Yaya48
c230971f07
Preserve formatted NAND boot and Wii Remote pairing, add DMA/SRAM conformance tests and a Wii comparison probe. Keep P1 profiling tools and native update A/B evidence; reject the unhelpful targeted SRAM shortcut.
88 lines
3.3 KiB
C++
88 lines
3.3 KiB
C++
// Copyright 2026 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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// A local, user-mode-only trace for validating the provider without WPR rights.
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#pragma once
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#include <cstddef>
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#include <cstring>
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#include <filesystem>
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#include <stdexcept>
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#include <string>
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#include <vector>
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#include <windows.h>
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#include <evntrace.h>
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#include "Common/PerformanceTrace.h"
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class PrivateETW
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{
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public:
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explicit PrivateETW(const char* output)
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{
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if (!output)
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return;
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const auto path = std::filesystem::absolute(output);
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if (std::filesystem::exists(path))
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throw std::runtime_error("Private ETL target already exists");
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if (!Common::PerformanceTrace::Requested())
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throw std::runtime_error("Set DOLPHIN_PERF_TRACE=1 for a private trace");
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Common::PerformanceTrace::Enabled(); // Register before starting the session.
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constexpr wchar_t name[] = L"DolphinP1LocalProbe";
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const std::wstring filename = path.wstring();
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const size_t name_size = sizeof(name);
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const size_t filename_size = (filename.size() + 1) * sizeof(wchar_t);
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m_storage.resize(sizeof(EVENT_TRACE_PROPERTIES) + name_size + filename_size);
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m_properties = reinterpret_cast<EVENT_TRACE_PROPERTIES*>(m_storage.data());
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std::memset(m_properties, 0, m_storage.size());
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m_properties->Wnode.BufferSize = static_cast<ULONG>(m_storage.size());
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m_properties->Wnode.Guid = PERF_PROVIDER;
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m_properties->Wnode.Flags = WNODE_FLAG_TRACED_GUID;
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m_properties->Wnode.ClientContext = 1; // QPC
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m_properties->BufferSize = 64;
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m_properties->MinimumBuffers = 2;
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m_properties->MaximumBuffers = 16;
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m_properties->LogFileMode = EVENT_TRACE_FILE_MODE_SEQUENTIAL | EVENT_TRACE_PRIVATE_LOGGER_MODE |
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EVENT_TRACE_PRIVATE_IN_PROC;
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m_properties->LoggerNameOffset = sizeof(EVENT_TRACE_PROPERTIES);
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m_properties->LogFileNameOffset =
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static_cast<ULONG>(sizeof(EVENT_TRACE_PROPERTIES) + name_size);
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std::memcpy(m_storage.data() + m_properties->LoggerNameOffset, name, name_size);
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std::memcpy(m_storage.data() + m_properties->LogFileNameOffset, filename.c_str(),
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filename_size);
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const ULONG started = StartTraceW(&m_handle, name, m_properties);
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if (started != ERROR_SUCCESS)
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throw std::runtime_error("Private ETW StartTrace error " + std::to_string(started));
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m_started = true;
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const ULONG enabled =
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EnableTraceEx2(m_handle, &PERF_PROVIDER, EVENT_CONTROL_CODE_ENABLE_PROVIDER,
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TRACE_LEVEL_VERBOSE, 0, 0, 0, nullptr);
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if (enabled != ERROR_SUCCESS || !Common::PerformanceTrace::Enabled())
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{
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Close();
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throw std::runtime_error("Private ETW enable error " + std::to_string(enabled));
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}
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}
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~PrivateETW() { Close(); }
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PrivateETW(const PrivateETW&) = delete;
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PrivateETW& operator=(const PrivateETW&) = delete;
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bool Close()
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{
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if (!m_started)
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return true;
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m_started = false;
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return ControlTraceW(m_handle, L"DolphinP1LocalProbe", m_properties,
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EVENT_TRACE_CONTROL_STOP) == ERROR_SUCCESS;
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}
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private:
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static constexpr GUID PERF_PROVIDER = {
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0x54ee9231, 0x28be, 0x4ab0, {0x98, 0x1e, 0xb2, 0x6f, 0x97, 0x9c, 0x56, 0xa4}};
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TRACEHANDLE m_handle = 0;
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bool m_started = false;
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EVENT_TRACE_PROPERTIES* m_properties = nullptr;
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std::vector<u8> m_storage;
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};
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