Add support for the BFD target efi-app-x86_64.

This uses only GPL2 source code and is a requirement for a 64 bit EFI
boot loader.
This commit is contained in:
Rui Paulo 2010-09-29 14:41:03 +00:00
parent 851f59d7e2
commit c5c0eabc00
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=213274
6 changed files with 981 additions and 15 deletions

View File

@ -0,0 +1,785 @@
/* BFD back-end for AMD 64 COFF files.
Copyright 2006, 2007 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
Written by Kai Tietz, OneVision Software GmbH&CoKg. */
#ifndef COFF_WITH_pex64
#define COFF_WITH_pex64
#endif
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "coff/x86_64.h"
#include "coff/internal.h"
#include "coff/pe.h"
#include "libcoff.h"
#include "libiberty.h"
#define BADMAG(x) AMD64BADMAG(x)
#ifdef COFF_WITH_pex64
# undef AOUTSZ
# define AOUTSZ PEPAOUTSZ
# define PEAOUTHDR PEPAOUTHDR
#endif
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
/* The page size is a guess based on ELF. */
#define COFF_PAGE_SIZE 0x1000
/* For some reason when using AMD COFF the value stored in the .text
section for a reference to a common symbol is the value itself plus
any desired offset. Ian Taylor, Cygnus Support. */
/* If we are producing relocatable output, we need to do some
adjustments to the object file that are not done by the
bfd_perform_relocation function. This function is called by every
reloc type to make any required adjustments. */
static bfd_reloc_status_type
coff_amd64_reloc (bfd *abfd,
arelent *reloc_entry,
asymbol *symbol,
void * data,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
symvalue diff;
#if !defined(COFF_WITH_PE)
if (output_bfd == NULL)
return bfd_reloc_continue;
#endif
if (bfd_is_com_section (symbol->section))
{
#if !defined(COFF_WITH_PE)
/* We are relocating a common symbol. The current value in the
object file is ORIG + OFFSET, where ORIG is the value of the
common symbol as seen by the object file when it was compiled
(this may be zero if the symbol was undefined) and OFFSET is
the offset into the common symbol (normally zero, but may be
non-zero when referring to a field in a common structure).
ORIG is the negative of reloc_entry->addend, which is set by
the CALC_ADDEND macro below. We want to replace the value in
the object file with NEW + OFFSET, where NEW is the value of
the common symbol which we are going to put in the final
object file. NEW is symbol->value. */
diff = symbol->value + reloc_entry->addend;
#else
/* In PE mode, we do not offset the common symbol. */
diff = reloc_entry->addend;
#endif
}
else
{
/* For some reason bfd_perform_relocation always effectively
ignores the addend for a COFF target when producing
relocatable output. This seems to be always wrong for 386
COFF, so we handle the addend here instead. */
#if defined(COFF_WITH_PE)
if (output_bfd == NULL)
{
reloc_howto_type *howto = reloc_entry->howto;
/* Although PC relative relocations are very similar between
PE and non-PE formats, but they are off by 1 << howto->size
bytes. For the external relocation, PE is very different
from others. See md_apply_fix3 () in gas/config/tc-amd64.c.
