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Added new files elflink.c, elflink.h, elfcore.h.

Browse Source 
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions.  Added a
pointer to that structure to the target back end data.  More work can be done
here.

Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf.  Updated most call sites, sometimes defined some macros.

Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior.  More work can probably be
done here too.

Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c.  Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h.  Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.

Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
This commit is contained in:
Ken Raeburn 1995-07-06 02:22:00 +00:00
parent 80c5739dbe
commit ede4eed483
19 changed files with 6824 additions and 6335 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
bfd/.Sanitize
View File

@ -141,6 +141,9 @@ elf64-sparc.c
elf64.c
elfxx-target.h
elfcode.h
elfcore.h
elflink.c
elflink.h
filemode.c
format.c
gen-aout.c

19
bfd/ChangeLog
View File

@ -1,3 +1,22 @@
Wed Jul 5 20:17:14 1995 Ken Raeburn <raeburn@cygnus.com>
* elfcore.h, elflink.h, elfcode.h, elf.c, elflink.c: Moved some
primarily size-independent code from elfcode.h to elf.c and new
file elflink.c; moved out other core- or linker-related routines
into other new .h files for clarity. Renamed many routines to
start with bfd_elf or _bfd_elf. Added a structure of
size-dependent but target-independent info to elfcode.h.
* Makefile.in: Build elflink.o. Update dependencies.
* libelf.h: Updated some declarations. Added a definition for the
new structure in elfcode.h. Added more fields to elf backend data
structure.
* elfxx-target.h: Refer to the appropriate size-dependent info.
* elf32-*.c: Changed some function names. Moved common
create_dynamic_sections code from m68k, sparc, and i386 support
into elflink.c. Define some new macros to fill in new fields of
back end data. Also clean up some "gcc -Wall" warnings regarding
unused or uninitialized variables.
Wed Jul 5 10:31:47 1995 Ian Lance Taylor <ian@cygnus.com>
* elf32-mips.c (mips_elf_object_p): Unconditionally set

8
bfd/Makefile.in
View File

@ -85,7 +85,7 @@ BFD_LIBS = \
archive.o archures.o bfd.o cache.o coffgen.o core.o \
format.o init.o libbfd.o opncls.o reloc.o \
section.o syms.o targets.o hash.o linker.o \
elf.o srec.o binary.o tekhex.o
elf.o elflink.o srec.o binary.o tekhex.o
# This list is alphabetized to make it easier to keep in sync
# with the decls and initializer in archures.c.
@ -714,7 +714,9 @@ mipsbsd.o: mipsbsd.c libaout.h $(INCDIR)/bfdlink.h \
cpu-sh.o: cpu-sh.c
elf.o: elf.c $(INCDIR)/bfdlink.h libelf.h $(INCDIR)/elf/common.h \
$(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h
elf32.o: elf32.c elfcode.h $(INCDIR)/bfdlink.h libelf.h \
elflink.o : elflink.c $(INCDIR)/bfdlink.h libelf.h $(INCDIR)/elf/common.h \
$(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h
elf32.o: elf32.c elfcode.h $(INCDIR)/bfdlink.h libelf.h elfcore.h elflink.h \
$(INCDIR)/elf/common.h $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h
elf32-sparc.o: elf32-sparc.c $(INCDIR)/bfdlink.h libelf.h \
$(INCDIR)/elf/common.h $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h \
@ -747,7 +749,7 @@ elf32-gen.o: elf32-gen.c libelf.h $(INCDIR)/elf/common.h \
elf32-ppc.o: elf32-ppc.c $(INCDIR)/bfdlink.h libelf.h \
$(INCDIR)/elf/common.h $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h \
$(INCDIR)/elf/ppc.h elf32-target.h
elf64.o: elf64.c elfcode.h $(INCDIR)/bfdlink.h libelf.h \
elf64.o: elf64.c elfcode.h $(INCDIR)/bfdlink.h libelf.h elfcore.h elflink.h \
$(INCDIR)/elf/common.h $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h
elf64-gen.o: elf64-gen.c libelf.h $(INCDIR)/elf/common.h \
$(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h $(INCDIR)/bfdlink.h \

2228
bfd/elf.c
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File diff suppressed because it is too large Load Diff

37
bfd/elf32-gen.c Normal file
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@ -0,0 +1,37 @@
/* Generic support for 32-bit ELF
Copyright 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libelf.h"
/* This does not include any relocations, but should be good enough
for GDB to read the file. */
#define TARGET_LITTLE_SYM bfd_elf32_little_generic_vec
#define TARGET_LITTLE_NAME "elf32-little"
#define TARGET_BIG_SYM bfd_elf32_big_generic_vec
#define TARGET_BIG_NAME "elf32-big"
#define ELF_ARCH bfd_arch_unknown
#define ELF_MACHINE_CODE EM_NONE
#define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
#define elf_info_to_howto _bfd_elf_no_info_to_howto
#include "elf32-target.h"

20
bfd/elf32-hppa.c
View File

@ -865,9 +865,9 @@ elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
sym_name = h->root.root.string;
else
{
sym_name = elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
sym_name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
if (sym_name == NULL)
return false;
if (*sym_name == '\0')
@ -1167,8 +1167,8 @@ elf32_hppa_set_section_contents (abfd, section, location, offset, count)
if (!strcmp (section->name, ".PARISC.symextn") && !symext_chain_size)
return true;
else
return bfd_elf32_set_section_contents (abfd, section, location,
offset, count);
return _bfd_elf_set_section_contents (abfd, section, location,
offset, count);
}
/* Translate from an elf into field into a howto relocation pointer. */
@ -2007,7 +2007,7 @@ elf32_hppa_read_symext_info (input_bfd, symtab_hdr, args_hash_table, local_syms)
hdr = elf_elfsections (input_bfd)[local_syms[current_index].st_shndx];
sym_sec = hdr->bfd_section;
sym_name = elf_string_from_elf_section (input_bfd,
sym_name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
local_syms[current_index].st_name);
len = strlen (sym_name) + 10;
@ -2529,7 +2529,7 @@ elf32_hppa_size_stubs (stub_bfd, output_bfd, link_info)
struct bfd_link_info *link_info;
{
bfd *input_bfd;
asection *section, *stub_sec;
asection *section, *stub_sec = 0;
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Sym *local_syms, *isym, **all_local_syms;
Elf32_External_Sym *ext_syms, *esym;
@ -2803,9 +2803,9 @@ elf32_hppa_size_stubs (stub_bfd, output_bfd, link_info)
sym = local_syms + r_index;
hdr = elf_elfsections (input_bfd)[sym->st_shndx];
sym_sec = hdr->bfd_section;
sym_name = elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
sym_name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
sym_value = (ELF_ST_TYPE (sym->st_info) == STT_SECTION
? 0 : sym->st_value);
destination = (sym_value

140
bfd/elf32-i386.c
View File

@ -29,10 +29,6 @@ static void elf_i386_info_to_howto
PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
static void elf_i386_info_to_howto_rel
PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
static boolean elf_i386_create_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf_i386_create_got_section
PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf_i386_check_relocs
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
@ -243,125 +239,6 @@ static const bfd_byte elf_i386_pic_plt_entry[PLT_ENTRY_SIZE] =
0, 0, 0, 0 /* replaced with offset to start of .plt. */
};
/* Create dynamic sections when linking against a dynamic object. */
static boolean
elf_i386_create_dynamic_sections (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
flagword flags;
register asection *s;
/* We need to create .plt, .rel.plt, .got, .got.plt, .dynbss, and
.rel.bss sections. */
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
s = bfd_make_section (abfd, ".plt");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY | SEC_CODE)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
s = bfd_make_section (abfd, ".rel.plt");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
if (! elf_i386_create_got_section (abfd, info))
return false;
/* The .dynbss section is a place to put symbols which are defined
by dynamic objects, are referenced by regular objects, and are
not functions. We must allocate space for them in the process
image and use a R_386_COPY reloc to tell the dynamic linker to
initialize them at run time. The linker script puts the .dynbss
section into the .bss section of the final image. */
s = bfd_make_section (abfd, ".dynbss");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
return false;
/* The .rel.bss section holds copy relocs. This section is not
normally needed. We need to create it here, though, so that the
linker will map it to an output section. We can't just create it
only if we need it, because we will not know whether we need it
until we have seen all the input files, and the first time the
main linker code calls BFD after examining all the input files
(size_dynamic_sections) the input sections have already been
mapped to the output sections. If the section turns out not to
be needed, we can discard it later. We will never need this
section when generating a shared object, since they do not use
copy relocs. */
if (! info->shared)
{
s = bfd_make_section (abfd, ".rel.bss");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
}
return true;
}
/* Create the .got section to hold the global offset table, and the
.got.plt section to hold procedure linkage table GOT entries. The
linker script will put .got.plt into the output .got section. */
static boolean
elf_i386_create_got_section (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
flagword flags;
register asection *s;
struct elf_link_hash_entry *h;
/* This function may be called more than once. */
if (bfd_get_section_by_name (abfd, ".got") != NULL)
return true;
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
s = bfd_make_section (abfd, ".got");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
s = bfd_make_section (abfd, ".got.plt");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
/* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the
.got.plt section, which will be placed at the start of the output
.got section. We don't do this in the linker script because we
don't want to define the symbol if we are not creating a global
offset table. */
h = NULL;
if (! (_bfd_generic_link_add_one_symbol
(info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0,
(const char *) NULL, false, get_elf_backend_data (abfd)->collect,
(struct bfd_link_hash_entry **) &h)))
return false;
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
h->type = STT_OBJECT;
if (info->shared
&& ! bfd_elf32_link_record_dynamic_symbol (info, h))
return false;
/* The first three global offset table entries are reserved. */
s->_raw_size += 3 * 4;
return true;
}
/* Look through the relocs for a section during the first phase, and
allocate space in the global offset table or procedure linkage
table. */
@ -417,7 +294,7 @@ elf_i386_check_relocs (abfd, info, sec, relocs)
case R_386_GOTOFF:
case R_386_GOTPC:
elf_hash_table (info)->dynobj = dynobj = abfd;
if (! elf_i386_create_got_section (dynobj, info))
if (! _bfd_elf_create_got_section (dynobj, info))
return false;
break;
@ -549,7 +426,7 @@ elf_i386_check_relocs (abfd, info, sec, relocs)
{
const char *name;
name = (elf_string_from_elf_section
name = (bfd_elf_string_from_elf_section
(abfd,
elf_elfheader (abfd)->e_shstrndx,
elf_section_data (sec)->rel_hdr.sh_name));
@ -1224,7 +1101,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section,
if (sreloc == NULL)
{
shared_name = (elf_string_from_elf_section
shared_name = (bfd_elf_string_from_elf_section
(input_bfd,
elf_elfheader (input_bfd)->e_shstrndx,
elf_section_data (input_section)->rel_hdr.sh_name));
@ -1308,9 +1185,9 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section,
name = h->root.root.string;
else
{
name = elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
if (name == NULL)
return false;
if (*name == '\0')
@ -1616,7 +1493,7 @@ elf_i386_finish_dynamic_sections (output_bfd, info)
#define bfd_elf32_bfd_reloc_type_lookup elf_i386_reloc_type_lookup
#define ELF_MAXPAGESIZE 0x1000
#define elf_backend_create_dynamic_sections \
elf_i386_create_dynamic_sections
_bfd_elf_create_dynamic_sections
#define elf_backend_check_relocs elf_i386_check_relocs
#define elf_backend_adjust_dynamic_symbol \
elf_i386_adjust_dynamic_symbol
@ -1627,5 +1504,8 @@ elf_i386_finish_dynamic_sections (output_bfd, info)
elf_i386_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
elf_i386_finish_dynamic_sections
#define elf_backend_want_got_plt 1
#define elf_backend_plt_readonly 0
#define elf_backend_want_plt_sym 0
#include "elf32-target.h"

