[Lldb-commits] [lldb] r295450 - Switch ProcessKDPLog to the new channel registration mechanism

Pavel Labath via lldb-commits lldb-commits at lists.llvm.org
Fri Feb 17 07:08:09 PST 2017


Author: labath
Date: Fri Feb 17 09:08:08 2017
New Revision: 295450

URL: http://llvm.org/viewvc/llvm-project?rev=295450&view=rev
Log:
Switch ProcessKDPLog to the new channel registration mechanism

Modified:
    lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
    lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.cpp
    lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.h
    lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ThreadKDP.cpp

Modified: lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp?rev=295450&r1=295449&r2=295450&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp (original)
+++ lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp Fri Feb 17 09:08:08 2017
@@ -726,11 +726,7 @@ void ProcessKDP::Initialize() {
                                   GetPluginDescriptionStatic(), CreateInstance,
                                   DebuggerInitialize);
 
-    Log::Callbacks log_callbacks = {ProcessKDPLog::DisableLog,
-                                    ProcessKDPLog::EnableLog,
-                                    ProcessKDPLog::ListLogCategories};
-
-    Log::RegisterLogChannel(ProcessKDP::GetPluginNameStatic(), log_callbacks);
+    ProcessKDPLog::Initialize();
   });
 }
 

Modified: lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.cpp?rev=295450&r1=295449&r2=295450&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.cpp (original)
+++ lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.cpp Fri Feb 17 09:08:08 2017
@@ -9,181 +9,28 @@
 
 #include "ProcessKDPLog.h"
 
-#include "lldb/Core/StreamFile.h"
-#include "lldb/Interpreter/Args.h"
-
-#include "ProcessKDP.h"
-
 using namespace lldb;
 using namespace lldb_private;
 
