| /* |
| * 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 "runtime.h" |
| |
| #include <signal.h> |
| #include <sys/syscall.h> |
| |
| #include <cstdio> |
| #include <cstdlib> |
| #include <limits> |
| #include <vector> |
| |
| #include "class_linker.h" |
| #include "class_loader.h" |
| #include "constants_arm.h" |
| #include "constants_mips.h" |
| #include "constants_x86.h" |
| #include "debugger.h" |
| #include "heap.h" |
| #include "image.h" |
| #include "instrumentation.h" |
| #include "intern_table.h" |
| #include "jni_internal.h" |
| #include "monitor.h" |
| #include "oat_file.h" |
| #include "ScopedLocalRef.h" |
| #include "scoped_thread_state_change.h" |
| #include "signal_catcher.h" |
| #include "signal_set.h" |
| #include "sirt_ref.h" |
| #include "gc/space.h" |
| #include "thread.h" |
| #include "thread_list.h" |
| #include "trace.h" |
| #include "UniquePtr.h" |
| #include "verifier/method_verifier.h" |
| #include "well_known_classes.h" |
| |
| #if defined(ART_USE_LLVM_COMPILER) |
| #include "compiler_llvm/procedure_linkage_table.h" |
| #endif |
| |
| #include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art. |
| |
| namespace art { |
| |
| Runtime* Runtime::instance_ = NULL; |
| |
| Runtime::Runtime() |
| : is_compiler_(false), |
| is_zygote_(false), |
| is_concurrent_gc_enabled_(true), |
| default_stack_size_(0), |
| heap_(NULL), |
| monitor_list_(NULL), |
| thread_list_(NULL), |
| intern_table_(NULL), |
| class_linker_(NULL), |
| signal_catcher_(NULL), |
| java_vm_(NULL), |
| pre_allocated_OutOfMemoryError_(NULL), |
| jni_stub_array_(NULL), |
| abstract_method_error_stub_array_(NULL), |
| resolution_method_(NULL), |
| system_class_loader_(NULL), |
| threads_being_born_(0), |
| shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)), |
| shutting_down_(false), |
| shutting_down_started_(false), |
| started_(false), |
| finished_starting_(false), |
| vfprintf_(NULL), |
| exit_(NULL), |
| abort_(NULL), |
| stats_enabled_(false), |
| method_trace_(0), |
| method_trace_file_size_(0), |
| instrumentation_(NULL), |
| use_compile_time_class_path_(false), |
| main_thread_group_(NULL), |
| system_thread_group_(NULL) |
| #if defined(ART_USE_LLVM_COMPILER) |
| #if defined(__arm__) |
| , plt_(kArm) |
| #elif defined(__mips__) |
| , plt_(kMips) |
| #elif defined(__i386__) |
| , plt_(kX86) |
| #endif |
| #endif |
| { |
| for (int i = 0; i < Runtime::kLastTrampolineMethodType; i++) { |
| resolution_stub_array_[i] = NULL; |
| } |
| for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { |
| callee_save_methods_[i] = NULL; |
| } |
| |
| #if defined(ART_USE_LLVM_COMPILER) |
| CHECK(plt_.AllocateTable()) << "Failed to allocate PLT"; |
| #endif |
| } |
| |
| Runtime::~Runtime() { |
| Thread* self = Thread::Current(); |
| { |
| MutexLock mu(self, *Locks::runtime_shutdown_lock_); |
| shutting_down_started_ = true; |
| while (threads_being_born_ > 0) { |
| shutdown_cond_->Wait(self); |
| } |
| shutting_down_ = true; |
| } |
| |
| if (IsMethodTracingActive()) { |
| Trace::Shutdown(); |
| } |
| delete instrumentation_; |
| |
| // Make sure to let the GC complete if it is running. |
| heap_->WaitForConcurrentGcToComplete(self); |
| heap_->DeleteThreadPool(); |
| |
| // Make sure our internal threads are dead before we start tearing down things they're using. |
| Dbg::StopJdwp(); |
| delete signal_catcher_; |
| |
| // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended. |
| delete thread_list_; |
| delete monitor_list_; |
| |
| delete class_linker_; |
| delete heap_; |
| verifier::MethodVerifier::Shutdown(); |
| delete intern_table_; |
| delete java_vm_; |
| Thread::Shutdown(); |
| QuasiAtomic::Shutdown(); |
| |
| // TODO: acquire a static mutex on Runtime to avoid racing. |
| CHECK(instance_ == NULL || instance_ == this); |
| instance_ = NULL; |
| } |
| |
| struct AbortState { |
| void Dump(std::ostream& os) { |
| if (gAborting) { |
| os << "Runtime aborting --- recursively, so no thread-specific detail!\n"; |
| return; |
| } |
| gAborting = true; |
| os << "Runtime aborting...\n"; |
| if (Runtime::Current() == NULL) { |
| os << "(Runtime does not yet exist!)\n"; |
| return; |
| } |
| Thread* self = Thread::Current(); |
| if (self == NULL) { |
| os << "(Aborting thread was not attached to runtime!)\n"; |
| } else { |
| // TODO: we're aborting and the ScopedObjectAccess may attempt to acquire the mutator_lock_ |
| // which may block indefinitely if there's a misbehaving thread holding it exclusively. |
| // The code below should be made robust to this. |
| ScopedObjectAccess soa(self); |
| os << "Aborting thread:\n"; |
| self->Dump(os); |
| if (self->IsExceptionPending()) { |
| os << "Pending " << PrettyTypeOf(self->GetException()) << " on thread:\n" |
| << self->GetException()->Dump(); |
| } |
| } |
| DumpAllThreads(os, self); |
| } |
| |
| void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS { |
| bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self); |
| bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self); |
| if (!tll_already_held || !ml_already_held) { |
| os << "Dumping all threads without appropriate locks held:" |
| << (!tll_already_held ? " thread list lock" : "") |
| << (!ml_already_held ? " mutator lock" : "") |
| << "\n"; |
| } |
| os << "All threads:\n"; |
| Runtime::Current()->GetThreadList()->DumpLocked(os); |