33
bfd/elf32-i860.c Normal file
View File

@ -0,0 +1,33 @@
/* Intel 860 specific support for 32-bit ELF
Copyright 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libelf.h"
#define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
#define elf_info_to_howto _bfd_elf_no_info_to_howto
#define TARGET_BIG_SYM bfd_elf32_i860_vec
#define TARGET_BIG_NAME "elf32-i860"
#define ELF_ARCH bfd_arch_i860
#define ELF_MACHINE_CODE EM_860
#include "elf32-target.h"

140
bfd/elf32-m68k.c
View File

@ -29,10 +29,6 @@ static void rtype_to_howto
PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
static void rtype_to_howto_rel
PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
static boolean elf_m68k_create_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf_m68k_create_got_section
PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf_m68k_check_relocs
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
@ -211,125 +207,6 @@ static const bfd_byte elf_m68k_plt_entry[PLT_ENTRY_SIZE] =
0, 0, 0, 0 /* replaced with offset to start of .plt. */
};
/* Create dynamic sections when linking against a dynamic object. */
static boolean
elf_m68k_create_dynamic_sections (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
flagword flags;
register asection *s;
/* We need to create .plt, .rela.plt, .got, .got.plt, .dynbss, and
.rela.bss sections. */
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
s = bfd_make_section (abfd, ".plt");
if (s == NULL
|| !bfd_set_section_flags (abfd, s, flags | SEC_READONLY | SEC_CODE)
|| !bfd_set_section_alignment (abfd, s, 2))
return false;
s = bfd_make_section (abfd, ".rela.plt");
if (s == NULL
|| !bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| !bfd_set_section_alignment (abfd, s, 2))
return false;
if (!elf_m68k_create_got_section (abfd, info))
return false;
/* The .dynbss section is a place to put symbols which are defined
by dynamic objects, are referenced by regular objects, and are
not functions. We must allocate space for them in the process
image and use a R_68K_COPY reloc to tell the dynamic linker to
initialize them at run time. The linker script puts the .dynbss
section into the .bss section of the final image. */
s = bfd_make_section (abfd, ".dynbss");
if (s == NULL
|| !bfd_set_section_flags (abfd, s, SEC_ALLOC))
return false;
/* The .rela.bss section holds copy relocs. This section is not
normally needed. We need to create it here, though, so that the
linker will map it to an output section. We can't just create it
only if we need it, because we will not know whether we need it
until we have seen all the input files, and the first time the
main linker code calls BFD after examining all the input files
(size_dynamic_sections) the input sections have already been
mapped to the output sections. If the section turns out not to
be needed, we can discard it later. We will never need this
section when generating a shared object, since they do not use
copy relocs. */
if (!info->shared)
{
s = bfd_make_section (abfd, ".rela.bss");
if (s == NULL
|| !bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| !bfd_set_section_alignment (abfd, s, 2))
return false;
}
return true;
}
/* Create the .got section to hold the global offset table, and the
.got.plt section to hold procedure linkage table GOT entries. The
linker script will put .got.plt into the output .got section. */
static boolean
elf_m68k_create_got_section (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
flagword flags;
register asection *s;
struct elf_link_hash_entry *h;
/* This function may be called more than once. */
if (bfd_get_section_by_name (abfd, ".got") != NULL)
return true;
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
s = bfd_make_section (abfd, ".got");
if (s == NULL
|| !bfd_set_section_flags (abfd, s, flags)
|| !bfd_set_section_alignment (abfd, s, 2))
return false;
s = bfd_make_section (abfd, ".got.plt");
if (s == NULL
|| !bfd_set_section_flags (abfd, s, flags)
|| !bfd_set_section_alignment (abfd, s, 2))
return false;
/* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the
.got.plt section, which will be placed at the start of the output
.got section. We don't do this in the linker script because we
don't want to define the symbol if we are not creating a global
offset table. */
h = NULL;
if (!(_bfd_generic_link_add_one_symbol
(info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0,
(const char *) NULL, false, get_elf_backend_data (abfd)->collect,
(struct bfd_link_hash_entry **) &h)))
return false;
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
h->type = STT_OBJECT;
if (info->shared
&& !bfd_elf32_link_record_dynamic_symbol (info, h))
return false;
/* The first three global offset table entries are reserved. */
s->_raw_size += 3 * 4;
return true;
}
/* Look through the relocs for a section during the first phase, and
allocate space in the global offset table or procedure linkage
table. */
@ -394,7 +271,7 @@ elf_m68k_check_relocs (abfd, info, sec, relocs)
{
/* Create the .got section. */
elf_hash_table (info)->dynobj = dynobj = abfd;
if (!elf_m68k_create_got_section (dynobj, info))
if (!_bfd_elf_create_got_section (dynobj, info))
return false;
}
@ -523,7 +400,7 @@ elf_m68k_check_relocs (abfd, info, sec, relocs)
{
const char *name;
name = (elf_string_from_elf_section
name = (bfd_elf_string_from_elf_section
(abfd,
elf_elfheader (abfd)->e_shstrndx,
elf_section_data (sec)->rel_hdr.sh_name));
@ -1275,7 +1152,7 @@ elf_m68k_relocate_section (output_bfd, info, input_bfd, input_section,
{
const char *name;
name = (elf_string_from_elf_section
name = (bfd_elf_string_from_elf_section
(input_bfd,
elf_elfheader (input_bfd)->e_shstrndx,
elf_section_data (input_section)->rel_hdr.sh_name));
@ -1374,9 +1251,9 @@ elf_m68k_relocate_section (output_bfd, info, input_bfd, input_section,
name = h->root.root.string;
else
{
name = elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
if (name == NULL)
return false;
if (*name == '\0')
@ -1674,7 +1551,7 @@ elf_m68k_finish_dynamic_sections (output_bfd, info)
#define ELF_MACHINE_CODE EM_68K
#define ELF_MAXPAGESIZE 0x2000
#define elf_backend_create_dynamic_sections \
elf_m68k_create_dynamic_sections
_bfd_elf_create_dynamic_sections
#define elf_backend_check_relocs elf_m68k_check_relocs
#define elf_backend_adjust_dynamic_symbol \
elf_m68k_adjust_dynamic_symbol
@ -1685,5 +1562,8 @@ elf_m68k_finish_dynamic_sections (output_bfd, info)
elf_m68k_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
elf_m68k_finish_dynamic_sections
#define elf_backend_want_got_plt 1
#define elf_backend_plt_readonly 1
#define elf_backend_want_plt_sym 0
#include "elf32-target.h"

35
bfd/elf32-m88k.c Normal file
View File

@ -0,0 +1,35 @@
/* Motorola 88k-specific support for 32-bit ELF
Copyright 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libelf.h"
/* This does not include any relocations, but should be good enough
for GDB. */
#define TARGET_BIG_SYM bfd_elf32_m88k_vec
#define TARGET_BIG_NAME "elf32-m88k"
#define ELF_ARCH bfd_arch_m88k
#define ELF_MACHINE_CODE EM_88K
#define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
#define elf_info_to_howto _bfd_elf_no_info_to_howto
#include "elf32-target.h"

14
bfd/elf32-mips.c
View File

@ -1587,9 +1587,9 @@ mips_elf_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
/* Fall back on the generic ELF find_nearest_line routine. */
return bfd_elf32_find_nearest_line (abfd, section, symbols, offset,
filename_ptr, functionname_ptr,
line_ptr);
return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
filename_ptr, functionname_ptr,
line_ptr);
}
/* The MIPS ELF linker needs additional information for each symbol in
@ -2713,9 +2713,9 @@ mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
name = h->root.root.string;
else
{
name = elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
if (name == NULL)
return false;
if (*name == '\0')
@ -2788,7 +2788,7 @@ elf32_mips_get_relocated_section_contents (abfd, link_info, link_order, data,
arelent **parent;
/* for mips */
int gp_found;
bfd_vma gp;
bfd_vma gp = 0x12345678; /* initialize just to shut gcc up */
{
struct bfd_hash_entry *h;

