/* 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
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Copyright 1996, 1997, 1998, 1999, 2000, 2001
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Free Software Foundation, Inc.
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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 2 of the License, or
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the Free Software Foundation; either version 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "bfd.h"
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#include "bfd.h"
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#include "sysdep.h"
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#include "sysdep.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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struct elf32_mn10300_link_hash_entry {
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struct elf32_mn10300_link_hash_entry {
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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 funtion symbols, the amount of stack space that would be allocated
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/* For funtion 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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};
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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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/* 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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/* 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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(boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
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(boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
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(info)))
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(info)))
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static struct bfd_hash_entry *elf32_mn10300_link_hash_newfunc
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static struct bfd_hash_entry *elf32_mn10300_link_hash_newfunc
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PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
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PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
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static struct bfd_link_hash_table *elf32_mn10300_link_hash_table_create
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static struct bfd_link_hash_table *elf32_mn10300_link_hash_table_create
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PARAMS ((bfd *));
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PARAMS ((bfd *));
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static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
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static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
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PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
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PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
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static void mn10300_info_to_howto
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static void mn10300_info_to_howto
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PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
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PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
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static boolean mn10300_elf_check_relocs
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static boolean mn10300_elf_check_relocs
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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const Elf_Internal_Rela *));
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const Elf_Internal_Rela *));
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static asection *mn10300_elf_gc_mark_hook
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static asection *mn10300_elf_gc_mark_hook
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PARAMS ((bfd *, struct bfd_link_info *info, Elf_Internal_Rela *,
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PARAMS ((bfd *, struct bfd_link_info *info, Elf_Internal_Rela *,
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struct elf_link_hash_entry *, Elf_Internal_Sym *));
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struct elf_link_hash_entry *, Elf_Internal_Sym *));
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static boolean mn10300_elf_relax_delete_bytes
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static boolean mn10300_elf_relax_delete_bytes
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PARAMS ((bfd *, asection *, bfd_vma, int));
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PARAMS ((bfd *, asection *, bfd_vma, int));
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static boolean mn10300_elf_symbol_address_p
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static boolean mn10300_elf_symbol_address_p
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PARAMS ((bfd *, asection *, Elf32_External_Sym *, bfd_vma));
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PARAMS ((bfd *, asection *, Elf32_External_Sym *, bfd_vma));
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static boolean elf32_mn10300_finish_hash_table_entry
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static boolean elf32_mn10300_finish_hash_table_entry
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PARAMS ((struct bfd_hash_entry *, PTR));
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PARAMS ((struct bfd_hash_entry *, PTR));
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static void compute_function_info
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static void compute_function_info
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PARAMS ((bfd *, struct elf32_mn10300_link_hash_entry *,
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PARAMS ((bfd *, struct elf32_mn10300_link_hash_entry *,
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bfd_vma, unsigned char *));
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bfd_vma, unsigned char *));
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/* We have to use RELA instructions since md_apply_fix3 in the assembler
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/* We have to use RELA instructions since md_apply_fix3 in the assembler
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does absolutely nothing. */
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does absolutely nothing. */
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#define USE_RELA
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#define USE_RELA
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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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/* 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,
|
0xffffff,
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false),
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false),
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};
|
};
|
|
|
struct mn10300_reloc_map {
|
struct mn10300_reloc_map {
|
bfd_reloc_code_real_type bfd_reloc_val;
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bfd_reloc_code_real_type bfd_reloc_val;
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unsigned char elf_reloc_val;
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unsigned char elf_reloc_val;
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};
|
};
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|
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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, },
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{ 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, },
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{ BFD_RELOC_32_PCREL, R_MN10300_PCREL32, },
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{ BFD_RELOC_16_PCREL, R_MN10300_PCREL16, },
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{ BFD_RELOC_16_PCREL, R_MN10300_PCREL16, },
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{ BFD_RELOC_8_PCREL, R_MN10300_PCREL8, },
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{ BFD_RELOC_8_PCREL, R_MN10300_PCREL8, },
|
{ BFD_RELOC_24, R_MN10300_24, },
|
{ BFD_RELOC_24, R_MN10300_24, },
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{ BFD_RELOC_VTABLE_INHERIT, R_MN10300_GNU_VTINHERIT },
|
{ BFD_RELOC_VTABLE_INHERIT, R_MN10300_GNU_VTINHERIT },
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{ BFD_RELOC_VTABLE_ENTRY, R_MN10300_GNU_VTENTRY },
|
{ BFD_RELOC_VTABLE_ENTRY, R_MN10300_GNU_VTENTRY },
|
};
|
};
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
bfd_elf32_bfd_reloc_type_lookup (abfd, code)
|
bfd_elf32_bfd_reloc_type_lookup (abfd, code)
|
bfd *abfd ATTRIBUTE_UNUSED;
|
bfd *abfd ATTRIBUTE_UNUSED;
|
bfd_reloc_code_real_type code;
|
bfd_reloc_code_real_type code;
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = 0;
|
for (i = 0;
|
