if (code == 0xff)
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
(ELF32_R_TYPE (irel->r_info)
|
(ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_PLT32)
|
== (int) R_MN10300_PLT32)
|
? R_MN10300_PLT16 :
|
? R_MN10300_PLT16 :
|
R_MN10300_PCREL16);
|
R_MN10300_PCREL16);
|
|
|
/* Delete two bytes of data. */
|
/* Delete two bytes of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 1, 2))
|
irel->r_offset + 1, 2))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
}
|
}
|
}
|
}
|
|
|
/* Try to turn a 16bit pc-relative branch into a 8bit pc-relative
|
/* Try to turn a 16bit pc-relative branch into a 8bit pc-relative
|
branch. */
|
branch. */
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL16)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL16)
|
{
|
{
|
bfd_vma value = symval;
|
bfd_vma value = symval;
|
|
|
/* If we've got a "call" instruction that needs to be turned
|
/* If we've got a "call" instruction that needs to be turned
|
into a "calls" instruction, do so now. It saves a byte. */
|
into a "calls" instruction, do so now. It saves a byte. */
|
if (h && (h->flags & MN10300_CONVERT_CALL_TO_CALLS))
|
if (h && (h->flags & MN10300_CONVERT_CALL_TO_CALLS))
|
{
|
{
|
unsigned char code;
|
unsigned char code;
|
|
|
/* Get the opcode. */
|
/* Get the opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
|
|
/* Make sure we're working with a "call" instruction! */
|
/* Make sure we're working with a "call" instruction! */
|
if (code == 0xcd)
|
if (code == 0xcd)
|
{
|
{
|
/* Note that we've changed the relocs, section contents,
|
/* Note that we've changed the relocs, section contents,
|
etc. */
|
etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, 0xff, contents + irel->r_offset);
|
bfd_put_8 (abfd, 0xff, contents + irel->r_offset);
|
|
|
/* Fix irel->r_offset and irel->r_addend. */
|
/* Fix irel->r_offset and irel->r_addend. */
|
irel->r_offset += 1;
|
irel->r_offset += 1;
|
irel->r_addend += 1;
|
irel->r_addend += 1;
|
|
|
/* Delete one byte of data. */
|
/* Delete one byte of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 1, 1))
|
irel->r_offset + 1, 1))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
}
|
}
|
}
|
}
|
else if (h)
|
else if (h)
|
{
|
{
|
unsigned char code;
|
unsigned char code;
|
|
|
/* Get the opcode. */
|
/* Get the opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
|
|
/* Insert data from the target function into the "call"
|
/* Insert data from the target function into the "call"
|
instruction if needed. */
|
instruction if needed. */
|
if (code == 0xcd)
|
if (code == 0xcd)
|
{
|
{
|
bfd_put_8 (abfd, h->movm_args, contents + irel->r_offset + 2);
|
bfd_put_8 (abfd, h->movm_args, contents + irel->r_offset + 2);
|
bfd_put_8 (abfd, h->stack_size + h->movm_stack_size,
|
bfd_put_8 (abfd, h->stack_size + h->movm_stack_size,
|
contents + irel->r_offset + 3);
|
contents + irel->r_offset + 3);
|
}
|
}
|
}
|
}
|
|
|
/* Deal with pc-relative gunk. */
|
/* Deal with pc-relative gunk. */
|
value -= (sec->output_section->vma + sec->output_offset);
|
value -= (sec->output_section->vma + sec->output_offset);
|
value -= irel->r_offset;
|
value -= irel->r_offset;
|
value += irel->r_addend;
|
value += irel->r_addend;
|
|
|
/* See if the value will fit in 8 bits, note the high value is
|
/* See if the value will fit in 8 bits, note the high value is
|
0x7f + 1 as the target will be one bytes closer if we are
|
0x7f + 1 as the target will be one bytes closer if we are
|
able to relax. */
|
able to relax. */
|
if ((long) value < 0x80 && (long) value > -0x80)
|
if ((long) value < 0x80 && (long) value > -0x80)
|
{
|
{
|
unsigned char code;
|
unsigned char code;
|
|
|
/* Get the opcode. */
|
/* Get the opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
|
|
if (code != 0xcc)
|
if (code != 0xcc)
|
continue;
|
continue;
|
|
|
/* Note that we've changed the relocs, section contents, etc. */
|
/* Note that we've changed the relocs, section contents, etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, 0xca, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, 0xca, contents + irel->r_offset - 1);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
R_MN10300_PCREL8);
|
R_MN10300_PCREL8);
|
|
|
/* Delete one byte of data. */
|
/* Delete one byte of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 1, 1))
|
irel->r_offset + 1, 1))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
}
|
}
|
}
|
}
|
|
|
/* Try to eliminate an unconditional 8 bit pc-relative branch
|
/* Try to eliminate an unconditional 8 bit pc-relative branch
|
which immediately follows a conditional 8 bit pc-relative
|
which immediately follows a conditional 8 bit pc-relative
|
branch around the unconditional branch.
|
branch around the unconditional branch.
|
|
|
original: new:
|
original: new:
|
bCC lab1 bCC' lab2
|
bCC lab1 bCC' lab2
|
bra lab2
|
bra lab2
|
lab1: lab1:
|
lab1: lab1:
|
|
|
This happens when the bCC can't reach lab2 at assembly time,
|
This happens when the bCC can't reach lab2 at assembly time,
|
but due to other relaxations it can reach at link time. */
|
but due to other relaxations it can reach at link time. */
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL8)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL8)
|
{
|
{
|
Elf_Internal_Rela *nrel;
|
Elf_Internal_Rela *nrel;
|
bfd_vma value = symval;
|
bfd_vma value = symval;
|
unsigned char code;
|
unsigned char code;
|
|
|
/* Deal with pc-relative gunk. */
|
/* Deal with pc-relative gunk. */
|
value -= (sec->output_section->vma + sec->output_offset);
|
value -= (sec->output_section->vma + sec->output_offset);
|
value -= irel->r_offset;
|
value -= irel->r_offset;
|
value += irel->r_addend;
|
value += irel->r_addend;
|
|
|
/* Do nothing if this reloc is the last byte in the section. */
|
/* Do nothing if this reloc is the last byte in the section. */
|
if (irel->r_offset == sec->size)
|
if (irel->r_offset == sec->size)
|
continue;
|
continue;
|
|
|
/* See if the next instruction is an unconditional pc-relative
|
/* See if the next instruction is an unconditional pc-relative
|
branch, more often than not this test will fail, so we
|
branch, more often than not this test will fail, so we
|
test it first to speed things up. */
|
test it first to speed things up. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset + 1);
|
code = bfd_get_8 (abfd, contents + irel->r_offset + 1);
|
if (code != 0xca)
|
if (code != 0xca)
|
continue;
|
continue;
|
|
|
/* Also make sure the next relocation applies to the next
|
/* Also make sure the next relocation applies to the next
|
instruction and that it's a pc-relative 8 bit branch. */
|
instruction and that it's a pc-relative 8 bit branch. */
|
nrel = irel + 1;
|
nrel = irel + 1;
|
if (nrel == irelend
|
if (nrel == irelend
|
|| irel->r_offset + 2 != nrel->r_offset
|
|| irel->r_offset + 2 != nrel->r_offset
|
|| ELF32_R_TYPE (nrel->r_info) != (int) R_MN10300_PCREL8)
|
|| ELF32_R_TYPE (nrel->r_info) != (int) R_MN10300_PCREL8)
|
continue;
|
continue;
|
|
|
/* Make sure our destination immediately follows the
|
/* Make sure our destination immediately follows the
|
unconditional branch. */
|
unconditional branch. */
|
if (symval != (sec->output_section->vma + sec->output_offset
|
if (symval != (sec->output_section->vma + sec->output_offset
|
+ irel->r_offset + 3))
|
+ irel->r_offset + 3))
|
continue;
|
continue;
|
|
|
/* Now make sure we are a conditional branch. This may not
|
/* Now make sure we are a conditional branch. This may not
|
be necessary, but why take the chance.
|
be necessary, but why take the chance.
|
|
|
Note these checks assume that R_MN10300_PCREL8 relocs
|
Note these checks assume that R_MN10300_PCREL8 relocs
|
only occur on bCC and bCCx insns. If they occured
|
only occur on bCC and bCCx insns. If they occured
|
elsewhere, we'd need to know the start of this insn
|
elsewhere, we'd need to know the start of this insn
|
for this check to be accurate. */
|
for this check to be accurate. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
if (code != 0xc0 && code != 0xc1 && code != 0xc2
|
if (code != 0xc0 && code != 0xc1 && code != 0xc2
|
&& code != 0xc3 && code != 0xc4 && code != 0xc5
|
&& code != 0xc3 && code != 0xc4 && code != 0xc5
|
&& code != 0xc6 && code != 0xc7 && code != 0xc8
|
&& code != 0xc6 && code != 0xc7 && code != 0xc8
|
&& code != 0xc9 && code != 0xe8 && code != 0xe9
|
&& code != 0xc9 && code != 0xe8 && code != 0xe9
|
&& code != 0xea && code != 0xeb)
|
&& code != 0xea && code != 0xeb)
|
continue;
|
continue;
|
|
|
/* We also have to be sure there is no symbol/label
|
/* We also have to be sure there is no symbol/label
|
at the unconditional branch. */
|
at the unconditional branch. */
|
if (mn10300_elf_symbol_address_p (abfd, sec, isymbuf,
|
if (mn10300_elf_symbol_address_p (abfd, sec, isymbuf,
|
irel->r_offset + 1))
|
irel->r_offset + 1))
|
continue;
|
continue;
|
|
|
/* Note that we've changed the relocs, section contents, etc. */
|
/* Note that we've changed the relocs, section contents, etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Reverse the condition of the first branch. */
|
/* Reverse the condition of the first branch. */
|
switch (code)
|
switch (code)
|
{
|
{
|
case 0xc8:
|
case 0xc8:
|
code = 0xc9;
|
code = 0xc9;
|
break;
|
break;
|
case 0xc9:
|
case 0xc9:
|
code = 0xc8;
|
code = 0xc8;
|
break;
|
break;
|
case 0xc0:
|
case 0xc0:
|
code = 0xc2;
|
code = 0xc2;
|
break;
|
break;
|
case 0xc2:
|
case 0xc2:
|
code = 0xc0;
|
code = 0xc0;
|
break;
|
break;
|
case 0xc3:
|
case 0xc3:
|
code = 0xc1;
|
code = 0xc1;
|
break;
|
break;
|
case 0xc1:
|
case 0xc1:
|
code = 0xc3;
|
code = 0xc3;
|
break;
|
break;
|
case 0xc4:
|
case 0xc4:
|
code = 0xc6;
|
code = 0xc6;
|
break;
|
break;
|
case 0xc6:
|
case 0xc6:
|
code = 0xc4;
|
code = 0xc4;
|
break;
|
break;
|
case 0xc7:
|
case 0xc7:
|
code = 0xc5;
|
code = 0xc5;
|
break;
|
break;
|
case 0xc5:
|
case 0xc5:
|
code = 0xc7;
|
code = 0xc7;
|
break;
|
break;
|
case 0xe8:
|
case 0xe8:
|
code = 0xe9;
|
code = 0xe9;
|
break;
|
break;
|
case 0x9d:
|
case 0x9d:
|
code = 0xe8;
|
code = 0xe8;
|
break;
|
break;
|
case 0xea:
|
case 0xea:
|
code = 0xeb;
|
code = 0xeb;
|
break;
|
break;
|
case 0xeb:
|
case 0xeb:
|
code = 0xea;
|
code = 0xea;
|
break;
|
break;
|
}
|
}
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
|
|
|
/* Set the reloc type and symbol for the first branch
|
/* Set the reloc type and symbol for the first branch
|
from the second branch. */
|
from the second branch. */
|
irel->r_info = nrel->r_info;
|
irel->r_info = nrel->r_info;
|
|
|
/* Make the reloc for the second branch a null reloc. */
|
/* Make the reloc for the second branch a null reloc. */
|
nrel->r_info = ELF32_R_INFO (ELF32_R_SYM (nrel->r_info),
|
nrel->r_info = ELF32_R_INFO (ELF32_R_SYM (nrel->r_info),
|
R_MN10300_NONE);
|
R_MN10300_NONE);
|
|
|
/* Delete two bytes of data. */
|
/* Delete two bytes of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 1, 2))
|
irel->r_offset + 1, 2))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
}
|
}
|
|
|
/* Try to turn a 24 immediate, displacement or absolute address
|
/* Try to turn a 24 immediate, displacement or absolute address
|
into a 8 immediate, displacement or absolute address. */
|
into a 8 immediate, displacement or absolute address. */