654
bfd/elf32-ppc.c
View File

@ -25,19 +25,39 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "libelf.h"
#include "elf/ppc.h"
static bfd_reloc_status_type ppc_elf_unsupported_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static bfd_reloc_status_type ppc_elf_std_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static bfd_vma ppc_elf_addr16_ha_inner PARAMS ((asection *, bfd_vma, bfd_vma));
static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static bfd_vma ppc_elf_got16_inner PARAMS ((asection *sec));
static bfd_reloc_status_type ppc_elf_got16_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
static reloc_howto_type *ppc_elf_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void powerpc_info_to_howto
static void ppc_elf_info_to_howto
PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst));
static void ppc_elf_howto_init PARAMS ((void));
static boolean ppc_elf_set_private_flags PARAMS ((bfd *, flagword));
static boolean ppc_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
static boolean ppc_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
static boolean ppc_elf_relocate_section PARAMS ((bfd *,
struct bfd_link_info *info,
bfd *,
asection *,
bfd_byte *,
Elf_Internal_Rela *relocs,
Elf_Internal_Sym *local_syms,
asection **));
#define USE_RELA
@ -104,7 +124,10 @@ enum reloc_type
R_PPC_max
};
static reloc_howto_type elf_powerpc_howto_table[] =
static reloc_howto_type *ppc_elf_howto_table[ (int)R_PPC_max ];
static reloc_howto_type ppc_elf_howto_raw[] =
{
/* This reloc does nothing. */
HOWTO (R_PPC_NONE, /* type */
@ -114,7 +137,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_NONE", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -129,7 +152,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_ADDR32", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -145,7 +168,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_ADDR24", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -160,7 +183,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_ADDR16", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -175,7 +198,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_ADDR16_LO", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -190,7 +213,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_ADDR16_HI", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -222,7 +245,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_ADDR14", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -271,7 +294,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_REL24", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -286,7 +309,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_REL14", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -335,7 +358,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
complain_overflow_signed, /* complain_on_overflow */
ppc_elf_got16_reloc, /* special_function */
"R_PPC_GOT16", /* name */
false, /* partial_inplace */
@ -400,7 +423,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_PLT24", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -419,7 +442,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_COPY", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -435,7 +458,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_GLOB_DAT", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -450,7 +473,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_JMP_SLOT", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -467,7 +490,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_RELATIVE", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -499,7 +522,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_UADDR32", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -514,7 +537,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_UADDR16", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -529,7 +552,7 @@ static reloc_howto_type elf_powerpc_howto_table[] =
true, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
ppc_elf_std_reloc, /* special_function */
"R_PPC_REL32", /* name */
false, /* partial_inplace */
0, /* src_mask */
@ -774,6 +797,224 @@ static reloc_howto_type elf_powerpc_howto_table[] =
false), /* pcrel_offset */
};
/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
static void
ppc_elf_howto_init ()
{
unsigned int i, type;
for (i = 0; i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); i++)
{
type = ppc_elf_howto_raw[i].type;
BFD_ASSERT (type < sizeof(ppc_elf_howto_table) / sizeof(ppc_elf_howto_table[0]));
ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
}
}
static reloc_howto_type *
ppc_elf_reloc_type_lookup (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
{
if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */
ppc_elf_howto_init ();
switch ((int)code)
{
case BFD_RELOC_NONE: return ppc_elf_howto_table[ (int) R_PPC_NONE ];
case BFD_RELOC_32: return ppc_elf_howto_table[ (int) R_PPC_ADDR32 ];
case BFD_RELOC_32_PCREL: return ppc_elf_howto_table[ (int) R_PPC_REL32 ];
case BFD_RELOC_CTOR: return ppc_elf_howto_table[ (int) R_PPC_ADDR32 ];
case BFD_RELOC_PPC_B26: return ppc_elf_howto_table[ (int) R_PPC_REL24 ];
case BFD_RELOC_PPC_BA26: return ppc_elf_howto_table[ (int) R_PPC_ADDR24 ];
case BFD_RELOC_PPC_TOC16: return ppc_elf_howto_table[ (int) R_PPC_GOT16 ];
case BFD_RELOC_LO16: return ppc_elf_howto_table[ (int) R_PPC_ADDR16_LO ];
case BFD_RELOC_HI16: return ppc_elf_howto_table[ (int) R_PPC_ADDR16_HI ];
case BFD_RELOC_HI16_S: return ppc_elf_howto_table[ (int) R_PPC_ADDR16_HA ];
}
return (reloc_howto_type *)NULL;
};
/* Set the howto pointer for a PowerPC ELF reloc. */
static void
ppc_elf_info_to_howto (abfd, cache_ptr, dst)
bfd *abfd;
arelent *cache_ptr;
Elf32_Internal_Rela *dst;
{
if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */
ppc_elf_howto_init ();
BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
}
/* Function to set whether a module needs the -mrelocatable bit set. */
static boolean
ppc_elf_set_private_flags (abfd, flags)
bfd *abfd;
flagword flags;
{
BFD_ASSERT (!elf_ppc_flags_init (abfd)
|| elf_elfheader (abfd)->e_flags == flags);
elf_elfheader (abfd)->e_flags = flags;
elf_ppc_flags_init (abfd) = true;
return true;
}
/* Copy backend specific data from one object module to another */
static boolean
ppc_elf_copy_private_bfd_data (ibfd, obfd)
bfd *ibfd;
bfd *obfd;
{
/* This function is selected based on the input vector. We only
want to copy information over if the output BFD also uses Elf
format. */
if (bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return true;
BFD_ASSERT (!elf_ppc_flags_init (obfd)
|| elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
elf_ppc_flags_init (obfd) = true;
return true;
}
/* Merge backend specific data from an object file to the output
object file when linking */
static boolean
ppc_elf_merge_private_bfd_data (ibfd, obfd)
bfd *ibfd;
bfd *obfd;
{
flagword old_flags;
flagword new_flags;
/* Check if we have the same endianess */
if (ibfd->xvec->byteorder_big_p != obfd->xvec->byteorder_big_p)
{
fprintf (stderr,
"%s: compiled for a %s endian system and target is %s endian.\n",
bfd_get_filename (ibfd),
(ibfd->xvec->byteorder_big_p) ? "big" : "little",
(obfd->xvec->byteorder_big_p) ? "big" : "little");
bfd_set_error (bfd_error_wrong_format);
return false;
}
/* This function is selected based on the input vector. We only
want to copy information over if the output BFD also uses Elf
format. */
if (bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return true;
new_flags = elf_elfheader (ibfd)->e_flags;
old_flags = elf_elfheader (obfd)->e_flags;
if (!elf_ppc_flags_init (obfd)) /* First call, no flags set */
{
elf_ppc_flags_init (obfd) = true;
elf_elfheader (obfd)->e_flags = new_flags;
}
else if (new_flags == old_flags) /* Compatible flags are ok */
;
else /* Incompatible flags */
{
/* Warn about -mrelocatable mismatch */
if ((new_flags & EF_PPC_RELOCATABLE) != 0 && (old_flags & EF_PPC_RELOCATABLE) == 0)
{
new_flags &= ~EF_PPC_RELOCATABLE;
fprintf (stderr,
"%s: compiled with -mrelocatable and linked with modules compiled normally\n",
bfd_get_filename (ibfd));
}
else if ((new_flags & EF_PPC_RELOCATABLE) == 0 && (old_flags & EF_PPC_RELOCATABLE) != 0)
{
old_flags &= ~EF_PPC_RELOCATABLE;
fprintf (stderr,
"%s: compiled normally and linked with modules compiled with -mrelocatable\n",
bfd_get_filename (ibfd));
}
/* Warn about eabi vs. V.4 mismatch */
if ((new_flags & EF_PPC_EMB) != 0 && (old_flags & EF_PPC_EMB) == 0)
{
new_flags &= ~EF_PPC_EMB;
fprintf (stderr,
"%s: compiled for the eabi and linked with modules compiled for System V\n",
bfd_get_filename (ibfd));
}
else if ((new_flags & EF_PPC_EMB) == 0 && (old_flags & EF_PPC_EMB) != 0)
{
old_flags &= ~EF_PPC_EMB;
fprintf (stderr,
"%s: compiled for System V and linked with modules compiled for eabi\n",
bfd_get_filename (ibfd));
}
/* Warn about any other mismatches */
if (new_flags != old_flags)
fprintf (stderr,
"%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)\n",
bfd_get_filename (ibfd), (long)new_flags, (long)old_flags);
bfd_set_error (bfd_error_bad_value);
return false;
}
return true;
}
/* ELF relocs are against symbols. If we are producing relocateable
output, and the reloc is against an external symbol, and nothing
has given us any additional addend, the resulting reloc will also
be against the same symbol. In such a case, we don't want to
change anything about the way the reloc is handled, since it will
all be done at final link time. Rather than put special case code
into bfd_perform_relocation, all the reloc types use this howto
function. It just short circuits the reloc if producing
relocateable output against an external symbol. */
/*ARGSUSED*/
static bfd_reloc_status_type
ppc_elf_std_reloc (abfd,
reloc_entry,
symbol,
data,
input_section,
output_bfd,
error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message;
{
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& (! reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
return bfd_reloc_continue;
}
/* Don't pretend we can deal with unsupported relocs. */
/*ARGSUSED*/
@ -788,11 +1029,39 @@ ppc_elf_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
bfd *output_bfd;
char **error_message;
{
abort ();
BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
fprintf (stderr,
"%s: Relocation %s (%d) is not currently supported.\n",