When we link PE and non-PE object files together to
generate a non-PE executable, we have to compensate it
here. */
if(howto->pc_relative && howto->pcrel_offset)
diff = -(1 << howto->size);
else if(symbol->flags & BSF_WEAK)
diff = reloc_entry->addend - symbol->value;
else
diff = -reloc_entry->addend;
}
else
#endif
diff = reloc_entry->addend;
}
#if defined(COFF_WITH_PE)
/* FIXME: How should this case be handled? */
if (reloc_entry->howto->type == R_AMD64_IMAGEBASE
&& output_bfd != NULL
&& bfd_get_flavour (output_bfd) == bfd_target_coff_flavour)
diff -= pe_data (output_bfd)->pe_opthdr.ImageBase;
#endif
#define DOIT(x) \
x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
if (diff != 0)
{
reloc_howto_type *howto = reloc_entry->howto;
unsigned char *addr = (unsigned char *) data + reloc_entry->address;
switch (howto->size)
{
case 0:
{
char x = bfd_get_8 (abfd, addr);
DOIT (x);
bfd_put_8 (abfd, x, addr);
}
break;
case 1:
{
short x = bfd_get_16 (abfd, addr);
DOIT (x);
bfd_put_16 (abfd, (bfd_vma) x, addr);
}
break;
case 2:
{
long x = bfd_get_32 (abfd, addr);
DOIT (x);
bfd_put_32 (abfd, (bfd_vma) x, addr);
}
break;
case 4:
{
long long x = bfd_get_64 (abfd, addr);
DOIT (x);
bfd_put_64 (abfd, (bfd_vma) x, addr);
}
break;
default:
abort ();
}
}
/* Now let bfd_perform_relocation finish everything up. */
return bfd_reloc_continue;
}
#if defined(COFF_WITH_PE)
/* Return TRUE if this relocation should appear in the output .reloc
section. */
static bfd_boolean
in_reloc_p (bfd *abfd ATTRIBUTE_UNUSED, reloc_howto_type *howto)
{
return ! howto->pc_relative && howto->type != R_AMD64_IMAGEBASE;
}
#endif /* COFF_WITH_PE */
#ifndef PCRELOFFSET
#define PCRELOFFSET TRUE
#endif
static reloc_howto_type howto_table[] =
{
EMPTY_HOWTO (0),
HOWTO (R_AMD64_DIR64, /* type 1*/
0, /* rightshift */
4, /* size (0 = byte, 1 = short, 2 = long, 4 = long long) */
64, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_64", /* name */
TRUE, /* partial_inplace */
0xffffffffffffffffll, /* src_mask */
0xffffffffffffffffll, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_AMD64_DIR32, /* type 2 */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_32", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
TRUE), /* pcrel_offset */
/* PE IMAGE_REL_AMD64_ADDR32NB relocation (3). */
HOWTO (R_AMD64_IMAGEBASE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"rva32", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 32-bit longword PC relative relocation (4). */
HOWTO (R_AMD64_PCRLONG, /* type 4 */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_PC32", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
HOWTO (R_AMD64_PCRLONG_1, /* type 5 */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"DISP32+1", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
HOWTO (R_AMD64_PCRLONG_2, /* type 6 */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"DISP32+2", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
HOWTO (R_AMD64_PCRLONG_3, /* type 7 */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"DISP32+3", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
HOWTO (R_AMD64_PCRLONG_4, /* type 8 */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"DISP32+4", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
HOWTO (R_AMD64_PCRLONG_5, /* type 9 */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"DISP32+5", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
EMPTY_HOWTO (10), /* R_AMD64_SECTION 10 */
#if defined(COFF_WITH_PE)
/* 32-bit longword section relative relocation (11). */
HOWTO (R_AMD64_SECREL, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"secrel32", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
TRUE), /* pcrel_offset */
#else
EMPTY_HOWTO (11),
#endif
EMPTY_HOWTO (12),
EMPTY_HOWTO (13),
#ifndef DONT_EXTEND_AMD64
HOWTO (R_AMD64_PCRQUAD,
0, /* rightshift */
4, /* size (0 = byte, 1 = short, 2 = long) */
64, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_PC64", /* name */
TRUE, /* partial_inplace */
0xffffffffffffffffll, /* src_mask */
0xffffffffffffffffll, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
#else
EMPTY_HOWTO (14),
#endif
/* Byte relocation (15). */
HOWTO (R_RELBYTE, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_8", /* name */
TRUE, /* partial_inplace */
0x000000ff, /* src_mask */
0x000000ff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* 16-bit word relocation (16). */
HOWTO (R_RELWORD, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_16", /* name */
TRUE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* 32-bit longword relocation (17). */
HOWTO (R_RELLONG, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_32S", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* Byte PC relative relocation (18). */
