mirror of
https://github.com/dart-lang/sdk
synced 2024-09-15 23:59:47 +00:00
[vm] Load kernel service from ABI versioned dill file
Bug: https://github.com/dart-lang/sdk/issues/36047 Change-Id: I7122e8f0c8841be462e0fa0b28a75ef693d85d20 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97260 Commit-Queue: Liam Appelbe <liama@google.com> Reviewed-by: Siva Annamalai <asiva@google.com>
This commit is contained in:
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7e170b351d
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c614b99ae1
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@ -136,7 +136,7 @@ template("build_gen_snapshot") {
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if (is_fuchsia) {
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configs -= [ "//build/config:symbol_visibility_hidden" ]
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}
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deps = extra_deps
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deps = [ ":generate_abi_version_cc_file" ] + extra_deps
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sources = [
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"address_sanitizer.cc",
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@ -152,6 +152,7 @@ template("build_gen_snapshot") {
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"snapshot_utils.h",
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# Very limited native resolver provided.
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"$target_gen_dir/abi_version.cc",
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"builtin_common.cc",
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"builtin_gen_snapshot.cc",
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"dfe.cc",
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@ -933,6 +934,7 @@ executable("run_vm_tests") {
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":dart_kernel_platform_cc",
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":dart_snapshot_cc",
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":gen_kernel_bytecode_dill",
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":generate_abi_version_cc_file",
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":generate_snapshot_test_dat_file",
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":libdart_builtin",
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":standalone_dart_io",
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@ -961,6 +963,7 @@ executable("run_vm_tests") {
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heap_tests = rebase_path(heap_sources_tests, ".", "../vm/heap")
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sources = [
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"$target_gen_dir/abi_version.cc",
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"builtin.cc",
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"dfe.cc",
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"dfe.h",
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@ -4,6 +4,9 @@
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#include "bin/dfe.h"
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#include <memory>
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#include "bin/abi_version.h"
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#include "bin/dartutils.h"
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#include "bin/directory.h"
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#include "bin/error_exit.h"
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@ -31,18 +34,6 @@ intptr_t kPlatformStrongDillSize = 0;
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namespace dart {
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namespace bin {
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#if defined(DART_NO_SNAPSHOT) || defined(DART_PRECOMPILER)
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const uint8_t* kernel_service_dill = NULL;
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const intptr_t kernel_service_dill_size = 0;
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const uint8_t* platform_strong_dill = NULL;
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const intptr_t platform_strong_dill_size = 0;
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#else
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const uint8_t* kernel_service_dill = kKernelServiceDill;
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const intptr_t kernel_service_dill_size = kKernelServiceDillSize;
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const uint8_t* platform_strong_dill = kPlatformStrongDill;
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const intptr_t platform_strong_dill_size = kPlatformStrongDillSize;
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#endif
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#if !defined(DART_PRECOMPILED_RUNTIME)
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DFE dfe;
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#endif
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@ -76,7 +67,19 @@ DFE::DFE()
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use_incremental_compiler_(false),
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frontend_filename_(NULL),
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application_kernel_buffer_(NULL),
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application_kernel_buffer_size_(0) {}
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application_kernel_buffer_size_(0) {
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#if defined(DART_NO_SNAPSHOT) || defined(DART_PRECOMPILER)
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kernel_service_dill_ = NULL;
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kernel_service_dill_size_ = 0;
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platform_strong_dill_ = NULL;
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platform_strong_dill_size_ = 0;
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#else
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kernel_service_dill_ = kKernelServiceDill;
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kernel_service_dill_size_ = kKernelServiceDillSize;
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platform_strong_dill_ = kPlatformStrongDill;
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platform_strong_dill_size_ = kPlatformStrongDillSize;
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#endif
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}
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DFE::~DFE() {
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if (frontend_filename_ != NULL) {
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@ -90,56 +93,108 @@ DFE::~DFE() {
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}
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void DFE::Init() {
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if (platform_strong_dill == NULL) {
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Init(AbiVersion::GetCurrent());
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}
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void DFE::Init(int target_abi_version) {
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if (platform_strong_dill_ == NULL) {
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return;
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}
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Dart_SetDartLibrarySourcesKernel(platform_strong_dill,
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platform_strong_dill_size);
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if (frontend_filename_ == NULL) {
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// Look for the frontend snapshot next to the executable.
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char* dir_prefix = GetDirectoryPrefixFromExeName();
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// |dir_prefix| includes the last path seperator.
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frontend_filename_ =
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OS::SCreate(NULL, "%s%s", dir_prefix, kKernelServiceSnapshot);
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if (!File::Exists(NULL, frontend_filename_)) {
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// If the frontend snapshot is not found next to the executable,
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// then look for it in the "snapshots" directory.
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free(frontend_filename_);
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// |dir_prefix| includes the last path seperator.
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frontend_filename_ =
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OS::SCreate(NULL, "%s%s%s%s", dir_prefix, kSnapshotsDirectory,
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File::PathSeparator(), kKernelServiceSnapshot);
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}
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free(dir_prefix);
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if (!File::Exists(NULL, frontend_filename_)) {
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free(frontend_filename_);
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frontend_filename_ = NULL;
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}
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if (!InitKernelServiceAndPlatformDills(target_abi_version)) {
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return;
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}
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Dart_SetDartLibrarySourcesKernel(platform_strong_dill_,
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platform_strong_dill_size_);
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}
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bool DFE::KernelServiceDillAvailable() {
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return kernel_service_dill != NULL;
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bool DFE::InitKernelServiceAndPlatformDills(int target_abi_version) {
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const char kAbiVersionsDir[] = "dart-sdk/lib/_internal/abiversions";
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const char kKernelServiceDillFile[] = "kernel_service.dill";
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const char kPlatformStrongDillFile[] = "vm_platform_strong.dill";
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if (frontend_filename_ != NULL) {
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return true;
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}
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// |dir_prefix| includes the last path seperator.
