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* sysdeps/unix/sysv/linux/libc_fatal.c: Print backtrace and memory

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map if requested.
	* debug/chk_fail.c: Request backtrace and memory map dump.

	* Versions.def: Add GLIBC_2.4 for libc.
	* debug/fgets_chk.c: New file.
	* debug/fgets_u_chk.c: New file.
	* debug/getcwd_chk.c: New file.
	* debug/getwd_chk.c: New file.
	* debug/readlink_chk.c: New file.
	* debug/read_chk.c: New file.
	* debug/pread_chk.c: New file.
	* debug/pread64_chk.c: New file.
	* debug/recv_chk.c: New file.
	* debug/recvfrom_chk.c: New file.
	* debug/Versions: Add all new functions with version GLIBC_2.4.
	* debug/Makefile (routines): Add fgets_chk, fgets_u_chk, read_chk,
	pread_chk, pread64_chk, recv_chk, recvfrom_chk, readlink_chk,
	getwd_chk, and getcwd_chk.  Plus appropriate CFLAGS definitions.
	* debug/tst-chk1.c: Add more tests.
	* libio/bits/stdio2.h: Add macros for fgets and fgets_unlocked.
	* include/stdio.h: Declare __fgets_chk and __fgets_unlocked_chk.
	* posix/unistd.h: Include <bits/unistd.h> for fortification.
	* posix/bits/unistd.h: New file.
	* posix/Makefile (headers): Add bits/unistd.h.
	* socket/sys/socket.h: Include <bits/socket2.h> for fortification.
	* socket/bits/socket2.h: New file.
	* socket/Makefile (headers): Add bits/socket2.h.

	* string/bits/string3.h: Extend memset macro to check for zero 3rd
	parameter and use __memset_zero_constant_len_parameter in that case.
	* sysdeps/generic/memset_chk.c: Add
	__memset_zero_constant_len_parameter alias and linker warning.
	* debug/Versions: Add __memset_zero_constant_len_parameter to libc
	with version GLIBC_2.4.

	* sysdeps/generic/bits/types.h: Don't unnecessarily use __extension__
	in __STD_TYPE definition.

2005-02-21  Jakub Jelinek  <jakub@redhat.com>

	* malloc/malloc.c (malloc_printerr): If MALLOC_CHECK_={5,7}, print
	the error message rather than program name.

2005-02-21  Ulrich Drepper  <drepper@redhat.com>
This commit is contained in:
Ulrich Drepper
2005-02-21 23:14:10 +00:00
parent 53360aa172
commit 553cc5f9ad
34 changed files with 789 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
sysdeps/unix/sysv/linux/libc_fatal.c
View File

@ -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
@ -141,8 +141,32 @@ __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)
write (fd, strnsize ("======= Backtrace: =========\n"));
__backtrace_symbols_fd (addrs + 1, n - 1, fd);
write (fd, strnsize ("======= Memory map: ========\n"));
int fd2 = open ("/proc/self/maps", O_RDONLY);
char buf[1024];
ssize_t n2;
while ((n2 = read (fd2, buf, sizeof (buf))) > 0)
if (write (fd, buf, n2) != n2)
break;
close (fd2);
}
}
/* Terminate the process. */
abort ();
}
}