31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
#include <stdint.h>
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#ifdef __i386__
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# define STACK_CHK_GUARD \
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({ uintptr_t x; asm ("movl %%gs:0x14, %0" : "=r" (x)); x; })
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#elif defined __x86_64__
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# define STACK_CHK_GUARD \
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({ uintptr_t x; asm ("movq %%fs:0x28, %0" : "=r" (x)); x; })
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#elif defined __powerpc64__
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# define STACK_CHK_GUARD \
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({ uintptr_t x; asm ("ld %0,-28688(13)" : "=r" (x)); x; })
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#elif defined __powerpc__
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# define STACK_CHK_GUARD \
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({ uintptr_t x; asm ("lwz %0,-28680(2)" : "=r" (x)); x; })
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#elif defined __sparc__ && defined __arch64__
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# define STACK_CHK_GUARD \
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({ uintptr_t x; asm ("ldx [%%g7+0x28], %0" : "=r" (x)); x; })
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#elif defined __sparc__
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# define STACK_CHK_GUARD \
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({ uintptr_t x; asm ("ld [%%g7+0x14], %0" : "=r" (x)); x; })
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#elif defined __s390x__
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# define STACK_CHK_GUARD \
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({ uintptr_t x; asm ("ear %0,%%a0; sllg %0,%0,32; ear %0,%%a1; lg %0,0x28(%0)" : "=a" (x)); x; })
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#elif defined __s390__
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# define STACK_CHK_GUARD \
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({ uintptr_t x; asm ("ear %0,%%a0; l %0,0x14(%0)" : "=a" (x)); x; })
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#elif !defined STACK_CHK_GUARD
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extern uintptr_t __stack_chk_guard;
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# define STACK_CHK_GUARD __stack_chk_guard
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#endif
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