From 601acd615834d15fbb7994a79aca84beb7b84d6d Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 10 Jun 1997 21:46:23 +0000 Subject: [PATCH] (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. --- bfd/ChangeLog | 9 ++++ bfd/elflink.h | 121 ++++++++++++++++++++++++-------------------------- 2 files changed, 67 insertions(+), 63 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index d6337e69e20..2358308224b 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,12 @@ +1997-06-10 22:58 Ulrich Drepper + + * 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 * cpu-arm.c: Add prototypes for compatible and scan. diff --git a/bfd/elflink.h b/bfd/elflink.h index 905da426c5b..b295e10915c 100644 --- a/bfd/elflink.h +++ b/bfd/elflink.h @@ -395,57 +395,8 @@ elf_link_add_object_symbols (abfd, info) { /* Read in any version definitions. */ - if (elf_dynverdef (abfd) != 0) - { - 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; - } + if (! _bfd_elf_slurp_version_tables (abfd)) + goto error_return; /* Read in the symbol versions, but don't bother to convert them to internal format. */ @@ -807,19 +758,58 @@ elf_link_add_object_symbols (abfd, info) int namelen, newlen; char *newname, *p; - if (vernum > elf_tdata (abfd)->dynverdef_hdr.sh_info) + if (sym.st_shndx != SHN_UNDEF) { - (*_bfd_error_handler) - ("%s: %s: invalid version %d (max %d)", - abfd->filename, name, vernum, - elf_tdata (abfd)->dynverdef_hdr.sh_info); - bfd_set_error (bfd_error_bad_value); - goto error_return; + if (vernum > elf_tdata (abfd)->dynverdef_hdr.sh_info) + { + (*_bfd_error_handler) + ("%s: %s: invalid version %d (max %d)", + abfd->filename, name, vernum, + 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 - 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); 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_cnt = caux; - indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr, - t->vn_bfd->filename, true, false); + if (elf_dt_name (t->vn_bfd) != NULL) + 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) return false; t->vn_file = indx; -- 2.30.2