#include "llvm/Support/Atomic.h"
#include "llvm/Support/Mutex.h"
#include "llvm/Support/MutexGuard.h"
+#include "llvm/Support/Threading.h"
#include <cassert>
using namespace llvm;
static const ManagedStaticBase *StaticList = nullptr;
+static sys::Mutex *ManagedStaticMutex = nullptr;
+LLVM_DEFINE_ONCE_FLAG(mutex_init_flag);
-static sys::Mutex& getManagedStaticMutex() {
+static void initializeMutex() {
+ ManagedStaticMutex = new sys::Mutex();
+}
+
+static sys::Mutex* getManagedStaticMutex() {
// We need to use a function local static here, since this can get called
// during a static constructor and we need to guarantee that it's initialized
// correctly.
- static sys::Mutex ManagedStaticMutex;
+ call_once(mutex_init_flag, initializeMutex);
return ManagedStaticMutex;
}
void (*Deleter)(void*)) const {
assert(Creator);
if (llvm_is_multithreaded()) {
- MutexGuard Lock(getManagedStaticMutex());
+ MutexGuard Lock(*getManagedStaticMutex());
if (!Ptr) {
void* tmp = Creator();
/// llvm_shutdown - Deallocate and destroy all ManagedStatic variables.
void llvm::llvm_shutdown() {
- MutexGuard Lock(getManagedStaticMutex());
+ MutexGuard Lock(*getManagedStaticMutex());
while (StaticList)
StaticList->destroy();