IDebugComPlusSymbolProvider2::LoadSymbolsWithCorModule

Applies to: Visual Studio Visual Studio for Mac

Note

This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here

Loads debug symbols given the ICorDebugModule object.

Syntax

HRESULT LoadSymbolsWithCorModule(
    ULONG32   ulAppDomainID,
    GUID      guidModule,
    ULONGLONG baseAddress,
    IUnknown* pUnkMetadataImport,
    IUnknown* pUnkCorDebugModule,
    BSTR      bstrModuleName,
    BSTR      bstrSymSearchPath
);

int LoadSymbolsWithCorModule(
    uint   ulAppDomainID,
    Guid   guidModule,
    ulong  baseAddress,
    object pUnkMetadataImport,
    object pUnkCorDebugModule,
    string bstrModuleName,
    string bstrSymSearchPath
);

Parameters

ulAppDomainID
[in] Identifier of the application domain.

guidModule
[in] Unique identifier of the module.

baseAddress
[in] Base memory address.

pUnkMetadataImport
[in] Object that contains the debug symbol metadata.

pUnkCorDebugModule
[in] Object that implements the ICorDebugModule Interface.

bstrModuleName
[in] Name of the module.

bstrSymSearchPath
[in] Path to search for the symbol file.

Return Value

If successful, returns S_OK; otherwise, returns an error code.

Example

The following example shows how to implement this method for a CDebugSymbolProvider object that exposes the IDebugComPlusSymbolProvider2 interface.

HRESULT CDebugSymbolProvider::LoadSymbolsWithCorModule(
    ULONG32 ulAppDomainID,
    GUID guidModule,
    ULONGLONG baseOffset,
    IUnknown* _pMetadata,
    IUnknown* _pCorModule,
    BSTR bstrModule,
    BSTR bstrSearchPath)
{
    EMIT_TICK_COUNT("Entry -- Loading symbols for the following target:");
    USES_CONVERSION;
    EmitTickCount(W2A(bstrModule));

    CAutoLock Lock(this);

    HRESULT hr = S_OK;
    CComPtr<IMetaDataImport> pMetadata;
    CComPtr<ICorDebugModule> pCorModule;

    CModule* pmodule = NULL;
    CModule* pmoduleNew = NULL;
    bool fAlreadyLoaded = false;
    Module_ID idModule(ulAppDomainID, guidModule);
    bool fSymbolsLoaded = false;
    DWORD dwCurrentState = 0;

    ASSERT(IsValidObjectPtr(this, CDebugSymbolProvider));
    ASSERT(IsValidInterfacePtr(_pMetadata, IUnknown));

    METHOD_ENTRY( CDebugSymbolProvider::LoadSymbol );

    IfFalseGo( _pMetadata, E_INVALIDARG );
    IfFalseGo( _pCorModule, E_INVALIDARG );

    IfFailGo( _pMetadata->QueryInterface( IID_IMetaDataImport,
                                          (void**)&pMetadata) );

    IfFailGo( _pCorModule->QueryInterface( IID_ICorDebugModule,
                                           (void**)&pCorModule) );

    ASSERT(guidModule != GUID_NULL);

    fAlreadyLoaded = GetModule( idModule, &pmodule ) == S_OK;

    IfNullGo( pmoduleNew = new CModule, E_OUTOFMEMORY );

    //
    // We are now allowing modules to be created that do not have SymReaders.
    // It is likely there are a number of corner cases being ignored
    // that will require knowledge of the hr result below.
    //
    dwCurrentState = m_pSymProvGroup ? m_pSymProvGroup->GetCurrentState() : 0;

    HRESULT hrLoad = pmoduleNew->Create( idModule,
                                         dwCurrentState,
                                         pMetadata,
                                         pCorModule,
                                         bstrModule,
                                         bstrSearchPath,
                                         baseOffset );

    if (hrLoad == S_OK)
    {
        fSymbolsLoaded = true;
    }

    // Remove the old module
    if (fAlreadyLoaded)
    {
        IfFailGo(pmoduleNew->AddEquivalentModulesFrom(pmodule));
        RemoveModule( pmodule );
    }

    IfFailGo( AddModule( pmoduleNew ) );

Error:

    RELEASE (pmodule);
    RELEASE (pmoduleNew);

    if (SUCCEEDED(hr) && !fSymbolsLoaded)
    {
        hr = hrLoad;
    }

    METHOD_EXIT( CDebugSymbolProvider::LoadSymbol, hr );
    EMIT_TICK_COUNT("Exit");
    return hr;
}

See also

• IDebugComPlusSymbolProvider2