65 lines
2.1 KiB
C++
65 lines
2.1 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 2013 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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* @modified Tom Clay, 2026 - Adapted for ReXGlue runtime
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*/
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#include <cstdlib>
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#include <cstring>
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#include <rex/assert.h>
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#include <rex/kernel.h>
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#include <rex/logging.h>
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#include <rex/system/thread_state.h>
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#include <rex/thread.h>
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namespace rex::runtime {
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thread_local ThreadState* thread_state_ = nullptr;
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ThreadState::ThreadState(uint32_t thread_id, uint32_t stack_base, uint32_t pcr_address,
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memory::Memory* memory)
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: memory_(memory), pcr_address_(pcr_address), thread_id_(thread_id) {
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if (thread_id_ == UINT_MAX) {
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// System thread. Assign the system thread ID with a high bit
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// set so people know what's up.
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uint32_t system_thread_handle = rex::thread::current_thread_system_id();
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thread_id_ = 0x80000000 | system_thread_handle;
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}
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// Initialize the PPCContext (context_ already points to context_storage_)
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std::memset(context_, 0, sizeof(::PPCContext));
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// Set initial registers
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context_->r1.u64 = stack_base; // Stack pointer
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context_->r13.u64 = pcr_address; // PCR address
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// Note(tomc): the rexglue abi passes memory base via 'base' parameter to each function call,
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// so we don't need to store it in the context like JIT did.
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}
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ThreadState::~ThreadState() {
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if (thread_state_ == this) {
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thread_state_ = nullptr;
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}
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}
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void ThreadState::Bind(ThreadState* thread_state) {
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thread_state_ = thread_state;
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}
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ThreadState* ThreadState::Get() {
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return thread_state_;
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}
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uint32_t ThreadState::GetThreadID() {
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auto* thread_state = Get();
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return thread_state ? thread_state->thread_id_ : 0xFFFFFFFF;
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}
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} // namespace rex::runtime
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