* bfdlink.h (struct bfd_link_info): Delete emit_note_gnu_build_id.
bfd/
	* configure.in: Bump version to 2.23.52.
	* elf-bfd.h (struct elf_build_id_info): New.
	(struct elf_obj_tdata): Delete after_write_object_contents,
	after_write_object_contents_info and build_id_size.  Make build_id
	a pointer to struct elf_build_id_info.
	* elf.c (_bfd_elf_write_object_contents): Style.  Update
	after_write_ibject_contents invocation.
	(elfobj_grok_gnu_build_id): Update for new build_id struct.  Don't
	allow zero size notes.
	* configure: Regenerate.
gdb/
	* elfread.c (struct build_id): Delete.  Use struct elf_build_id
	throughout file instead.
	(build_id_bfd_get): Update to use new elf_tdata build_id field.
	Don't xmalloc return value.
	(build_id_verify): Similarly.  Don't xfree.
	(build_id_to_debug_filename): Update.
	(find_separate_debug_file_by_buildid): Update, don't xfree.
ld/
	* emultempl/elf32.em (emit_note_gnu_build_id): New static var.
	Replace all info->emit_note_gnu_build_id refs.
	(id_note_section_size): Rename from
	gld${EMULATION_NAME}_id_note_section_size.
	(struct build_id_info): Delete.
	(write_build_id): Rename from
	gld${EMULATION_NAME}_write_build_id_section.
	Update elf_tdata usage.  Style, formatting.
	(setup_build_id): New function.
	(gld${EMULATION_NAME}_after_open): Use setup_build_id.
This commit is contained in:
Alan Modra 2013-02-18 23:50:32 +00:00
parent 273e4eecfe
commit 30e8ee25e3
11 changed files with 179 additions and 139 deletions

View File

@ -1,3 +1,16 @@
2013-02-19 Alan Modra <amodra@gmail.com>
* configure.in: Bump version to 2.23.52.
* elf-bfd.h (struct elf_build_id_info): New.
(struct elf_obj_tdata): Delete after_write_object_contents,
after_write_object_contents_info and build_id_size. Make build_id
a pointer to struct elf_build_id_info.
* elf.c (_bfd_elf_write_object_contents): Style. Update
after_write_ibject_contents invocation.
(elfobj_grok_gnu_build_id): Update for new build_id struct. Don't
allow zero size notes.
* configure: Regenerate.
2013-02-18 Maciej W. Rozycki <macro@codesourcery.com>
* elf64-mips.c (micromips_elf64_howto_table_rel): Add

20
bfd/configure vendored
View File

@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.64 for bfd 2.23.51.
# Generated by GNU Autoconf 2.64 for bfd 2.23.52.
#
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software
@ -556,8 +556,8 @@ MAKEFLAGS=
# Identity of this package.
PACKAGE_NAME='bfd'
PACKAGE_TARNAME='bfd'
PACKAGE_VERSION='2.23.51'
PACKAGE_STRING='bfd 2.23.51'
PACKAGE_VERSION='2.23.52'
PACKAGE_STRING='bfd 2.23.52'
PACKAGE_BUGREPORT=''
PACKAGE_URL=''
@ -1349,7 +1349,7 @@ if test "$ac_init_help" = "long"; then
# Omit some internal or obsolete options to make the list less imposing.
# This message is too long to be a string in the A/UX 3.1 sh.
cat <<_ACEOF
\`configure' configures bfd 2.23.51 to adapt to many kinds of systems.
\`configure' configures bfd 2.23.52 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@ -1420,7 +1420,7 @@ fi
if test -n "$ac_init_help"; then
case $ac_init_help in
short | recursive ) echo "Configuration of bfd 2.23.51:";;
short | recursive ) echo "Configuration of bfd 2.23.52:";;
esac
cat <<\_ACEOF
@ -1541,7 +1541,7 @@ fi
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
bfd configure 2.23.51
bfd configure 2.23.52
generated by GNU Autoconf 2.64
Copyright (C) 2009 Free Software Foundation, Inc.
@ -2183,7 +2183,7 @@ cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by bfd $as_me 2.23.51, which was
It was created by bfd $as_me 2.23.52, which was
generated by GNU Autoconf 2.64. Invocation command line was
$ $0 $@
@ -3991,7 +3991,7 @@ fi
# Define the identity of the package.
PACKAGE='bfd'
VERSION='2.23.51'
VERSION='2.23.52'
cat >>confdefs.h <<_ACEOF
@ -16470,7 +16470,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
This file was extended by bfd $as_me 2.23.51, which was
This file was extended by bfd $as_me 2.23.52, which was
generated by GNU Autoconf 2.64. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@ -16534,7 +16534,7 @@ Report bugs to the package provider."
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_version="\\
bfd config.status 2.23.51
bfd config.status 2.23.52
configured by $0, generated by GNU Autoconf 2.64,
with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"