| } |
| }; |
| |
| void Runtime::Abort() { |
| gAborting = true; // set before taking any locks |
| |
| // Ensure that we don't have multiple threads trying to abort at once, |
| // which would result in significantly worse diagnostics. |
| MutexLock mu(Thread::Current(), *Locks::abort_lock_); |
| |
| // Get any pending output out of the way. |
| fflush(NULL); |
| |
| // Many people have difficulty distinguish aborts from crashes, |
| // so be explicit. |
| AbortState state; |
| LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state); |
| |
| // Call the abort hook if we have one. |
| if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) { |
| LOG(INTERNAL_FATAL) << "Calling abort hook..."; |
| Runtime::Current()->abort_(); |
| // notreached |
| LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!"; |
| } |
| |
| #if defined(__BIONIC__) |
| // TODO: finish merging patches to fix abort(3) in bionic, then lose this! |
| // Bionic doesn't implement POSIX semantics for abort(3) in a multi-threaded |
| // process, so if we call abort(3) on a device, all threads in the process |
| // receive SIGABRT. debuggerd dumps the stack trace of the main |
| // thread, whether or not that was the thread that failed. By |
| // stuffing a value into a bogus address, we cause a segmentation |
| // fault in the current thread, and get a useful log from debuggerd. |
| // We can also trivially tell the difference between a crash and |
| // a deliberate abort by looking at the fault address. |
| *reinterpret_cast<char*>(0xdeadd00d) = 38; |
| #elif defined(__APPLE__) |
| // TODO: check that this actually gives good stack traces on the Mac! |
| pthread_kill(pthread_self(), SIGABRT); |
| #else |
| // TODO: we ought to be able to use pthread_kill(3) here (or abort(3), |
| // which POSIX defines in terms of raise(3), which POSIX defines in terms |
| // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through |
| // libpthread, which means the stacks we dump would be useless. Calling |
| // tgkill(2) directly avoids that. |
| syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT); |
| #endif |
| // notreached |
| } |
| |
| bool Runtime::PreZygoteFork() { |
| heap_->PreZygoteFork(); |
| return true; |
| } |
| |
| void Runtime::CallExitHook(jint status) { |
| if (exit_ != NULL) { |
| ScopedThreadStateChange tsc(Thread::Current(), kNative); |
| exit_(status); |
| LOG(WARNING) << "Exit hook returned instead of exiting!"; |
| } |
| } |
| |
| // Parse a string of the form /[0-9]+[kKmMgG]?/, which is used to specify |
| // memory sizes. [kK] indicates kilobytes, [mM] megabytes, and |
| // [gG] gigabytes. |
| // |
| // "s" should point just past the "-Xm?" part of the string. |
| // "div" specifies a divisor, e.g. 1024 if the value must be a multiple |
| // of 1024. |
| // |
| // The spec says the -Xmx and -Xms options must be multiples of 1024. It |
| // doesn't say anything about -Xss. |
| // |
| // Returns 0 (a useless size) if "s" is malformed or specifies a low or |
| // non-evenly-divisible value. |
| // |
| size_t ParseMemoryOption(const char* s, size_t div) { |
| // strtoul accepts a leading [+-], which we don't want, |
| // so make sure our string starts with a decimal digit. |
| if (isdigit(*s)) { |
| char* s2; |
| size_t val = strtoul(s, &s2, 10); |
| if (s2 != s) { |
| // s2 should be pointing just after the number. |
| // If this is the end of the string, the user |
| // has specified a number of bytes. Otherwise, |
| // there should be exactly one more character |
| // that specifies a multiplier. |
| if (*s2 != '\0') { |
| // The remainder of the string is either a single multiplier |
| // character, or nothing to indicate that the value is in |
| // bytes. |
| char c = *s2++; |
| if (*s2 == '\0') { |
| size_t mul; |
| if (c == '\0') { |
| mul = 1; |
| } else if (c == 'k' || c == 'K') { |
| mul = KB; |
| } else if (c == 'm' || c == 'M') { |
| mul = MB; |
| } else if (c == 'g' || c == 'G') { |
| mul = GB; |
| } else { |
| // Unknown multiplier character. |
| return 0; |
| } |
| |
| if (val <= std::numeric_limits<size_t>::max() / mul) { |
| val *= mul; |
| } else { |
| // Clamp to a multiple of 1024. |
| val = std::numeric_limits<size_t>::max() & ~(1024-1); |
| } |
| } else { |
| // There's more than one character after the numeric part. |
| return 0; |
| } |
| } |
| // The man page says that a -Xm value must be a multiple of 1024. |
| if (val % div == 0) { |
| return val; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| size_t ParseIntegerOrDie(const std::string& s) { |
| std::string::size_type colon = s.find(':'); |
| if (colon == std::string::npos) { |
| LOG(FATAL) << "Missing integer: " << s; |
| } |
| const char* begin = &s[colon + 1]; |
| char* end; |
| size_t result = strtoul(begin, &end, 10); |
| if (begin == end || *end != '\0') { |
| LOG(FATAL) << "Failed to parse integer in: " << s; |
| } |
| return result; |
| } |
| |
| Runtime::ParsedOptions* Runtime::ParsedOptions::Create(const Options& options, bool ignore_unrecognized) { |
| UniquePtr<ParsedOptions> parsed(new ParsedOptions()); |
| const char* boot_class_path_string = getenv("BOOTCLASSPATH"); |
| if (boot_class_path_string != NULL) { |
| parsed->boot_class_path_string_ = boot_class_path_string; |
| } |
| const char* class_path_string = getenv("CLASSPATH"); |
