blob: 26d00941a4eb5324e35f72403958fd9c650c90d7 [file] [log] [blame]
/*
* Copyright (C) 2011 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 <stdio.h>
#include <stdlib.h>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <map>
#include <set>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include "android-base/logging.h"
#include "android-base/parseint.h"
#include "android-base/stringprintf.h"
#include "android-base/strings.h"
#include "arch/instruction_set_features.h"
#include "art_field-inl.h"
#include "art_method-inl.h"
#include "base/bit_utils_iterator.h"
#include "base/indenter.h"
#include "base/os.h"
#include "base/safe_map.h"
#include "base/stats.h"
#include "base/stl_util.h"
#include "base/unix_file/fd_file.h"
#include "class_linker-inl.h"
#include "class_linker.h"
#include "class_root.h"
#include "compiled_method.h"
#include "debug/debug_info.h"
#include "debug/elf_debug_writer.h"
#include "debug/method_debug_info.h"
#include "dex/art_dex_file_loader.h"
#include "dex/class_accessor-inl.h"
#include "dex/code_item_accessors-inl.h"
#include "dex/descriptors_names.h"
#include "dex/dex_file-inl.h"
#include "dex/dex_instruction-inl.h"
#include "dex/string_reference.h"
#include "dex/type_lookup_table.h"
#include "dexlayout.h"
#include "disassembler.h"
#include "gc/accounting/space_bitmap-inl.h"
#include "gc/space/image_space.h"
#include "gc/space/large_object_space.h"
#include "gc/space/space-inl.h"
#include "image-inl.h"
#include "imtable-inl.h"
#include "subtype_check.h"
#include "index_bss_mapping.h"
#include "interpreter/unstarted_runtime.h"
#include "linker/buffered_output_stream.h"
#include "linker/elf_builder.h"
#include "linker/file_output_stream.h"
#include "mirror/array-inl.h"
#include "mirror/class-inl.h"
#include "mirror/dex_cache-inl.h"
#include "mirror/object-inl.h"
#include "mirror/object_array-inl.h"
#include "oat.h"
#include "oat_file-inl.h"
#include "oat_file_manager.h"
#include "scoped_thread_state_change-inl.h"
#include "stack.h"
#include "stack_map.h"
#include "thread_list.h"
#include "vdex_file.h"
#include "verifier/method_verifier.h"
#include "verifier/verifier_deps.h"
#include "well_known_classes.h"
#include <sys/stat.h>
#include "cmdline.h"
namespace art {
using android::base::StringPrintf;
const char* image_methods_descriptions_[] = {
"kResolutionMethod",
"kImtConflictMethod",
"kImtUnimplementedMethod",
"kSaveAllCalleeSavesMethod",
"kSaveRefsOnlyMethod",
"kSaveRefsAndArgsMethod",
"kSaveEverythingMethod",
"kSaveEverythingMethodForClinit",
"kSaveEverythingMethodForSuspendCheck",
};
const char* image_roots_descriptions_[] = {
"kDexCaches",
"kClassRoots",
"kOomeWhenThrowingException",
"kOomeWhenThrowingOome",
"kOomeWhenHandlingStackOverflow",
"kNoClassDefFoundError",
"kSpecialRoots",
};
// Map is so that we don't allocate multiple dex files for the same OatDexFile.
static std::map<const OatDexFile*, std::unique_ptr<const DexFile>> opened_dex_files;
const DexFile* OpenDexFile(const OatDexFile* oat_dex_file, std::string* error_msg) {
DCHECK(oat_dex_file != nullptr);
auto it = opened_dex_files.find(oat_dex_file);
if (it != opened_dex_files.end()) {
return it->second.get();
}
const DexFile* ret = oat_dex_file->OpenDexFile(error_msg).release();
opened_dex_files.emplace(oat_dex_file, std::unique_ptr<const DexFile>(ret));
return ret;
}
template <typename ElfTypes>
class OatSymbolizer final {
public:
OatSymbolizer(const OatFile* oat_file, const std::string& output_name, bool no_bits) :
oat_file_(oat_file),
builder_(nullptr),
output_name_(output_name.empty() ? "symbolized.oat" : output_name),
no_bits_(no_bits) {
}
bool Symbolize() {
const InstructionSet isa = oat_file_->GetOatHeader().GetInstructionSet();
std::unique_ptr<const InstructionSetFeatures> features = InstructionSetFeatures::FromBitmap(
isa, oat_file_->GetOatHeader().GetInstructionSetFeaturesBitmap());
std::unique_ptr<File> elf_file(OS::CreateEmptyFile(output_name_.c_str()));
if (elf_file == nullptr) {
return false;
}
std::unique_ptr<linker::BufferedOutputStream> output_stream =
std::make_unique<linker::BufferedOutputStream>(
std::make_unique<linker::FileOutputStream>(elf_file.get()));
builder_.reset(new linker::ElfBuilder<ElfTypes>(isa, features.get(), output_stream.get()));
builder_->Start();
auto* rodata = builder_->GetRoData();
auto* text = builder_->GetText();
const uint8_t* rodata_begin = oat_file_->Begin();
const size_t rodata_size = oat_file_->GetOatHeader().GetExecutableOffset();
if (!no_bits_) {
rodata->Start();
rodata->WriteFully(rodata_begin, rodata_size);
rodata->End();
}
const uint8_t* text_begin = oat_file_->Begin() + rodata_size;
const size_t text_size = oat_file_->End() - text_begin;
if (!no_bits_) {
text->Start();
text->WriteFully(text_begin, text_size);
text->End();
}
if (isa == InstructionSet::kMips || isa == InstructionSet::kMips64) {
builder_->WriteMIPSabiflagsSection();
}
builder_->PrepareDynamicSection(elf_file->GetPath(),
rodata_size,
text_size,
oat_file_->DataBimgRelRoSize(),
oat_file_->BssSize(),
oat_file_->BssMethodsOffset(),
oat_file_->BssRootsOffset(),
oat_file_->VdexSize());
builder_->WriteDynamicSection();
const OatHeader& oat_header = oat_file_->GetOatHeader();
#define DO_TRAMPOLINE(fn_name) \
if (oat_header.Get ## fn_name ## Offset() != 0) { \
debug::MethodDebugInfo info = {}; \
info.custom_name = #fn_name; \
info.isa = oat_header.GetInstructionSet(); \
info.is_code_address_text_relative = true; \
size_t code_offset = oat_header.Get ## fn_name ## Offset(); \
code_offset -= CompiledCode::CodeDelta(oat_header.GetInstructionSet()); \
info.code_address = code_offset - oat_header.GetExecutableOffset(); \
info.code_size = 0; /* The symbol lasts until the next symbol. */ \
method_debug_infos_.push_back(std::move(info)); \
}
DO_TRAMPOLINE(JniDlsymLookup);
DO_TRAMPOLINE(QuickGenericJniTrampoline);
DO_TRAMPOLINE(QuickImtConflictTrampoline);
DO_TRAMPOLINE(QuickResolutionTrampoline);
DO_TRAMPOLINE(QuickToInterpreterBridge);
#undef DO_TRAMPOLINE
Walk();
// TODO: Try to symbolize link-time thunks?
// This would require disassembling all methods to find branches outside the method code.
// TODO: Add symbols for dex bytecode in the .dex section.
debug::DebugInfo debug_info{};
debug_info.compiled_methods = ArrayRef<const debug::MethodDebugInfo>(method_debug_infos_);
debug::WriteDebugInfo(builder_.get(), debug_info);
builder_->End();
bool ret_value = builder_->Good();
builder_.reset();
output_stream.reset();
if (elf_file->FlushCloseOrErase() != 0) {
return false;
}
elf_file.reset();
return ret_value;
}
void Walk() {
std::vector<const OatDexFile*> oat_dex_files = oat_file_->GetOatDexFiles();
for (size_t i = 0; i < oat_dex_files.size(); i++) {
const OatDexFile* oat_dex_file = oat_dex_files[i];
CHECK(oat_dex_file != nullptr);
WalkOatDexFile(oat_dex_file);
}
}
void WalkOatDexFile(const OatDexFile* oat_dex_file) {
std::string error_msg;
const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg);
if (dex_file == nullptr) {
return;
}
for (size_t class_def_index = 0;
class_def_index < dex_file->NumClassDefs();
class_def_index++) {
const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index);
OatClassType type = oat_class.GetType();
switch (type) {
case kOatClassAllCompiled:
case kOatClassSomeCompiled:
WalkOatClass(oat_class, *dex_file, class_def_index);
break;
case kOatClassNoneCompiled:
case kOatClassMax:
// Ignore.
break;
}
}
}
void WalkOatClass(const OatFile::OatClass& oat_class,
const DexFile& dex_file,
uint32_t class_def_index) {
ClassAccessor accessor(dex_file, class_def_index);
// Note: even if this is an interface or a native class, we still have to walk it, as there
// might be a static initializer.
uint32_t class_method_idx = 0;
for (const ClassAccessor::Method& method : accessor.GetMethods()) {
WalkOatMethod(oat_class.GetOatMethod(class_method_idx++),
dex_file,
class_def_index,
method.GetIndex(),
method.GetCodeItem(),
method.GetAccessFlags());
}
}
void WalkOatMethod(const OatFile::OatMethod& oat_method,
const DexFile& dex_file,
uint32_t class_def_index,
uint32_t dex_method_index,
const dex::CodeItem* code_item,
uint32_t method_access_flags) {
if ((method_access_flags & kAccAbstract) != 0) {
// Abstract method, no code.
return;
}
const OatHeader& oat_header = oat_file_->GetOatHeader();
const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader();
if (method_header == nullptr || method_header->GetCodeSize() == 0) {
// No code.
return;
}
uint32_t entry_point = oat_method.GetCodeOffset() - oat_header.GetExecutableOffset();
// Clear Thumb2 bit.