HOWTO (R_PCRBYTE, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_PC8", /* name */
TRUE, /* partial_inplace */
0x000000ff, /* src_mask */
0x000000ff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* 16-bit word PC relative relocation (19). */
HOWTO (R_PCRWORD, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_PC16", /* name */
TRUE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* 32-bit longword PC relative relocation (20). */
HOWTO (R_PCRLONG, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_amd64_reloc, /* special_function */
"R_X86_64_PC32", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET) /* pcrel_offset */
};
/* Turn a howto into a reloc nunmber */
#define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
#define I386 1 /* Customize coffcode.h */
#define AMD64 1
#define RTYPE2HOWTO(cache_ptr, dst) \
((cache_ptr)->howto = \
((dst)->r_type < ARRAY_SIZE (howto_table)) \
? howto_table + (dst)->r_type \
: NULL)
/* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared
library. On some other COFF targets STYP_BSS is normally
STYP_NOLOAD. */
#define BSS_NOLOAD_IS_SHARED_LIBRARY
/* Compute the addend of a reloc. If the reloc is to a common symbol,
the object file contains the value of the common symbol. By the
time this is called, the linker may be using a different symbol
from a different object file with a different value. Therefore, we
hack wildly to locate the original symbol from this file so that we
can make the correct adjustment. This macro sets coffsym to the
symbol from the original file, and uses it to set the addend value
correctly. If this is not a common symbol, the usual addend
calculation is done, except that an additional tweak is needed for
PC relative relocs.
FIXME: This macro refers to symbols and asect; these are from the
calling function, not the macro arguments. */
#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
{ \
coff_symbol_type *coffsym = NULL; \
\
if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
coffsym = (obj_symbols (abfd) \
+ (cache_ptr->sym_ptr_ptr - symbols)); \
else if (ptr) \
coffsym = coff_symbol_from (abfd, ptr); \
\
if (coffsym != NULL \
&& coffsym->native->u.syment.n_scnum == 0) \
cache_ptr->addend = - coffsym->native->u.syment.n_value; \
else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
&& ptr->section != NULL) \
cache_ptr->addend = - (ptr->section->vma + ptr->value); \
else \
cache_ptr->addend = 0; \
if (ptr && howto_table[reloc.r_type].pc_relative) \
cache_ptr->addend += asect->vma; \
}
/* We use the special COFF backend linker. For normal AMD64 COFF, we
can use the generic relocate_section routine. For PE, we need our
own routine. */
#if !defined(COFF_WITH_PE)
#define coff_relocate_section _bfd_coff_generic_relocate_section
#else /* COFF_WITH_PE */
/* The PE relocate section routine. The only difference between this
and the regular routine is that we don't want to do anything for a
relocatable link. */
static bfd_boolean
coff_pe_amd64_relocate_section (bfd *output_bfd,
struct bfd_link_info *info,
bfd *input_bfd,
asection *input_section,
bfd_byte *contents,
struct internal_reloc *relocs,
struct internal_syment *syms,
asection **sections)
{
if (info->relocatable)
return TRUE;
return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd,input_section, contents,relocs, syms, sections);
}
#define coff_relocate_section coff_pe_amd64_relocate_section
#endif /* COFF_WITH_PE */
/* Convert an rtype to howto for the COFF backend linker. */
static reloc_howto_type *
coff_amd64_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
asection *sec,
struct internal_reloc *rel,
struct coff_link_hash_entry *h,
struct internal_syment *sym,
bfd_vma *addendp)
{
reloc_howto_type *howto;
if (rel->r_type > ARRAY_SIZE (howto_table))
{
bfd_set_error (bfd_error_bad_value);
return NULL;
}
if (rel->r_type >= R_AMD64_PCRLONG_1 && rel->r_type <= R_AMD64_PCRLONG_5)
{
rel->r_vaddr += (bfd_vma)(rel->r_type-R_AMD64_PCRLONG);
rel->r_type = R_AMD64_PCRLONG;
}
howto = howto_table + rel->r_type;
#if defined(COFF_WITH_PE)
/* Cancel out code in _bfd_coff_generic_relocate_section. */
*addendp = 0;
#endif
if (howto->pc_relative)
*addendp += sec->vma;
if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
{
/* This is a common symbol. The section contents include the
size (sym->n_value) as an addend. The relocate_section
function will be adding in the final value of the symbol. We
need to subtract out the current size in order to get the
correct result. */
BFD_ASSERT (h != NULL);
#if !defined(COFF_WITH_PE)
/* I think we *do* want to bypass this. If we don't, I have
seen some data parameters get the wrong relocation address.
