[Lldb-commits] [PATCH] D128321: [lldb] Add OSLog log handler

[Jonas Devlieghere via Phabricator via lldb-commits]

JDevlieghere created this revision.
JDevlieghere added reviewers: aprantl, labath, clayborg.
Herald added a project: All.
JDevlieghere requested review of this revision.

Add an OSLog log handler on macOS. These log messages end up in Console.app and will be part of a sysdiagnose.


https://reviews.llvm.org/D128321

Files:
  lldb/include/lldb/Utility/Log.h
  lldb/source/Utility/Log.cpp


Index: lldb/source/Utility/Log.cpp
===================================================================
--- lldb/source/Utility/Log.cpp
+++ lldb/source/Utility/Log.cpp
@@ -32,6 +32,12 @@
 #include <unistd.h>
 #endif
 
+#if defined(__APPLE__)
+#include <os/log.h>
+static os_log_t g_os_log;
+static std::once_flag g_os_log_once;
+#endif
+
 using namespace lldb_private;
 
 llvm::ManagedStatic<Log::ChannelMap> Log::g_channel_map;
@@ -389,3 +395,15 @@
   }
   stream.flush();
 }
+
+#if defined(__APPLE__)
+OSLogLogHandler::OSLogLogHandler() {
+  std::call_once(g_os_log_once, []() {
+    g_os_log = os_log_create("com.apple.dt.lldb", "lldb");
+  });
+}
+
+void OSLogLogHandler::Emit(llvm::StringRef message) {
+  os_log_with_type(g_os_log, OS_LOG_TYPE_DEFAULT, "%{public}s", message.data());
+}
+#endif
Index: lldb/include/lldb/Utility/Log.h
===================================================================
--- lldb/include/lldb/Utility/Log.h
+++ lldb/include/lldb/Utility/Log.h
@@ -96,6 +96,14 @@
   size_t m_total_count = 0;
 };
 
+#if defined(__APPLE__)
+class OSLogLogHandler : public LogHandler {
+public:
+  OSLogLogHandler();
+  void Emit(llvm::StringRef message) override;
+};
+#endif
+
 class Log final {
 public:
   /// The underlying type of all log channel enums. Declare them as:


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