| if (class_path_string != NULL) { |
| parsed->class_path_string_ = class_path_string; |
| } |
| // -Xcheck:jni is off by default for regular builds but on by default in debug builds. |
| parsed->check_jni_ = kIsDebugBuild; |
| |
| parsed->heap_initial_size_ = Heap::kDefaultInitialSize; |
| parsed->heap_maximum_size_ = Heap::kDefaultMaximumSize; |
| parsed->heap_min_free_ = Heap::kDefaultMinFree; |
| parsed->heap_max_free_ = Heap::kDefaultMaxFree; |
| parsed->heap_target_utilization_ = Heap::kDefaultTargetUtilization; |
| parsed->heap_growth_limit_ = 0; // 0 means no growth limit. |
| parsed->stack_size_ = 0; // 0 means default. |
| |
| parsed->is_compiler_ = false; |
| parsed->is_zygote_ = false; |
| parsed->interpreter_only_ = false; |
| parsed->is_concurrent_gc_enabled_ = true; |
| |
| parsed->jni_globals_max_ = 0; |
| parsed->lock_profiling_threshold_ = 0; |
| parsed->hook_is_sensitive_thread_ = NULL; |
| |
| parsed->hook_vfprintf_ = vfprintf; |
| parsed->hook_exit_ = exit; |
| parsed->hook_abort_ = NULL; // We don't call abort(3) by default; see Runtime::Abort. |
| |
| // gLogVerbosity.class_linker = true; // TODO: don't check this in! |
| // gLogVerbosity.compiler = true; // TODO: don't check this in! |
| // gLogVerbosity.heap = true; // TODO: don't check this in! |
| // gLogVerbosity.gc = true; // TODO: don't check this in! |
| // gLogVerbosity.jdwp = true; // TODO: don't check this in! |
| // gLogVerbosity.jni = true; // TODO: don't check this in! |
| // gLogVerbosity.monitor = true; // TODO: don't check this in! |
| // gLogVerbosity.startup = true; // TODO: don't check this in! |
| // gLogVerbosity.third_party_jni = true; // TODO: don't check this in! |
| // gLogVerbosity.threads = true; // TODO: don't check this in! |
| |
| parsed->method_trace_ = false; |
| parsed->method_trace_file_ = "/data/method-trace-file.bin"; |
| parsed->method_trace_file_size_ = 10 * MB; |
| |
| for (size_t i = 0; i < options.size(); ++i) { |
| const std::string option(options[i].first); |
| if (true && options[0].first == "-Xzygote") { |
| LOG(INFO) << "option[" << i << "]=" << option; |
| } |
| if (StartsWith(option, "-Xbootclasspath:")) { |
| parsed->boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data(); |
| } else if (option == "-classpath" || option == "-cp") { |
| // TODO: support -Djava.class.path |
| i++; |
| if (i == options.size()) { |
| // TODO: usage |
| LOG(FATAL) << "Missing required class path value for " << option; |
| return NULL; |
| } |
| const StringPiece& value = options[i].first; |
| parsed->class_path_string_ = value.data(); |
| } else if (option == "bootclasspath") { |
| parsed->boot_class_path_ |
| = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second); |
| } else if (StartsWith(option, "-Ximage:")) { |
| parsed->image_ = option.substr(strlen("-Ximage:")).data(); |
| } else if (StartsWith(option, "-Xcheck:jni")) { |
| parsed->check_jni_ = true; |
| } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) { |
| std::string tail(option.substr(option[1] == 'X' ? 10 : 15)); |
| if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) { |
| LOG(FATAL) << "Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n" |
| << "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n"; |
| return NULL; |
| } |
| } else if (StartsWith(option, "-Xms")) { |
| size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024); |
| if (size == 0) { |
| if (ignore_unrecognized) { |
| continue; |
| } |
| // TODO: usage |
| LOG(FATAL) << "Failed to parse " << option; |
| return NULL; |
| } |
| parsed->heap_initial_size_ = size; |
| } else if (StartsWith(option, "-Xmx")) { |
| size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024); |
| if (size == 0) { |
| if (ignore_unrecognized) { |
| continue; |
| } |
| // TODO: usage |
| LOG(FATAL) << "Failed to parse " << option; |
| return NULL; |
| } |
| parsed->heap_maximum_size_ = size; |
| } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) { |
| size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024); |
| if (size == 0) { |
| if (ignore_unrecognized) { |
| continue; |
| } |
| // TODO: usage |
| LOG(FATAL) << "Failed to parse " << option; |
| return NULL; |
| } |
| parsed->heap_growth_limit_ = size; |
| } else if (StartsWith(option, "-XX:HeapMinFree=")) { |
| size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024); |
| if (size == 0) { |
| if (ignore_unrecognized) { |
| continue; |
| } |
| // TODO: usage |
| LOG(FATAL) << "Failed to parse " << option; |
| return NULL; |
| } |
| parsed->heap_min_free_ = size; |
| } else if (StartsWith(option, "-XX:HeapMaxFree=")) { |
| size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024); |
| if (size == 0) { |
| if (ignore_unrecognized) { |
| continue; |
| } |
| // TODO: usage |
| LOG(FATAL) << "Failed to parse " << option; |
| return NULL; |
| } |
| parsed->heap_max_free_ = size; |
| } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) { |
| std::istringstream iss(option.substr(strlen("-XX:HeapTargetUtilization="))); |
| double value; |
| iss >> value; |
| // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range. |
| const bool sane_val = iss.good() && (value >= 0.1) && (value <= 0.9); |
| if (!sane_val) { |
| if (ignore_unrecognized) { |
| continue; |
| } |
| LOG(FATAL) << "Invalid option '" << option << "'"; |
| return NULL; |
