Move the JIT registration logic in its own file

Move the JITed function/basic-block registration logic out of the CPU
subsystem in order to add JIT registration to JITed DSP and
Video/VertexLoader code.

This necessary in order to add /tmp/perf-$pid.map support to other
JITed code as they need to write to the same file.

Source/Core/Common/CMakeLists.txt

@@ -6,6 +6,7 @@ set(SRCS BreakPoints.cpp
          GekkoDisassembler.cpp
          Hash.cpp
          IniFile.cpp
+         JitRegister.cpp
          MathUtil.cpp
          MemArena.cpp
          MemoryUtil.cpp

Source/Core/Common/Common.vcxproj

@@ -62,6 +62,7 @@
     <ClInclude Include="GekkoDisassembler.h" />
     <ClInclude Include="Hash.h" />
     <ClInclude Include="IniFile.h" />
+    <ClInclude Include="JitRegister.h" />
     <ClInclude Include="LinearDiskCache.h" />
     <ClInclude Include="MathUtil.h" />
     <ClInclude Include="MemArena.h" />
@@ -97,6 +98,7 @@
     <ClCompile Include="GekkoDisassembler.cpp" />
     <ClCompile Include="Hash.cpp" />
     <ClCompile Include="IniFile.cpp" />
+    <ClCompile Include="JitRegister.cpp" />
     <ClCompile Include="MathUtil.cpp" />
     <ClCompile Include="MemArena.cpp" />
     <ClCompile Include="MemoryUtil.cpp" />

Source/Core/Common/JitRegister.cpp

@@ -0,0 +1,115 @@
+// Copyright 2014 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include <cinttypes>
+#include <cstddef>
+#include <cstdio>
+#include <cstdlib>
+#include <fstream>
+#include <string>
+
+#include "Common/CommonTypes.h"
+#include "Common/FileUtil.h"
+#include "Common/JitRegister.h"
+#include "Common/StringUtil.h"
+
+#ifdef _WIN32
+#include <process.h>
+#else
+#include <unistd.h>
+#endif
+
+#if defined USE_OPROFILE && USE_OPROFILE
+#include <opagent.h>
+#endif
+
+#if defined USE_VTUNE
+#include <jitprofiling.h>
+#pragma comment(lib, "libittnotify.lib")
+#pragma comment(lib, "jitprofiling.lib")
+#endif
+
+#if defined USE_OPROFILE && USE_OPROFILE
+static op_agent_t s_agent = nullptr;
+#endif
+
+static File::IOFile s_perf_map_file;
+
+namespace JitRegister
+{
+
+void Init()
+{
+#if defined USE_OPROFILE && USE_OPROFILE
+	s_agent = op_open_agent();
+#endif
+
+	const char* perf_dir = getenv("DOLPHIN_PERF_DIR");
+	if (perf_dir && perf_dir[0])
+	{
+		std::string filename = StringFromFormat("%s/perf-%d.map", perf_dir, getpid());
+		s_perf_map_file.Open(filename, "w");
+		// Disable buffering in order to avoid missing some mappings
+		// if the event of a crash:
+		std::setvbuf(s_perf_map_file.GetHandle(), NULL, _IONBF, 0);
+	}
+}
+
+void Shutdown()
+{
+#if defined USE_OPROFILE && USE_OPROFILE
+	op_close_agent(s_agent);
+	s_agent = nullptr;
+#endif
+
+#ifdef USE_VTUNE
+	iJIT_NotifyEvent(iJVM_EVENT_TYPE_SHUTDOWN, nullptr);
+#endif
+
+	if (s_perf_map_file.IsOpen())
+		s_perf_map_file.Close();
+}
+
+void Register(const void* base_address, u32 code_size,
+	const char* name, u32 original_address)
+{
+#if !(defined USE_OPROFILE && USE_OPROFILE) && !defined(USE_VTUNE)
+	if (!s_perf_map_file.IsOpen())
+		return;
+#endif
+
+	std::string symbol_name;
+	if (original_address)
+		symbol_name = StringFromFormat("%s_%x", name, original_address);
+	else
+		symbol_name = name;
+
+#if defined USE_OPROFILE && USE_OPROFILE
+	op_write_native_code(s_agent, symbol_name.data(), (u64)base_address,
+		base_address, code_size);
+#endif
+
+#ifdef USE_VTUNE
+	iJIT_Method_Load jmethod = {0};
+	jmethod.method_id = iJIT_GetNewMethodID();
+	jmethod.class_file_name = "";
+	jmethod.source_file_name = __FILE__;
+	jmethod.method_load_address = base_address;
+	jmethod.method_size = code_size;
+	jmethod.line_number_size = 0;
+	jmethod.method_name = symbol_name.data();
+	iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED, (void*)&jmethod);
+#endif
+
+	// Linux perf /tmp/perf-$pid.map:
+	if (s_perf_map_file.IsOpen())
+	{
+		std::string entry = StringFromFormat(
+			"%" PRIx64 " %x %s\n",
+			(u64)base_address, code_size, symbol_name.data());
+		s_perf_map_file.WriteBytes(entry.data(), entry.size());
+	}
+}
+
+}

Source/Core/Common/JitRegister.h

@@ -0,0 +1,15 @@
+// Copyright 2014 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+namespace JitRegister
+{
+
+void Init();
+void Shutdown();
+void Register(const void* base_address, u32 code_size,
+	const char* name, u32 original_address=0);
+
+}

Source/Core/Core/PowerPC/JitCommon/JitCache.cpp

@@ -9,17 +9,10 @@
 // performance hit, it's not enabled by default, but it's useful for
 // locating performance issues.
 
