/* BFD back-end for Intel 386 COFF files.
- Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
- Free Software Foundation, Inc.
+ Copyright (C) 1990-2017 Free Software Foundation, Inc.
Written by Cygnus Support.
-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
-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 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 3 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.
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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 "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "coff/i386.h"
#include "coff/go32exe.h"
#endif
+#ifndef bfd_pe_print_pdata
+#define bfd_pe_print_pdata NULL
+#endif
+
#include "libcoff.h"
-static bfd_reloc_status_type coff_i386_reloc
- PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static reloc_howto_type *coff_i386_rtype_to_howto
- PARAMS ((bfd *, asection *, struct internal_reloc *,
- struct coff_link_hash_entry *, struct internal_syment *,
- bfd_vma *));
+ (bfd *, asection *, struct internal_reloc *,
+ struct coff_link_hash_entry *, struct internal_syment *,
+ bfd_vma *);
static reloc_howto_type *coff_i386_reloc_type_lookup
- PARAMS ((bfd *, bfd_reloc_code_real_type));
-static const bfd_target *i3coff_object_p PARAMS ((bfd *));
+ (bfd *, bfd_reloc_code_real_type);
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
/* The page size is a guess based on ELF. */
section for a reference to a common symbol is the value itself plus
any desired offset. Ian Taylor, Cygnus Support. */
-/* If we are producing relocateable output, we need to do some
+/* 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_i386_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
- error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section ATTRIBUTE_UNUSED;
- bfd *output_bfd;
- char **error_message ATTRIBUTE_UNUSED;
+coff_i386_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;
+#ifndef COFF_WITH_PE
if (output_bfd == (bfd *) NULL)
return bfd_reloc_continue;
+#endif
if (bfd_is_com_section (symbol->section))
{
{
/* For some reason bfd_perform_relocation always effectively
ignores the addend for a COFF target when producing
- relocateable output. This seems to be always wrong for 386
+ relocatable output. This seems to be always wrong for 386
COFF, so we handle the addend here instead. */
- diff = reloc_entry->addend;
+#ifdef COFF_WITH_PE
+ if (output_bfd == (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-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);
+ else if (symbol->flags & BSF_WEAK)
+ diff = reloc_entry->addend - symbol->value;
+ else
+ diff = -reloc_entry->addend;
+ }
+ else
+#endif
+ diff = reloc_entry->addend;
}
#ifdef COFF_WITH_PE
/* FIXME: How should this case be handled? */
- if (reloc_entry->howto->type == R_IMAGEBASE)
+ if (reloc_entry->howto->type == R_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;
+ if (diff != 0)
+ {
+ reloc_howto_type *howto = reloc_entry->howto;
+ unsigned char *addr = (unsigned char *) data + reloc_entry->address;
- switch (howto->size)
+ switch (howto->size)
+ {
+ case 0:
{
- 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, x, addr);
- }
- break;
-
- case 2:
- {
- long x = bfd_get_32 (abfd, addr);
- DOIT (x);
- bfd_put_32 (abfd, x, addr);
- }
- break;
-
- default:
- abort ();
+ 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;
+
+ default:
+ abort ();
+ }
+ }
/* Now let bfd_perform_relocation finish everything up. */
return bfd_reloc_continue;
}
#ifdef COFF_WITH_PE
-
-/* Return true if this relocation should appear in the output .reloc
+/* Return TRUE if this relocation should appear in the output .reloc
section. */
-static boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *));
-
-static boolean in_reloc_p (abfd, howto)
- bfd *abfd ATTRIBUTE_UNUSED;
- reloc_howto_type *howto;
+static bfd_boolean in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED,
+ reloc_howto_type *howto)
{
- return ! howto->pc_relative && howto->type != R_IMAGEBASE;
+ return ! howto->pc_relative && howto->type != R_IMAGEBASE
+ && howto->type != R_SECREL32;
}
-
#endif /* COFF_WITH_PE */
#ifndef PCRELOFFSET
-#define PCRELOFFSET false
+#define PCRELOFFSET FALSE
#endif
static reloc_howto_type howto_table[] =
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
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) */
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
+ /* 32-bit longword section relative relocation (013). */
+ HOWTO (R_SECREL32, /* 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_i386_reloc, /* special_function */
+ "secrel32", /* name */
+ TRUE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+#else
EMPTY_HOWTO (013),
+#endif
EMPTY_HOWTO (014),
EMPTY_HOWTO (015),
EMPTY_HOWTO (016),
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
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 */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
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 */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
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 */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
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 */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
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 */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
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 */
};
+#define NUM_HOWTOS (sizeof (howto_table) / sizeof (howto_table[0]))
+
/* Turn a howto into a reloc nunmber */
