From 35f1e82763326f196fd068e92343643d8ed54ee3 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sun, 26 Jun 2005 18:14:26 +0000 Subject: * Versions.def (ld): Add GLIBC_2.4. * configure.in: Add --enable-stackguard-randomization option. (ENABLE_STACKGUARD_RANDOMIZE): New define. * config.h.in (ENABLE_STACKGUARD_RANDOMIZE): Add. * sysdeps/unix/sysv/linux/dl-osinfo.h: Include stdint.h. (_dl_setup_stack_chk_guard): New inline function. * sysdeps/generic/dl-osinfo.h: Include stdint.h. (_dl_setup_stack_chk_guard): New inline function. * elf/rtld.c (__stack_chk_guard): New variable. (dl_main): Remove all traces of TLS_INIT_TP_EXPENSIVE. Set __stack_chk_guard to _dl_setup_stack_chk_guard (), use THREAD_SET_STACK_GUARD if defined. * elf/Versions (ld): Export __stack_chk_guard@@GLIBC_2.4. * sysdeps/generic/libc-start.c (__stack_chk_guard): New variable. (__libc_start_main): Set __stack_chk_guard to _dl_setup_stack_chk_guard (), use THREAD_SET_STACK_GUARD if defined. * sysdeps/generic/libc-tls.c (__libc_setup_tls): Remove all traces of TLS_INIT_TP_EXPENSIVE. * debug/Versions (libc): Export __stack_chk_fail@@GLIBC_2.4. * debug/Makefile (routines): Add stack_chk_fail. (static-only-routines): Add stack_chk_fail_local. * debug/stack_chk_fail_local.c: New file. * debug/stack_chk_fail.c: New file. * elf/Makefile: Add rules to build and run tst-stackguard1{,-static} tests. * elf/tst-stackguard1.c: New file. * elf/tst-stackguard1-static.c: New file. * elf/stackguard-macros.h: New file. --- debug/stack_chk_fail.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 debug/stack_chk_fail.c (limited to 'debug/stack_chk_fail.c') diff --git a/debug/stack_chk_fail.c b/debug/stack_chk_fail.c new file mode 100644 index 0000000000..298b323671 --- /dev/null +++ b/debug/stack_chk_fail.c @@ -0,0 +1,33 @@ +/* Copyright (C) 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include + + +extern char **__libc_argv attribute_hidden; + +void +__attribute__ ((noreturn)) +__stack_chk_fail (void) +{ + /* The loop is added only to keep gcc happy. */ + while (1) + __libc_message (1, "*** stack smashing detected ***: %s terminated\n", + __libc_argv[0] ?: ""); +} -- cgit v1.2.3