const void* code_address = EntryPointToCodePointer(reinterpret_cast<void*>(entry_point));
debug::MethodDebugInfo info = {};
DCHECK(info.custom_name.empty());
info.dex_file = &dex_file;
info.class_def_index = class_def_index;
info.dex_method_index = dex_method_index;
info.access_flags = method_access_flags;
info.code_item = code_item;
info.isa = oat_header.GetInstructionSet();
info.deduped = !seen_offsets_.insert(oat_method.GetCodeOffset()).second;
info.is_native_debuggable = oat_header.IsNativeDebuggable();
info.is_optimized = method_header->IsOptimized();
info.is_code_address_text_relative = true;
info.code_address = reinterpret_cast<uintptr_t>(code_address);
info.code_size = method_header->GetCodeSize();
info.frame_size_in_bytes = method_header->GetFrameSizeInBytes();
info.code_info = info.is_optimized ? method_header->GetOptimizedCodeInfoPtr() : nullptr;
info.cfi = ArrayRef<uint8_t>();
method_debug_infos_.push_back(info);
}
private:
const OatFile* oat_file_;
std::unique_ptr<linker::ElfBuilder<ElfTypes>> builder_;
std::vector<debug::MethodDebugInfo> method_debug_infos_;
std::unordered_set<uint32_t> seen_offsets_;
const std::string output_name_;
bool no_bits_;
};
class OatDumperOptions {
public:
OatDumperOptions(bool dump_vmap,
bool dump_code_info_stack_maps,
bool disassemble_code,
bool absolute_addresses,
const char* class_filter,
const char* method_filter,
bool list_classes,
bool list_methods,
bool dump_header_only,
const char* export_dex_location,
const char* app_image,
const char* app_oat,
uint32_t addr2instr)
: dump_vmap_(dump_vmap),
dump_code_info_stack_maps_(dump_code_info_stack_maps),
disassemble_code_(disassemble_code),
absolute_addresses_(absolute_addresses),
class_filter_(class_filter),
method_filter_(method_filter),
list_classes_(list_classes),
list_methods_(list_methods),
dump_header_only_(dump_header_only),
export_dex_location_(export_dex_location),
app_image_(app_image),
app_oat_(app_oat),
addr2instr_(addr2instr),
class_loader_(nullptr) {}
const bool dump_vmap_;
const bool dump_code_info_stack_maps_;
const bool disassemble_code_;
const bool absolute_addresses_;
const char* const class_filter_;
const char* const method_filter_;
const bool list_classes_;
const bool list_methods_;
const bool dump_header_only_;
const char* const export_dex_location_;
const char* const app_image_;
const char* const app_oat_;
uint32_t addr2instr_;
Handle<mirror::ClassLoader>* class_loader_;
};
class OatDumper {
public:
OatDumper(const OatFile& oat_file, const OatDumperOptions& options)
: oat_file_(oat_file),
oat_dex_files_(oat_file.GetOatDexFiles()),
options_(options),
resolved_addr2instr_(0),
instruction_set_(oat_file_.GetOatHeader().GetInstructionSet()),
disassembler_(Disassembler::Create(instruction_set_,
new DisassemblerOptions(
options_.absolute_addresses_,
oat_file.Begin(),
oat_file.End(),
/* can_read_literals_= */ true,
Is64BitInstructionSet(instruction_set_)
? &Thread::DumpThreadOffset<PointerSize::k64>
: &Thread::DumpThreadOffset<PointerSize::k32>))) {
CHECK(options_.class_loader_ != nullptr);
CHECK(options_.class_filter_ != nullptr);
CHECK(options_.method_filter_ != nullptr);
AddAllOffsets();
}
~OatDumper() {
delete disassembler_;
}
InstructionSet GetInstructionSet() {
return instruction_set_;
}
using DexFileUniqV = std::vector<std::unique_ptr<const DexFile>>;
bool Dump(std::ostream& os) {
bool success = true;
const OatHeader& oat_header = oat_file_.GetOatHeader();
os << "MAGIC:\n";
os << oat_header.GetMagic() << "\n\n";
os << "LOCATION:\n";
os << oat_file_.GetLocation() << "\n\n";
os << "CHECKSUM:\n";
os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum());
os << "INSTRUCTION SET:\n";
os << oat_header.GetInstructionSet() << "\n\n";
{
std::unique_ptr<const InstructionSetFeatures> features(
InstructionSetFeatures::FromBitmap(oat_header.GetInstructionSet(),
oat_header.GetInstructionSetFeaturesBitmap()));
os << "INSTRUCTION SET FEATURES:\n";
os << features->GetFeatureString() << "\n\n";
}
os << "DEX FILE COUNT:\n";
os << oat_header.GetDexFileCount() << "\n\n";
#define DUMP_OAT_HEADER_OFFSET(label, offset) \
os << label " OFFSET:\n"; \
os << StringPrintf("0x%08x", oat_header.offset()); \
if (oat_header.offset() != 0 && options_.absolute_addresses_) { \
os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \
} \
os << StringPrintf("\n\n");
DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset);
DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP",
GetJniDlsymLookupOffset);
DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE",
GetQuickGenericJniTrampolineOffset);
DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE",
GetQuickImtConflictTrampolineOffset);
DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE",
GetQuickResolutionTrampolineOffset);
DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE",
GetQuickToInterpreterBridgeOffset);
#undef DUMP_OAT_HEADER_OFFSET
// Print the key-value store.
{
os << "KEY VALUE STORE:\n";
size_t index = 0;
const char* key;
const char* value;
while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) {
os << key << " = " << value << "\n";
index++;
}
os << "\n";
}
if (options_.absolute_addresses_) {
os << "BEGIN:\n";
os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n";
os << "END:\n";
os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n";
}
os << "SIZE:\n";
os << oat_file_.Size() << "\n\n";
os << std::flush;
// If set, adjust relative address to be searched
if (options_.addr2instr_ != 0) {
resolved_addr2instr_ = options_.addr2instr_ + oat_header.GetExecutableOffset();
os << "SEARCH ADDRESS (executable offset + input):\n";
os << StringPrintf("0x%08x\n\n", resolved_addr2instr_);
}
// Dump .data.bimg.rel.ro entries.
DumpDataBimgRelRoEntries(os);
// Dump .bss summary, individual entries are dumped per dex file.
os << ".bss: ";
if (oat_file_.GetBssMethods().empty() && oat_file_.GetBssGcRoots().empty()) {
os << "empty.\n\n";
} else {
os << oat_file_.GetBssMethods().size() << " methods, ";
os << oat_file_.GetBssGcRoots().size() << " GC roots.\n\n";
}
// Dumping the dex file overview is compact enough to do even if header only.
for (size_t i = 0; i < oat_dex_files_.size(); i++) {
const OatDexFile* oat_dex_file = oat_dex_files_[i];
CHECK(oat_dex_file != nullptr);
std::string error_msg;
const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg);
if (dex_file == nullptr) {
os << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() << "': "
<< error_msg;
continue;
}
const DexLayoutSections* const layout_sections = oat_dex_file->GetDexLayoutSections();
if (layout_sections != nullptr) {
os << "Layout data\n";
os << *layout_sections;
os << "\n";
}
if (!options_.dump_header_only_) {
// Dump .bss entries.
DumpBssEntries(
os,
"ArtMethod",
oat_dex_file->GetMethodBssMapping(),
dex_file->NumMethodIds(),
static_cast<size_t>(GetInstructionSetPointerSize(instruction_set_)),
[=](uint32_t index) { return dex_file->PrettyMethod(index); });
DumpBssEntries(
os,
"Class",
oat_dex_file->GetTypeBssMapping(),
dex_file->NumTypeIds(),
sizeof(GcRoot<mirror::Class>),
[=](uint32_t index) { return dex_file->PrettyType(dex::TypeIndex(index)); });
DumpBssEntries(
os,
"String",
oat_dex_file->GetStringBssMapping(),
dex_file->NumStringIds(),
sizeof(GcRoot<mirror::Class>),
[=](uint32_t index) { return dex_file->StringDataByIdx(dex::StringIndex(index)); });
}
}
if (!options_.dump_header_only_) {
VariableIndentationOutputStream vios(&os);
VdexFile::VerifierDepsHeader vdex_header = oat_file_.GetVdexFile()->GetVerifierDepsHeader();
if (vdex_header.IsValid()) {
std::string error_msg;
std::vector<const DexFile*> dex_files;
for (size_t i = 0; i < oat_dex_files_.size(); i++) {
const DexFile* dex_file = OpenDexFile(oat_dex_files_[i], &error_msg);
if (dex_file == nullptr) {
os << "Error opening dex file: " << error_msg << std::endl;
return false;
}
dex_files.push_back(dex_file);
}
verifier::VerifierDeps deps(dex_files, oat_file_.GetVdexFile()->GetVerifierDepsData());
deps.Dump(&vios);
} else {
os << "UNRECOGNIZED vdex file, magic "
<< vdex_header.GetMagic()
<< ", verifier deps version "
<< vdex_header.GetVerifierDepsVersion()
<< ", dex section version "
<< vdex_header.GetDexSectionVersion()
<< "\n";
}
for (size_t i = 0; i < oat_dex_files_.size(); i++) {
const OatDexFile* oat_dex_file = oat_dex_files_[i];
CHECK(oat_dex_file != nullptr);
if (!DumpOatDexFile(os, *oat_dex_file)) {
success = false;
}
}
}
if (options_.export_dex_location_) {
std::string error_msg;
std::string vdex_filename = GetVdexFilename(oat_file_.GetLocation());
if (!OS::FileExists(vdex_filename.c_str())) {
os << "File " << vdex_filename.c_str() << " does not exist\n";
return false;
}
DexFileUniqV vdex_dex_files;
std::unique_ptr<const VdexFile> vdex_file = OpenVdexUnquicken(vdex_filename,
&vdex_dex_files,
&error_msg);
if (vdex_file.get() == nullptr) {
os << "Failed to open vdex file: " << error_msg << "\n";
return false;
}
if (oat_dex_files_.size() != vdex_dex_files.size()) {
os << "Dex files number in Vdex file does not match Dex files number in Oat file: "
<< vdex_dex_files.size() << " vs " << oat_dex_files_.size() << '\n';
return false;
}
size_t i = 0;
for (const auto& vdex_dex_file : vdex_dex_files) {
const OatDexFile* oat_dex_file = oat_dex_files_[i];
CHECK(oat_dex_file != nullptr);
CHECK(vdex_dex_file != nullptr);
// If a CompactDex file is detected within a Vdex container, DexLayout is used to convert
// back to a StandardDex file. Since the converted DexFile will most likely not reproduce
// the original input Dex file, the `update_checksum_` option is used to recompute the
// checksum. If the vdex container does not contain cdex resources (`used_dexlayout` is
// false), ExportDexFile() enforces a reproducible checksum verification.
