diff options
Diffstat (limited to 'src/debug/di/windowspipeline.cpp')
| -rw-r--r-- | src/debug/di/windowspipeline.cpp | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/debug/di/windowspipeline.cpp b/src/debug/di/windowspipeline.cpp index 073a412608..c3050e3290 100644 --- a/src/debug/di/windowspipeline.cpp +++ b/src/debug/di/windowspipeline.cpp @@ -134,8 +134,36 @@ BOOL WindowsNativePipeline::DebugSetProcessKillOnExit(bool fKillOnExit) // Enforces the bit set in code:WindowsNativePipeline::DebugSetProcessKillOnExit void WindowsNativePipeline::UpdateDebugSetProcessKillOnExit() { +#if !defined(FEATURE_CORESYSTEM) + // Late bind to DebugSetProcessKillOnExit - WinXP and above only + HModuleHolder hKernel32; + hKernel32 = WszLoadLibrary(W("kernel32")); + SIMPLIFYING_ASSUMPTION(hKernel32 != NULL); + if (hKernel32 == NULL) + return; + + typedef BOOL (*DebugSetProcessKillOnExitSig) (BOOL); + DebugSetProcessKillOnExitSig pDebugSetProcessKillOnExit = + reinterpret_cast<DebugSetProcessKillOnExitSig>(GetProcAddress(hKernel32, "DebugSetProcessKillOnExit")); + + // If the API doesn't exist (eg. Win2k) - there isn't anything we can do, just + // silently ignore the request. + if (pDebugSetProcessKillOnExit == NULL) + return; + + BOOL ret = pDebugSetProcessKillOnExit(m_fKillOnExit); + + // Not a good failure path here. + // 1) This shouldn't fail. + // 2) Even if it does, this is likely called after the debuggee + // has already been created, and if this API fails, most scenarios will + // be unaffected, so we don't want to fail the overall debugging session. + SIMPLIFYING_ASSUMPTION(ret); + +#else // The API doesn't exit on CoreSystem, just return return; +#endif } // Create an process under the debugger. @@ -221,20 +249,69 @@ HRESULT WindowsNativePipeline::DebugActiveProcess(MachineInfo machineInfo, DWORD // Determine (if possible) whether a debugger is attached to the target process HRESULT WindowsNativePipeline::IsRemoteDebuggerPresent(DWORD processId, BOOL* pfDebuggerPresent) { +#if !defined(FEATURE_CORESYSTEM) + + // Get a process handle for the process ID. + HandleHolder hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processId); + if (hProc == NULL) + return HRESULT_FROM_GetLastError(); + + // Delay-bind to CheckRemoteDebuggerPresent - WinXP SP1 and above only + HModuleHolder hKernel32; + hKernel32 = WszLoadLibrary(W("kernel32")); + if (hKernel32 == NULL) + return HRESULT_FROM_GetLastError(); + + typedef BOOL (*CheckRemoteDebuggerPresentSig) (HANDLE, PBOOL); + CheckRemoteDebuggerPresentSig pCheckRemoteDebuggerPresent = + reinterpret_cast<CheckRemoteDebuggerPresentSig>(GetProcAddress(hKernel32, "CheckRemoteDebuggerPresent")); + if (pCheckRemoteDebuggerPresent == NULL) + return HRESULT_FROM_GetLastError(); + + // API exists - call it + if (!pCheckRemoteDebuggerPresent(hProc, pfDebuggerPresent)) + return HRESULT_FROM_GetLastError(); + + return S_OK; +#else //CoreSystem doesn't have this API return E_FAIL; +#endif } // Detach HRESULT WindowsNativePipeline::DebugActiveProcessStop(DWORD processId) { +#if !defined(FEATURE_CORESYSTEM) + // Late-bind to DebugActiveProcessStop since it's WinXP and above only + HModuleHolder hKernel32; + hKernel32 = WszLoadLibrary(W("kernel32")); + if (hKernel32 == NULL) + return HRESULT_FROM_GetLastError(); + + typedef BOOL (*DebugActiveProcessStopSig) (DWORD); + DebugActiveProcessStopSig pDebugActiveProcessStop = + reinterpret_cast<DebugActiveProcessStopSig>(GetProcAddress(hKernel32, "DebugActiveProcessStop")); + + // Win2K will fail here - can't find DebugActiveProcessStop + if (pDebugActiveProcessStop == NULL) + return HRESULT_FROM_GetLastError(); + + // Ok, the API exists, call it + if (!pDebugActiveProcessStop(processId)) + { + // Detach itself failed + return HRESULT_FROM_GetLastError(); + } +#else // The API exists, call it if (!::DebugActiveProcessStop(processId)) { // Detach itself failed return HRESULT_FROM_GetLastError(); } +#endif return S_OK; } @@ -287,6 +364,56 @@ BOOL WindowsNativePipeline::TerminateProcess(UINT32 exitCode) // Resume any suspended threads (but just once) HRESULT WindowsNativePipeline::EnsureThreadsRunning() { +#ifdef FEATURE_CORESYSTEM _ASSERTE("NYI"); return E_FAIL; +#else + _ASSERTE(m_dwProcessId != 0); + + // Take a snapshot of all running threads (similar to ShimProcess::QueueFakeThreadAttachEventsNativeOrder) + // Alternately we could return thread creation/exit in WaitForDebugEvent. But we expect this to be used + // very rarely, so no need to complicate more common codepaths. + HANDLE hThreadSnap = INVALID_HANDLE_VALUE; + THREADENTRY32 te32; + + hThreadSnap = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0); + if (hThreadSnap == INVALID_HANDLE_VALUE) + return HRESULT_FROM_GetLastError(); + + // HandleHolder doesn't deal with INVALID_HANDLE_VALUE, so we only assign if we have a legal value. + HandleHolder hSnapshotHolder(hThreadSnap); + + // Fill in the size of the structure before using it. + te32.dwSize = sizeof(THREADENTRY32); + + // Retrieve information about the first thread, and exit if unsuccessful + if (!Thread32First(hThreadSnap, &te32)) + return HRESULT_FROM_GetLastError(); + + // Now walk the thread list of the system and attempt to resume any that are part of this process + // Ignore errors - this is a best effort (but ASSERT in CHK builds since we don't expect errors + // in practice - we expect the process to be frozen at a debug event, so no races etc.) + + HRESULT hr = S_FALSE; // no thread was resumed + do + { + if (te32.th32OwnerProcessID == m_dwProcessId) + { + HandleHolder hThread = ::OpenThread(THREAD_SUSPEND_RESUME, FALSE, te32.th32ThreadID); + _ASSERTE(hThread != NULL); + if (hThread != NULL) + { + // Resume each thread exactly once (if they were suspended multiple times, + // then EnsureThreadsRunning would need to be called multiple times until it + // returned S_FALSE. + DWORD prevCount = ::ResumeThread(hThread); + _ASSERTE(prevCount >= 0); + if (prevCount >= 1) + hr = S_OK; // some thread was resumed + } + } + } while(Thread32Next(hThreadSnap, &te32)); + + return hr; +#endif } |