unsigned BaseStackWalkContext::GetSectionInfo(gtVAddr virtualAddr, gtRVAddr& offset)
{
assert(NULL != m_pWorkingSet);
unsigned sectionIndex = INVALID_SECTION_INDEX;
ExecutableFile* pExe = m_pWorkingSet->FindModule(virtualAddr);
if (NULL != pExe)
{
gtRVAddr rva = pExe->VaToRva(virtualAddr);
unsigned index = pExe->LookupSectionIndex(rva);
gtRVAddr startRva, endRva;
if (pExe->GetSectionRvaLimits(index, startRva, endRva))
{
sectionIndex = index;
offset = rva - startRva;
}
}
return sectionIndex;
}
bool GetImixInfoList(CpuProfileReader& profileReader,
ProcessIdType pid,
ThreadIdType tid,
CpuProfileModule& module,
gtUInt64 flags,
gtUInt64 coreMask,
ModuleImixInfoList& modImixInfoList,
gtUInt64& totalSamples)
{
GT_UNREFERENCED_PARAMETER(profileReader);
GT_UNREFERENCED_PARAMETER(tid);
GT_UNREFERENCED_PARAMETER(coreMask);
bool rv = true;
bool ignoreSysModule = ((flags & SAMPLE_IGNORE_SYSTEM_MODULES) == SAMPLE_IGNORE_SYSTEM_MODULES) ? true : false;
bool groupByModule = ((flags & SAMPLE_GROUP_BY_MODULE) == SAMPLE_GROUP_BY_MODULE) ? true : false;
totalSamples = 0;
if (!ignoreSysModule || !module.isSystemModule())
{
gtString exePath = module.getPath();
ExecutableFile* pExecutable = ExecutableFile::Open(exePath.asCharArray(), module.getBaseAddr());
if (nullptr == pExecutable)
{
rv = false;
}
if (rv)
{
const gtUByte* pCode = nullptr;
gtRVAddr sectionStartRva = 0, sectionEndRva = 0;
unsigned int prevSectionIndex = static_cast<unsigned int>(-1);
ModuleImixInfo modInfo;
modInfo.m_pModule = &module;
gtUInt64 totalModSamples = 0;
// Setup disassembler
LibDisassembler dasm;
// if the code is 64-bits
bool isLongMode = pExecutable->Is64Bit();
dasm.SetLongMode(isLongMode);
// For each function
auto fit = module.getBeginFunction();
auto fitEnd = module.getEndFunction();
for (; fit != fitEnd; ++fit)
{
CpuProfileFunction& function = fit->second;
// For each sample
auto sit = function.getBeginSample();
auto sitEnd = function.getEndSample();
for (; sit != sitEnd; ++sit)
{
const AptKey& aptKey = sit->first;
gtVAddr funcOffset = aptKey.m_addr;
ProcessIdType sampPid = (groupByModule) ? static_cast<ProcessIdType>(-1) : aptKey.m_pid;
if (sampPid != pid)
{
continue;
}
gtRVAddr startRVAddr = pExecutable->VaToRva(function.getBaseAddr() + funcOffset);
unsigned int sectionIndex = pExecutable->LookupSectionIndex(startRVAddr);
BYTE error_code;
UIInstInfoType temp_struct;
char dasmArray[256] = { 0 };
unsigned int strlength = 255;
if (pExecutable->GetSectionsCount() <= sectionIndex)
{
strcpy(dasmArray, "BAD DASM");
}
else if (sectionIndex == prevSectionIndex)
{
gtRVAddr codeOffset = startRVAddr - sectionStartRva;
const gtUByte* pCurrentCode = pCode + codeOffset;
// Get disassembly for the current pCode from the disassembler
HRESULT hr = dasm.UIDisassemble((BYTE*)pCurrentCode, (unsigned int*)&strlength, (BYTE*)dasmArray, &temp_struct, &error_code);
if (S_OK != hr)
{
strcpy(dasmArray, "BAD DASM");
}
}
else
{
pCode = pExecutable->GetSectionBytes(sectionIndex);
pExecutable->GetSectionRvaLimits(sectionIndex, sectionStartRva, sectionEndRva);
// GetCodeBytes return the pointer to the sectionStart
// We need to add the offset to the beginning of the function
gtRVAddr codeOffset = startRVAddr - sectionStartRva;
const gtUByte* pCurrentCode = pCode + codeOffset;
// Get disassembly for the current pCode from the disassembler
HRESULT hr = dasm.UIDisassemble((BYTE*)pCurrentCode, (unsigned int*)&strlength, (BYTE*)dasmArray, &temp_struct, &error_code);
if (S_OK != hr)
{
strcpy(dasmArray, "BAD DASM");
}
prevSectionIndex = sectionIndex;
}