i < sizeof (mn10300_reloc_map) / sizeof (struct mn10300_reloc_map);
|
i < sizeof (mn10300_reloc_map) / sizeof (struct mn10300_reloc_map);
|
i++)
|
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;
|
}
|
}
|
|
|
/* 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 (abfd, cache_ptr, dst)
|
mn10300_info_to_howto (abfd, cache_ptr, dst)
|
bfd *abfd ATTRIBUTE_UNUSED;
|
bfd *abfd ATTRIBUTE_UNUSED;
|
arelent *cache_ptr;
|
arelent *cache_ptr;
|
Elf32_Internal_Rela *dst;
|
Elf32_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 boolean
|
static boolean
|
mn10300_elf_check_relocs (abfd, info, sec, relocs)
|
mn10300_elf_check_relocs (abfd, info, sec, relocs)
|
bfd *abfd;
|
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;
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
|
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel_end;
|
const Elf_Internal_Rela *rel_end;
|
|
|
if (info->relocateable)
|
if (info->relocateable)
|
return true;
|
return true;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
sym_hashes = elf_sym_hashes (abfd);
|
sym_hashes = elf_sym_hashes (abfd);
|
sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
|
sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
|
if (!elf_bad_symtab (abfd))
|
if (!elf_bad_symtab (abfd))
|
sym_hashes_end -= symtab_hdr->sh_info;
|
sym_hashes_end -= symtab_hdr->sh_info;
|
|
|
rel_end = relocs + sec->reloc_count;
|
rel_end = relocs + sec->reloc_count;
|
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;
|
|
|
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];
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
/* 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_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
return false;
|
return false;
|
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:
|
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
return false;
|
return false;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* 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 (abfd, info, rel, h, sym)
|
mn10300_elf_gc_mark_hook (abfd, info, rel, h, sym)
|
bfd *abfd;
|
bfd *abfd;
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
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:
|
break;
|
break;
|
|
|
default:
|
default:
|
switch (h->root.type)
|
switch (h->root.type)
|
{
|
{
|
case bfd_link_hash_defined:
|
case bfd_link_hash_defined:
|
case bfd_link_hash_defweak:
|
case bfd_link_hash_defweak:
|
return h->root.u.def.section;
|
return h->root.u.def.section;
|
|
|
case bfd_link_hash_common:
|
case bfd_link_hash_common:
|
return h->root.u.c.p->section;
|
return h->root.u.c.p->section;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if (!(elf_bad_symtab (abfd)
|
if (!(elf_bad_symtab (abfd)
|
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
|
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
|
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
|
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
|
&& sym->st_shndx != SHN_COMMON))
|
&& sym->st_shndx != SHN_COMMON))
|
{
|
{
|
return bfd_section_from_elf_index (abfd, sym->st_shndx);
|
return bfd_section_from_elf_index (abfd, sym->st_shndx);
|
}
|
}
|
}
|
}
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* 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 (howto, input_bfd, output_bfd,
|
mn10300_elf_final_link_relocate (howto, input_bfd, output_bfd,
|
input_section, contents, offset, value,
|
input_section, contents, offset, value,
|
addend, info, sym_sec, is_local)
|
addend, info, sym_sec, is_local)
|
reloc_howto_type *howto;
|
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 bfd_link_info *info ATTRIBUTE_UNUSED;
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
asection *sym_sec ATTRIBUTE_UNUSED;
|
asection *sym_sec ATTRIBUTE_UNUSED;
|
int is_local ATTRIBUTE_UNUSED;
|
int is_local ATTRIBUTE_UNUSED;
|
{
|
{
|
unsigned long r_type = howto->type;
|
unsigned long r_type = howto->type;
|
bfd_byte *hit_data = contents + offset;
|
bfd_byte *hit_data = contents + offset;
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_MN10300_NONE:
|
case R_MN10300_NONE:
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
case R_MN10300_32:
|
case R_MN10300_32:
|
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;
|
|
|
default:
|
default:
|
return bfd_reloc_notsupported;
|
return bfd_reloc_notsupported;
|
}
|
}
|
}
|
}
|
|
|
/* Relocate an MN10300 ELF section. */
|
/* Relocate an MN10300 ELF section. */
|
static boolean
|
static boolean
|
mn10300_elf_relocate_section (output_bfd, info, input_bfd, input_section,
|
mn10300_elf_relocate_section (output_bfd, info, input_bfd, input_section,
|
contents, relocs, local_syms, local_sections)
|
contents, relocs, local_syms, local_sections)
|
bfd *output_bfd;
|
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 elf32_mn10300_link_hash_entry **sym_hashes;
|
struct elf32_mn10300_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 = (struct elf32_mn10300_link_hash_entry **)
|
sym_hashes = (struct elf32_mn10300_link_hash_entry **)
|
(elf_sym_hashes (input_bfd));
|
(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;
|
|
|
if (info->relocateable)
|
if (info->relocateable)
|
{
|
{
|
/* This is a relocateable link. We don't have to change
|
/* This is a relocateable link. We don't have to change
|
anything, unless the reloc is against a section symbol,
|
anything, unless the reloc is against a section symbol,
|
in which case we have to adjust according to where the
|
in which case we have to adjust according to where the
|
section symbol winds up in the output section. */
|
section symbol winds up in the output section. */
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
{
|
{
|
sym = local_syms + r_symndx;
|
sym = local_syms + r_symndx;
|
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
{
|
{
|
sec = local_sections[r_symndx];
|
sec = local_sections[r_symndx];
|
rel->r_addend += sec->output_offset + sym->st_value;
|
rel->r_addend += sec->output_offset + sym->st_value;
|
}
|
}
|
}
|
}
|
|
|
continue;
|
continue;
|
}
|
}
|
|
|
/* This is a final link. */
|
/* This is a final link. */
|
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 = (sec->output_section->vma
|
relocation = (sec->output_section->vma
|
+ sec->output_offset
|
+ sec->output_offset
|
+ sym->st_value);
|
+ sym->st_value);
|
}
|
}
|
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 elf32_mn10300_link_hash_entry *) h->root.root.u.i.link;
|
h = (struct elf32_mn10300_link_hash_entry *) h->root.root.u.i.link;
|
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)
|
{
|
{
|
sec = h->root.root.u.def.section;
|
sec = h->root.root.u.def.section;
|
relocation = (h->root.root.u.def.value
|
relocation = (h->root.root.u.def.value
|
+ sec->output_section->vma
|
+ sec->output_section->vma
|
+ sec->output_offset);
|
+ sec->output_offset);
|
}
|
}
|
else if (h->root.root.type == bfd_link_hash_undefweak)
|
else if (h->root.root.type == bfd_link_hash_undefweak)
|
relocation = 0;
|
relocation = 0;
|
else
|
else
|
{
|
{
|
if (! ((*info->callbacks->undefined_symbol)
|
if (! ((*info->callbacks->undefined_symbol)
|
(info, h->root.root.root.string, input_bfd,
|
(info, h->root.root.root.string, input_bfd,
|
input_section, rel->r_offset, true)))
|
input_section, rel->r_offset, true)))
|
return false;
|
return false;
|
relocation = 0;
|
relocation = 0;
|
}
|
}
|
}
|
}
|
|
|
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,
|
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 = (const char *) 0;
|
const char *msg = (const char *) 0;
|
|
|
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, name, howto->name, (bfd_vma) 0,
|
(info, name, howto->name, (bfd_vma) 0,
|
input_bfd, input_section, rel->r_offset)))
|
input_bfd, 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:
|
msg = _("internal error: dangerous error");
|
msg = _("internal error: dangerous error");
|
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 boolean
|
static boolean
|
elf32_mn10300_finish_hash_table_entry (gen_entry, in_args)
|
elf32_mn10300_finish_hash_table_entry (gen_entry, in_args)
|
struct bfd_hash_entry *gen_entry;
|
struct bfd_hash_entry *gen_entry;
|
PTR in_args ATTRIBUTE_UNUSED;
|
PTR in_args ATTRIBUTE_UNUSED;
|
{
|
{
|
struct elf32_mn10300_link_hash_entry *entry;
|
struct elf32_mn10300_link_hash_entry *entry;
|
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 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, then
|
can move from the function itself into the "call" instruction, then
|
note that all "call" instructions should be converted into "calls"
|
note that all "call" instructions should be converted into "calls"
|
instructions and return. */
|
instructions and return. */
|
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))
|
{
|
{
|
/* 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 && entry->stack_size <= 128)
|
if (entry->stack_size > 0 && entry->stack_size <= 128)
|
byte_count += 3;
|
byte_count += 3;
|
else if (entry->stack_size > 0 && entry->stack_size < 256)
|
else if (entry->stack_size > 0 && entry->stack_size < 256)
|
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" instrutions. */
|
the associated "call" instructions into "calls" instrutions. */
|
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;
|
}
|
}
|
|
|
/* This function handles relaxing for the mn10300.
|
/* This function handles relaxing for the mn10300.
