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Move the JIT registration logic in its own file

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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.
This commit is contained in:
Gabriel Corona
2014-10-31 20:12:54 +01:00
parent cdce5ace25
commit 9722ae2a5d
6 changed files with 138 additions and 75 deletions
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115
Source/Core/Common/JitRegister.cpp Normal file
View File

@ -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());
}
}
}