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Diffstat (limited to 'xorg-server/os/backtrace.c')
-rw-r--r--xorg-server/os/backtrace.c48
1 files changed, 30 insertions, 18 deletions
diff --git a/xorg-server/os/backtrace.c b/xorg-server/os/backtrace.c
index b52dcded8..a421140fb 100644
--- a/xorg-server/os/backtrace.c
+++ b/xorg-server/os/backtrace.c
@@ -2,22 +2,23 @@
* Copyright 2008 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software")
- * to deal in the software without restriction, including without limitation
- * on the rights to use, copy, modify, merge, publish, distribute, sub
- * license, and/or sell copies of the Software, and to permit persons to whom
- * them Software is furnished to do so, subject to the following conditions:
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTIBILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER
- * IN AN ACTION OF CONTRACT, TORT, OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*/
#ifdef HAVE_DIX_CONFIG_H
@@ -28,19 +29,30 @@
#include "misc.h"
#ifdef HAVE_BACKTRACE
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <dlfcn.h>
#include <execinfo.h>
void xorg_backtrace(void)
{
- void *array[32]; /* deeper nesting than this means something's wrong */
- size_t size, i;
- char **strings;
+ void *array[64];
+ char *mod;
+ int size, i;
+ Dl_info info;
ErrorF("\nBacktrace:\n");
- size = backtrace(array, 32);
- strings = backtrace_symbols(array, size);
- for (i = 0; i < size; i++)
- ErrorF("%d: %s\n", i, strings[i]);
- free(strings);
+ size = backtrace(array, 64);
+ for (i = 0; i < size; i++) {
+ dladdr(array[i], &info);
+ mod = (info.dli_fname && *info.dli_fname) ? info.dli_fname : "(vdso)";
+ if (info.dli_saddr)
+ ErrorF("%d: %s (%s+0x%lx) [%p]\n", i, mod,
+ info.dli_sname, array[i] - info.dli_saddr, array[i]);
+ else
+ ErrorF("%d: %s (%p+0x%lx) [%p]\n", i, mod,
+ info.dli_fbase, array[i] - info.dli_fbase, array[i]);
+ }
}
#else /* not glibc or glibc < 2.1 */