#include "llvm/Support/ManagedStatic.h"
#include "llvm/Config/config.h"
#include "llvm/Support/Atomic.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Mutex.h"
#include "llvm/Support/MutexGuard.h"
#include <cassert>
using namespace llvm;
static const ManagedStaticBase *StaticList = nullptr;
+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;
+ return ManagedStaticMutex;
+}
+
void ManagedStaticBase::RegisterManagedStatic(void *(*Creator)(),
void (*Deleter)(void*)) const {
assert(Creator);
if (llvm_is_multithreaded()) {
- llvm::MutexGuard Lock(llvm_get_global_lock());
+ MutexGuard Lock(getManagedStaticMutex());
if (!Ptr) {
void* tmp = Creator();
/// llvm_shutdown - Deallocate and destroy all ManagedStatic variables.
void llvm::llvm_shutdown() {
+ MutexGuard Lock(getManagedStaticMutex());
+
while (StaticList)
StaticList->destroy();
}