if (vdex_dex_file->IsCompactDexFile()) {
Options options;
options.compact_dex_level_ = CompactDexLevel::kCompactDexLevelNone;
options.update_checksum_ = true;
DexLayout dex_layout(options, /*info=*/ nullptr, /*out_file=*/ nullptr, /*header=*/ nullptr);
std::unique_ptr<art::DexContainer> dex_container;
bool result = dex_layout.ProcessDexFile(vdex_dex_file->GetLocation().c_str(),
vdex_dex_file.get(),
i,
&dex_container,
&error_msg);
if (!result) {
os << "DexLayout failed to process Dex file: " + error_msg;
success = false;
break;
}
DexContainer::Section* main_section = dex_container->GetMainSection();
CHECK_EQ(dex_container->GetDataSection()->Size(), 0u);
const ArtDexFileLoader dex_file_loader;
std::unique_ptr<const DexFile> dex(dex_file_loader.Open(
main_section->Begin(),
main_section->Size(),
vdex_dex_file->GetLocation(),
vdex_file->GetLocationChecksum(i),
/*oat_dex_file=*/ nullptr,
/*verify=*/ false,
/*verify_checksum=*/ true,
&error_msg));
if (dex == nullptr) {
os << "Failed to load DexFile from layout container: " + error_msg;
success = false;
break;
}
if (dex->IsCompactDexFile()) {
os <<"CompactDex conversion to StandardDex failed";
success = false;
break;
}
if (!ExportDexFile(os, *oat_dex_file, dex.get(), /*used_dexlayout=*/ true)) {
success = false;
break;
}
} else {
if (!ExportDexFile(os, *oat_dex_file, vdex_dex_file.get(), /*used_dexlayout=*/ false)) {
success = false;
break;
}
}
i++;
}
}
{
os << "OAT FILE STATS:\n";
VariableIndentationOutputStream vios(&os);
stats_.AddBytes(oat_file_.Size());
DumpStats(vios, "OatFile", stats_, stats_.Value());
}
os << std::flush;
return success;
}
size_t ComputeSize(const void* oat_data) {
if (reinterpret_cast<const uint8_t*>(oat_data) < oat_file_.Begin() ||
reinterpret_cast<const uint8_t*>(oat_data) > oat_file_.End()) {
return 0; // Address not in oat file
}
uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) -
reinterpret_cast<uintptr_t>(oat_file_.Begin());
auto it = offsets_.upper_bound(begin_offset);
CHECK(it != offsets_.end());
uintptr_t end_offset = *it;
return end_offset - begin_offset;
}
InstructionSet GetOatInstructionSet() {
return oat_file_.GetOatHeader().GetInstructionSet();
}
const void* GetQuickOatCode(ArtMethod* m) REQUIRES_SHARED(Locks::mutator_lock_) {
for (size_t i = 0; i < oat_dex_files_.size(); i++) {
const OatDexFile* oat_dex_file = oat_dex_files_[i];
CHECK(oat_dex_file != nullptr);
std::string error_msg;
const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg);
if (dex_file == nullptr) {
LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation()
<< "': " << error_msg;
} else {
const char* descriptor = m->GetDeclaringClassDescriptor();
const dex::ClassDef* class_def =
OatDexFile::FindClassDef(*dex_file, descriptor, ComputeModifiedUtf8Hash(descriptor));
if (class_def != nullptr) {
uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def);
const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index);
size_t method_index = m->GetMethodIndex();
return oat_class.GetOatMethod(method_index).GetQuickCode();
}
}
}
return nullptr;
}
// Returns nullptr and updates error_msg if the Vdex file cannot be opened, otherwise all Dex
// files are fully unquickened and stored in dex_files
std::unique_ptr<const VdexFile> OpenVdexUnquicken(const std::string& vdex_filename,
/* out */ DexFileUniqV* dex_files,
/* out */ std::string* error_msg) {
std::unique_ptr<const File> file(OS::OpenFileForReading(vdex_filename.c_str()));
if (file == nullptr) {
*error_msg = "Could not open file " + vdex_filename + " for reading.";
return nullptr;
}
int64_t vdex_length = file->GetLength();
if (vdex_length == -1) {
*error_msg = "Could not read the length of file " + vdex_filename;
return nullptr;
}
MemMap mmap = MemMap::MapFile(
file->GetLength(),
PROT_READ | PROT_WRITE,
MAP_PRIVATE,
file->Fd(),
/* start offset= */ 0,
/* low_4gb= */ false,
vdex_filename.c_str(),
error_msg);
if (!mmap.IsValid()) {
*error_msg = "Failed to mmap file " + vdex_filename + ": " + *error_msg;
return nullptr;
}
std::unique_ptr<VdexFile> vdex_file(new VdexFile(std::move(mmap)));
if (!vdex_file->IsValid()) {
*error_msg = "Vdex file is not valid";
return nullptr;
}
DexFileUniqV tmp_dex_files;
if (!vdex_file->OpenAllDexFiles(&tmp_dex_files, error_msg)) {
*error_msg = "Failed to open Dex files from Vdex: " + *error_msg;
return nullptr;
}
vdex_file->Unquicken(MakeNonOwningPointerVector(tmp_dex_files),
/* decompile_return_instruction= */ true);
*dex_files = std::move(tmp_dex_files);
return vdex_file;
}
bool AddStatsObject(const void* address) {
return seen_stats_objects_.insert(address).second; // Inserted new entry.
}
void DumpStats(VariableIndentationOutputStream& os,
const std::string& name,
const Stats& stats,
double total) {
if (std::fabs(stats.Value()) > 0 || !stats.Children().empty()) {
double percent = 100.0 * stats.Value() / total;
os.Stream()
<< std::setw(40 - os.GetIndentation()) << std::left << name << std::right << " "
<< std::setw(8) << stats.Count() << " "
<< std::setw(12) << std::fixed << std::setprecision(3) << stats.Value() / KB << "KB "
<< std::setw(8) << std::fixed << std::setprecision(1) << percent << "%\n";
// Sort all children by largest value first, than by name.
std::map<std::pair<double, std::string>, const Stats&> sorted_children;
for (const auto& it : stats.Children()) {
sorted_children.emplace(std::make_pair(-it.second.Value(), it.first), it.second);
}
// Add "other" row to represent any amount not account for by the children.
Stats other;
other.AddBytes(stats.Value() - stats.SumChildrenValues(), stats.Count());
if (std::fabs(other.Value()) > 0 && !stats.Children().empty()) {
sorted_children.emplace(std::make_pair(-other.Value(), "(other)"), other);
}
// Print the data.
ScopedIndentation indent1(&os);
for (const auto& it : sorted_children) {
DumpStats(os, it.first.second, it.second, total);
}
}
}
private:
void AddAllOffsets() {
// We don't know the length of the code for each method, but we need to know where to stop
// when disassembling. What we do know is that a region of code will be followed by some other
// region, so if we keep a sorted sequence of the start of each region, we can infer the length
// of a piece of code by using upper_bound to find the start of the next region.
for (size_t i = 0; i < oat_dex_files_.size(); i++) {
const OatDexFile* oat_dex_file = oat_dex_files_[i];
CHECK(oat_dex_file != nullptr);
std::string error_msg;
const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg);
if (dex_file == nullptr) {
LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation()
<< "': " << error_msg;
continue;
}
offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader()));
for (ClassAccessor accessor : dex_file->GetClasses()) {
const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(accessor.GetClassDefIndex());
for (uint32_t class_method_index = 0;
class_method_index < accessor.NumMethods();
++class_method_index) {
AddOffsets(oat_class.GetOatMethod(class_method_index));
}
}
}
// If the last thing in the file is code for a method, there won't be an offset for the "next"
// thing. Instead of having a special case in the upper_bound code, let's just add an entry
// for the end of the file.
offsets_.insert(oat_file_.Size());
}
static uint32_t AlignCodeOffset(uint32_t maybe_thumb_offset) {
return maybe_thumb_offset & ~0x1; // TODO: Make this Thumb2 specific.
}
void AddOffsets(const OatFile::OatMethod& oat_method) {
uint32_t code_offset = oat_method.GetCodeOffset();
if (oat_file_.GetOatHeader().GetInstructionSet() == InstructionSet::kThumb2) {
code_offset &= ~0x1;
}
offsets_.insert(code_offset);
offsets_.insert(oat_method.GetVmapTableOffset());
}
bool DumpOatDexFile(std::ostream& os, const OatDexFile& oat_dex_file) {
bool success = true;
bool stop_analysis = false;
os << "OatDexFile:\n";
os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str());
os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum());
const uint8_t* const oat_file_begin = oat_dex_file.GetOatFile()->Begin();
if (oat_dex_file.GetOatFile()->ContainsDexCode()) {
const uint8_t* const vdex_file_begin = oat_dex_file.GetOatFile()->DexBegin();
// Print data range of the dex file embedded inside the corresponding vdex file.
const uint8_t* const dex_file_pointer = oat_dex_file.GetDexFilePointer();
uint32_t dex_offset = dchecked_integral_cast<uint32_t>(dex_file_pointer - vdex_file_begin);
os << StringPrintf(
"dex-file: 0x%08x..0x%08x\n",
dex_offset,
dchecked_integral_cast<uint32_t>(dex_offset + oat_dex_file.FileSize() - 1));
} else {
os << StringPrintf("dex-file not in VDEX file\n");
}
// Create the dex file early. A lot of print-out things depend on it.
std::string error_msg;
const DexFile* const dex_file = OpenDexFile(&oat_dex_file, &error_msg);
if (dex_file == nullptr) {
os << "NOT FOUND: " << error_msg << "\n\n";
os << std::flush;
return false;
}
// Print lookup table, if it exists.
if (oat_dex_file.GetLookupTableData() != nullptr) {
uint32_t table_offset = dchecked_integral_cast<uint32_t>(
oat_dex_file.GetLookupTableData() - oat_file_begin);
uint32_t table_size = TypeLookupTable::RawDataLength(dex_file->NumClassDefs());
os << StringPrintf("type-table: 0x%08x..0x%08x\n",
table_offset,
table_offset + table_size - 1);
}
VariableIndentationOutputStream vios(&os);
ScopedIndentation indent1(&vios);
for (ClassAccessor accessor : dex_file->GetClasses()) {
// TODO: Support regex
const char* descriptor = accessor.GetDescriptor();
if (DescriptorToDot(descriptor).find(options_.class_filter_) == std::string::npos) {
continue;
}
const uint16_t class_def_index = accessor.GetClassDefIndex();
uint32_t oat_class_offset = oat_dex_file.GetOatClassOffset(class_def_index);
const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index);
os << StringPrintf("%zd: %s (offset=0x%08x) (type_idx=%d)",
static_cast<ssize_t>(class_def_index),
descriptor,
oat_class_offset,
accessor.GetClassIdx().index_)
<< " (" << oat_class.GetStatus() << ")"
<< " (" << oat_class.GetType() << ")\n";
// TODO: include bitmap here if type is kOatClassSomeCompiled?
if (options_.list_classes_) {
continue;
}
if (!DumpOatClass(&vios, oat_class, *dex_file, accessor, &stop_analysis)) {
success = false;
}
if (stop_analysis) {
os << std::flush;
return success;
}
}
os << "\n";
os << std::flush;
return success;
}
// Backwards compatible Dex file export. If dex_file is nullptr (valid Vdex file not present) the
// Dex resource is extracted from the oat_dex_file and its checksum is repaired since it's not
// unquickened. Otherwise the dex_file has been fully unquickened and is expected to verify the
// original checksum.
