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58 lines
1.5 KiB
58 lines
1.5 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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/*
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* This test verifies that Pin knows the correct size of the signal
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* mask passed to the old-style signal system calls. These system calls
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* take a 4-byte signal mask, which is shorter than the mask accepted
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* by the modern system calls.
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*
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* Note, we must use syscall() here because libc does not use these
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* old-style system calls any more.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <signal.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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int main()
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{
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char mask1[8];
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char mask2[8];
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memset(mask1, 0, sizeof(mask1));
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memset(mask2, 0, sizeof(mask2));
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#ifdef SYS_sigprocmask
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syscall(SYS_sigprocmask, SIG_SETMASK, 0, mask1);
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#endif
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if (memcmp(mask1+4, mask2+4, sizeof(mask1)-4) != 0)
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{
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printf("SYS_sigprocmask wrote beyond end of signal mask\n");
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return 1;
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}
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memset(mask1, 0xff, sizeof(mask1));
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memset(mask2, 0xff, sizeof(mask2));
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#ifdef SYS_sigprocmask
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syscall(SYS_sigprocmask, SIG_SETMASK, 0, mask1);
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#endif
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if (memcmp(mask1+4, mask2+4, sizeof(mask1)-4) != 0)
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{
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printf("SYS_sigprocmask wrote beyond end of signal mask\n");
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return 1;
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}
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return 0;
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}
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