| } |
| parsed->heap_target_utilization_ = value; |
| } else if (StartsWith(option, "-Xss")) { |
| size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1); |
| if (size == 0) { |
| if (ignore_unrecognized) { |
| continue; |
| } |
| // TODO: usage |
| LOG(FATAL) << "Failed to parse " << option; |
| return NULL; |
| } |
| parsed->stack_size_ = size; |
| } else if (StartsWith(option, "-D")) { |
| parsed->properties_.push_back(option.substr(strlen("-D"))); |
| } else if (StartsWith(option, "-Xjnitrace:")) { |
| parsed->jni_trace_ = option.substr(strlen("-Xjnitrace:")); |
| } else if (option == "compiler") { |
| parsed->is_compiler_ = true; |
| } else if (option == "-Xzygote") { |
| parsed->is_zygote_ = true; |
| } else if (option == "-Xint") { |
| parsed->interpreter_only_ = true; |
| } else if (StartsWith(option, "-Xgc:")) { |
| std::vector<std::string> gc_options; |
| Split(option.substr(strlen("-Xgc:")), ',', gc_options); |
| for (size_t i = 0; i < gc_options.size(); ++i) { |
| if (gc_options[i] == "noconcurrent") { |
| parsed->is_concurrent_gc_enabled_ = false; |
| } else if (gc_options[i] == "concurrent") { |
| parsed->is_concurrent_gc_enabled_ = true; |
| } else { |
| LOG(WARNING) << "Ignoring unknown -Xgc option: " << gc_options[i]; |
| } |
| } |
| } else if (StartsWith(option, "-verbose:")) { |
| std::vector<std::string> verbose_options; |
| Split(option.substr(strlen("-verbose:")), ',', verbose_options); |
| for (size_t i = 0; i < verbose_options.size(); ++i) { |
| if (verbose_options[i] == "class") { |
| gLogVerbosity.class_linker = true; |
| } else if (verbose_options[i] == "compiler") { |
| gLogVerbosity.compiler = true; |
| } else if (verbose_options[i] == "heap") { |
| gLogVerbosity.heap = true; |
| } else if (verbose_options[i] == "gc") { |
| gLogVerbosity.gc = true; |
| } else if (verbose_options[i] == "jdwp") { |
| gLogVerbosity.jdwp = true; |
| } else if (verbose_options[i] == "jni") { |
| gLogVerbosity.jni = true; |
| } else if (verbose_options[i] == "monitor") { |
| gLogVerbosity.monitor = true; |
| } else if (verbose_options[i] == "startup") { |
| gLogVerbosity.startup = true; |
| } else if (verbose_options[i] == "third-party-jni") { |
| gLogVerbosity.third_party_jni = true; |
| } else if (verbose_options[i] == "threads") { |
| gLogVerbosity.threads = true; |
| } else { |
| LOG(WARNING) << "Ignoring unknown -verbose option: " << verbose_options[i]; |
| } |
| } |
| } else if (StartsWith(option, "-Xjnigreflimit:")) { |
| parsed->jni_globals_max_ = ParseIntegerOrDie(option); |
| } else if (StartsWith(option, "-Xlockprofthreshold:")) { |
| parsed->lock_profiling_threshold_ = ParseIntegerOrDie(option); |
| } else if (StartsWith(option, "-Xstacktracefile:")) { |
| parsed->stack_trace_file_ = option.substr(strlen("-Xstacktracefile:")); |
| } else if (option == "sensitiveThread") { |
| parsed->hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(options[i].second)); |
| } else if (option == "vfprintf") { |
| parsed->hook_vfprintf_ = |
| reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(options[i].second)); |
| } else if (option == "exit") { |
| parsed->hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(options[i].second)); |
| } else if (option == "abort") { |
| parsed->hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(options[i].second)); |
| } else if (option == "host-prefix") { |
| parsed->host_prefix_ = reinterpret_cast<const char*>(options[i].second); |
| } else if (option == "-Xgenregmap" || option == "-Xgc:precise") { |
| // We silently ignore these for backwards compatibility. |
| } else if (option == "-Xmethod-trace") { |
| parsed->method_trace_ = true; |
| } else if (StartsWith(option, "-Xmethod-trace-file:")) { |
| parsed->method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:")); |
| } else if (StartsWith(option, "-Xmethod-trace-file-size:")) { |
| parsed->method_trace_file_size_ = ParseIntegerOrDie(option); |
| } else if (option == "-Xprofile:threadcpuclock") { |
| Trace::SetDefaultClockSource(kProfilerClockSourceThreadCpu); |
| } else if (option == "-Xprofile:wallclock") { |
| Trace::SetDefaultClockSource(kProfilerClockSourceWall); |
| } else if (option == "-Xprofile:dualclock") { |
| Trace::SetDefaultClockSource(kProfilerClockSourceDual); |
| } else { |
| if (!ignore_unrecognized) { |
| // TODO: print usage via vfprintf |
| LOG(ERROR) << "Unrecognized option " << option; |
| // TODO: this should exit, but for now tolerate unknown options |
| //return NULL; |
| } |
| } |
| } |
| |
| if (!parsed->is_compiler_ && parsed->image_.empty()) { |
| parsed->image_ += GetAndroidRoot(); |
| parsed->image_ += "/framework/boot.art"; |
| } |
| if (parsed->heap_growth_limit_ == 0) { |
| parsed->heap_growth_limit_ = parsed->heap_maximum_size_; |
| } |
| |
| return parsed.release(); |
| } |
| |
| bool Runtime::Create(const Options& options, bool ignore_unrecognized) { |
| // TODO: acquire a static mutex on Runtime to avoid racing. |
| if (Runtime::instance_ != NULL) { |
| return false; |
| } |
| Locks::Init(); |
| instance_ = new Runtime; |
| if (!instance_->Init(options, ignore_unrecognized)) { |
| delete instance_; |
| instance_ = NULL; |
| return false; |
| } |
| return true; |
| } |
| |
| static void CreateSystemClassLoader() { |
| if (Runtime::Current()->UseCompileTimeClassPath()) { |
| return; |
