61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2014, 2015.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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ssp/__stack_chk_fail.c
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Abnormally terminate the process on stack smashing.
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*******************************************************************************/
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#include <errno.h>
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#include <fcntl.h>
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#include <scram.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <__/wordsize.h>
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#ifdef __is_sortix_libk
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#include <libk.h>
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#endif
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#if __WORDSIZE == 32
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#define STACK_CHK_GUARD 0x01234567
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#elif __WORDSIZE == 64
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#define STACK_CHK_GUARD 0x0123456789ABCDEF
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#endif
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#ifdef __is_sortix_libk
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/* TODO: Have this filled in by the program loader. */
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#else
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/* TODO: Have this filled in by the boot loader. */
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#endif
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uintptr_t __stack_chk_guard = STACK_CHK_GUARD;
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__attribute__((noreturn))
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void __stack_chk_fail(void)
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{
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#ifdef __is_sortix_libk
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libk_stack_chk_fail();
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#else
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scram(SCRAM_STACK_SMASH, NULL);
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#endif
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}
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