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69 lines
1.3 KiB
69 lines
1.3 KiB
/*
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* Copyright 2002-2019 Intel Corporation.
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*
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* This software is provided to you as Sample Source Code as defined in the accompanying
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* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
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* section 1.L.
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*
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* This software and the related documents are provided as is, with no express or implied
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* warranties, other than those that are expressly stated in the License.
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*/
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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void handle(int, siginfo_t*, void*);
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void make_segv();
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size_t getpagesize();
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int main()
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{
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struct sigaction sigact;
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sigact.sa_sigaction = handle;
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sigemptyset(&sigact.sa_mask);
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sigact.sa_flags = SA_SIGINFO;
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if (sigaction(SIGSEGV, &sigact, 0) == -1)
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{
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fprintf(stderr, "Unable handle signal\n");
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return 1;
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}
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make_segv();
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return 0;
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}
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void handle(int sig, siginfo_t* info, void* vctxt)
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{
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printf("Got signal %d\n", sig);
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exit(0);
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}
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#if defined(TARGET_MAC)
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// Make segv by taking an address on the stack and go page by page
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// until reaching an unmapped page.
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void make_segv()
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{
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size_t pagesize = getpagesize();
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int i = 0;
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volatile int * p = &i;
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while(1)
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{
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p += pagesize;
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i += *p;
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}
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}
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#else
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void make_segv()
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{
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volatile int * p;
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int i;
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p = (volatile int *)0x9;
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i = *p;
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}
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#endif
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