bool ExportDexFile(std::ostream& os,
const OatDexFile& oat_dex_file,
const DexFile* dex_file,
bool used_dexlayout) {
std::string error_msg;
std::string dex_file_location = oat_dex_file.GetDexFileLocation();
// If dex_file (from unquicken or dexlayout) is not available, the output DexFile size is the
// same as the one extracted from the Oat container (pre-oreo)
size_t fsize = dex_file == nullptr ? oat_dex_file.FileSize() : dex_file->Size();
// Some quick checks just in case
if (fsize == 0 || fsize < sizeof(DexFile::Header)) {
os << "Invalid dex file\n";
return false;
}
if (dex_file == nullptr) {
// Exported bytecode is quickened (dex-to-dex transformations present)
dex_file = OpenDexFile(&oat_dex_file, &error_msg);
if (dex_file == nullptr) {
os << "Failed to open dex file '" << dex_file_location << "': " << error_msg;
return false;
}
// Recompute checksum
reinterpret_cast<DexFile::Header*>(const_cast<uint8_t*>(dex_file->Begin()))->checksum_ =
dex_file->CalculateChecksum();
} else {
// If dexlayout was used to convert CompactDex back to StandardDex, checksum will be updated
// due to `update_checksum_` option, otherwise we expect a reproducible checksum.
if (!used_dexlayout) {
// Vdex unquicken output should match original input bytecode
uint32_t orig_checksum =
reinterpret_cast<DexFile::Header*>(const_cast<uint8_t*>(dex_file->Begin()))->checksum_;
if (orig_checksum != dex_file->CalculateChecksum()) {
os << "Unexpected checksum from unquicken dex file '" << dex_file_location << "'\n";
return false;
}
}
}
// Verify output directory exists
if (!OS::DirectoryExists(options_.export_dex_location_)) {
// TODO: Extend OS::DirectoryExists if symlink support is required
os << options_.export_dex_location_ << " output directory not found or symlink\n";
return false;
}
// Beautify path names
if (dex_file_location.size() > PATH_MAX || dex_file_location.size() <= 0) {
return false;
}
std::string dex_orig_name;
size_t dex_orig_pos = dex_file_location.rfind('/');
if (dex_orig_pos == std::string::npos)
dex_orig_name = dex_file_location;
else
dex_orig_name = dex_file_location.substr(dex_orig_pos + 1);
// A more elegant approach to efficiently name user installed apps is welcome
if (dex_orig_name.size() == 8 &&
dex_orig_name.compare("base.apk") == 0 &&
dex_orig_pos != std::string::npos) {
dex_file_location.erase(dex_orig_pos, strlen("base.apk") + 1);
size_t apk_orig_pos = dex_file_location.rfind('/');
if (apk_orig_pos != std::string::npos) {
dex_orig_name = dex_file_location.substr(++apk_orig_pos);
}
}
std::string out_dex_path(options_.export_dex_location_);
if (out_dex_path.back() != '/') {
out_dex_path.append("/");
}
out_dex_path.append(dex_orig_name);
out_dex_path.append("_export.dex");
if (out_dex_path.length() > PATH_MAX) {
return false;
}
std::unique_ptr<File> file(OS::CreateEmptyFile(out_dex_path.c_str()));
if (file.get() == nullptr) {
os << "Failed to open output dex file " << out_dex_path;
return false;
}
bool success = file->WriteFully(dex_file->Begin(), fsize);
if (!success) {
os << "Failed to write dex file";
file->Erase();
return false;
}
if (file->FlushCloseOrErase() != 0) {
os << "Flush and close failed";
return false;
}
os << StringPrintf("Dex file exported at %s (%zd bytes)\n", out_dex_path.c_str(), fsize);
os << std::flush;
return true;
}
bool DumpOatClass(VariableIndentationOutputStream* vios,
const OatFile::OatClass& oat_class,
const DexFile& dex_file,
const ClassAccessor& class_accessor,
bool* stop_analysis) {
bool success = true;
bool addr_found = false;
uint32_t class_method_index = 0;
for (const ClassAccessor::Method& method : class_accessor.GetMethods()) {
if (!DumpOatMethod(vios,
dex_file.GetClassDef(class_accessor.GetClassDefIndex()),
class_method_index,
oat_class,
dex_file,
method.GetIndex(),
method.GetCodeItem(),
method.GetAccessFlags(),
&addr_found)) {
success = false;
}
if (addr_found) {
*stop_analysis = true;
return success;
}
class_method_index++;
}
vios->Stream() << std::flush;
return success;
}
static constexpr uint32_t kPrologueBytes = 16;
// When this was picked, the largest arm method was 55,256 bytes and arm64 was 50,412 bytes.
static constexpr uint32_t kMaxCodeSize = 100 * 1000;
bool DumpOatMethod(VariableIndentationOutputStream* vios,
const dex::ClassDef& class_def,
uint32_t class_method_index,
const OatFile::OatClass& oat_class,
const DexFile& dex_file,
uint32_t dex_method_idx,
const dex::CodeItem* code_item,
uint32_t method_access_flags,
bool* addr_found) {
bool success = true;
CodeItemDataAccessor code_item_accessor(dex_file, code_item);
// TODO: Support regex
std::string method_name = dex_file.GetMethodName(dex_file.GetMethodId(dex_method_idx));
if (method_name.find(options_.method_filter_) == std::string::npos) {
return success;
}
std::string pretty_method = dex_file.PrettyMethod(dex_method_idx, true);
vios->Stream() << StringPrintf("%d: %s (dex_method_idx=%d)\n",
class_method_index, pretty_method.c_str(),
dex_method_idx);
if (options_.list_methods_) {
return success;
}
uint32_t oat_method_offsets_offset = oat_class.GetOatMethodOffsetsOffset(class_method_index);
const OatMethodOffsets* oat_method_offsets = oat_class.GetOatMethodOffsets(class_method_index);
const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_index);
uint32_t code_offset = oat_method.GetCodeOffset();
uint32_t code_size = oat_method.GetQuickCodeSize();
if (resolved_addr2instr_ != 0) {
if (resolved_addr2instr_ > code_offset + code_size) {
return success;
} else {
*addr_found = true; // stop analyzing file at next iteration
}
}
// Everything below is indented at least once.
ScopedIndentation indent1(vios);
{
vios->Stream() << "DEX CODE:\n";
ScopedIndentation indent2(vios);
if (code_item_accessor.HasCodeItem()) {
for (const DexInstructionPcPair& inst : code_item_accessor) {
vios->Stream() << StringPrintf("0x%04x: ", inst.DexPc()) << inst->DumpHexLE(5)
<< StringPrintf("\t| %s\n", inst->DumpString(&dex_file).c_str());
}
}
}
std::unique_ptr<StackHandleScope<1>> hs;
std::unique_ptr<verifier::MethodVerifier> verifier;
if (Runtime::Current() != nullptr) {
// We need to have the handle scope stay live until after the verifier since the verifier has
// a handle to the dex cache from hs.
hs.reset(new StackHandleScope<1>(Thread::Current()));
vios->Stream() << "VERIFIER TYPE ANALYSIS:\n";
ScopedIndentation indent2(vios);
verifier.reset(DumpVerifier(vios, hs.get(),
dex_method_idx, &dex_file, class_def, code_item,
method_access_flags));
}
{
vios->Stream() << "OatMethodOffsets ";
if (options_.absolute_addresses_) {
vios->Stream() << StringPrintf("%p ", oat_method_offsets);
}
vios->Stream() << StringPrintf("(offset=0x%08x)\n", oat_method_offsets_offset);
if (oat_method_offsets_offset > oat_file_.Size()) {
vios->Stream() << StringPrintf(
"WARNING: oat method offsets offset 0x%08x is past end of file 0x%08zx.\n",
oat_method_offsets_offset, oat_file_.Size());
// If we can't read OatMethodOffsets, the rest of the data is dangerous to read.
vios->Stream() << std::flush;
return false;
}
ScopedIndentation indent2(vios);
vios->Stream() << StringPrintf("code_offset: 0x%08x ", code_offset);
uint32_t aligned_code_begin = AlignCodeOffset(oat_method.GetCodeOffset());
if (aligned_code_begin > oat_file_.Size()) {
vios->Stream() << StringPrintf("WARNING: "
"code offset 0x%08x is past end of file 0x%08zx.\n",
aligned_code_begin, oat_file_.Size());
success = false;
}
vios->Stream() << "\n";
}
{
vios->Stream() << "OatQuickMethodHeader ";
uint32_t method_header_offset = oat_method.GetOatQuickMethodHeaderOffset();
const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader();
if (AddStatsObject(method_header)) {
stats_.Child("QuickMethodHeader")->AddBytes(sizeof(*method_header));
}
if (options_.absolute_addresses_) {
vios->Stream() << StringPrintf("%p ", method_header);
}
vios->Stream() << StringPrintf("(offset=0x%08x)\n", method_header_offset);
if (method_header_offset > oat_file_.Size()) {
vios->Stream() << StringPrintf(
"WARNING: oat quick method header offset 0x%08x is past end of file 0x%08zx.\n",
method_header_offset, oat_file_.Size());
// If we can't read the OatQuickMethodHeader, the rest of the data is dangerous to read.
vios->Stream() << std::flush;
return false;
}
ScopedIndentation indent2(vios);
vios->Stream() << "vmap_table: ";
if (options_.absolute_addresses_) {
vios->Stream() << StringPrintf("%p ", oat_method.GetVmapTable());
}
uint32_t vmap_table_offset = method_header ==
nullptr ? 0 : method_header->GetVmapTableOffset();
vios->Stream() << StringPrintf("(offset=0x%08x)\n", vmap_table_offset);
size_t vmap_table_offset_limit =
IsMethodGeneratedByDexToDexCompiler(oat_method, code_item_accessor)
? oat_file_.GetVdexFile()->Size()
: method_header->GetCode() - oat_file_.Begin();
if (vmap_table_offset >= vmap_table_offset_limit) {
vios->Stream() << StringPrintf("WARNING: "
"vmap table offset 0x%08x is past end of file 0x%08zx. "
"vmap table offset was loaded from offset 0x%08x.\n",
vmap_table_offset,
vmap_table_offset_limit,
oat_method.GetVmapTableOffsetOffset());
success = false;
} else if (options_.dump_vmap_) {
DumpVmapData(vios, oat_method, code_item_accessor);
}
}
{
vios->Stream() << "QuickMethodFrameInfo\n";
ScopedIndentation indent2(vios);
vios->Stream()
<< StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes());
vios->Stream() << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask());
DumpSpillMask(vios->Stream(), oat_method.GetCoreSpillMask(), false);
vios->Stream() << "\n";
vios->Stream() << StringPrintf("fp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask());
DumpSpillMask(vios->Stream(), oat_method.GetFpSpillMask(), true);
vios->Stream() << "\n";
}
{
// Based on spill masks from QuickMethodFrameInfo so placed
// after it is dumped, but useful for understanding quick
// code, so dumped here.