bfd_get_filename (abfd),
reloc_entry->howto->name,
reloc_entry->howto->type);
return bfd_reloc_notsupported;
}
/* Internal function to return the adjustment to the addend for relocations
that return the upper 16 bits after sign extending the lower 16 bits, ie
for use with a ORIS instruction followed by a memory reference using the
bottom 16 bits. */
INLINE
static bfd_vma
ppc_elf_addr16_ha_inner (sec, value, addend)
asection *sec;
bfd_vma value;
bfd_vma addend;
{
bfd_vma relocation = (value
+ sec->output_section->vma
+ sec->output_offset
+ addend);
return (relocation & 0x8000) << 1;
}
/* Handle the ADDR16_HA reloc by adjusting the reloc addend. */
/*ARGSUSED*/
static bfd_reloc_status_type
ppc_elf_addr16_ha_reloc (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
@ -804,33 +1073,38 @@ ppc_elf_addr16_ha_reloc (abfd, reloc_entry, symbol, data, input_section,
bfd *output_bfd;
char **error_message;
{
bfd_vma relocation;
if (output_bfd != (bfd *) NULL)
return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
if (bfd_is_com_section (symbol->section))
relocation = 0;
else
relocation = symbol->value;
relocation += (symbol->section->output_section->vma
+ symbol->section->output_offset
+ reloc_entry->addend);
if ((relocation & 0x8000) != 0)
reloc_entry->addend += 0x10000;
return ppc_elf_std_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
reloc_entry->addend += ppc_elf_addr16_ha_inner (symbol->section,
(bfd_is_com_section (symbol->section)) ? 0 : symbol->value,
reloc_entry->addend);
return bfd_reloc_continue;
}
/* Internal function to return the addjustment to the addend for GOT16
entries */
INLINE
static bfd_vma
ppc_elf_got16_inner (sec)
asection *sec;
{
BFD_ASSERT (bfd_is_und_section (sec)
|| strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
|| strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
return -(sec->output_section->vma + 0x8000);
}
/* Handle the GOT16 reloc. We want to use the offset within the .got
section, not the actual VMA. This is appropriate when generating
an embedded ELF object, for which the .got section acts like the
AIX .toc section. When and if we support PIC code, we will have to
change this, perhaps by switching off on the e_type field. */
/*ARGSUSED*/
static bfd_reloc_status_type
ppc_elf_got16_reloc (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
@ -842,78 +1116,272 @@ ppc_elf_got16_reloc (abfd, reloc_entry, symbol, data, input_section,
bfd *output_bfd;
char **error_message;
{
asection *sec;
if (output_bfd != (bfd *) NULL)
return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
return ppc_elf_std_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
sec = bfd_get_section (*reloc_entry->sym_ptr_ptr);
BFD_ASSERT (bfd_is_und_section (sec)
|| strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
|| strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
reloc_entry->addend -= sec->output_section->vma;
reloc_entry->addend += ppc_elf_got16_inner (bfd_get_section (*reloc_entry->sym_ptr_ptr));
return bfd_reloc_continue;
}
/* Map BFD reloc types to PowerPC ELF reloc types. */
/* The RELOCATE_SECTION function is called by the ELF backend linker
to handle the relocations for a section.
struct powerpc_reloc_map
The relocs are always passed as Rela structures; if the section
actually uses Rel structures, the r_addend field will always be
zero.
This function is responsible for adjust the section contents as
necessary, and (if using Rela relocs and generating a
relocateable output file) adjusting the reloc addend as
necessary.
This function does not have to worry about setting the reloc
address or the reloc symbol index.
LOCAL_SYMS is a pointer to the swapped in local symbols.
LOCAL_SECTIONS is an array giving the section in the input file
corresponding to the st_shndx field of each local symbol.
The global hash table entry for the global symbols can be found
via elf_sym_hashes (input_bfd).
When generating relocateable output, this function must handle
STB_LOCAL/STT_SECTION symbols specially. The output symbol is
going to be the section symbol corresponding to the output
section, which means that the addend must be adjusted
accordingly. */
static boolean
ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
contents, relocs, local_syms, local_sections)
bfd *output_bfd;
struct bfd_link_info *info;
bfd *input_bfd;
asection *input_section;
bfd_byte *contents;
Elf_Internal_Rela *relocs;
Elf_Internal_Sym *local_syms;
asection **local_sections;
{
unsigned char bfd_reloc_val;
unsigned char elf_reloc_val;
};
Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
Elf_Internal_Rela *rel = relocs;
Elf_Internal_Rela *relend = relocs + input_section->reloc_count;
boolean ret = true;
static const struct powerpc_reloc_map powerpc_reloc_map[] =
{
{ BFD_RELOC_NONE, R_PPC_NONE, },
{ BFD_RELOC_32, R_PPC_ADDR32 },
{ BFD_RELOC_32_PCREL, R_PPC_REL32 },
{ BFD_RELOC_CTOR, R_PPC_ADDR32 },
{ BFD_RELOC_PPC_B26, R_PPC_REL24 },
{ BFD_RELOC_PPC_BA26, R_PPC_ADDR24 },
{ BFD_RELOC_PPC_TOC16, R_PPC_GOT16 },
{ BFD_RELOC_LO16, R_PPC_ADDR16_LO },
{ BFD_RELOC_HI16, R_PPC_ADDR16_HI },
{ BFD_RELOC_HI16_S, R_PPC_ADDR16_HA }
};
#ifdef DEBUG
fprintf (stderr, "ppc_elf_relocate_section called for %s section %s, %ld relocations%s\n",
bfd_get_filename (input_bfd),
bfd_section_name(input_bfd, input_section),
(long)input_section->reloc_count,
(info->relocateable) ? " (relocatable)" : "");
#endif
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
{
int i;
if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */
ppc_elf_howto_init ();
for (i = 0;
i < sizeof (powerpc_reloc_map) / sizeof (struct powerpc_reloc_map);
i++)
for (; rel < relend; rel++)
{
if (powerpc_reloc_map[i].bfd_reloc_val == code)
return &elf_powerpc_howto_table[powerpc_reloc_map[i].elf_reloc_val];
enum reloc_type r_type = (enum reloc_type)ELF32_R_TYPE (rel->r_info);
bfd_vma offset = rel->r_offset;
bfd_vma addend = rel->r_addend;
bfd_reloc_status_type r = bfd_reloc_other;
Elf_Internal_Sym *sym = (Elf_Internal_Sym *)0;
asection *sec = (asection *)0;
struct elf_link_hash_entry *h = (struct elf_link_hash_entry *)0;
reloc_howto_type *howto;
unsigned long r_symndx;
bfd_vma relocation;
/* Unknown relocation handling */
if ((unsigned)r_type >= (unsigned)R_PPC_max || !ppc_elf_howto_table[(int)r_type])
{
fprintf (stderr,
"%s: Unknown relocation type %d\n",
bfd_get_filename (input_bfd),
(int)r_type);
bfd_set_error (bfd_error_bad_value);
ret = false;
continue;
}
howto = ppc_elf_howto_table[(int)r_type];
r_symndx = ELF32_R_SYM (rel->r_info);
if (info->relocateable)
{
/* This is a relocateable link. We don't have to change
anything, unless the reloc is against a section symbol,
in which case we have to adjust according to where the
section symbol winds up in the output section. */
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
if ((unsigned)ELF_ST_TYPE (sym->st_info) == STT_SECTION)
{
sec = local_sections[r_symndx];
addend = rel->r_addend += sec->output_offset + sym->st_value;
}
}
#ifdef DEBUG
fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n",
howto->name,
(int)r_type,
r_symndx,
(long)offset,
(long)addend);
#endif
continue;
}
/* This is a final link. */
/* Complain about known relocation that are not yet supported */
if (howto->special_function == ppc_elf_unsupported_reloc)
{
fprintf (stderr,
"%s: Relocation %s (%d) is not currently supported.\n",
bfd_get_filename (input_bfd),
howto->name,
(int)r_type);
bfd_set_error (bfd_error_bad_value);
ret = false;
continue;
}
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
relocation = (sec->output_section->vma
+ sec->output_offset
+ sym->st_value);
}
else
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
if (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
sec = h->root.u.def.section;
relocation = (h->root.u.def.value
+ sec->output_section->vma
+ sec->output_offset);
}
else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
else if (info->shared)
relocation = 0;
else
{
(*info->callbacks->undefined_symbol)(info,
h->root.root.string,
input_bfd,
input_section,
rel->r_offset);
ret = false;
continue;
}
}
switch ((int)r_type)
{
default:
break;
case (int)R_PPC_GOT16: /* GOT16 relocations */
case (int)R_PPC_GOT16_LO:
case (int)R_PPC_GOT16_HI:
BFD_ASSERT (sec != (asection *)0);
addend += ppc_elf_got16_inner (sec);
break;
case (int)R_PPC_ADDR16_HA: /* arithmetic adjust relocations */
BFD_ASSERT (sec != (asection *)0);
addend += ppc_elf_addr16_ha_inner (sec, relocation, addend);
break;
}
#ifdef DEBUG
fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n",
howto->name,
(int)r_type,
r_symndx,
(long)offset,
(long)addend);
#endif
r = _bfd_final_link_relocate (howto,
input_bfd,
input_section,
contents,
offset,
relocation,
addend);
if (r != bfd_reloc_ok)
{
ret = false;
switch (r)
{
default:
break;
case bfd_reloc_overflow:
{
const char *name;
if (h != NULL)
name = h->root.root.string;
else
{
name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
if (name == NULL)
break;
if (*name == '\0')
name = bfd_section_name (input_bfd, sec);
}
(*info->callbacks->reloc_overflow)(info,
name,
howto->name,
(bfd_vma) 0,
input_bfd,
input_section,
offset);
}
break;
}
}
}
return NULL;
}
/* Set the howto pointer for a PowerPC ELF reloc. */
static void
powerpc_info_to_howto (abfd, cache_ptr, dst)
bfd *abfd;
arelent *cache_ptr;
Elf32_Internal_Rela *dst;
{
BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
cache_ptr->howto = &elf_powerpc_howto_table[ELF32_R_TYPE (dst->r_info)];
#ifdef DEBUG
fprintf (stderr, "\n");
#endif
return ret;
}
#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
#define TARGET_LITTLE_NAME "elf32-powerpcle"
#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
#define TARGET_BIG_NAME "elf32-powerpc"
#define ELF_ARCH bfd_arch_powerpc
#define ELF_MACHINE_CODE EM_PPC
#define ELF_MAXPAGESIZE 0x10000
#define elf_info_to_howto powerpc_info_to_howto
#define elf_info_to_howto ppc_elf_info_to_howto
#ifdef EM_CYGNUS_POWERPC
#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
@ -923,4 +1391,10 @@ powerpc_info_to_howto (abfd, cache_ptr, dst)
#define ELF_MACHINE_ALT2 EM_PPC_OLD
#endif
#define bfd_elf32_bfd_copy_private_bfd_data ppc_elf_copy_private_bfd_data
#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
#define elf_backend_relocate_section ppc_elf_relocate_section
#include "elf32-target.h"

