/* BFD back-end for Motorola MCore COFF/PE
|
/* BFD back-end for Motorola MCore COFF/PE
|
Copyright (C) 1999 Free Software Foundation, Inc.
|
Copyright (C) 1999 Free Software Foundation, Inc.
|
|
|
This file is part of BFD, the Binary File Descriptor library.
|
This file is part of BFD, the Binary File Descriptor library.
|
|
|
This program is free software; you can redistribute it and/or modify
|
This program is free software; you can redistribute it and/or modify
|
it under the terms of the GNU General Public License as published by
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 2 of the License, or
|
the Free Software Foundation; either version 2 of the License, or
|
(at your option) any later version.
|
(at your option) any later version.
|
|
|
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with this program; if not, write to the Free Software
|
along with this program; if not, write to the Free Software
|
Foundation, 59 Temple Place - Suite 330,
|
Foundation, 59 Temple Place - Suite 330,
|
Boston, MA 02111-1307, USA. */
|
Boston, MA 02111-1307, USA. */
|
|
|
#include "bfd.h"
|
#include "bfd.h"
|
#include "sysdep.h"
|
#include "sysdep.h"
|
#include "libbfd.h"
|
#include "libbfd.h"
|
#include "coff/mcore.h"
|
#include "coff/mcore.h"
|
#include "coff/internal.h"
|
#include "coff/internal.h"
|
#include "coff/pe.h"
|
#include "coff/pe.h"
|
#include "libcoff.h"
|
#include "libcoff.h"
|
|
|
#ifdef BADMAG
|
#ifdef BADMAG
|
#undef BADMAG
|
#undef BADMAG
|
#endif
|
#endif
|
#define BADMAG(x) MCOREBADMAG(x)
|
#define BADMAG(x) MCOREBADMAG(x)
|
|
|
#ifndef NUM_ELEM
|
#ifndef NUM_ELEM
|
#define NUM_ELEM(A) (sizeof (A) / sizeof (A)[0])
|
#define NUM_ELEM(A) (sizeof (A) / sizeof (A)[0])
|
#endif
|
#endif
|
|
|
/* This file is compiled more than once, but we only compile the
|
/* This file is compiled more than once, but we only compile the
|
final_link routine once. */
|
final_link routine once. */
|
extern boolean mcore_bfd_coff_final_link
|
extern boolean mcore_bfd_coff_final_link
|
PARAMS ((bfd *, struct bfd_link_info *));
|
PARAMS ((bfd *, struct bfd_link_info *));
|
|
|
static struct bfd_link_hash_table * coff_mcore_link_hash_table_create
|
static struct bfd_link_hash_table * coff_mcore_link_hash_table_create
|
PARAMS ((bfd *));
|
PARAMS ((bfd *));
|
static bfd_reloc_status_type mcore_coff_unsupported_reloc
|
static bfd_reloc_status_type mcore_coff_unsupported_reloc
|
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
|
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
|
static boolean coff_mcore_relocate_section
|
static boolean coff_mcore_relocate_section
|
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
|
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
|
struct internal_reloc *, struct internal_syment *, asection **));
|
struct internal_reloc *, struct internal_syment *, asection **));
|
static reloc_howto_type * mcore_coff_reloc_type_lookup
|
static reloc_howto_type * mcore_coff_reloc_type_lookup
|
PARAMS ((bfd *, bfd_reloc_code_real_type));
|
PARAMS ((bfd *, bfd_reloc_code_real_type));
|
static reloc_howto_type * coff_mcore_rtype_to_howto
|
static reloc_howto_type * coff_mcore_rtype_to_howto
|
PARAMS ((bfd *, asection *, struct internal_reloc *,
|
PARAMS ((bfd *, asection *, struct internal_reloc *,
|
struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *));
|
struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *));
|
|
|
/* The NT loader points the toc register to &toc + 32768, in order to
|
/* The NT loader points the toc register to &toc + 32768, in order to
|
use the complete range of a 16-bit displacement. We have to adjust
|
use the complete range of a 16-bit displacement. We have to adjust
|
for this when we fix up loads displaced off the toc reg. */
|
for this when we fix up loads displaced off the toc reg. */
|
#define TOC_LOAD_ADJUSTMENT (-32768)
|
#define TOC_LOAD_ADJUSTMENT (-32768)
|
#define TOC_SECTION_NAME ".private.toc"
|
#define TOC_SECTION_NAME ".private.toc"