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_24)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_24)
|
{
|
{
|
bfd_vma value = symval;
|
bfd_vma value = symval;
|
value += irel->r_addend;
|
value += irel->r_addend;
|
|
|
/* See if the value will fit in 8 bits. */
|
/* See if the value will fit in 8 bits. */
|
if ((long) value < 0x7f && (long) value > -0x80)
|
if ((long) value < 0x7f && (long) value > -0x80)
|
{
|
{
|
unsigned char code;
|
unsigned char code;
|
|
|
/* AM33 insns which have 24 operands are 6 bytes long and
|
/* AM33 insns which have 24 operands are 6 bytes long and
|
will have 0xfd as the first byte. */
|
will have 0xfd as the first byte. */
|
|
|
/* Get the first opcode. */
|
/* Get the first opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 3);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 3);
|
|
|
if (code == 0xfd)
|
if (code == 0xfd)
|
{
|
{
|
/* Get the second opcode. */
|
/* Get the second opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
|
|
|
/* We can not relax 0x6b, 0x7b, 0x8b, 0x9b as no 24bit
|
/* We can not relax 0x6b, 0x7b, 0x8b, 0x9b as no 24bit
|
equivalent instructions exists. */
|
equivalent instructions exists. */
|
if (code != 0x6b && code != 0x7b
|
if (code != 0x6b && code != 0x7b
|
&& code != 0x8b && code != 0x9b
|
&& code != 0x8b && code != 0x9b
|
&& ((code & 0x0f) == 0x09 || (code & 0x0f) == 0x08
|
&& ((code & 0x0f) == 0x09 || (code & 0x0f) == 0x08
|
|| (code & 0x0f) == 0x0a || (code & 0x0f) == 0x0b
|
|| (code & 0x0f) == 0x0a || (code & 0x0f) == 0x0b
|
|| (code & 0x0f) == 0x0e))
|
|| (code & 0x0f) == 0x0e))
|
{
|
{
|
/* Not safe if the high bit is on as relaxing may
|
/* Not safe if the high bit is on as relaxing may
|
move the value out of high mem and thus not fit
|
move the value out of high mem and thus not fit
|
in a signed 8bit value. This is currently over
|
in a signed 8bit value. This is currently over
|
conservative. */
|
conservative. */
|
if ((value & 0x80) == 0)
|
if ((value & 0x80) == 0)
|
{
|
{
|
/* Note that we've changed the relocation contents,
|
/* Note that we've changed the relocation contents,
|
etc. */
|
etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, 0xfb, contents + irel->r_offset - 3);
|
bfd_put_8 (abfd, 0xfb, contents + irel->r_offset - 3);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info =
|
irel->r_info =
|
ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
R_MN10300_8);
|
R_MN10300_8);
|
|
|
/* Delete two bytes of data. */
|
/* Delete two bytes of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 1, 2))
|
irel->r_offset + 1, 2))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax
|
/* That will change things, so, we should relax
|
again. Note that this is not required, and it
|
again. Note that this is not required, and it
|
may be slow. */
|
may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Try to turn a 32bit immediate, displacement or absolute address
|
/* Try to turn a 32bit immediate, displacement or absolute address
|
into a 16bit immediate, displacement or absolute address. */
|
into a 16bit immediate, displacement or absolute address. */
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_32
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_32
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOT32
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOT32
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTOFF32)
|
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTOFF32)
|
{
|
{
|
bfd_vma value = symval;
|
bfd_vma value = symval;
|
|
|
if (ELF32_R_TYPE (irel->r_info) != (int) R_MN10300_32)
|
if (ELF32_R_TYPE (irel->r_info) != (int) R_MN10300_32)
|
{
|
{
|
asection * sgot;
|
asection * sgot;
|
|
|
sgot = bfd_get_section_by_name (elf_hash_table (link_info)
|
sgot = bfd_get_section_by_name (elf_hash_table (link_info)
|
->dynobj, ".got");
|
->dynobj, ".got");
|
|
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOT32)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOT32)
|
{
|
{
|
value = sgot->output_offset;
|
value = sgot->output_offset;
|
|
|
if (h)
|
if (h)
|
value += h->root.got.offset;
|
value += h->root.got.offset;
|
else
|
else
|
value += (elf_local_got_offsets
|
value += (elf_local_got_offsets
|
(abfd)[ELF32_R_SYM (irel->r_info)]);
|
(abfd)[ELF32_R_SYM (irel->r_info)]);
|
}
|
}
|
else if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTOFF32)
|
else if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTOFF32)
|
value -= sgot->output_section->vma;
|
value -= sgot->output_section->vma;
|
else if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTPC32)
|
else if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTPC32)
|
value = (sgot->output_section->vma
|
value = (sgot->output_section->vma
|
- (sec->output_section->vma
|
- (sec->output_section->vma
|
+ sec->output_offset
|
+ sec->output_offset
|
+ irel->r_offset));
|
+ irel->r_offset));
|
else
|
else
|
abort ();
|
abort ();
|
}
|
}
|
|
|
value += irel->r_addend;
|
value += irel->r_addend;
|
|
|
/* See if the value will fit in 24 bits.
|
/* See if the value will fit in 24 bits.
|
We allow any 16bit match here. We prune those we can't
|
We allow any 16bit match here. We prune those we can't
|
handle below. */
|
handle below. */
|
if ((long) value < 0x7fffff && (long) value > -0x800000)
|
if ((long) value < 0x7fffff && (long) value > -0x800000)
|
{
|
{
|
unsigned char code;
|
unsigned char code;
|
|
|
/* AM33 insns which have 32bit operands are 7 bytes long and
|
/* AM33 insns which have 32bit operands are 7 bytes long and
|
will have 0xfe as the first byte. */
|
will have 0xfe as the first byte. */
|
|
|
/* Get the first opcode. */
|
/* Get the first opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 3);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 3);
|
|
|
if (code == 0xfe)
|
if (code == 0xfe)
|
{
|
{
|
/* Get the second opcode. */
|
/* Get the second opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
|
|
|
/* All the am33 32 -> 24 relaxing possibilities. */
|
/* All the am33 32 -> 24 relaxing possibilities. */
|
/* We can not relax 0x6b, 0x7b, 0x8b, 0x9b as no 24bit
|
/* We can not relax 0x6b, 0x7b, 0x8b, 0x9b as no 24bit
|
equivalent instructions exists. */
|
equivalent instructions exists. */
|
if (code != 0x6b && code != 0x7b
|
if (code != 0x6b && code != 0x7b
|
&& code != 0x8b && code != 0x9b
|
&& code != 0x8b && code != 0x9b
|
&& (ELF32_R_TYPE (irel->r_info)
|
&& (ELF32_R_TYPE (irel->r_info)
|
!= (int) R_MN10300_GOTPC32)
|
!= (int) R_MN10300_GOTPC32)
|
&& ((code & 0x0f) == 0x09 || (code & 0x0f) == 0x08
|
&& ((code & 0x0f) == 0x09 || (code & 0x0f) == 0x08
|
|| (code & 0x0f) == 0x0a || (code & 0x0f) == 0x0b
|
|| (code & 0x0f) == 0x0a || (code & 0x0f) == 0x0b
|
|| (code & 0x0f) == 0x0e))
|
|| (code & 0x0f) == 0x0e))
|
{
|
{
|
/* Not safe if the high bit is on as relaxing may
|
/* Not safe if the high bit is on as relaxing may
|
move the value out of high mem and thus not fit
|
move the value out of high mem and thus not fit
|
in a signed 16bit value. This is currently over
|
in a signed 16bit value. This is currently over
|
conservative. */
|
conservative. */
|
if ((value & 0x8000) == 0)
|
if ((value & 0x8000) == 0)
|
{
|
{
|
/* Note that we've changed the relocation contents,
|
/* Note that we've changed the relocation contents,
|
etc. */
|
etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, 0xfd, contents + irel->r_offset - 3);
|
bfd_put_8 (abfd, 0xfd, contents + irel->r_offset - 3);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info =
|
irel->r_info =
|
ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
(ELF32_R_TYPE (irel->r_info)
|
(ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTOFF32)
|
== (int) R_MN10300_GOTOFF32)
|
? R_MN10300_GOTOFF24
|
? R_MN10300_GOTOFF24
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOT32)
|
== (int) R_MN10300_GOT32)
|
? R_MN10300_GOT24 :
|
? R_MN10300_GOT24 :
|
R_MN10300_24);
|
R_MN10300_24);
|
|
|
/* Delete one byte of data. */
|
/* Delete one byte of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 3, 1))
|
irel->r_offset + 3, 1))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax
|
/* That will change things, so, we should relax
|
again. Note that this is not required, and it
|
again. Note that this is not required, and it
|
may be slow. */
|
may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* See if the value will fit in 16 bits.
|
/* See if the value will fit in 16 bits.
|
We allow any 16bit match here. We prune those we can't
|
We allow any 16bit match here. We prune those we can't
|
handle below. */
|
handle below. */
|
if ((long) value < 0x7fff && (long) value > -0x8000)
|
if ((long) value < 0x7fff && (long) value > -0x8000)
|
{
|
{
|
unsigned char code;
|
unsigned char code;
|
|
|
/* Most insns which have 32bit operands are 6 bytes long;
|
/* Most insns which have 32bit operands are 6 bytes long;
|
exceptions are pcrel insns and bit insns.
|
exceptions are pcrel insns and bit insns.
|
|
|
We handle pcrel insns above. We don't bother trying
|
We handle pcrel insns above. We don't bother trying
|
to handle the bit insns here.
|
to handle the bit insns here.
|
|
|
The first byte of the remaining insns will be 0xfc. */
|
The first byte of the remaining insns will be 0xfc. */
|
|
|
/* Get the first opcode. */
|
/* Get the first opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
|
|
|
if (code != 0xfc)
|
if (code != 0xfc)
|
continue;
|
continue;
|
|
|
/* Get the second opcode. */
|
/* Get the second opcode. */
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
|
|
if ((code & 0xf0) < 0x80)
|
if ((code & 0xf0) < 0x80)
|
switch (code & 0xf0)
|
switch (code & 0xf0)
|
{
|
{
|
/* mov (d32,am),dn -> mov (d32,am),dn
|
/* mov (d32,am),dn -> mov (d32,am),dn
|
mov dm,(d32,am) -> mov dn,(d32,am)
|
mov dm,(d32,am) -> mov dn,(d32,am)
|
mov (d32,am),an -> mov (d32,am),an
|
mov (d32,am),an -> mov (d32,am),an
|
mov dm,(d32,am) -> mov dn,(d32,am)
|
mov dm,(d32,am) -> mov dn,(d32,am)
|
movbu (d32,am),dn -> movbu (d32,am),dn
|
movbu (d32,am),dn -> movbu (d32,am),dn
|
movbu dm,(d32,am) -> movbu dn,(d32,am)
|
movbu dm,(d32,am) -> movbu dn,(d32,am)
|
movhu (d32,am),dn -> movhu (d32,am),dn
|
movhu (d32,am),dn -> movhu (d32,am),dn
|
movhu dm,(d32,am) -> movhu dn,(d32,am) */
|
movhu dm,(d32,am) -> movhu dn,(d32,am) */
|
case 0x00:
|
case 0x00:
|
case 0x10:
|
case 0x10:
|
case 0x20:
|
case 0x20:
|
case 0x30:
|
case 0x30:
|
case 0x40:
|
case 0x40:
|
case 0x50:
|
case 0x50:
|
case 0x60:
|
case 0x60:
|
case 0x70:
|
case 0x70:
|
/* Not safe if the high bit is on as relaxing may
|
/* Not safe if the high bit is on as relaxing may
|
move the value out of high mem and thus not fit
|
move the value out of high mem and thus not fit
|
in a signed 16bit value. */
|
in a signed 16bit value. */
|
if (code == 0xcc
|
if (code == 0xcc
|
&& (value & 0x8000))
|
&& (value & 0x8000))
|
continue;
|
continue;
|
|
|
/* Note that we've changed the relocation contents, etc. */
|
/* Note that we've changed the relocation contents, etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
(ELF32_R_TYPE (irel->r_info)
|
(ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTOFF32)
|
== (int) R_MN10300_GOTOFF32)
|
? R_MN10300_GOTOFF16
|
