135 lines
3.9 KiB
C++
135 lines
3.9 KiB
C++
/**
|
|
******************************************************************************
|
|
* Xenia : Xbox 360 Emulator Research Project *
|
|
******************************************************************************
|
|
* Copyright 2013 Ben Vanik. All rights reserved. *
|
|
* Released under the BSD license - see LICENSE in the root for more details. *
|
|
******************************************************************************
|
|
*/
|
|
|
|
#include "xenia/cpu/function.h"
|
|
|
|
#include "xenia/base/logging.h"
|
|
#include "xenia/cpu/symbol.h"
|
|
#include "xenia/cpu/thread_state.h"
|
|
|
|
namespace xe {
|
|
namespace cpu {
|
|
|
|
using xe::debug::Breakpoint;
|
|
|
|
Function::Function(Module* module, uint32_t address)
|
|
: Symbol(Symbol::Type::kFunction, module, address) {}
|
|
|
|
Function::~Function() = default;
|
|
|
|
BuiltinFunction::BuiltinFunction(Module* module, uint32_t address)
|
|
: Function(module, address) {
|
|
behavior_ = Behavior::kBuiltin;
|
|
}
|
|
|
|
BuiltinFunction::~BuiltinFunction() = default;
|
|
|
|
void BuiltinFunction::SetupBuiltin(Handler handler, void* arg0, void* arg1) {
|
|
behavior_ = Behavior::kBuiltin;
|
|
handler_ = handler;
|
|
arg0_ = arg0;
|
|
arg1_ = arg1;
|
|
}
|
|
|
|
bool BuiltinFunction::Call(ThreadState* thread_state, uint32_t return_address) {
|
|
// SCOPE_profile_cpu_f("cpu");
|
|
|
|
ThreadState* original_thread_state = ThreadState::Get();
|
|
if (original_thread_state != thread_state) {
|
|
ThreadState::Bind(thread_state);
|
|
}
|
|
|
|
assert_not_null(handler_);
|
|
handler_(thread_state->context(), arg0_, arg1_);
|
|
|
|
if (original_thread_state != thread_state) {
|
|
ThreadState::Bind(original_thread_state);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
GuestFunction::GuestFunction(Module* module, uint32_t address)
|
|
: Function(module, address) {
|
|
behavior_ = Behavior::kDefault;
|
|
}
|
|
|
|
GuestFunction::~GuestFunction() = default;
|
|
|
|
void GuestFunction::SetupExtern(ExternHandler handler) {
|
|
behavior_ = Behavior::kExtern;
|
|
extern_handler_ = handler;
|
|
}
|
|
|
|
const SourceMapEntry* GuestFunction::LookupSourceOffset(uint32_t offset) const {
|
|
// TODO(benvanik): binary search? We know the list is sorted by code order.
|
|
for (size_t i = 0; i < source_map_.size(); ++i) {
|
|
const auto& entry = source_map_[i];
|
|
if (entry.source_offset == offset) {
|
|
return &entry;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
const SourceMapEntry* GuestFunction::LookupHIROffset(uint32_t offset) const {
|
|
// TODO(benvanik): binary search? We know the list is sorted by code order.
|
|
for (size_t i = 0; i < source_map_.size(); ++i) {
|
|
const auto& entry = source_map_[i];
|
|
if (entry.hir_offset >= offset) {
|
|
return &entry;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
const SourceMapEntry* GuestFunction::LookupCodeOffset(uint32_t offset) const {
|
|
// TODO(benvanik): binary search? We know the list is sorted by code order.
|
|
for (int64_t i = source_map_.size() - 1; i >= 0; --i) {
|
|
const auto& entry = source_map_[i];
|
|
if (entry.code_offset <= offset) {
|
|
return &entry;
|
|
}
|
|
}
|
|
return source_map_.empty() ? nullptr : &source_map_[0];
|
|
}
|
|
|
|
bool GuestFunction::Call(ThreadState* thread_state, uint32_t return_address) {
|
|
// SCOPE_profile_cpu_f("cpu");
|
|
|
|
ThreadState* original_thread_state = ThreadState::Get();
|
|
if (original_thread_state != thread_state) {
|
|
ThreadState::Bind(thread_state);
|
|
}
|
|
|
|
bool result = false;
|
|
if (behavior_ == Behavior::kExtern) {
|
|
// Special handling for extern functions to speed things up (we don't
|
|
// trampoline into guest code only to trampoline back out).
|
|
if (extern_handler_) {
|
|
extern_handler_(thread_state->context(),
|
|
thread_state->context()->kernel_state);
|
|
} else {
|
|
XELOGW("undefined extern call to %.8X %s", address(), name().c_str());
|
|
result = false;
|
|
}
|
|
} else {
|
|
result = CallImpl(thread_state, return_address);
|
|
}
|
|
|
|
if (original_thread_state != thread_state) {
|
|
ThreadState::Bind(original_thread_state);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
} // namespace cpu
|
|
} // namespace xe
|