| } |
| |
| ScopedObjectAccess soa(Thread::Current()); |
| |
| Class* class_loader_class = soa.Decode<Class*>(WellKnownClasses::java_lang_ClassLoader); |
| CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(class_loader_class, true, true)); |
| |
| AbstractMethod* getSystemClassLoader = class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;"); |
| CHECK(getSystemClassLoader != NULL); |
| |
| ClassLoader* class_loader = |
| down_cast<ClassLoader*>(InvokeWithJValues(soa, NULL, getSystemClassLoader, NULL).GetL()); |
| CHECK(class_loader != NULL); |
| |
| soa.Self()->SetClassLoaderOverride(class_loader); |
| |
| Class* thread_class = soa.Decode<Class*>(WellKnownClasses::java_lang_Thread); |
| CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(thread_class, true, true)); |
| |
| Field* contextClassLoader = thread_class->FindDeclaredInstanceField("contextClassLoader", |
| "Ljava/lang/ClassLoader;"); |
| CHECK(contextClassLoader != NULL); |
| |
| contextClassLoader->SetObject(soa.Self()->GetPeer(), class_loader); |
| } |
| |
| void Runtime::Start() { |
| VLOG(startup) << "Runtime::Start entering"; |
| |
| CHECK(host_prefix_.empty()) << host_prefix_; |
| |
| // Pre-allocate an OutOfMemoryError for the double-OOME case. |
| Thread* self = Thread::Current(); |
| self->ThrowNewException("Ljava/lang/OutOfMemoryError;", |
| "OutOfMemoryError thrown while trying to throw OutOfMemoryError; no stack available"); |
| pre_allocated_OutOfMemoryError_ = self->GetException(); |
| self->ClearException(); |
| |
| // Restore main thread state to kNative as expected by native code. |
| self->TransitionFromRunnableToSuspended(kNative); |
| |
| started_ = true; |
| |
| // InitNativeMethods needs to be after started_ so that the classes |
| // it touches will have methods linked to the oat file if necessary. |
| InitNativeMethods(); |
| |
| // Initialize well known thread group values that may be accessed threads while attaching. |
| InitThreadGroups(self); |
| |
| Thread::FinishStartup(); |
| |
| if (!is_zygote_) { |
| DidForkFromZygote(); |
| } |
| |
| StartDaemonThreads(); |
| |
| CreateSystemClassLoader(); |
| |
| self->GetJniEnv()->locals.AssertEmpty(); |
| |
| VLOG(startup) << "Runtime::Start exiting"; |
| |
| finished_starting_ = true; |
| } |
| |
| void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) { |
| DCHECK_GT(threads_being_born_, 0U); |
| threads_being_born_--; |
| if (shutting_down_started_ && threads_being_born_ == 0) { |
| shutdown_cond_->Broadcast(Thread::Current()); |
| } |
| } |
| |
| void Runtime::DidForkFromZygote() { |
| is_zygote_ = false; |
| |
| // Create the thread pool. |
| heap_->CreateThreadPool(); |
| |
| StartSignalCatcher(); |
| |
| // Start the JDWP thread. If the command-line debugger flags specified "suspend=y", |
| // this will pause the runtime, so we probably want this to come last. |
| Dbg::StartJdwp(); |
| } |
| |
| void Runtime::StartSignalCatcher() { |
| if (!is_zygote_) { |
| signal_catcher_ = new SignalCatcher(stack_trace_file_); |
| } |
| } |
| |
| void Runtime::StartDaemonThreads() { |
| VLOG(startup) << "Runtime::StartDaemonThreads entering"; |
| |
| Thread* self = Thread::Current(); |
| |
| // Must be in the kNative state for calling native methods. |
| CHECK_EQ(self->GetState(), kNative); |
| |
| JNIEnv* env = self->GetJniEnv(); |
| env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons, |
| WellKnownClasses::java_lang_Daemons_start); |
| if (env->ExceptionCheck()) { |
| env->ExceptionDescribe(); |
| LOG(FATAL) << "Error starting java.lang.Daemons"; |
| } |
| |
| VLOG(startup) << "Runtime::StartDaemonThreads exiting"; |
| } |
| |
| bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) { |
| CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize); |
| |
| UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized)); |
| if (options.get() == NULL) { |
| LOG(ERROR) << "Failed to parse options"; |
| return false; |
| } |
| VLOG(startup) << "Runtime::Init -verbose:startup enabled"; |
| |
| QuasiAtomic::Startup(); |
| |
| SetJniGlobalsMax(options->jni_globals_max_); |
| Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_); |
| |
| host_prefix_ = options->host_prefix_; |
| boot_class_path_string_ = options->boot_class_path_string_; |
| class_path_string_ = options->class_path_string_; |
| properties_ = options->properties_; |
| |
| is_compiler_ = options->is_compiler_; |
| is_zygote_ = options->is_zygote_; |
| interpreter_only_ = options->interpreter_only_; |
| is_concurrent_gc_enabled_ = options->is_concurrent_gc_enabled_; |
| |
| vfprintf_ = options->hook_vfprintf_; |
| exit_ = options->hook_exit_; |
| abort_ = options->hook_abort_; |
| |
| default_stack_size_ = options->stack_size_; |
| stack_trace_file_ = options->stack_trace_file_; |
| |
| monitor_list_ = new MonitorList; |
| thread_list_ = new ThreadList; |
| intern_table_ = new InternTable; |
| |
| verifier::MethodVerifier::Init(); |
| |
| heap_ = new Heap(options->heap_initial_size_, |
| options->heap_growth_limit_, |
| options->heap_min_free_, |
| options->heap_max_free_, |
| options->heap_target_utilization_, |
| options->heap_maximum_size_, |
| options->image_, |
| options->is_concurrent_gc_enabled_); |
| |
| BlockSignals(); |
| InitPlatformSignalHandlers(); |
| |
| java_vm_ = new JavaVMExt(this, options.get()); |
| |