? R_MN10300_GOTOFF16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOT32)
|
== (int) R_MN10300_GOT32)
|
? R_MN10300_GOT16
|
? R_MN10300_GOT16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTPC32)
|
== (int) R_MN10300_GOTPC32)
|
? R_MN10300_GOTPC16 :
|
? R_MN10300_GOTPC16 :
|
R_MN10300_16);
|
R_MN10300_16);
|
|
|
/* Delete two bytes of data. */
|
/* Delete two bytes of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 2, 2))
|
irel->r_offset + 2, 2))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
break;
|
break;
|
}
|
}
|
else if ((code & 0xf0) == 0x80
|
else if ((code & 0xf0) == 0x80
|
|| (code & 0xf0) == 0x90)
|
|| (code & 0xf0) == 0x90)
|
switch (code & 0xf3)
|
switch (code & 0xf3)
|
{
|
{
|
/* mov dn,(abs32) -> mov dn,(abs16)
|
/* mov dn,(abs32) -> mov dn,(abs16)
|
movbu dn,(abs32) -> movbu dn,(abs16)
|
movbu dn,(abs32) -> movbu dn,(abs16)
|
movhu dn,(abs32) -> movhu dn,(abs16) */
|
movhu dn,(abs32) -> movhu dn,(abs16) */
|
case 0x81:
|
case 0x81:
|
case 0x82:
|
case 0x82:
|
case 0x83:
|
case 0x83:
|
/* Note that we've changed the relocation contents, etc. */
|
/* Note that we've changed the relocation contents, etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
if ((code & 0xf3) == 0x81)
|
if ((code & 0xf3) == 0x81)
|
code = 0x01 + (code & 0x0c);
|
code = 0x01 + (code & 0x0c);
|
else if ((code & 0xf3) == 0x82)
|
else if ((code & 0xf3) == 0x82)
|
code = 0x02 + (code & 0x0c);
|
code = 0x02 + (code & 0x0c);
|
else if ((code & 0xf3) == 0x83)
|
else if ((code & 0xf3) == 0x83)
|
code = 0x03 + (code & 0x0c);
|
code = 0x03 + (code & 0x0c);
|
else
|
else
|
abort ();
|
abort ();
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
(ELF32_R_TYPE (irel->r_info)
|
(ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTOFF32)
|
== (int) R_MN10300_GOTOFF32)
|
? R_MN10300_GOTOFF16
|
? R_MN10300_GOTOFF16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOT32)
|
== (int) R_MN10300_GOT32)
|
? R_MN10300_GOT16
|
? R_MN10300_GOT16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTPC32)
|
== (int) R_MN10300_GOTPC32)
|
? R_MN10300_GOTPC16 :
|
? R_MN10300_GOTPC16 :
|
R_MN10300_16);
|
R_MN10300_16);
|
|
|
/* The opcode got shorter too, so we have to fix the
|
/* The opcode got shorter too, so we have to fix the
|
addend and offset too! */
|
addend and offset too! */
|
irel->r_offset -= 1;
|
irel->r_offset -= 1;
|
|
|
/* Delete three bytes of data. */
|
/* Delete three bytes of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 1, 3))
|
irel->r_offset + 1, 3))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
break;
|
break;
|
|
|
/* mov am,(abs32) -> mov am,(abs16)
|
/* mov am,(abs32) -> mov am,(abs16)
|
mov am,(d32,sp) -> mov am,(d16,sp)
|
mov am,(d32,sp) -> mov am,(d16,sp)
|
mov dm,(d32,sp) -> mov dm,(d32,sp)
|
mov dm,(d32,sp) -> mov dm,(d32,sp)
|
movbu dm,(d32,sp) -> movbu dm,(d32,sp)
|
movbu dm,(d32,sp) -> movbu dm,(d32,sp)
|
movhu dm,(d32,sp) -> movhu dm,(d32,sp) */
|
movhu dm,(d32,sp) -> movhu dm,(d32,sp) */
|
case 0x80:
|
case 0x80:
|
case 0x90:
|
case 0x90:
|
case 0x91:
|
case 0x91:
|
case 0x92:
|
case 0x92:
|
case 0x93:
|
case 0x93:
|
/* sp-based offsets are zero-extended. */
|
/* sp-based offsets are zero-extended. */
|
if (code >= 0x90 && code <= 0x93
|
if (code >= 0x90 && code <= 0x93
|
&& (long) value < 0)
|
&& (long) value < 0)
|
continue;
|
continue;
|
|
|
/* Note that we've changed the relocation contents, etc. */
|
/* Note that we've changed the relocation contents, etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
(ELF32_R_TYPE (irel->r_info)
|
(ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTOFF32)
|
== (int) R_MN10300_GOTOFF32)
|
? R_MN10300_GOTOFF16
|
? R_MN10300_GOTOFF16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOT32)
|
== (int) R_MN10300_GOT32)
|
? R_MN10300_GOT16
|
? R_MN10300_GOT16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTPC32)
|
== (int) R_MN10300_GOTPC32)
|
? R_MN10300_GOTPC16 :
|
? R_MN10300_GOTPC16 :
|
R_MN10300_16);
|
R_MN10300_16);
|
|
|
/* Delete two bytes of data. */
|
/* Delete two bytes of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 2, 2))
|
irel->r_offset + 2, 2))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
break;
|
break;
|
}
|
}
|
else if ((code & 0xf0) < 0xf0)
|
else if ((code & 0xf0) < 0xf0)
|
switch (code & 0xfc)
|
switch (code & 0xfc)
|
{
|
{
|
/* mov imm32,dn -> mov imm16,dn
|
/* mov imm32,dn -> mov imm16,dn
|
mov imm32,an -> mov imm16,an
|
mov imm32,an -> mov imm16,an
|
mov (abs32),dn -> mov (abs16),dn
|
mov (abs32),dn -> mov (abs16),dn
|
movbu (abs32),dn -> movbu (abs16),dn
|
movbu (abs32),dn -> movbu (abs16),dn
|
movhu (abs32),dn -> movhu (abs16),dn */
|
movhu (abs32),dn -> movhu (abs16),dn */
|
case 0xcc:
|
case 0xcc:
|
case 0xdc:
|
case 0xdc:
|
case 0xa4:
|
case 0xa4:
|
case 0xa8:
|
case 0xa8:
|
case 0xac:
|
case 0xac:
|
/* Not safe if the high bit is on as relaxing may
|
/* Not safe if the high bit is on as relaxing may
|
move the value out of high mem and thus not fit
|
move the value out of high mem and thus not fit
|
in a signed 16bit value. */
|
in a signed 16bit value. */
|
if (code == 0xcc
|
if (code == 0xcc
|
&& (value & 0x8000))
|
&& (value & 0x8000))
|
continue;
|
continue;
|
|
|
/* mov imm16, an zero-extends the immediate. */
|
/* mov imm16, an zero-extends the immediate. */
|
if (code == 0xdc
|
if (code == 0xdc
|
&& (long) value < 0)
|
&& (long) value < 0)
|
continue;
|
continue;
|
|
|
/* Note that we've changed the relocation contents, etc. */
|
/* Note that we've changed the relocation contents, etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
if ((code & 0xfc) == 0xcc)
|
if ((code & 0xfc) == 0xcc)
|
code = 0x2c + (code & 0x03);
|
code = 0x2c + (code & 0x03);
|
else if ((code & 0xfc) == 0xdc)
|
else if ((code & 0xfc) == 0xdc)
|
code = 0x24 + (code & 0x03);
|
code = 0x24 + (code & 0x03);
|
else if ((code & 0xfc) == 0xa4)
|
else if ((code & 0xfc) == 0xa4)
|
code = 0x30 + (code & 0x03);
|
code = 0x30 + (code & 0x03);
|
else if ((code & 0xfc) == 0xa8)
|
else if ((code & 0xfc) == 0xa8)
|
code = 0x34 + (code & 0x03);
|
code = 0x34 + (code & 0x03);
|
else if ((code & 0xfc) == 0xac)
|
else if ((code & 0xfc) == 0xac)
|
code = 0x38 + (code & 0x03);
|
code = 0x38 + (code & 0x03);
|
else
|
else
|
abort ();
|
abort ();
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
(ELF32_R_TYPE (irel->r_info)
|
(ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTOFF32)
|
== (int) R_MN10300_GOTOFF32)
|
? R_MN10300_GOTOFF16
|
? R_MN10300_GOTOFF16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOT32)
|
== (int) R_MN10300_GOT32)
|
? R_MN10300_GOT16
|
? R_MN10300_GOT16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTPC32)
|
== (int) R_MN10300_GOTPC32)
|
? R_MN10300_GOTPC16 :
|
? R_MN10300_GOTPC16 :
|
R_MN10300_16);
|
R_MN10300_16);
|
|
|
/* The opcode got shorter too, so we have to fix the
|
/* The opcode got shorter too, so we have to fix the
|
addend and offset too! */
|
addend and offset too! */
|
irel->r_offset -= 1;
|
irel->r_offset -= 1;
|
|
|
/* Delete three bytes of data. */
|
/* Delete three bytes of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 1, 3))
|
irel->r_offset + 1, 3))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
break;
|
break;
|
|
|
/* mov (abs32),an -> mov (abs16),an
|
/* mov (abs32),an -> mov (abs16),an
|
mov (d32,sp),an -> mov (d16,sp),an
|
mov (d32,sp),an -> mov (d16,sp),an
|
mov (d32,sp),dn -> mov (d16,sp),dn
|
mov (d32,sp),dn -> mov (d16,sp),dn
|
movbu (d32,sp),dn -> movbu (d16,sp),dn
|
movbu (d32,sp),dn -> movbu (d16,sp),dn
|
movhu (d32,sp),dn -> movhu (d16,sp),dn
|
movhu (d32,sp),dn -> movhu (d16,sp),dn
|
add imm32,dn -> add imm16,dn
|
add imm32,dn -> add imm16,dn
|
cmp imm32,dn -> cmp imm16,dn
|
cmp imm32,dn -> cmp imm16,dn
|
add imm32,an -> add imm16,an
|
add imm32,an -> add imm16,an
|
cmp imm32,an -> cmp imm16,an
|
cmp imm32,an -> cmp imm16,an
|
and imm32,dn -> and imm16,dn
|
and imm32,dn -> and imm16,dn
|
or imm32,dn -> or imm16,dn
|
or imm32,dn -> or imm16,dn
|
xor imm32,dn -> xor imm16,dn
|
xor imm32,dn -> xor imm16,dn
|
btst imm32,dn -> btst imm16,dn */
|
btst imm32,dn -> btst imm16,dn */
|
|
|
case 0xa0:
|
case 0xa0:
|
case 0xb0:
|
case 0xb0:
|
case 0xb1:
|
case 0xb1:
|
case 0xb2:
|
case 0xb2:
|
case 0xb3:
|
case 0xb3:
|
case 0xc0:
|
case 0xc0:
|
case 0xc8:
|
case 0xc8:
|
|
|
case 0xd0:
|
case 0xd0:
|
case 0xd8:
|
case 0xd8:
|
case 0xe0:
|
case 0xe0:
|
case 0xe1:
|
case 0xe1:
|
case 0xe2:
|
case 0xe2:
|
case 0xe3:
|
case 0xe3:
|
/* cmp imm16, an zero-extends the immediate. */
|
/* cmp imm16, an zero-extends the immediate. */
|
if (code == 0xdc
|
if (code == 0xdc
|
&& (long) value < 0)
|
&& (long) value < 0)
|
continue;
|
continue;
|
|
|
/* So do sp-based offsets. */
|
/* So do sp-based offsets. */
|
if (code >= 0xb0 && code <= 0xb3
|
if (code >= 0xb0 && code <= 0xb3
|
&& (long) value < 0)
|
&& (long) value < 0)
|
continue;
|
continue;
|
|
|
/* Note that we've changed the relocation contents, etc. */
|
/* Note that we've changed the relocation contents, etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
(ELF32_R_TYPE (irel->r_info)
|
(ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTOFF32)
|
== (int) R_MN10300_GOTOFF32)
|
? R_MN10300_GOTOFF16
|
? R_MN10300_GOTOFF16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOT32)
|
== (int) R_MN10300_GOT32)
|
? R_MN10300_GOT16
|
? R_MN10300_GOT16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTPC32)
|
== (int) R_MN10300_GOTPC32)
|
? R_MN10300_GOTPC16 :
|
? R_MN10300_GOTPC16 :
|
R_MN10300_16);
|
R_MN10300_16);
|
|
|
/* Delete two bytes of data. */
|
/* Delete two bytes of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 2, 2))
|
irel->r_offset + 2, 2))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
break;
|
break;
|
}
|
}
|
else if (code == 0xfe)
|
else if (code == 0xfe)
|
{
|
{
|
/* add imm32,sp -> add imm16,sp */
|
/* add imm32,sp -> add imm16,sp */
|
|
|
/* Note that we've changed the relocation contents, etc. */
|
/* Note that we've changed the relocation contents, etc. */
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
|
|
/* Fix the opcode. */
|
/* Fix the opcode. */
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2);
|
bfd_put_8 (abfd, 0xfe, contents + irel->r_offset - 1);
|
bfd_put_8 (abfd, 0xfe, contents + irel->r_offset - 1);
|
|
|
/* Fix the relocation's type. */
|
/* Fix the relocation's type. */
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
(ELF32_R_TYPE (irel->r_info)
|
(ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOT32)
|
== (int) R_MN10300_GOT32)
|
? R_MN10300_GOT16
|
? R_MN10300_GOT16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTOFF32)
|
== (int) R_MN10300_GOTOFF32)
|
? R_MN10300_GOTOFF16
|
? R_MN10300_GOTOFF16
|
: (ELF32_R_TYPE (irel->r_info)
|
: (ELF32_R_TYPE (irel->r_info)
|
== (int) R_MN10300_GOTPC32)
|
== (int) R_MN10300_GOTPC32)
|
? R_MN10300_GOTPC16 :
|
? R_MN10300_GOTPC16 :
|
R_MN10300_16);
|
R_MN10300_16);
|
|
|
/* Delete two bytes of data. */
|
/* Delete two bytes of data. */
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
if (!mn10300_elf_relax_delete_bytes (abfd, sec,
|
irel->r_offset + 2, 2))
|
irel->r_offset + 2, 2))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, we should relax again.
|
/* That will change things, so, we should relax again.
