81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2014 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#include "xenia/debug_agent.h"
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#include <gflags/gflags.h>
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#include "poly/memory.h"
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#include "poly/string.h"
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#include "xenia/logging.h"
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DEFINE_string(trace_file, "", "Trace to the given file.");
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DEFINE_uint64(trace_capacity, 0x40000000, "Trace file capacity to allocate.");
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namespace xe {
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DebugAgent::DebugAgent(Emulator* emulator)
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: emulator_(emulator),
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file_(nullptr),
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file_mapping_(nullptr),
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trace_base_(0) {}
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DebugAgent::~DebugAgent() {
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if (trace_base_) {
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UnmapViewOfFile(trace_base_);
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}
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CloseHandle(file_mapping_);
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CloseHandle(file_);
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}
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int DebugAgent::Initialize() {
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if (!FLAGS_trace_file.empty()) {
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if (SetupTracing(FLAGS_trace_file, FLAGS_trace_capacity)) {
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XELOGE("Failed to setup tracing - out of disk space?");
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return 1;
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}
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}
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return 0;
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}
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int DebugAgent::SetupTracing(const std::string& trace_file, uint64_t capacity) {
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auto file_path = poly::to_wstring(trace_file);
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file_ = CreateFile(file_path.c_str(), GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr, CREATE_ALWAYS,
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FILE_ATTRIBUTE_NORMAL | FILE_ATTRIBUTE_TEMPORARY,
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nullptr);
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if (!file_) {
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XELOGE("Could not open trace file for writing");
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return 1;
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}
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file_mapping_ = CreateFileMapping(
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file_, nullptr, PAGE_READWRITE, static_cast<uint32_t>(capacity >> 32),
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static_cast<uint32_t>(capacity), L"Local\\xenia_xdb_trace");
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if (!file_mapping_) {
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XELOGE("Could not create trace file mapping - out of disk space?");
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return 1;
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}
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trace_base_ = MapViewOfFile(file_mapping_, FILE_MAP_WRITE, 0, 0, 0);
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if (!trace_base_) {
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XELOGE("Could not map view of trace file - out of disk space?");
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return 1;
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}
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// Store initial trace base.
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poly::store<uint64_t>(trace_base_, trace_base() + 8);
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return 0;
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}
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} // namespace xe
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