|
|
|
/* The main body of code is in coffcode.h. */
|
/* The main body of code is in coffcode.h. */
|
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2
|
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2
|
|
|
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
|
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
|
from smaller values. Start with zero, widen, *then* decrement. */
|
from smaller values. Start with zero, widen, *then* decrement. */
|
#define MINUS_ONE (((bfd_vma)0) - 1)
|
#define MINUS_ONE (((bfd_vma)0) - 1)
|
|
|
|
|
static reloc_howto_type mcore_coff_howto_table[] =
|
static reloc_howto_type mcore_coff_howto_table[] =
|
{
|
{
|
/* Unused: */
|
/* Unused: */
|
HOWTO (IMAGE_REL_MCORE_ABSOLUTE,/* type */
|
HOWTO (IMAGE_REL_MCORE_ABSOLUTE,/* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont, /* dont complain_on_overflow */
|
complain_overflow_dont, /* dont complain_on_overflow */
|
NULL, /* special_function */
|
NULL, /* special_function */
|
"ABSOLUTE", /* name */
|
"ABSOLUTE", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0x00, /* src_mask */
|
0x00, /* src_mask */
|
0x00, /* dst_mask */
|
0x00, /* dst_mask */
|
false), /* pcrel_offset */
|
false), /* pcrel_offset */
|
|
|
HOWTO (IMAGE_REL_MCORE_ADDR32,/* type */
|
HOWTO (IMAGE_REL_MCORE_ADDR32,/* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
NULL, /* special_function */
|
NULL, /* special_function */
|
"ADDR32", /* name */
|
"ADDR32", /* name */
|
true, /* partial_inplace */
|
true, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
false), /* pcrel_offset */
|
false), /* pcrel_offset */
|
|
|
/* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions.
|
/* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions.
|
Should not appear in object files. */
|
Should not appear in object files. */
|
HOWTO (IMAGE_REL_MCORE_PCREL_IMM8BY4, /* type */
|
HOWTO (IMAGE_REL_MCORE_PCREL_IMM8BY4, /* type */
|
2, /* rightshift */
|
2, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
8, /* bitsize */
|
8, /* bitsize */
|
true, /* pc_relative */
|
true, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
mcore_coff_unsupported_reloc, /* special_function */
|
mcore_coff_unsupported_reloc, /* special_function */
|
"IMM8BY4", /* name */
|
"IMM8BY4", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
|
/* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
|
Span 2k instructions == 4k bytes.
|
Span 2k instructions == 4k bytes.
|
Only useful pieces at the relocated address are the opcode (5 bits) */
|
Only useful pieces at the relocated address are the opcode (5 bits) */
|
HOWTO (IMAGE_REL_MCORE_PCREL_IMM11BY2,/* type */
|
HOWTO (IMAGE_REL_MCORE_PCREL_IMM11BY2,/* type */
|
1, /* rightshift */
|
1, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
11, /* bitsize */
|
11, /* bitsize */
|
true, /* pc_relative */
|
true, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_signed, /* complain_on_overflow */
|
complain_overflow_signed, /* complain_on_overflow */
|
NULL, /* special_function */
|
NULL, /* special_function */
|
"IMM11BY2", /* name */
|
"IMM11BY2", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0x0, /* src_mask */
|
0x0, /* src_mask */
|
0x7ff, /* dst_mask */
|
0x7ff, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */
|
/* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */
|
HOWTO (IMAGE_REL_MCORE_PCREL_IMM4BY2, /* type */
|
HOWTO (IMAGE_REL_MCORE_PCREL_IMM4BY2, /* type */
|
1, /* rightshift */
|
1, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
4, /* bitsize */
|
4, /* bitsize */
|
true, /* pc_relative */
|
true, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
mcore_coff_unsupported_reloc, /* special_function */
|
mcore_coff_unsupported_reloc, /* special_function */
|
"IMM4BY2", /* name */
|
"IMM4BY2", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* 32-bit pc-relative. Eventually this will help support PIC code. */
|
/* 32-bit pc-relative. Eventually this will help support PIC code. */
