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Diffstat (limited to 'lib/msan/lit_tests/sigwait.cc')
-rw-r--r-- | lib/msan/lit_tests/sigwait.cc | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/msan/lit_tests/sigwait.cc b/lib/msan/lit_tests/sigwait.cc new file mode 100644 index 000000000000..29aa86c938f2 --- /dev/null +++ b/lib/msan/lit_tests/sigwait.cc @@ -0,0 +1,30 @@ +// RUN: %clangxx_msan -std=c++11 -O0 -g %s -o %t && %t + +#include <assert.h> +#include <sanitizer/msan_interface.h> +#include <signal.h> +#include <sys/time.h> +#include <unistd.h> + +void test_sigwait() { + sigset_t s; + sigemptyset(&s); + sigaddset(&s, SIGUSR1); + sigprocmask(SIG_BLOCK, &s, 0); + + if (pid_t pid = fork()) { + kill(pid, SIGUSR1); + _exit(0); + } else { + int sig; + int res = sigwait(&s, &sig); + assert(!res); + // The following checks that sig is initialized. + assert(sig == SIGUSR1); + } +} + +int main(void) { + test_sigwait(); + return 0; +} |