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auto dir_prefix = std::unique_ptr<char, void (*)(void*)>(
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GetDirectoryPrefixFromExeName(), free);
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if (target_abi_version != AbiVersion::GetCurrent()) {
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kernel_service_dill_ = NULL;
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kernel_service_dill_size_ = 0;
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platform_strong_dill_ = NULL;
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platform_strong_dill_size_ = 0;
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// Look in the old abi version directory.
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char* script_uri =
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OS::SCreate(NULL, "%s%s/%d/%s", dir_prefix.get(), kAbiVersionsDir,
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target_abi_version, kPlatformStrongDillFile);
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if (!TryReadKernelFile(script_uri,
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const_cast<uint8_t**>(&platform_strong_dill_),
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&platform_strong_dill_size_)) {
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Log::PrintErr("Can't find old ABI dill file: %s\n", script_uri);
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free(script_uri);
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return false;
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}
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free(script_uri);
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script_uri =
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OS::SCreate(NULL, "%s%s/%d/%s", dir_prefix.get(), kAbiVersionsDir,
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target_abi_version, kKernelServiceDillFile);
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if (!TryReadKernelFile(script_uri,
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const_cast<uint8_t**>(&kernel_service_dill_),
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&kernel_service_dill_size_)) {
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Log::PrintErr("Can't find old ABI dill file: %s\n", script_uri);
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free(script_uri);
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return false;
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} else {
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frontend_filename_ = script_uri;
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return true;
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}
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}
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// Look for the frontend snapshot next to the executable.
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frontend_filename_ =
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OS::SCreate(NULL, "%s%s", dir_prefix.get(), kKernelServiceSnapshot);
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if (File::Exists(NULL, frontend_filename_)) {
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return true;
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}
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free(frontend_filename_);
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frontend_filename_ = NULL;
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// If the frontend snapshot is not found next to the executable, then look for
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// it in the "snapshots" directory.
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frontend_filename_ =
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OS::SCreate(NULL, "%s%s%s%s", dir_prefix.get(), kSnapshotsDirectory,
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File::PathSeparator(), kKernelServiceSnapshot);
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if (File::Exists(NULL, frontend_filename_)) {
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return true;
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}
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free(frontend_filename_);
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frontend_filename_ = NULL;
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return true;
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}
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bool DFE::KernelServiceDillAvailable() const {
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return kernel_service_dill_ != NULL;
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}
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void DFE::LoadKernelService(const uint8_t** kernel_service_buffer,
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intptr_t* kernel_service_buffer_size) {
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*kernel_service_buffer = kernel_service_dill;
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*kernel_service_buffer_size = kernel_service_dill_size;
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*kernel_service_buffer = kernel_service_dill_;
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*kernel_service_buffer_size = kernel_service_dill_size_;
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}
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void DFE::LoadPlatform(const uint8_t** kernel_buffer,
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intptr_t* kernel_buffer_size) {
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*kernel_buffer = platform_strong_dill;
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*kernel_buffer_size = platform_strong_dill_size;
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*kernel_buffer = platform_strong_dill_;
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*kernel_buffer_size = platform_strong_dill_size_;
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}
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bool DFE::CanUseDartFrontend() const {
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return (platform_strong_dill != NULL) &&
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return (platform_strong_dill_ != NULL) &&
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(KernelServiceDillAvailable() || (frontend_filename() != NULL));
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}
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@ -191,8 +246,8 @@ Dart_KernelCompilationResult DFE::CompileScript(const char* script_uri,
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const char* sanitized_uri = script_uri;
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#endif
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return Dart_CompileToKernel(sanitized_uri, platform_strong_dill,
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platform_strong_dill_size, incremental,
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return Dart_CompileToKernel(sanitized_uri, platform_strong_dill_,
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platform_strong_dill_size_, incremental,
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package_config);
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}
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@ -21,6 +21,7 @@ class DFE {
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// Call Init before Dart_Initialize to prevent races between the
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// different isolates.
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void Init();
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void Init(int target_abi_version);
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char* frontend_filename() const { return frontend_filename_; }
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@ -78,7 +79,7 @@ class DFE {
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uint8_t** kernel_buffer,
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intptr_t* kernel_buffer_size) const;
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static bool KernelServiceDillAvailable();
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bool KernelServiceDillAvailable() const;
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// Tries to read [script_uri] as a Kernel IR file.
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// Returns `true` if successful and sets [kernel_file] and [kernel_length]
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@ -104,11 +105,17 @@ class DFE {
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bool use_dfe_;
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bool use_incremental_compiler_;
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char* frontend_filename_;
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const uint8_t* kernel_service_dill_;
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intptr_t kernel_service_dill_size_;
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const uint8_t* platform_strong_dill_;
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intptr_t platform_strong_dill_size_;
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// Kernel binary specified on the cmd line.
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uint8_t* application_kernel_buffer_;
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intptr_t application_kernel_buffer_size_;
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bool InitKernelServiceAndPlatformDills(int target_abi_version);
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DISALLOW_COPY_AND_ASSIGN(DFE);
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};
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@ -1125,7 +1125,7 @@ void main(int argc, char** argv) {
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// Note: must read platform only *after* VM flags are parsed because
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// they might affect how the platform is loaded.
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#if !defined(DART_PRECOMPILED_RUNTIME)
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dfe.Init();
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dfe.Init(Options::target_abi_version());
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uint8_t* application_kernel_buffer = NULL;
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intptr_t application_kernel_buffer_size = 0;
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dfe.ReadScript(script_name, &application_kernel_buffer,
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