View File

@ -18,7 +18,7 @@ dnl <http://www.gnu.org/licenses/>.
dnl
AC_PREREQ(2.59)
AC_INIT([bfd], [2.23.51])
AC_INIT([bfd], [2.23.52])
AC_CONFIG_SRCDIR([libbfd.c])
AC_CANONICAL_TARGET

View File

@ -1512,6 +1512,28 @@ struct sdt_note
bfd_byte data[1];
};
/* NT_GNU_BUILD_ID note type info. */
struct elf_build_id_info
{
union
{
/* Used on output bfd by linker. */
struct elf_build_id_out
{
size_t zero; /* Always zero */
bfd_boolean (*after_write_object_contents) (bfd *);
const char *style;
asection *sec;
} o;
/* Used for input bfd. */
struct elf_build_id
{
size_t size; /* Always non-zero */
bfd_byte data[1];
} i;
} u;
};
/* Some private data is stashed away for future use using the tdata pointer
in the bfd structure. */
@ -1645,13 +1667,8 @@ struct elf_obj_tdata
obj_attribute known_obj_attributes[2][NUM_KNOWN_OBJ_ATTRIBUTES];
obj_attribute_list *other_obj_attributes[2];
/* Called at the end of _bfd_elf_write_object_contents if not NULL. */
bfd_boolean (*after_write_object_contents) (bfd *);
void *after_write_object_contents_info;
/* NT_GNU_BUILD_ID note type. */
bfd_size_type build_id_size;
bfd_byte *build_id;
struct elf_build_id_info *build_id;
/* Linked-list containing information about every Systemtap section
found in the object file. Each section corresponds to one entry

View File

@ -5292,6 +5292,7 @@ _bfd_elf_write_object_contents (bfd *abfd)
Elf_Internal_Shdr **i_shdrp;
bfd_boolean failed;
unsigned int count, num_sec;
struct elf_obj_tdata *t;
if (! abfd->output_has_begun
&& ! _bfd_elf_compute_section_file_positions (abfd, NULL))
@ -5323,21 +5324,22 @@ _bfd_elf_write_object_contents (bfd *abfd)
}
/* Write out the section header names. */
t = elf_tdata (abfd);
if (elf_shstrtab (abfd) != NULL
&& (bfd_seek (abfd, elf_tdata (abfd)->shstrtab_hdr.sh_offset, SEEK_SET) != 0
&& (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0
|| !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd))))
return FALSE;
if (bed->elf_backend_final_write_processing)
(*bed->elf_backend_final_write_processing) (abfd,
elf_tdata (abfd)->linker);
(*bed->elf_backend_final_write_processing) (abfd, t->linker);
if (!bed->s->write_shdrs_and_ehdr (abfd))
return FALSE;
/* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */
if (elf_tdata (abfd)->after_write_object_contents)
return (*elf_tdata (abfd)->after_write_object_contents) (abfd);
if (t->build_id != NULL
&& t->build_id->u.o.zero == 0)
return (*t->build_id->u.o.after_write_object_contents) (abfd);
return TRUE;
}
@ -8692,12 +8694,18 @@ elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note)
static bfd_boolean
elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note)
{
elf_tdata (abfd)->build_id_size = note->descsz;
elf_tdata (abfd)->build_id = (bfd_byte *) bfd_alloc (abfd, note->descsz);
if (elf_tdata (abfd)->build_id == NULL)
struct elf_obj_tdata *t;
if (note->descsz == 0)
return FALSE;
memcpy (elf_tdata (abfd)->build_id, note->descdata, note->descsz);
t = elf_tdata (abfd);
t->build_id = bfd_alloc (abfd, sizeof (t->build_id->u.i) - 1 + note->descsz);
if (t->build_id == NULL)
return FALSE;
t->build_id->u.i.size = note->descsz;
memcpy (t->build_id->u.i.data, note->descdata, note->descsz);
return TRUE;
}

View File

@ -1,3 +1,13 @@
2013-02-19 Alan Modra <amodra@gmail.com>
* elfread.c (struct build_id): Delete. Use struct elf_build_id
throughout file instead.
(build_id_bfd_get): Update to use new elf_tdata build_id field.
Don't xmalloc return value.
(build_id_verify): Similarly. Don't xfree.
(build_id_to_debug_filename): Update.
(find_separate_debug_file_by_buildid): Update, don't xfree.
2013-02-18 Tom Tromey <tromey@redhat.com>
PR gdb/15102:
@ -1151,7 +1161,7 @@
2013-01-24 Tiago Stürmer Daitx  <tdaitx@linux.vnet.ibm.com>
* MAINTAINERS (Write After Approval): Add myself to the list.
* MAINTAINERS (Write After Approval): Add myself to the list.
2013-01-24 Tom Tromey <tromey@redhat.com>

