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[libfuzzer] use timer_create() instead of setitimer() for linux #110274

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Merged
fmayer merged 6 commits into from
Nov 12, 2024
Merged

[libfuzzer] use timer_create() instead of setitimer() for linux #110274

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c229365
[libfuzzer] use timer_create() instead of setitimer() for linux
minxuanz Sep 27, 2024
001d59b
move SetSigaction above timer_settime
minxuanz Nov 9, 2024
cca60bb
fix format
minxuanz Nov 9, 2024
4e9f306
use nullptr
minxuanz Nov 11, 2024
06ed01d
fix format
minxuanz Nov 11, 2024
133a593
fix format
minxuanz Nov 12, 2024
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13 changes: 9 additions & 4 deletions compiler-rt/lib/fuzzer/FuzzerUtilPosix.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -104,14 +104,19 @@ bool ExecuteCommand(const Command &Cmd, std::string *CmdOutput) {
}

void SetTimer(int Seconds) {
struct itimerval T {
timer_t TimerId;
struct itimerspec T {
{Seconds, 0}, { Seconds, 0 }
};
if (setitimer(ITIMER_REAL, &T, nullptr)) {
Printf("libFuzzer: setitimer failed with %d\n", errno);
SetSigaction(SIGALRM, AlarmHandler);
if (timer_create(CLOCK_REALTIME, nullptr, &TimerId) == -1) {
Printf("libFuzzer: timer_create failed with %d\n", errno);
exit(1);
}
if (timer_settime(TimerId, 0, &T, nullptr) == -1) {
Printf("libFuzzer: timer_settime failed with %d\n", errno);
exit(1);
}
SetSigaction(SIGALRM, AlarmHandler);
}

void SetSignalHandler(const FuzzingOptions& Options) {
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