|
|
|
There's quite a few relaxing opportunites available on the mn10300:
|
There's quite a few relaxing opportunites 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 boolean
|
static boolean
|
mn10300_elf_relax_section (abfd, sec, link_info, again)
|
mn10300_elf_relax_section (abfd, sec, link_info, again)
|
bfd *abfd;
|
bfd *abfd;
|
asection *sec;
|
asection *sec;
|
struct bfd_link_info *link_info;
|
struct bfd_link_info *link_info;
|
boolean *again;
|
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 *free_relocs = NULL;
|
Elf_Internal_Rela *free_relocs = NULL;
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irel, *irelend;
|
bfd_byte *contents = NULL;
|
bfd_byte *contents = NULL;
|
bfd_byte *free_contents = NULL;
|
bfd_byte *free_contents = NULL;
|
Elf32_External_Sym *extsyms = NULL;
|
Elf32_External_Sym *extsyms = NULL;
|
Elf32_External_Sym *free_extsyms = NULL;
|
Elf32_External_Sym *free_extsyms = NULL;
|
struct elf32_mn10300_link_hash_table *hash_table;
|
struct elf32_mn10300_link_hash_table *hash_table;
|
|
|
/* 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)
|
{
|
{
|
asection *section;
|
asection *section;
|
|
|
/* 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;
|
|
|
/* Get cached copy if it exists. */
|
/* Get cached copy if it exists. */
|
if (symtab_hdr->contents != NULL)
|
if (symtab_hdr->contents != NULL)
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
else
|
else
|
{
|
{
|
/* Go get them off disk. */
|
/* Go get them off disk. */
|
extsyms = ((Elf32_External_Sym *)
|
extsyms = ((Elf32_External_Sym *)
|
bfd_malloc (symtab_hdr->sh_size));
|
bfd_malloc (symtab_hdr->sh_size));
|
if (extsyms == NULL)
|
if (extsyms == NULL)
|
goto error_return;
|
goto error_return;
|
free_extsyms = extsyms;
|
free_extsyms = extsyms;
|
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
|| (bfd_read (extsyms, 1, symtab_hdr->sh_size, input_bfd)
|
|| (bfd_read (extsyms, 1, symtab_hdr->sh_size, input_bfd)
|
!= symtab_hdr->sh_size))
|
!= symtab_hdr->sh_size))
|
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;
|
|
|
/* 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->_raw_size != 0)
|
else if (section->_raw_size != 0)
|
{
|
{
|
/* Go get them off disk. */
|
/* Go get them off disk. */
|
contents = (bfd_byte *) bfd_malloc (section->_raw_size);
|
contents = (bfd_byte *) bfd_malloc (section->_raw_size);
|
if (contents == NULL)
|
if (contents == NULL)
|
goto error_return;
|
goto error_return;
|
free_contents = contents;
|
free_contents = contents;
|
|
|
if (!bfd_get_section_contents (input_bfd, section,
|
if (!bfd_get_section_contents (input_bfd, section,
|
contents, (file_ptr) 0,
|
contents, (file_ptr) 0,
|
section->_raw_size))
|
section->_raw_size))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
else
|
else
|
{
|
{
|
contents = NULL;
|
contents = NULL;
|
free_contents = NULL;
|
free_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_elf32_link_read_relocs
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
(input_bfd, section, (PTR) NULL,
|
(input_bfd, section, (PTR) NULL,
|
(Elf_Internal_Rela *) NULL,
|
(Elf_Internal_Rela *) NULL,
|
link_info->keep_memory));
|
link_info->keep_memory));
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free_relocs = internal_relocs;
|
free_relocs = internal_relocs;
|
|
|
/* 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;
|
|
|
bfd_elf32_swap_symbol_in (input_bfd,
|
bfd_elf32_swap_symbol_in (input_bfd,
|
extsyms + r_index, &isym);
|
extsyms + r_index, &isym);
|
|
|
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 > 0
|
else if (isym.st_shndx > 0
|
&& isym.st_shndx < SHN_LORESERVE)
|
&& isym.st_shndx < SHN_LORESERVE)
|
sym_sec
|
sym_sec
|
= bfd_section_from_elf_index (input_bfd,
|
= bfd_section_from_elf_index (input_bfd,
|
isym.st_shndx);
|
isym.st_shndx);
|
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;
|
|
|
sym_name = bfd_elf_string_from_elf_section (input_bfd,
|
sym_name = bfd_elf_string_from_elf_section (input_bfd,
|
symtab_hdr->sh_link,
|
symtab_hdr->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 (r_index < symtab_hdr->sh_info
|
if (r_index < symtab_hdr->sh_info
|
&& ELF_ST_TYPE (isym.st_info) != STT_FUNC)
|
&& 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. */
|
new_name = bfd_malloc (strlen (sym_name) + 10);
|
new_name = bfd_malloc (strlen (sym_name) + 10);
|
if (new_name == 0)
|
if (new_name == 0)
|
goto error_return;
|
goto error_return;
|
|
|
sprintf (new_name, "%s_%08x",
|
sprintf (new_name, "%s_%08x",
|
sym_name, (int) sym_sec);
|
sym_name, (int) sym_sec);
|
sym_name = new_name;
|
sym_name = new_name;
|
|
|
hash = (struct elf32_mn10300_link_hash_entry *)
|
hash = (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, true,
|
sym_name, true,
|
true, false);
|
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];
|
}
|
}
|
|
|
/* 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 direct_calls
|
/* If this is a jump/call, then bump the direct_calls
|
counter. Else force "call" to "calls" conversions. */
|
counter. Else force "call" to "calls" conversions. */
|
if (r_type == R_MN10300_PCREL32
|
if (r_type == R_MN10300_PCREL32
|
|| 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)
|
{
|
{
|
|
|
Elf32_External_Sym *esym, *esymend;
|
Elf32_External_Sym *esym, *esymend;
|
int idx, shndx;
|
int idx, shndx;
|
|
|
shndx = _bfd_elf_section_from_bfd_section (input_bfd,
|
shndx = _bfd_elf_section_from_bfd_section (input_bfd,
|
section);
|
section);
|
|
|
/* 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. */
|
esym = extsyms;
|
esym = extsyms;
|
esymend = esym + symtab_hdr->sh_info;
|
esymend = esym + symtab_hdr->sh_info;
|
for (; esym < esymend; esym++)
|
for (; esym < esymend; esym++)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym isym;
|
|
|
bfd_elf32_swap_symbol_in (input_bfd, esym, &isym);
|
bfd_elf32_swap_symbol_in (input_bfd, esym, &isym);
|
if (isym.st_shndx == shndx
|
if (isym.st_shndx == shndx
|
&& ELF_ST_TYPE (isym.st_info) == STT_FUNC)
|
&& ELF_ST_TYPE (isym.st_info) == STT_FUNC)
|
{
|
{
|
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 > 0
|
else if (isym.st_shndx > 0
|
&& isym.st_shndx < SHN_LORESERVE)
|
&& isym.st_shndx < SHN_LORESERVE)
|
sym_sec
|
sym_sec
|
= bfd_section_from_elf_index (input_bfd,
|
= bfd_section_from_elf_index (input_bfd,
|
isym.st_shndx);
|
isym.st_shndx);
|
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;
|
|
|
sym_name = bfd_elf_string_from_elf_section (input_bfd,
|
sym_name = 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. */
|
new_name = bfd_malloc (strlen (sym_name) + 10);
|
new_name = bfd_malloc (strlen (sym_name) + 10);
|
if (new_name == 0)
|
if (new_name == 0)
|
goto error_return;
|
goto error_return;
|
|