View File

@ -1074,38 +1074,27 @@ elf_gnu_ifunc_resolver_return_stop (struct breakpoint *b)
update_breakpoint_locations (b, sals, sals_end);
}
struct build_id
{
size_t size;
gdb_byte data[1];
};
/* Locate NT_GNU_BUILD_ID from ABFD and return its content. */
static struct build_id *
static struct elf_build_id *
build_id_bfd_get (bfd *abfd)
{
struct build_id *retval;
if (!bfd_check_format (abfd, bfd_object)
|| bfd_get_flavour (abfd) != bfd_target_elf_flavour
|| elf_tdata (abfd)->build_id == NULL)
|| elf_tdata (abfd)->build_id == NULL
|| elf_tdata (abfd)->build_id->u.i.size == 0)
return NULL;
retval = xmalloc (sizeof *retval - 1 + elf_tdata (abfd)->build_id_size);
retval->size = elf_tdata (abfd)->build_id_size;
memcpy (retval->data, elf_tdata (abfd)->build_id, retval->size);
return retval;
return &elf_tdata (abfd)->build_id->u.i;
}
/* Return if FILENAME has NT_GNU_BUILD_ID matching the CHECK value. */
static int
build_id_verify (const char *filename, struct build_id *check)
build_id_verify (const char *filename, struct elf_build_id *check)
{
bfd *abfd;
struct build_id *found = NULL;
struct elf_build_id *found;
int retval = 0;
/* We expect to be silent on the non-existing files. */
@ -1126,13 +1115,11 @@ build_id_verify (const char *filename, struct build_id *check)
gdb_bfd_unref (abfd);
xfree (found);
return retval;
}
static char *
build_id_to_debug_filename (struct build_id *build_id)
build_id_to_debug_filename (struct elf_build_id *build_id)
{
char *link, *debugdir, *retval = NULL;
VEC (char_ptr) *debugdir_vec;
@ -1191,7 +1178,7 @@ build_id_to_debug_filename (struct build_id *build_id)
static char *
find_separate_debug_file_by_buildid (struct objfile *objfile)
{
struct build_id *build_id;
struct elf_build_id *build_id;
build_id = build_id_bfd_get (objfile->obfd);
if (build_id != NULL)
@ -1199,7 +1186,6 @@ find_separate_debug_file_by_buildid (struct objfile *objfile)
char *build_id_name;
build_id_name = build_id_to_debug_filename (build_id);
xfree (build_id);
/* Prevent looping on a stripped .debug file. */
if (build_id_name != NULL
&& filename_cmp (build_id_name, objfile->name) == 0)

View File

@ -1,7 +1,11 @@
2013-02-19 Alan Modra <amodra@gmail.com>
* bfdlink.h (struct bfd_link_info): Delete emit_note_gnu_build_id.
2013-02-11 Sriraman Tallam <tmsriram@google.com>
* plugin-api.h (enum ld_plugin_level): Assign integers
explicitly for all values.
explicitly for all values.
2013-02-06 Sandra Loosemore <sandra@codesourcery.com>
Andrew Jenner <andrew@codesourcery.com>
@ -153,8 +157,7 @@
2012-08-02 Sean Keys <skeys@ipdatasys.com>
* elf/m68hc11.h: #define E_M68HC11_NO_BANK_WARNING
0x000000200
* elf/m68hc11.h: #define E_M68HC11_NO_BANK_WARNING 0x000000200
2012-07-24 Stephan McCamant <smcc@cs.berkeley.edu>
Dr David Alan Gilbert <dave@treblig.org>
@ -173,8 +176,8 @@
2012-07-05 Sean Keys <skeys@ipdatasys.com>
* opcode/xgate.h: Changed the format string for mode
XGATE_OP_DYA_MON.
* opcode/xgate.h: Changed the format string for mode
XGATE_OP_DYA_MON.
2012-06-18 Doug Evans <dje@google.com>

View File

@ -469,9 +469,6 @@ struct bfd_link_info
bfd *input_bfds;
bfd **input_bfds_tail;
/* Non-NULL if .note.gnu.build-id section should be created. */
char *emit_note_gnu_build_id;
/* If a symbol should be created for each input BFD, this is section
where those symbols should be placed. It must be a section in
the output BFD. It may be NULL, in which case no such symbols