|
Note that this is not required, and it may be slow. */
|
Note that this is not required, and it may be slow. */
|
*again = TRUE;
|
*again = TRUE;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (isymbuf != NULL
|
if (isymbuf != NULL
|
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (isymbuf);
|
free (isymbuf);
|
else
|
else
|
{
|
{
|
/* Cache the symbols for elf_link_input_bfd. */
|
/* Cache the symbols for elf_link_input_bfd. */
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
symtab_hdr->contents = (unsigned char *) isymbuf;
|
}
|
}
|
}
|
}
|
|
|
if (contents != NULL
|
if (contents != NULL
|
&& elf_section_data (sec)->this_hdr.contents != contents)
|
&& elf_section_data (sec)->this_hdr.contents != contents)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (contents);
|
free (contents);
|
else
|
else
|
{
|
{
|
/* Cache the section contents for elf_link_input_bfd. */
|
/* Cache the section contents for elf_link_input_bfd. */
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
}
|
}
|
}
|
}
|
|
|
if (internal_relocs != NULL
|
if (internal_relocs != NULL
|
&& elf_section_data (sec)->relocs != internal_relocs)
|
&& elf_section_data (sec)->relocs != internal_relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
|
|
return TRUE;
|
return TRUE;
|
|
|
error_return:
|
error_return:
|
if (isymbuf != NULL
|
if (isymbuf != NULL
|
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
free (isymbuf);
|
free (isymbuf);
|
if (contents != NULL
|
if (contents != NULL
|
&& elf_section_data (section)->this_hdr.contents != contents)
|
&& elf_section_data (section)->this_hdr.contents != contents)
|
free (contents);
|
free (contents);
|
if (internal_relocs != NULL
|
if (internal_relocs != NULL
|
&& elf_section_data (section)->relocs != internal_relocs)
|
&& elf_section_data (section)->relocs != internal_relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
|
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* This is a version of bfd_generic_get_relocated_section_contents
|
/* This is a version of bfd_generic_get_relocated_section_contents
|
which uses mn10300_elf_relocate_section. */
|
which uses mn10300_elf_relocate_section. */
|
|
|
static bfd_byte *
|
static bfd_byte *
|
mn10300_elf_get_relocated_section_contents (bfd *output_bfd,
|
mn10300_elf_get_relocated_section_contents (bfd *output_bfd,
|
struct bfd_link_info *link_info,
|
struct bfd_link_info *link_info,
|
struct bfd_link_order *link_order,
|
struct bfd_link_order *link_order,
|
bfd_byte *data,
|
bfd_byte *data,
|
bfd_boolean relocatable,
|
bfd_boolean relocatable,
|
asymbol **symbols)
|
asymbol **symbols)
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
asection *input_section = link_order->u.indirect.section;
|
asection *input_section = link_order->u.indirect.section;
|
bfd *input_bfd = input_section->owner;
|
bfd *input_bfd = input_section->owner;
|
asection **sections = NULL;
|
asection **sections = NULL;
|
Elf_Internal_Rela *internal_relocs = NULL;
|
Elf_Internal_Rela *internal_relocs = NULL;
|
Elf_Internal_Sym *isymbuf = NULL;
|
Elf_Internal_Sym *isymbuf = NULL;
|
|
|
/* We only need to handle the case of relaxing, or of having a
|
/* We only need to handle the case of relaxing, or of having a
|
particular set of section contents, specially. */
|
particular set of section contents, specially. */
|
if (relocatable
|
if (relocatable
|
|| elf_section_data (input_section)->this_hdr.contents == NULL)
|
|| elf_section_data (input_section)->this_hdr.contents == NULL)
|
return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
|
return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
|
link_order, data,
|
link_order, data,
|
relocatable,
|
relocatable,
|
symbols);
|
symbols);
|
|
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
|
|
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
|
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
|
(size_t) input_section->size);
|
(size_t) input_section->size);
|
|
|
if ((input_section->flags & SEC_RELOC) != 0
|
if ((input_section->flags & SEC_RELOC) != 0
|
&& input_section->reloc_count > 0)
|
&& input_section->reloc_count > 0)
|
{
|
{
|
asection **secpp;
|
asection **secpp;
|
Elf_Internal_Sym *isym, *isymend;
|
Elf_Internal_Sym *isym, *isymend;
|
bfd_size_type amt;
|
bfd_size_type amt;
|
|
|
internal_relocs = _bfd_elf_link_read_relocs (input_bfd, input_section,
|
internal_relocs = _bfd_elf_link_read_relocs (input_bfd, input_section,
|
NULL, NULL, FALSE);
|
NULL, NULL, FALSE);
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
|
|
if (symtab_hdr->sh_info != 0)
|
if (symtab_hdr->sh_info != 0)
|
{
|
{
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
|
isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
|
symtab_hdr->sh_info, 0,
|
symtab_hdr->sh_info, 0,
|
NULL, NULL, NULL);
|
NULL, NULL, NULL);
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
amt = symtab_hdr->sh_info;
|
amt = symtab_hdr->sh_info;
|
amt *= sizeof (asection *);
|
amt *= sizeof (asection *);
|
sections = bfd_malloc (amt);
|
sections = bfd_malloc (amt);
|
if (sections == NULL && amt != 0)
|
if (sections == NULL && amt != 0)
|
goto error_return;
|
goto error_return;
|
|
|
isymend = isymbuf + symtab_hdr->sh_info;
|
isymend = isymbuf + symtab_hdr->sh_info;
|
for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
|
for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
|
{
|
{
|
asection *isec;
|
asection *isec;
|
|
|
if (isym->st_shndx == SHN_UNDEF)
|
if (isym->st_shndx == SHN_UNDEF)
|
isec = bfd_und_section_ptr;
|
isec = bfd_und_section_ptr;
|
else if (isym->st_shndx == SHN_ABS)
|
else if (isym->st_shndx == SHN_ABS)
|
isec = bfd_abs_section_ptr;
|
isec = bfd_abs_section_ptr;
|
else if (isym->st_shndx == SHN_COMMON)
|
else if (isym->st_shndx == SHN_COMMON)
|
isec = bfd_com_section_ptr;
|
isec = bfd_com_section_ptr;
|
else
|
else
|
isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
|
isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
|
|
|
*secpp = isec;
|
*secpp = isec;
|
}
|
}
|
|
|
if (! mn10300_elf_relocate_section (output_bfd, link_info, input_bfd,
|
if (! mn10300_elf_relocate_section (output_bfd, link_info, input_bfd,
|
input_section, data, internal_relocs,
|
input_section, data, internal_relocs,
|
isymbuf, sections))
|
isymbuf, sections))
|
goto error_return;
|
goto error_return;
|
|
|
if (sections != NULL)
|
if (sections != NULL)
|
free (sections);
|
free (sections);
|
if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
|
if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
|
free (isymbuf);
|
free (isymbuf);
|
if (internal_relocs != elf_section_data (input_section)->relocs)
|
if (internal_relocs != elf_section_data (input_section)->relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
}
|
}
|
|
|
return data;
|
return data;
|
|
|
error_return:
|
error_return:
|
if (sections != NULL)
|
if (sections != NULL)
|
free (sections);
|
free (sections);
|
if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
|
if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
|
free (isymbuf);
|
free (isymbuf);
|
if (internal_relocs != NULL
|
if (internal_relocs != NULL
|
&& internal_relocs != elf_section_data (input_section)->relocs)
|
&& internal_relocs != elf_section_data (input_section)->relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Assorted hash table functions. */
|
/* Assorted hash table functions. */
|
|
|
/* Initialize an entry in the link hash table. */
|
/* Initialize an entry in the link hash table. */
|
|
|
/* Create an entry in an MN10300 ELF linker hash table. */
|
/* Create an entry in an MN10300 ELF linker hash table. */
|
|
|
static struct bfd_hash_entry *
|
static struct bfd_hash_entry *
|
elf32_mn10300_link_hash_newfunc (struct bfd_hash_entry *entry,
|
elf32_mn10300_link_hash_newfunc (struct bfd_hash_entry *entry,
|
struct bfd_hash_table *table,
|
struct bfd_hash_table *table,
|
const char *string)
|
const char *string)
|
{
|
{
|
struct elf32_mn10300_link_hash_entry *ret =
|
struct elf32_mn10300_link_hash_entry *ret =
|
(struct elf32_mn10300_link_hash_entry *) entry;
|
(struct elf32_mn10300_link_hash_entry *) entry;
|
|
|
/* Allocate the structure if it has not already been allocated by a
|
/* Allocate the structure if it has not already been allocated by a
|
subclass. */
|
subclass. */
|
if (ret == NULL)
|
if (ret == NULL)
|
ret = (struct elf32_mn10300_link_hash_entry *)
|
ret = (struct elf32_mn10300_link_hash_entry *)
|
bfd_hash_allocate (table, sizeof (* ret));
|
bfd_hash_allocate (table, sizeof (* ret));
|
if (ret == NULL)
|
if (ret == NULL)
|
return (struct bfd_hash_entry *) ret;
|
return (struct bfd_hash_entry *) ret;
|
|
|
/* Call the allocation method of the superclass. */
|
/* Call the allocation method of the superclass. */
|
ret = (struct elf32_mn10300_link_hash_entry *)
|
ret = (struct elf32_mn10300_link_hash_entry *)
|
_bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
|
_bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
|
table, string);
|
table, string);
|
if (ret != NULL)
|
if (ret != NULL)
|
{
|
{
|
ret->direct_calls = 0;
|
ret->direct_calls = 0;
|
ret->stack_size = 0;
|
ret->stack_size = 0;
|
ret->movm_args = 0;
|
ret->movm_args = 0;
|
ret->movm_stack_size = 0;
|
ret->movm_stack_size = 0;
|
ret->flags = 0;
|
ret->flags = 0;
|
ret->value = 0;
|
ret->value = 0;
|
}
|
}
|
|
|
return (struct bfd_hash_entry *) ret;
|
return (struct bfd_hash_entry *) ret;
|
}
|
}
|
|
|
/* Create an mn10300 ELF linker hash table. */
|
/* Create an mn10300 ELF linker hash table. */
|
|
|
static struct bfd_link_hash_table *
|
static struct bfd_link_hash_table *
|
elf32_mn10300_link_hash_table_create (bfd *abfd)
|
elf32_mn10300_link_hash_table_create (bfd *abfd)
|
{
|
{
|
struct elf32_mn10300_link_hash_table *ret;
|
struct elf32_mn10300_link_hash_table *ret;
|
bfd_size_type amt = sizeof (* ret);
|
bfd_size_type amt = sizeof (* ret);
|
|
|
ret = bfd_malloc (amt);
|
ret = bfd_malloc (amt);
|
if (ret == NULL)
|
if (ret == NULL)
|
return NULL;
|
return NULL;
|
|
|
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
|
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
|
elf32_mn10300_link_hash_newfunc,
|
elf32_mn10300_link_hash_newfunc,
|
sizeof (struct elf32_mn10300_link_hash_entry)))
|
sizeof (struct elf32_mn10300_link_hash_entry)))
|
{
|
{
|
free (ret);
|
free (ret);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
ret->flags = 0;
|
ret->flags = 0;
|
amt = sizeof (struct elf_link_hash_table);
|
amt = sizeof (struct elf_link_hash_table);
|
ret->static_hash_table = bfd_malloc (amt);
|
ret->static_hash_table = bfd_malloc (amt);
|
if (ret->static_hash_table == NULL)
|
if (ret->static_hash_table == NULL)
|
{
|
{
|
free (ret);
|
free (ret);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
if (!_bfd_elf_link_hash_table_init (&ret->static_hash_table->root, abfd,
|
if (!_bfd_elf_link_hash_table_init (&ret->static_hash_table->root, abfd,
|
elf32_mn10300_link_hash_newfunc,
|
elf32_mn10300_link_hash_newfunc,
|
sizeof (struct elf32_mn10300_link_hash_entry)))
|
sizeof (struct elf32_mn10300_link_hash_entry)))
|
{
|
{
|
free (ret->static_hash_table);
|
free (ret->static_hash_table);
|
free (ret);
|
free (ret);
|
return NULL;
|
return NULL;
|
}
|
}
|
return & ret->root.root;
|
return & ret->root.root;
|
}
|
}
|
|
|
/* Free an mn10300 ELF linker hash table. */
|
/* Free an mn10300 ELF linker hash table. */
|
|
|
static void
|
static void
|
elf32_mn10300_link_hash_table_free (struct bfd_link_hash_table *hash)
|
elf32_mn10300_link_hash_table_free (struct bfd_link_hash_table *hash)
|
{
|
{
|
struct elf32_mn10300_link_hash_table *ret
|
struct elf32_mn10300_link_hash_table *ret
|
= (struct elf32_mn10300_link_hash_table *) hash;
|
= (struct elf32_mn10300_link_hash_table *) hash;
|
|
|
_bfd_generic_link_hash_table_free
|
