bool UnixNativeCodeManager::FindMethodInfo(PTR_VOID ControlPC,
MethodInfo * pMethodInfoOut)
{
UnixNativeMethodInfo * pMethodInfo = (UnixNativeMethodInfo *)pMethodInfoOut;
UIntNative startAddress;
UIntNative lsda;
if (!FindProcInfo((UIntNative)ControlPC, &startAddress, &lsda))
{
return false;
}
PTR_UInt8 lsdaPtr = dac_cast<PTR_UInt8>(lsda);
int offsetFromMainFunction = *dac_cast<PTR_Int32>(lsdaPtr);
lsdaPtr += sizeof(int);
pMethodInfo->funcFlags = *lsdaPtr;
++lsdaPtr;
PTR_UInt8 ehInfoPtr = NULL;
if (pMethodInfo->funcFlags & UBF_FUNC_HAS_EHINFO)
{
// main function contains the EH info blob in its LSDA, funclets just refer
// to the main function's blob
if (offsetFromMainFunction == 0)
{
ehInfoPtr = lsdaPtr;
}
else
{
Int32 relAddr = *dac_cast<PTR_Int32>(lsdaPtr);
lsdaPtr += sizeof(Int32);
ehInfoPtr = lsdaPtr + relAddr;
}
}
pMethodInfo->pMethodStartAddress = (PTR_VOID)(startAddress - offsetFromMainFunction);
pMethodInfo->pEhInfo = ehInfoPtr;
pMethodInfo->executionAborted = false;
return true;
}
bool UnixNativeCodeManager::FindMethodInfo(PTR_VOID ControlPC,
MethodInfo * pMethodInfoOut)
{
UnixNativeMethodInfo * pMethodInfo = (UnixNativeMethodInfo *)pMethodInfoOut;
UIntNative startAddress;
UIntNative lsda;
if (!FindProcInfo((UIntNative)ControlPC, &startAddress, &lsda))
{
return false;
}
PTR_UInt8 p = dac_cast<PTR_UInt8>(lsda);
pMethodInfo->pLSDA = p;
uint8_t unwindBlockFlags = *p++;
if ((unwindBlockFlags & UBF_FUNC_KIND_MASK) != UBF_FUNC_KIND_ROOT)
{
// Funclets just refer to the main function's blob
pMethodInfo->pMainLSDA = p + *dac_cast<PTR_Int32>(p);
p += sizeof(int32_t);
pMethodInfo->pMethodStartAddress = dac_cast<PTR_VOID>(startAddress - *dac_cast<PTR_Int32>(p));
}
else
{
pMethodInfo->pMainLSDA = dac_cast<PTR_UInt8>(lsda);
pMethodInfo->pMethodStartAddress = dac_cast<PTR_VOID>(startAddress);
}
pMethodInfo->executionAborted = false;
return true;
}