ScopedIndentation indent2(vios);
DumpVregLocations(vios->Stream(), oat_method, code_item_accessor);
}
{
vios->Stream() << "CODE: ";
uint32_t code_size_offset = oat_method.GetQuickCodeSizeOffset();
if (code_size_offset > oat_file_.Size()) {
ScopedIndentation indent2(vios);
vios->Stream() << StringPrintf("WARNING: "
"code size offset 0x%08x is past end of file 0x%08zx.",
code_size_offset, oat_file_.Size());
success = false;
} else {
const void* code = oat_method.GetQuickCode();
uint32_t aligned_code_begin = AlignCodeOffset(code_offset);
uint64_t aligned_code_end = aligned_code_begin + code_size;
if (AddStatsObject(code)) {
stats_.Child("Code")->AddBytes(code_size);
}
if (options_.absolute_addresses_) {
vios->Stream() << StringPrintf("%p ", code);
}
vios->Stream() << StringPrintf("(code_offset=0x%08x size_offset=0x%08x size=%u)%s\n",
code_offset,
code_size_offset,
code_size,
code != nullptr ? "..." : "");
ScopedIndentation indent2(vios);
if (aligned_code_begin > oat_file_.Size()) {
vios->Stream() << StringPrintf("WARNING: "
"start of code at 0x%08x is past end of file 0x%08zx.",
aligned_code_begin, oat_file_.Size());
success = false;
} else if (aligned_code_end > oat_file_.Size()) {
vios->Stream() << StringPrintf(
"WARNING: "
"end of code at 0x%08" PRIx64 " is past end of file 0x%08zx. "
"code size is 0x%08x loaded from offset 0x%08x.\n",
aligned_code_end, oat_file_.Size(),
code_size, code_size_offset);
success = false;
if (options_.disassemble_code_) {
if (code_size_offset + kPrologueBytes <= oat_file_.Size()) {
DumpCode(vios, oat_method, code_item_accessor, true, kPrologueBytes);
}
}
} else if (code_size > kMaxCodeSize) {
vios->Stream() << StringPrintf(
"WARNING: "
"code size %d is bigger than max expected threshold of %d. "
"code size is 0x%08x loaded from offset 0x%08x.\n",
code_size, kMaxCodeSize,
code_size, code_size_offset);
success = false;
if (options_.disassemble_code_) {
if (code_size_offset + kPrologueBytes <= oat_file_.Size()) {
DumpCode(vios, oat_method, code_item_accessor, true, kPrologueBytes);
}
}
} else if (options_.disassemble_code_) {
DumpCode(vios, oat_method, code_item_accessor, !success, 0);
}
}
}
vios->Stream() << std::flush;
return success;
}
void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) {
if (spill_mask == 0) {
return;
}
os << "(";
for (size_t i = 0; i < 32; i++) {
if ((spill_mask & (1 << i)) != 0) {
if (is_float) {
os << "fr" << i;
} else {
os << "r" << i;
}
spill_mask ^= 1 << i; // clear bit
if (spill_mask != 0) {
os << ", ";
} else {
break;
}
}
}
os << ")";
}
// Display data stored at the the vmap offset of an oat method.
void DumpVmapData(VariableIndentationOutputStream* vios,
const OatFile::OatMethod& oat_method,
const CodeItemDataAccessor& code_item_accessor) {
if (IsMethodGeneratedByOptimizingCompiler(oat_method, code_item_accessor)) {
// The optimizing compiler outputs its CodeInfo data in the vmap table.
const uint8_t* raw_code_info = oat_method.GetVmapTable();
if (raw_code_info != nullptr) {
CodeInfo code_info(raw_code_info);
DCHECK(code_item_accessor.HasCodeItem());
ScopedIndentation indent1(vios);
DumpCodeInfo(vios, code_info, oat_method);
}
} else if (IsMethodGeneratedByDexToDexCompiler(oat_method, code_item_accessor)) {
// We don't encode the size in the table, so just emit that we have quickened
// information.
ScopedIndentation indent(vios);
vios->Stream() << "quickened data\n";
} else {
// Otherwise, there is nothing to display.
}
}
// Display a CodeInfo object emitted by the optimizing compiler.
void DumpCodeInfo(VariableIndentationOutputStream* vios,
const CodeInfo& code_info,
const OatFile::OatMethod& oat_method) {
code_info.Dump(vios,
oat_method.GetCodeOffset(),
options_.dump_code_info_stack_maps_,
instruction_set_);
}
static int GetOutVROffset(uint16_t out_num, InstructionSet isa) {
// According to stack model, the first out is above the Method referernce.
return static_cast<size_t>(InstructionSetPointerSize(isa)) + out_num * sizeof(uint32_t);
}
static uint32_t GetVRegOffsetFromQuickCode(const CodeItemDataAccessor& code_item_accessor,
uint32_t core_spills,
uint32_t fp_spills,
size_t frame_size,
int reg,
InstructionSet isa) {
PointerSize pointer_size = InstructionSetPointerSize(isa);
if (kIsDebugBuild) {
auto* runtime = Runtime::Current();
if (runtime != nullptr) {
CHECK_EQ(runtime->GetClassLinker()->GetImagePointerSize(), pointer_size);
}
}
DCHECK_ALIGNED(frame_size, kStackAlignment);
DCHECK_NE(reg, -1);
int spill_size = POPCOUNT(core_spills) * GetBytesPerGprSpillLocation(isa)
+ POPCOUNT(fp_spills) * GetBytesPerFprSpillLocation(isa)
+ sizeof(uint32_t); // Filler.
int num_regs = code_item_accessor.RegistersSize() - code_item_accessor.InsSize();
int temp_threshold = code_item_accessor.RegistersSize();
const int max_num_special_temps = 1;
if (reg == temp_threshold) {
// The current method pointer corresponds to special location on stack.
return 0;
} else if (reg >= temp_threshold + max_num_special_temps) {
/*
* Special temporaries may have custom locations and the logic above deals with that.
* However, non-special temporaries are placed relative to the outs.
*/
int temps_start = code_item_accessor.OutsSize() * sizeof(uint32_t)
+ static_cast<size_t>(pointer_size) /* art method */;
int relative_offset = (reg - (temp_threshold + max_num_special_temps)) * sizeof(uint32_t);
return temps_start + relative_offset;
} else if (reg < num_regs) {
int locals_start = frame_size - spill_size - num_regs * sizeof(uint32_t);
return locals_start + (reg * sizeof(uint32_t));
} else {
// Handle ins.
return frame_size + ((reg - num_regs) * sizeof(uint32_t))
+ static_cast<size_t>(pointer_size) /* art method */;
}
}
void DumpVregLocations(std::ostream& os, const OatFile::OatMethod& oat_method,
const CodeItemDataAccessor& code_item_accessor) {
if (code_item_accessor.HasCodeItem()) {
size_t num_locals_ins = code_item_accessor.RegistersSize();
size_t num_ins = code_item_accessor.InsSize();
size_t num_locals = num_locals_ins - num_ins;
size_t num_outs = code_item_accessor.OutsSize();
os << "vr_stack_locations:";
for (size_t reg = 0; reg <= num_locals_ins; reg++) {
// For readability, delimit the different kinds of VRs.
if (reg == num_locals_ins) {
os << "\n\tmethod*:";
} else if (reg == num_locals && num_ins > 0) {
os << "\n\tins:";
} else if (reg == 0 && num_locals > 0) {
os << "\n\tlocals:";
}
uint32_t offset = GetVRegOffsetFromQuickCode(code_item_accessor,
oat_method.GetCoreSpillMask(),
oat_method.GetFpSpillMask(),
oat_method.GetFrameSizeInBytes(),
reg,
GetInstructionSet());
os << " v" << reg << "[sp + #" << offset << "]";
}
for (size_t out_reg = 0; out_reg < num_outs; out_reg++) {
if (out_reg == 0) {
os << "\n\touts:";
}
uint32_t offset = GetOutVROffset(out_reg, GetInstructionSet());
os << " v" << out_reg << "[sp + #" << offset << "]";
}
os << "\n";
}
}
// Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by
// the optimizing compiler?
static bool IsMethodGeneratedByOptimizingCompiler(
const OatFile::OatMethod& oat_method,
const CodeItemDataAccessor& code_item_accessor) {
// If the native GC map is null and the Dex `code_item` is not
// null, then this method has been compiled with the optimizing
// compiler.
return oat_method.GetQuickCode() != nullptr &&
oat_method.GetVmapTable() != nullptr &&
code_item_accessor.HasCodeItem();
}
// Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by
// the dextodex compiler?
static bool IsMethodGeneratedByDexToDexCompiler(
const OatFile::OatMethod& oat_method,
const CodeItemDataAccessor& code_item_accessor) {
// If the quick code is null, the Dex `code_item` is not
// null, and the vmap table is not null, then this method has been compiled
// with the dextodex compiler.
return oat_method.GetQuickCode() == nullptr &&
oat_method.GetVmapTable() != nullptr &&
code_item_accessor.HasCodeItem();
}
verifier::MethodVerifier* DumpVerifier(VariableIndentationOutputStream* vios,
StackHandleScope<1>* hs,
uint32_t dex_method_idx,
const DexFile* dex_file,
const dex::ClassDef& class_def,
const dex::CodeItem* code_item,
uint32_t method_access_flags) {
if ((method_access_flags & kAccNative) == 0) {
ScopedObjectAccess soa(Thread::Current());
Runtime* const runtime = Runtime::Current();
DCHECK(options_.class_loader_ != nullptr);
Handle<mirror::DexCache> dex_cache = hs->NewHandle(
runtime->GetClassLinker()->RegisterDexFile(*dex_file, options_.class_loader_->Get()));
CHECK(dex_cache != nullptr);
ArtMethod* method = runtime->GetClassLinker()->ResolveMethodWithoutInvokeType(
dex_method_idx, dex_cache, *options_.class_loader_);
if (method == nullptr) {
soa.Self()->ClearException();
return nullptr;
}
return verifier::MethodVerifier::VerifyMethodAndDump(
soa.Self(), vios, dex_method_idx, dex_file, dex_cache, *options_.class_loader_,
class_def, code_item, method, method_access_flags, /* api_level= */ 0);
}
return nullptr;
}
// The StackMapsHelper provides the stack maps in the native PC order.
