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authorUlrich Drepper <drepper@redhat.com>1998-02-27 18:32:03 +0000
committerUlrich Drepper <drepper@redhat.com>1998-02-27 18:32:03 +0000
commitf024c19647c20b3529372cb41682b4cf962447c4 (patch)
tree92d528f2c61b8e3d638cfda4b0f5d7304d3a758d /elf/dl-addr.c
parent227d9931ef8b8c9879e14fab19ee134411a04d5e (diff)
downloadglibc-f024c19647c20b3529372cb41682b4cf962447c4.tar.gz
Update.
* misc/syslog.c: Change to allow user the interpretation of the outcome even with syslog having no return value. 1998-02-05 20:41 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> * elf/dl-addr.c: Fix search algorithms in dladdr(); don't assume that the number of program headers is >0 (which is wrong for the loader itself). 1998-02-27 Ulrich Drepper <drepper@cygnus.com>
Diffstat (limited to 'elf/dl-addr.c')
-rw-r--r--elf/dl-addr.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/elf/dl-addr.c b/elf/dl-addr.c
index baa6df593e..4d78738e64 100644
--- a/elf/dl-addr.c
+++ b/elf/dl-addr.c
@@ -1,5 +1,5 @@
/* Locate the shared object symbol nearest a given address.
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -41,13 +41,16 @@ _dl_addr (const void *address, Dl_info *info)
/* We know ADDRESS lies within MATCH if in any shared object.
Make sure it isn't past the end of MATCH's segments. */
size_t n = match->l_phnum;
- do
- --n;
- while (match->l_phdr[n].p_type != PT_LOAD);
- if (addr >= (match->l_addr +
- match->l_phdr[n].p_vaddr + match->l_phdr[n].p_memsz))
- /* Off the end of the highest-addressed shared object. */
- return 0;
+ if (n > 0)
+ {
+ do
+ --n;
+ while (match->l_phdr[n].p_type != PT_LOAD);
+ if (addr >= (match->l_addr +
+ match->l_phdr[n].p_vaddr + match->l_phdr[n].p_memsz))
+ /* Off the end of the highest-addressed shared object. */
+ return 0;
+ }
}
else
return 0;