-#include <cinttypes>
-
-#ifdef _WIN32
-#include <process.h>
-#else
-#include <unistd.h>
-#endif
-
 #include "disasm.h"
 
 #include "Common/CommonTypes.h"
+#include "Common/JitRegister.h"
 #include "Common/MemoryUtil.h"
 #include "Core/PowerPC/JitInterface.h"
 #include "Core/PowerPC/JitCommon/JitBase.h"
@@ -28,18 +21,6 @@
 #include <windows.h>
 #endif
 
-#if defined USE_OPROFILE && USE_OPROFILE
-#include <opagent.h>
-
-op_agent_t agent;
-#endif
-
-#if defined USE_VTUNE
-#include <jitprofiling.h>
-#pragma comment(lib, "libittnotify.lib")
-#pragma comment(lib, "jitprofiling.lib")
-#endif
-
 using namespace Gen;
 
 	bool JitBaseBlockCache::IsFull() const
@@ -55,17 +36,7 @@ using namespace Gen;
 			return;
 		}
 
-#if defined USE_OPROFILE && USE_OPROFILE
-		agent = op_open_agent();
-#endif
-
-		const char* perf_dir = getenv("DOLPHIN_PERF_DIR");
-		if (perf_dir && perf_dir[0])
-		{
-			std::string filename = StringFromFormat("%s/perf-%d.map",
-			  perf_dir, getpid());
-			m_perf_map_file.open(filename, std::ios::trunc);
-		}
+		JitRegister::Init();
 
 		iCache.fill(JIT_ICACHE_INVALID_BYTE);
 		iCacheEx.fill(JIT_ICACHE_INVALID_BYTE);
@@ -79,16 +50,8 @@ using namespace Gen;
 	{
 		num_blocks = 0;
 		m_initialized = false;
-#if defined USE_OPROFILE && USE_OPROFILE
-		op_close_agent(agent);
-#endif
 
-#ifdef USE_VTUNE
-		iJIT_NotifyEvent(iJVM_EVENT_TYPE_SHUTDOWN, nullptr);
-#endif
-
-		if (m_perf_map_file.is_open())
-			m_perf_map_file.close();
+		JitRegister::Shutdown();
 	}
 
 	// This clears the JIT cache. It's called from JitCache.cpp when the JIT cache
@@ -178,34 +141,8 @@ using namespace Gen;
 			LinkBlockExits(block_num);
 		}
 
-#if defined USE_OPROFILE && USE_OPROFILE
-		char buf[100];
-		sprintf(buf, "EmuCode%x", b.originalAddress);
-		const u8* blockStart = blockCodePointers[block_num];
-		op_write_native_code(agent, buf, (uint64_t)blockStart,
-		                     blockStart, b.codeSize);
-#endif
-
-#ifdef USE_VTUNE
-		sprintf(b.blockName, "EmuCode_0x%08x", b.originalAddress);
-
-		iJIT_Method_Load jmethod = {0};
-		jmethod.method_id = iJIT_GetNewMethodID();
-		jmethod.class_file_name = "";
-		jmethod.source_file_name = __FILE__;
-		jmethod.method_load_address = (void*)blockCodePointers[block_num];
-		jmethod.method_size = b.codeSize;
-		jmethod.line_number_size = 0;
-		jmethod.method_name = b.blockName;
-		iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED, (void*)&jmethod);
-#endif
-
-		if (m_perf_map_file.is_open())
-		{
-			m_perf_map_file << StringFromFormat(
-			  "%" PRIx64 " %x EmuCode_%x\n",
-			  (u64)blockCodePointers[block_num], b.codeSize, b.originalAddress);
-		}
+		JitRegister::Register(blockCodePointers[block_num], b.codeSize,
+			"JIT_PPC", b.originalAddress);
 	}
 
 	const u8 **JitBaseBlockCache::GetCodePointers()

Source/Core/Core/PowerPC/JitCommon/JitCache.h

@@ -6,7 +6,6 @@
 
 #include <array>
 #include <bitset>
-#include <fstream>
 #include <map>
 #include <memory>
 #include <vector>
@@ -57,10 +56,6 @@ struct JitBlock
 	u64 ticStart;   // for profiling - time.
 	u64 ticStop;    // for profiling - time.
 	u64 ticCounter; // for profiling - time.
-
-#ifdef USE_VTUNE
-	char blockName[32];
-#endif
 };
 
 typedef void (*CompiledCode)();
@@ -120,8 +115,6 @@ class JitBaseBlockCache
 
 	bool m_initialized;
 
-	std::ofstream m_perf_map_file;
-
 	bool RangeIntersect(int s1, int e1, int s2, int e2) const;
 	void LinkBlockExits(int i);
 	void LinkBlock(int i);