141
bfd/elf32-sparc.c
View File

@ -27,10 +27,6 @@ static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
static void elf_info_to_howto
PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
static boolean elf32_sparc_create_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf32_sparc_create_got_section
PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf32_sparc_check_relocs
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
@ -199,124 +195,6 @@ elf_info_to_howto (abfd, cache_ptr, dst)
/* nop. */
#define PLT_ENTRY_WORD2 SPARC_NOP
/* Create dynamic sections when linking against a dynamic object. */
static boolean
elf32_sparc_create_dynamic_sections (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
flagword flags;
register asection *s;
struct elf_link_hash_entry *h;
/* We need to create .plt, .rela.plt, .got, .dynbss, and .rela.bss
sections. */
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
s = bfd_make_section (abfd, ".plt");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags | SEC_CODE)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
/* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
.plt section. */
h = NULL;
if (! (_bfd_generic_link_add_one_symbol
(info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0,
(const char *) NULL, false, get_elf_backend_data (abfd)->collect,
(struct bfd_link_hash_entry **) &h)))
return false;
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
h->type = STT_OBJECT;
if (info->shared
&& ! bfd_elf32_link_record_dynamic_symbol (info, h))
return false;
s = bfd_make_section (abfd, ".rela.plt");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
if (! elf32_sparc_create_got_section (abfd, info))
return false;
/* The .dynbss section is a place to put symbols which are defined
by dynamic objects, are referenced by regular objects, and are
not functions. We must allocate space for them in the process
image and use a R_SPARC_COPY reloc to tell the dynamic linker to
initialize them at run time. The linker script puts the .dynbss
section into the .bss section of the final image. */
s = bfd_make_section (abfd, ".dynbss");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
return false;
/* The .rela.bss section holds copy relocs. */
if (! info->shared)
{
s = bfd_make_section (abfd, ".rela.bss");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
}
return true;
}
/* Create the .got section to hold the global offset table. */
static boolean
elf32_sparc_create_got_section (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
register asection *s;
struct elf_link_hash_entry *h;
/* This function may be called more than once. */
if (bfd_get_section_by_name (abfd, ".got") != NULL)
return true;
s = bfd_make_section (abfd, ".got");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s,
(SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
| SEC_IN_MEMORY))
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
/* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
section. We don't do this in the linker script because we don't
want to define the symbol if we are not creating a global offset
table. FIXME: The Solaris linker puts _GLOBAL_OFFSET_TABLE_ at
the start of the .got section, but when using the small PIC model
the .got is accessed using a signed 13 bit offset. Shouldn't
_GLOBAL_OFFSET_TABLE_ be located at .got + 4096? */
h = NULL;
if (! (_bfd_generic_link_add_one_symbol
(info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0,
(const char *) NULL, false, get_elf_backend_data (abfd)->collect,
(struct bfd_link_hash_entry **) &h)))
return false;
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
h->type = STT_OBJECT;
if (info->shared
&& ! bfd_elf32_link_record_dynamic_symbol (info, h))
return false;
/* The first global offset table entry is reserved. */
s->_raw_size += 4;
return true;
}
/* Look through the relocs for a section during the first phase, and
allocate space in the global offset table or procedure linkage
table. */
@ -373,7 +251,7 @@ elf32_sparc_check_relocs (abfd, info, sec, relocs)
{
/* Create the .got section. */
elf_hash_table (info)->dynobj = dynobj = abfd;
if (! elf32_sparc_create_got_section (dynobj, info))
if (! _bfd_elf_create_got_section (dynobj, info))
return false;
}
@ -515,7 +393,7 @@ elf32_sparc_check_relocs (abfd, info, sec, relocs)
{
const char *name;
name = (elf_string_from_elf_section
name = (bfd_elf_string_from_elf_section
(abfd,
elf_elfheader (abfd)->e_shstrndx,
elf_section_data (sec)->rel_hdr.sh_name));
@ -1211,7 +1089,7 @@ elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section,
{
const char *name;
name = (elf_string_from_elf_section
name = (bfd_elf_string_from_elf_section
(input_bfd,
elf_elfheader (input_bfd)->e_shstrndx,
elf_section_data (input_section)->rel_hdr.sh_name));
@ -1308,9 +1186,9 @@ elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section,
name = h->root.root.string;
else
{
name = elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
if (name == NULL)
return false;
if (*name == '\0')
@ -1568,7 +1446,7 @@ elf32_sparc_finish_dynamic_sections (output_bfd, info)
sym.st_shndx = indx;
bfd_elf32_swap_symbol_out (output_bfd, &sym,
((Elf32_External_Sym *) sdynsym->contents
(char*) ((Elf32_External_Sym *) sdynsym->contents
+ elf_section_data (s)->dynindx));
}
@ -1587,7 +1465,7 @@ elf32_sparc_finish_dynamic_sections (output_bfd, info)
#define ELF_MACHINE_CODE EM_SPARC
#define ELF_MAXPAGESIZE 0x10000
#define elf_backend_create_dynamic_sections \
elf32_sparc_create_dynamic_sections
_bfd_elf_create_dynamic_sections
#define elf_backend_check_relocs elf32_sparc_check_relocs
#define elf_backend_adjust_dynamic_symbol \
elf32_sparc_adjust_dynamic_symbol
@ -1598,5 +1476,8 @@ elf32_sparc_finish_dynamic_sections (output_bfd, info)
elf32_sparc_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
elf32_sparc_finish_dynamic_sections
#define elf_backend_want_got_plt 0
#define elf_backend_plt_readonly 1
#define elf_backend_want_plt_sym 1
#include "elf32-target.h"