|
sprintf (new_name, "%s_%08x",
|
sprintf (new_name, "%s_%08x",
|
sym_name, (int) sym_sec);
|
sym_name, (int) sym_sec);
|
sym_name = new_name;
|
sym_name = new_name;
|
|
|
hash = (struct elf32_mn10300_link_hash_entry *)
|
hash = (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, true,
|
sym_name, true,
|
true, false);
|
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);
|
}
|
}
|
}
|
}
|
|
|
esym = extsyms + symtab_hdr->sh_info;
|
esym = extsyms + symtab_hdr->sh_info;
|
esymend = extsyms + (symtab_hdr->sh_size
|
esymend = extsyms + (symtab_hdr->sh_size
|
/ sizeof (Elf32_External_Sym));
|
/ sizeof (Elf32_External_Sym));
|
for (idx = 0; esym < esymend; esym++, idx++)
|
for (idx = 0; esym < esymend; esym++, idx++)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym isym;
|
|
|
bfd_elf32_swap_symbol_in (input_bfd, esym, &isym);
|
bfd_elf32_swap_symbol_in (input_bfd, esym, &isym);
|
hash = (struct elf32_mn10300_link_hash_entry *)
|
hash = (struct elf32_mn10300_link_hash_entry *)
|
elf_sym_hashes (input_bfd)[idx];
|
elf_sym_hashes (input_bfd)[idx];
|
if (isym.st_shndx == shndx
|
if (isym.st_shndx == shndx
|
&& ELF_ST_TYPE (isym.st_info) == STT_FUNC
|
&& ELF_ST_TYPE (isym.st_info) == STT_FUNC
|
&& (hash)->root.root.u.def.section == section
|
&& (hash)->root.root.u.def.section == section
|
&& ((hash)->root.root.type == bfd_link_hash_defined
|
&& ((hash)->root.root.type == bfd_link_hash_defined
|
|| (hash)->root.root.type == bfd_link_hash_defweak))
|
|| (hash)->root.root.type == bfd_link_hash_defweak))
|
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 (free_relocs != NULL)
|
if (free_relocs != NULL)
|
{
|
{
|
free (free_relocs);
|
free (free_relocs);
|
free_relocs = NULL;
|
free_relocs = NULL;
|
}
|
}
|
|
|
/* Cache or free any memory we allocated for the contents. */
|
/* Cache or free any memory we allocated for the contents. */
|
if (free_contents != NULL)
|
if (free_contents != NULL)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (free_contents);
|
free (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;
|
}
|
}
|
free_contents = NULL;
|
free_contents = NULL;
|
}
|
}
|
}
|
}
|
|
|
/* Cache or free any memory we allocated for the symbols. */
|
/* Cache or free any memory we allocated for the symbols. */
|
if (free_extsyms != NULL)
|
if (free_extsyms != NULL)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (free_extsyms);
|
free (free_extsyms);
|
else
|
else
|
{
|
{
|
/* Cache the symbols for elf_link_input_bfd. */
|
/* Cache the symbols for elf_link_input_bfd. */
|
symtab_hdr->contents = extsyms;
|
symtab_hdr->contents = extsyms;
|
}
|
}
|
free_extsyms = NULL;
|
free_extsyms = 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,
|
NULL);
|
NULL);
|
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,
|
NULL);
|
NULL);
|
|
|
/* 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)
|
{
|
{
|
asection *section;
|
asection *section;
|
|
|
/* 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;
|
|
|
/* Get cached copy if it exists. */
|
/* Get cached copy if it exists. */
|
if (symtab_hdr->contents != NULL)
|
if (symtab_hdr->contents != NULL)
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
else
|
else
|
{
|
{
|
/* Go get them off disk. */
|
/* Go get them off disk. */
|
extsyms = ((Elf32_External_Sym *)
|
extsyms = ((Elf32_External_Sym *)
|
bfd_malloc (symtab_hdr->sh_size));
|
bfd_malloc (symtab_hdr->sh_size));
|
if (extsyms == NULL)
|
if (extsyms == NULL)
|
goto error_return;
|
goto error_return;
|
free_extsyms = extsyms;
|
free_extsyms = extsyms;
|
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
|| (bfd_read (extsyms, 1, symtab_hdr->sh_size, input_bfd)
|
|| (bfd_read (extsyms, 1, symtab_hdr->sh_size, input_bfd)
|
!= symtab_hdr->sh_size))
|
!= symtab_hdr->sh_size))
|
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)
|
{
|
{
|
int shndx;
|
int shndx;
|
Elf32_External_Sym *esym, *esymend;
|
Elf32_External_Sym *esym, *esymend;
|
int idx;
|
int idx;
|
|
|
/* Skip non-code sections and empty sections. */
|
/* Skip non-code sections and empty sections. */
|
if ((section->flags & SEC_CODE) == 0 || section->_raw_size == 0)
|
if ((section->flags & SEC_CODE) == 0 || section->_raw_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_elf32_link_read_relocs
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
(input_bfd, section, (PTR) NULL,
|
(input_bfd, section, (PTR) NULL,
|
(Elf_Internal_Rela *) NULL,
|
(Elf_Internal_Rela *) NULL,
|
link_info->keep_memory));
|
link_info->keep_memory));
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free_relocs = internal_relocs;
|
free_relocs = internal_relocs;
|
}
|
}
|
|
|
/* 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. */
|
contents = (bfd_byte *) bfd_malloc (section->_raw_size);
|
contents = (bfd_byte *) bfd_malloc (section->_raw_size);
|
if (contents == NULL)
|
if (contents == NULL)
|
goto error_return;
|
goto error_return;
|
free_contents = contents;
|
free_contents = contents;
|
|
|
if (!bfd_get_section_contents (input_bfd, section,
|
if (!bfd_get_section_contents (input_bfd, section,
|
contents, (file_ptr) 0,
|
contents, (file_ptr) 0,
|
section->_raw_size))
|
section->_raw_size))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
shndx = _bfd_elf_section_from_bfd_section (input_bfd, section);
|
shndx = _bfd_elf_section_from_bfd_section (input_bfd, 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. */
|
esym = extsyms;
|
esym = extsyms;
|
esymend = esym + symtab_hdr->sh_info;
|
esymend = esym + symtab_hdr->sh_info;
|
for (; esym < esymend; esym++)
|
for (; esym < esymend; esym++)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym 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;
|
|
|
bfd_elf32_swap_symbol_in (input_bfd, esym, &isym);
|
bfd_elf32_swap_symbol_in (input_bfd, esym, &isym);
|
|
|
if (isym.st_shndx != shndx)
|
if (isym.st_shndx != 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 > 0 && isym.st_shndx < SHN_LORESERVE)
|
else if (isym.st_shndx > 0 && isym.st_shndx < SHN_LORESERVE)
|
sym_sec
|
sym_sec
|
= bfd_section_from_elf_index (input_bfd, isym.st_shndx);
|
= bfd_section_from_elf_index (input_bfd, isym.st_shndx);
|
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
|
abort ();
|
abort ();
|
|
|
sym_name = bfd_elf_string_from_elf_section (input_bfd,
|
sym_name = 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. */
|
new_name = bfd_malloc (strlen (sym_name) + 10);
|
new_name = bfd_malloc (strlen (sym_name) + 10);
|
if (new_name == 0)
|
if (new_name == 0)
|
goto error_return;
|
goto error_return;
|
sprintf (new_name, "%s_%08x", sym_name, (int) sym_sec);
|
sprintf (new_name, "%s_%08x", sym_name, (int) sym_sec);
|
sym_name = new_name;
|
sym_name = new_name;
|
|
|
