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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /sysdeps/unix/sysv/linux/libc_fatal.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
downloadglibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz
2.5-18.1
Diffstat (limited to 'sysdeps/unix/sysv/linux/libc_fatal.c')
-rw-r--r--sysdeps/unix/sysv/linux/libc_fatal.c32
1 files changed, 29 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/libc_fatal.c b/sysdeps/unix/sysv/linux/libc_fatal.c
index a79cfbabb9..c7fac6ab51 100644
--- a/sysdeps/unix/sysv/linux/libc_fatal.c
+++ b/sysdeps/unix/sysv/linux/libc_fatal.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993-1995,1997,2000,2002-2004 Free Software Foundation, Inc.
+/* Copyright (C) 1993-1995,1997,2000,2002-2005 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
@@ -27,6 +27,7 @@
#include <sysdep.h>
#include <unistd.h>
#include <sys/syslog.h>
+#include <execinfo.h>
/* Abort with an error message. */
#include <not-cancel.h>
@@ -141,8 +142,33 @@ __libc_message (int do_abort, const char *fmt, ...)
va_end (ap_copy);
if (do_abort)
- /* Terminate the process. */
- abort ();
+ {
+ if (do_abort > 1 && written)
+ {
+ void *addrs[64];
+#define naddrs (sizeof (addrs) / sizeof (addrs[0]))
+ int n = __backtrace (addrs, naddrs);
+ if (n > 2)
+ {
+#define strnsize(str) str, strlen (str)
+#define writestr(str) write_not_cancel (fd, str)
+ writestr (strnsize ("======= Backtrace: =========\n"));
+ __backtrace_symbols_fd (addrs + 1, n - 1, fd);
+
+ writestr (strnsize ("======= Memory map: ========\n"));
+ int fd2 = open_not_cancel_2 ("/proc/self/maps", O_RDONLY);
+ char buf[1024];
+ ssize_t n2;
+ while ((n2 = read_not_cancel (fd2, buf, sizeof (buf))) > 0)
+ if (write_not_cancel (fd, buf, n2) != n2)
+ break;
+ close_not_cancel_no_status (fd2);
+ }
+ }
+
+ /* Terminate the process. */
+ abort ();
+ }
}