5814
bfd/elfcode.h
View File

File diff suppressed because it is too large Load Diff

466
bfd/elfcore.h Normal file
View File

@ -0,0 +1,466 @@
/* Core file support */
#ifdef HAVE_PROCFS /* Some core file support requires host /proc files */
#include <sys/procfs.h>
#else
#define bfd_prstatus(abfd, descdata, descsz, filepos) true
#define bfd_fpregset(abfd, descdata, descsz, filepos) true
#define bfd_prpsinfo(abfd, descdata, descsz, filepos) true
#endif
#ifdef HAVE_PROCFS
static boolean
bfd_prstatus (abfd, descdata, descsz, filepos)
bfd *abfd;
char *descdata;
int descsz;
long filepos;
{
asection *newsect;
prstatus_t *status = (prstatus_t *) 0;
if (descsz == sizeof (prstatus_t))
{
newsect = bfd_make_section (abfd, ".reg");
if (newsect == NULL)
return false;
newsect->_raw_size = sizeof (status->pr_reg);
newsect->filepos = filepos + (long) &status->pr_reg;
newsect->flags = SEC_HAS_CONTENTS;
newsect->alignment_power = 2;
if ((core_prstatus (abfd) = bfd_alloc (abfd, descsz)) != NULL)
{
memcpy (core_prstatus (abfd), descdata, descsz);
}
}
return true;
}
/* Stash a copy of the prpsinfo structure away for future use. */
static boolean
bfd_prpsinfo (abfd, descdata, descsz, filepos)
bfd *abfd;
char *descdata;
int descsz;
long filepos;
{
if (descsz == sizeof (prpsinfo_t))
{
if ((core_prpsinfo (abfd) = bfd_alloc (abfd, descsz)) == NULL)
{
bfd_set_error (bfd_error_no_memory);
return false;
}
memcpy (core_prpsinfo (abfd), descdata, descsz);
}
return true;
}
static boolean
bfd_fpregset (abfd, descdata, descsz, filepos)
bfd *abfd;
char *descdata;
int descsz;
long filepos;
{
asection *newsect;
newsect = bfd_make_section (abfd, ".reg2");
if (newsect == NULL)
return false;
newsect->_raw_size = descsz;
newsect->filepos = filepos;
newsect->flags = SEC_HAS_CONTENTS;
newsect->alignment_power = 2;
return true;
}
#endif /* HAVE_PROCFS */
/* Return a pointer to the args (including the command name) that were
seen by the program that generated the core dump. Note that for
some reason, a spurious space is tacked onto the end of the args
in some (at least one anyway) implementations, so strip it off if
it exists. */
char *
elf_core_file_failing_command (abfd)
bfd *abfd;
{
#ifdef HAVE_PROCFS
if (core_prpsinfo (abfd))
{
prpsinfo_t *p = core_prpsinfo (abfd);
char *scan = p->pr_psargs;
while (*scan++)
{;
}
scan -= 2;
if ((scan > p->pr_psargs) && (*scan == ' '))
{
*scan = '\000';
}
return p->pr_psargs;
}
#endif
return NULL;
}
/* Return the number of the signal that caused the core dump. Presumably,
since we have a core file, we got a signal of some kind, so don't bother
checking the other process status fields, just return the signal number.
*/
int
elf_core_file_failing_signal (abfd)
bfd *abfd;
{
#ifdef HAVE_PROCFS
if (core_prstatus (abfd))
{
return ((prstatus_t *) (core_prstatus (abfd)))->pr_cursig;
}
#endif
return -1;
}
/* Check to see if the core file could reasonably be expected to have
come for the current executable file. Note that by default we return
true unless we find something that indicates that there might be a
problem.
*/
boolean
elf_core_file_matches_executable_p (core_bfd, exec_bfd)
bfd *core_bfd;
bfd *exec_bfd;
{
#ifdef HAVE_PROCFS
char *corename;
char *execname;
#endif
/* First, xvecs must match since both are ELF files for the same target. */
if (core_bfd->xvec != exec_bfd->xvec)
{
bfd_set_error (bfd_error_system_call);
return false;
}
#ifdef HAVE_PROCFS
/* If no prpsinfo, just return true. Otherwise, grab the last component
of the exec'd pathname from the prpsinfo. */
if (core_prpsinfo (core_bfd))
{
corename = (((prpsinfo_t *) core_prpsinfo (core_bfd))->pr_fname);
}
else
{
return true;
}
/* Find the last component of the executable pathname. */
if ((execname = strrchr (exec_bfd->filename, '/')) != NULL)
{
execname++;
}
else
{
execname = (char *) exec_bfd->filename;
}
/* See if they match */
return strcmp (execname, corename) ? false : true;
#else
return true;
#endif /* HAVE_PROCFS */
}
/* ELF core files contain a segment of type PT_NOTE, that holds much of
the information that would normally be available from the /proc interface
for the process, at the time the process dumped core. Currently this
includes copies of the prstatus, prpsinfo, and fpregset structures.
Since these structures are potentially machine dependent in size and
ordering, bfd provides two levels of support for them. The first level,
available on all machines since it does not require that the host
have /proc support or the relevant include files, is to create a bfd
section for each of the prstatus, prpsinfo, and fpregset structures,
without any interpretation of their contents. With just this support,
the bfd client will have to interpret the structures itself. Even with
/proc support, it might want these full structures for it's own reasons.
In the second level of support, where HAVE_PROCFS is defined, bfd will
pick apart the structures to gather some additional information that
clients may want, such as the general register set, the name of the
exec'ed file and its arguments, the signal (if any) that caused the
core dump, etc.
*/
static boolean
elf_corefile_note (abfd, hdr)
bfd *abfd;
Elf_Internal_Phdr *hdr;
{
Elf_External_Note *x_note_p; /* Elf note, external form */
Elf_Internal_Note i_note; /* Elf note, internal form */
char *buf = NULL; /* Entire note segment contents */
char *namedata; /* Name portion of the note */
char *descdata; /* Descriptor portion of the note */
char *sectname; /* Name to use for new section */
long filepos; /* File offset to descriptor data */
asection *newsect;
if (hdr->p_filesz > 0
&& (buf = (char *) malloc (hdr->p_filesz)) != NULL
&& bfd_seek (abfd, hdr->p_offset, SEEK_SET) != -1
&& bfd_read ((PTR) buf, hdr->p_filesz, 1, abfd) == hdr->p_filesz)
{
x_note_p = (Elf_External_Note *) buf;
while ((char *) x_note_p < (buf + hdr->p_filesz))
{
i_note.namesz = bfd_h_get_32 (abfd, (bfd_byte *) x_note_p->namesz);
i_note.descsz = bfd_h_get_32 (abfd, (bfd_byte *) x_note_p->descsz);
i_note.type = bfd_h_get_32 (abfd, (bfd_byte *) x_note_p->type);
namedata = x_note_p->name;
descdata = namedata + BFD_ALIGN (i_note.namesz, 4);
filepos = hdr->p_offset + (descdata - buf);
switch (i_note.type)
{
case NT_PRSTATUS:
/* process descdata as prstatus info */
if (! bfd_prstatus (abfd, descdata, i_note.descsz, filepos))
return false;
sectname = ".prstatus";
break;
case NT_FPREGSET:
/* process descdata as fpregset info */
if (! bfd_fpregset (abfd, descdata, i_note.descsz, filepos))
return false;
sectname = ".fpregset";
break;
case NT_PRPSINFO:
/* process descdata as prpsinfo */
if (! bfd_prpsinfo (abfd, descdata, i_note.descsz, filepos))
return false;
sectname = ".prpsinfo";
break;
default:
/* Unknown descriptor, just ignore it. */
sectname = NULL;
break;
}
if (sectname != NULL)
{
newsect = bfd_make_section (abfd, sectname);
if (newsect == NULL)
return false;
newsect->_raw_size = i_note.descsz;
newsect->filepos = filepos;
newsect->flags = SEC_ALLOC | SEC_HAS_CONTENTS;
newsect->alignment_power = 2;
}
x_note_p = (Elf_External_Note *)
(descdata + BFD_ALIGN (i_note.descsz, 4));
}
}
if (buf != NULL)
{
free (buf);
}
else if (hdr->p_filesz > 0)
{
bfd_set_error (bfd_error_no_memory);
return false;
}
return true;
}
/* Core files are simply standard ELF formatted files that partition
the file using the execution view of the file (program header table)
rather than the linking view. In fact, there is no section header
table in a core file.
The process status information (including the contents of the general
register set) and the floating point register set are stored in a
segment of type PT_NOTE. We handcraft a couple of extra bfd sections
that allow standard bfd access to the general registers (.reg) and the
floating point registers (.reg2).
*/
const bfd_target *
elf_core_file_p (abfd)
bfd *abfd;
{
Elf_External_Ehdr x_ehdr; /* Elf file header, external form */
Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
Elf_External_Phdr x_phdr; /* Program header table entry, external form */
Elf_Internal_Phdr *i_phdrp; /* Program header table, internal form */
unsigned int phindex;
struct elf_backend_data *ebd;
/* Read in the ELF header in external format. */
if (bfd_read ((PTR) & x_ehdr, sizeof (x_ehdr), 1, abfd) != sizeof (x_ehdr))
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* Now check to see if we have a valid ELF file, and one that BFD can
make use of. The magic number must match, the address size ('class')
and byte-swapping must match our XVEC entry, and it must have a
program header table (FIXME: See comments re segments at top of this
file). */
if (elf_file_p (&x_ehdr) == false)
{
wrong:
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* FIXME, Check EI_VERSION here ! */
{
#if ARCH_SIZE == 32
int desired_address_size = ELFCLASS32;
#endif
#if ARCH_SIZE == 64
int desired_address_size = ELFCLASS64;
#endif
if (x_ehdr.e_ident[EI_CLASS] != desired_address_size)
goto wrong;
}
/* Switch xvec to match the specified byte order. */
switch (x_ehdr.e_ident[EI_DATA])
{
case ELFDATA2MSB: /* Big-endian */
if (abfd->xvec->byteorder_big_p == false)
goto wrong;
break;
case ELFDATA2LSB: /* Little-endian */
if (abfd->xvec->byteorder_big_p == true)
goto wrong;
break;
case ELFDATANONE: /* No data encoding specified */
default: /* Unknown data encoding specified */
goto wrong;
}
/* Allocate an instance of the elf_obj_tdata structure and hook it up to
the tdata pointer in the bfd. */
elf_tdata (abfd) =
(struct elf_obj_tdata *) bfd_zalloc (abfd, sizeof (struct elf_obj_tdata));
if (elf_tdata (abfd) == NULL)
{
bfd_set_error (bfd_error_no_memory);
return NULL;
}
/* FIXME, `wrong' returns from this point onward, leak memory. */
/* Now that we know the byte order, swap in the rest of the header */
i_ehdrp = elf_elfheader (abfd);
elf_swap_ehdr_in (abfd, &x_ehdr, i_ehdrp);
#if DEBUG & 1
elf_debug_file (i_ehdrp);
#endif
ebd = get_elf_backend_data (abfd);
/* Check that the ELF e_machine field matches what this particular
BFD format expects. */
if (ebd->elf_machine_code != i_ehdrp->e_machine
&& (ebd->elf_machine_alt1 == 0 || i_ehdrp->e_machine != ebd->elf_machine_alt1)
&& (ebd->elf_machine_alt2 == 0 || i_ehdrp->e_machine != ebd->elf_machine_alt2))
{
const bfd_target * const *target_ptr;
if (ebd->elf_machine_code != EM_NONE)
goto wrong;
/* This is the generic ELF target. Let it match any ELF target
for which we do not have a specific backend. */
for (target_ptr = bfd_target_vector; *target_ptr != NULL; target_ptr++)
{
struct elf_backend_data *back;
if ((*target_ptr)->flavour != bfd_target_elf_flavour)
continue;
back = (struct elf_backend_data *) (*target_ptr)->backend_data;
if (back->elf_machine_code == i_ehdrp->e_machine)
{
/* target_ptr is an ELF backend which matches this
object file, so reject the generic ELF target. */
goto wrong;
}
}
}
/* If there is no program header, or the type is not a core file, then
we are hosed. */
if (i_ehdrp->e_phoff == 0 || i_ehdrp->e_type != ET_CORE)
goto wrong;
/* Allocate space for a copy of the program header table in
internal form, seek to the program header table in the file,
read it in, and convert it to internal form. As a simple sanity
check, verify that the what BFD thinks is the size of each program
header table entry actually matches the size recorded in the file. */
if (i_ehdrp->e_phentsize != sizeof (x_phdr))
goto wrong;
i_phdrp = (Elf_Internal_Phdr *)
bfd_alloc (abfd, sizeof (*i_phdrp) * i_ehdrp->e_phnum);
if (!i_phdrp)
{
bfd_set_error (bfd_error_no_memory);
return NULL;
}
if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) == -1)
return NULL;
for (phindex = 0; phindex < i_ehdrp->e_phnum; phindex++)
{
if (bfd_read ((PTR) & x_phdr, sizeof (x_phdr), 1, abfd)
!= sizeof (x_phdr))
return NULL;
elf_swap_phdr_in (abfd, &x_phdr, i_phdrp + phindex);
}
/* Once all of the program headers have been read and converted, we
can start processing them. */
for (phindex = 0; phindex < i_ehdrp->e_phnum; phindex++)
{
bfd_section_from_phdr (abfd, i_phdrp + phindex, phindex);
if ((i_phdrp + phindex)->p_type == PT_NOTE)
{
if (! elf_corefile_note (abfd, i_phdrp + phindex))
return NULL;
}
}
/* Remember the entry point specified in the ELF file header. */
bfd_get_start_address (abfd) = i_ehdrp->e_entry;
return abfd->xvec;
}

