| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include "precompiled.hpp" |
| |
| #include "aot/aotCodeHeap.hpp" |
| #include "aot/aotLoader.hpp" |
| #include "classfile/javaAssertions.hpp" |
| #include "gc/g1/heapRegion.hpp" |
| #include "gc/shared/gcLocker.hpp" |
| #include "interpreter/abstractInterpreter.hpp" |
| #include "jvmci/compilerRuntime.hpp" |
| #include "jvmci/jvmciRuntime.hpp" |
| #include "oops/method.hpp" |
| #include "runtime/os.hpp" |
| #include "runtime/sharedRuntime.hpp" |
| #include "runtime/vm_operations.hpp" |
| |
| bool AOTLib::_narrow_oop_shift_initialized = false; |
| int AOTLib::_narrow_oop_shift = 0; |
| int AOTLib::_narrow_klass_shift = 0; |
| |
| address AOTLib::load_symbol(const char *name) { |
| address symbol = (address) dlsym(_dl_handle, name); |
| if (symbol == NULL) { |
| tty->print_cr("Shared file %s error: missing %s", _name, name); |
| vm_exit(1); |
| } |
| return symbol; |
| } |
| |
| Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) { |
| AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name); |
| Klass* k = (Klass*)_metaspace_got[klass_data->_got_index]; |
| if (k == NULL) { |
| Thread* thread = Thread::current(); |
| k = lookup_klass(klass_name, klass_len, method, thread); |
| // Note, exceptions are cleared. |
| if (k == NULL) { |
| fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name); |
| vm_exit(1); |
| } |
| _metaspace_got[klass_data->_got_index] = k; |
| } |
| return k; |
| } |
| |
| Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) { |
| ResourceMark rm(thread); |
| assert(method != NULL, "incorrect call parameter"); |
| methodHandle caller(thread, (Method*)method); |
| |
| // Use class loader of aot method. |
| Handle loader(thread, caller->method_holder()->class_loader()); |
| Handle protection_domain(thread, caller->method_holder()->protection_domain()); |
| |
| // Ignore wrapping L and ; |
| if (name[0] == 'L') { |
| assert(len > 2, "small name %s", name); |
| name++; |
| len -= 2; |
| } |
| TempNewSymbol sym = SymbolTable::probe(name, len); |
| if (sym == NULL) { |
| log_debug(aot, class, resolve)("Probe failed for AOT class %s", name); |
| return NULL; |
| } |
| Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread); |
| assert(!thread->has_pending_exception(), "should not throw"); |
| |
| if (k != NULL) { |
| log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name()); |
| } |
| return k; |
| } |
| |
| void AOTLib::handle_config_error(const char* format, ...) { |
| if (PrintAOT) { |
| va_list ap; |
| va_start(ap, format); |
| tty->vprint_cr(format, ap); |
| va_end(ap); |
| } |
| if (UseAOTStrictLoading) { |
| vm_exit(1); |
| } |
| _valid = false; |
| } |
| |
| void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) { |
| if (_valid && aot_flag != flag) { |
| handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false")); |
| } |
| } |
| |
| void AOTLib::verify_flag(int aot_flag, int flag, const char* name) { |
| if (_valid && aot_flag != flag) { |
| handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag); |
| } |
| } |
| |
| void AOTLib::verify_config() { |
| GrowableArray<AOTLib*>* libraries = AOTLoader::libraries(); |
| for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) { |
| if ((*lib)->_config == _config) { |
| handle_config_error("AOT library %s already loaded.", (*lib)->_name); |
| return; |
| } |
| } |
| |
| if (_header->_version != AOTHeader::AOT_SHARED_VERSION) { |
| handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION); |
| return; |
| } |
| |
| const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2; |
| if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) { |
| handle_config_error("JVM version '%s' recorded in the shared file %s does not match current version '%s'", aot_jvm_version, _name, VM_Version::jre_release_version()); |
| return; |
| } |
| |
| // Debug VM has different layout of runtime and metadata structures |
| #ifdef ASSERT |
| verify_flag(_config->_debug_VM, true, "Debug VM version"); |
| #else |
| verify_flag(!(_config->_debug_VM), true, "Product VM version"); |
| #endif |
| // Check configuration size |
| verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size"); |
