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-rw-r--r--bfd/coff-x86_64.c768
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diff --git a/bfd/coff-x86_64.c b/bfd/coff-x86_64.c
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+/* BFD back-end for AMD 64 COFF files.
+ Copyright 2006 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 "bfd.h"
+#include "sysdep.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
+
+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;
+#if defined(COFF_WITH_PE)
+ case BFD_RELOC_32_SECREL:
+ return howto_table + R_AMD64_SECREL;
+#endif
+ default:
+ BFD_FAIL ();
+ return 0;
+ }
+}
+
+#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
+};
generated by cgit v1.1 at 2024-12-05 00:20:36 +0000