// For identical native PCs, the order from the CodeInfo is preserved.
class StackMapsHelper {
public:
explicit StackMapsHelper(const uint8_t* raw_code_info, InstructionSet instruction_set)
: code_info_(raw_code_info),
number_of_stack_maps_(code_info_.GetNumberOfStackMaps()),
indexes_(),
offset_(static_cast<uint32_t>(-1)),
stack_map_index_(0u),
instruction_set_(instruction_set) {
if (number_of_stack_maps_ != 0u) {
// Check if native PCs are ordered.
bool ordered = true;
StackMap last = code_info_.GetStackMapAt(0u);
for (size_t i = 1; i != number_of_stack_maps_; ++i) {
StackMap current = code_info_.GetStackMapAt(i);
if (last.GetNativePcOffset(instruction_set) >
current.GetNativePcOffset(instruction_set)) {
ordered = false;
break;
}
last = current;
}
if (!ordered) {
// Create indirection indexes for access in native PC order. We do not optimize
// for the fact that there can currently be only two separately ordered ranges,
// namely normal stack maps and catch-point stack maps.
indexes_.resize(number_of_stack_maps_);
std::iota(indexes_.begin(), indexes_.end(), 0u);
std::sort(indexes_.begin(),
indexes_.end(),
[this](size_t lhs, size_t rhs) {
StackMap left = code_info_.GetStackMapAt(lhs);
uint32_t left_pc = left.GetNativePcOffset(instruction_set_);
StackMap right = code_info_.GetStackMapAt(rhs);
uint32_t right_pc = right.GetNativePcOffset(instruction_set_);
// If the PCs are the same, compare indexes to preserve the original order.
return (left_pc < right_pc) || (left_pc == right_pc && lhs < rhs);
});
}
offset_ = GetStackMapAt(0).GetNativePcOffset(instruction_set_);
}
}
const CodeInfo& GetCodeInfo() const {
return code_info_;
}
uint32_t GetOffset() const {
return offset_;
}
StackMap GetStackMap() const {
return GetStackMapAt(stack_map_index_);
}
void Next() {
++stack_map_index_;
offset_ = (stack_map_index_ == number_of_stack_maps_)
? static_cast<uint32_t>(-1)
: GetStackMapAt(stack_map_index_).GetNativePcOffset(instruction_set_);
}
private:
StackMap GetStackMapAt(size_t i) const {
if (!indexes_.empty()) {
i = indexes_[i];
}
DCHECK_LT(i, number_of_stack_maps_);
return code_info_.GetStackMapAt(i);
}
const CodeInfo code_info_;
const size_t number_of_stack_maps_;
dchecked_vector<size_t> indexes_; // Used if stack map native PCs are not ordered.
uint32_t offset_;
size_t stack_map_index_;
const InstructionSet instruction_set_;
};
void DumpCode(VariableIndentationOutputStream* vios,
const OatFile::OatMethod& oat_method,
const CodeItemDataAccessor& code_item_accessor,
bool bad_input, size_t code_size) {
const void* quick_code = oat_method.GetQuickCode();
if (code_size == 0) {
code_size = oat_method.GetQuickCodeSize();
}
if (code_size == 0 || quick_code == nullptr) {
vios->Stream() << "NO CODE!\n";
return;
} else if (!bad_input && IsMethodGeneratedByOptimizingCompiler(oat_method,
code_item_accessor)) {
// The optimizing compiler outputs its CodeInfo data in the vmap table.
StackMapsHelper helper(oat_method.GetVmapTable(), instruction_set_);
if (AddStatsObject(oat_method.GetVmapTable())) {
helper.GetCodeInfo().CollectSizeStats(oat_method.GetVmapTable(), &stats_);
}
const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code);
size_t offset = 0;
while (offset < code_size) {
offset += disassembler_->Dump(vios->Stream(), quick_native_pc + offset);
if (offset == helper.GetOffset()) {
ScopedIndentation indent1(vios);
StackMap stack_map = helper.GetStackMap();
DCHECK(stack_map.IsValid());
stack_map.Dump(vios,
helper.GetCodeInfo(),
oat_method.GetCodeOffset(),
instruction_set_);
do {
helper.Next();
// There may be multiple stack maps at a given PC. We display only the first one.
} while (offset == helper.GetOffset());
}
DCHECK_LT(offset, helper.GetOffset());
}
} else {
const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code);
size_t offset = 0;
while (offset < code_size) {
offset += disassembler_->Dump(vios->Stream(), quick_native_pc + offset);
}
}
}
std::pair<const uint8_t*, const uint8_t*> GetBootImageLiveObjectsDataRange(gc::Heap* heap) const
REQUIRES_SHARED(Locks::mutator_lock_) {
const std::vector<gc::space::ImageSpace*>& boot_image_spaces = heap->GetBootImageSpaces();
const ImageHeader& main_header = boot_image_spaces[0]->GetImageHeader();
ObjPtr<mirror::ObjectArray<mirror::Object>> boot_image_live_objects =
ObjPtr<mirror::ObjectArray<mirror::Object>>::DownCast(
main_header.GetImageRoot<kWithoutReadBarrier>(ImageHeader::kBootImageLiveObjects));
DCHECK(boot_image_live_objects != nullptr);
DCHECK(heap->ObjectIsInBootImageSpace(boot_image_live_objects));
const uint8_t* boot_image_live_objects_address =
reinterpret_cast<const uint8_t*>(boot_image_live_objects.Ptr());
uint32_t begin_offset = mirror::ObjectArray<mirror::Object>::OffsetOfElement(0).Uint32Value();
uint32_t end_offset = mirror::ObjectArray<mirror::Object>::OffsetOfElement(
boot_image_live_objects->GetLength()).Uint32Value();
return std::make_pair(boot_image_live_objects_address + begin_offset,
boot_image_live_objects_address + end_offset);
}
void DumpDataBimgRelRoEntries(std::ostream& os) {
os << ".data.bimg.rel.ro: ";
if (oat_file_.GetBootImageRelocations().empty()) {
os << "empty.\n\n";
return;
}
os << oat_file_.GetBootImageRelocations().size() << " entries.\n";
Runtime* runtime = Runtime::Current();
if (runtime != nullptr && !runtime->GetHeap()->GetBootImageSpaces().empty()) {
const std::vector<gc::space::ImageSpace*>& boot_image_spaces =
runtime->GetHeap()->GetBootImageSpaces();
ScopedObjectAccess soa(Thread::Current());
auto live_objects = GetBootImageLiveObjectsDataRange(runtime->GetHeap());
const uint8_t* live_objects_begin = live_objects.first;
const uint8_t* live_objects_end = live_objects.second;
for (const uint32_t& object_offset : oat_file_.GetBootImageRelocations()) {
uint32_t entry_index = &object_offset - oat_file_.GetBootImageRelocations().data();
uint32_t entry_offset = entry_index * sizeof(oat_file_.GetBootImageRelocations()[0]);
os << StringPrintf(" 0x%x: 0x%08x", entry_offset, object_offset);
uint8_t* address = boot_image_spaces[0]->Begin() + object_offset;
bool found = false;
for (gc::space::ImageSpace* space : boot_image_spaces) {
uint64_t local_offset = address - space->Begin();
if (local_offset < space->GetImageHeader().GetImageSize()) {
if (space->GetImageHeader().GetObjectsSection().Contains(local_offset)) {
if (address >= live_objects_begin && address < live_objects_end) {
size_t index =
(address - live_objects_begin) / sizeof(mirror::HeapReference<mirror::Object>);
os << StringPrintf(" 0x%08x BootImageLiveObject[%zu]",
object_offset,
index);
} else {
ObjPtr<mirror::Object> o = reinterpret_cast<mirror::Object*>(address);
if (o->IsString()) {
os << " String: " << o->AsString()->ToModifiedUtf8();
} else if (o->IsClass()) {
os << " Class: " << o->AsClass()->PrettyDescriptor();
} else {
os << StringPrintf(" 0x%08x %s",
object_offset,
o->GetClass()->PrettyDescriptor().c_str());
}
}
} else if (space->GetImageHeader().GetMethodsSection().Contains(local_offset)) {
ArtMethod* m = reinterpret_cast<ArtMethod*>(address);
os << " ArtMethod: " << m->PrettyMethod();
} else {
os << StringPrintf(" 0x%08x <unexpected section in %s>",
object_offset,
space->GetImageFilename().c_str());
}
found = true;
break;
}
}
if (!found) {
os << StringPrintf(" 0x%08x <outside boot image spaces>", object_offset);
}
os << "\n";
}
} else {
for (const uint32_t& object_offset : oat_file_.GetBootImageRelocations()) {
uint32_t entry_index = &object_offset - oat_file_.GetBootImageRelocations().data();
uint32_t entry_offset = entry_index * sizeof(oat_file_.GetBootImageRelocations()[0]);
os << StringPrintf(" 0x%x: 0x%08x\n", entry_offset, object_offset);
}
}
os << "\n";
}
template <typename NameGetter>
void DumpBssEntries(std::ostream& os,
const char* slot_type,
const IndexBssMapping* mapping,
uint32_t number_of_indexes,
size_t slot_size,
NameGetter name) {
os << ".bss mapping for " << slot_type << ": ";
if (mapping == nullptr) {
os << "empty.\n";
return;
}
size_t index_bits = IndexBssMappingEntry::IndexBits(number_of_indexes);
size_t num_valid_indexes = 0u;
for (const IndexBssMappingEntry& entry : *mapping) {
num_valid_indexes += 1u + POPCOUNT(entry.GetMask(index_bits));
}
os << mapping->size() << " entries for " << num_valid_indexes << " valid indexes.\n";
os << std::hex;
for (const IndexBssMappingEntry& entry : *mapping) {
uint32_t index = entry.GetIndex(index_bits);
uint32_t mask = entry.GetMask(index_bits);
size_t bss_offset = entry.bss_offset - POPCOUNT(mask) * slot_size;
for (uint32_t n : LowToHighBits(mask)) {
size_t current_index = index - (32u - index_bits) + n;
os << " 0x" << bss_offset << ": " << slot_type << ": " << name(current_index) << "\n";
bss_offset += slot_size;
}
DCHECK_EQ(bss_offset, entry.bss_offset);
os << " 0x" << bss_offset << ": " << slot_type << ": " << name(index) << "\n";
}
os << std::dec;
}
const OatFile& oat_file_;
const std::vector<const OatDexFile*> oat_dex_files_;
const OatDumperOptions& options_;
uint32_t resolved_addr2instr_;
const InstructionSet instruction_set_;
std::set<uintptr_t> offsets_;
Disassembler* disassembler_;
Stats stats_;
std::unordered_set<const void*> seen_stats_objects_;
};
class ImageDumper {
public:
ImageDumper(std::ostream* os,
gc::space::ImageSpace& image_space,
const ImageHeader& image_header,
OatDumperOptions* oat_dumper_options)
: os_(os),
vios_(os),
indent1_(&vios_),
image_space_(image_space),
image_header_(image_header),
oat_dumper_options_(oat_dumper_options) {}
bool Dump() REQUIRES_SHARED(Locks::mutator_lock_) {
std::ostream& os = *os_;
std::ostream& indent_os = vios_.Stream();
os << "MAGIC: " << image_header_.GetMagic() << "\n\n";
os << "IMAGE LOCATION: " << image_space_.GetImageLocation() << "\n\n";
os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n";
os << "IMAGE SIZE: " << image_header_.GetImageSize() << "\n";
os << "IMAGE CHECKSUM: " << std::hex << image_header_.GetImageChecksum() << std::dec << "\n\n";
os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()) << "\n";
os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n";
os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n";
os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n";
os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n";
os << "BOOT IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetBootImageBegin())
<< "\n";
os << "BOOT IMAGE SIZE: " << image_header_.GetBootImageSize() << "\n\n";
for (size_t i = 0; i < ImageHeader::kSectionCount; ++i) {
auto section = static_cast<ImageHeader::ImageSections>(i);
os << "IMAGE SECTION " << section << ": " << image_header_.GetImageSection(section) << "\n\n";