-// We want to avoid global constructors where code needs to be run so here we
-// control access to our static g_log_sp by hiding it in a singleton function
-// that will construct the static g_log_sp the first time this function is
-// called.
-static bool g_log_enabled = false;
-static Log *g_log = NULL;
-static Log *GetLog() {
-  if (!g_log_enabled)
-    return NULL;
-  return g_log;
-}
-
-Log *ProcessKDPLog::GetLogIfAllCategoriesSet(uint32_t mask) {
-  Log *log(GetLog());
-  if (log && mask) {
-    uint32_t log_mask = log->GetMask().Get();
-    if ((log_mask & mask) != mask)
-      return NULL;
-  }
-  return log;
-}
-
-void ProcessKDPLog::DisableLog(const char **categories, Stream *feedback_strm) {
-  Log *log(GetLog());
-  if (log) {
-    uint32_t flag_bits = 0;
-
-    if (categories[0] != NULL) {
-      flag_bits = log->GetMask().Get();
-      for (size_t i = 0; categories[i] != NULL; ++i) {
-        const char *arg = categories[i];
-
-        if (::strcasecmp(arg, "all") == 0)
-          flag_bits &= ~KDP_LOG_ALL;
-        else if (::strcasecmp(arg, "async") == 0)
-          flag_bits &= ~KDP_LOG_ASYNC;
-        else if (::strncasecmp(arg, "break", 5) == 0)
-          flag_bits &= ~KDP_LOG_BREAKPOINTS;
-        else if (::strncasecmp(arg, "comm", 4) == 0)
-          flag_bits &= ~KDP_LOG_COMM;
-        else if (::strcasecmp(arg, "default") == 0)
-          flag_bits &= ~KDP_LOG_DEFAULT;
-        else if (::strcasecmp(arg, "packets") == 0)
-          flag_bits &= ~KDP_LOG_PACKETS;
-        else if (::strcasecmp(arg, "memory") == 0)
-          flag_bits &= ~KDP_LOG_MEMORY;
-        else if (::strcasecmp(arg, "data-short") == 0)
-          flag_bits &= ~KDP_LOG_MEMORY_DATA_SHORT;
-        else if (::strcasecmp(arg, "data-long") == 0)
-          flag_bits &= ~KDP_LOG_MEMORY_DATA_LONG;
-        else if (::strcasecmp(arg, "process") == 0)
-          flag_bits &= ~KDP_LOG_PROCESS;
-        else if (::strcasecmp(arg, "step") == 0)
-          flag_bits &= ~KDP_LOG_STEP;
-        else if (::strcasecmp(arg, "thread") == 0)
-          flag_bits &= ~KDP_LOG_THREAD;
-        else if (::strncasecmp(arg, "watch", 5) == 0)
-          flag_bits &= ~KDP_LOG_WATCHPOINTS;
-        else {
-          feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
-          ListLogCategories(feedback_strm);
-        }
-      }
-    }
-
-    log->GetMask().Reset(flag_bits);
-    if (flag_bits == 0)
-      g_log_enabled = false;
-  }
-
-  return;
-}
-
-Log *ProcessKDPLog::EnableLog(
-    const std::shared_ptr<llvm::raw_ostream> &log_stream_sp,
-    uint32_t log_options, const char **categories, Stream *feedback_strm) {
-  // Try see if there already is a log - that way we can reuse its settings.
-  // We could reuse the log in toto, but we don't know that the stream is the
-  // same.
-  uint32_t flag_bits = 0;
-  if (g_log)
-    flag_bits = g_log->GetMask().Get();
-
-  // Now make a new log with this stream if one was provided
-  if (log_stream_sp) {
-    if (g_log)
-      g_log->SetStream(log_stream_sp);
-    else
-      g_log = new Log(log_stream_sp);
-  }
-
-  if (g_log) {
-    bool got_unknown_category = false;
-    for (size_t i = 0; categories[i] != NULL; ++i) {
-      const char *arg = categories[i];
-
-      if (::strcasecmp(arg, "all") == 0)
-        flag_bits |= KDP_LOG_ALL;
-      else if (::strcasecmp(arg, "async") == 0)
-        flag_bits |= KDP_LOG_ASYNC;
-      else if (::strncasecmp(arg, "break", 5) == 0)
-        flag_bits |= KDP_LOG_BREAKPOINTS;
-      else if (::strncasecmp(arg, "comm", 4) == 0)
-        flag_bits |= KDP_LOG_COMM;
-      else if (::strcasecmp(arg, "default") == 0)
-        flag_bits |= KDP_LOG_DEFAULT;
-      else if (::strcasecmp(arg, "packets") == 0)
-        flag_bits |= KDP_LOG_PACKETS;
-      else if (::strcasecmp(arg, "memory") == 0)
-        flag_bits |= KDP_LOG_MEMORY;
-      else if (::strcasecmp(arg, "data-short") == 0)
-        flag_bits |= KDP_LOG_MEMORY_DATA_SHORT;
-      else if (::strcasecmp(arg, "data-long") == 0)
-        flag_bits |= KDP_LOG_MEMORY_DATA_LONG;
-      else if (::strcasecmp(arg, "process") == 0)
-        flag_bits |= KDP_LOG_PROCESS;
-      else if (::strcasecmp(arg, "step") == 0)
-        flag_bits |= KDP_LOG_STEP;
-      else if (::strcasecmp(arg, "thread") == 0)
-        flag_bits |= KDP_LOG_THREAD;
-      else if (::strncasecmp(arg, "watch", 5) == 0)
-        flag_bits |= KDP_LOG_WATCHPOINTS;
-      else {
-        feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
-        if (got_unknown_category == false) {
-          got_unknown_category = true;
-          ListLogCategories(feedback_strm);
-        }
-      }
-    }
-    if (flag_bits == 0)
-      flag_bits = KDP_LOG_DEFAULT;
-    g_log->GetMask().Reset(flag_bits);
-    g_log->GetOptions().Reset(log_options);
-  }
-  g_log_enabled = true;
-  return g_log;
-}
+static constexpr Log::Category g_categories[] = {
+    {{"async"}, {"log asynchronous activity"}, KDP_LOG_ASYNC},
+    {{"break"}, {"log breakpoints"}, KDP_LOG_BREAKPOINTS},
+    {{"comm"}, {"log communication activity"}, KDP_LOG_COMM},
+    {{"data-long"},
+     {"log memory bytes for memory reads and writes for all transactions"},
+     KDP_LOG_MEMORY_DATA_LONG},
+    {{"data-short"},
+     {"log memory bytes for memory reads and writes for short transactions "
+      "only"},
+     KDP_LOG_MEMORY_DATA_SHORT},
+    {{"memory"}, {"log memory reads and writes"}, KDP_LOG_MEMORY},
+    {{"packets"}, {"log gdb remote packets"}, KDP_LOG_PACKETS},
+    {{"process"}, {"log process events and activities"}, KDP_LOG_PROCESS},
+    {{"step"}, {"log step related activities"}, KDP_LOG_STEP},
+    {{"thread"}, {"log thread events and activities"}, KDP_LOG_THREAD},
+    {{"watch"}, {"log watchpoint related activities"}, KDP_LOG_WATCHPOINTS},
+};
 
