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[dfsan] Test IGN and DFL for sigaction 

Reviewed-by: morehouse

Differential Revision: https://reviews.llvm.org/D95957
This commit is contained in:
Jianzhou Zhao 2021-02-03 17:23:32 +00:00
parent bbb7555403
commit eb5c0a90e7
1 changed files with 14 additions and 1 deletions
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15
compiler-rt/test/dfsan/custom.cpp
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@ -847,10 +847,23 @@ void test_sigaction() {
struct sigaction oldact;
assert(0 == sigaction(SIGUSR1, &newact_with_sighandler, &oldact));
assert(oldact.sa_sigaction == SignalAction);
assert(oldact.sa_flags & SA_SIGINFO);
// Set SIG_IGN or SIG_DFL, and check the previous one is expected.
newact_with_sighandler.sa_handler = SIG_IGN;
assert(0 == sigaction(SIGUSR1, &newact_with_sighandler, &oldact));
assert(oldact.sa_handler == SignalHandler);
assert((oldact.sa_flags & SA_SIGINFO) == 0);
newact_with_sighandler.sa_handler = SIG_DFL;
assert(0 == sigaction(SIGUSR1, &newact_with_sighandler, &oldact));
assert(oldact.sa_handler == SIG_IGN);
assert((oldact.sa_flags & SA_SIGINFO) == 0);
// Restore sigaction to the orginal setting, check the last one is SignalHandler
assert(0 == sigaction(SIGUSR1, &origin_act, &oldact));
assert(oldact.sa_handler == SignalHandler);
assert(oldact.sa_handler == SIG_DFL);
assert((oldact.sa_flags & SA_SIGINFO) == 0);
}
void test_signal() {