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x64 JIT: Allocate constant data outside of the guest heap.

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This commit is contained in:
Dr. Chat
2016-08-18 18:26:55 -05:00
parent 784e6a7593
commit e3fdb08ad7
5 changed files with 127 additions and 93 deletions
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9
src/xenia/cpu/backend/x64/x64_backend.cc
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@@ -41,7 +41,7 @@ class X64ThunkEmitter : public X64Emitter {
};
X64Backend::X64Backend(Processor* processor)
: Backend(processor), code_cache_(nullptr), emitter_data_(0) {
: Backend(processor), code_cache_(nullptr) {
if (cs_open(CS_ARCH_X86, CS_MODE_64, &capstone_handle_) != CS_ERR_OK) {
assert_always("Failed to initialize capstone");
}
@@ -51,14 +51,11 @@ X64Backend::X64Backend(Processor* processor)
}
X64Backend::~X64Backend() {
if (emitter_data_) {
processor()->memory()->SystemHeapFree(emitter_data_);
emitter_data_ = 0;
}
if (capstone_handle_) {
cs_close(&capstone_handle_);
}
X64Emitter::FreeConstData(emitter_data_);
ExceptionHandler::Uninstall(&ExceptionCallbackThunk, this);
}
@@ -114,7 +111,7 @@ bool X64Backend::Initialize() {
code_cache_->CommitExecutableRange(0x9FFF0000, 0x9FFFFFFF);
// Allocate emitter constant data.
emitter_data_ = X64Emitter::PlaceData(processor()->memory());
emitter_data_ = X64Emitter::PlaceConstData();
// Setup exception callback
ExceptionHandler::Install(&ExceptionCallbackThunk, this);