|
HOWTO (IMAGE_REL_MCORE_PCREL_32,/* type */
|
HOWTO (IMAGE_REL_MCORE_PCREL_32,/* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
true, /* pc_relative */
|
true, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
NULL, /* special_function */
|
NULL, /* special_function */
|
"PCREL_32", /* name */
|
"PCREL_32", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0x0, /* src_mask */
|
0x0, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* Like PCREL_IMM11BY2, this relocation indicates that there is a
|
/* Like PCREL_IMM11BY2, this relocation indicates that there is a
|
'jsri' at the specified address. There is a separate relocation
|
'jsri' at the specified address. There is a separate relocation
|
entry for the literal pool entry that it references, but we
|
entry for the literal pool entry that it references, but we
|
might be able to change the jsri to a bsr if the target turns out
|
might be able to change the jsri to a bsr if the target turns out
|
to be close enough [even though we won't reclaim the literal pool
|
to be close enough [even though we won't reclaim the literal pool
|
entry, we'll get some runtime efficiency back]. Note that this
|
entry, we'll get some runtime efficiency back]. Note that this
|
is a relocation that we are allowed to safely ignore. */
|
is a relocation that we are allowed to safely ignore. */
|
HOWTO (IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2,/* type */
|
HOWTO (IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2,/* type */
|
1, /* rightshift */
|
1, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
11, /* bitsize */
|
11, /* bitsize */
|
true, /* pc_relative */
|
true, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_signed, /* complain_on_overflow */
|
complain_overflow_signed, /* complain_on_overflow */
|
NULL, /* special_function */
|
NULL, /* special_function */
|
"JSR_IMM11BY2", /* name */
|
"JSR_IMM11BY2", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0x0, /* src_mask */
|
0x0, /* src_mask */
|
0x7ff, /* dst_mask */
|
0x7ff, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
HOWTO (IMAGE_REL_MCORE_RVA, /* type */
|
HOWTO (IMAGE_REL_MCORE_RVA, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_signed, /* complain_on_overflow */
|
complain_overflow_signed, /* complain_on_overflow */
|
NULL, /* special_function */
|
NULL, /* special_function */
|
"MCORE_RVA", /* name */
|
"MCORE_RVA", /* name */
|
true, /* partial_inplace */
|
true, /* partial_inplace */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
true) /* pcrel_offset */
|
true) /* pcrel_offset */
|
};
|
};
|
|
|
/* Extend the coff_link_hash_table structure with a few M*Core specific fields.
|
/* Extend the coff_link_hash_table structure with a few M*Core specific fields.
|
This allows us to store global data here without actually creating any
|
This allows us to store global data here without actually creating any
|
global variables, which is a no-no in the BFD world. */
|
global variables, which is a no-no in the BFD world. */
|
typedef struct coff_mcore_link_hash_table
|
typedef struct coff_mcore_link_hash_table
|
{
|
{
|
/* The original coff_link_hash_table structure. MUST be first field. */
|
/* The original coff_link_hash_table structure. MUST be first field. */
|
struct coff_link_hash_table root;
|
struct coff_link_hash_table root;
|
|
|
bfd * bfd_of_toc_owner;
|
bfd * bfd_of_toc_owner;
|
long int global_toc_size;
|
long int global_toc_size;
|
long int import_table_size;
|
long int import_table_size;
|
long int first_thunk_address;
|
long int first_thunk_address;
|
long int thunk_size;
|
long int thunk_size;
|
}
|
}
|
mcore_hash_table;
|
mcore_hash_table;
|
|
|
/* Get the MCore coff linker hash table from a link_info structure. */
|
/* Get the MCore coff linker hash table from a link_info structure. */
|
#define coff_mcore_hash_table(info) \
|
#define coff_mcore_hash_table(info) \
|
((mcore_hash_table *) ((info)->hash))
|