If I link two versions with and without this section bypassed
and then do a binary comparison, the addresses which are
different can be looked up in the map. The case in which
this section has been bypassed has addresses which correspond
to values I can find in the map. */
*addendp -= sym->n_value;
#endif
}
#if !defined(COFF_WITH_PE)
/* If the output symbol is common (in which case this must be a
relocatable link), we need to add in the final size of the
common symbol. */
if (h != NULL && h->root.type == bfd_link_hash_common)
*addendp += h->root.u.c.size;
#endif
#if defined(COFF_WITH_PE)
if (howto->pc_relative)
{
*addendp -= 4;
/* If the symbol is defined, then the generic code is going to
add back the symbol value in order to cancel out an
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 avoid the adjustment the generic code will make. FIXME:
This is getting a bit hackish. */
if (sym != NULL && sym->n_scnum != 0)
*addendp -= sym->n_value;
}
if (rel->r_type == R_AMD64_IMAGEBASE
&& (bfd_get_flavour (sec->output_section->owner) == bfd_target_coff_flavour))
*addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
if (rel->r_type == R_AMD64_SECREL)
{
bfd_vma osect_vma;
if (h && (h->type == bfd_link_hash_defined || h->type == bfd_link_hash_defweak))
osect_vma = h->root.u.def.section->output_section->vma;
else
{
asection *sec;
int i;
/* Sigh, the only way to get the section to offset against
is to find it the hard way. */
for (sec = abfd->sections, i = 1; i < sym->n_scnum; i++)
sec = sec->next;
osect_vma = sec->output_section->vma;
}
*addendp -= osect_vma;
}
#endif
return howto;
}
#define coff_bfd_reloc_type_lookup coff_amd64_reloc_type_lookup
#define coff_bfd_reloc_name_lookup coff_amd64_reloc_name_lookup
static reloc_howto_type *
coff_amd64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code)
{
switch (code)
{
case BFD_RELOC_RVA:
return howto_table + R_AMD64_IMAGEBASE;
case BFD_RELOC_32:
return howto_table + R_AMD64_DIR32;
case BFD_RELOC_64:
return howto_table + R_AMD64_DIR64;
case BFD_RELOC_64_PCREL:
#ifndef DONT_EXTEND_AMD64
return howto_table + R_AMD64_PCRQUAD;
#else
/* Fall through. */
#endif
case BFD_RELOC_32_PCREL:
return howto_table + R_AMD64_PCRLONG;
case BFD_RELOC_X86_64_32S:
return howto_table + R_RELLONG;
case BFD_RELOC_16:
return howto_table + R_RELWORD;
case BFD_RELOC_16_PCREL:
return howto_table + R_PCRWORD;
case BFD_RELOC_8:
return howto_table + R_RELBYTE;
case BFD_RELOC_8_PCREL:
return howto_table + R_PCRBYTE;
#ifdef notyet
#if defined(COFF_WITH_PE)
case BFD_RELOC_32_SECREL:
return howto_table + R_AMD64_SECREL;
#endif
#endif
default:
BFD_FAIL ();
return 0;
}
}
static reloc_howto_type *
coff_amd64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
const char *r_name)
{
unsigned int i;
for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++)
if (howto_table[i].name != NULL
&& strcasecmp (howto_table[i].name, r_name) == 0)
return &howto_table[i];
return NULL;
}
#define coff_rtype_to_howto coff_amd64_rtype_to_howto
#ifdef TARGET_UNDERSCORE
/* If amd64 gcc uses underscores for symbol names, then it does not use
a leading dot for local labels, so if TARGET_UNDERSCORE is defined
we treat all symbols starting with L as local. */