| Thread::Startup(); |
| |
| // ClassLinker needs an attached thread, but we can't fully attach a thread without creating |
| // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main |
| // thread, we do not get a java peer. |
| Thread* self = Thread::Attach("main", false, NULL, false); |
| CHECK_EQ(self->thin_lock_id_, ThreadList::kMainId); |
| CHECK(self != NULL); |
| |
| // Set us to runnable so tools using a runtime can allocate and GC by default |
| self->TransitionFromSuspendedToRunnable(); |
| |
| // Now we're attached, we can take the heap lock and validate the heap. |
| GetHeap()->EnableObjectValidation(); |
| |
| CHECK_GE(GetHeap()->GetSpaces().size(), 1U); |
| if (GetHeap()->GetSpaces()[0]->IsImageSpace()) { |
| class_linker_ = ClassLinker::CreateFromImage(intern_table_); |
| } else { |
| CHECK(options->boot_class_path_ != NULL); |
| CHECK_NE(options->boot_class_path_->size(), 0U); |
| class_linker_ = ClassLinker::CreateFromCompiler(*options->boot_class_path_, intern_table_); |
| } |
| CHECK(class_linker_ != NULL); |
| |
| method_trace_ = options->method_trace_; |
| method_trace_file_ = options->method_trace_file_; |
| method_trace_file_size_ = options->method_trace_file_size_; |
| |
| if (options->method_trace_) { |
| Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0, false); |
| } |
| |
| VLOG(startup) << "Runtime::Init exiting"; |
| return true; |
| } |
| |
| void Runtime::InitNativeMethods() { |
| VLOG(startup) << "Runtime::InitNativeMethods entering"; |
| Thread* self = Thread::Current(); |
| JNIEnv* env = self->GetJniEnv(); |
| |
| // Must be in the kNative state for calling native methods (JNI_OnLoad code). |
| CHECK_EQ(self->GetState(), kNative); |
| |
| // First set up JniConstants, which is used by both the runtime's built-in native |
| // methods and libcore. |
| JniConstants::init(env); |
| WellKnownClasses::Init(env); |
| |
| // Then set up the native methods provided by the runtime itself. |
| RegisterRuntimeNativeMethods(env); |
| |
| // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad. |
| // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's |
| // the library that implements System.loadLibrary! |
| { |
| std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore")); |
| std::string reason; |
| self->TransitionFromSuspendedToRunnable(); |
| if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, NULL, reason)) { |
| LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason; |
| } |
| self->TransitionFromRunnableToSuspended(kNative); |
| } |
| |
| // Initialize well known classes that may invoke runtime native methods. |
| WellKnownClasses::LateInit(env); |
| |
| VLOG(startup) << "Runtime::InitNativeMethods exiting"; |
| } |
| |
| void Runtime::InitThreadGroups(Thread* self) { |
| JNIEnvExt* env = self->GetJniEnv(); |
| ScopedJniEnvLocalRefState env_state(env); |
| main_thread_group_ = |
| env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup, |
| WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup)); |
| CHECK(main_thread_group_ != NULL || IsCompiler()); |
| system_thread_group_ = |
| env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup, |
| WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup)); |
| CHECK(system_thread_group_ != NULL || IsCompiler()); |
| } |
| |
| jobject Runtime::GetMainThreadGroup() const { |
| CHECK(main_thread_group_ != NULL || IsCompiler()); |
| return main_thread_group_; |
| } |
| |
| jobject Runtime::GetSystemThreadGroup() const { |
| CHECK(system_thread_group_ != NULL || IsCompiler()); |
| return system_thread_group_; |
| } |
| |
| void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) { |
| #define REGISTER(FN) extern void FN(JNIEnv*); FN(env) |
| // Register Throwable first so that registration of other native methods can throw exceptions |
| REGISTER(register_java_lang_Throwable); |
| REGISTER(register_dalvik_system_DexFile); |
| REGISTER(register_dalvik_system_VMDebug); |
| REGISTER(register_dalvik_system_VMRuntime); |
| REGISTER(register_dalvik_system_VMStack); |
| REGISTER(register_dalvik_system_Zygote); |
| REGISTER(register_java_lang_Class); |
| REGISTER(register_java_lang_Object); |
| REGISTER(register_java_lang_Runtime); |
| REGISTER(register_java_lang_String); |
| REGISTER(register_java_lang_System); |
| REGISTER(register_java_lang_Thread); |
| REGISTER(register_java_lang_VMClassLoader); |
| REGISTER(register_java_lang_reflect_Array); |
| REGISTER(register_java_lang_reflect_Constructor); |
| REGISTER(register_java_lang_reflect_Field); |
| REGISTER(register_java_lang_reflect_Method); |
| REGISTER(register_java_lang_reflect_Proxy); |
| REGISTER(register_java_util_concurrent_atomic_AtomicLong); |
| REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer); |
| REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal); |
| REGISTER(register_sun_misc_Unsafe); |
| #undef REGISTER |
| } |
| |
| void Runtime::DumpForSigQuit(std::ostream& os) { |
| GetClassLinker()->DumpForSigQuit(os); |
| GetInternTable()->DumpForSigQuit(os); |
| GetJavaVM()->DumpForSigQuit(os); |
| GetHeap()->DumpForSigQuit(os); |
| os << "\n"; |
| |
| thread_list_->DumpForSigQuit(os); |
| } |
| |
| void Runtime::DumpLockHolders(std::ostream& os) { |
| uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid(); |
| pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner(); |
| pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner(); |
| pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner(); |
| if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) { |
| os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n" |
| << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n" |
| << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n" |
| << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n"; |
| } |
| } |
| |
| void Runtime::SetStatsEnabled(bool new_state) { |
| if (new_state == true) { |
| GetStats()->Clear(~0); |
| // TODO: wouldn't it make more sense to clear _all_ threads' stats? |
| Thread::Current()->GetStats()->Clear(~0); |
| } |
| stats_enabled_ = new_state; |
| } |
| |
| void Runtime::ResetStats(int kinds) { |
| GetStats()->Clear(kinds & 0xffff); |
| // TODO: wouldn't it make more sense to clear _all_ threads' stats? |
| Thread::Current()->GetStats()->Clear(kinds >> 16); |
| } |
| |
| int32_t Runtime::GetStat(int kind) { |
| RuntimeStats* stats; |
| if (kind < (1<<16)) { |
| stats = GetStats(); |
| } else { |
| stats = Thread::Current()->GetStats(); |
| kind >>= 16; |
| } |
| switch (kind) { |
| case KIND_ALLOCATED_OBJECTS: |
| return stats->allocated_objects; |
| case KIND_ALLOCATED_BYTES: |
| return stats->allocated_bytes; |
| case KIND_FREED_OBJECTS: |
| return stats->freed_objects; |
| case KIND_FREED_BYTES: |
| return stats->freed_bytes; |
| case KIND_GC_INVOCATIONS: |
| return stats->gc_for_alloc_count; |
| case KIND_CLASS_INIT_COUNT: |
| return stats->class_init_count; |
| case KIND_CLASS_INIT_TIME: |
| // Convert ns to us, reduce to 32 bits. |
| return static_cast<int>(stats->class_init_time_ns / 1000); |
| case KIND_EXT_ALLOCATED_OBJECTS: |
| case KIND_EXT_ALLOCATED_BYTES: |
| case KIND_EXT_FREED_OBJECTS: |
| case KIND_EXT_FREED_BYTES: |
| return 0; // backward compatibility |
| default: |
| LOG(FATAL) << "Unknown statistic " << kind; |
| return -1; // unreachable |
| } |
| } |
| |
| void Runtime::BlockSignals() { |
| SignalSet signals; |
| signals.Add(SIGPIPE); |
| // SIGQUIT is used to dump the runtime's state (including stack traces). |
| signals.Add(SIGQUIT); |
| // SIGUSR1 is used to initiate a GC. |
| signals.Add(SIGUSR1); |
| signals.Block(); |
| } |
| |
| bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group, |
| bool create_peer) { |
| bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL; |
| if (thread_name == NULL) { |
| LOG(WARNING) << *Thread::Current() << " attached without supplying a name"; |
| } |
| return success; |
| } |
| |
| void Runtime::DetachCurrentThread() { |
| Thread* self = Thread::Current(); |
| if (self == NULL) { |
| LOG(FATAL) << "attempting to detach thread that is not attached"; |
| } |
| if (self->HasManagedStack()) { |
| LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code"; |
| } |
| thread_list_->Unregister(self); |
| } |
| |
| void Runtime::VisitConcurrentRoots(Heap::RootVisitor* visitor, void* arg) { |
| if (intern_table_->IsDirty()) { |
| intern_table_->VisitRoots(visitor, arg); |
| } |
| if (class_linker_->IsDirty()) { |
| class_linker_->VisitRoots(visitor, arg); |
| } |
| } |
| |
| void Runtime::VisitNonThreadRoots(Heap::RootVisitor* visitor, void* arg) { |
| Dbg::VisitRoots(visitor, arg); |
| java_vm_->VisitRoots(visitor, arg); |
| if (pre_allocated_OutOfMemoryError_ != NULL) { |
| visitor(pre_allocated_OutOfMemoryError_, arg); |
| } |
| visitor(jni_stub_array_, arg); |
| visitor(abstract_method_error_stub_array_, arg); |
| for (int i = 0; i < Runtime::kLastTrampolineMethodType; i++) { |
| visitor(resolution_stub_array_[i], arg); |
| } |
| visitor(resolution_method_, arg); |
| for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { |
| visitor(callee_save_methods_[i], arg); |
| } |
| } |
| |
| void Runtime::VisitNonConcurrentRoots(Heap::RootVisitor* visitor, void* arg) { |
| thread_list_->VisitRoots(visitor, arg); |
| VisitNonThreadRoots(visitor, arg); |
| } |
| |
| void Runtime::DirtyRoots() { |
| CHECK(intern_table_ != NULL); |
| intern_table_->Dirty(); |
| CHECK(class_linker_ != NULL); |
| class_linker_->Dirty(); |
| } |
| |
| void Runtime::VisitRoots(Heap::RootVisitor* visitor, void* arg) { |
| VisitConcurrentRoots(visitor, arg); |
| VisitNonConcurrentRoots(visitor, arg); |
| } |
| |
| void Runtime::SetJniDlsymLookupStub(ByteArray* jni_stub_array) { |
| CHECK(jni_stub_array != NULL) << " jni_stub_array=" << jni_stub_array; |
| CHECK(jni_stub_array_ == NULL || jni_stub_array_ == jni_stub_array) |
| << "jni_stub_array_=" << jni_stub_array_ << " jni_stub_array=" << jni_stub_array; |
| jni_stub_array_ = jni_stub_array; |
| } |
| |
| void Runtime::SetAbstractMethodErrorStubArray(ByteArray* abstract_method_error_stub_array) { |
| CHECK(abstract_method_error_stub_array != NULL); |
| CHECK(abstract_method_error_stub_array_ == NULL || abstract_method_error_stub_array_ == abstract_method_error_stub_array); |
| abstract_method_error_stub_array_ = abstract_method_error_stub_array; |
| } |
| |
| void Runtime::SetResolutionStubArray(ByteArray* resolution_stub_array, TrampolineType type) { |
| CHECK(resolution_stub_array != NULL); |
| CHECK(!HasResolutionStubArray(type) || resolution_stub_array_[type] == resolution_stub_array); |
| resolution_stub_array_[type] = resolution_stub_array; |
| } |
| |
