From: mquinson <mquinson@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Wed, 23 Jan 2008 15:58:45 +0000 (+0000)
Subject: And now, fix the linux layer for backtrace extraction by not using values of backtrac... 
X-Git-Tag: v3.3~637
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/ecd2c6ffbf406f1dc3b8fac525f5f3c009a3540c

And now, fix the linux layer for backtrace extraction by not using values of backtrace (ie, e->bt & e->used) before actually calling the backtrace function

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@5228 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---

diff --git a/src/xbt/backtrace_linux.c b/src/xbt/backtrace_linux.c
index a74a12914b..63ca68efa4 100644
--- a/src/xbt/backtrace_linux.c
+++ b/src/xbt/backtrace_linux.c
@@ -20,13 +20,13 @@ void xbt_ex_setup_backtrace(xbt_ex_t * e)
   int i;
 
   /* to get the backtrace from the libc */
-  char **backtrace_syms = backtrace_symbols(e->bt, e->used);
+  char **backtrace_syms;
 
   /* To build the commandline of addr2line */
   char *cmd, *curr;
 
   /* to extract the addresses from the backtrace */
-  char **addrs = xbt_new(char *, e->used);
+  char **addrs;
   char buff[256], *p;
 
   /* To read the output of addr2line */
@@ -39,8 +39,11 @@ void xbt_ex_setup_backtrace(xbt_ex_t * e)
   /* To search for the right executable path when not trivial */
   struct stat stat_buf;
   char *binary_name = NULL;
-
+   
   e->used = backtrace((void **) e->bt, XBT_BACKTRACE_SIZE);
+  backtrace_syms = backtrace_symbols(e->bt, e->used);
+  addrs = xbt_new(char *, e->used);
+   
   e->bt_strings = NULL;
 
   /* Some arches only have stubs of backtrace, no implementation (hppa comes to mind) */