private unsafe bool TryGetStaticRuntimeMethodHandleComponents(RuntimeMethodHandle runtimeMethodHandle, out RuntimeTypeHandle declaringTypeHandle, out MethodNameAndSignature nameAndSignature, out RuntimeTypeHandle[] genericMethodArgs)
{
declaringTypeHandle = default(RuntimeTypeHandle);
nameAndSignature = null;
genericMethodArgs = null;
// Make sure it's not a dynamically allocated RuntimeMethodHandle before we attempt to use it to parse native layout data
Debug.Assert(((*(IntPtr *)&runtimeMethodHandle).ToInt64() & 0x1) == 0);
RuntimeMethodHandleInfo *methodData = *(RuntimeMethodHandleInfo **)&runtimeMethodHandle;
#if CORERT
// The native layout info signature is a pair.
// The first is a pointer that points to the TypeManager indirection cell.
// The second is the offset into the native layout info blob in that TypeManager, where the native signature is encoded.
IntPtr *nativeLayoutInfoSignatureData = (IntPtr *)methodData->NativeLayoutInfoSignature;
RuntimeSignature signature = RuntimeSignature.CreateFromNativeLayoutSignature(
new TypeManagerHandle(*(IntPtr *)nativeLayoutInfoSignatureData[0]),
(uint)nativeLayoutInfoSignatureData[1].ToInt32());
#else
IntPtr moduleHandle = RuntimeAugments.GetOSModuleFromPointer(methodData->NativeLayoutInfoSignature);
RuntimeSignature signature = RuntimeSignature.CreateFromNativeLayoutSignature(
new TypeManagerHandle(moduleHandle),
GetNativeLayoutInfoReader(new TypeManagerHandle(moduleHandle)).AddressToOffset(methodData->NativeLayoutInfoSignature));
#endif
RuntimeSignature remainingSignature;
return(GetMethodFromSignatureAndContext(signature, null, null, out declaringTypeHandle, out nameAndSignature, out genericMethodArgs, out remainingSignature));
}
public static unsafe bool TryGetTargetOfUnboxingAndInstantiatingStub(IntPtr maybeInstantiatingAndUnboxingStub, out IntPtr targetMethod)
{
targetMethod = IntPtr.Zero;
// Get module
IntPtr associatedModule = RuntimeAugments.GetOSModuleFromPointer(maybeInstantiatingAndUnboxingStub);
if (associatedModule == IntPtr.Zero)
{
return false;
}
// Get UnboxingAndInstantiatingTable
UnboxingAndInstantiatingStubMapEntry* pBlob;
uint cbBlob;
if (!RuntimeAugments.FindBlob(new TypeManagerHandle(associatedModule), (int)ReflectionMapBlob.UnboxingAndInstantiatingStubMap, (IntPtr)(&pBlob), (IntPtr)(&cbBlob)))
{
return false;
}
uint cStubs = cbBlob / (uint)sizeof(UnboxingAndInstantiatingStubMapEntry);
for (uint i = 0; i < cStubs; ++i)
{
if (RvaToFunctionPointer(new TypeManagerHandle(associatedModule), pBlob[i].StubMethodRva) == maybeInstantiatingAndUnboxingStub)
{
// We found a match, create pointer from RVA and move on.
targetMethod = RvaToFunctionPointer(new TypeManagerHandle(associatedModule), pBlob[i].MethodRva);
return true;
}
}
// Stub not found.
return false;
}
/// <summary>
/// Locate the containing module for a method and try to resolve its name based on start address.
/// </summary>
public static string GetMethodNameFromStartAddressIfAvailable(IntPtr methodStartAddress)
{
IntPtr moduleStartAddress = RuntimeAugments.GetOSModuleFromPointer(methodStartAddress);
int rva = (int)((nuint)methodStartAddress - (nuint)moduleStartAddress);
foreach (TypeManagerHandle handle in ModuleList.Enumerate())
{
if (handle.OsModuleBase == moduleStartAddress)
{
string name = _perModuleMethodNameResolverHashtable.GetOrCreateValue(handle.GetIntPtrUNSAFE()).GetMethodNameFromRvaIfAvailable(rva);
if (name != null)
{
return(name);
}
}
}
// We haven't found information in the stack trace metadata tables, but maybe reflection will have this
if (ReflectionExecution.TryGetMethodMetadataFromStartAddress(methodStartAddress,
out MetadataReader reader,
out TypeDefinitionHandle typeHandle,
out MethodHandle methodHandle))
{
return(MethodNameFormatter.FormatMethodName(reader, typeHandle, methodHandle));
}
return(null);
}
/// <summary>
/// Locate the containing module for a method and try to resolve its name based on start address.