| |
| // Check flags |
| verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops"); |
| verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers"); |
| verify_flag(_config->_useG1GC, UseG1GC, "UseG1GC"); |
| verify_flag(_config->_useCMSGC, UseConcMarkSweepGC, "UseConcMarkSweepGC"); |
| verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB"); |
| verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking"); |
| verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes"); |
| verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth"); |
| verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle"); |
| verify_flag(_config->_compactFields, CompactFields, "CompactFields"); |
| verify_flag(_config->_enableContended, EnableContended, "EnableContended"); |
| verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended"); |
| |
| if (!TieredCompilation && _config->_tieredAOT) { |
| handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name); |
| } |
| |
| // Shifts are static values which initialized by 0 until java heap initialization. |
| // AOT libs are loaded before heap initialized so shift values are not set. |
| // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded. |
| // Set shifts value based on first AOT library config. |
| if (UseCompressedOops && _valid) { |
| if (!_narrow_oop_shift_initialized) { |
| _narrow_oop_shift = _config->_narrowOopShift; |
| if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set |
| _narrow_klass_shift = _config->_narrowKlassShift; |
| } |
| _narrow_oop_shift_initialized = true; |
| } else { |
| verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift"); |
| if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set |
| verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift"); |
| } |
| } |
| } |
| } |
| |
| AOTLib::~AOTLib() { |
| free((void*) _name); |
| } |
| |
| AOTCodeHeap::~AOTCodeHeap() { |
| if (_classes != NULL) { |
| FREE_C_HEAP_ARRAY(AOTClass, _classes); |
| } |
| if (_code_to_aot != NULL) { |
| FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot); |
| } |
| } |
| |
| AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) { |
| _name = (const char*) strdup(name); |
| |
| // Verify that VM runs with the same parameters as AOT tool. |
| _config = (AOTConfiguration*) load_symbol("JVM.config"); |
| _header = (AOTHeader*) load_symbol("JVM.header"); |
| |
| verify_config(); |
| |
| if (!_valid && PrintAOT) { |
| tty->print("%7d ", (int) tty->time_stamp().milliseconds()); |
| tty->print_cr("%4d skipped %s aot library", _dso_id, _name); |
| } |
| } |
| |
| AOTCodeHeap::AOTCodeHeap(AOTLib* lib) : |
| CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) { |
| assert(_lib->is_valid(), "invalid library"); |
| |
| _lib_symbols_initialized = false; |
| _aot_id = 0; |
| |
| _class_count = _lib->header()->_class_count; |
| _method_count = _lib->header()->_method_count; |
| |
| // Collect metaspace info: names -> address in .got section |
| _metaspace_names = (const char*) _lib->load_symbol("JVM.metaspace.names"); |
| _method_metadata = (address) _lib->load_symbol("JVM.method.metadata"); |
| _methods_offsets = (address) _lib->load_symbol("JVM.methods.offsets"); |
| _klasses_offsets = (address) _lib->load_symbol("JVM.klasses.offsets"); |
| _dependencies = (address) _lib->load_symbol("JVM.klasses.dependencies"); |
| _code_space = (address) _lib->load_symbol("JVM.text"); |
| |
| // First cell is number of elements. |
| jlong* got_sect; |
| _metaspace_got = (Metadata**) _lib->load_symbol("JVM.metaspace.got"); |
| _metaspace_got_size = _lib->header()->_metaspace_got_size; |
| |
| _metadata_got = (Metadata**) _lib->load_symbol("JVM.metadata.got"); |
| _metadata_got_size = _lib->header()->_metadata_got_size; |
| |
| _oop_got = (oop*) _lib->load_symbol("JVM.oop.got"); |
| _oop_got_size = _lib->header()->_oop_got_size; |
| |
| // Collect stubs info |
| _stubs_offsets = (int*) _lib->load_symbol("JVM.stubs.offsets"); |
| |
| // code segments table |
| _code_segments = (address) _lib->load_symbol("JVM.code.segments"); |
| |
| // method state |
| _method_state = (jlong*) _lib->load_symbol("JVM.method.state"); |