_bfd_generic_link_hash_table_free
|
((struct bfd_link_hash_table *) ret->static_hash_table);
|
((struct bfd_link_hash_table *) ret->static_hash_table);
|
_bfd_generic_link_hash_table_free
|
_bfd_generic_link_hash_table_free
|
((struct bfd_link_hash_table *) ret);
|
((struct bfd_link_hash_table *) ret);
|
}
|
}
|
|
|
static unsigned long
|
static unsigned long
|
elf_mn10300_mach (flagword flags)
|
elf_mn10300_mach (flagword flags)
|
{
|
{
|
switch (flags & EF_MN10300_MACH)
|
switch (flags & EF_MN10300_MACH)
|
{
|
{
|
case E_MN10300_MACH_MN10300:
|
case E_MN10300_MACH_MN10300:
|
default:
|
default:
|
return bfd_mach_mn10300;
|
return bfd_mach_mn10300;
|
|
|
case E_MN10300_MACH_AM33:
|
case E_MN10300_MACH_AM33:
|
return bfd_mach_am33;
|
return bfd_mach_am33;
|
|
|
case E_MN10300_MACH_AM33_2:
|
case E_MN10300_MACH_AM33_2:
|
return bfd_mach_am33_2;
|
return bfd_mach_am33_2;
|
}
|
}
|
}
|
}
|
|
|
/* The final processing done just before writing out a MN10300 ELF object
|
/* The final processing done just before writing out a MN10300 ELF object
|
file. This gets the MN10300 architecture right based on the machine
|
file. This gets the MN10300 architecture right based on the machine
|
number. */
|
number. */
|
|
|
static void
|
static void
|
_bfd_mn10300_elf_final_write_processing (bfd *abfd,
|
_bfd_mn10300_elf_final_write_processing (bfd *abfd,
|
bfd_boolean linker ATTRIBUTE_UNUSED)
|
bfd_boolean linker ATTRIBUTE_UNUSED)
|
{
|
{
|
unsigned long val;
|
unsigned long val;
|
|
|
switch (bfd_get_mach (abfd))
|
switch (bfd_get_mach (abfd))
|
{
|
{
|
default:
|
default:
|
case bfd_mach_mn10300:
|
case bfd_mach_mn10300:
|
val = E_MN10300_MACH_MN10300;
|
val = E_MN10300_MACH_MN10300;
|
break;
|
break;
|
|
|
case bfd_mach_am33:
|
case bfd_mach_am33:
|
val = E_MN10300_MACH_AM33;
|
val = E_MN10300_MACH_AM33;
|
break;
|
break;
|
|
|
case bfd_mach_am33_2:
|
case bfd_mach_am33_2:
|
val = E_MN10300_MACH_AM33_2;
|
val = E_MN10300_MACH_AM33_2;
|
break;
|
break;
|
}
|
}
|
|
|
elf_elfheader (abfd)->e_flags &= ~ (EF_MN10300_MACH);
|
elf_elfheader (abfd)->e_flags &= ~ (EF_MN10300_MACH);
|
elf_elfheader (abfd)->e_flags |= val;
|
elf_elfheader (abfd)->e_flags |= val;
|
}
|
}
|
|
|
static bfd_boolean
|
static bfd_boolean
|
_bfd_mn10300_elf_object_p (bfd *abfd)
|
_bfd_mn10300_elf_object_p (bfd *abfd)
|
{
|
{
|
bfd_default_set_arch_mach (abfd, bfd_arch_mn10300,
|
bfd_default_set_arch_mach (abfd, bfd_arch_mn10300,
|
elf_mn10300_mach (elf_elfheader (abfd)->e_flags));
|
elf_mn10300_mach (elf_elfheader (abfd)->e_flags));
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Merge backend specific data from an object file to the output
|
/* Merge backend specific data from an object file to the output
|
object file when linking. */
|
object file when linking. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
_bfd_mn10300_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
|
_bfd_mn10300_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
|
{
|
{
|
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
return TRUE;
|
return TRUE;
|
|
|
if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
|
if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
|
&& bfd_get_mach (obfd) < bfd_get_mach (ibfd))
|
&& bfd_get_mach (obfd) < bfd_get_mach (ibfd))
|
{
|
{
|
if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
|
if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
|
bfd_get_mach (ibfd)))
|
bfd_get_mach (ibfd)))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
#define PLT0_ENTRY_SIZE 15
|
#define PLT0_ENTRY_SIZE 15
|
#define PLT_ENTRY_SIZE 20
|
#define PLT_ENTRY_SIZE 20
|
#define PIC_PLT_ENTRY_SIZE 24
|
#define PIC_PLT_ENTRY_SIZE 24
|
|
|
static const bfd_byte elf_mn10300_plt0_entry[PLT0_ENTRY_SIZE] =
|
static const bfd_byte elf_mn10300_plt0_entry[PLT0_ENTRY_SIZE] =
|
{
|
{
|
0xfc, 0xa0, 0, 0, 0, 0, /* mov (.got+8),a0 */
|
0xfc, 0xa0, 0, 0, 0, 0, /* mov (.got+8),a0 */
|
0xfe, 0xe, 0x10, 0, 0, 0, 0, /* mov (.got+4),r1 */
|
0xfe, 0xe, 0x10, 0, 0, 0, 0, /* mov (.got+4),r1 */
|
0xf0, 0xf4, /* jmp (a0) */
|
0xf0, 0xf4, /* jmp (a0) */
|
};
|
};
|
|
|
static const bfd_byte elf_mn10300_plt_entry[PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_mn10300_plt_entry[PLT_ENTRY_SIZE] =
|
{
|
{
|
0xfc, 0xa0, 0, 0, 0, 0, /* mov (nameN@GOT + .got),a0 */
|
0xfc, 0xa0, 0, 0, 0, 0, /* mov (nameN@GOT + .got),a0 */
|
0xf0, 0xf4, /* jmp (a0) */
|
0xf0, 0xf4, /* jmp (a0) */
|
0xfe, 8, 0, 0, 0, 0, 0, /* mov reloc-table-address,r0 */
|
0xfe, 8, 0, 0, 0, 0, 0, /* mov reloc-table-address,r0 */
|
0xdc, 0, 0, 0, 0, /* jmp .plt0 */
|
0xdc, 0, 0, 0, 0, /* jmp .plt0 */
|
};
|
};
|
|
|
static const bfd_byte elf_mn10300_pic_plt_entry[PIC_PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_mn10300_pic_plt_entry[PIC_PLT_ENTRY_SIZE] =
|
{
|
{
|
0xfc, 0x22, 0, 0, 0, 0, /* mov (nameN@GOT,a2),a0 */
|
0xfc, 0x22, 0, 0, 0, 0, /* mov (nameN@GOT,a2),a0 */
|
0xf0, 0xf4, /* jmp (a0) */
|
0xf0, 0xf4, /* jmp (a0) */
|
0xfe, 8, 0, 0, 0, 0, 0, /* mov reloc-table-address,r0 */
|
0xfe, 8, 0, 0, 0, 0, 0, /* mov reloc-table-address,r0 */
|
0xf8, 0x22, 8, /* mov (8,a2),a0 */
|
0xf8, 0x22, 8, /* mov (8,a2),a0 */
|
0xfb, 0xa, 0x1a, 4, /* mov (4,a2),r1 */
|
0xfb, 0xa, 0x1a, 4, /* mov (4,a2),r1 */
|
0xf0, 0xf4, /* jmp (a0) */
|
0xf0, 0xf4, /* jmp (a0) */
|
};
|
};
|
|
|
/* Return size of the first PLT entry. */
|
/* Return size of the first PLT entry. */
|
#define elf_mn10300_sizeof_plt0(info) \
|
#define elf_mn10300_sizeof_plt0(info) \
|
(info->shared ? PIC_PLT_ENTRY_SIZE : PLT0_ENTRY_SIZE)
|
(info->shared ? PIC_PLT_ENTRY_SIZE : PLT0_ENTRY_SIZE)
|
|
|
/* Return size of a PLT entry. */
|
/* Return size of a PLT entry. */
|
#define elf_mn10300_sizeof_plt(info) \
|
#define elf_mn10300_sizeof_plt(info) \
|
(info->shared ? PIC_PLT_ENTRY_SIZE : PLT_ENTRY_SIZE)
|
(info->shared ? PIC_PLT_ENTRY_SIZE : PLT_ENTRY_SIZE)
|
|
|
/* Return offset of the PLT0 address in an absolute PLT entry. */
|
/* Return offset of the PLT0 address in an absolute PLT entry. */
|
#define elf_mn10300_plt_plt0_offset(info) 16
|
#define elf_mn10300_plt_plt0_offset(info) 16
|
|
|
/* Return offset of the linker in PLT0 entry. */
|
/* Return offset of the linker in PLT0 entry. */
|
#define elf_mn10300_plt0_linker_offset(info) 2
|
#define elf_mn10300_plt0_linker_offset(info) 2
|
|
|
/* Return offset of the GOT id in PLT0 entry. */
|
/* Return offset of the GOT id in PLT0 entry. */
|
#define elf_mn10300_plt0_gotid_offset(info) 9
|
#define elf_mn10300_plt0_gotid_offset(info) 9
|
|
|
/* Return offset of the temporary in PLT entry. */
|
/* Return offset of the temporary in PLT entry. */
|
#define elf_mn10300_plt_temp_offset(info) 8
|
#define elf_mn10300_plt_temp_offset(info) 8
|
|
|
/* Return offset of the symbol in PLT entry. */
|
/* Return offset of the symbol in PLT entry. */
|
#define elf_mn10300_plt_symbol_offset(info) 2
|
#define elf_mn10300_plt_symbol_offset(info) 2
|
|
|
/* Return offset of the relocation in PLT entry. */
|
/* Return offset of the relocation in PLT entry. */
|
#define elf_mn10300_plt_reloc_offset(info) 11
|
#define elf_mn10300_plt_reloc_offset(info) 11
|
|
|
/* The name of the dynamic interpreter. This is put in the .interp
|
/* The name of the dynamic interpreter. This is put in the .interp
|
section. */
|
section. */
|
|
|
#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
|
#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
|
|
|
/* Create dynamic sections when linking against a dynamic object. */
|
/* Create dynamic sections when linking against a dynamic object. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
_bfd_mn10300_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
|
_bfd_mn10300_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
|
{
|
{
|
flagword flags;
|
flagword flags;
|
asection * s;
|
asection * s;
|
const struct elf_backend_data * bed = get_elf_backend_data (abfd);
|
const struct elf_backend_data * bed = get_elf_backend_data (abfd);
|
int ptralign = 0;
|
int ptralign = 0;
|
|
|
switch (bed->s->arch_size)
|
switch (bed->s->arch_size)
|
{
|
{
|
case 32:
|
case 32:
|
ptralign = 2;
|
ptralign = 2;
|
break;
|
break;
|
|
|
case 64:
|
case 64:
|
ptralign = 3;
|
ptralign = 3;
|
break;
|
break;
|
|
|
default:
|
default:
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
|
/* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
|
.rel[a].bss sections. */
|
.rel[a].bss sections. */
|
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
|
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
|
| SEC_LINKER_CREATED);
|
| SEC_LINKER_CREATED);
|
|
|
s = bfd_make_section_with_flags (abfd,
|
s = bfd_make_section_with_flags (abfd,
|
(bed->default_use_rela_p
|
(bed->default_use_rela_p
|
? ".rela.plt" : ".rel.plt"),
|
? ".rela.plt" : ".rel.plt"),
|
flags | SEC_READONLY);
|
flags | SEC_READONLY);
|
if (s == NULL
|
if (s == NULL
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
return FALSE;
|
return FALSE;
|
|
|
if (! _bfd_mn10300_elf_create_got_section (abfd, info))
|
if (! _bfd_mn10300_elf_create_got_section (abfd, info))
|
return FALSE;
|
return FALSE;
|
|
|
{
|
{
|
const char * secname;
|
const char * secname;
|
char * relname;
|
char * relname;
|
flagword secflags;
|
flagword secflags;
|
asection * sec;
|
asection * sec;
|
|
|
for (sec = abfd->sections; sec; sec = sec->next)
|
for (sec = abfd->sections; sec; sec = sec->next)
|
{
|
{
|
secflags = bfd_get_section_flags (abfd, sec);
|
secflags = bfd_get_section_flags (abfd, sec);
|
if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
|
if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
|
|| ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
|
|| ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
|
continue;
|
continue;
|
|
|
secname = bfd_get_section_name (abfd, sec);
|
secname = bfd_get_section_name (abfd, sec);
|
relname = bfd_malloc (strlen (secname) + 6);
|
relname = bfd_malloc (strlen (secname) + 6);
|
strcpy (relname, ".rela");
|
strcpy (relname, ".rela");
|
strcat (relname, secname);
|
strcat (relname, secname);
|
|
|
s = bfd_make_section_with_flags (abfd, relname,
|
s = bfd_make_section_with_flags (abfd, relname,
|
flags | SEC_READONLY);
|
flags | SEC_READONLY);
|
if (s == NULL
|
if (s == NULL
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
if (bed->want_dynbss)
|
if (bed->want_dynbss)
|
{
|
{
|
/* The .dynbss section is a place to put symbols which are defined
|
/* The .dynbss section is a place to put symbols which are defined
|
by dynamic objects, are referenced by regular objects, and are
|
by dynamic objects, are referenced by regular objects, and are
|
not functions. We must allocate space for them in the process
|
not functions. We must allocate space for them in the process
|
image and use a R_*_COPY reloc to tell the dynamic linker to
|
image and use a R_*_COPY reloc to tell the dynamic linker to
|
initialize them at run time. The linker script puts the .dynbss
|
initialize them at run time. The linker script puts the .dynbss
|
section into the .bss section of the final image. */
|
section into the .bss section of the final image. */
|
s = bfd_make_section_with_flags (abfd, ".dynbss",
|
s = bfd_make_section_with_flags (abfd, ".dynbss",
|
SEC_ALLOC | SEC_LINKER_CREATED);
|
SEC_ALLOC | SEC_LINKER_CREATED);
|
if (s == NULL)
|
if (s == NULL)
|
return FALSE;
|
return FALSE;
|
|
|
/* The .rel[a].bss section holds copy relocs. This section is not
|
/* The .rel[a].bss section holds copy relocs. This section is not
|
normally needed. We need to create it here, though, so that the
|
normally needed. We need to create it here, though, so that the
|
linker will map it to an output section. We can't just create it
|
linker will map it to an output section. We can't just create it
|
only if we need it, because we will not know whether we need it
|
