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(elf_link_add_object_symbols): Also read verneed

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information by calling `_bfd_elf_slurp_version_tables'.
(elf_link_add_object_symbols): For undefined symbols look for
version informaiton in the verneed records.
(elf_link_add_object_symbols): Use soname of shared object
for verneed record if it is available.
This commit is contained in:
Ulrich Drepper
1997-06-10 21:46:23 +00:00
parent 0a8fa63cb8
commit 601acd6158
2 changed files with 67 additions and 63 deletions
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9
bfd/ChangeLog
View File

@ -1,3 +1,12 @@
1997-06-10 22:58 Ulrich Drepper <drepper@cygnus.com>
* elflink.h (elf_link_add_object_symbols): Also read verneed
information by calling `_bfd_elf_slurp_version_tables'.
(elf_link_add_object_symbols): For undefined symbols look for
version informaiton in the verneed records.
(elf_link_add_object_symbols): Use soname of shared object
for verneed record if it is available.
Tue Jun 10 11:13:03 1997 H.J. Lu <hjl@gnu.ai.mit.edu> Tue Jun 10 11:13:03 1997 H.J. Lu <hjl@gnu.ai.mit.edu>
* cpu-arm.c: Add prototypes for compatible and scan. * cpu-arm.c: Add prototypes for compatible and scan.

121
bfd/elflink.h
View File

@ -395,57 +395,8 @@ elf_link_add_object_symbols (abfd, info)
{ {
/* Read in any version definitions. */ /* Read in any version definitions. */
if (elf_dynverdef (abfd) != 0) if (! _bfd_elf_slurp_version_tables (abfd))
{ goto error_return;
Elf_Internal_Shdr *verdefhdr;
bfd_byte *dynver;
int i;
const Elf_External_Verdef *extverdef;
Elf_Internal_Verdef *intverdef;
verdefhdr = &elf_tdata (abfd)->dynverdef_hdr;
elf_tdata (abfd)->verdef =
((Elf_Internal_Verdef *)
bfd_zalloc (abfd,
verdefhdr->sh_info * sizeof (Elf_Internal_Verdef)));
if (elf_tdata (abfd)->verdef == NULL)
goto error_return;
dynver = (bfd_byte *) bfd_malloc (verdefhdr->sh_size);
if (dynver == NULL)
goto error_return;
if (bfd_seek (abfd, verdefhdr->sh_offset, SEEK_SET) != 0
|| (bfd_read ((PTR) dynver, 1, verdefhdr->sh_size, abfd)
!= verdefhdr->sh_size))
goto error_return;
extverdef = (const Elf_External_Verdef *) dynver;
intverdef = elf_tdata (abfd)->verdef;
for (i = 0; i < verdefhdr->sh_info; i++, intverdef++)
{
const Elf_External_Verdaux *extverdaux;
Elf_Internal_Verdaux intverdaux;
_bfd_elf_swap_verdef_in (abfd, extverdef, intverdef);
/* Pick up the name of the version. */
extverdaux = ((const Elf_External_Verdaux *)
((bfd_byte *) extverdef + intverdef->vd_aux));
_bfd_elf_swap_verdaux_in (abfd, extverdaux, &intverdaux);
intverdef->vd_bfd = abfd;
intverdef->vd_nodename =
bfd_elf_string_from_elf_section (abfd, verdefhdr->sh_link,
intverdaux.vda_name);
extverdef = ((const Elf_External_Verdef *)
((bfd_byte *) extverdef + intverdef->vd_next));
}
free (dynver);
dynver = NULL;
}
/* Read in the symbol versions, but don't bother to convert them /* Read in the symbol versions, but don't bother to convert them
to internal format. */ to internal format. */
@ -807,19 +758,58 @@ elf_link_add_object_symbols (abfd, info)
int namelen, newlen; int namelen, newlen;
char *newname, *p; char *newname, *p;
if (vernum > elf_tdata (abfd)->dynverdef_hdr.sh_info) if (sym.st_shndx != SHN_UNDEF)
{ {
(*_bfd_error_handler) if (vernum > elf_tdata (abfd)->dynverdef_hdr.sh_info)
("%s: %s: invalid version %d (max %d)", {
abfd->filename, name, vernum, (*_bfd_error_handler)
elf_tdata (abfd)->dynverdef_hdr.sh_info); ("%s: %s: invalid version %d (max %d)",
bfd_set_error (bfd_error_bad_value); abfd->filename, name, vernum,
goto error_return; elf_tdata (abfd)->dynverdef_hdr.sh_info);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
else if (vernum > 1)
verstr =
elf_tdata (abfd)->verdef[vernum - 1].vd_nodename;
else
verstr = "";
} }
else if (vernum > 1)
verstr = elf_tdata (abfd)->verdef[vernum - 1].vd_nodename;
else else
verstr = ""; {
/* We cannot simply test for the number of
entries in the VERNEED section since the
numbers for the needed versions do not start
at 0. */
Elf_Internal_Verneed *t;
verstr = NULL;
for (t = elf_tdata (abfd)->verref;
t != NULL;
t = t->vn_nextref)
{
Elf_Internal_Vernaux *a;
for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
{
if (a->vna_other == vernum)
{
verstr = a->vna_nodename;
break;
}
}
if (a != NULL)
break;
}
if (verstr == NULL)
{
(*_bfd_error_handler)
("%s: %s: invalid needed version %d",
abfd->filename, name, vernum);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
}
namelen = strlen (name); namelen = strlen (name);
newlen = namelen + strlen (verstr) + 2; newlen = namelen + strlen (verstr) + 2;
@ -2479,8 +2469,13 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
t->vn_version = VER_NEED_CURRENT; t->vn_version = VER_NEED_CURRENT;
t->vn_cnt = caux; t->vn_cnt = caux;
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr, if (elf_dt_name (t->vn_bfd) != NULL)
t->vn_bfd->filename, true, false); indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
elf_dt_name (t->vn_bfd),
true, false);
else
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
t->vn_bfd->filename, true, false);
if (indx == (bfd_size_type) -1) if (indx == (bfd_size_type) -1)
return false; return false;
t->vn_file = indx; t->vn_file = indx;