static bfd_boolean
coff_amd64_is_local_label_name (bfd *abfd, const char *name)
{
if (name[0] == 'L')
return TRUE;
return _bfd_coff_is_local_label_name (abfd, name);
}
#define coff_bfd_is_local_label_name coff_amd64_is_local_label_name
#endif /* TARGET_UNDERSCORE */
#include "coffcode.h"
#ifdef PE
#define amd64coff_object_p pe_bfd_object_p
#else
#define amd64coff_object_p coff_object_p
#endif
const bfd_target
#ifdef TARGET_SYM
TARGET_SYM =
#else
x86_64coff_vec =
#endif
{
#ifdef TARGET_NAME
TARGET_NAME,
#else
"coff-x86-64", /* Name. */
#endif
bfd_target_coff_flavour,
BFD_ENDIAN_LITTLE, /* Data byte order is little. */
BFD_ENDIAN_LITTLE, /* Header byte order is little. */
(HAS_RELOC | EXEC_P | /* Object flags. */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* Section flags. */
#if defined(COFF_WITH_PE)
| SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY
#endif
| SEC_CODE | SEC_DATA),
#ifdef TARGET_UNDERSCORE
TARGET_UNDERSCORE, /* Leading underscore. */
#else
0, /* Leading underscore. */
#endif
'/', /* Ar_pad_char. */
15, /* Ar_max_namelen. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Hdrs. */
/* Note that we allow an object file to be treated as a core file as well. */
{ _bfd_dummy_target, amd64coff_object_p, /* BFD_check_format. */
bfd_generic_archive_p, amd64coff_object_p },
{ bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format. */
bfd_false },
{ bfd_false, coff_write_object_contents, /* bfd_write_contents. */
_bfd_write_archive_contents, bfd_false },
BFD_JUMP_TABLE_GENERIC (coff),
BFD_JUMP_TABLE_COPY (coff),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
BFD_JUMP_TABLE_SYMBOLS (coff),
BFD_JUMP_TABLE_RELOCS (coff),
BFD_JUMP_TABLE_WRITE (coff),
BFD_JUMP_TABLE_LINK (coff),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
NULL,
COFF_SWAP_TABLE
};

View File

@ -0,0 +1,34 @@
/* BFD back-end for Intel64 UEFI application files.
Copyright 2007 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#include "sysdep.h"
#include "bfd.h"
#define TARGET_SYM bfd_efi_app_x86_64_vec
#define TARGET_NAME "efi-app-x86_64"
#define COFF_IMAGE_WITH_PE
#define COFF_WITH_PE
#define COFF_WITH_pep
#define PCRELOFFSET TRUE
#define TARGET_UNDERSCORE '_'
#define COFF_LONG_SECTION_NAMES
#define PEI_TARGET_SUBSYSTEM IMAGE_SUBSYSTEM_EFI_APPLICATION
#define PEI_FORCE_MINIMUM_ALIGNMENT
#include "coff-x86_64.c"

View File

@ -510,6 +510,7 @@ extern const bfd_target armpei_little_vec;
extern const bfd_target b_out_vec_big_host;
extern const bfd_target b_out_vec_little_host;
extern const bfd_target bfd_efi_app_ia32_vec;
extern const bfd_target bfd_efi_app_x86_64_vec;
extern const bfd_target bfd_efi_app_ia64_vec;
extern const bfd_target bfd_elf32_avr_vec;
extern const bfd_target bfd_elf32_big_generic_vec;
@ -794,6 +795,7 @@ static const bfd_target * const _bfd_target_vector[] = {
&b_out_vec_big_host,
&b_out_vec_little_host,
&bfd_efi_app_ia32_vec,
&bfd_efi_app_x86_64_vec,
#ifdef BFD64
&bfd_efi_app_ia64_vec,
#endif

View File

@ -1,7 +1,8 @@
/* Internal format of COFF object file data structures, for GNU BFD.
This file is part of BFD, the Binary File Descriptor library.
Copyright 2001 Free Software Foundation, Inc.
