gtVAddr BaseStackWalkContext::GetImageLoadAddress(gtVAddr virtualAddr, gtVAddr& baseAddr) const
{
assert(NULL != m_pWorkingSet);
gtVAddr loadAddr;
ExecutableFile* pExe = m_pWorkingSet->FindModule(virtualAddr);
if (NULL != pExe)
{
baseAddr = pExe->GetImageBase();
loadAddr = pExe->GetLoadAddress();
}
else
{
baseAddr = 0ULL;
loadAddr = 0ULL;
}
return loadAddr;
}
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;
}