[Lldb-commits] [lldb] b90f9be - Revert "Allow signposts to take advantage of deferred string substitution"
Adrian Prantl via lldb-commits
lldb-commits at lists.llvm.org
Fri Jun 11 16:46:46 PDT 2021
Author: Adrian Prantl
Date: 2021-06-11T16:46:34-07:00
New Revision: b90f9bea9673d07f2764006eb15fc4ea5e23be6d
URL: https://github.com/llvm/llvm-project/commit/b90f9bea9673d07f2764006eb15fc4ea5e23be6d
DIFF: https://github.com/llvm/llvm-project/commit/b90f9bea9673d07f2764006eb15fc4ea5e23be6d.diff
LOG: Revert "Allow signposts to take advantage of deferred string substitution"
I forgot to make the LLDB macro conditional on Linux.
This reverts commit 541ccd1c1bb23e1e20a382844b35312c0caffd79.
Added:
Modified:
lldb/include/lldb/Utility/Timer.h
lldb/source/Utility/Timer.cpp
llvm/include/llvm/Support/Signposts.h
llvm/lib/Support/Signposts.cpp
llvm/lib/Support/Timer.cpp
Removed:
################################################################################
diff --git a/lldb/include/lldb/Utility/Timer.h b/lldb/include/lldb/Utility/Timer.h
index 1e47ac7afc82..2b39881de89e 100644
--- a/lldb/include/lldb/Utility/Timer.h
+++ b/lldb/include/lldb/Utility/Timer.h
@@ -10,16 +10,10 @@
#define LLDB_UTILITY_TIMER_H
#include "lldb/lldb-defines.h"
-#include "llvm/ADT/ScopeExit.h"
#include "llvm/Support/Chrono.h"
-#include "llvm/Support/Signposts.h"
#include <atomic>
#include <cstdint>
-namespace llvm {
- class SignpostEmitter;
-}
-
namespace lldb_private {
class Stream;
@@ -78,28 +72,15 @@ class Timer {
const Timer &operator=(const Timer &) = delete;
};
-llvm::SignpostEmitter &GetSignposts();
-
} // namespace lldb_private
// Use a format string because LLVM_PRETTY_FUNCTION might not be a string
// literal.
#define LLDB_SCOPED_TIMER() \
static ::lldb_private::Timer::Category _cat(LLVM_PRETTY_FUNCTION); \
- ::lldb_private::Timer _scoped_timer(_cat, "%s", LLVM_PRETTY_FUNCTION); \
- SIGNPOST_EMITTER_START_INTERVAL(::lldb_private::GetSignposts(), \
- &_scoped_timer, "%s", LLVM_PRETTY_FUNCTION); \
- auto _scoped_signpost = llvm::make_scope_exit([&_scoped_timer]() { \
- ::lldb_private::GetSignposts().endInterval(&_scoped_timer); \
- })
-
-#define LLDB_SCOPED_TIMERF(FMT, ...) \
+ ::lldb_private::Timer _scoped_timer(_cat, "%s", LLVM_PRETTY_FUNCTION)
+#define LLDB_SCOPED_TIMERF(...) \
static ::lldb_private::Timer::Category _cat(LLVM_PRETTY_FUNCTION); \
- ::lldb_private::Timer _scoped_timer(_cat, FMT, __VA_ARGS__); \
- SIGNPOST_EMITTER_START_INTERVAL(::lldb_private::GetSignposts(), \
- &_scoped_timer, FMT, __VA_ARGS__); \
- auto _scoped_signpost = llvm::make_scope_exit([&_scoped_timer]() { \
- ::lldb_private::GetSignposts().endInterval(&_scoped_timer); \
- })
+ ::lldb_private::Timer _scoped_timer(_cat, __VA_ARGS__)
#endif // LLDB_UTILITY_TIMER_H
diff --git a/lldb/source/Utility/Timer.cpp b/lldb/source/Utility/Timer.cpp
index b59ce3b9f556..2f3afe4c8703 100644
--- a/lldb/source/Utility/Timer.cpp
+++ b/lldb/source/Utility/Timer.cpp
@@ -33,8 +33,6 @@ static std::atomic<Timer::Category *> g_categories;
/// Allows llvm::Timer to emit signposts when supported.
static llvm::ManagedStatic<llvm::SignpostEmitter> Signposts;
-llvm::SignpostEmitter &lldb_private::GetSignposts() { return *Signposts; }
-
std::atomic<bool> Timer::g_quiet(true);
std::atomic<unsigned> Timer::g_display_depth(0);
static std::mutex &GetFileMutex() {
@@ -61,6 +59,7 @@ void Timer::SetQuiet(bool value) { g_quiet = value; }
Timer::Timer(Timer::Category &category, const char *format, ...)