View File

@ -1,3 +1,16 @@
2013-02-19 Alan Modra <amodra@gmail.com>
* emultempl/elf32.em (emit_note_gnu_build_id): New static var.
Replace all info->emit_note_gnu_build_id refs.
(id_note_section_size): Rename from
gld${EMULATION_NAME}_id_note_section_size.
(struct build_id_info): Delete.
(write_build_id): Rename from
gld${EMULATION_NAME}_write_build_id_section.
Update elf_tdata usage. Style, formatting.
(setup_build_id): New function.
(gld${EMULATION_NAME}_after_open): Use setup_build_id.
2013-02-16 H.J. Lu <hongjiu.lu@intel.com>
PR ld/15146

View File

@ -165,6 +165,9 @@ static bfd_boolean global_vercheck_failed;
static char *audit; /* colon (typically) separated list of libs */
static char *depaudit; /* colon (typically) separated list of libs */
/* Style of .note.gnu.build-id section. */
static const char *emit_note_gnu_build_id;
/* On Linux, it's possible to have different versions of the same
shared library linked against different versions of libc. The
dynamic linker somehow tags which libc version to use in
@ -890,10 +893,9 @@ if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
fragment <<EOF
static bfd_size_type
gld${EMULATION_NAME}_id_note_section_size (bfd *abfd,
struct bfd_link_info *linfo)
id_note_section_size (bfd *abfd)
{
const char *style = linfo->emit_note_gnu_build_id;
const char *style = emit_note_gnu_build_id;
bfd_size_type size;
abfd = abfd;
@ -944,25 +946,22 @@ read_hex (const char xdigit)
return 0;
}
struct build_id_info
{
const char *style;
asection *sec;
};
static bfd_boolean
gld${EMULATION_NAME}_write_build_id_section (bfd *abfd)
write_build_id (bfd *abfd)
{
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
struct build_id_info *info = (struct build_id_info *)
elf_tdata (abfd)->after_write_object_contents_info;
struct elf_obj_tdata *t = elf_tdata (abfd);
const char *style;
asection *asec;
Elf_Internal_Shdr *i_shdr;
unsigned char *contents, *id_bits;
bfd_size_type size;
file_ptr position;
Elf_External_Note *e_note;
typedef void (*sum_fn) (const void *, size_t, void *);
asec = info->sec;
style = t->build_id->u.o.style;
asec = t->build_id->u.o.sec;
if (bfd_is_abs_section (asec->output_section))
{
einfo (_("%P: warning: .note.gnu.build-id section discarded,"
@ -991,31 +990,25 @@ gld${EMULATION_NAME}_write_build_id_section (bfd *abfd)
bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type);
memcpy (e_note->name, "GNU", sizeof "GNU");
if (!strcmp (info->style, "md5"))
if (strcmp (style, "md5") == 0)
{
struct md5_ctx ctx;
md5_init_ctx (&ctx);
if (bed->s->checksum_contents (abfd,
(void (*) (const void *, size_t, void *))
&md5_process_bytes,
&ctx))
md5_finish_ctx (&ctx, id_bits);
else
if (!bed->s->checksum_contents (abfd, (sum_fn) &md5_process_bytes, &ctx))
return FALSE;
md5_finish_ctx (&ctx, id_bits);
}
else if (!strcmp (info->style, "sha1"))
else if (strcmp (style, "sha1") == 0)
{
struct sha1_ctx ctx;
sha1_init_ctx (&ctx);
if (bed->s->checksum_contents (abfd,
(void (*) (const void *, size_t, void *))
&sha1_process_bytes,
&ctx))
sha1_finish_ctx (&ctx, id_bits);
else
if (!bed->s->checksum_contents (abfd, (sum_fn) &sha1_process_bytes, &ctx))
return FALSE;
sha1_finish_ctx (&ctx, id_bits);
}
else if (!strcmp (info->style, "uuid"))
else if (strcmp (style, "uuid") == 0)
{
int n;
int fd = open ("/dev/urandom", O_RDONLY);
@ -1026,10 +1019,10 @@ gld${EMULATION_NAME}_write_build_id_section (bfd *abfd)
if (n < (int) size)
return FALSE;
}
else if (!strncmp (info->style, "0x", 2))
else if (strncmp (style, "0x", 2) == 0)
{
/* ID is in string form (hex). Convert to bits. */
const char *id = info->style + 2;
const char *id = style + 2;
size_t n = 0;
do
{
@ -1047,12 +1040,51 @@ gld${EMULATION_NAME}_write_build_id_section (bfd *abfd)
else
