1d6adf7432
PR-URL: https://github.com/nodejs/node/pull/32831 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "tools/v8windbg/base/dbgext.h"
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#include <crtdbg.h>
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#include <wrl/module.h>
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#include "tools/v8windbg/base/utilities.h"
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// See
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// https://docs.microsoft.com/en-us/visualstudio/debugger/crt-debugging-techniques
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// for the memory leak and debugger reporting macros used from <crtdbg.h>
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_CrtMemState mem_old, mem_new, mem_diff;
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int original_crt_dbg_flag = 0;
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WRL::ComPtr<IDataModelManager> sp_data_model_manager;
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WRL::ComPtr<IDebugHost> sp_debug_host;
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WRL::ComPtr<IDebugControl5> sp_debug_control;
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WRL::ComPtr<IDebugHostMemory2> sp_debug_host_memory;
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WRL::ComPtr<IDebugHostSymbols> sp_debug_host_symbols;
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WRL::ComPtr<IDebugHostExtensibility> sp_debug_host_extensibility;
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extern "C" {
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HRESULT
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__stdcall DebugExtensionInitialize(PULONG /*pVersion*/, PULONG /*pFlags*/) {
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original_crt_dbg_flag = _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF);
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_CrtMemCheckpoint(&mem_old);
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WRL::ComPtr<IDebugClient> sp_debug_client;
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WRL::ComPtr<IHostDataModelAccess> sp_data_model_access;
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RETURN_IF_FAIL(DebugCreate(__uuidof(IDebugClient), &sp_debug_client));
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RETURN_IF_FAIL(sp_debug_client.As(&sp_data_model_access));
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RETURN_IF_FAIL(sp_debug_client.As(&sp_debug_control));
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RETURN_IF_FAIL(sp_data_model_access->GetDataModel(&sp_data_model_manager,
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&sp_debug_host));
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RETURN_IF_FAIL(sp_debug_host.As(&sp_debug_host_memory));
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RETURN_IF_FAIL(sp_debug_host.As(&sp_debug_host_symbols));
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RETURN_IF_FAIL(sp_debug_host.As(&sp_debug_host_extensibility));
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return CreateExtension();
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}
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void __stdcall DebugExtensionUninitialize() {
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DestroyExtension();
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sp_debug_host = nullptr;
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sp_data_model_manager = nullptr;
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sp_debug_host_memory = nullptr;
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sp_debug_host_symbols = nullptr;
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sp_debug_host_extensibility = nullptr;
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_CrtMemCheckpoint(&mem_new);
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if (_CrtMemDifference(&mem_diff, &mem_old, &mem_new)) {
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_CrtMemDumpStatistics(&mem_diff);
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}
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_CrtSetDbgFlag(original_crt_dbg_flag);
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}
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HRESULT __stdcall DebugExtensionCanUnload(void) {
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if (!WRL::Module<WRL::InProc>::GetModule().Terminate()) {
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_RPTF0(_CRT_WARN, "Failed to unload WRL\n");
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return S_FALSE;
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}
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return S_OK;
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}
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void __stdcall DebugExtensionUnload() { return; }
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} // extern "C"
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