std::string dasmString(dasmArray);
auto it = modInfo.m_InstMap.find(dasmString);
gtUInt64 sampleCount = sit->second.getTotal();
if (it == modInfo.m_InstMap.end())
{
modInfo.m_InstMap.insert({ dasmString, sampleCount });
}
else
{
it->second += sampleCount;
}
totalModSamples += sampleCount;
}
}
delete pExecutable;
modInfo.m_samplesCount = totalModSamples;
modImixInfoList.push_back(modInfo);
totalSamples += totalModSamples;
}
}
return rv;
}
bool JavaJncReader::Open(const wchar_t* pWFileName)
{
JncPcStackInfoMap::iterator it;
char fileName[261];
memset(fileName, 0, sizeof(fileName));
if (nullptr == pWFileName)
{
return false;
}
wcstombs(fileName, pWFileName, 260);
ExecutableFile* pExecutable = ExecutableFile::Open(pWFileName);
if (nullptr == pExecutable)
{
return false;
}
m_sectionCounts = pExecutable->GetSectionsCount();
// Get The .text section
unsigned codeSecIndex = pExecutable->LookupSectionIndex(".text");
gtRVAddr codeStartRva = 0, codeEndRva = 0;
pExecutable->GetSectionRvaLimits(codeSecIndex, codeStartRva, codeEndRva);
m_pCodeBuf = pExecutable->GetSectionBytes(codeSecIndex);
m_loadAddr = static_cast<gtRVAddr>(codeStartRva) + pExecutable->GetImageBase();
m_textOffset = codeStartRva;
m_textSize = codeEndRva - codeStartRva;
if (nullptr == m_pCodeBuf || m_textSize <= 0)
{
delete pExecutable;
return false;
}
// Get the .stringtable
m_string_table_buf = pExecutable->GetSectionBytes(pExecutable->LookupSectionIndex(".stringtable"));
if (nullptr == m_string_table_buf)
{
// JNC Files for Native methods won't have stringtable, bc2src and pc2bc sections..
m_pExecutable = pExecutable;
return true;
}
if (!_process_stringtable_section())
{
delete pExecutable;
m_pExecutable = nullptr;
return false;
}
// Process .bc2src
m_pBc2srcBuf = pExecutable->GetSectionBytes(pExecutable->LookupSectionIndex(".bc2src"));
if (nullptr == m_pBc2srcBuf)
{
delete pExecutable;
m_pExecutable = nullptr;
return false;
}
if (!_process_bc2src_section())
{
delete pExecutable;
m_pExecutable = nullptr;
return false;
}
// Process the .pc2bc
m_pPc2bcBuf = pExecutable->GetSectionBytes(pExecutable->LookupSectionIndex(".pc2bc"));
if (nullptr == m_pPc2bcBuf)
{
OS_OUTPUT_FORMAT_DEBUG_LOG(OS_DEBUG_LOG_DEBUG, L"Warning: file %hs does not have pc-to-byte code information", fileName);
delete pExecutable;
m_pExecutable = nullptr;
return false;
}
if (!_process_pc2bc_section())
{
delete pExecutable;
m_pExecutable = nullptr;
return false;
}
// Setup inline information map
if (!_process_inline_map())
{
delete pExecutable;
m_pExecutable = nullptr;
return false;
}
// DEBUG: dump the java inline entries
// DumpJavaInlineMap();
// Identify the main method for this JNC
if (m_jncPcStackInfoMap.empty())
{
// If there is no PC stack info, we should still be able to
// provide disassembly details. Hence return true;
return true;
}
it = m_jncPcStackInfoMap.begin();
m_mainMethodId = it->second->methods[it->second->numstackframes - 1];
m_methodName = m_jncMethodMap[m_mainMethodId].name;
m_srcFile = m_jncMethodMap[m_mainMethodId].sourceName;
if (m_jncMethodMap[m_mainMethodId].lineNumberVec.size() > 0)
{
m_startLine = m_jncMethodMap[m_mainMethodId].lineNumberVec[0].line_number;
m_possibleEndLine =
m_jncMethodMap[m_mainMethodId].lineNumberVec[m_jncMethodMap[m_mainMethodId].lineNumberVec.size() - 1].line_number;
}
m_mainInlineDepth = it->second->numstackframes;
for (unsigned int i = 0; i < m_addressRangeTable.size(); i++)
{
if (m_addressRangeTable[i].id == m_mainMethodId)
{
m_addressRangeTable[i].pc_start = m_loadAddr;
}
}
m_pExecutable = pExecutable;
return true;
}