((mcore_hash_table *) ((info)->hash))
|
|
|
/* Create an MCore coff linker hash table. */
|
/* Create an MCore coff linker hash table. */
|
static struct bfd_link_hash_table *
|
static struct bfd_link_hash_table *
|
coff_mcore_link_hash_table_create (abfd)
|
coff_mcore_link_hash_table_create (abfd)
|
bfd * abfd;
|
bfd * abfd;
|
{
|
{
|
mcore_hash_table * ret;
|
mcore_hash_table * ret;
|
|
|
ret = ((mcore_hash_table *) bfd_alloc (abfd, sizeof (* ret)));
|
ret = ((mcore_hash_table *) bfd_alloc (abfd, sizeof (* ret)));
|
if (ret == (mcore_hash_table *) NULL)
|
if (ret == (mcore_hash_table *) NULL)
|
return NULL;
|
return NULL;
|
|
|
if (! _bfd_coff_link_hash_table_init
|
if (! _bfd_coff_link_hash_table_init
|
(& ret->root, abfd, _bfd_coff_link_hash_newfunc))
|
(& ret->root, abfd, _bfd_coff_link_hash_newfunc))
|
{
|
{
|
bfd_release (abfd, ret);
|
bfd_release (abfd, ret);
|
return (struct bfd_link_hash_table *) NULL;
|
return (struct bfd_link_hash_table *) NULL;
|
}
|
}
|
|
|
ret->bfd_of_toc_owner = NULL;
|
ret->bfd_of_toc_owner = NULL;
|
ret->global_toc_size = 0;
|
ret->global_toc_size = 0;
|
ret->import_table_size = 0;
|
ret->import_table_size = 0;
|
ret->first_thunk_address = 0;
|
ret->first_thunk_address = 0;
|
ret->thunk_size = 0;
|
ret->thunk_size = 0;
|
|
|
return & ret->root.root;
|
return & ret->root.root;
|
}
|
}
|
|
|
/* Add an entry to the base file. */
|
/* Add an entry to the base file. */
|
static void
|
static void
|
mcore_emit_base_file_entry (info, output_bfd, input_section, reloc_offset)
|
mcore_emit_base_file_entry (info, output_bfd, input_section, reloc_offset)
|
struct bfd_link_info * info;
|
struct bfd_link_info * info;
|
bfd * output_bfd;
|
bfd * output_bfd;
|
asection * input_section;
|
asection * input_section;
|
bfd_vma reloc_offset;
|
bfd_vma reloc_offset;
|
{
|
{
|
bfd_vma addr = reloc_offset
|
bfd_vma addr = reloc_offset
|
- input_section->vma
|
- input_section->vma
|
+ input_section->output_offset
|
+ input_section->output_offset
|
+ input_section->output_section->vma;
|
+ input_section->output_section->vma;
|
|
|
if (coff_data (output_bfd)->pe)
|
if (coff_data (output_bfd)->pe)
|
addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
|
addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
|
|
|
fwrite (&addr, 1, sizeof (addr), (FILE *) info->base_file);
|
fwrite (&addr, 1, sizeof (addr), (FILE *) info->base_file);
|
}
|
}
|
|
|
/*ARGSUSED*/
|
/*ARGSUSED*/
|
static bfd_reloc_status_type
|
static bfd_reloc_status_type
|
mcore_coff_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
|
mcore_coff_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
|
output_bfd, error_message)
|
output_bfd, error_message)
|
bfd * abfd;
|
bfd * abfd;
|
arelent * reloc_entry;
|
arelent * reloc_entry;
|
asymbol * symbol ATTRIBUTE_UNUSED;
|
asymbol * symbol ATTRIBUTE_UNUSED;
|
PTR data ATTRIBUTE_UNUSED;
|
PTR data ATTRIBUTE_UNUSED;
|
asection * input_section ATTRIBUTE_UNUSED;
|
asection * input_section ATTRIBUTE_UNUSED;
|
bfd * output_bfd ATTRIBUTE_UNUSED;
|
bfd * output_bfd ATTRIBUTE_UNUSED;
|
char ** error_message ATTRIBUTE_UNUSED;
|
char ** error_message ATTRIBUTE_UNUSED;
|
{
|
{
|
BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
|
BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
|
|
|
_bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),
|
_bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),
|
bfd_get_filename (abfd),
|
bfd_get_filename (abfd),
|
reloc_entry->howto->name,
|
reloc_entry->howto->name,
|
reloc_entry->howto->type);
|
reloc_entry->howto->type);
|
|
|
return bfd_reloc_notsupported;
|
return bfd_reloc_notsupported;
|
}
|
}
|
|
|
|
|
/* A cheesy little macro to make the code a little more readable. */
|
/* A cheesy little macro to make the code a little more readable. */
|
#define HOW2MAP(bfd_rtype, mcore_rtype) \
|
#define HOW2MAP(bfd_rtype, mcore_rtype) \
|
case bfd_rtype: return & mcore_coff_howto_table [mcore_rtype]
|
case bfd_rtype: return & mcore_coff_howto_table [mcore_rtype]