sym_hash = (struct elf32_mn10300_link_hash_entry *)
|
sym_hash = (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,
|
sym_name, 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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (section)->this_hdr.contents = contents;
|
elf_section_data (section)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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 && sym_hash->stack_size <= 128)
|
if (sym_hash->stack_size && sym_hash->stack_size <= 128)
|
bytes += 3;
|
bytes += 3;
|
else if (sym_hash->stack_size
|
else if (sym_hash->stack_size
|
&& sym_hash->stack_size < 256)
|
&& sym_hash->stack_size < 256)
|
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. */
|
esym = extsyms + symtab_hdr->sh_info;
|
esym = extsyms + symtab_hdr->sh_info;
|
esymend = extsyms + (symtab_hdr->sh_size
|
esymend = extsyms + (symtab_hdr->sh_size
|
/ sizeof (Elf32_External_Sym));
|
/ sizeof (Elf32_External_Sym));
|
for (idx = 0; esym < esymend; esym++, idx++)
|
for (idx = 0; esym < esymend; esym++, idx++)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym isym;
|
struct elf32_mn10300_link_hash_entry *sym_hash;
|
struct elf32_mn10300_link_hash_entry *sym_hash;
|
|
|
bfd_elf32_swap_symbol_in (input_bfd, esym, &isym);
|
bfd_elf32_swap_symbol_in (input_bfd, esym, &isym);
|
sym_hash = (struct elf32_mn10300_link_hash_entry *)
|
sym_hash = (struct elf32_mn10300_link_hash_entry *)
|
(elf_sym_hashes (input_bfd)[idx]);
|
(elf_sym_hashes (input_bfd)[idx]);
|
if (isym.st_shndx == shndx
|
if (isym.st_shndx == shndx
|
&& (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;
|
|
|
/* 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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (section)->this_hdr.contents = contents;
|
elf_section_data (section)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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 && sym_hash->stack_size <= 128)
|
if (sym_hash->stack_size && sym_hash->stack_size <= 128)
|
bytes += 3;
|
bytes += 3;
|
else if (sym_hash->stack_size
|
else if (sym_hash->stack_size
|
&& sym_hash->stack_size < 256)
|
&& sym_hash->stack_size < 256)
|
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,
|
(sym_hash)->root.root.u.def.value,
|
(sym_hash)->root.root.u.def.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;
|
}
|
}
|
}
|
}
|
|
|
/* Cache or free any memory we allocated for the relocs. */
|
/* Cache or free any memory we allocated for the relocs. */
|
if (free_relocs != NULL)
|
if (free_relocs != NULL)
|
{
|
{
|
free (free_relocs);
|
free (free_relocs);
|
free_relocs = NULL;
|
free_relocs = NULL;
|
}
|
}
|
|
|
/* Cache or free any memory we allocated for the contents. */
|
/* Cache or free any memory we allocated for the contents. */
|
if (free_contents != NULL)
|
if (free_contents != NULL)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (free_contents);
|
free (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;
|
}
|
}
|
free_contents = NULL;
|
free_contents = NULL;
|
}
|
}
|
}
|
}
|
|
|
/* Cache or free any memory we allocated for the symbols. */
|
/* Cache or free any memory we allocated for the symbols. */
|
if (free_extsyms != NULL)
|
if (free_extsyms != NULL)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (free_extsyms);
|
free (free_extsyms);
|
else
|
else
|
{
|
{
|
/* Cache the symbols for elf_link_input_bfd. */
|
/* Cache the symbols for elf_link_input_bfd. */
|
symtab_hdr->contents = extsyms;
|
symtab_hdr->contents = extsyms;
|
}
|
}
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* (Re)initialize for the basic instruction shortening/relaxing pass. */
|
/* (Re)initialize for the basic instruction shortening/relaxing pass. */
|
contents = NULL;
|
contents = NULL;
|
extsyms = NULL;
|
extsyms = NULL;
|
internal_relocs = NULL;
|
internal_relocs = NULL;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
free_contents = NULL;
|
free_contents = NULL;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* We don't have to do anything for a relocateable link, if
|
/* We don't have to do anything for a relocateable 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->relocateable
|
if (link_info->relocateable
|
|| (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;
|
|
|
/* If this is the first time we have been called for this section,
|
/* If this is the first time we have been called for this section,
|
initialize the cooked size. */
|
initialize the cooked size. */
|
if (sec->_cooked_size == 0)
|
if (sec->_cooked_size == 0)
|
sec->_cooked_size = sec->_raw_size;
|
sec->_cooked_size = sec->_raw_size;
|
|
|
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_elf32_link_read_relocs
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
(abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
|
(abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
|
link_info->keep_memory));
|
link_info->keep_memory));
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free_relocs = internal_relocs;
|
free_relocs = internal_relocs;
|
|
|
/* 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. */
|
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
|
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
|
if (contents == NULL)
|
if (contents == NULL)
|
goto error_return;
|
goto error_return;
|
free_contents = contents;
|
free_contents = contents;
|
|
|
if (! bfd_get_section_contents (abfd, sec, contents,
|
if (! bfd_get_section_contents (abfd, sec, contents,
|
(file_ptr) 0, sec->_raw_size))
|
(file_ptr) 0, sec->_raw_size))
|
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 (extsyms == NULL)
|
if (extsyms == NULL)
|
{
|
{
|
/* Get cached copy if it exists. */
|
/* Get cached copy if it exists. */
|
if (symtab_hdr->contents != NULL)
|
if (symtab_hdr->contents != NULL)
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
else
|
else
|
{
|
{
|
/* Go get them off disk. */
|
/* Go get them off disk. */
|
extsyms = ((Elf32_External_Sym *)
|
extsyms = ((Elf32_External_Sym *)
|
bfd_malloc (symtab_hdr->sh_size));
|
bfd_malloc (symtab_hdr->sh_size));
|
if (extsyms == NULL)
|
if (extsyms == NULL)
|
goto error_return;
|
goto error_return;
|
free_extsyms = extsyms;
|
free_extsyms = extsyms;
|
if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
|| (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd)
|
|| (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd)
|
!= symtab_hdr->sh_size))
|
!= symtab_hdr->sh_size))
|
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. */
|
bfd_elf32_swap_symbol_in (abfd,
|
bfd_elf32_swap_symbol_in (abfd,
|
extsyms + ELF32_R_SYM (irel->r_info),
|
extsyms + ELF32_R_SYM (irel->r_info),
|
&isym);
|
&isym);
|
|
|
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 > 0 && isym.st_shndx < SHN_LORESERVE)
