diff options
Diffstat (limited to 'absl/debugging/failure_signal_handler.cc')
| -rw-r--r-- | absl/debugging/failure_signal_handler.cc | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/absl/debugging/failure_signal_handler.cc b/absl/debugging/failure_signal_handler.cc index b2035148..a3a36f64 100644 --- a/absl/debugging/failure_signal_handler.cc +++ b/absl/debugging/failure_signal_handler.cc @@ -47,7 +47,7 @@ #endif namespace absl { -inline namespace lts_2018_06_20 { +inline namespace lts_2018_12_18 { ABSL_CONST_INIT static FailureSignalHandlerOptions fsh_options; @@ -120,7 +120,11 @@ const char* FailureSignalToString(int signo) { #ifndef _WIN32 static bool SetupAlternateStackOnce() { +#if defined(__wasm__) || defined (__asjms__) const size_t page_mask = getpagesize() - 1; +#else + const size_t page_mask = sysconf(_SC_PAGESIZE) - 1; +#endif size_t stack_size = (std::max(SIGSTKSZ, 65536) + page_mask) & ~page_mask; #if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \ defined(THREAD_SANITIZER) @@ -253,7 +257,7 @@ ABSL_ATTRIBUTE_NOINLINE static void WriteStackTrace( depth, min_dropped_frames, symbolize_stacktrace, writerfn, writerfn_arg); } -// Called by FailureSignalHandler() to write the failure info. It is +// Called by AbslFailureSignalHandler() to write the failure info. It is // called once with writerfn set to WriteToStderr() and then possibly // with writerfn set to the user provided function. static void WriteFailureInfo(int signo, void* ucontext, @@ -279,9 +283,9 @@ static void PortableSleepForSeconds(int seconds) { } #ifdef ABSL_HAVE_ALARM -// FailureSignalHandler() installs this as a signal handler for +// AbslFailureSignalHandler() installs this as a signal handler for // SIGALRM, then sets an alarm to be delivered to the program after a -// set amount of time. If FailureSignalHandler() hangs for more than +// set amount of time. If AbslFailureSignalHandler() hangs for more than // the alarm timeout, ImmediateAbortSignalHandler() will abort the // program. static void ImmediateAbortSignalHandler(int) { @@ -295,11 +299,10 @@ using GetTidType = decltype(absl::base_internal::GetTID()); ABSL_CONST_INIT static std::atomic<GetTidType> failed_tid(0); #ifndef ABSL_HAVE_SIGACTION -static void FailureSignalHandler(int signo) { +static void AbslFailureSignalHandler(int signo) { void* ucontext = nullptr; #else -static void FailureSignalHandler(int signo, siginfo_t*, - void* ucontext) { +static void AbslFailureSignalHandler(int signo, siginfo_t*, void* ucontext) { #endif const GetTidType this_tid = absl::base_internal::GetTID(); @@ -309,10 +312,10 @@ static void FailureSignalHandler(int signo, siginfo_t*, std::memory_order_acq_rel, std::memory_order_relaxed)) { ABSL_RAW_LOG( ERROR, - "Signal %d raised at PC=%p while already in FailureSignalHandler()", + "Signal %d raised at PC=%p while already in AbslFailureSignalHandler()", signo, absl::debugging_internal::GetProgramCounter(ucontext)); if (this_tid != previous_failed_tid) { - // Another thread is already in FailureSignalHandler(), so wait + // Another thread is already in AbslFailureSignalHandler(), so wait // a bit for it to finish. If the other thread doesn't kill us, // we do so after sleeping. PortableSleepForSeconds(3); @@ -350,9 +353,9 @@ static void FailureSignalHandler(int signo, siginfo_t*, void InstallFailureSignalHandler(const FailureSignalHandlerOptions& options) { fsh_options = options; for (auto& it : failure_signal_data) { - InstallOneFailureHandler(&it, FailureSignalHandler); + InstallOneFailureHandler(&it, AbslFailureSignalHandler); } } -} // inline namespace lts_2018_06_20 +} // inline namespace lts_2018_12_18 } // namespace absl |