forked from OSchip/llvm-project
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
// RUN: %clangxx_msan -std=c++11 -O0 -g %s -o %t
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// RUN: %run %t __
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// RUN: not %run %t A_ 2>&1 | FileCheck %s
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// RUN: not %run %t AH 2>&1 | FileCheck %s
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// RUN: not %run %t B_ 2>&1 | FileCheck %s
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// RUN: not %run %t BH 2>&1 | FileCheck %s
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// RUN: not %run %t C_ 2>&1 | FileCheck %s
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// RUN: not %run %t CH 2>&1 | FileCheck %s
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#include <assert.h>
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#include <signal.h>
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#include <string.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <sanitizer/msan_interface.h>
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void handler(int) {}
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void action(int, siginfo_t *, void *) {}
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int main(int argc, char **argv) {
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char T = argv[1][0];
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char H = argv[1][1];
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struct sigaction sa;
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memset(&sa, 0, sizeof(sa));
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if (H == 'H') {
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sa.sa_handler = handler;
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} else {
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sa.sa_sigaction = action;
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sa.sa_flags = SA_SIGINFO;
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}
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if (T == 'A') {
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if (H == 'H')
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__msan_poison(&sa.sa_handler, sizeof(sa.sa_handler));
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else
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__msan_poison(&sa.sa_sigaction, sizeof(sa.sa_sigaction));
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}
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if (T == 'B')
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__msan_poison(&sa.sa_flags, sizeof(sa.sa_flags));
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if (T == 'C')
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__msan_poison(&sa.sa_mask, sizeof(sa.sa_mask));
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// CHECK: use-of-uninitialized-value
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int res = sigaction(SIGUSR1, &sa, nullptr);
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assert(res == 0);
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return 0;
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}
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