}
{
os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots().Ptr()) << "\n";
static_assert(arraysize(image_roots_descriptions_) ==
static_cast<size_t>(ImageHeader::kImageRootsMax), "sizes must match");
DCHECK_LE(image_header_.GetImageRoots()->GetLength(), ImageHeader::kImageRootsMax);
for (int32_t i = 0, size = image_header_.GetImageRoots()->GetLength(); i != size; ++i) {
ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i);
const char* image_root_description = image_roots_descriptions_[i];
ObjPtr<mirror::Object> image_root_object = image_header_.GetImageRoot(image_root);
indent_os << StringPrintf("%s: %p\n", image_root_description, image_root_object.Ptr());
if (image_root_object != nullptr && image_root_object->IsObjectArray()) {
ObjPtr<mirror::ObjectArray<mirror::Object>> image_root_object_array
= image_root_object->AsObjectArray<mirror::Object>();
ScopedIndentation indent2(&vios_);
for (int j = 0; j < image_root_object_array->GetLength(); j++) {
mirror::Object* value = image_root_object_array->Get(j);
size_t run = 0;
for (int32_t k = j + 1; k < image_root_object_array->GetLength(); k++) {
if (value == image_root_object_array->Get(k)) {
run++;
} else {
break;
}
}
if (run == 0) {
indent_os << StringPrintf("%d: ", j);
} else {
indent_os << StringPrintf("%d to %zd: ", j, j + run);
j = j + run;
}
if (value != nullptr) {
PrettyObjectValue(indent_os, value->GetClass(), value);
} else {
indent_os << j << ": null\n";
}
}
}
}
}
{
os << "METHOD ROOTS\n";
static_assert(arraysize(image_methods_descriptions_) ==
static_cast<size_t>(ImageHeader::kImageMethodsCount), "sizes must match");
for (int i = 0; i < ImageHeader::kImageMethodsCount; i++) {
auto image_root = static_cast<ImageHeader::ImageMethod>(i);
const char* description = image_methods_descriptions_[i];
auto* image_method = image_header_.GetImageMethod(image_root);
indent_os << StringPrintf("%s: %p\n", description, image_method);
}
}
os << "\n";
Runtime* const runtime = Runtime::Current();
ClassLinker* class_linker = runtime->GetClassLinker();
std::string image_filename = image_space_.GetImageFilename();
std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename);
os << "OAT LOCATION: " << oat_location;
os << "\n";
std::string error_msg;
const OatFile* oat_file = image_space_.GetOatFile();
if (oat_file == nullptr) {
oat_file = runtime->GetOatFileManager().FindOpenedOatFileFromOatLocation(oat_location);
}
if (oat_file == nullptr) {
oat_file = OatFile::Open(/*zip_fd=*/ -1,
oat_location,
oat_location,
/*executable=*/ false,
/*low_4gb=*/ false,
/*abs_dex_location=*/ nullptr,
/*reservation=*/ nullptr,
&error_msg);
}
if (oat_file == nullptr) {
os << "OAT FILE NOT FOUND: " << error_msg << "\n";
return EXIT_FAILURE;
}
os << "\n";
stats_.oat_file_bytes = oat_file->Size();
oat_dumper_.reset(new OatDumper(*oat_file, *oat_dumper_options_));
for (const OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) {
CHECK(oat_dex_file != nullptr);
stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(),
oat_dex_file->FileSize()));
}
os << "OBJECTS:\n" << std::flush;
// Loop through the image space and dump its objects.
gc::Heap* heap = runtime->GetHeap();
Thread* self = Thread::Current();
{
{
WriterMutexLock mu(self, *Locks::heap_bitmap_lock_);
heap->FlushAllocStack();
}
// Since FlushAllocStack() above resets the (active) allocation
// stack. Need to revoke the thread-local allocation stacks that
// point into it.
ScopedThreadSuspension sts(self, kNative);
ScopedSuspendAll ssa(__FUNCTION__);
heap->RevokeAllThreadLocalAllocationStacks(self);
}
{
// Mark dex caches.
dex_caches_.clear();
{
ReaderMutexLock mu(self, *Locks::dex_lock_);
for (const ClassLinker::DexCacheData& data : class_linker->GetDexCachesData()) {
ObjPtr<mirror::DexCache> dex_cache =
ObjPtr<mirror::DexCache>::DownCast(self->DecodeJObject(data.weak_root));
if (dex_cache != nullptr) {
dex_caches_.insert(dex_cache.Ptr());
}
}
}
auto dump_visitor = [&](mirror::Object* obj) REQUIRES_SHARED(Locks::mutator_lock_) {
DumpObject(obj);
};
ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_);
// Dump the normal objects before ArtMethods.
image_space_.GetLiveBitmap()->Walk(dump_visitor);
indent_os << "\n";
// TODO: Dump fields.
// Dump methods after.
DumpArtMethodVisitor visitor(this);
image_header_.VisitPackedArtMethods(&visitor,
image_space_.Begin(),
image_header_.GetPointerSize());
// Dump the large objects separately.
heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(dump_visitor);
indent_os << "\n";
}
os << "STATS:\n" << std::flush;
std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str()));
size_t data_size = image_header_.GetDataSize(); // stored size in file.
if (file == nullptr) {
LOG(WARNING) << "Failed to find image in " << image_filename;
} else {
stats_.file_bytes = file->GetLength();
// If the image is compressed, adjust to decompressed size.
size_t uncompressed_size = image_header_.GetImageSize() - sizeof(ImageHeader);
if (image_header_.HasCompressedBlock()) {
DCHECK_EQ(uncompressed_size, data_size) << "Sizes should match for uncompressed image";
}
stats_.file_bytes += uncompressed_size - data_size;
}
size_t header_bytes = sizeof(ImageHeader);
const auto& object_section = image_header_.GetObjectsSection();
const auto& field_section = image_header_.GetFieldsSection();
const auto& method_section = image_header_.GetMethodsSection();
const auto& dex_cache_arrays_section = image_header_.GetDexCacheArraysSection();
const auto& intern_section = image_header_.GetInternedStringsSection();
const auto& class_table_section = image_header_.GetClassTableSection();
const auto& sro_section = image_header_.GetImageStringReferenceOffsetsSection();
const auto& metadata_section = image_header_.GetMetadataSection();
const auto& bitmap_section = image_header_.GetImageBitmapSection();
stats_.header_bytes = header_bytes;
// Objects are kObjectAlignment-aligned.
// CHECK_EQ(RoundUp(header_bytes, kObjectAlignment), object_section.Offset());
if (object_section.Offset() > header_bytes) {
stats_.alignment_bytes += object_section.Offset() - header_bytes;
}
// Field section is 4-byte aligned.
constexpr size_t kFieldSectionAlignment = 4U;
uint32_t end_objects = object_section.Offset() + object_section.Size();
CHECK_EQ(RoundUp(end_objects, kFieldSectionAlignment), field_section.Offset());
stats_.alignment_bytes += field_section.Offset() - end_objects;
// Method section is 4/8 byte aligned depending on target. Just check for 4-byte alignment.
uint32_t end_fields = field_section.Offset() + field_section.Size();
CHECK_ALIGNED(method_section.Offset(), 4);
stats_.alignment_bytes += method_section.Offset() - end_fields;
// Dex cache arrays section is aligned depending on the target. Just check for 4-byte alignment.
uint32_t end_methods = method_section.Offset() + method_section.Size();
CHECK_ALIGNED(dex_cache_arrays_section.Offset(), 4);
stats_.alignment_bytes += dex_cache_arrays_section.Offset() - end_methods;
// Intern table is 8-byte aligned.
uint32_t end_caches = dex_cache_arrays_section.Offset() + dex_cache_arrays_section.Size();
CHECK_EQ(RoundUp(end_caches, 8U), intern_section.Offset());
stats_.alignment_bytes += intern_section.Offset() - end_caches;
// Add space between intern table and class table.
uint32_t end_intern = intern_section.Offset() + intern_section.Size();
stats_.alignment_bytes += class_table_section.Offset() - end_intern;
// Add space between end of image data and bitmap. Expect the bitmap to be page-aligned.
const size_t bitmap_offset = sizeof(ImageHeader) + data_size;
CHECK_ALIGNED(bitmap_section.Offset(), kPageSize);
stats_.alignment_bytes += RoundUp(bitmap_offset, kPageSize) - bitmap_offset;
stats_.bitmap_bytes += bitmap_section.Size();
stats_.art_field_bytes += field_section.Size();
stats_.art_method_bytes += method_section.Size();
stats_.dex_cache_arrays_bytes += dex_cache_arrays_section.Size();
stats_.interned_strings_bytes += intern_section.Size();
stats_.class_table_bytes += class_table_section.Size();
stats_.sro_offset_bytes += sro_section.Size();
stats_.metadata_bytes += metadata_section.Size();
stats_.Dump(os, indent_os);
os << "\n";
os << std::flush;
return oat_dumper_->Dump(os);
}
private:
class DumpArtMethodVisitor : public ArtMethodVisitor {
public:
explicit DumpArtMethodVisitor(ImageDumper* image_dumper) : image_dumper_(image_dumper) {}
void Visit(ArtMethod* method) override REQUIRES_SHARED(Locks::mutator_lock_) {
std::ostream& indent_os = image_dumper_->vios_.Stream();
indent_os << method << " " << " ArtMethod: " << ArtMethod::PrettyMethod(method) << "\n";
image_dumper_->DumpMethod(method, indent_os);
indent_os << "\n";
}
private:
ImageDumper* const image_dumper_;
};
static void PrettyObjectValue(std::ostream& os,
ObjPtr<mirror::Class> type,
ObjPtr<mirror::Object> value)
REQUIRES_SHARED(Locks::mutator_lock_) {
CHECK(type != nullptr);
if (value == nullptr) {
os << StringPrintf("null %s\n", type->PrettyDescriptor().c_str());
} else if (type->IsStringClass()) {
mirror::String* string = value->AsString();
os << StringPrintf("%p String: %s\n", string,
PrintableString(string->ToModifiedUtf8().c_str()).c_str());
} else if (type->IsClassClass()) {
mirror::Class* klass = value->AsClass();
os << StringPrintf("%p Class: %s\n", klass, mirror::Class::PrettyDescriptor(klass).c_str());
} else {
os << StringPrintf("%p %s\n", value.Ptr(), type->PrettyDescriptor().c_str());
}
}
static void PrintField(std::ostream& os, ArtField* field, ObjPtr<mirror::Object> obj)
REQUIRES_SHARED(Locks::mutator_lock_) {
os << StringPrintf("%s: ", field->GetName());
switch (field->GetTypeAsPrimitiveType()) {
case Primitive::kPrimLong:
os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj));
break;
case Primitive::kPrimDouble:
os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj));
break;
case Primitive::kPrimFloat:
os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj));
break;
case Primitive::kPrimInt:
os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj));
break;
case Primitive::kPrimChar:
os << StringPrintf("%u (0x%x)\n", field->GetChar(obj), field->GetChar(obj));
break;
case Primitive::kPrimShort:
os << StringPrintf("%d (0x%x)\n", field->GetShort(obj), field->GetShort(obj));
break;
case Primitive::kPrimBoolean:
os << StringPrintf("%s (0x%x)\n", field->GetBoolean(obj) ? "true" : "false",
field->GetBoolean(obj));
break;
case Primitive::kPrimByte:
os << StringPrintf("%d (0x%x)\n", field->GetByte(obj), field->GetByte(obj));
break;
case Primitive::kPrimNot: {
// Get the value, don't compute the type unless it is non-null as we don't want
// to cause class loading.
