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| author | Pedro Alves <palves@redhat.com> | 2009-06-20 00:16:02 +0000 |
|---|---|---|
| committer | Pedro Alves <palves@redhat.com> | 2009-06-20 00:16:02 +0000 |
| commit | 0763ab812686d5587c7db200cb84ccafd655e243 (patch) | |
| tree | 60fb52b71b6b34a8922c25c7e64db73d71573d24 /gdb/solib-svr4.c | |
| parent | 9f74293adbdf8829d95a97c09d5a703f1f8d1daf (diff) | |
| download | gdb-0763ab812686d5587c7db200cb84ccafd655e243.zip gdb-0763ab812686d5587c7db200cb84ccafd655e243.tar.gz gdb-0763ab812686d5587c7db200cb84ccafd655e243.tar.bz2 | |
* solib-svr4.c (IGNORE_FIRST_LINK_MAP_ENTRY): Avoid dereferencing
NULL pointer.
(scan_dyntag): Skip if input bfd isn't elf flavoured.
(locate_base): Call elf_locate_base even without an exec_bfd.
Diffstat (limited to 'gdb/solib-svr4.c')
| -rw-r--r-- | gdb/solib-svr4.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c index 9c2fdda..29ccbb6 100644 --- a/gdb/solib-svr4.c +++ b/gdb/solib-svr4.c @@ -266,7 +266,7 @@ IGNORE_FIRST_LINK_MAP_ENTRY (struct so_list *so) /* Assume that everything is a library if the dynamic loader was loaded late by a static executable. */ - if (bfd_get_section_by_name (exec_bfd, ".dynamic") == NULL) + if (exec_bfd && bfd_get_section_by_name (exec_bfd, ".dynamic") == NULL) return 0; return extract_typed_address (so->lm_info->lm + lmo->l_prev_offset, @@ -600,9 +600,13 @@ scan_dyntag (int dyntag, bfd *abfd, CORE_ADDR *ptr) if (abfd == NULL) return 0; + + if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) + return 0; + arch_size = bfd_get_arch_size (abfd); if (arch_size == -1) - return 0; + return 0; /* Find the start address of the .dynamic section. */ sect = bfd_get_section_by_name (abfd, ".dynamic"); @@ -825,11 +829,7 @@ locate_base (struct svr4_info *info) though if we don't have some link map offsets to work with. */ if (info->debug_base == 0 && svr4_have_link_map_offsets ()) - { - if (exec_bfd != NULL - && bfd_get_flavour (exec_bfd) == bfd_target_elf_flavour) - info->debug_base = elf_locate_base (); - } + info->debug_base = elf_locate_base (); return info->debug_base; } |