/* BFD back-end for Intel 386 COFF files.
- Copyright (C) 1990-2016 Free Software Foundation, Inc.
+ Copyright (C) 1990-2023 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
#include "coff/pe.h"
#endif
-#ifdef COFF_GO32_EXE
-#include "coff/go32exe.h"
-#endif
-
#ifndef bfd_pe_print_pdata
#define bfd_pe_print_pdata NULL
#endif
#include "libcoff.h"
+/* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
+#define OCTETS_PER_BYTE(ABFD, SEC) 1
+
static reloc_howto_type *coff_i386_rtype_to_howto
(bfd *, asection *, struct internal_reloc *,
struct coff_link_hash_entry *, struct internal_syment *,
arelent *reloc_entry,
asymbol *symbol,
void * data,
- asection *input_section ATTRIBUTE_UNUSED,
+ asection *input_section,
bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
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
+ PE and non-PE formats, but they are off by howto->size
bytes. For the external relocation, PE is very different
from others. See md_apply_fix3 () in gas/config/tc-i386.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);
+ diff = -bfd_get_reloc_size (howto);
else if (symbol->flags & BSF_WEAK)
diff = reloc_entry->addend - symbol->value;
else
if (diff != 0)
{
reloc_howto_type *howto = reloc_entry->howto;
- unsigned char *addr = (unsigned char *) data + reloc_entry->address;
+ bfd_size_type octets = (reloc_entry->address
+ * OCTETS_PER_BYTE (abfd, input_section));
+ unsigned char *addr = (unsigned char *) data + octets;
- switch (howto->size)
+ if (!bfd_reloc_offset_in_range (howto, abfd, input_section, octets))
+ return bfd_reloc_outofrange;
+
+ switch (bfd_get_reloc_size (howto))
{
- case 0:
+ case 1:
{
char x = bfd_get_8 (abfd, addr);
DOIT (x);
}
break;
- case 1:
+ case 2:
{
short x = bfd_get_16 (abfd, addr);
DOIT (x);
}
break;
- case 2:
+ case 4:
{
long x = bfd_get_32 (abfd, addr);
DOIT (x);
/* 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)
+static bool
+in_reloc_p (bfd *abfd ATTRIBUTE_UNUSED, reloc_howto_type *howto)
{
- return ! howto->pc_relative && howto->type != R_IMAGEBASE
- && howto->type != R_SECREL32;
+ return ! howto->pc_relative
+ && howto->type != R_IMAGEBASE
+ && howto->type != R_SECREL32
+ && howto->type != R_SECTION;
}
#endif /* COFF_WITH_PE */
#ifndef PCRELOFFSET
-#define PCRELOFFSET FALSE
+#define PCRELOFFSET false
#endif
static reloc_howto_type howto_table[] =
EMPTY_HOWTO (5),
HOWTO (R_DIR32, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 4, /* size */
32, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"dir32", /* name */
- TRUE, /* partial_inplace */
+ true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- TRUE), /* pcrel_offset */
+ true), /* pcrel_offset */
/* PE IMAGE_REL_I386_DIR32NB relocation (7). */
HOWTO (R_IMAGEBASE, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 4, /* size */
32, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"rva32", /* name */
- TRUE, /* partial_inplace */
+ true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
EMPTY_HOWTO (010),
EMPTY_HOWTO (011),
- EMPTY_HOWTO (012),
#ifdef COFF_WITH_PE
+ /* 16-bit word section relocation (012). */
+ HOWTO (R_SECTION, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ coff_i386_reloc, /* special_function */
+ "secidx", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ true), /* pcrel_offset */
/* 32-bit longword section relative relocation (013). */
HOWTO (R_SECREL32, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 4, /* size */
32, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"secrel32", /* name */
- TRUE, /* partial_inplace */
+ true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- TRUE), /* pcrel_offset */
+ true), /* pcrel_offset */
#else
+ EMPTY_HOWTO (012),
EMPTY_HOWTO (013),
#endif
EMPTY_HOWTO (014),
/* Byte relocation (017). */
HOWTO (R_RELBYTE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 1, /* size */
8, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"8", /* name */
- TRUE, /* partial_inplace */
+ true, /* partial_inplace */
0x000000ff, /* src_mask */
0x000000ff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* 16-bit word relocation (020). */
HOWTO (R_RELWORD, /* type */
0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 2, /* size */
16, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"16", /* name */
- TRUE, /* partial_inplace */
+ true, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* 32-bit longword relocation (021). */
HOWTO (R_RELLONG, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 4, /* size */
32, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"32", /* name */
- TRUE, /* partial_inplace */
+ true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* Byte PC relative relocation (022). */
HOWTO (R_PCRBYTE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 1, /* size */
8, /* bitsize */
- TRUE, /* pc_relative */
+ true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"DISP8", /* name */
- TRUE, /* partial_inplace */
+ true, /* partial_inplace */
0x000000ff, /* src_mask */
0x000000ff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* 16-bit word PC relative relocation (023). */
HOWTO (R_PCRWORD, /* type */
0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 2, /* size */
16, /* bitsize */
- TRUE, /* pc_relative */
+ true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"DISP16", /* name */
- TRUE, /* partial_inplace */
