16 lines
424 B
C
16 lines
424 B
C
#include <stdint.h>
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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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/* On s390/s390x there is no unique pointer guard, instead we use the
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same value as the stack guard. */
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#define POINTER_CHK_GUARD \
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({ \
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uintptr_t x; \
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asm ("ear %0,%%a0; l %0,%1(%0)" \
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: "=a" (x) \
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: "i" (offsetof (tcbhead_t, stack_guard))); \
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x; \
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})
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