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//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
//-----------------------------------------------------------------------------
// MethodStatsEmitter.cpp - Emits useful method stats for compiled methods for analysis
//-----------------------------------------------------------------------------
#include "standardpch.h"
#include "methodstatsemitter.h"
#include "logging.h"
MethodStatsEmitter::MethodStatsEmitter(char *nameOfInput)
{
char filename[MAX_PATH + 1];
sprintf_s(filename, MAX_PATH + 1, "%s.stats", nameOfInput);
hStatsFile = CreateFileA(filename, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hStatsFile == INVALID_HANDLE_VALUE)
{
LogError("Failed to open output file '%s'. GetLastError()=%u", filename, GetLastError());
}
}
MethodStatsEmitter::~MethodStatsEmitter()
{
if (hStatsFile != INVALID_HANDLE_VALUE)
{
if (CloseHandle(hStatsFile) == 0)
{
LogError("CloseHandle failed. GetLastError()=%u", GetLastError());
}
}
}
void MethodStatsEmitter::Emit(int methodNumber, MethodContext *mc, ULONGLONG firstTime, ULONGLONG secondTime)
{
if (hStatsFile != INVALID_HANDLE_VALUE)
{
//Print the CSV header row
char rowData[2048];
DWORD charCount = 0;
DWORD bytesWritten = 0;
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 'h') != NULL || strchr(statsTypes, 'H') != NULL)
{
//Obtain the method Hash
char md5Hash[MD5_HASH_BUFFER_SIZE];
if (mc->dumpMethodMD5HashToBuffer(md5Hash, MD5_HASH_BUFFER_SIZE) != MD5_HASH_BUFFER_SIZE)
md5Hash[0] = 0;
charCount += sprintf_s(rowData + charCount, _countof(rowData) - charCount, "%s,", md5Hash);
}
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 'n') != NULL || strchr(statsTypes, 'N') != NULL)
{
charCount += sprintf_s(rowData + charCount, _countof(rowData) - charCount, "%d,", methodNumber);
}
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 'i') != NULL || strchr(statsTypes, 'I') != NULL)
{
//Obtain the IL code size for this method
CORINFO_METHOD_INFO info;
unsigned flags = 0;
mc->repCompileMethod(&info, &flags);
charCount += sprintf_s(rowData + charCount, _countof(rowData) - charCount, "%d,", info.ILCodeSize);
}
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 'a') != NULL || strchr(statsTypes, 'A') != NULL)
{
//Obtain the compiled method ASM size
BYTE *temp;
DWORD codeSize;
CorJitResult result;
if (mc->cr->CompileMethod != nullptr)
mc->cr->repCompileMethod(&temp, &codeSize, &result);
else
codeSize = 0;//this is likely a thin mc
charCount += sprintf_s(rowData + charCount, _countof(rowData) - charCount, "%d,", codeSize);
}
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 't') != NULL || strchr(statsTypes, 'T') != NULL)
{
charCount += sprintf_s(rowData + charCount, _countof(rowData) - charCount, "%llu,%llu,", firstTime, secondTime);
}
//get rid of the final ',' and replace it with a '\n'
rowData[charCount - 1] = '\n';
if (!WriteFile(hStatsFile, rowData, charCount, &bytesWritten, nullptr) || bytesWritten != charCount)
{
LogError("Failed to write row header '%s'. GetLastError()=%u", rowData, GetLastError());
}
}
}
void MethodStatsEmitter::SetStatsTypes(char *types)
{
statsTypes = types;
if (hStatsFile != INVALID_HANDLE_VALUE)
{
//Print the CSV header row
char rowHeader[1024];
DWORD charCount = 0;
DWORD bytesWritten = 0;
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 'h') != NULL || strchr(statsTypes, 'H') != NULL)
charCount += sprintf_s(rowHeader + charCount, _countof(rowHeader) - charCount, "HASH,");
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 'n') != NULL || strchr(statsTypes, 'N') != NULL)
charCount += sprintf_s(rowHeader + charCount, _countof(rowHeader) - charCount, "METHOD_NUMBER,");
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 'i') != NULL || strchr(statsTypes, 'I') != NULL)
charCount += sprintf_s(rowHeader + charCount, _countof(rowHeader) - charCount, "IL_CODE_SIZE,");
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 'a') != NULL || strchr(statsTypes, 'A') != NULL)
charCount += sprintf_s(rowHeader + charCount, _countof(rowHeader) - charCount, "ASM_CODE_SIZE,");
if (strchr(statsTypes, '*') != NULL || strchr(statsTypes, 't') != NULL || strchr(statsTypes, 'T') != NULL)
charCount += sprintf_s(rowHeader + charCount, _countof(rowHeader) - charCount, "Time1,Time2,");
//get rid of the final ',' and replace it with a '\n'
rowHeader[charCount - 1] = '\n';
if (!WriteFile(hStatsFile, rowHeader, charCount, &bytesWritten, nullptr) || bytesWritten != charCount)
{
LogError("Failed to write row header '%s'. GetLastError()=%u", rowHeader, GetLastError());
}
}
}
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