static Mutex* limit_mutex = NULL;
-void OS::SetUp() {
- // Seed the random number generator. We preserve microsecond resolution.
- uint64_t seed = Ticks() ^ (getpid() << 16);
- srandom(static_cast<unsigned int>(seed));
- limit_mutex = CreateMutex();
-
-#ifdef __arm__
- // When running on ARM hardware check that the EABI used by V8 and
- // by the C code is the same.
- bool hard_float = OS::ArmUsingHardFloat();
- if (hard_float) {
-#if !USE_EABI_HARDFLOAT
- PrintF("ERROR: Binary compiled with -mfloat-abi=hard but without "
- "-DUSE_EABI_HARDFLOAT\n");
- exit(1);
-#endif
- } else {
-#if USE_EABI_HARDFLOAT
- PrintF("ERROR: Binary not compiled with -mfloat-abi=hard but with "
- "-DUSE_EABI_HARDFLOAT\n");
- exit(1);
-#endif
- }
-#endif
-}
-
-
void OS::PostSetUp() {
POSIXPostSetUp();
}
vm_tgid_(getpid()),
interval_(interval) {}
+ static void SetUp() { if (!mutex_) mutex_ = OS::CreateMutex(); }
+ static void TearDown() { delete mutex_; }
+
static void InstallSignalHandler() {
struct sigaction sa;
sa.sa_sigaction = ProfilerSignalHandler;
};
-Mutex* SignalSender::mutex_ = OS::CreateMutex();
+Mutex* SignalSender::mutex_ = NULL;
SignalSender* SignalSender::instance_ = NULL;
struct sigaction SignalSender::old_signal_handler_;
bool SignalSender::signal_handler_installed_ = false;
+void OS::SetUp() {
+ // Seed the random number generator. We preserve microsecond resolution.
+ uint64_t seed = Ticks() ^ (getpid() << 16);
+ srandom(static_cast<unsigned int>(seed));
+ limit_mutex = CreateMutex();
+
+#ifdef __arm__
+ // When running on ARM hardware check that the EABI used by V8 and
+ // by the C code is the same.
+ bool hard_float = OS::ArmUsingHardFloat();
+ if (hard_float) {
+#if !USE_EABI_HARDFLOAT
+ PrintF("ERROR: Binary compiled with -mfloat-abi=hard but without "
+ "-DUSE_EABI_HARDFLOAT\n");
+ exit(1);
+#endif
+ } else {
+#if USE_EABI_HARDFLOAT
+ PrintF("ERROR: Binary not compiled with -mfloat-abi=hard but with "
+ "-DUSE_EABI_HARDFLOAT\n");
+ exit(1);
+#endif
+ }
+#endif
+}
+
+
+void OS::TearDown() {
+ SignalSender::TearDown();
+ delete limit_mutex;
+}
+
+
Sampler::Sampler(Isolate* isolate, int interval)
: isolate_(isolate),
interval_(interval),