204
bfd/elflink.c Normal file
View File

@ -0,0 +1,204 @@
/* ELF linking support for BFD.
Copyright 1993, 1995 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"
#define ARCH_SIZE 0
#include "libelf.h"
boolean
_bfd_elf_create_got_section (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
flagword flags;
register asection *s;
struct elf_link_hash_entry *h;
struct elf_backend_data *bed = get_elf_backend_data (abfd);
/* This function may be called more than once. */
if (bfd_get_section_by_name (abfd, ".got") != NULL)
return true;
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
s = bfd_make_section (abfd, ".got");
if (s == NULL
|| !bfd_set_section_flags (abfd, s, flags)
|| !bfd_set_section_alignment (abfd, s, 2))
return false;
if (bed->want_got_plt)
{
s = bfd_make_section (abfd, ".got.plt");
if (s == NULL
|| !bfd_set_section_flags (abfd, s, flags)
|| !bfd_set_section_alignment (abfd, s, 2))
return false;
}
/* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
(or .got.plt) section. We don't do this in the linker script
because we don't want to define the symbol if we are not creating
a global offset table. */
h = NULL;
if (!(_bfd_generic_link_add_one_symbol
(info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0,
(const char *) NULL, false, get_elf_backend_data (abfd)->collect,
(struct bfd_link_hash_entry **) &h)))
return false;
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
h->type = STT_OBJECT;
if (info->shared
&& ! _bfd_elf_link_record_dynamic_symbol (info, h))
return false;
/* The first three global offset table entries are reserved. */
s->_raw_size += 3 * 4;
return true;
}
/* Create dynamic sections when linking against a dynamic object. */
boolean
_bfd_elf_create_dynamic_sections (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
flagword flags;
register asection *s;
struct elf_backend_data *bed = get_elf_backend_data (abfd);
/* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
.rel[a].bss sections. */
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
s = bfd_make_section (abfd, ".plt");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s,
(flags | SEC_CODE
| (bed->plt_readonly ? SEC_READONLY : 0)))
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
if (bed->want_plt_sym)
{
/* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
.plt section. */
struct elf_link_hash_entry *h = NULL;
if (! (_bfd_generic_link_add_one_symbol
(info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
(bfd_vma) 0, (const char *) NULL, false,
get_elf_backend_data (abfd)->collect,
(struct bfd_link_hash_entry **) &h)))
return false;
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
h->type = STT_OBJECT;
if (info->shared
&& ! _bfd_elf_link_record_dynamic_symbol (info, h))
return false;
}
s = bfd_make_section (abfd, bed->use_rela_p ? ".rela.plt" : ".rel.plt");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
if (! _bfd_elf_create_got_section (abfd, info))
return false;
/* The .dynbss section is a place to put symbols which are defined
by dynamic objects, are referenced by regular objects, and are
not functions. We must allocate space for them in the process
image and use a R_*_COPY reloc to tell the dynamic linker to
initialize them at run time. The linker script puts the .dynbss
section into the .bss section of the final image. */
s = bfd_make_section (abfd, ".dynbss");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
return false;
/* The .rel[a].bss section holds copy relocs. This section is not
normally needed. We need to create it here, though, so that the
linker will map it to an output section. We can't just create it
only if we need it, because we will not know whether we need it
until we have seen all the input files, and the first time the
main linker code calls BFD after examining all the input files
(size_dynamic_sections) the input sections have already been
mapped to the output sections. If the section turns out not to
be needed, we can discard it later. We will never need this
section when generating a shared object, since they do not use
copy relocs. */
if (! info->shared)
{
s = bfd_make_section (abfd, bed->use_rela_p ? ".rela.bss" : ".rel.bss");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
}
return true;
}
/* Record a new dynamic symbol. We record the dynamic symbols as we
read the input files, since we need to have a list of all of them
before we can determine the final sizes of the output sections.
Note that we may actually call this function even though we are not
going to output any dynamic symbols; in some cases we know that a
symbol should be in the dynamic symbol table, but only if there is
one. */
boolean
_bfd_elf_link_record_dynamic_symbol (info, h)
struct bfd_link_info *info;
struct elf_link_hash_entry *h;
{
if (h->dynindx == -1)
{
struct bfd_strtab_hash *dynstr;
h->dynindx = elf_hash_table (info)->dynsymcount;
++elf_hash_table (info)->dynsymcount;
dynstr = elf_hash_table (info)->dynstr;
if (dynstr == NULL)
{
/* Create a strtab to hold the dynamic symbol names. */
elf_hash_table (info)->dynstr = dynstr = _bfd_elf_stringtab_init ();
if (dynstr == NULL)
return false;
}
h->dynstr_index = ((unsigned long)
_bfd_stringtab_add (dynstr, h->root.root.string,
true, false));
if (h->dynstr_index == (unsigned long) -1)
return false;
}
return true;
}

3018
bfd/elflink.h Normal file
View File

File diff suppressed because it is too large Load Diff

41
bfd/elfxx-target.h
View File

@ -31,6 +31,39 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents
#endif
#define bfd_elfNN_canonicalize_dynamic_symtab _bfd_elf_canonicalize_dynamic_symtab
#define bfd_elfNN_canonicalize_reloc _bfd_elf_canonicalize_reloc
#ifndef bfd_elfNN_find_nearest_line
#define bfd_elfNN_find_nearest_line _bfd_elf_find_nearest_line
#endif
#define bfd_elfNN_get_dynamic_symtab_upper_bound _bfd_elf_get_dynamic_symtab_upper_bound
#define bfd_elfNN_get_lineno _bfd_elf_get_lineno
#define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
#define bfd_elfNN_get_symbol_info _bfd_elf_get_symbol_info
#define bfd_elfNN_get_symtab _bfd_elf_get_symtab
#define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
#if 0 /* done in libelf.h */
#define bfd_elfNN_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol
#endif
#define bfd_elfNN_make_empty_symbol _bfd_elf_make_empty_symbol
#define bfd_elfNN_new_section_hook _bfd_elf_new_section_hook
#define bfd_elfNN_set_arch_mach _bfd_elf_set_arch_mach
#ifndef bfd_elfNN_set_section_contents
#define bfd_elfNN_set_section_contents _bfd_elf_set_section_contents
#endif
#define bfd_elfNN_sizeof_headers _bfd_elf_sizeof_headers
#define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
#ifndef elf_backend_want_got_plt
#define elf_backend_want_got_plt 0
#endif
#ifndef elf_backend_plt_readonly
#define elf_backend_plt_readonly 0
#endif
#ifndef elf_backend_want_plt_sym
#define elf_backend_want_plt_sym 0
#endif
#define bfd_elfNN_bfd_debug_info_start bfd_void
#define bfd_elfNN_bfd_debug_info_end bfd_void
#define bfd_elfNN_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
@ -179,6 +212,8 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define ELF_MACHINE_ALT2 0
#endif
extern const struct elf_size_info _bfd_elfNN_size_info;
static CONST struct elf_backend_data elfNN_bed =
{
#ifdef USE_REL
@ -213,7 +248,11 @@ static CONST struct elf_backend_data elfNN_bed =
elf_backend_final_write_processing,
elf_backend_ecoff_debug_swap,
ELF_MACHINE_ALT1,
ELF_MACHINE_ALT2
ELF_MACHINE_ALT2,
&_bfd_elfNN_size_info,
elf_backend_want_got_plt,
elf_backend_plt_readonly,
elf_backend_want_plt_sym,
};
#ifdef TARGET_BIG_SYM