|
else if (isym.st_shndx > 0 && isym.st_shndx < SHN_LORESERVE)
|
sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx);
|
sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx);
|
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
|
abort ();
|
abort ();
|
|
|
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);
|
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);
|
|
|
/* 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 (strlen (sym_name) + 10);
|
new_name = bfd_malloc (strlen (sym_name) + 10);
|
if (new_name == 0)
|
if (new_name == 0)
|
goto error_return;
|
goto error_return;
|
sprintf (new_name, "%s_%08x", sym_name, (int) sym_sec);
|
sprintf (new_name, "%s_%08x", sym_name, (int) sym_sec);
|
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;
|
}
|
}
|
|
|
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)
|
{
|
{
|
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 == 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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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. */
|
if ((long) value < 0x8001 && (long) value > -0x8000)
|
if ((long) value < 0x8001 && (long) value > -0x8000)
|
{
|
{
|
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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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),
|
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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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->_cooked_size)
|
if (irel->r_offset == sec->_cooked_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, extsyms,
|
if (mn10300_elf_symbol_address_p (abfd, sec, extsyms,
|
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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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)
|
{
|
{
|
bfd_vma value = symval;
|
bfd_vma value = symval;
|
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
|
&& ((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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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),
|
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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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),
|
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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
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),
|
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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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),
|
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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
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),
|
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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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),
|
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;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* 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),
|
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 (free_relocs != NULL)
|
if (free_relocs != NULL)
|
{
|
{
|
free (free_relocs);
|
free (free_relocs);
|
free_relocs = NULL;
|
free_relocs = NULL;
|
}
|
}
|
|
|
if (free_contents != NULL)
|
if (free_contents != NULL)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (free_contents);
|
free (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;
|
}
|
}
|
free_contents = NULL;
|
free_contents = NULL;
|
}
|
}
|
|
|
if (free_extsyms != NULL)
|
if (free_extsyms != NULL)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (free_extsyms);
|
free (free_extsyms);
|
else
|
else
|
{
|
{
|
/* Cache the symbols for elf_link_input_bfd. */
|
/* Cache the symbols for elf_link_input_bfd. */
|
symtab_hdr->contents = extsyms;
|
symtab_hdr->contents = extsyms;
|
}
|
}
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
}
|
}
|
|
|
return true;
|
return true;
|
|
|
error_return:
|
error_return:
|
if (free_relocs != NULL)
|
if (free_relocs != NULL)
|
free (free_relocs);
|
free (free_relocs);
|
if (free_contents != NULL)
|
if (free_contents != NULL)
|
free (free_contents);
|
free (free_contents);
|
if (free_extsyms != NULL)
|
if (free_extsyms != NULL)
|
free (free_extsyms);
|
free (free_extsyms);
|
return false;
|
return false;
|
}
|
}
|
|
|
/* 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 (abfd, hash, addr, contents)
|
compute_function_info (abfd, hash, addr, contents)
|
bfd *abfd;
|
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 funtion's normal
|
instruction. We need this kept separate from the funtion'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)
|
{
|
{
|
/* "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;
|
|
|
return;
|
return;
|
}
|
}
|
|
|
/* Delete some bytes from a section while relaxing. */
|
/* Delete some bytes from a section while relaxing. */
|
|
|
static boolean
|
static boolean
|
mn10300_elf_relax_delete_bytes (abfd, sec, addr, count)
|
mn10300_elf_relax_delete_bytes (abfd, sec, addr, count)
|
bfd *abfd;
|
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;
|
Elf32_External_Sym *extsyms;
|
Elf32_External_Sym *extsyms;
|
int shndx, index;
|
int shndx, index;
|
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;
|
Elf32_External_Sym *esym, *esymend;
|
Elf32_External_Sym *esym, *esymend;
|
struct elf32_mn10300_link_hash_entry *sym_hash;
|
struct elf32_mn10300_link_hash_entry *sym_hash;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
|
|
shndx = _bfd_elf_section_from_bfd_section (abfd, 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;
|
|
|
/* 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 the number of bytes we are deleting. */
|
power larger than the number of bytes we are deleting. */
|
|
|
irelalign = NULL;
|
irelalign = NULL;
|
toaddr = sec->_cooked_size;
|
toaddr = sec->_cooked_size;
|
|
|
irel = elf_section_data (sec)->relocs;
|
irel = elf_section_data (sec)->relocs;
|
irelend = irel + sec->reloc_count;
|
irelend = irel + sec->reloc_count;
|
|
|
/* Actually delete the bytes. */
|
/* Actually delete the bytes. */
|
memmove (contents + addr, contents + addr + count, toaddr - addr - count);
|
memmove (contents + addr, contents + addr + count, toaddr - addr - count);
|
sec->_cooked_size -= count;
|
sec->_cooked_size -= count;
|
|
|
/* 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))
|
irel->r_offset -= count;
|
irel->r_offset -= count;
|
}
|
}
|
|
|
/* Adjust the local symbols defined in this section. */
|
/* Adjust the local symbols defined in this section. */
|
esym = extsyms;
|