abort (); /* Should have been validated earlier. */
position = i_shdr->sh_offset + asec->output_offset;
size = asec->size;
return (bfd_seek (abfd,
i_shdr->sh_offset + asec->output_offset, SEEK_SET) == 0
return (bfd_seek (abfd, position, SEEK_SET) == 0
&& bfd_bwrite (contents, size, abfd) == size);
}
/* Make .note.gnu.build-id section, and set up elf_tdata->build_id. */
static bfd_boolean
setup_build_id (bfd *ibfd)
{
asection *s;
bfd_size_type size;
flagword flags;
size = id_note_section_size (ibfd);
if (size == 0)
{
einfo ("%P: warning: unrecognized --build-id style ignored.\n");
return FALSE;
}
flags = (SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
| SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
s = bfd_make_section_with_flags (ibfd, ".note.gnu.build-id", flags);
if (s != NULL && bfd_set_section_alignment (ibfd, s, 2))
{
struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
t->build_id = bfd_alloc (link_info.output_bfd, sizeof (t->build_id->u.o));
if (t->build_id != NULL)
{
t->build_id->u.o.zero = 0;
t->build_id->u.o.after_write_object_contents = &write_build_id;
t->build_id->u.o.style = emit_note_gnu_build_id;
t->build_id->u.o.sec = s;
elf_section_type (s) = SHT_NOTE;
s->size = size;
return TRUE;
}
}
einfo ("%P: warning: Cannot create .note.gnu.build-id section,"
" --build-id ignored.\n");
return FALSE;
}
/* This is called after all the input files have been opened. */
@ -1068,11 +1100,9 @@ gld${EMULATION_NAME}_after_open (void)
if (!is_elf_hash_table (htab))
return;
if (link_info.emit_note_gnu_build_id)
if (emit_note_gnu_build_id != NULL)
{
bfd *abfd;
asection *s;
bfd_size_type size;
/* Find an ELF input. */
for (abfd = link_info.input_bfds;
@ -1080,50 +1110,13 @@ gld${EMULATION_NAME}_after_open (void)
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
break;
if (abfd == NULL)
/* PR 10555: If there are no ELF input files do not try to
create a .note.gnu-build-id section. */
if (abfd == NULL
|| !setup_build_id (abfd))
{
/* PR 10555: If there are no input files do not
try to create a .note.gnu-build-id section. */
free (link_info.emit_note_gnu_build_id);
link_info.emit_note_gnu_build_id = NULL;
}
else
{
size = gld${EMULATION_NAME}_id_note_section_size (abfd, &link_info);
if (size == 0)
{
einfo ("%P: warning: unrecognized --build-id style ignored.\n");
free (link_info.emit_note_gnu_build_id);
link_info.emit_note_gnu_build_id = NULL;
}
else
{
s = bfd_make_section_with_flags (abfd, ".note.gnu.build-id",
SEC_ALLOC | SEC_LOAD
| SEC_IN_MEMORY | SEC_LINKER_CREATED
| SEC_READONLY | SEC_DATA);
if (s != NULL && bfd_set_section_alignment (abfd, s, 2))
{
struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
struct build_id_info *b =
(struct build_id_info *) xmalloc (sizeof *b);
b->style = link_info.emit_note_gnu_build_id;
b->sec = s;
elf_section_type (s) = SHT_NOTE;
s->size = size;
t->after_write_object_contents
= &gld${EMULATION_NAME}_write_build_id_section;
t->after_write_object_contents_info = b;
}
else
{
einfo ("%P: warning: Cannot create .note.gnu.build-id section,"
" --build-id ignored.\n");
free (link_info.emit_note_gnu_build_id);
link_info.emit_note_gnu_build_id = NULL;
}
}
free ((char *) emit_note_gnu_build_id);
emit_note_gnu_build_id = NULL;
}
}
@ -2192,15 +2185,15 @@ gld${EMULATION_NAME}_handle_option (int optc)
return FALSE;
case OPTION_BUILD_ID:
if (link_info.emit_note_gnu_build_id != NULL)
if (emit_note_gnu_build_id != NULL)
{
free (link_info.emit_note_gnu_build_id);
link_info.emit_note_gnu_build_id = NULL;
free ((char *) emit_note_gnu_build_id);
emit_note_gnu_build_id = NULL;
}
if (optarg == NULL)
optarg = DEFAULT_BUILD_ID_STYLE;
if (strcmp (optarg, "none"))
link_info.emit_note_gnu_build_id = xstrdup (optarg);
emit_note_gnu_build_id = xstrdup (optarg);
break;
EOF