144
bfd/libelf.h
View File

@ -170,6 +170,26 @@ struct elf_link_hash_table
/* Constant information held for an ELF backend. */
struct elf_size_info {
unsigned char sizeof_ehdr, sizeof_phdr, sizeof_shdr;
unsigned char sizeof_rel, sizeof_rela, sizeof_sym, sizeof_dyn, sizeof_note;
unsigned char arch_size, file_align;
unsigned char elfclass, ev_current;
int (*write_out_phdrs) PARAMS ((bfd *, Elf_Internal_Phdr *, int));
boolean (*write_shdrs_and_ehdr) PARAMS ((bfd *));
void (*write_relocs) PARAMS ((bfd *, asection *, PTR));
void (*swap_symbol_out) PARAMS ((bfd *, Elf_Internal_Sym *, char *));
boolean (*slurp_reloc_table) PARAMS ((bfd *, asection *, asymbol **));
long (*slurp_symbol_table) PARAMS ((bfd *, asymbol **, boolean));
};
#define elf_symbol_from(ABFD,S) \
(((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
&& (S)->the_bfd->tdata.elf_obj_data != 0) \
? (elf_symbol_type *) (S) \
: 0)
struct elf_backend_data
{
/* Whether the backend uses REL or RELA relocations. FIXME: some
@ -399,6 +419,12 @@ struct elf_backend_data
/* Alternate EM_xxxx machine codes for this backend. */
int elf_machine_alt1;
int elf_machine_alt2;
const struct elf_size_info *s;
unsigned char want_got_plt : 1;
unsigned char plt_readonly : 1;
unsigned char want_plt_sym : 1;
};
/* Information stored for each BFD section in an ELF file. This
@ -516,11 +542,13 @@ struct elf_obj_tdata
#define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab)
#define elf_ppc_flags_init(bfd) (elf_tdata(bfd) -> ppc_flags_init)
extern char * elf_string_from_elf_section PARAMS ((bfd *, unsigned, unsigned));
extern char * elf_get_str_section PARAMS ((bfd *, unsigned));
extern char * bfd_elf_string_from_elf_section PARAMS ((bfd *, unsigned, unsigned));
extern char * bfd_elf_get_str_section PARAMS ((bfd *, unsigned));
extern void bfd_elf_print_symbol PARAMS ((bfd *, PTR, asymbol *,
bfd_print_symbol_type));
#define elf_string_from_elf_strtab(abfd,strindex) \
bfd_elf_string_from_elf_section(abfd,elf_elfheader(abfd)->e_shstrndx,strindex)
#define bfd_elf32_print_symbol bfd_elf_print_symbol
#define bfd_elf64_print_symbol bfd_elf_print_symbol
@ -551,8 +579,54 @@ extern boolean _bfd_elf_link_hash_table_init
struct bfd_hash_table *,
const char *)));
extern boolean bfd_elf32_write_object_contents PARAMS ((bfd *));
extern boolean bfd_elf64_write_object_contents PARAMS ((bfd *));
extern boolean _bfd_elf_write_object_contents PARAMS ((bfd *));
extern boolean _bfd_elf_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
file_ptr,
bfd_size_type));
extern long _bfd_elf_get_symtab_upper_bound PARAMS ((bfd *));
extern long _bfd_elf_get_symtab PARAMS ((bfd *, asymbol **));
extern long _bfd_elf_get_dynamic_symtab_upper_bound PARAMS ((bfd *));
extern long _bfd_elf_canonicalize_dynamic_symtab PARAMS ((bfd *, asymbol **));
extern long _bfd_elf_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
extern long _bfd_elf_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
arelent **, asymbol **));
extern asymbol *_bfd_elf_make_empty_symbol PARAMS ((bfd *));
extern void _bfd_elf_get_symbol_info PARAMS ((bfd *, asymbol *,
symbol_info *));
extern alent *_bfd_elf_get_lineno PARAMS ((bfd *, asymbol *));
extern boolean _bfd_elf_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
unsigned long));
extern boolean _bfd_elf_find_nearest_line PARAMS ((bfd *, asection *,
asymbol **,
bfd_vma, CONST char **,
CONST char **,
unsigned int *));
extern int _bfd_elf_sizeof_headers PARAMS ((bfd *, boolean));
extern boolean _bfd_elf_new_section_hook PARAMS ((bfd *, asection *));
/* If the target doesn't have reloc handling written yet: */
extern void _bfd_elf_no_info_to_howto PARAMS ((bfd *, arelent *,
Elf_Internal_Rela *));
asection *bfd_section_from_elf_index PARAMS ((bfd *, unsigned int));
boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
struct bfd_link_info *));
struct bfd_strtab_hash *_bfd_elf_stringtab_init PARAMS ((void));
boolean
_bfd_elf_link_record_dynamic_symbol PARAMS ((struct bfd_link_info *,
struct elf_link_hash_entry *));
boolean
_bfd_elf_compute_section_file_positions PARAMS ((bfd *,
struct bfd_link_info *));
void _bfd_elf_assign_file_positions_for_relocs PARAMS ((bfd *));
file_ptr _bfd_elf_assign_file_position_for_section PARAMS ((Elf_Internal_Shdr *,
file_ptr,
boolean));
boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
struct bfd_link_info *));
boolean _bfd_elf_create_got_section PARAMS ((bfd *,
struct bfd_link_info *));
extern const bfd_target *bfd_elf32_object_p PARAMS ((bfd *));
extern const bfd_target *bfd_elf32_core_file_p PARAMS ((bfd *));
@ -560,30 +634,7 @@ extern char *bfd_elf32_core_file_failing_command PARAMS ((bfd *));
extern int bfd_elf32_core_file_failing_signal PARAMS ((bfd *));
extern boolean bfd_elf32_core_file_matches_executable_p PARAMS ((bfd *,
bfd *));
extern boolean bfd_elf32_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
file_ptr,
bfd_size_type));
extern long bfd_elf32_get_symtab_upper_bound PARAMS ((bfd *));
extern long bfd_elf32_get_symtab PARAMS ((bfd *, asymbol **));
extern long bfd_elf32_get_dynamic_symtab_upper_bound PARAMS ((bfd *));
extern long bfd_elf32_canonicalize_dynamic_symtab PARAMS ((bfd *, asymbol **));
extern long bfd_elf32_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
extern long bfd_elf32_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
arelent **, asymbol **));
extern asymbol *bfd_elf32_make_empty_symbol PARAMS ((bfd *));
extern void bfd_elf32_get_symbol_info PARAMS ((bfd *, asymbol *,
symbol_info *));
extern alent *bfd_elf32_get_lineno PARAMS ((bfd *, asymbol *));
extern boolean bfd_elf32_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
unsigned long));
extern boolean bfd_elf32_find_nearest_line PARAMS ((bfd *, asection *,
asymbol **,
bfd_vma, CONST char **,
CONST char **,
unsigned int *));
extern int bfd_elf32_sizeof_headers PARAMS ((bfd *, boolean));
extern boolean bfd_elf32_new_section_hook PARAMS ((bfd *, asection *));
extern boolean bfd_elf32_bfd_link_add_symbols
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean bfd_elf32_bfd_final_link
@ -592,7 +643,7 @@ extern boolean bfd_elf32_bfd_final_link
extern void bfd_elf32_swap_symbol_in
PARAMS ((bfd *, Elf32_External_Sym *, Elf_Internal_Sym *));
extern void bfd_elf32_swap_symbol_out
PARAMS ((bfd *, Elf_Internal_Sym *, Elf32_External_Sym *));
PARAMS ((bfd *, Elf_Internal_Sym *, char *));
extern void bfd_elf32_swap_reloc_in
PARAMS ((bfd *, Elf32_External_Rel *, Elf_Internal_Rel *));
extern void bfd_elf32_swap_reloc_out
@ -609,12 +660,6 @@ extern boolean bfd_elf32_add_dynamic_entry
PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
extern boolean bfd_elf32_link_create_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean bfd_elf32_link_record_dynamic_symbol
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
/* If the target doesn't have reloc handling written yet: */
extern void bfd_elf32_no_info_to_howto PARAMS ((bfd *, arelent *,
Elf32_Internal_Rela *));
extern const bfd_target *bfd_elf64_object_p PARAMS ((bfd *));
extern const bfd_target *bfd_elf64_core_file_p PARAMS ((bfd *));
@ -622,30 +667,6 @@ extern char *bfd_elf64_core_file_failing_command PARAMS ((bfd *));
extern int bfd_elf64_core_file_failing_signal PARAMS ((bfd *));
extern boolean bfd_elf64_core_file_matches_executable_p PARAMS ((bfd *,
bfd *));
extern boolean bfd_elf64_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
file_ptr,
bfd_size_type));
extern long bfd_elf64_get_symtab_upper_bound PARAMS ((bfd *));
extern long bfd_elf64_get_symtab PARAMS ((bfd *, asymbol **));
extern long bfd_elf64_get_dynamic_symtab_upper_bound PARAMS ((bfd *));
extern long bfd_elf64_canonicalize_dynamic_symtab PARAMS ((bfd *, asymbol **));
extern long bfd_elf64_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
extern long bfd_elf64_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
arelent **, asymbol **));
extern asymbol *bfd_elf64_make_empty_symbol PARAMS ((bfd *));
extern void bfd_elf64_get_symbol_info PARAMS ((bfd *, asymbol *,
symbol_info *));
extern alent *bfd_elf64_get_lineno PARAMS ((bfd *, asymbol *));
extern boolean bfd_elf64_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
unsigned long));
extern boolean bfd_elf64_find_nearest_line PARAMS ((bfd *, asection *,
asymbol **,
bfd_vma, CONST char **,
CONST char **,
unsigned int *));
extern int bfd_elf64_sizeof_headers PARAMS ((bfd *, boolean));
extern boolean bfd_elf64_new_section_hook PARAMS ((bfd *, asection *));
extern boolean bfd_elf64_bfd_link_add_symbols
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean bfd_elf64_bfd_final_link
@ -671,11 +692,8 @@ extern boolean bfd_elf64_add_dynamic_entry
PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
extern boolean bfd_elf64_link_create_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean bfd_elf64_link_record_dynamic_symbol
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
/* If the target doesn't have reloc handling written yet: */
extern void bfd_elf64_no_info_to_howto PARAMS ((bfd *, arelent *,
Elf64_Internal_Rela *));
#define bfd_elf32_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol
#define bfd_elf64_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol
#endif /* _LIBELF_H_ */