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
mcore_coff_reloc_type_lookup (abfd, code)
|
mcore_coff_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;
|
{
|
{
|
switch (code)
|
switch (code)
|
{
|
{
|
HOW2MAP (BFD_RELOC_32, IMAGE_REL_MCORE_ADDR32);
|
HOW2MAP (BFD_RELOC_32, IMAGE_REL_MCORE_ADDR32);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM8BY4, IMAGE_REL_MCORE_PCREL_IMM8BY4);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM8BY4, IMAGE_REL_MCORE_PCREL_IMM8BY4);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM11BY2, IMAGE_REL_MCORE_PCREL_IMM11BY2);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM11BY2, IMAGE_REL_MCORE_PCREL_IMM11BY2);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM4BY2, IMAGE_REL_MCORE_PCREL_IMM4BY2);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM4BY2, IMAGE_REL_MCORE_PCREL_IMM4BY2);
|
HOW2MAP (BFD_RELOC_32_PCREL, IMAGE_REL_MCORE_PCREL_32);
|
HOW2MAP (BFD_RELOC_32_PCREL, IMAGE_REL_MCORE_PCREL_32);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2, IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2, IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2);
|
HOW2MAP (BFD_RELOC_RVA, IMAGE_REL_MCORE_RVA);
|
HOW2MAP (BFD_RELOC_RVA, IMAGE_REL_MCORE_RVA);
|
default:
|
default:
|
return NULL;
|
return NULL;
|
}
|
}
|
/*NOTREACHED*/
|
/*NOTREACHED*/
|
}
|
}
|
|
|
#undef HOW2MAP
|
#undef HOW2MAP
|
|
|
#define RTYPE2HOWTO(cache_ptr, dst) \
|
#define RTYPE2HOWTO(cache_ptr, dst) \
|
(cache_ptr)->howto = mcore_coff_howto_table + (dst)->r_type;
|
(cache_ptr)->howto = mcore_coff_howto_table + (dst)->r_type;
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
coff_mcore_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
|
coff_mcore_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
|
bfd * abfd ATTRIBUTE_UNUSED;
|
bfd * abfd ATTRIBUTE_UNUSED;
|
asection * sec;
|
asection * sec;
|
struct internal_reloc * rel;
|
struct internal_reloc * rel;
|
struct coff_link_hash_entry * h ATTRIBUTE_UNUSED;
|
struct coff_link_hash_entry * h ATTRIBUTE_UNUSED;
|
struct internal_syment * sym;
|
struct internal_syment * sym;
|
bfd_vma * addendp;
|
bfd_vma * addendp;
|
{
|
{
|
reloc_howto_type * howto;
|
reloc_howto_type * howto;
|
|
|
|
|
if (rel->r_type >= NUM_ELEM (mcore_coff_howto_table))
|
if (rel->r_type >= NUM_ELEM (mcore_coff_howto_table))
|
return NULL;
|
return NULL;
|
|
|
howto = mcore_coff_howto_table + rel->r_type;
|
howto = mcore_coff_howto_table + rel->r_type;
|
|
|
if (rel->r_type == IMAGE_REL_MCORE_RVA)
|
if (rel->r_type == IMAGE_REL_MCORE_RVA)
|
* addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
|
* addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
|
|
|
else if (howto->pc_relative)
|
else if (howto->pc_relative)
|
{
|
{
|
* addendp = sec->vma - 2; /* XXX guess - is this right ? */
|
* addendp = sec->vma - 2; /* XXX guess - is this right ? */
|
|
|
/* If the symbol is defined, then the generic code is going to
|
/* If the symbol is defined, then the generic code is going to
|
add back the symbol value in order to cancel out an
|
add back the symbol value in order to cancel out an
|
adjustment it made to the addend. However, we set the addend
|
adjustment it made to the addend. However, we set the addend
|
to 0 at the start of this function. We need to adjust here,
|
to 0 at the start of this function. We need to adjust here,
|
to avoid the adjustment the generic code will make. FIXME:
|
to avoid the adjustment the generic code will make. FIXME:
|
This is getting a bit hackish. */
|
This is getting a bit hackish. */
|
if (sym != NULL && sym->n_scnum != 0)
|
if (sym != NULL && sym->n_scnum != 0)
|
* addendp -= sym->n_value;
|
* addendp -= sym->n_value;
|
}
|
}
|
else
|
else
|
* addendp = 0;
|
* addendp = 0;
|
|
|
return howto;
|
return howto;
|
}
|
}
|
|
|
/* Return true if this relocation should appear in the output .reloc section.
|
/* Return true if this relocation should appear in the output .reloc section.