Copyright 1999, 2000, 2001, 2002, 2003, 2004. 2005, 2006, 2007, 2009
Free Software Foundation, Inc.
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
@ -15,7 +16,7 @@
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef GNU_COFF_INTERNAL_H
#define GNU_COFF_INTERNAL_H 1
@ -57,10 +58,19 @@ struct internal_extra_pe_filehdr
bfd_vma nt_signature; /* required NT signature, 0x4550 */
};
#define GO32_STUBSIZE 2048
struct internal_filehdr
{
struct internal_extra_pe_filehdr pe;
/* coff-stgo32 EXE stub header before BFD tdata has been allocated.
Its data is kept in INTERNAL_FILEHDR.GO32STUB afterwards.
F_GO32STUB is set iff go32stub contains a valid data. Artifical headers
created in BFD have no pre-set go32stub. */
char go32stub[GO32_STUBSIZE];
/* Standard coff internal info. */
unsigned short f_magic; /* magic number */
unsigned short f_nscns; /* number of sections */
@ -83,7 +93,8 @@ struct internal_filehdr
F_AR32W file is 32-bit big-endian
F_DYNLOAD rs/6000 aix: dynamically loadable w/imports & exports
F_SHROBJ rs/6000 aix: file is a shared object
F_DLL PE format DLL. */
F_DLL PE format DLL
F_GO32STUB Field go32stub contains valid data. */
#define F_RELFLG (0x0001)
#define F_EXEC (0x0002)
@ -95,6 +106,7 @@ struct internal_filehdr
#define F_DYNLOAD (0x1000)
#define F_SHROBJ (0x2000)
#define F_DLL (0x2000)
#define F_GO32STUB (0x4000)
/* Extra structure which is used in the optional header. */
typedef struct _IMAGE_DATA_DIRECTORY
@ -102,6 +114,22 @@ typedef struct _IMAGE_DATA_DIRECTORY
bfd_vma VirtualAddress;
long Size;
} IMAGE_DATA_DIRECTORY;
#define PE_EXPORT_TABLE 0
#define PE_IMPORT_TABLE 1
#define PE_RESOURCE_TABLE 2
#define PE_EXCEPTION_TABLE 3
#define PE_CERTIFICATE_TABLE 4
#define PE_BASE_RELOCATION_TABLE 5
#define PE_DEBUG_DATA 6
#define PE_ARCHITECTURE 7
#define PE_GLOBAL_PTR 8
#define PE_TLS_TABLE 9
#define PE_LOAD_CONFIG_TABLE 10
#define PE_BOUND_IMPORT_TABLE 11
#define PE_IMPORT_ADDRESS_TABLE 12
#define PE_DELAY_IMPORT_DESCRIPTOR 13
#define PE_CLR_RUNTIME_HEADER 14
/* DataDirectory[15] is currently reserved, so no define. */
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
/* Default image base for NT. */
@ -121,6 +149,28 @@ typedef struct _IMAGE_DATA_DIRECTORY
struct internal_extra_pe_aouthdr
{
/* FIXME: The following entries are in AOUTHDR. But they aren't
available internally in bfd. We add them here so that objdump
can dump them. */
/* The state of the image file */
short Magic;
/* Linker major version number */
char MajorLinkerVersion;
/* Linker minor version number */
char MinorLinkerVersion;
/* Total size of all code sections */
long SizeOfCode;
/* Total size of all initialized data sections */
long SizeOfInitializedData;
/* Total size of all uninitialized data sections */
long SizeOfUninitializedData;
/* Address of entry point relative to image base. */
bfd_vma AddressOfEntryPoint;
/* Address of the first code section relative to image base. */
bfd_vma BaseOfCode;
/* Address of the first data section relative to image base. */
bfd_vma BaseOfData;
/* PE stuff */
bfd_vma ImageBase; /* address of specific location in memory that
