113 lines
2.6 KiB
C++
113 lines
2.6 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 <alloy/runtime/instrument.h>
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#include <alloy/memory.h>
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#include <alloy/runtime/function.h>
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#include <alloy/runtime/runtime.h>
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namespace alloy {
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namespace runtime {
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Instrument::Instrument(Runtime* runtime)
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: runtime_(runtime), memory_(runtime->memory()), is_attached_(false) {}
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Instrument::~Instrument() {
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if (is_attached_) {
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Detach();
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}
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}
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bool Instrument::Attach() {
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if (is_attached_) {
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return false;
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}
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// runtime->AttachInstrument(this);
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is_attached_ = true;
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return true;
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}
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bool Instrument::Detach() {
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if (!is_attached_) {
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return false;
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}
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is_attached_ = false;
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// runtime->DetachInstrument(this);
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return true;
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}
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FunctionInstrument::FunctionInstrument(Runtime* runtime, Function* function)
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: Instrument(runtime), target_(function) {}
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bool FunctionInstrument::Attach() {
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if (!Instrument::Attach()) {
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return false;
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}
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// Function impl attach:
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// - add instrument to list
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// JIT: transition to instrumented state
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// - rewrite enter/exit to jump to instrumentation thunk
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// - some sort of locking required?
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return true;
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}
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bool FunctionInstrument::Detach() {
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if (!Instrument::Detach()) {
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return false;
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}
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//
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return true;
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}
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void FunctionInstrument::Enter(ThreadState* thread_state) {
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// ? Placement new? How to get instance type?
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}
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void FunctionInstrument::Exit(ThreadState* thread_state) {
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//
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}
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MemoryInstrument::MemoryInstrument(Runtime* runtime, uint64_t address,
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uint64_t end_address)
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: Instrument(runtime), address_(address), end_address_(end_address) {}
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bool MemoryInstrument::Attach() {
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if (!Instrument::Attach()) {
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return false;
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}
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// TODO(benvanik): protect memory page, catch exception
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// https://github.com/frida/frida-gum/blob/master/gum/gummemoryaccessmonitor.c
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return true;
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}
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bool MemoryInstrument::Detach() {
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if (!Instrument::Detach()) {
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return false;
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}
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//
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return true;
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}
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void MemoryInstrument::Access(ThreadState* thread_state, uint64_t address,
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AccessType type) {
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// TODO(benvanik): get thread local instance
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}
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} // namespace runtime
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} // namespace alloy
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