#if LLVM_SUPPORT_XCODE_SIGNPOSTS
#include "llvm/ADT/DenseMap.h"
#include "llvm/Support/Mutex.h"
+#include <Availability.h>
#include <os/signpost.h>
#endif // if LLVM_SUPPORT_XCODE_SIGNPOSTS
using namespace llvm;
#if LLVM_SUPPORT_XCODE_SIGNPOSTS
+#define SIGNPOSTS_AVAILABLE() \
+ __builtin_available(macos 10.14, iOS 12, tvOS 12, watchOS 5, *)
namespace {
os_log_t *LogCreator() {
os_log_t *X = new os_log_t;
const auto &I = Signposts.find(O);
if (I != Signposts.end())
return I->second;
-
- const auto &Inserted = Signposts.insert(
- std::make_pair(O, os_signpost_id_make_with_pointer(getLogger(), O)));
+ os_signpost_id_t ID = {};
+ if (SIGNPOSTS_AVAILABLE()) {
+ ID = os_signpost_id_make_with_pointer(getLogger(), O);
+ }
+ const auto &Inserted = Signposts.insert(std::make_pair(O, ID));
return Inserted.first->second;
}
public:
SignpostEmitterImpl() : SignpostLog(LogCreator(), LogDeleter), Signposts() {}
- bool isEnabled() const { return os_signpost_enabled(*SignpostLog); }
+ bool isEnabled() const {
+ if (SIGNPOSTS_AVAILABLE())
+ return os_signpost_enabled(*SignpostLog);
+ return false;
+ }
void startInterval(const void *O, llvm::StringRef Name) {
if (isEnabled()) {
- // Both strings used here are required to be constant literal strings.
- os_signpost_interval_begin(getLogger(), getSignpostForObject(O),
- "LLVM Timers", "Begin %s", Name.data());
+ if (SIGNPOSTS_AVAILABLE()) {
+ // Both strings used here are required to be constant literal strings.
+ os_signpost_interval_begin(getLogger(), getSignpostForObject(O),
+ "LLVM Timers", "Begin %s", Name.data());
+ }
}
}
void endInterval(const void *O, llvm::StringRef Name) {
if (isEnabled()) {
- // Both strings used here are required to be constant literal strings.
- os_signpost_interval_end(getLogger(), getSignpostForObject(O),
- "LLVM Timers", "End %s", Name.data());
+ if (SIGNPOSTS_AVAILABLE()) {
+ // Both strings used here are required to be constant literal strings.
+ os_signpost_interval_end(getLogger(), getSignpostForObject(O),
+ "LLVM Timers", "End %s", Name.data());
+ }
}
}
};