// Misc. API hooks.
//===----------------------------------------------------------------------===//
-static llvm::sys::Mutex LoggingMutex;
-static std::once_flag InstalledErrorHandlerFlag;
+static llvm::sys::Mutex EnableMultithreadingMutex;
+static bool EnabledMultithreading;
static void fatal_error_handler(void *user_data, const std::string& reason,
bool gen_crash_diag) {
if (!getenv("LIBCLANG_DISABLE_CRASH_RECOVERY"))
llvm::CrashRecoveryContext::Enable();
- std::call_once(InstalledErrorHandlerFlag,
- []() {llvm::install_fatal_error_handler(fatal_error_handler, nullptr);});
+ // Enable support for multithreading in LLVM.
+ {
+ llvm::sys::ScopedLock L(EnableMultithreadingMutex);
+ if (!EnabledMultithreading) {
+ llvm::install_fatal_error_handler(fatal_error_handler, nullptr);
+ llvm::llvm_start_multithreaded();
+ EnabledMultithreading = true;
+ }
+ }
CIndexer *CIdxr = new CIndexer();
if (excludeDeclarationsFromPCH)
cxindex::Logger::~Logger() {
LogOS.flush();
- llvm::sys::ScopedLock L(LoggingMutex);
+ llvm::sys::ScopedLock L(EnableMultithreadingMutex);
static llvm::TimeRecord sBeginTR = llvm::TimeRecord::getCurrentTime();