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PR ld/5692

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* elf.c (bfd_elf_get_elf_syms): Check the return value of get_elf_backend_data.
This commit is contained in:
Nick Clifton
2008-01-31 10:48:35 +00:00
parent 9cc8ae67f6
commit b7c368d0b6
2 changed files with 13 additions and 2 deletions
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6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2008-01-31 Nick Clifton <nickc@redhat.com>
PR ld/5692
* elf.c (bfd_elf_get_elf_syms): Check the return value of
get_elf_backend_data.
2008-01-28 Fabian Groffen <grobian@gentoo.org> 2008-01-28 Fabian Groffen <grobian@gentoo.org>
* config.bfd (x86_64-*-solaris2): Add support for this target. * config.bfd (x86_64-*-solaris2): Add support for this target.

9
bfd/elf.c
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@ -1,7 +1,7 @@
/* ELF executable support for BFD. /* ELF executable support for BFD.
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library. This file is part of BFD, the Binary File Descriptor library.
@ -326,7 +326,9 @@ bfd_elf_string_from_elf_section (bfd *abfd,
SYMCOUNT specifies the number of symbols to read, starting from SYMCOUNT specifies the number of symbols to read, starting from
symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF
are non-NULL, they are used to store the internal symbols, external are non-NULL, they are used to store the internal symbols, external
symbols, and symbol section index extensions, respectively. */ symbols, and symbol section index extensions, respectively.
Returns a pointer to the internal symbol buffer (malloced if necessary)
or NULL if there were no symbols or some kind of problem. */
Elf_Internal_Sym * Elf_Internal_Sym *
bfd_elf_get_elf_syms (bfd *ibfd, bfd_elf_get_elf_syms (bfd *ibfd,
@ -361,6 +363,9 @@ bfd_elf_get_elf_syms (bfd *ibfd,
alloc_ext = NULL; alloc_ext = NULL;
alloc_extshndx = NULL; alloc_extshndx = NULL;
bed = get_elf_backend_data (ibfd); bed = get_elf_backend_data (ibfd);
/* PR ld/5692: Check for non-ELF files. */
if (bed == NULL)
return NULL;
extsym_size = bed->s->sizeof_sym; extsym_size = bed->s->sizeof_sym;
amt = symcount * extsym_size; amt = symcount * extsym_size;
pos = symtab_hdr->sh_offset + symoffset * extsym_size; pos = symtab_hdr->sh_offset + symoffset * extsym_size;