94 lines
2.5 KiB
C++
94 lines
2.5 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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#include <xenia/cpu/libjit/libjit_jit.h>
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#include <xenia/cpu/cpu-private.h>
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#include <xenia/cpu/exec_module.h>
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#include <xenia/cpu/sdb.h>
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using namespace xe;
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using namespace xe::cpu;
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using namespace xe::cpu::libjit;
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using namespace xe::cpu::sdb;
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LibjitJIT::LibjitJIT(xe_memory_ref memory, SymbolTable* sym_table) :
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JIT(memory, sym_table),
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context_(NULL), emitter_(NULL) {
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}
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LibjitJIT::~LibjitJIT() {
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delete emitter_;
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if (context_) {
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jit_context_destroy(context_);
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}
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}
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int LibjitJIT::Setup() {
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int result_code = 1;
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// Shared libjit context.
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context_ = jit_context_create();
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XEEXPECTNOTNULL(context_);
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// Create the emitter used to generate functions.
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emitter_ = new LibjitEmitter(memory_, context_);
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// Inject global functions/variables/etc.
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XEEXPECTZERO(InjectGlobals());
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result_code = 0;
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XECLEANUP:
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return result_code;
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}
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int LibjitJIT::InjectGlobals() {
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return 0;
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}
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int LibjitJIT::InitModule(ExecModule* module) {
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return 0;
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}
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int LibjitJIT::UninitModule(ExecModule* module) {
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return 0;
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}
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int LibjitJIT::Execute(xe_ppc_state_t* ppc_state, FunctionSymbol* fn_symbol) {
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XELOGCPU("Execute(%.8X): %s...", fn_symbol->start_address, fn_symbol->name());
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// Check function.
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jit_function_t jit_fn = (jit_function_t)fn_symbol->impl_value;
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if (!jit_fn) {
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// Function hasn't been prepped yet - prep it.
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if (emitter_->PrepareFunction(fn_symbol)) {
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XELOGCPU("Execute(%.8X): unable to make function %s",
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fn_symbol->start_address, fn_symbol->name());
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return 1;
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}
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jit_fn = (jit_function_t)fn_symbol->impl_value;
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XEASSERTNOTNULL(jit_fn);
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}
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// Call into the function. This will compile it if needed.
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jit_nuint lr = ppc_state->lr;
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void* args[] = {&ppc_state, &lr};
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uint64_t return_value;
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int apply_result = jit_function_apply(jit_fn, (void**)&args, &return_value);
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if (!apply_result) {
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XELOGCPU("Execute(%.8X): apply failed with %d",
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fn_symbol->start_address, apply_result);
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return 1;
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}
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return 0;
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}
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