only if we need it, because we will not know whether we need it
|
until we have seen all the input files, and the first time the
|
until we have seen all the input files, and the first time the
|
main linker code calls BFD after examining all the input files
|
main linker code calls BFD after examining all the input files
|
(size_dynamic_sections) the input sections have already been
|
(size_dynamic_sections) the input sections have already been
|
mapped to the output sections. If the section turns out not to
|
mapped to the output sections. If the section turns out not to
|
be needed, we can discard it later. We will never need this
|
be needed, we can discard it later. We will never need this
|
section when generating a shared object, since they do not use
|
section when generating a shared object, since they do not use
|
copy relocs. */
|
copy relocs. */
|
if (! info->shared)
|
if (! info->shared)
|
{
|
{
|
s = bfd_make_section_with_flags (abfd,
|
s = bfd_make_section_with_flags (abfd,
|
(bed->default_use_rela_p
|
(bed->default_use_rela_p
|
? ".rela.bss" : ".rel.bss"),
|
? ".rela.bss" : ".rel.bss"),
|
flags | SEC_READONLY);
|
flags | SEC_READONLY);
|
if (s == NULL
|
if (s == NULL
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
|| ! bfd_set_section_alignment (abfd, s, ptralign))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
regular object. The current definition is in some section of the
|
regular object. The current definition is in some section of the
|
dynamic object, but we're not including those sections. We have to
|
dynamic object, but we're not including those sections. We have to
|
change the definition to something the rest of the link can
|
change the definition to something the rest of the link can
|
understand. */
|
understand. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
_bfd_mn10300_elf_adjust_dynamic_symbol (struct bfd_link_info * info,
|
_bfd_mn10300_elf_adjust_dynamic_symbol (struct bfd_link_info * info,
|
struct elf_link_hash_entry * h)
|
struct elf_link_hash_entry * h)
|
{
|
{
|
bfd * dynobj;
|
bfd * dynobj;
|
asection * s;
|
asection * s;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
/* Make sure we know what is going on here. */
|
/* Make sure we know what is going on here. */
|
BFD_ASSERT (dynobj != NULL
|
BFD_ASSERT (dynobj != NULL
|
&& (h->needs_plt
|
&& (h->needs_plt
|
|| h->u.weakdef != NULL
|
|| h->u.weakdef != NULL
|
|| (h->def_dynamic
|
|| (h->def_dynamic
|
&& h->ref_regular
|
&& h->ref_regular
|
&& !h->def_regular)));
|
&& !h->def_regular)));
|
|
|
/* If this is a function, put it in the procedure linkage table. We
|
/* If this is a function, put it in the procedure linkage table. We
|
will fill in the contents of the procedure linkage table later,
|
will fill in the contents of the procedure linkage table later,
|
when we know the address of the .got section. */
|
when we know the address of the .got section. */
|
if (h->type == STT_FUNC
|
if (h->type == STT_FUNC
|
|| h->needs_plt)
|
|| h->needs_plt)
|
{
|
{
|
if (! info->shared
|
if (! info->shared
|
&& !h->def_dynamic
|
&& !h->def_dynamic
|
&& !h->ref_dynamic)
|
&& !h->ref_dynamic)
|
{
|
{
|
/* This case can occur if we saw a PLT reloc in an input
|
/* This case can occur if we saw a PLT reloc in an input
|
file, but the symbol was never referred to by a dynamic
|
file, but the symbol was never referred to by a dynamic
|
object. In such a case, we don't actually need to build
|
object. In such a case, we don't actually need to build
|
a procedure linkage table, and we can just do a REL32
|
a procedure linkage table, and we can just do a REL32
|
reloc instead. */
|
reloc instead. */
|
BFD_ASSERT (h->needs_plt);
|
BFD_ASSERT (h->needs_plt);
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Make sure this symbol is output as a dynamic symbol. */
|
/* Make sure this symbol is output as a dynamic symbol. */
|
if (h->dynindx == -1)
|
if (h->dynindx == -1)
|
{
|
{
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
s = bfd_get_section_by_name (dynobj, ".plt");
|
s = bfd_get_section_by_name (dynobj, ".plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
/* If this is the first .plt entry, make room for the special
|
/* If this is the first .plt entry, make room for the special
|
first entry. */
|
first entry. */
|
if (s->size == 0)
|
if (s->size == 0)
|
s->size += elf_mn10300_sizeof_plt0 (info);
|
s->size += elf_mn10300_sizeof_plt0 (info);
|
|
|
/* If this symbol is not defined in a regular file, and we are
|
/* If this symbol is not defined in a regular file, and we are
|
not generating a shared library, then set the symbol to this
|
not generating a shared library, then set the symbol to this
|
location in the .plt. This is required to make function
|
location in the .plt. This is required to make function
|
pointers compare as equal between the normal executable and
|
pointers compare as equal between the normal executable and
|
the shared library. */
|
the shared library. */
|
if (! info->shared
|
if (! info->shared
|
&& !h->def_regular)
|
&& !h->def_regular)
|
{
|
{
|
h->root.u.def.section = s;
|
h->root.u.def.section = s;
|
h->root.u.def.value = s->size;
|
h->root.u.def.value = s->size;
|
}
|
}
|
|
|
h->plt.offset = s->size;
|
h->plt.offset = s->size;
|
|
|
/* Make room for this entry. */
|
/* Make room for this entry. */
|
s->size += elf_mn10300_sizeof_plt (info);
|
s->size += elf_mn10300_sizeof_plt (info);
|
|
|
/* We also need to make an entry in the .got.plt section, which
|
/* We also need to make an entry in the .got.plt section, which
|
will be placed in the .got section by the linker script. */
|
will be placed in the .got section by the linker script. */
|
s = bfd_get_section_by_name (dynobj, ".got.plt");
|
s = bfd_get_section_by_name (dynobj, ".got.plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
s->size += 4;
|
s->size += 4;
|
|
|
/* We also need to make an entry in the .rela.plt section. */
|
/* We also need to make an entry in the .rela.plt section. */
|
s = bfd_get_section_by_name (dynobj, ".rela.plt");
|
s = bfd_get_section_by_name (dynobj, ".rela.plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
s->size += sizeof (Elf32_External_Rela);
|
s->size += sizeof (Elf32_External_Rela);
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* If this is a weak symbol, and there is a real definition, the
|
/* If this is a weak symbol, and there is a real definition, the
|
processor independent code will have arranged for us to see the
|
processor independent code will have arranged for us to see the
|
real definition first, and we can just use the same value. */
|
real definition first, and we can just use the same value. */
|
if (h->u.weakdef != NULL)
|
if (h->u.weakdef != NULL)
|
{
|
{
|
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* This is a reference to a symbol defined by a dynamic object which
|
/* This is a reference to a symbol defined by a dynamic object which
|
is not a function. */
|
is not a function. */
|
|
|
/* If we are creating a shared library, we must presume that the
|
/* If we are creating a shared library, we must presume that the
|
only references to the symbol are via the global offset table.
|
only references to the symbol are via the global offset table.
|
For such cases we need not do anything here; the relocations will
|
For such cases we need not do anything here; the relocations will
|
be handled correctly by relocate_section. */
|
be handled correctly by relocate_section. */
|
if (info->shared)
|
if (info->shared)
|
return TRUE;
|
return TRUE;
|
|
|
/* If there are no references to this symbol that do not use the
|
/* If there are no references to this symbol that do not use the
|
GOT, we don't need to generate a copy reloc. */
|
GOT, we don't need to generate a copy reloc. */
|
if (!h->non_got_ref)
|
if (!h->non_got_ref)
|
return TRUE;
|
return TRUE;
|
|
|
if (h->size == 0)
|
if (h->size == 0)
|
{
|
{
|
(*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
|
(*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
|
h->root.root.string);
|
h->root.root.string);
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* We must allocate the symbol in our .dynbss section, which will
|
/* We must allocate the symbol in our .dynbss section, which will
|
become part of the .bss section of the executable. There will be
|
become part of the .bss section of the executable. There will be
|
an entry for this symbol in the .dynsym section. The dynamic
|
an entry for this symbol in the .dynsym section. The dynamic
|
object will contain position independent code, so all references
|
object will contain position independent code, so all references
|
from the dynamic object to this symbol will go through the global
|
from the dynamic object to this symbol will go through the global
|
offset table. The dynamic linker will use the .dynsym entry to
|
offset table. The dynamic linker will use the .dynsym entry to
|
determine the address it must put in the global offset table, so
|
determine the address it must put in the global offset table, so
|
both the dynamic object and the regular object will refer to the
|
both the dynamic object and the regular object will refer to the
|
same memory location for the variable. */
|
same memory location for the variable. */
|
|
|
s = bfd_get_section_by_name (dynobj, ".dynbss");
|
s = bfd_get_section_by_name (dynobj, ".dynbss");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
/* We must generate a R_MN10300_COPY reloc to tell the dynamic linker to
|
/* We must generate a R_MN10300_COPY reloc to tell the dynamic linker to
|
copy the initial value out of the dynamic object and into the
|
copy the initial value out of the dynamic object and into the
|
runtime process image. We need to remember the offset into the
|
runtime process image. We need to remember the offset into the
|
.rela.bss section we are going to use. */
|
.rela.bss section we are going to use. */
|
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
|
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
|
{
|
{
|
asection * srel;
|
asection * srel;
|
|
|
srel = bfd_get_section_by_name (dynobj, ".rela.bss");
|
srel = bfd_get_section_by_name (dynobj, ".rela.bss");
|
BFD_ASSERT (srel != NULL);
|
BFD_ASSERT (srel != NULL);
|
srel->size += sizeof (Elf32_External_Rela);
|
srel->size += sizeof (Elf32_External_Rela);
|
h->needs_copy = 1;
|
h->needs_copy = 1;
|
}
|
}
|
|
|
return _bfd_elf_adjust_dynamic_copy (h, s);
|
return _bfd_elf_adjust_dynamic_copy (h, s);
|
}
|
}
|
|
|
/* Set the sizes of the dynamic sections. */
|
/* Set the sizes of the dynamic sections. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
_bfd_mn10300_elf_size_dynamic_sections (bfd * output_bfd,
|
_bfd_mn10300_elf_size_dynamic_sections (bfd * output_bfd,
|
struct bfd_link_info * info)
|
struct bfd_link_info * info)
|
{
|
{
|
bfd * dynobj;
|
bfd * dynobj;
|
asection * s;
|
asection * s;
|
bfd_boolean plt;
|
bfd_boolean plt;
|
bfd_boolean relocs;
|
bfd_boolean relocs;
|
bfd_boolean reltext;
|
bfd_boolean reltext;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
BFD_ASSERT (dynobj != NULL);
|
BFD_ASSERT (dynobj != NULL);
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
if (elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
/* Set the contents of the .interp section to the interpreter. */
|
/* Set the contents of the .interp section to the interpreter. */
|
if (info->executable)
|
if (info->executable)
|
{
|
{
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
|
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
|
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
|
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* We may have created entries in the .rela.got section.
|
/* We may have created entries in the .rela.got section.