/// </summary>
public static string GetMethodNameFromStartAddressIfAvailable(IntPtr methodStartAddress)
{
IntPtr moduleStartAddress = RuntimeAugments.GetOSModuleFromPointer(methodStartAddress);
int rva = (int)(methodStartAddress.ToInt64() - moduleStartAddress.ToInt64());
return(_perModuleMethodNameResolverHashtable
.GetOrCreateValue(moduleStartAddress)
.GetMethodNameFromRvaIfAvailable(rva));
}
public static unsafe bool TryGetTargetOfUnboxingAndInstantiatingStub(IntPtr maybeInstantiatingAndUnboxingStub, out IntPtr targetMethod)
{
targetMethod = RuntimeAugments.GetTargetOfUnboxingAndInstantiatingStub(maybeInstantiatingAndUnboxingStub);
if (targetMethod != IntPtr.Zero)
{
return true;
}
// TODO: The rest of the code in this function is specific to ProjectN only. When we kill the binder, get rid of this
// linear search code (the only API that should be used for the lookup is the one above)
// Get module
IntPtr associatedModule = RuntimeAugments.GetOSModuleFromPointer(maybeInstantiatingAndUnboxingStub);
if (associatedModule == IntPtr.Zero)
{
return false;
}
// Module having a type manager means we are not in ProjectN mode. Bail out earlier.
foreach (TypeManagerHandle handle in ModuleList.Enumerate())
{
if (handle.OsModuleBase == associatedModule && handle.IsTypeManager)
{
return false;
}
}
// Get UnboxingAndInstantiatingTable
UnboxingAndInstantiatingStubMapEntry* pBlob;
uint cbBlob;
if (!RuntimeAugments.FindBlob(new TypeManagerHandle(associatedModule), (int)ReflectionMapBlob.UnboxingAndInstantiatingStubMap, (IntPtr)(&pBlob), (IntPtr)(&cbBlob)))
{
return false;
}
uint cStubs = cbBlob / (uint)sizeof(UnboxingAndInstantiatingStubMapEntry);
for (uint i = 0; i < cStubs; ++i)
{
if (RvaToFunctionPointer(new TypeManagerHandle(associatedModule), pBlob[i].StubMethodRva) == maybeInstantiatingAndUnboxingStub)
{
// We found a match, create pointer from RVA and move on.
targetMethod = RvaToFunctionPointer(new TypeManagerHandle(associatedModule), pBlob[i].MethodRva);
return true;
}
}
// Stub not found.
return false;
}
private unsafe bool TryGetStaticRuntimeFieldHandleComponents(RuntimeFieldHandle runtimeFieldHandle, out RuntimeTypeHandle declaringTypeHandle, out string fieldName)
{
fieldName = null;
declaringTypeHandle = default(RuntimeTypeHandle);
// Make sure it's not a dynamically allocated RuntimeFieldHandle before we attempt to use it to parse native layout data
Debug.Assert(((*(IntPtr *)&runtimeFieldHandle).ToInt64() & 0x1) == 0);
RuntimeFieldHandleInfo *fieldData = *(RuntimeFieldHandleInfo **)&runtimeFieldHandle;
RuntimeSignature signature;
#if !CORERT
// If the system module is compiled with as a type manager, all modules are compiled as such
if (ModuleList.Instance.SystemModule.Handle.IsTypeManager)
#endif
{
// The native layout info signature is a pair.
// The first is a pointer that points to the TypeManager indirection cell.
// The second is the offset into the native layout info blob in that TypeManager, where the native signature is encoded.
IntPtr *nativeLayoutInfoSignatureData = (IntPtr *)fieldData->NativeLayoutInfoSignature;
signature = RuntimeSignature.CreateFromNativeLayoutSignature(
new TypeManagerHandle(*(IntPtr *)nativeLayoutInfoSignatureData[0]),
(uint)nativeLayoutInfoSignatureData[1].ToInt32());
}
#if !CORERT
else
{
IntPtr moduleHandle = RuntimeAugments.GetOSModuleFromPointer(fieldData->NativeLayoutInfoSignature);
signature = RuntimeSignature.CreateFromNativeLayoutSignature(
new TypeManagerHandle(moduleHandle),
GetNativeLayoutInfoReader(new TypeManagerHandle(moduleHandle)).AddressToOffset(fieldData->NativeLayoutInfoSignature));
}
#endif
RuntimeSignature remainingSignature;
if (!GetTypeFromSignatureAndContext(signature, null, null, out declaringTypeHandle, out remainingSignature))
{
return(false);
}
// GetTypeFromSignatureAndContext parses the type from the signature and returns a pointer to the next
// part of the native layout signature to read which we get the field name from
var reader = GetNativeLayoutInfoReader(remainingSignature);
var parser = new NativeParser(reader, remainingSignature.NativeLayoutOffset);
fieldName = parser.GetString();
return(true);
}
/// <summary>
/// Locate the containing module for a method and try to resolve its name based on start address.
