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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "elf_loader.h"
#include "compiled_method.h"
#include "elf_image.h"
#include "logging.h"
#include "object.h"
#include "runtime_support_llvm.h"
#include "utils_llvm.h"
#include <android/librsloader.h>
namespace art {
namespace compiler_llvm {
ElfLoader::~ElfLoader() {
// Release every ELF object
for (size_t i = 0; i < executables_.size(); ++i) {
rsloaderDisposeExec(executables_[i]);
}
}
bool ElfLoader::LoadElfAt(size_t elf_idx, const ElfImage& elf_image) {
if (elf_idx < executables_.size() && executables_[elf_idx] != NULL) {
return false;
}
if (elf_idx >= executables_.size()) {
executables_.resize(elf_idx + 1);
}
RSExecRef executable =
rsloaderCreateExec(elf_image.begin(), elf_image.size(),
art_find_runtime_support_func, NULL);
if (executable == NULL) {
LOG(WARNING) << "Failed to load ELF"
<< " image: " << static_cast<const void*>(elf_image.begin())
<< " size: " << elf_image.size();
return false;
}
executables_[elf_idx] = executable;
return true;
}
const void* ElfLoader::GetMethodCodeAddr(size_t elf_idx,
const Method* method) const {
CHECK_LT(elf_idx, executables_.size());
CHECK(method != NULL);
return GetAddr(elf_idx, LLVMLongName(method).c_str());
}
const Method::InvokeStub* ElfLoader::
GetMethodInvokeStubAddr(size_t elf_idx, const Method* method) const {
CHECK_LT(elf_idx, executables_.size());
CHECK(method != NULL);
return reinterpret_cast<const Method::InvokeStub*>(
GetAddr(elf_idx, LLVMStubName(method).c_str()));
}
const void* ElfLoader::GetAddr(size_t elf_idx, const char* sym_name) const {
CHECK_LT(elf_idx, executables_.size());
CHECK(executables_[elf_idx] != NULL);
return rsloaderGetSymbolAddress(executables_[elf_idx], sym_name);
}
} // namespace compiler_llvm
} // namespace art