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42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/* Copyright (C) 2009 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <sysdep.h>
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#include <setjmp.h>
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#include <bits/setjmp.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#define __longjmp ____longjmp_chk
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#define CHECK_SP(env, guard) \
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do \
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{ \
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uintptr_t cur_sp; \
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uintptr_t new_sp = env->__gregs[9]; \
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__asm ("lgr %0, %%r15" : "=r" (cur_sp)); \
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new_sp ^= guard; \
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if (new_sp < cur_sp) \
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__fortify_fail ("longjmp causes uninitialized stack frame"); \
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} while (0)
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#include "__longjmp.c"
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