blob: 1ad71a6b42112388544b9b426f76307cbfcf6f30 [file] [log] [blame]
// Copyright 2011 Google Inc. All Rights Reserved.
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <vector>
#include "class_linker.h"
#include "class_loader.h"
#include "compiler.h"
#include "image_writer.h"
#include "oat_writer.h"
#include "runtime.h"
#include "stringpiece.h"
namespace art {
static void usage() {
fprintf(stderr,
"Usage: dex2oat [options]...\n"
"\n");
fprintf(stderr,
" --dex-file=<dex-file>: specifies a .dex file to compile. At least one .dex\n"
" file must be specified. \n"
" Example: --dex-file=/system/framework/core.jar\n"
"\n");
fprintf(stderr,
" --image=<file.art>: specifies the required output image filename.\n"
" Example: --image=/system/framework/boot.art\n"
"\n");
// TODO: remove this by inferring from --image
fprintf(stderr,
" --oat=<file.oat>: specifies the required oat filename.\n"
" Example: --image=/system/framework/boot.oat\n"
"\n");
fprintf(stderr,
" --base=<hex-address>: specifies the base address when creating a boot image.\n"
" Example: --base=0x50000000\n"
"\n");
fprintf(stderr,
" --boot-image=<file.art>: provide the image file for the boot class path.\n"
" Example: --boot-image=/system/framework/boot.art\n"
"\n");
fprintf(stderr,
" --method may be used to limit compilation to a subset of methods.\n"
" Example: --method=Ljava/lang/Object;<init>()V\n"
"\n");
fprintf(stderr,
" --host-prefix may be used to translate host paths to target paths during\n"
" cross compilation.\n"
" Example: --host-prefix=out/target/product/crespo\n"
"\n");
fprintf(stderr,
" -Xms<n> may be used to specify an initial heap size for the runtime used to\n"
" run dex2oat\n"
" Example: -Xms256m\n"
"\n");
fprintf(stderr,
" -Xmx<n> may be used to specify a maximum heap size for the runtime used to\n"
" run dex2oat\n"
" Example: -Xmx256m\n"
"\n");
exit(EXIT_FAILURE);
}
int dex2oat(int argc, char** argv) {
// Skip over argv[0].
argv++;
argc--;
if (argc == 0) {
fprintf(stderr, "no arguments specified\n");
usage();
}
std::vector<const char*> dex_filenames;
std::vector<const char*> method_names;
std::string oat_filename;
const char* image_filename = NULL;
std::string boot_image_option;
uintptr_t image_base = 0;
std::string host_prefix;
const char* Xms = NULL;
const char* Xmx = NULL;
for (int i = 0; i < argc; i++) {
const StringPiece option(argv[i]);
if (option.starts_with("--dex-file=")) {
dex_filenames.push_back(option.substr(strlen("--dex-file=")).data());
} else if (option.starts_with("--method=")) {
method_names.push_back(option.substr(strlen("--method=")).data());
} else if (option.starts_with("--oat=")) {
oat_filename = option.substr(strlen("--oat=")).data();
} else if (option.starts_with("--image=")) {
image_filename = option.substr(strlen("--image=")).data();
} else if (option.starts_with("--base=")) {
const char* image_base_str = option.substr(strlen("--base=")).data();
char* end;
image_base = strtoul(image_base_str, &end, 16);
if (end == image_base_str || *end != '\0') {
fprintf(stderr, "Failed to parse hexadecimal value for option %s\n", option.data());
usage();
}
} else if (option.starts_with("--boot-image=")) {
const char* boot_image_filename = option.substr(strlen("--boot-image=")).data();
boot_image_option.clear();
boot_image_option += "-Ximage:";
boot_image_option += boot_image_filename;
} else if (option.starts_with("--host-prefix=")) {
host_prefix = option.substr(strlen("--host-prefix=")).data();
} else if (option.starts_with("-Xms")) {
Xms = option.data();
} else if (option.starts_with("-Xmx")) {
Xmx = option.data();
} else {
fprintf(stderr, "unknown argument %s\n", option.data());
usage();
}
}
if (oat_filename == NULL) {
fprintf(stderr, "--oat file name not specified\n");
return EXIT_FAILURE;
}
if (image_filename == NULL) {
fprintf(stderr, "--image file name not specified\n");
return EXIT_FAILURE;
}
if (dex_filenames.empty()) {
fprintf(stderr, "no --dex-file values specified\n");
return EXIT_FAILURE;
}
if (boot_image_option.empty()) {
if (image_base == 0) {
fprintf(stderr, "non-zero --base not specified\n");
return EXIT_FAILURE;
}
}
Runtime::Options options;
std::string boot_class_path_string;
if (boot_image_option.empty()) {
boot_class_path_string += "-Xbootclasspath:";
for (size_t i = 0; i < dex_filenames.size()-1; i++) {
boot_class_path_string += dex_filenames[i];
boot_class_path_string += ":";
}
boot_class_path_string += dex_filenames[dex_filenames.size()-1];