file is located, NT default 0x10000 */
@ -146,7 +196,7 @@ struct internal_extra_pe_aouthdr
3 - WINDOWS_CUI runs in Windows char sub. (console app)
5 - OS2_CUI runs in OS/2 character subsystem
7 - POSIX_CUI runs in Posix character subsystem */
short DllCharacteristics; /* flags for DLL init, use 0 */
unsigned short DllCharacteristics; /* flags for DLL init */
bfd_vma SizeOfStackReserve; /* amount of memory to reserve */
bfd_vma SizeOfStackCommit; /* amount of memory initially committed for
initial thread's stack, default is 0x1000 */
@ -234,12 +284,7 @@ struct internal_aouthdr
#define C_LINE 104 /* line # reformatted as symbol table entry */
#define C_ALIAS 105 /* duplicate tag */
#define C_HIDDEN 106 /* ext symbol in dmert public lib */
#if defined _AIX52 || defined AIX_WEAK_SUPPORT
#define C_WEAKEXT 111 /* weak symbol -- AIX standard. */
#else
#define C_WEAKEXT 127 /* weak symbol -- GNU extension. */
#endif
/* New storage classes for TI COFF */
#define C_UEXT 19 /* Tentative external definition */
@ -272,6 +317,12 @@ struct internal_aouthdr
#define C_HIDEXT 107 /* Un-named external symbol */
#define C_BINCL 108 /* Marks beginning of include file */
#define C_EINCL 109 /* Marks ending of include file */
#define C_AIX_WEAKEXT 111 /* AIX definition of C_WEAKEXT. */
#if defined _AIX52 || defined AIX_WEAK_SUPPORT
#undef C_WEAKEXT
#define C_WEAKEXT C_AIX_WEAKEXT
#endif
/* storage classes for stab symbols for RS/6000 */
#define C_GSYM (0x80)
@ -297,6 +348,10 @@ struct internal_aouthdr
#define C_THUMBEXTFUNC (C_THUMBEXT + 20) /* 150 */
#define C_THUMBSTATFUNC (C_THUMBSTAT + 20) /* 151 */
/* True if XCOFF symbols of class CLASS have auxillary csect information. */
#define CSECT_SYM_P(CLASS) \
((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT)
/********************** SECTION HEADER **********************/
#define SCNNMLEN (8)
@ -377,15 +432,15 @@ struct internal_syment
{
union
{
char _n_name[SYMNMLEN]; /* old COFF version */
char _n_name[SYMNMLEN]; /* old COFF version */
struct
{
long _n_zeroes; /* new == 0 */
long _n_offset; /* offset into string table */
long _n_zeroes; /* new == 0 */
long _n_offset; /* offset into string table */
} _n_n;
char *_n_nptr[2]; /* allows for overlaying */
} _n;
bfd_vma n_value; /* value of symbol */
bfd_vma n_value; /* value of symbol */
short n_scnum; /* section number */
unsigned short n_flags; /* copy of flags from filhdr */
unsigned short n_type; /* type and derived type */
@ -603,10 +658,30 @@ struct internal_reloc
unsigned long r_offset; /* Used by Alpha ECOFF, SPARC, others */
};
/* X86-64 relocations. */
#define R_AMD64_ABS 0 /* Reference is absolute, no relocation is necessary. */
#define R_AMD64_DIR64 1 /* 64-bit address (VA). */
#define R_AMD64_DIR32 2 /* 32-bit address (VA) R_DIR32. */
#define R_AMD64_IMAGEBASE 3 /* 32-bit absolute ref w/o base R_IMAGEBASE. */
#define R_AMD64_PCRLONG 4 /* 32-bit relative address from byte following reloc R_PCRLONG. */
#define R_AMD64_PCRLONG_1 5 /* 32-bit relative address from byte distance 1 from reloc. */
#define R_AMD64_PCRLONG_2 6 /* 32-bit relative address from byte distance 2 from reloc. */