|
However, if we are not creating the dynamic sections, we will
|
However, if we are not creating the dynamic sections, we will
|
not actually use these entries. Reset the size of .rela.got,
|
not actually use these entries. Reset the size of .rela.got,
|
which will cause it to get stripped from the output file
|
which will cause it to get stripped from the output file
|
below. */
|
below. */
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
if (s != NULL)
|
if (s != NULL)
|
s->size = 0;
|
s->size = 0;
|
}
|
}
|
|
|
/* The check_relocs and adjust_dynamic_symbol entry points have
|
/* The check_relocs and adjust_dynamic_symbol entry points have
|
determined the sizes of the various dynamic sections. Allocate
|
determined the sizes of the various dynamic sections. Allocate
|
memory for them. */
|
memory for them. */
|
plt = FALSE;
|
plt = FALSE;
|
relocs = FALSE;
|
relocs = FALSE;
|
reltext = FALSE;
|
reltext = FALSE;
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
{
|
{
|
const char * name;
|
const char * name;
|
|
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
continue;
|
continue;
|
|
|
/* It's OK to base decisions on the section name, because none
|
/* It's OK to base decisions on the section name, because none
|
of the dynobj section names depend upon the input files. */
|
of the dynobj section names depend upon the input files. */
|
name = bfd_get_section_name (dynobj, s);
|
name = bfd_get_section_name (dynobj, s);
|
|
|
if (streq (name, ".plt"))
|
if (streq (name, ".plt"))
|
{
|
{
|
/* Remember whether there is a PLT. */
|
/* Remember whether there is a PLT. */
|
plt = s->size != 0;
|
plt = s->size != 0;
|
}
|
}
|
else if (CONST_STRNEQ (name, ".rela"))
|
else if (CONST_STRNEQ (name, ".rela"))
|
{
|
{
|
if (s->size != 0)
|
if (s->size != 0)
|
{
|
{
|
asection * target;
|
asection * target;
|
|
|
/* Remember whether there are any reloc sections other
|
/* Remember whether there are any reloc sections other
|
than .rela.plt. */
|
than .rela.plt. */
|
if (! streq (name, ".rela.plt"))
|
if (! streq (name, ".rela.plt"))
|
{
|
{
|
const char * outname;
|
const char * outname;
|
|
|
relocs = TRUE;
|
relocs = TRUE;
|
|
|
/* If this relocation section applies to a read only
|
/* If this relocation section applies to a read only
|
section, then we probably need a DT_TEXTREL
|
section, then we probably need a DT_TEXTREL
|
entry. The entries in the .rela.plt section
|
entry. The entries in the .rela.plt section
|
really apply to the .got section, which we
|
really apply to the .got section, which we
|
created ourselves and so know is not readonly. */
|
created ourselves and so know is not readonly. */
|
outname = bfd_get_section_name (output_bfd,
|
outname = bfd_get_section_name (output_bfd,
|
s->output_section);
|
s->output_section);
|
target = bfd_get_section_by_name (output_bfd, outname + 5);
|
target = bfd_get_section_by_name (output_bfd, outname + 5);
|
if (target != NULL
|
if (target != NULL
|
&& (target->flags & SEC_READONLY) != 0
|
&& (target->flags & SEC_READONLY) != 0
|
&& (target->flags & SEC_ALLOC) != 0)
|
&& (target->flags & SEC_ALLOC) != 0)
|
reltext = TRUE;
|
reltext = TRUE;
|
}
|
}
|
|
|
/* We use the reloc_count field as a counter if we need
|
/* We use the reloc_count field as a counter if we need
|
to copy relocs into the output file. */
|
to copy relocs into the output file. */
|
s->reloc_count = 0;
|
s->reloc_count = 0;
|
}
|
}
|
}
|
}
|
else if (! CONST_STRNEQ (name, ".got")
|
else if (! CONST_STRNEQ (name, ".got")
|
&& ! streq (name, ".dynbss"))
|
&& ! streq (name, ".dynbss"))
|
/* It's not one of our sections, so don't allocate space. */
|
/* It's not one of our sections, so don't allocate space. */
|
continue;
|
continue;
|
|
|
if (s->size == 0)
|
if (s->size == 0)
|
{
|
{
|
/* If we don't need this section, strip it from the
|
/* If we don't need this section, strip it from the
|
output file. This is mostly to handle .rela.bss and
|
output file. This is mostly to handle .rela.bss and
|
.rela.plt. We must create both sections in
|
.rela.plt. We must create both sections in
|
create_dynamic_sections, because they must be created
|
create_dynamic_sections, because they must be created
|
before the linker maps input sections to output
|
before the linker maps input sections to output
|
sections. The linker does that before
|
sections. The linker does that before
|
adjust_dynamic_symbol is called, and it is that
|
adjust_dynamic_symbol is called, and it is that
|
function which decides whether anything needs to go
|
function which decides whether anything needs to go
|
into these sections. */
|
into these sections. */
|
s->flags |= SEC_EXCLUDE;
|
s->flags |= SEC_EXCLUDE;
|
continue;
|
continue;
|
}
|
}
|
|
|
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
continue;
|
continue;
|
|
|
/* Allocate memory for the section contents. We use bfd_zalloc
|
/* Allocate memory for the section contents. We use bfd_zalloc
|
here in case unused entries are not reclaimed before the
|
here in case unused entries are not reclaimed before the
|
section's contents are written out. This should not happen,
|
section's contents are written out. This should not happen,
|
but this way if it does, we get a R_MN10300_NONE reloc
|
but this way if it does, we get a R_MN10300_NONE reloc
|
instead of garbage. */
|
instead of garbage. */
|
s->contents = bfd_zalloc (dynobj, s->size);
|
s->contents = bfd_zalloc (dynobj, s->size);
|
if (s->contents == NULL)
|
if (s->contents == NULL)
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
if (elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
/* Add some entries to the .dynamic section. We fill in the
|
/* Add some entries to the .dynamic section. We fill in the
|
values later, in _bfd_mn10300_elf_finish_dynamic_sections,
|
values later, in _bfd_mn10300_elf_finish_dynamic_sections,
|
but we must add the entries now so that we get the correct
|
but we must add the entries now so that we get the correct
|
size for the .dynamic section. The DT_DEBUG entry is filled
|
size for the .dynamic section. The DT_DEBUG entry is filled
|
in by the dynamic linker and used by the debugger. */
|
in by the dynamic linker and used by the debugger. */
|
if (! info->shared)
|
if (! info->shared)
|
{
|
{
|
if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
|
if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (plt)
|
if (plt)
|
{
|
{
|
if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
|
if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
|
|| !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
|
|| !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
|
|| !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
|
|| !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
|
|| !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
|
|| !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (relocs)
|
if (relocs)
|
{
|
{
|
if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
|
if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
|
|| !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
|
|| !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
|
|| !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
|
|| !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
|
sizeof (Elf32_External_Rela)))
|
sizeof (Elf32_External_Rela)))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (reltext)
|
if (reltext)
|
{
|
{
|
if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
|
if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Finish up dynamic symbol handling. We set the contents of various
|
/* Finish up dynamic symbol handling. We set the contents of various
|
dynamic sections here. */
|
dynamic sections here. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
_bfd_mn10300_elf_finish_dynamic_symbol (bfd * output_bfd,
|
_bfd_mn10300_elf_finish_dynamic_symbol (bfd * output_bfd,
|
struct bfd_link_info * info,
|
struct bfd_link_info * info,
|
struct elf_link_hash_entry * h,
|
struct elf_link_hash_entry * h,
|
Elf_Internal_Sym * sym)
|
Elf_Internal_Sym * sym)
|
{
|
{
|
bfd * dynobj;
|
bfd * dynobj;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
if (h->plt.offset != (bfd_vma) -1)
|
if (h->plt.offset != (bfd_vma) -1)
|
{
|
{
|
asection * splt;
|
asection * splt;
|
asection * sgot;
|
asection * sgot;
|
asection * srel;
|
asection * srel;
|
bfd_vma plt_index;
|
bfd_vma plt_index;
|
bfd_vma got_offset;
|
bfd_vma got_offset;
|
Elf_Internal_Rela rel;
|
Elf_Internal_Rela rel;
|
|
|
/* This symbol has an entry in the procedure linkage table. Set
|
/* This symbol has an entry in the procedure linkage table. Set
|
it up. */
|
it up. */
|
|
|
BFD_ASSERT (h->dynindx != -1);
|
BFD_ASSERT (h->dynindx != -1);
|
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
srel = bfd_get_section_by_name (dynobj, ".rela.plt");
|
srel = bfd_get_section_by_name (dynobj, ".rela.plt");
|
BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
|
BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
|
|
|
/* Get the index in the procedure linkage table which
|
/* Get the index in the procedure linkage table which
|
corresponds to this symbol. This is the index of this symbol
|
corresponds to this symbol. This is the index of this symbol
|
in all the symbols for which we are making plt entries. The
|
in all the symbols for which we are making plt entries. The
|
first entry in the procedure linkage table is reserved. */
|
first entry in the procedure linkage table is reserved. */
|
plt_index = ((h->plt.offset - elf_mn10300_sizeof_plt0 (info))
|
plt_index = ((h->plt.offset - elf_mn10300_sizeof_plt0 (info))
|
/ elf_mn10300_sizeof_plt (info));
|
/ elf_mn10300_sizeof_plt (info));
|
|
|
/* Get the offset into the .got table of the entry that
|
/* Get the offset into the .got table of the entry that
|
corresponds to this function. Each .got entry is 4 bytes.
|
corresponds to this function. Each .got entry is 4 bytes.
|
The first three are reserved. */
|
The first three are reserved. */
|
got_offset = (plt_index + 3) * 4;
|
got_offset = (plt_index + 3) * 4;
|
|
|
/* Fill in the entry in the procedure linkage table. */
|
/* Fill in the entry in the procedure linkage table. */
|
if (! info->shared)
|
if (! info->shared)
|
{
|
{
|
memcpy (splt->contents + h->plt.offset, elf_mn10300_plt_entry,
|
memcpy (splt->contents + h->plt.offset, elf_mn10300_plt_entry,
|
elf_mn10300_sizeof_plt (info));
|
elf_mn10300_sizeof_plt (info));
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(sgot->output_section->vma
|
(sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ got_offset),
|
+ got_offset),
|
(splt->contents + h->plt.offset
|
(splt->contents + h->plt.offset
|
+ elf_mn10300_plt_symbol_offset (info)));
|
+ elf_mn10300_plt_symbol_offset (info)));
|
|
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(1 - h->plt.offset - elf_mn10300_plt_plt0_offset (info)),
|
(1 - h->plt.offset - elf_mn10300_plt_plt0_offset (info)),
|
(splt->contents + h->plt.offset
|
(splt->contents + h->plt.offset
|
+ elf_mn10300_plt_plt0_offset (info)));
|
+ elf_mn10300_plt_plt0_offset (info)));
|
}
|
}
|
else
|
else
|
{
|
{
|
memcpy (splt->contents + h->plt.offset, elf_mn10300_pic_plt_entry,
|
memcpy (splt->contents + h->plt.offset, elf_mn10300_pic_plt_entry,
|
elf_mn10300_sizeof_plt (info));
|
elf_mn10300_sizeof_plt (info));
|
|
|
bfd_put_32 (output_bfd, got_offset,
|
bfd_put_32 (output_bfd, got_offset,
|
(splt->contents + h->plt.offset
|
(splt->contents + h->plt.offset
|
+ elf_mn10300_plt_symbol_offset (info)));
|
+ elf_mn10300_plt_symbol_offset (info)));
|
}
|
}
|
|
|
bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
|
bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
|
(splt->contents + h->plt.offset
|
(splt->contents + h->plt.offset
|
+ elf_mn10300_plt_reloc_offset (info)));
|
+ elf_mn10300_plt_reloc_offset (info)));
|
|
|
/* Fill in the entry in the global offset table. */
|
/* Fill in the entry in the global offset table. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(splt->output_section->vma
|
(splt->output_section->vma
|
+ splt->output_offset
|
+ splt->output_offset
|
+ h->plt.offset
|
+ h->plt.offset
|
+ elf_mn10300_plt_temp_offset (info)),
|
+ elf_mn10300_plt_temp_offset (info)),
|
sgot->contents + got_offset);
|
sgot->contents + got_offset);
|
|
|
/* Fill in the entry in the .rela.plt section. */
|
/* Fill in the entry in the .rela.plt section. */
|
rel.r_offset = (sgot->output_section->vma
|
rel.r_offset = (sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ got_offset);
|
+ got_offset);
|
rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_JMP_SLOT);
|
rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_JMP_SLOT);
|
rel.r_addend = 0;
|
rel.r_addend = 0;
|
bfd_elf32_swap_reloca_out (output_bfd, &rel,
|
bfd_elf32_swap_reloca_out (output_bfd, &rel,
|
(bfd_byte *) ((Elf32_External_Rela *) srel->contents
|
(bfd_byte *) ((Elf32_External_Rela *) srel->contents
|
+ plt_index));
|
+ plt_index));
|
|
|
if (!h->def_regular)
|
if (!h->def_regular)
|
/* Mark the symbol as undefined, rather than as defined in
|
/* Mark the symbol as undefined, rather than as defined in
|
the .plt section. Leave the value alone. */
|
the .plt section. Leave the value alone. */
|
sym->st_shndx = SHN_UNDEF;
|
sym->st_shndx = SHN_UNDEF;
|
}
|
}
|
|
|
if (h->got.offset != (bfd_vma) -1)
|
if (h->got.offset != (bfd_vma) -1)
|
{
|
{
|
asection * sgot;
|
asection * sgot;
|
asection * srel;
|
asection * srel;
|
Elf_Internal_Rela rel;
|
Elf_Internal_Rela rel;
|
|
|
/* This symbol has an entry in the global offset table. Set it up. */
|
/* This symbol has an entry in the global offset table. Set it up. */
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
srel = bfd_get_section_by_name (dynobj, ".rela.got");
|
srel = bfd_get_section_by_name (dynobj, ".rela.got");
|
BFD_ASSERT (sgot != NULL && srel != NULL);
|
BFD_ASSERT (sgot != NULL && srel != NULL);
|
|
|
rel.r_offset = (sgot->output_section->vma
|
rel.r_offset = (sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ (h->got.offset & ~1));
|
+ (h->got.offset & ~1));
|
|
|
/* If this is a -Bsymbolic link, and the symbol is defined
|
/* If this is a -Bsymbolic link, and the symbol is defined
|
locally, we just want to emit a RELATIVE reloc. Likewise if
|
locally, we just want to emit a RELATIVE reloc. Likewise if
|
the symbol was forced to be local because of a version file.
|
the symbol was forced to be local because of a version file.