|
This function is referenced in pe_mkobject in peicode.h. */
|
This function is referenced in pe_mkobject in peicode.h. */
|
static boolean
|
static boolean
|
in_reloc_p (abfd, howto)
|
in_reloc_p (abfd, howto)
|
bfd * abfd ATTRIBUTE_UNUSED;
|
bfd * abfd ATTRIBUTE_UNUSED;
|
reloc_howto_type * howto;
|
reloc_howto_type * howto;
|
{
|
{
|
return ! howto->pc_relative && howto->type != IMAGE_REL_MCORE_RVA;
|
return ! howto->pc_relative && howto->type != IMAGE_REL_MCORE_RVA;
|
}
|
}
|
|
|
|
|
/* The reloc processing routine for the optimized COFF linker. */
|
/* The reloc processing routine for the optimized COFF linker. */
|
static boolean
|
static boolean
|
coff_mcore_relocate_section (output_bfd, info, input_bfd, input_section,
|
coff_mcore_relocate_section (output_bfd, info, input_bfd, input_section,
|
contents, relocs, syms, sections)
|
contents, relocs, syms, 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;
|
struct internal_reloc * relocs;
|
struct internal_reloc * relocs;
|
struct internal_syment * syms;
|
struct internal_syment * syms;
|
asection ** sections;
|
asection ** sections;
|
{
|
{
|
struct internal_reloc * rel;
|
struct internal_reloc * rel;
|
struct internal_reloc * relend;
|
struct internal_reloc * relend;
|
boolean hihalf;
|
boolean hihalf;
|
bfd_vma hihalf_val;
|
bfd_vma hihalf_val;
|
|
|
/* If we are performing a relocateable link, we don't need to do a
|
/* If we are performing a relocateable link, we don't need to do a
|
thing. The caller will take care of adjusting the reloc
|
thing. The caller will take care of adjusting the reloc
|
addresses and symbol indices. */
|
addresses and symbol indices. */
|
if (info->relocateable)
|
if (info->relocateable)
|
return true;
|
return true;
|
|
|
/* Check if we have the same endianess */
|
/* Check if we have the same endianess */
|
if ( input_bfd->xvec->byteorder != output_bfd->xvec->byteorder
|
if ( input_bfd->xvec->byteorder != output_bfd->xvec->byteorder
|
&& output_bfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
|
&& output_bfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%s: compiled for a %s endian system and target is %s endian.\n"),
|
(_("%s: compiled for a %s endian system and target is %s endian.\n"),
|
bfd_get_filename (input_bfd),
|
bfd_get_filename (input_bfd),
|
bfd_big_endian (input_bfd) ? "big" : "little",
|
bfd_big_endian (input_bfd) ? "big" : "little",
|
bfd_big_endian (output_bfd) ? "big" : "little");
|
bfd_big_endian (output_bfd) ? "big" : "little");
|
|
|
bfd_set_error (bfd_error_wrong_format);
|
bfd_set_error (bfd_error_wrong_format);
|
return false;
|
return false;
|
}
|
}
|
|
|
hihalf = false;
|
hihalf = false;
|
hihalf_val = 0;
|
hihalf_val = 0;
|
|
|
rel = relocs;
|
rel = relocs;
|
relend = rel + input_section->reloc_count;
|
relend = rel + input_section->reloc_count;
|
|
|
for (; rel < relend; rel++)
|
for (; rel < relend; rel++)
|
{
|
{
|
long symndx;
|
long symndx;
|
struct internal_syment * sym;
|
struct internal_syment * sym;
|
bfd_vma val;
|
bfd_vma val;
|
bfd_vma addend;
|
bfd_vma addend;
|
bfd_reloc_status_type rstat;
|
bfd_reloc_status_type rstat;
|
bfd_byte * loc;
|
bfd_byte * loc;
|
unsigned short r_type = rel->r_type;
|
unsigned short r_type = rel->r_type;
|
reloc_howto_type * howto = NULL;
|
reloc_howto_type * howto = NULL;
|
struct coff_link_hash_entry * h;
|
struct coff_link_hash_entry * h;
|
const char * my_name;
|
const char * my_name;
|
|
|
symndx = rel->r_symndx;
|
symndx = rel->r_symndx;
|
loc = contents + rel->r_vaddr - input_section->vma;
|
loc = contents + rel->r_vaddr - input_section->vma;
|
|
|
if (symndx == -1)
|
if (symndx == -1)
|
{
|
{
|
h = NULL;
|
h = NULL;
|
sym = NULL;
|
sym = NULL;
|
}
|
}
|
else
|
else
|
{
|
{
|
h = obj_coff_sym_hashes (input_bfd)[symndx];
|
h = obj_coff_sym_hashes (input_bfd)[symndx];
|
sym = syms + symndx;
|
