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Fix casting between XThread and Thread causing pointer misalignment

This commit is contained in:
DrChat 2017-02-10 23:35:35 -06:00
parent 1334656c6a
commit 11ae05155d
3 changed files with 20 additions and 13 deletions
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6
src/xenia/cpu/thread.cc
View File

@ -13,14 +13,14 @@
namespace xe {
namespace cpu {
thread_local Thread* Thread::current_thread_tls_ = nullptr;
thread_local Thread* Thread::current_thread_ = nullptr;
Thread::Thread() {}
Thread::~Thread() {}
bool Thread::IsInThread() { return current_thread_tls_ != nullptr; }
bool Thread::IsInThread() { return current_thread_ != nullptr; }
Thread* Thread::GetCurrentThread() { return current_thread_tls_; }
Thread* Thread::GetCurrentThread() { return current_thread_; }
uint32_t Thread::GetCurrentThreadId() {
return Thread::GetCurrentThread()->thread_state()->thread_id();
}

2
src/xenia/cpu/thread.h
View File

@ -40,7 +40,7 @@ class Thread {
const std::string& thread_name() const { return thread_name_; }
protected:
static thread_local Thread* current_thread_tls_;
thread_local static Thread* current_thread_;
ThreadState* thread_state_ = nullptr;
std::unique_ptr<xe::threading::Thread> thread_ = nullptr;

25
src/xenia/kernel/xthread.cc
View File

@ -101,14 +101,16 @@ XThread::~XThread() {
}
}
thread_local XThread* current_xthread_tls_ = nullptr;
bool XThread::IsInThread() { return Thread::IsInThread(); }
bool XThread::IsInThread(XThread* other) {
return current_thread_tls_ == other;
return current_xthread_tls_ == other;
}
XThread* XThread::GetCurrentThread() {
XThread* thread = reinterpret_cast<XThread*>(current_thread_tls_);
XThread* thread = reinterpret_cast<XThread*>(current_xthread_tls_);
if (!thread) {
assert_always("Attempting to use kernel stuff from a non-kernel thread");
}
@ -370,17 +372,19 @@ X_STATUS XThread::Create() {
xe::threading::set_current_thread_id(handle());
// Set name immediately, if we have one.
thread_->set_name(name());
thread_->set_name(thread_name_);
// Profiler needs to know about the thread.
xe::Profiler::ThreadEnter(name().c_str());
xe::Profiler::ThreadEnter(thread_name_.c_str());
// Execute user code.
current_thread_tls_ = this;
current_xthread_tls_ = this;
current_thread_ = this;
running_ = true;
Execute();
running_ = false;
current_thread_tls_ = nullptr;
current_thread_ = nullptr;
current_xthread_tls_ = nullptr;
xe::Profiler::ThreadExit();
@ -439,7 +443,8 @@ X_STATUS XThread::Exit(int exit_code) {
emulator()->processor()->OnThreadExit(thread_id_);
// NOTE: unless PlatformExit fails, expect it to never return!
current_thread_tls_ = nullptr;
current_xthread_tls_ = nullptr;
current_thread_ = nullptr;
xe::Profiler::ThreadExit();
running_ = false;
@ -989,7 +994,8 @@ object_ref<XThread> XThread::Restore(KernelState* kernel_state,
Clock::SetGuestTickCount(state.tick_count_);
Clock::SetGuestSystemTime(state.system_time_);
current_thread_tls_ = thread;
current_xthread_tls_ = thread;
current_thread_ = thread;
// Acquire any mutants
for (auto mutant : thread->pending_mutant_acquires_) {
@ -1005,7 +1011,8 @@ object_ref<XThread> XThread::Restore(KernelState* kernel_state,
uint32_t pc = state.context.pc;
thread->kernel_state_->processor()->ExecuteRaw(thread->thread_state_, pc);
current_thread_tls_ = nullptr;
current_thread_ = nullptr;
current_xthread_tls_ = nullptr;
xe::Profiler::ThreadExit();