: m_category(category), m_total_start(std::chrono::steady_clock::now()) {
+ Signposts->startInterval(this, m_category.GetName());
TimerStack &stack = GetTimerStackForCurrentThread();
stack.push_back(this);
@@ -87,6 +86,8 @@ Timer::~Timer() {
auto total_dur = stop_time - m_total_start;
auto timer_dur = total_dur - m_child_duration;
+ Signposts->endInterval(this, m_category.GetName());
+
TimerStack &stack = GetTimerStackForCurrentThread();
if (g_quiet && stack.size() <= g_display_depth) {
std::lock_guard<std::mutex> lock(GetFileMutex());
diff --git a/llvm/include/llvm/Support/Signposts.h b/llvm/include/llvm/Support/Signposts.h
index 66675313c083..d31f3c1e6eb5 100644
--- a/llvm/include/llvm/Support/Signposts.h
+++ b/llvm/include/llvm/Support/Signposts.h
@@ -18,17 +18,8 @@
#define LLVM_SUPPORT_SIGNPOSTS_H
#include "llvm/ADT/StringRef.h"
-#include "llvm/Config/config.h"
#include <memory>
-#if LLVM_SUPPORT_XCODE_SIGNPOSTS
-#include <Availability.h>
-#include <os/signpost.h>
-#endif
-
-#define SIGNPOSTS_AVAILABLE() \
- __builtin_available(macos 10.14, iOS 12, tvOS 12, watchOS 5, *)
-
namespace llvm {
class SignpostEmitterImpl;
@@ -45,27 +36,8 @@ class SignpostEmitter {
/// Begin a signposted interval for a given object.
void startInterval(const void *O, StringRef Name);
-
-#if LLVM_SUPPORT_XCODE_SIGNPOSTS
- os_log_t &getLogger() const;
- os_signpost_id_t getSignpostForObject(const void *O);
-#endif
-
- /// A macro to take advantage of the special format string handling
- /// in the os_signpost API. The format string substitution is
- /// deferred to the log consumer and done outside of the
- /// application.
-#define SIGNPOST_EMITTER_START_INTERVAL(SIGNPOST_EMITTER, O, ...) \
- do { \
- if ((SIGNPOST_EMITTER).isEnabled()) \
- if (SIGNPOSTS_AVAILABLE()) \
- os_signpost_interval_begin((SIGNPOST_EMITTER).getLogger(), \
- (SIGNPOST_EMITTER).getSignpostForObject(O), \
- "LLVM Timers", __VA_ARGS__); \
- } while (0)
-
/// End a signposted interval for a given object.
- void endInterval(const void *O);
+ void endInterval(const void *O, StringRef Name);
};
} // end namespace llvm
diff --git a/llvm/lib/Support/Signposts.cpp b/llvm/lib/Support/Signposts.cpp
index efa283c0ade5..7bf7b46c1047 100644
--- a/llvm/lib/Support/Signposts.cpp
+++ b/llvm/lib/Support/Signposts.cpp
@@ -10,14 +10,19 @@
#include "llvm/Support/Signposts.h"
#include "llvm/Support/Timer.h"
+#include "llvm/Config/config.h"
#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;
@@ -35,13 +40,13 @@ struct LogDeleter {
namespace llvm {
class SignpostEmitterImpl {
using LogPtrTy = std::unique_ptr<os_log_t, LogDeleter>;
+ using LogTy = LogPtrTy::element_type;
LogPtrTy SignpostLog;
DenseMap<const void *, os_signpost_id_t> Signposts;
sys::SmartMutex<true> Mutex;
-public:
- os_log_t &getLogger() const { return *SignpostLog; }
+ LogTy &getLogger() const { return *SignpostLog; }
os_signpost_id_t getSignpostForObject(const void *O) {
sys::SmartScopedLock<true> Lock(Mutex);
const auto &I = Signposts.find(O);
@@ -55,6 +60,7 @@ class SignpostEmitterImpl {
return Inserted.first->second;
}
+public:
SignpostEmitterImpl() : SignpostLog(LogCreator()) {}
bool isEnabled() const {
@@ -73,7 +79,7 @@ class SignpostEmitterImpl {
}
}
- void endInterval(const void *O) {
+ void endInterval(const void *O, llvm::StringRef Name) {
if (isEnabled()) {
if (SIGNPOSTS_AVAILABLE()) {
// Both strings used here are required to be constant literal strings.
@@ -119,17 +125,10 @@ void SignpostEmitter::startInterval(const void *O, StringRef Name) {
#endif // if !HAVE_ANY_SIGNPOST_IMPL
}
-#if HAVE_ANY_SIGNPOST_IMPL
-os_log_t &SignpostEmitter::getLogger() const { return Impl->getLogger(); }
-os_signpost_id_t SignpostEmitter::getSignpostForObject(const void *O) {
- return Impl->getSignpostForObject(O);
-}
-#endif
-
-void SignpostEmitter::endInterval(const void *O) {
+void SignpostEmitter::endInterval(const void *O, StringRef Name) {
#if HAVE_ANY_SIGNPOST_IMPL
if (Impl == nullptr)
return;
- Impl->endInterval(O);
+ Impl->endInterval(O, Name);
#endif // if !HAVE_ANY_SIGNPOST_IMPL
}
diff --git a/llvm/lib/Support/Timer.cpp b/llvm/lib/Support/Timer.cpp
index 8d421db4f7b1..6e592dbc0ba1 100644
--- a/llvm/lib/Support/Timer.cpp
+++ b/llvm/lib/Support/Timer.cpp
@@ -174,7 +174,7 @@ void Timer::stopTimer() {
Running = false;
Time += TimeRecord::getCurrentTime(false);
Time -= StartTime;
- Signposts->endInterval(this);
+ Signposts->endInterval(this, getName());
}
void Timer::clear() {
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