esym = extsyms;
|
esymend = esym + symtab_hdr->sh_info;
|
esymend = esym + symtab_hdr->sh_info;
|
for (; esym < esymend; esym++)
|
for (; esym < esymend; esym++)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym isym;
|
|
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
|
|
if (isym.st_shndx == shndx
|
if (isym.st_shndx == shndx
|
&& isym.st_value > addr
|
&& isym.st_value > addr
|
&& isym.st_value < toaddr)
|
&& isym.st_value < toaddr)
|
{
|
{
|
isym.st_value -= count;
|
isym.st_value -= count;
|
bfd_elf32_swap_symbol_out (abfd, &isym, esym);
|
bfd_elf32_swap_symbol_out (abfd, &isym, esym);
|
}
|
}
|
}
|
}
|
|
|
/* Now adjust the global symbols defined in this section. */
|
/* Now adjust the global symbols defined in this section. */
|
esym = extsyms + symtab_hdr->sh_info;
|
esym = extsyms + symtab_hdr->sh_info;
|
esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
|
esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
|
for (index = 0; esym < esymend; esym++, index++)
|
for (index = 0; esym < esymend; esym++, index++)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym isym;
|
|
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
sym_hash = (struct elf32_mn10300_link_hash_entry *)
|
sym_hash = (struct elf32_mn10300_link_hash_entry *)
|
(elf_sym_hashes (abfd)[index]);
|
(elf_sym_hashes (abfd)[index]);
|
if (isym.st_shndx == shndx
|
if (isym.st_shndx == shndx
|
&& ((sym_hash)->root.root.type == bfd_link_hash_defined
|
&& ((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 == sec
|
&& (sym_hash)->root.root.u.def.section == sec
|
&& (sym_hash)->root.root.u.def.value > addr
|
&& (sym_hash)->root.root.u.def.value > addr
|
&& (sym_hash)->root.root.u.def.value < toaddr)
|
&& (sym_hash)->root.root.u.def.value < toaddr)
|
{
|
{
|
(sym_hash)->root.root.u.def.value -= count;
|
(sym_hash)->root.root.u.def.value -= count;
|
}
|
}
|
}
|
}
|
|
|
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 boolean
|
static boolean
|
mn10300_elf_symbol_address_p (abfd, sec, extsyms, addr)
|
mn10300_elf_symbol_address_p (abfd, sec, extsyms, addr)
|
bfd *abfd;
|
bfd *abfd;
|
asection *sec;
|
asection *sec;
|
Elf32_External_Sym *extsyms;
|
Elf32_External_Sym *extsyms;
|
bfd_vma addr;
|
bfd_vma addr;
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
int shndx;
|
int shndx;
|
Elf32_External_Sym *esym, *esymend;
|
Elf32_External_Sym *esym, *esymend;
|
struct elf32_mn10300_link_hash_entry **sym_hash, **sym_hash_end;
|
struct elf32_mn10300_link_hash_entry **sym_hash, **sym_hash_end;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
|
|
/* Examine all the symbols. */
|
/* Examine all the symbols. */
|
esym = extsyms;
|
esym = extsyms;
|
esymend = esym + symtab_hdr->sh_info;
|
esymend = esym + symtab_hdr->sh_info;
|
for (; esym < esymend; esym++)
|
for (; esym < esymend; esym++)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym isym;
|
|
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
|
|
if (isym.st_shndx == shndx
|
if (isym.st_shndx == shndx
|
&& isym.st_value == addr)
|
&& isym.st_value == addr)
|
return true;
|
return true;
|
}
|
}
|
|
|
sym_hash = (struct elf32_mn10300_link_hash_entry **) (elf_sym_hashes (abfd));
|
sym_hash = (struct elf32_mn10300_link_hash_entry **) (elf_sym_hashes (abfd));
|
sym_hash_end = (sym_hash
|
sym_hash_end = (sym_hash
|
+ (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
+ (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
- symtab_hdr->sh_info));
|
- symtab_hdr->sh_info));
|
for (; sym_hash < sym_hash_end; sym_hash++)
|
for (; sym_hash < sym_hash_end; sym_hash++)
|
{
|
{
|
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 == sec
|
&& (*sym_hash)->root.root.u.def.section == sec
|
&& (*sym_hash)->root.root.u.def.value == addr)
|
&& (*sym_hash)->root.root.u.def.value == addr)
|
return true;
|
return true;
|
}
|
}
|
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 (output_bfd, link_info, link_order,
|
mn10300_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
|
data, relocateable, symbols)
|
data, relocateable, symbols)
|
bfd *output_bfd;
|
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;
|
boolean relocateable;
|
boolean relocateable;
|
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;
|
Elf32_External_Sym *external_syms = NULL;
|
Elf32_External_Sym *external_syms = NULL;
|
Elf_Internal_Sym *internal_syms = NULL;
|
Elf_Internal_Sym *internal_syms = 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 (relocateable
|
if (relocateable
|
|| 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,
|
relocateable,
|
relocateable,
|
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,
|
input_section->_raw_size);
|
input_section->_raw_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)
|
{
|
{
|
Elf_Internal_Sym *isymp;
|
Elf_Internal_Sym *isymp;
|
asection **secpp;
|
asection **secpp;
|
Elf32_External_Sym *esym, *esymend;
|
Elf32_External_Sym *esym, *esymend;
|
|
|
if (symtab_hdr->contents != NULL)
|
if (symtab_hdr->contents != NULL)
|
external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
|
external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
|
else
|
else
|
{
|
{
|
external_syms = ((Elf32_External_Sym *)
|
external_syms = ((Elf32_External_Sym *)
|
bfd_malloc (symtab_hdr->sh_info
|
bfd_malloc (symtab_hdr->sh_info
|
* sizeof (Elf32_External_Sym)));
|
* sizeof (Elf32_External_Sym)));
|
if (external_syms == NULL && symtab_hdr->sh_info > 0)
|
if (external_syms == NULL && symtab_hdr->sh_info > 0)
|
goto error_return;
|
goto error_return;
|
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
|| (bfd_read (external_syms, sizeof (Elf32_External_Sym),
|
|| (bfd_read (external_syms, sizeof (Elf32_External_Sym),
|
symtab_hdr->sh_info, input_bfd)
|
symtab_hdr->sh_info, input_bfd)
|
!= (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
|
!= (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
(input_bfd, input_section, (PTR) NULL,
|
(input_bfd, input_section, (PTR) NULL,
|
(Elf_Internal_Rela *) NULL, false));
|
(Elf_Internal_Rela *) NULL, false));
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
|
|
internal_syms = ((Elf_Internal_Sym *)
|
internal_syms = ((Elf_Internal_Sym *)
|
bfd_malloc (symtab_hdr->sh_info
|
bfd_malloc (symtab_hdr->sh_info
|
* sizeof (Elf_Internal_Sym)));
|
* sizeof (Elf_Internal_Sym)));
|
if (internal_syms == NULL && symtab_hdr->sh_info > 0)
|
if (internal_syms == NULL && symtab_hdr->sh_info > 0)
|
goto error_return;
|
goto error_return;
|
|
|
sections = (asection **) bfd_malloc (symtab_hdr->sh_info
|
sections = (asection **) bfd_malloc (symtab_hdr->sh_info
|
* sizeof (asection *));
|
* sizeof (asection *));
|
if (sections == NULL && symtab_hdr->sh_info > 0)
|
if (sections == NULL && symtab_hdr->sh_info > 0)