sym = syms + symndx;
|
}
|
}
|
|
|
addend = 0;
|
addend = 0;
|
|
|
/* Get the howto and initialise the addend. */
|
/* Get the howto and initialise the addend. */
|
howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
|
howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
|
sym, & addend);
|
sym, & addend);
|
if (howto == NULL)
|
if (howto == NULL)
|
return false;
|
return false;
|
|
|
val = 0;
|
val = 0;
|
|
|
if (h == NULL)
|
if (h == NULL)
|
{
|
{
|
if (symndx == -1)
|
if (symndx == -1)
|
my_name = "*ABS*";
|
my_name = "*ABS*";
|
else
|
else
|
{
|
{
|
asection * sec = sections[symndx];
|
asection * sec = sections[symndx];
|
|
|
val = (sym->n_value
|
val = (sym->n_value
|
+ sec->output_section->vma
|
+ sec->output_section->vma
|
+ sec->output_offset);
|
+ sec->output_offset);
|
|
|
if (sym == NULL)
|
if (sym == NULL)
|
my_name = "*unknown*";
|
my_name = "*unknown*";
|
else if ( sym->_n._n_n._n_zeroes == 0
|
else if ( sym->_n._n_n._n_zeroes == 0
|
&& sym->_n._n_n._n_offset != 0)
|
&& sym->_n._n_n._n_offset != 0)
|
my_name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
|
my_name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
|
else
|
else
|
{
|
{
|
static char buf [SYMNMLEN + 1];
|
static char buf [SYMNMLEN + 1];
|
|
|
strncpy (buf, sym->_n._n_name, SYMNMLEN);
|
strncpy (buf, sym->_n._n_name, SYMNMLEN);
|
buf[SYMNMLEN] = '\0';
|
buf[SYMNMLEN] = '\0';
|
my_name = buf;
|
my_name = buf;
|
}
|
}
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if ( h->root.type == bfd_link_hash_defined
|
if ( h->root.type == bfd_link_hash_defined
|
|| h->root.type == bfd_link_hash_defweak)
|
|| h->root.type == bfd_link_hash_defweak)
|
{
|
{
|
asection * sec = h->root.u.def.section;
|
asection * sec = h->root.u.def.section;
|
|
|
val = (h->root.u.def.value
|
val = (h->root.u.def.value
|
+ sec->output_section->vma
|
+ sec->output_section->vma
|
+ sec->output_offset);
|
+ sec->output_offset);
|
}
|
}
|
else
|
else
|
{
|
{
|
if (! ((*info->callbacks->undefined_symbol)
|
if (! ((*info->callbacks->undefined_symbol)
|
(info, h->root.root.string, input_bfd, input_section,
|
(info, h->root.root.string, input_bfd, input_section,
|
rel->r_vaddr - input_section->vma, true)))
|
rel->r_vaddr - input_section->vma, true)))
|
return false;
|
return false;
|
}
|
}
|
|
|
my_name = h->root.root.string;
|
my_name = h->root.root.string;
|
}
|
}
|
|
|
rstat = bfd_reloc_ok;
|
rstat = bfd_reloc_ok;
|
|
|
/* Each case must do its own relocation, setting rstat appropriately. */
|
/* Each case must do its own relocation, setting rstat appropriately. */
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
default:
|
default:
|
_bfd_error_handler (_("%s: unsupported relocation type 0x%02x"),
|
_bfd_error_handler (_("%s: unsupported relocation type 0x%02x"),
|
bfd_get_filename (input_bfd), r_type);
|
bfd_get_filename (input_bfd), r_type);
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return false;
|
return false;
|
|
|
case IMAGE_REL_MCORE_ABSOLUTE:
|
case IMAGE_REL_MCORE_ABSOLUTE:
|
fprintf (stderr,
|
fprintf (stderr,
|
_("Warning: unsupported reloc %s <file %s, section %s>\n"),
|
_("Warning: unsupported reloc %s <file %s, section %s>\n"),
|
howto->name,
|
howto->name,
|
bfd_get_filename (input_bfd),
|
bfd_get_filename (input_bfd),
|
input_section->name);
|
input_section->name);
|
|
|
fprintf (stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n",
|
fprintf (stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n",
|
rel->r_symndx, my_name, (long) rel->r_vaddr,
|
rel->r_symndx, my_name, (long) rel->r_vaddr,
|
(unsigned long) rel->r_vaddr);
|
(unsigned long) rel->r_vaddr);
|
break;
|
break;
|
|
|
case IMAGE_REL_MCORE_PCREL_IMM8BY4:
|
case IMAGE_REL_MCORE_PCREL_IMM8BY4:
|
case IMAGE_REL_MCORE_PCREL_IMM11BY2:
|
case IMAGE_REL_MCORE_PCREL_IMM11BY2:
|
case IMAGE_REL_MCORE_PCREL_IMM4BY2:
|