/// </summary>
public static string GetMethodNameFromStartAddressIfAvailable(IntPtr methodStartAddress)
{
IntPtr moduleStartAddress = RuntimeAugments.GetOSModuleFromPointer(methodStartAddress);
int rva = (int)(methodStartAddress.ToInt64() - moduleStartAddress.ToInt64());
foreach (TypeManagerHandle handle in ModuleList.Enumerate())
{
if (handle.OsModuleBase == moduleStartAddress)
{
string name = _perModuleMethodNameResolverHashtable.GetOrCreateValue(handle.GetIntPtrUNSAFE()).GetMethodNameFromRvaIfAvailable(rva);
if (name != null)
{
return(name);
}
}
}
return(null);
}
/// <summary>
/// Locate and lazily load debug info for the native app module overlapping given
/// virtual address.
/// </summary>
/// <param name="ip">Instruction pointer address (code address for the lookup)</param>
/// <param name="rva">Output VA relative to module base</param>
private static IDiaSession GetDiaSession(IntPtr ip, out int rva)
{
if (ip == IntPtr.Zero)
{
rva = -1;
return(null);
}
IntPtr moduleBase = RuntimeAugments.GetOSModuleFromPointer(ip);
if (moduleBase == IntPtr.Zero)
{
rva = -1;
return(null);
}
rva = (int)(ip.ToInt64() - moduleBase.ToInt64());
if (s_loadedModules == null)
{
// Lazily create the parallel arrays s_loadedModules and s_perModuleDebugInfo
int moduleCount = RuntimeAugments.GetLoadedOSModules(null);
s_loadedModules = new IntPtr[moduleCount];
s_perModuleDebugInfo = new IDiaSession[moduleCount];
// Actually read the module addresses into the array
RuntimeAugments.GetLoadedOSModules(s_loadedModules);
}
// Locate module index based on base address
int moduleIndex = s_loadedModules.Length;
do
{
if (--moduleIndex < 0)
{
return(null);
}
}while(s_loadedModules[moduleIndex] != moduleBase);
IDiaSession diaSession = s_perModuleDebugInfo[moduleIndex];
if (diaSession != null)
{
return(diaSession);
}
string modulePath = RuntimeAugments.TryGetFullPathToApplicationModule(moduleBase);
if (modulePath == null)
{
return(null);
}
int indexOfLastDot = modulePath.LastIndexOf('.');
if (indexOfLastDot == -1)
{
return(null);
}
IDiaDataSource diaDataSource = GetDiaDataSource();
if (diaDataSource == null)
{
return(null);
}
// Look for .pdb next to .exe / dll - if it's not there, bail.
String pdbPath = modulePath.Substring(0, indexOfLastDot) + ".pdb";
int hr = diaDataSource.LoadDataFromPdb(pdbPath);
if (hr != S_OK)
{
return(null);
}
hr = diaDataSource.OpenSession(out diaSession);
if (hr != S_OK)
{
return(null);
}
s_perModuleDebugInfo[moduleIndex] = diaSession;
return(diaSession);
}
/// <summary>
/// Locate and lazily load debug info for the native app module overlapping given
/// virtual address.
/// </summary>
/// <param name="ip">Instruction pointer address (code address for the lookup)</param>
/// <param name="rva">Output VA relative to module base</param>
private static IDiaSession GetDiaSession(IntPtr ip, out int rva)
{
if (ip == IntPtr.Zero)
{
rva = -1;
return(null);
}
IntPtr moduleBase = RuntimeAugments.GetOSModuleFromPointer(ip);
if (moduleBase == IntPtr.Zero)
{
rva = -1;
return(null);
}
rva = (int)(ip.ToInt64() - moduleBase.ToInt64());
if (s_loadedModules == null)
{
// Lazily create the map from module bases to debug info
s_loadedModules = new Dictionary <IntPtr, IDiaSession>();
}
// Locate module index based on base address
IDiaSession diaSession;
if (s_loadedModules.TryGetValue(moduleBase, out diaSession))
{
return(diaSession);
}
string modulePath = RuntimeAugments.TryGetFullPathToApplicationModule(moduleBase);
if (modulePath == null)
{
return(null);
}
int indexOfLastDot = modulePath.LastIndexOf('.');
if (indexOfLastDot == -1)
{
return(null);
}
IDiaDataSource diaDataSource = GetDiaDataSource();
if (diaDataSource == null)
{
return(null);
}
// Look for .pdb next to .exe / dll - if it's not there, bail.
String pdbPath = modulePath.Substring(0, indexOfLastDot) + ".pdb";
int hr = diaDataSource.LoadDataFromPdb(pdbPath);
if (hr != S_OK)
{
return(null);
}
hr = diaDataSource.OpenSession(out diaSession);
if (hr != S_OK)
{
return(null);
}
s_loadedModules.Add(moduleBase, diaSession);
return(diaSession);
}