|
goto error_return;
|
goto error_return;
|
|
|
isymp = internal_syms;
|
isymp = internal_syms;
|
secpp = sections;
|
secpp = sections;
|
esym = external_syms;
|
esym = external_syms;
|
esymend = esym + symtab_hdr->sh_info;
|
esymend = esym + symtab_hdr->sh_info;
|
for (; esym < esymend; ++esym, ++isymp, ++secpp)
|
for (; esym < esymend; ++esym, ++isymp, ++secpp)
|
{
|
{
|
asection *isec;
|
asection *isec;
|
|
|
bfd_elf32_swap_symbol_in (input_bfd, esym, isymp);
|
bfd_elf32_swap_symbol_in (input_bfd, esym, isymp);
|
|
|
if (isymp->st_shndx == SHN_UNDEF)
|
if (isymp->st_shndx == SHN_UNDEF)
|
isec = bfd_und_section_ptr;
|
isec = bfd_und_section_ptr;
|
else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
|
else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
|
isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
|
isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
|
else if (isymp->st_shndx == SHN_ABS)
|
else if (isymp->st_shndx == SHN_ABS)
|
isec = bfd_abs_section_ptr;
|
isec = bfd_abs_section_ptr;
|
else if (isymp->st_shndx == SHN_COMMON)
|
else if (isymp->st_shndx == SHN_COMMON)
|
isec = bfd_com_section_ptr;
|
isec = bfd_com_section_ptr;
|
else
|
else
|
{
|
{
|
/* Who knows? */
|
/* Who knows? */
|
isec = NULL;
|
isec = NULL;
|
}
|
}
|
|
|
*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,
|
internal_syms, sections))
|
internal_syms, sections))
|
goto error_return;
|
goto error_return;
|
|
|
if (sections != NULL)
|
if (sections != NULL)
|
free (sections);
|
free (sections);
|
sections = NULL;
|
sections = NULL;
|
if (internal_syms != NULL)
|
if (internal_syms != NULL)
|
free (internal_syms);
|
free (internal_syms);
|
internal_syms = NULL;
|
internal_syms = NULL;
|
if (external_syms != NULL && symtab_hdr->contents == NULL)
|
if (external_syms != NULL && symtab_hdr->contents == NULL)
|
free (external_syms);
|
free (external_syms);
|
external_syms = NULL;
|
external_syms = NULL;
|
if (internal_relocs != elf_section_data (input_section)->relocs)
|
if (internal_relocs != elf_section_data (input_section)->relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
internal_relocs = NULL;
|
internal_relocs = NULL;
|
}
|
}
|
|
|
return data;
|
return data;
|
|
|
error_return:
|
error_return:
|
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);
|
if (external_syms != NULL && symtab_hdr->contents == NULL)
|
if (external_syms != NULL && symtab_hdr->contents == NULL)
|
free (external_syms);
|
free (external_syms);
|
if (internal_syms != NULL)
|
if (internal_syms != NULL)
|
free (internal_syms);
|
free (internal_syms);
|
if (sections != NULL)
|
if (sections != NULL)
|
free (sections);
|
free (sections);
|
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 (entry, table, string)
|
elf32_mn10300_link_hash_newfunc (entry, table, string)
|
struct bfd_hash_entry *entry;
|
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 == (struct elf32_mn10300_link_hash_entry *) NULL)
|
if (ret == (struct elf32_mn10300_link_hash_entry *) NULL)
|
ret = ((struct elf32_mn10300_link_hash_entry *)
|
ret = ((struct elf32_mn10300_link_hash_entry *)
|
bfd_hash_allocate (table,
|
bfd_hash_allocate (table,
|
sizeof (struct elf32_mn10300_link_hash_entry)));
|
sizeof (struct elf32_mn10300_link_hash_entry)));
|
if (ret == (struct elf32_mn10300_link_hash_entry *) NULL)
|
if (ret == (struct elf32_mn10300_link_hash_entry *) 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 != (struct elf32_mn10300_link_hash_entry *) NULL)
|
if (ret != (struct elf32_mn10300_link_hash_entry *) NULL)
|
{
|
{
|
ret->direct_calls = 0;
|
ret->direct_calls = 0;
|
ret->stack_size = 0;
|
ret->stack_size = 0;
|
ret->movm_stack_size = 0;
|
ret->movm_stack_size = 0;
|
ret->flags = 0;
|
ret->flags = 0;
|
ret->movm_args = 0;
|
ret->movm_args = 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 (abfd)
|
elf32_mn10300_link_hash_table_create (abfd)
|
bfd *abfd;
|
bfd *abfd;
|
{
|
{
|
struct elf32_mn10300_link_hash_table *ret;
|
struct elf32_mn10300_link_hash_table *ret;
|
|
|
ret = ((struct elf32_mn10300_link_hash_table *)
|
ret = ((struct elf32_mn10300_link_hash_table *)
|
bfd_alloc (abfd, sizeof (struct elf32_mn10300_link_hash_table)));
|
bfd_alloc (abfd, sizeof (struct elf32_mn10300_link_hash_table)));
|
if (ret == (struct elf32_mn10300_link_hash_table *) NULL)
|
if (ret == (struct elf32_mn10300_link_hash_table *) 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))
|
{
|
{
|
bfd_release (abfd, ret);
|
bfd_release (abfd, ret);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
ret->flags = 0;
|
ret->flags = 0;
|
ret->static_hash_table
|
ret->static_hash_table
|
= ((struct elf32_mn10300_link_hash_table *)
|
= ((struct elf32_mn10300_link_hash_table *)
|
bfd_alloc (abfd, sizeof (struct elf_link_hash_table)));
|
bfd_alloc (abfd, sizeof (struct elf_link_hash_table)));
|
if (ret->static_hash_table == NULL)
|
if (ret->static_hash_table == NULL)
|
{
|
{
|
bfd_release (abfd, ret);
|
bfd_release (abfd, 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))
|
{
|
{
|
bfd_release (abfd, ret->static_hash_table);
|
bfd_release (abfd, ret->static_hash_table);
|
bfd_release (abfd, ret);
|
bfd_release (abfd, ret);
|
return NULL;
|
return NULL;
|
}
|
}
|
return &ret->root.root;
|
return &ret->root.root;
|
}
|
}
|
|
|
static int
|
static int
|
elf_mn10300_mach (flags)
|
elf_mn10300_mach (flags)
|
flagword flags;
|
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;
|
}
|
}
|
}
|
}
|
|
|
/* 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. */
|
|
|
void
|
void
|
_bfd_mn10300_elf_final_write_processing (abfd, linker)
|
_bfd_mn10300_elf_final_write_processing (abfd, linker)
|
bfd *abfd;
|
bfd *abfd;
|
boolean linker ATTRIBUTE_UNUSED;
|
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;
|
}
|
}
|
|
|
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;
|
}
|
}
|
|
|
boolean
|
boolean
|
_bfd_mn10300_elf_object_p (abfd)
|
_bfd_mn10300_elf_object_p (abfd)
|
bfd *abfd;
|
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. */
|
|
|
boolean
|
boolean
|
_bfd_mn10300_elf_merge_private_bfd_data (ibfd, obfd)
|
_bfd_mn10300_elf_merge_private_bfd_data (ibfd, obfd)
|
bfd *ibfd;
|
bfd *ibfd;
|
bfd *obfd;
|
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 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_CYGNUS_MN10300
|
#define ELF_MACHINE_CODE EM_CYGNUS_MN10300
|
#define ELF_MAXPAGESIZE 0x1000
|
#define ELF_MAXPAGESIZE 0x1000
|
|
|
#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_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 elf_symbol_leading_char '_'
|
#define elf_symbol_leading_char '_'
|
|
|
/* 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
|
|
|
#include "elf32-target.h"
|
#include "elf32-target.h"
|
|
|