| AbstractMethod* Runtime::CreateResolutionMethod() { |
| Class* method_class = AbstractMethod::GetMethodClass(); |
| Thread* self = Thread::Current(); |
| SirtRef<AbstractMethod> method(self, down_cast<AbstractMethod*>(method_class->AllocObject(self))); |
| method->SetDeclaringClass(method_class); |
| // TODO: use a special method for resolution method saves |
| method->SetDexMethodIndex(DexFile::kDexNoIndex16); |
| ByteArray* unknown_resolution_stub = GetResolutionStubArray(kUnknownMethod); |
| CHECK(unknown_resolution_stub != NULL); |
| method->SetCode(unknown_resolution_stub->GetData()); |
| return method.get(); |
| } |
| |
| AbstractMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set, |
| CalleeSaveType type) { |
| Class* method_class = AbstractMethod::GetMethodClass(); |
| Thread* self = Thread::Current(); |
| SirtRef<AbstractMethod> method(self, down_cast<AbstractMethod*>(method_class->AllocObject(self))); |
| method->SetDeclaringClass(method_class); |
| // TODO: use a special method for callee saves |
| method->SetDexMethodIndex(DexFile::kDexNoIndex16); |
| method->SetCode(NULL); |
| if ((instruction_set == kThumb2) || (instruction_set == kArm)) { |
| uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) | |
| (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11); |
| uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3); |
| uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9); |
| uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) | |
| (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR); |
| uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) | |
| (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) | |
| (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) | |
| (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) | |
| (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) | |
| (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) | |
| (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) | |
| (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) | |
| (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) | |
| (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) | |
| (1 << art::arm::S30) | (1 << art::arm::S31); |
| uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0; |
| size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ + |
| __builtin_popcount(fp_spills) /* fprs */ + |
| 1 /* Method* */) * kPointerSize, kStackAlignment); |
| method->SetFrameSizeInBytes(frame_size); |
| method->SetCoreSpillMask(core_spills); |
| method->SetFpSpillMask(fp_spills); |
| } else if (instruction_set == kMips) { |
| uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) | |
| (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) | |
| (1 << art::mips::FP); |
| uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3); |
| uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1); |
| uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) | |
| (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA); |
| size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ + |
| (type == kRefsAndArgs ? 0 : 5) /* reserve arg space */ + |
| 1 /* Method* */) * kPointerSize, kStackAlignment); |
| method->SetFrameSizeInBytes(frame_size); |
| method->SetCoreSpillMask(core_spills); |
| method->SetFpSpillMask(0); |
| } else if (instruction_set == kX86) { |
| uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI); |
| uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX); |
| uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) | |
| (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save |
| size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ + |
| 1 /* Method* */) * kPointerSize, kStackAlignment); |
| method->SetFrameSizeInBytes(frame_size); |
| method->SetCoreSpillMask(core_spills); |
| method->SetFpSpillMask(0); |
| } else { |
| UNIMPLEMENTED(FATAL); |
| } |
| return method.get(); |
| } |
| |
| void Runtime::SetCalleeSaveMethod(AbstractMethod* method, CalleeSaveType type) { |
| DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType)); |
| callee_save_methods_[type] = method; |
| } |
| |
| void Runtime::EnableMethodTracing(Trace* trace) { |
| CHECK(!IsMethodTracingActive()); |
| if (instrumentation_ == NULL) { |
| instrumentation_ = new Instrumentation(); |
| } |
| instrumentation_->SetTrace(trace); |
| } |
| |
| void Runtime::DisableMethodTracing() { |
| CHECK(IsMethodTracingActive()); |
| instrumentation_->RemoveTrace(); |
| } |
| |
| bool Runtime::IsMethodTracingActive() const { |
| return instrumentation_ != NULL && instrumentation_->GetTrace() != NULL; |
| } |
| |
| Instrumentation* Runtime::GetInstrumentation() const { |
| CHECK(IsMethodTracingActive()); |
| return instrumentation_; |
| } |
| |
| const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) { |
| if (class_loader == NULL) { |
| return GetClassLinker()->GetBootClassPath(); |
| } |
| CHECK(UseCompileTimeClassPath()); |
| CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader); |
| CHECK(it != compile_time_class_paths_.end()); |
| return it->second; |
| } |
| |
| void Runtime::SetCompileTimeClassPath(jobject class_loader, std::vector<const DexFile*>& class_path) { |
| CHECK(!IsStarted()); |
| use_compile_time_class_path_ = true; |
| compile_time_class_paths_.Put(class_loader, class_path); |
| } |
| |
| } // namespace art |