|
The entry in the global offset table will already have been
|
The entry in the global offset table will already have been
|
initialized in the relocate_section function. */
|
initialized in the relocate_section function. */
|
if (info->shared
|
if (info->shared
|
&& (info->symbolic || h->dynindx == -1)
|
&& (info->symbolic || h->dynindx == -1)
|
&& h->def_regular)
|
&& h->def_regular)
|
{
|
{
|
rel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE);
|
rel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE);
|
rel.r_addend = (h->root.u.def.value
|
rel.r_addend = (h->root.u.def.value
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_offset);
|
+ h->root.u.def.section->output_offset);
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
|
rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_GLOB_DAT);
|
rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_GLOB_DAT);
|
rel.r_addend = 0;
|
rel.r_addend = 0;
|
}
|
}
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rel,
|
bfd_elf32_swap_reloca_out (output_bfd, &rel,
|
(bfd_byte *) ((Elf32_External_Rela *) srel->contents
|
(bfd_byte *) ((Elf32_External_Rela *) srel->contents
|
+ srel->reloc_count));
|
+ srel->reloc_count));
|
++ srel->reloc_count;
|
++ srel->reloc_count;
|
}
|
}
|
|
|
if (h->needs_copy)
|
if (h->needs_copy)
|
{
|
{
|
asection * s;
|
asection * s;
|
Elf_Internal_Rela rel;
|
Elf_Internal_Rela rel;
|
|
|
/* This symbol needs a copy reloc. Set it up. */
|
/* This symbol needs a copy reloc. Set it up. */
|
BFD_ASSERT (h->dynindx != -1
|
BFD_ASSERT (h->dynindx != -1
|
&& (h->root.type == bfd_link_hash_defined
|
&& (h->root.type == bfd_link_hash_defined
|
|| h->root.type == bfd_link_hash_defweak));
|
|| h->root.type == bfd_link_hash_defweak));
|
|
|
s = bfd_get_section_by_name (h->root.u.def.section->owner,
|
s = bfd_get_section_by_name (h->root.u.def.section->owner,
|
".rela.bss");
|
".rela.bss");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
rel.r_offset = (h->root.u.def.value
|
rel.r_offset = (h->root.u.def.value
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_offset);
|
+ h->root.u.def.section->output_offset);
|
rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_COPY);
|
rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_COPY);
|
rel.r_addend = 0;
|
rel.r_addend = 0;
|
bfd_elf32_swap_reloca_out (output_bfd, & rel,
|
bfd_elf32_swap_reloca_out (output_bfd, & rel,
|
(bfd_byte *) ((Elf32_External_Rela *) s->contents
|
(bfd_byte *) ((Elf32_External_Rela *) s->contents
|
+ s->reloc_count));
|
+ s->reloc_count));
|
++ s->reloc_count;
|
++ s->reloc_count;
|
}
|
}
|
|
|
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
|
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
|
if (streq (h->root.root.string, "_DYNAMIC")
|
if (streq (h->root.root.string, "_DYNAMIC")
|
|| h == elf_hash_table (info)->hgot)
|
|| h == elf_hash_table (info)->hgot)
|
sym->st_shndx = SHN_ABS;
|
sym->st_shndx = SHN_ABS;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Finish up the dynamic sections. */
|
/* Finish up the dynamic sections. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
_bfd_mn10300_elf_finish_dynamic_sections (bfd * output_bfd,
|
_bfd_mn10300_elf_finish_dynamic_sections (bfd * output_bfd,
|
struct bfd_link_info * info)
|
struct bfd_link_info * info)
|
{
|
{
|
bfd * dynobj;
|
bfd * dynobj;
|
asection * sgot;
|
asection * sgot;
|
asection * sdyn;
|
asection * sdyn;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
BFD_ASSERT (sgot != NULL);
|
BFD_ASSERT (sgot != NULL);
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
if (elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
asection * splt;
|
asection * splt;
|
Elf32_External_Dyn * dyncon;
|
Elf32_External_Dyn * dyncon;
|
Elf32_External_Dyn * dynconend;
|
Elf32_External_Dyn * dynconend;
|
|
|
BFD_ASSERT (sdyn != NULL);
|
BFD_ASSERT (sdyn != NULL);
|
|
|
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
|
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
|
|
|
for (; dyncon < dynconend; dyncon++)
|
for (; dyncon < dynconend; dyncon++)
|
{
|
{
|
Elf_Internal_Dyn dyn;
|
Elf_Internal_Dyn dyn;
|
const char * name;
|
const char * name;
|
asection * s;
|
asection * s;
|
|
|
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
|
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
|
|
|
switch (dyn.d_tag)
|
switch (dyn.d_tag)
|
{
|
{
|
default:
|
default:
|
break;
|
break;
|
|
|
case DT_PLTGOT:
|
case DT_PLTGOT:
|
name = ".got";
|
name = ".got";
|
goto get_vma;
|
goto get_vma;
|
|
|
case DT_JMPREL:
|
case DT_JMPREL:
|
name = ".rela.plt";
|
name = ".rela.plt";
|
get_vma:
|
get_vma:
|
s = bfd_get_section_by_name (output_bfd, name);
|
s = bfd_get_section_by_name (output_bfd, name);
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
dyn.d_un.d_ptr = s->vma;
|
dyn.d_un.d_ptr = s->vma;
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
break;
|
break;
|
|
|
case DT_PLTRELSZ:
|
case DT_PLTRELSZ:
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
dyn.d_un.d_val = s->size;
|
dyn.d_un.d_val = s->size;
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
break;
|
break;
|
|
|
case DT_RELASZ:
|
case DT_RELASZ:
|
/* My reading of the SVR4 ABI indicates that the
|
/* My reading of the SVR4 ABI indicates that the
|
procedure linkage table relocs (DT_JMPREL) should be
|
procedure linkage table relocs (DT_JMPREL) should be
|
included in the overall relocs (DT_RELA). This is
|
included in the overall relocs (DT_RELA). This is
|
what Solaris does. However, UnixWare can not handle
|
what Solaris does. However, UnixWare can not handle
|
that case. Therefore, we override the DT_RELASZ entry
|
that case. Therefore, we override the DT_RELASZ entry
|
here to make it not include the JMPREL relocs. Since
|
here to make it not include the JMPREL relocs. Since
|
the linker script arranges for .rela.plt to follow all
|
the linker script arranges for .rela.plt to follow all
|
other relocation sections, we don't have to worry
|
other relocation sections, we don't have to worry
|
about changing the DT_RELA entry. */
|
about changing the DT_RELA entry. */
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
if (s != NULL)
|
if (s != NULL)
|
dyn.d_un.d_val -= s->size;
|
dyn.d_un.d_val -= s->size;
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Fill in the first entry in the procedure linkage table. */
|
/* Fill in the first entry in the procedure linkage table. */
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
if (splt && splt->size > 0)
|
if (splt && splt->size > 0)
|
{
|
{
|
if (info->shared)
|
if (info->shared)
|
{
|
{
|
memcpy (splt->contents, elf_mn10300_pic_plt_entry,
|
memcpy (splt->contents, elf_mn10300_pic_plt_entry,
|
elf_mn10300_sizeof_plt (info));
|
elf_mn10300_sizeof_plt (info));
|
}
|
}
|
else
|
else
|
{
|
{
|
memcpy (splt->contents, elf_mn10300_plt0_entry, PLT0_ENTRY_SIZE);
|
memcpy (splt->contents, elf_mn10300_plt0_entry, PLT0_ENTRY_SIZE);
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
sgot->output_section->vma + sgot->output_offset + 4,
|
sgot->output_section->vma + sgot->output_offset + 4,
|
splt->contents + elf_mn10300_plt0_gotid_offset (info));
|
splt->contents + elf_mn10300_plt0_gotid_offset (info));
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
sgot->output_section->vma + sgot->output_offset + 8,
|
sgot->output_section->vma + sgot->output_offset + 8,
|
splt->contents + elf_mn10300_plt0_linker_offset (info));
|
splt->contents + elf_mn10300_plt0_linker_offset (info));
|
}
|
}
|
|
|
/* UnixWare sets the entsize of .plt to 4, although that doesn't
|
/* UnixWare sets the entsize of .plt to 4, although that doesn't
|
really seem like the right value. */
|
really seem like the right value. */
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
|
}
|
}
|
}
|
}
|
|
|
/* Fill in the first three entries in the global offset table. */
|
/* Fill in the first three entries in the global offset table. */
|
if (sgot->size > 0)
|
if (sgot->size > 0)
|
{
|
{
|
if (sdyn == NULL)
|
if (sdyn == NULL)
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
|
else
|
else
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
sdyn->output_section->vma + sdyn->output_offset,
|
sdyn->output_section->vma + sdyn->output_offset,
|
sgot->contents);
|
sgot->contents);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
|
}
|
}
|
|
|
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
|
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Classify relocation types, such that combreloc can sort them
|
/* Classify relocation types, such that combreloc can sort them
|
properly. */
|
properly. */
|
|
|
static enum elf_reloc_type_class
|
static enum elf_reloc_type_class
|
_bfd_mn10300_elf_reloc_type_class (const Elf_Internal_Rela *rela)
|
_bfd_mn10300_elf_reloc_type_class (const Elf_Internal_Rela *rela)
|
{
|
{
|
switch ((int) ELF32_R_TYPE (rela->r_info))
|
switch ((int) ELF32_R_TYPE (rela->r_info))
|
{
|
{
|
case R_MN10300_RELATIVE: return reloc_class_relative;
|
case R_MN10300_RELATIVE: return reloc_class_relative;
|
case R_MN10300_JMP_SLOT: return reloc_class_plt;
|
case R_MN10300_JMP_SLOT: return reloc_class_plt;
|
case R_MN10300_COPY: return reloc_class_copy;
|
case R_MN10300_COPY: return reloc_class_copy;
|
default: return reloc_class_normal;
|
default: return reloc_class_normal;
|
}
|
}
|
}
|
}
|
|
|
#ifndef ELF_ARCH
|
#ifndef ELF_ARCH
|
#define TARGET_LITTLE_SYM bfd_elf32_mn10300_vec
|
#define TARGET_LITTLE_SYM bfd_elf32_mn10300_vec
|
#define TARGET_LITTLE_NAME "elf32-mn10300"
|
#define TARGET_LITTLE_NAME "elf32-mn10300"
|
#define ELF_ARCH bfd_arch_mn10300
|
#define ELF_ARCH bfd_arch_mn10300
|
#define ELF_MACHINE_CODE EM_MN10300
|
#define ELF_MACHINE_CODE EM_MN10300
|
#define ELF_MACHINE_ALT1 EM_CYGNUS_MN10300
|
#define ELF_MACHINE_ALT1 EM_CYGNUS_MN10300
|
#define ELF_MAXPAGESIZE 0x1000
|
#define ELF_MAXPAGESIZE 0x1000
|
#endif
|
#endif
|
|
|
#define elf_info_to_howto mn10300_info_to_howto
|
#define elf_info_to_howto mn10300_info_to_howto
|
#define elf_info_to_howto_rel 0
|
#define elf_info_to_howto_rel 0
|
#define elf_backend_can_gc_sections 1
|
#define elf_backend_can_gc_sections 1
|
#define elf_backend_rela_normal 1
|
#define elf_backend_rela_normal 1
|
#define elf_backend_check_relocs mn10300_elf_check_relocs
|
#define elf_backend_check_relocs mn10300_elf_check_relocs
|
#define elf_backend_gc_mark_hook mn10300_elf_gc_mark_hook
|
#define elf_backend_gc_mark_hook mn10300_elf_gc_mark_hook
|
#define elf_backend_relocate_section mn10300_elf_relocate_section
|
#define elf_backend_relocate_section mn10300_elf_relocate_section
|
#define bfd_elf32_bfd_relax_section mn10300_elf_relax_section
|
#define bfd_elf32_bfd_relax_section mn10300_elf_relax_section
|
#define bfd_elf32_bfd_get_relocated_section_contents \
|
#define bfd_elf32_bfd_get_relocated_section_contents \
|
mn10300_elf_get_relocated_section_contents
|
mn10300_elf_get_relocated_section_contents
|
#define bfd_elf32_bfd_link_hash_table_create \
|
#define bfd_elf32_bfd_link_hash_table_create \
|
elf32_mn10300_link_hash_table_create
|
elf32_mn10300_link_hash_table_create
|
#define bfd_elf32_bfd_link_hash_table_free \
|
#define bfd_elf32_bfd_link_hash_table_free \
|
elf32_mn10300_link_hash_table_free
|
elf32_mn10300_link_hash_table_free
|
|
|
#ifndef elf_symbol_leading_char
|
#ifndef elf_symbol_leading_char
|
#define elf_symbol_leading_char '_'
|
#define elf_symbol_leading_char '_'
|
#endif
|
#endif
|
|
|
/* So we can set bits in e_flags. */
|
/* So we can set bits in e_flags. */
|
#define elf_backend_final_write_processing \
|
#define elf_backend_final_write_processing \
|
_bfd_mn10300_elf_final_write_processing
|
_bfd_mn10300_elf_final_write_processing
|
#define elf_backend_object_p _bfd_mn10300_elf_object_p
|
#define elf_backend_object_p _bfd_mn10300_elf_object_p
|
|
|
#define bfd_elf32_bfd_merge_private_bfd_data \
|
#define bfd_elf32_bfd_merge_private_bfd_data \
|
_bfd_mn10300_elf_merge_private_bfd_data
|
_bfd_mn10300_elf_merge_private_bfd_data
|
|
|
#define elf_backend_can_gc_sections 1
|
#define elf_backend_can_gc_sections 1
|
#define elf_backend_create_dynamic_sections \
|
#define elf_backend_create_dynamic_sections \
|
_bfd_mn10300_elf_create_dynamic_sections
|
_bfd_mn10300_elf_create_dynamic_sections
|
#define elf_backend_adjust_dynamic_symbol \
|
#define elf_backend_adjust_dynamic_symbol \
|
_bfd_mn10300_elf_adjust_dynamic_symbol
|
_bfd_mn10300_elf_adjust_dynamic_symbol
|
#define elf_backend_size_dynamic_sections \
|
#define elf_backend_size_dynamic_sections \
|
_bfd_mn10300_elf_size_dynamic_sections
|
_bfd_mn10300_elf_size_dynamic_sections
|
#define elf_backend_omit_section_dynsym \
|
#define elf_backend_omit_section_dynsym \
|
((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
|
((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
|
#define elf_backend_finish_dynamic_symbol \
|
#define elf_backend_finish_dynamic_symbol \
|
_bfd_mn10300_elf_finish_dynamic_symbol
|
_bfd_mn10300_elf_finish_dynamic_symbol
|
#define elf_backend_finish_dynamic_sections \
|
#define elf_backend_finish_dynamic_sections \
|
_bfd_mn10300_elf_finish_dynamic_sections
|
_bfd_mn10300_elf_finish_dynamic_sections
|
|
|
#define elf_backend_reloc_type_class \
|
#define elf_backend_reloc_type_class \
|
_bfd_mn10300_elf_reloc_type_class
|
_bfd_mn10300_elf_reloc_type_class
|
|
|
#define elf_backend_want_got_plt 1
|
#define elf_backend_want_got_plt 1
|
#define elf_backend_plt_readonly 1
|
#define elf_backend_plt_readonly 1
|
#define elf_backend_want_plt_sym 0
|
#define elf_backend_want_plt_sym 0
|
#define elf_backend_got_header_size 12
|
#define elf_backend_got_header_size 12
|
|
|
#include "elf32-target.h"
|
#include "elf32-target.h"
|
|
|