-void ProcessKDPLog::ListLogCategories(Stream *strm) {
-  strm->Printf(
-      "Logging categories for '%s':\n"
-      "  all - turn on all available logging categories\n"
-      "  async - log asynchronous activity\n"
-      "  break - log breakpoints\n"
-      "  communication - log communication activity\n"
-      "  default - enable the default set of logging categories for liblldb\n"
-      "  packets - log gdb remote packets\n"
-      "  memory - log memory reads and writes\n"
-      "  data-short - log memory bytes for memory reads and writes for short "
-      "transactions only\n"
-      "  data-long - log memory bytes for memory reads and writes for all "
-      "transactions\n"
-      "  process - log process events and activities\n"
-      "  thread - log thread events and activities\n"
-      "  step - log step related activities\n"
-      "  verbose - enable verbose logging\n"
-      "  watch - log watchpoint related activities\n",
-      ProcessKDP::GetPluginNameStatic().GetCString());
-}
+Log::Channel ProcessKDPLog::g_channel(g_categories, KDP_LOG_DEFAULT);
 
-void ProcessKDPLog::LogIf(uint32_t mask, const char *format, ...) {
-  Log *log(ProcessKDPLog::GetLogIfAllCategoriesSet(mask));
-  if (log) {
-    va_list args;
-    va_start(args, format);
-    log->VAPrintf(format, args);
-    va_end(args);
-  }
-}
+void ProcessKDPLog::Initialize() { Log::Register("kdp-remote", g_channel); }

Modified: lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.h?rev=295450&r1=295449&r2=295450&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.h (original)
+++ lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDPLog.h Fri Feb 17 09:08:08 2017
@@ -10,11 +10,6 @@
 #ifndef liblldb_ProcessKDPLog_h_
 #define liblldb_ProcessKDPLog_h_
 
-// C Includes
-// C++ Includes
-// Other libraries and framework includes
-
-// Project includes
 #include "lldb/Core/Log.h"
 
 #define KDP_LOG_PROCESS (1u << 1)
@@ -32,21 +27,17 @@
 #define KDP_LOG_ALL (UINT32_MAX)
 #define KDP_LOG_DEFAULT KDP_LOG_PACKETS
 
+namespace lldb_private {
 class ProcessKDPLog {
-public:
-  static lldb_private::Log *GetLogIfAllCategoriesSet(uint32_t mask = 0);
-
-  static void DisableLog(const char **categories,
-                         lldb_private::Stream *feedback_strm);
+  static Log::Channel g_channel;
 
-  static lldb_private::Log *
-  EnableLog(const std::shared_ptr<llvm::raw_ostream> &log_stream_sp,
-            uint32_t log_options, const char **categories,
-            lldb_private::Stream *feedback_strm);
-
-  static void ListLogCategories(lldb_private::Stream *strm);
+public:
+  static void Initialize();
 
-  static void LogIf(uint32_t mask, const char *format, ...);
+  static Log *GetLogIfAllCategoriesSet(uint32_t mask) {
+    return g_channel.GetLogIfAll(mask);
+  }
 };
+}
 
 #endif // liblldb_ProcessKDPLog_h_

Modified: lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ThreadKDP.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ThreadKDP.cpp?rev=295450&r1=295449&r2=295450&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ThreadKDP.cpp (original)
+++ lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ThreadKDP.cpp Fri Feb 17 09:08:08 2017
@@ -40,15 +40,13 @@ using namespace lldb_private;
 ThreadKDP::ThreadKDP(Process &process, lldb::tid_t tid)
     : Thread(process, tid), m_thread_name(), m_dispatch_queue_name(),
       m_thread_dispatch_qaddr(LLDB_INVALID_ADDRESS) {
-  ProcessKDPLog::LogIf(KDP_LOG_THREAD,
-                       "%p: ThreadKDP::ThreadKDP (tid = 0x%4.4x)", this,
-                       GetID());
+  Log *log = ProcessKDPLog::GetLogIfAllCategoriesSet(KDP_LOG_THREAD);
+  LLDB_LOG(log, "this = {0}, tid = {1:x}", this, GetID());
 }
 
 ThreadKDP::~ThreadKDP() {
-  ProcessKDPLog::LogIf(KDP_LOG_THREAD,
-                       "%p: ThreadKDP::~ThreadKDP (tid = 0x%4.4x)", this,
-                       GetID());
+  Log *log = ProcessKDPLog::GetLogIfAllCategoriesSet(KDP_LOG_THREAD);
+  LLDB_LOG(log, "this = {0}, tid = {1:x}", this, GetID());
   DestroyThread();
 }
 




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