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| author | Nick Clifton <nickc@redhat.com> | 2005-04-27 10:09:43 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2005-04-27 10:09:43 +0000 |
| commit | 8c19749adc5f155f7a51f1799cd3494851c75909 (patch) | |
| tree | 530bb469312d7c6df1444ea8ed0ced110dd0aa89 /bfd | |
| parent | f3429a74c5fde5da2bc2f56544c3149d823a1930 (diff) | |
| download | gdb-8c19749adc5f155f7a51f1799cd3494851c75909.zip gdb-8c19749adc5f155f7a51f1799cd3494851c75909.tar.gz gdb-8c19749adc5f155f7a51f1799cd3494851c75909.tar.bz2 | |
(elf_link_input_bfd): Handle the case where a badly formatted input file results
in a reloc which has no associated global symbol
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/elflink.c | 17 |
2 files changed, 23 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index bf49cc0..2e70d77 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2005-04-27 Nick Clifton <nickc@redhat.com> + + * elflink.c (elf_link_input_bfd): Handle the case where a badly + formatted input file results in a reloc which has no associated + global symbol. + 2005-04-26 Jerome Guitton <guitton@gnat.com> * bfd.m4 (BFD_NEED_DECLARATION): Restore. diff --git a/bfd/elflink.c b/bfd/elflink.c index cd9131e..bf21780 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -7019,6 +7019,23 @@ elf_link_input_bfd (struct elf_final_link_info *finfo, bfd *input_bfd) && finfo->sections[r_symndx] == NULL)) { h = sym_hashes[r_symndx - extsymoff]; + + /* Badly formatted input files can contain relocs that + reference non-existant symbols. Check here so that + we do not seg fault. */ + if (h == NULL) + { + char buffer [32]; + + sprintf_vma (buffer, rel->r_info); + (*_bfd_error_handler) + (_("error: %B contains a reloc (0x%s) for section %A " + "that references a non-existent global symbol"), + input_bfd, o, buffer); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + while (h->root.type == bfd_link_hash_indirect || h->root.type == bfd_link_hash_warning) h = (struct elf_link_hash_entry *) h->root.u.i.link; |