mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-15 07:07:01 +00:00
39 lines
801 B
C
39 lines
801 B
C
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#include <malloc.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <signal.h>
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void maybe_fault ( int delta )
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{
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char* x = memalign(16/*alignment*/,32/*size*/);
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assert(x);
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assert(0 == ((16-1) & (unsigned long)x));
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memset(x, 0, 32);
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__asm__ __volatile__(
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"pabsb (%0),%%xmm7"
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: /*out*/ : /*in*/ "r"(x+delta) : /*trash*/"xmm7" );
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free(x);
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}
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void handler ( int signo )
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{
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assert(signo == SIGSEGV);
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fprintf(stderr, "three\n");
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exit(0);
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}
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int main ( void )
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{
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signal(SIGSEGV, handler);
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fprintf(stderr, "you should see: \"one\\ntwo\\nthree\\n\"\n");
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fprintf(stderr, "one\n");
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maybe_fault(0);
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fprintf(stderr, "two\n");
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maybe_fault(5);
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fprintf(stderr, "test failed! you shouldn't see this\n");
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return 0;
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}
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