Add ELF loader to load the executables.
(cherry picked from commit 8c9ca414a7ed05c3530973c63496e477e9ca5eb7)
Conflicts:
src/compiler.cc
Change-Id: I950749625d5b266990c617e2d8cea688fbdc11fb
diff --git a/src/compiler_llvm/elf_loader.cc b/src/compiler_llvm/elf_loader.cc
new file mode 100644
index 0000000..f309b82
--- /dev/null
+++ b/src/compiler_llvm/elf_loader.cc
@@ -0,0 +1,87 @@
+/*
+ * 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 "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 byte* image, size_t size) {
+ if (elf_idx < executables_.size() && executables_[elf_idx] != NULL) {
+ return false;
+ }
+
+ if (elf_idx >= executables_.size()) {
+ executables_.resize(elf_idx + 1);
+ }
+
+ RSExecRef executable =
+ rsloaderCreateExec(reinterpret_cast<const unsigned char*>(image),
+ size, art_find_runtime_support_func, NULL);
+
+ if (executable == NULL) {
+ LOG(WARNING) << "Failed to load ELF image: " << image << " size: " << 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