diff options
Diffstat (limited to 'libelf/elf32_offscn.c')
| -rw-r--r-- | libelf/elf32_offscn.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/libelf/elf32_offscn.c b/libelf/elf32_offscn.c index cdfdfad7..86eff8b1 100644 --- a/libelf/elf32_offscn.c +++ b/libelf/elf32_offscn.c @@ -1,5 +1,5 @@ /* Get section at specific index. - Copyright (C) 2005 Red Hat, Inc. + Copyright (C) 2005, 2008 Red Hat, Inc. This file is part of Red Hat elfutils. Contributed by Ulrich Drepper <drepper@redhat.com>, 2005. @@ -77,12 +77,20 @@ elfw2(LIBELFBITS,offscn) (elf, offset) return NULL; } + Elf_ScnList *runp = &elf->state.ELFW(elf,LIBELFBITS).scns; + + /* If we have not looked at section headers before, + we might need to read them in first. */ + if (runp->cnt > 0 + && unlikely (runp->data[0].shdr.ELFW(e,LIBELFBITS) == NULL) + && unlikely (elfw2(LIBELFBITS,getshdr) (&runp->data[0]) == NULL)) + return NULL; + rwlock_rdlock (elf->lock); Elf_Scn *result = NULL; /* Find the section in the list. */ - Elf_ScnList *runp = &elf->state.ELFW(elf,LIBELFBITS).scns; while (1) { for (unsigned int i = 0; i < runp->cnt; ++i) |