case IMAGE_REL_MCORE_PCREL_IMM4BY2:
|
case IMAGE_REL_MCORE_PCREL_32:
|
case IMAGE_REL_MCORE_PCREL_32:
|
case IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2:
|
case IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2:
|
case IMAGE_REL_MCORE_ADDR32:
|
case IMAGE_REL_MCORE_ADDR32:
|
/* XXX fixme - shouldn't this be like the code for the RVA reloc ? */
|
/* XXX fixme - shouldn't this be like the code for the RVA reloc ? */
|
rstat = _bfd_relocate_contents (howto, input_bfd, val, loc);
|
rstat = _bfd_relocate_contents (howto, input_bfd, val, loc);
|
break;
|
break;
|
|
|
case IMAGE_REL_MCORE_RVA:
|
case IMAGE_REL_MCORE_RVA:
|
rstat = _bfd_final_link_relocate
|
rstat = _bfd_final_link_relocate
|
(howto, input_bfd,
|
(howto, input_bfd,
|
input_section, contents, rel->r_vaddr - input_section->vma,
|
input_section, contents, rel->r_vaddr - input_section->vma,
|
val, addend);
|
val, addend);
|
break;
|
break;
|
}
|
}
|
|
|
if (info->base_file)
|
if (info->base_file)
|
{
|
{
|
/* Emit a reloc if the backend thinks it needs it. */
|
/* Emit a reloc if the backend thinks it needs it. */
|
if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto))
|
if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto))
|
mcore_emit_base_file_entry (info, output_bfd, input_section, rel->r_vaddr);
|
mcore_emit_base_file_entry (info, output_bfd, input_section, rel->r_vaddr);
|
}
|
}
|
|
|
switch (rstat)
|
switch (rstat)
|
{
|
{
|
default:
|
default:
|
abort ();
|
abort ();
|
|
|
case bfd_reloc_ok:
|
case bfd_reloc_ok:
|
break;
|
break;
|
|
|
case bfd_reloc_overflow:
|
case bfd_reloc_overflow:
|
if (! ((*info->callbacks->reloc_overflow)
|
if (! ((*info->callbacks->reloc_overflow)
|
(info, my_name, howto->name,
|
(info, my_name, howto->name,
|
(bfd_vma) 0, input_bfd,
|
(bfd_vma) 0, input_bfd,
|
input_section, rel->r_vaddr - input_section->vma)))
|
input_section, rel->r_vaddr - input_section->vma)))
|
return false;
|
return false;
|
}
|
}
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
|
|
/* Tailor coffcode.h -- macro heaven. */
|
/* Tailor coffcode.h -- macro heaven. */
|
|
|
/* We use the special COFF backend linker, with our own special touch. */
|
/* We use the special COFF backend linker, with our own special touch. */
|
|
|
#define coff_bfd_reloc_type_lookup mcore_coff_reloc_type_lookup
|
#define coff_bfd_reloc_type_lookup mcore_coff_reloc_type_lookup
|
#define coff_relocate_section coff_mcore_relocate_section
|
#define coff_relocate_section coff_mcore_relocate_section
|
#define coff_rtype_to_howto coff_mcore_rtype_to_howto
|
#define coff_rtype_to_howto coff_mcore_rtype_to_howto
|
|
|
#define SELECT_RELOC(internal, howto) {internal.r_type = howto->type;}
|
#define SELECT_RELOC(internal, howto) {internal.r_type = howto->type;}
|
|
|
#define COFF_PAGE_SIZE 0x1000
|
#define COFF_PAGE_SIZE 0x1000
|
|
|
#include "coffcode.h"
|
#include "coffcode.h"
|
|
|
/* Forward declaration to initialise alterbative_target field. */
|
/* Forward declaration to initialise alterbative_target field. */
|
extern const bfd_target TARGET_LITTLE_SYM;
|
extern const bfd_target TARGET_LITTLE_SYM;
|
|
|
/* The transfer vectors that lead the outside world to all of the above. */
|
/* The transfer vectors that lead the outside world to all of the above. */
|
CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED, (SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 0, & TARGET_LITTLE_SYM)
|
CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED, (SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 0, & TARGET_LITTLE_SYM)
|
CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED, (SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 0, & TARGET_BIG_SYM)
|
CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED, (SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 0, & TARGET_BIG_SYM)
|
|
|