options.push_back(std::make_pair(boot_class_path_string.c_str(), reinterpret_cast<void*>(NULL)));
} else {
options.push_back(std::make_pair(boot_image_option.c_str(), reinterpret_cast<void*>(NULL)));
}
if (Xms != NULL) {
options.push_back(std::make_pair(Xms, reinterpret_cast<void*>(NULL)));
}
if (Xmx != NULL) {
options.push_back(std::make_pair(Xmx, reinterpret_cast<void*>(NULL)));
}
if (!host_prefix.empty()) {
options.push_back(std::make_pair("host-prefix", host_prefix.c_str()));
}
UniquePtr<Runtime> runtime(Runtime::Create(options, false));
if (runtime.get() == NULL) {
fprintf(stderr, "could not create runtime\n");
return EXIT_FAILURE;
}
ClassLinker* class_linker = runtime->GetClassLinker();
// If we have an existing boot image, position new space after its oat file
if (Heap::GetSpaces().size() > 1) {
Space* last_image_space = Heap::GetSpaces()[Heap::GetSpaces().size()-2];
CHECK(last_image_space != NULL);
CHECK(last_image_space->IsImageSpace());
CHECK(!Heap::GetSpaces()[Heap::GetSpaces().size()-1]->IsImageSpace());
byte* oat_limit_addr = last_image_space->GetImageHeader().GetOatLimitAddr();
image_base = RoundUp(reinterpret_cast<uintptr_t>(oat_limit_addr), kPageSize);
}
// ClassLoader creation needs to come after Runtime::Create
const ClassLoader* class_loader;
if (boot_image_option.empty()) {
class_loader = NULL;
} else {
std::vector<const DexFile*> dex_files;
DexFile::OpenDexFiles(dex_filenames, dex_files, host_prefix);
for (size_t i = 0; i < dex_files.size(); i++) {
class_linker->RegisterDexFile(*dex_files[i]);
}
class_loader = PathClassLoader::Alloc(dex_files);
}
// if we loaded an existing image, we will reuse values from the image roots.
if (!runtime->HasJniStubArray()) {
runtime->SetJniStubArray(JniCompiler::CreateJniStub(kThumb2));
}
if (!runtime->HasAbstractMethodErrorStubArray()) {
runtime->SetAbstractMethodErrorStubArray(Compiler::CreateAbstractMethodErrorStub(kThumb2));
}
if (!runtime->HasResolutionStubArray(false)) {
runtime->SetResolutionStubArray(Compiler::CreateResolutionStub(kThumb2,false), false);
}
if (!runtime->HasResolutionStubArray(true)) {
runtime->SetResolutionStubArray(Compiler::CreateResolutionStub(kThumb2,true), true);
}
if (!runtime->HasCalleeSaveMethod()) {
runtime->SetCalleeSaveMethod(runtime->CreateCalleeSaveMethod(kThumb2));
}
Compiler compiler(kThumb2);
if (method_names.empty()) {
compiler.CompileAll(class_loader);
} else {
for (size_t i = 0; i < method_names.size(); i++) {
// names are actually class_descriptor + name + signature.
// example: Ljava/lang/Object;<init>()V
StringPiece method_name = method_names[i];
size_t end_of_class_descriptor = method_name.find(';');
if (end_of_class_descriptor == method_name.npos) {
fprintf(stderr, "could not find class descriptor in method %s\n", method_name.data());
return EXIT_FAILURE;
}
end_of_class_descriptor++; // want to include ;
std::string class_descriptor = method_name.substr(0, end_of_class_descriptor).ToString();
size_t end_of_name = method_name.find('(', end_of_class_descriptor);
if (end_of_name == method_name.npos) {
fprintf(stderr, "could not find start of method signature in method %s\n", method_name.data());
return EXIT_FAILURE;
}
std::string name = method_name.substr(end_of_class_descriptor,
end_of_name - end_of_class_descriptor).ToString();
std::string signature = method_name.substr(end_of_name).ToString();
Class* klass = class_linker->FindClass(class_descriptor, class_loader);
if (klass == NULL) {
fprintf(stderr, "could not find class for descriptor %s in method %s\n",
class_descriptor.c_str(), method_name.data());
return EXIT_FAILURE;
}
Method* method = klass->FindDirectMethod(name, signature);
if (method == NULL) {
method = klass->FindVirtualMethod(name, signature);
}
if (method == NULL) {
fprintf(stderr, "could not find method %s with signature %s in class %s for method argument %s\n",
name.c_str(),
signature.c_str(),
class_descriptor.c_str(),
method_name.data());
return EXIT_FAILURE;
}
compiler.CompileOne(method);
}
}
if (!OatWriter::Create(oat_filename, class_loader)) {
fprintf(stderr, "Failed to create oat file %s\n", oat_filename.c_str());
return EXIT_FAILURE;
}
ImageWriter image_writer;
if (!image_writer.Write(image_filename, image_base, oat_filename, host_prefix)) {
fprintf(stderr, "Failed to create image file %s\n", image_filename);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
} // namespace art
int main(int argc, char** argv) {
return art::dex2oat(argc, argv);
}