#define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
#define BADMAG(x) I386BADMAG(x)
#define I386 1 /* Customize coffcode.h */
-#define RTYPE2HOWTO(cache_ptr, dst) \
- ((cache_ptr)->howto = \
- ((dst)->r_type < sizeof (howto_table) / sizeof (howto_table[0]) \
- ? howto_table + (dst)->r_type \
+#define RTYPE2HOWTO(cache_ptr, dst) \
+ ((cache_ptr)->howto = \
+ ((dst)->r_type < NUM_HOWTOS \
+ ? howto_table + (dst)->r_type \
: NULL))
/* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared
coffsym = (obj_symbols (abfd) \
+ (cache_ptr->sym_ptr_ptr - symbols)); \
else if (ptr) \
- coffsym = coff_symbol_from (abfd, ptr); \
+ coffsym = coff_symbol_from (ptr); \
if (coffsym != (coff_symbol_type *) NULL \
&& coffsym->native->u.syment.n_scnum == 0) \
cache_ptr->addend = - coffsym->native->u.syment.n_value; \
cache_ptr->addend = - (ptr->section->vma + ptr->value); \
else \
cache_ptr->addend = 0; \
- if (ptr && howto_table[reloc.r_type].pc_relative) \
+ if (ptr && reloc.r_type < NUM_HOWTOS \
+ && howto_table[reloc.r_type].pc_relative) \
cache_ptr->addend += asect->vma; \
}
/* 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
- relocateable link. */
-
-static boolean coff_pe_i386_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- struct internal_reloc *, struct internal_syment *, asection **));
-
-static boolean
-coff_pe_i386_relocate_section (output_bfd, info, input_bfd,
- input_section, contents, relocs, syms,
- sections)
- 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;
+ relocatable link. */
+
+static bfd_boolean
+coff_pe_i386_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->relocateable)
- return true;
+ if (bfd_link_relocatable (info))
+ return TRUE;
return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd,
input_section, contents,
/* Convert an rtype to howto for the COFF backend linker. */
static reloc_howto_type *
-coff_i386_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
- bfd *abfd ATTRIBUTE_UNUSED;
- asection *sec;
- struct internal_reloc *rel;
- struct coff_link_hash_entry *h;
- struct internal_syment *sym;
- bfd_vma *addendp;
+coff_i386_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 > sizeof (howto_table) / sizeof (howto_table[0]))
+ if (rel->r_type >= NUM_HOWTOS)
{
bfd_set_error (bfd_error_bad_value);
return NULL;
#ifndef COFF_WITH_PE
/* If the output symbol is common (in which case this must be a
- relocateable link), we need to add in the final size of the
+ 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;
*addendp -= sym->n_value;
}
- if (rel->r_type == R_IMAGEBASE)
+ if (rel->r_type == R_IMAGEBASE
+ && (bfd_get_flavour(sec->output_section->owner)
+ == bfd_target_coff_flavour))
{
*addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
}
+
+ /* PR 17099 - Absolute R_PCRLONG relocations do not need a symbol. */
+ if (rel->r_type == R_PCRLONG && sym == NULL)
+ *addendp -= rel->r_vaddr;
+ else
+ BFD_ASSERT (sym != NULL);
+
+ if (rel->r_type == R_SECREL32 && sym != NULL)
+ {
+ bfd_vma osect_vma;
+
+ if (h && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak))
+ osect_vma = h->root.u.def.section->output_section->vma;
+ else
+ {
+ asection *s;
+ int i;
+
+ /* Sigh, the only way to get the section to offset against
+ is to find it the hard way. */
+
+ for (s = abfd->sections, i = 1; i < sym->n_scnum; i++)
+ s = s->next;
+
+ osect_vma = s->output_section->vma;
+ }
+
+ *addendp -= osect_vma;
+ }
#endif
return howto;
}
#define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup
+#define coff_bfd_reloc_name_lookup coff_i386_reloc_name_lookup
static reloc_howto_type *
-coff_i386_reloc_type_lookup (abfd, code)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+coff_i386_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
switch (code)
{
return howto_table + R_RELBYTE;
case BFD_RELOC_8_PCREL:
return howto_table + R_PCRBYTE;
+#ifdef COFF_WITH_PE
+ case BFD_RELOC_32_SECREL:
+ return howto_table + R_SECREL32;
+#endif
default:
BFD_FAIL ();
return 0;
}
}
+static reloc_howto_type *
+coff_i386_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0; i < NUM_HOWTOS; 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_i386_rtype_to_howto
#ifdef TARGET_UNDERSCORE
a leading dot for local labels, so if TARGET_UNDERSCORE is defined
we treat all symbols starting with L as local. */
-static boolean coff_i386_is_local_label_name PARAMS ((bfd *, const char *));
-
-static boolean
-coff_i386_is_local_label_name (abfd, name)
- bfd *abfd;
- const char *name;
+static bfd_boolean
+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);
}
#ifdef TARGET_SYM
TARGET_SYM =
#else
- i386coff_vec =
+ i386_coff_vec =
#endif
{
#ifdef TARGET_NAME
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
+ 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_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING
#endif
- | SEC_CODE | SEC_DATA),
+ | SEC_CODE | SEC_DATA | SEC_EXCLUDE ),
#ifdef TARGET_UNDERSCORE
TARGET_UNDERSCORE, /* leading underscore */
#endif
'/', /* ar_pad_char */
15, /* ar_max_namelen */
+ 0, /* match priority. */
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 */
-/* Note that we allow an object file to be treated as a core file as well. */
- {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, coff_object_p},
+/* 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},
+#else
+ {_bfd_dummy_target, coff_object_p, bfd_generic_archive_p, coff_object_p},
+#endif
{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
bfd_false},
{bfd_false, coff_write_object_contents, /* bfd_write_contents */