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Add caching support to llvm backend

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This commit is contained in:
Lachlan Sneff
2019-04-19 13:54:48 -07:00
parent ed651055f3
commit 443663aa3f
9 changed files with 141 additions and 56 deletions
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27
lib/llvm-backend/cpp/object_loader.cpp
View File

@ -175,21 +175,26 @@ WasmModule::WasmModule(
callbacks_t callbacks
) : memory_manager(std::unique_ptr<MemoryManager>(new MemoryManager(callbacks)))
{
object_file = llvm::cantFail(llvm::object::ObjectFile::createObjectFile(llvm::MemoryBufferRef(
if (auto created_object_file = llvm::object::ObjectFile::createObjectFile(llvm::MemoryBufferRef(
llvm::StringRef((const char *)object_start, object_size), "object"
)));
))) {
object_file = cantFail(std::move(created_object_file));
SymbolLookup symbol_resolver(callbacks);
runtime_dyld = std::unique_ptr<llvm::RuntimeDyld>(new llvm::RuntimeDyld(*memory_manager, symbol_resolver));
SymbolLookup symbol_resolver(callbacks);
runtime_dyld = std::unique_ptr<llvm::RuntimeDyld>(new llvm::RuntimeDyld(*memory_manager, symbol_resolver));
runtime_dyld->setProcessAllSections(true);
runtime_dyld->setProcessAllSections(true);
runtime_dyld->loadObject(*object_file);
runtime_dyld->finalizeWithMemoryManagerLocking();
runtime_dyld->loadObject(*object_file);
runtime_dyld->finalizeWithMemoryManagerLocking();
if (runtime_dyld->hasError()) {
std::cout << "RuntimeDyld error: " << (std::string)runtime_dyld->getErrorString() << std::endl;
abort();
if (runtime_dyld->hasError()) {
_init_failed = true;
return;
}
} else {
_init_failed = true;
}
}

5
lib/llvm-backend/cpp/object_loader.hh
View File

@ -152,6 +152,7 @@ struct WasmModule
void *get_func(llvm::StringRef name) const;
bool _init_failed = false;
private:
std::unique_ptr<llvm::RuntimeDyld::MemoryManager> memory_manager;
std::unique_ptr<llvm::object::ObjectFile> object_file;
@ -164,6 +165,10 @@ extern "C"
{
*module_out = new WasmModule(mem_ptr, mem_size, callbacks);
if ((*module_out)->_init_failed) {
return RESULT_OBJECT_LOAD_FAILURE;
}
return RESULT_OK;
}