diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/libc_fatal.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/libc_fatal.c | 32 |
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 (); + } } |