+ true, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
PCRELOFFSET), /* pcrel_offset */
/* 32-bit longword PC relative relocation (024). */
HOWTO (R_PCRLONG, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 4, /* size */
32, /* bitsize */
- TRUE, /* pc_relative */
+ true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"DISP32", /* name */
- TRUE, /* partial_inplace */
+ true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
PCRELOFFSET) /* pcrel_offset */
coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
coffsym = (obj_symbols (abfd) \
- + (cache_ptr->sym_ptr_ptr - symbols)); \
+ + (cache_ptr->sym_ptr_ptr - symbols)); \
else if (ptr) \
coffsym = coff_symbol_from (ptr); \
if (coffsym != (coff_symbol_type *) NULL \
#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. */
+/* The PE relocate section routine. We handle secidx relocations here,
+ as well as making sure that we don't do anything for a relocatable
+ link. */
-static bfd_boolean
+static bool
coff_pe_i386_relocate_section (bfd *output_bfd,
struct bfd_link_info *info,
bfd *input_bfd,
struct internal_syment *syms,
asection **sections)
{
+ struct internal_reloc *rel;
+ struct internal_reloc *relend;
+
if (bfd_link_relocatable (info))
- return TRUE;
+ return true;
+
+ rel = relocs;
+ relend = rel + input_section->reloc_count;
+
+ for (; rel < relend; rel++)
+ {
+ long symndx;
+ struct coff_link_hash_entry *h;
+ asection *sec, *s;
+ uint16_t idx = 0, i = 1;
+
+ if (rel->r_type != R_SECTION)
+ continue;
+
+ /* Make sure that _bfd_coff_generic_relocate_section won't parse
+ this reloc after us. */
+ rel->r_type = 0;
+
+ symndx = rel->r_symndx;
+
+ if (symndx < 0
+ || (unsigned long) symndx >= obj_raw_syment_count (input_bfd))
+ continue;
+
+ h = obj_coff_sym_hashes (input_bfd)[symndx];
+
+ if (h == NULL)
+ sec = sections[symndx];
+ else
+ {
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ /* Defined weak symbols are a GNU extension. */
+ sec = h->root.u.def.section;
+ }
+ else
+ {
+ sec = NULL;
+ }
+ }
+
+ if (!sec)
+ continue;
+
+ if (bfd_is_abs_section (sec))
+ continue;
+
+ if (discarded_section (sec))
+ continue;
+
+ s = output_bfd->sections;
+ while (s)
+ {
+ if (s == sec->output_section)
+ {
+ idx = i;
+ break;
+ }
+
+ i++;
+ s = s->next;
+ }
+
+ bfd_putl16 (idx, contents + rel->r_vaddr - input_section->vma);
+ }
return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd,
input_section, contents,
*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. */
+ 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;
}
#ifdef COFF_WITH_PE
case BFD_RELOC_32_SECREL:
return howto_table + R_SECREL32;
+ case BFD_RELOC_16_SECIDX:
+ return howto_table + R_SECTION;
#endif
default:
BFD_FAIL ();
a leading dot for local labels, so if TARGET_UNDERSCORE is defined
we treat all symbols starting with L as local. */
-static bfd_boolean
+static bool
coff_i386_is_local_label_name (bfd *abfd, const char *name)
{
if (name[0] == 'L')
- return TRUE;
+ return true;
return _bfd_coff_is_local_label_name (abfd, name);
}
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
+ TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
+#ifndef COFF_CHECK_FORMAT
+#define COFF_CHECK_FORMAT coff_object_p
+#endif
+#ifndef COFF_WRITE_CONTENTS
+#define COFF_WRITE_CONTENTS coff_write_object_contents
+#endif
+
/* Note that we allow an object file to be treated as a core file as well. */
- /* bfd_check_format */
-#ifdef COFF_CHECK_FORMAT
- {_bfd_dummy_target, COFF_CHECK_FORMAT,
- bfd_generic_archive_p, COFF_CHECK_FORMAT},
+
+ { /* bfd_check_format */
+ _bfd_dummy_target,
+ COFF_CHECK_FORMAT,
+ bfd_generic_archive_p,
+ COFF_CHECK_FORMAT
+ },
+ { /* bfd_set_format */
+ _bfd_bool_bfd_false_error,
+ coff_mkobject,
+ _bfd_generic_mkarchive,
+ _bfd_bool_bfd_false_error
+ },
+ { /* bfd_write_contents */
+ _bfd_bool_bfd_false_error,
+ COFF_WRITE_CONTENTS,
+ _bfd_write_archive_contents,
+ _bfd_bool_bfd_false_error
+ },
+
+ 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
+};
+
+#ifdef COFF_WITH_PE_BIGOBJ
+const bfd_target
+ TARGET_SYM_BIG =
+{
+ TARGET_NAME_BIG,
+ 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 | BFD_COMPRESS | BFD_DECOMPRESS ),
+
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
+#ifdef COFF_WITH_PE
+ | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING
+#endif
+ | SEC_CODE | SEC_DATA | SEC_EXCLUDE ),
+
+#ifdef TARGET_UNDERSCORE
+ TARGET_UNDERSCORE, /* leading underscore */
#else
- {_bfd_dummy_target, coff_object_p, bfd_generic_archive_p, coff_object_p},
+ 0, /* leading underscore */
#endif
- {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),
+ '/', /* ar_pad_char */
+ 15, /* ar_max_namelen */
+ 0, /* match priority. */
+ TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
+
+ 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_check_format */
+ _bfd_dummy_target,
+ COFF_CHECK_FORMAT,
+ bfd_generic_archive_p,
+ COFF_CHECK_FORMAT
+ },
+ { /* bfd_set_format */
+ _bfd_bool_bfd_false_error,
+ coff_mkobject,
+ _bfd_generic_mkarchive,
+ _bfd_bool_bfd_false_error
+ },
+ { /* bfd_write_contents */
+ _bfd_bool_bfd_false_error,
+ COFF_WRITE_CONTENTS,
+ _bfd_write_archive_contents,
+ _bfd_bool_bfd_false_error
+ },
+
+ 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
+ &bigobj_swap_table
};
+#endif
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