#define R_AMD64_PCRLONG_3 7 /* 32-bit relative address from byte distance 3 from reloc. */
#define R_AMD64_PCRLONG_4 8 /* 32-bit relative address from byte distance 4 from reloc. */
#define R_AMD64_PCRLONG_5 9 /* 32-bit relative address from byte distance 5 from reloc. */
#define R_AMD64_SECTION 10 /* Section index. */
#define R_AMD64_SECREL 11 /* 32 bit offset from base of section containing target R_SECREL. */
#define R_AMD64_SECREL7 12 /* 7 bit unsigned offset from base of section containing target. */
#define R_AMD64_TOKEN 13 /* 32 bit metadata token. */
#define R_AMD64_PCRQUAD 14 /* Pseude PC64 relocation - Note: not specified by MS/AMD but need for gas pc-relative 64bit wide relocation generated by ELF. */
/* i386 Relocations. */
#define R_DIR16 1
#define R_REL24 5
#define R_DIR32 6
#define R_IMAGEBASE 7
#define R_SECREL32 11
#define R_RELBYTE 15
#define R_RELWORD 16
#define R_RELLONG 17
@ -713,6 +788,11 @@ struct internal_reloc
#define R_IMM4H 0x24 /* high nibble */
#define R_DISP7 0x25 /* djnz displacement */
/* Z80 modes */
#define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */
#define R_IMM24 0x33 /* 24 bit abs */
/* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */
/* H8500 modes */
#define R_H8500_IMM8 1 /* 8 bit immediate */

View File

@ -0,0 +1,56 @@
/* COFF information for AMD 64.
Copyright 2006, 2009 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
Written by Kai Tietz, OneVision Software GmbH&CoKg. */
#define L_LNNO_SIZE 2
#define INCLUDE_COMDAT_FIELDS_IN_AUXENT
#include "coff/external.h"
#define COFF_PAGE_SIZE 0x1000
#define AMD64MAGIC 0x8664
#define AMD64BADMAG(x) ((x).f_magic != AMD64MAGIC)
#define IMAGE_NT_OPTIONAL_HDR64_MAGIC 0x20b
#define OMAGIC 0404 /* Object files, eg as output. */
#define ZMAGIC IMAGE_NT_OPTIONAL_HDR64_MAGIC /* Demand load format, eg normal ld output 0x10b. */
#define STMAGIC 0401 /* Target shlib. */
#define SHMAGIC 0443 /* Host shlib. */
/* Define some NT default values. */
/* #define NT_IMAGE_BASE 0x400000 moved to internal.h. */
#define NT_SECTION_ALIGNMENT 0x1000
#define NT_FILE_ALIGNMENT 0x200
#define NT_DEF_RESERVE 0x100000
#define NT_DEF_COMMIT 0x1000
/* Relocation directives. */
struct external_reloc
{
char r_vaddr[4];
char r_symndx[4];
char r_type[2];
};
#define RELOC struct external_reloc
#define RELSZ 10

View File

@ -8,19 +8,28 @@ I386_VECS:= ${DEFAULT_VECTOR} # ${VECS}
DEFAULT_VECTOR= bfd_elf64_x86_64_vec
SRCS+= elf64-amd64-fbsd.c \
efi-app-x86_64.c \
efi-app-ia32.c \
elf64.c \
elf64-gen.c \
elf64-target.h
elf64-target.h \
pepigen.c # peigen.c
VECS= ${DEFAULT_VECTOR} \
bfd_efi_app_x86_64_vec \
bfd_efi_app_ia32_vec \
${I386_VECS}
CLEANFILES+= elf64-amd64-fbsd.c
CLEANFILES+= elf64-amd64-fbsd.c pepigen.c peigen.c
elf64-amd64-fbsd.c: ${.CURDIR}/elf-fbsd-brand.c ${SRCDIR}/bfd/elf64-x86-64.c
cat ${.ALLSRC:M*elf-fbsd-brand.c} > ${.TARGET}
echo "#define elf_backend_post_process_headers elf_fbsd_post_process_headers" \
>> ${.TARGET}
cat ${.ALLSRC:M*elf64-x86-64.c} >> ${.TARGET}
pepigen.c: peXXigen.c
sed -e s/XX/pep/g ${.ALLSRC} > ${.TARGET}
peigen.c: peXXigen.c
sed -e s/XX/pe/g ${.ALLSRC} > ${.TARGET}