| 1 | // RUN: %clangxx_msan -O0 -g %s -o %t |
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| 2 | // RUN: env MSAN_OPTIONS=handle_segv=2 %t 2>&1 | FileCheck %s |
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| 3 | #include <stdlib.h> |
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| 4 | #include <stdio.h> |
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| 5 | #include <unistd.h> |
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| 6 | #include <signal.h> |
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| 7 | #include <string.h> |
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| 8 | |
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| 9 | extern "C" int __interceptor_sigaction(int signum, const struct sigaction *act, struct sigaction *oldact); |
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| 10 | extern "C" int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact) { |
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| 11 | write(fd: 2, buf: "sigaction call\n" , n: sizeof("sigaction call\n" ) - 1); |
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| 12 | return __interceptor_sigaction(signum, act, oldact); |
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| 13 | } |
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| 14 | |
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| 15 | int main() { |
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| 16 | struct sigaction oldact; |
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| 17 | sigaction(SIGSEGV, act: nullptr, oldact: &oldact); |
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| 18 | |
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| 19 | if (oldact.sa_handler || oldact.sa_sigaction) { |
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| 20 | fprintf(stderr, format: "oldact filled\n" ); |
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| 21 | } |
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| 22 | return 0; |
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| 23 | // CHECK: sigaction call |
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| 24 | // CHECK: oldact filled |
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| 25 | } |
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| 26 | |
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