ObjPtr<mirror::Object> value = field->GetObj(obj);
if (value == nullptr) {
os << StringPrintf("null %s\n", PrettyDescriptor(field->GetTypeDescriptor()).c_str());
} else {
// Grab the field type without causing resolution.
ObjPtr<mirror::Class> field_type = field->LookupResolvedType();
if (field_type != nullptr) {
PrettyObjectValue(os, field_type, value);
} else {
os << StringPrintf("%p %s\n",
value.Ptr(),
PrettyDescriptor(field->GetTypeDescriptor()).c_str());
}
}
break;
}
default:
os << "unexpected field type: " << field->GetTypeDescriptor() << "\n";
break;
}
}
static void DumpFields(std::ostream& os, mirror::Object* obj, ObjPtr<mirror::Class> klass)
REQUIRES_SHARED(Locks::mutator_lock_) {
ObjPtr<mirror::Class> super = klass->GetSuperClass();
if (super != nullptr) {
DumpFields(os, obj, super);
}
for (ArtField& field : klass->GetIFields()) {
PrintField(os, &field, obj);
}
}
bool InDumpSpace(const mirror::Object* object) {
return image_space_.Contains(object);
}
const void* GetQuickOatCodeBegin(ArtMethod* m) REQUIRES_SHARED(Locks::mutator_lock_) {
const void* quick_code = m->GetEntryPointFromQuickCompiledCodePtrSize(
image_header_.GetPointerSize());
if (Runtime::Current()->GetClassLinker()->IsQuickResolutionStub(quick_code)) {
quick_code = oat_dumper_->GetQuickOatCode(m);
}
if (oat_dumper_->GetInstructionSet() == InstructionSet::kThumb2) {
quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1);
}
return quick_code;
}
uint32_t GetQuickOatCodeSize(ArtMethod* m)
REQUIRES_SHARED(Locks::mutator_lock_) {
const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m));
if (oat_code_begin == nullptr) {
return 0;
}
return oat_code_begin[-1];
}
const void* GetQuickOatCodeEnd(ArtMethod* m)
REQUIRES_SHARED(Locks::mutator_lock_) {
const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m));
if (oat_code_begin == nullptr) {
return nullptr;
}
return oat_code_begin + GetQuickOatCodeSize(m);
}
void DumpObject(mirror::Object* obj) REQUIRES_SHARED(Locks::mutator_lock_) {
DCHECK(obj != nullptr);
if (!InDumpSpace(obj)) {
return;
}
size_t object_bytes = obj->SizeOf();
size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes;
stats_.object_bytes += object_bytes;
stats_.alignment_bytes += alignment_bytes;
std::ostream& os = vios_.Stream();
mirror::Class* obj_class = obj->GetClass();
if (obj_class->IsArrayClass()) {
os << StringPrintf("%p: %s length:%d\n", obj, obj_class->PrettyDescriptor().c_str(),
obj->AsArray()->GetLength());
} else if (obj->IsClass()) {
mirror::Class* klass = obj->AsClass();
os << StringPrintf("%p: java.lang.Class \"%s\" (", obj,
mirror::Class::PrettyDescriptor(klass).c_str())
<< klass->GetStatus() << ")\n";
} else if (obj_class->IsStringClass()) {
os << StringPrintf("%p: java.lang.String %s\n", obj,
PrintableString(obj->AsString()->ToModifiedUtf8().c_str()).c_str());
} else {
os << StringPrintf("%p: %s\n", obj, obj_class->PrettyDescriptor().c_str());
}
ScopedIndentation indent1(&vios_);
DumpFields(os, obj, obj_class);
const PointerSize image_pointer_size = image_header_.GetPointerSize();
if (obj->IsObjectArray()) {
auto* obj_array = obj->AsObjectArray<mirror::Object>();
for (int32_t i = 0, length = obj_array->GetLength(); i < length; i++) {
mirror::Object* value = obj_array->Get(i);
size_t run = 0;
for (int32_t j = i + 1; j < length; j++) {
if (value == obj_array->Get(j)) {
run++;
} else {
break;
}
}
if (run == 0) {
os << StringPrintf("%d: ", i);
} else {
os << StringPrintf("%d to %zd: ", i, i + run);
i = i + run;
}
mirror::Class* value_class =
(value == nullptr) ? obj_class->GetComponentType() : value->GetClass();
PrettyObjectValue(os, value_class, value);
}
} else if (obj->IsClass()) {
ObjPtr<mirror::Class> klass = obj->AsClass();
if (kBitstringSubtypeCheckEnabled) {
os << "SUBTYPE_CHECK_BITS: ";
SubtypeCheck<ObjPtr<mirror::Class>>::Dump(klass, os);
os << "\n";
}
if (klass->NumStaticFields() != 0) {
os << "STATICS:\n";
ScopedIndentation indent2(&vios_);
for (ArtField& field : klass->GetSFields()) {
PrintField(os, &field, field.GetDeclaringClass());
}
}
} else {
auto it = dex_caches_.find(obj);
if (it != dex_caches_.end()) {
auto* dex_cache = down_cast<mirror::DexCache*>(obj);
const auto& field_section = image_header_.GetFieldsSection();
const auto& method_section = image_header_.GetMethodsSection();
size_t num_methods = dex_cache->NumResolvedMethods();
if (num_methods != 0u) {
os << "Methods (size=" << num_methods << "):\n";
ScopedIndentation indent2(&vios_);
mirror::MethodDexCacheType* resolved_methods = dex_cache->GetResolvedMethods();
for (size_t i = 0, length = dex_cache->NumResolvedMethods(); i < length; ++i) {
ArtMethod* elem = mirror::DexCache::GetNativePairPtrSize(
resolved_methods, i, image_pointer_size).object;
size_t run = 0;
for (size_t j = i + 1;
j != length &&
elem == mirror::DexCache::GetNativePairPtrSize(
resolved_methods, j, image_pointer_size).object;
++j) {
++run;
}
if (run == 0) {
os << StringPrintf("%zd: ", i);
} else {
os << StringPrintf("%zd to %zd: ", i, i + run);
i = i + run;
}
std::string msg;
if (elem == nullptr) {
msg = "null";
} else if (method_section.Contains(
reinterpret_cast<uint8_t*>(elem) - image_space_.Begin())) {
msg = reinterpret_cast<ArtMethod*>(elem)->PrettyMethod();
} else {
msg = "<not in method section>";
}
os << StringPrintf("%p %s\n", elem, msg.c_str());
}
}
size_t num_fields = dex_cache->NumResolvedFields();
if (num_fields != 0u) {
os << "Fields (size=" << num_fields << "):\n";
ScopedIndentation indent2(&vios_);
auto* resolved_fields = dex_cache->GetResolvedFields();
for (size_t i = 0, length = dex_cache->NumResolvedFields(); i < length; ++i) {
ArtField* elem = mirror::DexCache::GetNativePairPtrSize(
resolved_fields, i, image_pointer_size).object;
size_t run = 0;
for (size_t j = i + 1;
j != length &&
elem == mirror::DexCache::GetNativePairPtrSize(
resolved_fields, j, image_pointer_size).object;
++j) {
++run;
}
if (run == 0) {
os << StringPrintf("%zd: ", i);
} else {
os << StringPrintf("%zd to %zd: ", i, i + run);
i = i + run;
}
std::string msg;
if (elem == nullptr) {
msg = "null";
} else if (field_section.Contains(
reinterpret_cast<uint8_t*>(elem) - image_space_.Begin())) {
msg = reinterpret_cast<ArtField*>(elem)->PrettyField();
} else {
msg = "<not in field section>";
}
os << StringPrintf("%p %s\n", elem, msg.c_str());
}
}
size_t num_types = dex_cache->NumResolvedTypes();
if (num_types != 0u) {
os << "Types (size=" << num_types << "):\n";
ScopedIndentation indent2(&vios_);
auto* resolved_types = dex_cache->GetResolvedTypes();
for (size_t i = 0; i < num_types; ++i) {
auto pair = resolved_types[i].load(std::memory_order_relaxed);
size_t run = 0;
for (size_t j = i + 1; j != num_types; ++j) {
auto other_pair = resolved_types[j].load(std::memory_order_relaxed);
if (pair.index != other_pair.index ||
pair.object.Read() != other_pair.object.Read()) {
break;
}
++run;
}
if (run == 0) {
os << StringPrintf("%zd: ", i);
} else {
os << StringPrintf("%zd to %zd: ", i, i + run);
i = i + run;
}
std::string msg;
auto* elem = pair.object.Read();
if (elem == nullptr) {
msg = "null";
} else {
msg = elem->PrettyClass();
}
os << StringPrintf("%p %u %s\n", elem, pair.index, msg.c_str());
}
}
}
}
std::string temp;
stats_.Update(obj_class->GetDescriptor(&temp), object_bytes);
}
void DumpMethod(ArtMethod* method, std::ostream& indent_os)
REQUIRES_SHARED(Locks::mutator_lock_) {
DCHECK(method != nullptr);
const void* quick_oat_code_begin = GetQuickOatCodeBegin(method);
const void* quick_oat_code_end = GetQuickOatCodeEnd(method);
const PointerSize pointer_size = image_header_.GetPointerSize();
OatQuickMethodHeader* method_header = reinterpret_cast<OatQuickMethodHeader*>(
reinterpret_cast<uintptr_t>(quick_oat_code_begin) - sizeof(OatQuickMethodHeader));
if (method->IsNative()) {
bool first_occurrence;
uint32_t quick_oat_code_size = GetQuickOatCodeSize(method);
ComputeOatSize(quick_oat_code_begin, &first_occurrence);
if (first_occurrence) {
stats_.native_to_managed_code_bytes += quick_oat_code_size;
}
if (quick_oat_code_begin != method->GetEntryPointFromQuickCompiledCodePtrSize(
image_header_.GetPointerSize())) {
indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code_begin);
}
} else if (method->IsAbstract() || method->IsClassInitializer()) {
// Don't print information for these.
} else if (method->IsRuntimeMethod()) {
ImtConflictTable* table = method->GetImtConflictTable(image_header_.GetPointerSize());
if (table != nullptr) {
indent_os << "IMT conflict table " << table << " method: ";
for (size_t i = 0, count = table->NumEntries(pointer_size); i < count; ++i) {
indent_os << ArtMethod::PrettyMethod(table->GetImplementationMethod(i, pointer_size))
<< " ";
}
}
}