mirror of
https://github.com/microsoft/mimalloc.git
synced 2025-05-07 15:59:32 +03:00
110 lines
No EOL
3.9 KiB
C++
110 lines
No EOL
3.9 KiB
C++
/* ----------------------------------------------------------------------------
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Copyright (c) Microsoft Research
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This is free software; you can redistribute it and/or modify it under the
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terms of the MIT license. A copy of the license can be found in the file
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"LICENSE" at the root of this distribution.
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-----------------------------------------------------------------------------*/
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#include "mimalloc_windbg_utils.h"
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// Entry point for the extension
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extern "C" __declspec(dllexport) HRESULT CALLBACK DebugExtensionInitialize(PULONG version, PULONG flags) {
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UNREFERENCED_PARAMETER(flags);
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// Ensure Version is valid
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if (!version) {
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return E_INVALIDARG;
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}
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// Set the version
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*version = DEBUG_EXTENSION_VERSION(1, 0);
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// Create the debug interfaces
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HRESULT hr = DebugCreate(__uuidof(IDebugClient), (void**)&g_DebugClient);
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if (FAILED(hr)) {
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return hr;
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}
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// Query for the IDebugControl interface
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hr = g_DebugClient->QueryInterface(__uuidof(IDebugControl4), (void**)&g_DebugControl);
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if (FAILED(hr)) {
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g_DebugClient->Release();
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return hr;
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}
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// Query for the IDebugSymbols3 interface
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hr = g_DebugClient->QueryInterface(__uuidof(IDebugSymbols3), (void**)&g_DebugSymbols);
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if (FAILED(hr)) {
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g_DebugControl->Release();
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g_DebugClient->Release();
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return hr;
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}
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// Query for the IDebugDataSpaces interface
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hr = g_DebugClient->QueryInterface(__uuidof(IDebugDataSpaces), (void**)&g_DataSpaces);
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if (FAILED(hr)) {
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g_DebugSymbols->Release();
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g_DebugControl->Release();
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g_DebugClient->Release();
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return hr;
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}
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// Find mimalloc base address at startup
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hr = FindMimallocBase();
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if (FAILED(hr) || g_MiMallocBase == 0) {
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return E_FAIL; // Prevent extension from loading
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}
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// Register output callbacks
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mi_register_output(
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[](const char* msg, void* arg) {
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g_DebugControl->Output(DEBUG_OUTPUT_ERROR, msg);
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g_DebugControl->Output(DEBUG_OUTPUT_ERROR, "\n");
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},
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nullptr);
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// Print the mimalloc base address, this indicates extension was load successfully
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g_DebugControl->Output(DEBUG_OUTPUT_NORMAL, "mimalloc.dll base address found: 0x%llx\n\n", g_MiMallocBase);
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// show extension version
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const int vermajor = MI_MALLOC_VERSION / 100;
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const int verminor = (MI_MALLOC_VERSION % 100) / 10;
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const int verpatch = (MI_MALLOC_VERSION % 10);
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g_DebugControl->Output(DEBUG_OUTPUT_NORMAL, "mimalloc extension %s\n", std::format("v{}.{}.{} (built on {}, {})\n", vermajor, verminor, verpatch, __DATE__, __TIME__).c_str());
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g_DebugControl->Output(DEBUG_OUTPUT_NORMAL, "Start here:\n");
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g_DebugControl->ControlledOutput(DEBUG_OUTCTL_AMBIENT_DML, DEBUG_OUTPUT_NORMAL, "<link cmd=\"!mi_dump_options\">Dump Options</link>\n");
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g_DebugControl->ControlledOutput(DEBUG_OUTCTL_AMBIENT_DML, DEBUG_OUTPUT_NORMAL, "<link cmd=\"!mi_dump_arenas\">Dump Arenas</link>\n");
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g_DebugControl->ControlledOutput(DEBUG_OUTCTL_AMBIENT_DML, DEBUG_OUTPUT_NORMAL, "<link cmd=\"!mi_dump_stats\">Dump Statistics</link>\n");
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g_DebugControl->ControlledOutput(DEBUG_OUTCTL_AMBIENT_DML, DEBUG_OUTPUT_NORMAL, "<link cmd=\"!mi_show_help\">Show Help commands</link>\n");
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g_DebugControl->Output(DEBUG_OUTPUT_NORMAL, "\n");
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return S_OK;
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}
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// Notifies the extension that a debug event has occurred
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extern "C" __declspec(dllexport) void CALLBACK DebugExtensionNotify(ULONG notify, ULONG64 argument) {
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UNREFERENCED_PARAMETER(notify);
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UNREFERENCED_PARAMETER(argument);
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}
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// Uninitializes the extension
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extern "C" __declspec(dllexport) void CALLBACK DebugExtensionUninitialize() {
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if (g_DebugSymbols) {
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g_DebugSymbols->Release();
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g_DebugSymbols = nullptr;
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}
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if (g_DebugControl) {
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g_DebugControl->Release();
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g_DebugControl = nullptr;
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}
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if (g_DebugClient) {
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g_DebugClient->Release();
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g_DebugClient = nullptr;
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}
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} |