| |
| // Create a table for mapping classes |
| _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode); |
| memset(_classes, 0, _class_count * sizeof(AOTClass)); |
| |
| // Create table for searching AOTCompiledMethod based on pc. |
| _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode); |
| memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod)); |
| |
| _low_boundary = _code_space; |
| _memory.set_low_boundary((char *)_code_space); |
| _memory.set_high_boundary((char *)_code_space); |
| _memory.set_low((char *)_code_space); |
| _memory.set_high((char *)_code_space); |
| |
| _segmap.set_low_boundary((char *)_code_segments); |
| _segmap.set_low((char *)_code_segments); |
| |
| _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize); |
| |
| // Register aot stubs |
| register_stubs(); |
| |
| if (PrintAOT || (PrintCompilation && PrintAOT)) { |
| tty->print("%7d ", (int) tty->time_stamp().milliseconds()); |
| tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name()); |
| } |
| } |
| |
| void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) { |
| // The method may be explicitly excluded by the user. |
| // Or Interpreter uses an intrinsic for this method. |
| if (CompilerOracle::should_exclude(mh) || !AbstractInterpreter::can_be_compiled(mh)) { |
| return; |
| } |
| |
| address code = method_data->_code; |
| const char* name = method_data->_name; |
| aot_metadata* meta = method_data->_meta; |
| |
| if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) { |
| // When the AOT compiler compiles something big we fail to generate metadata |
| // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end. |
| // In all successful cases we always have 2 entries of scope pcs. |
| log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string()); |
| _code_to_aot[code_id]._state = invalid; |
| return; |
| } |
| |
| jlong* state_adr = &_method_state[code_id]; |
| address metadata_table = method_data->_metadata_table; |
| int metadata_size = method_data->_metadata_size; |
| assert(code_id < _method_count, "sanity"); |
| _aot_id++; |
| |
| #ifdef ASSERT |
| if (_aot_id > CIStop || _aot_id < CIStart) { |
| // Skip compilation |
| return; |
| } |
| #endif |
| // Check one more time. |
| if (_code_to_aot[code_id]._state == invalid) { |
| return; |
| } |
| AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id); |
| assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); |
| _code_to_aot[code_id]._aot = aot; // Should set this first |
| if (Atomic::cmpxchg(in_use, (jint*)&_code_to_aot[code_id]._state, not_set) != not_set) { |
| _code_to_aot[code_id]._aot = NULL; // Clean |
| } else { // success |
| // Publish method |
| #ifdef TIERED |
| mh->set_aot_code(aot); |
| #endif |
| Method::set_code(mh, aot); |
| if (PrintAOT || (PrintCompilation && PrintAOT)) { |
| aot->print_on(tty, NULL); |
| } |
| // Publish oop only after we are visible to CompiledMethodIterator |
| aot->set_oop(mh()->method_holder()->klass_holder()); |
| } |
| } |
| |
| void AOTCodeHeap::link_primitive_array_klasses() { |
| ResourceMark rm; |
| for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) { |
| BasicType t = (BasicType)i; |
| if (is_java_primitive(t)) { |
| const Klass* arr_klass = Universe::typeArrayKlassObj(t); |
| AOTKlassData* klass_data = (AOTKlassData*) dlsym(_lib->dl_handle(), arr_klass->signature_name()); |
| if (klass_data != NULL) { |
| // Set both GOT cells, resolved and initialized klass pointers. |
| // _got_index points to second cell - resolved klass pointer. |
| _metaspace_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized |
| _metaspace_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved |
| if (PrintAOT) { |
| tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name()); |
| } |
| } |
| } |
| } |
| } |
| |
| void AOTCodeHeap::register_stubs() { |
| int stubs_count = _stubs_offsets[0]; // contains number |
| _stubs_offsets++; |
| AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets; |
| for (int i = 0; i < stubs_count; ++i) { |
| const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset; |
| address entry = _code_space + stub_offsets[i]._code_offset; |
| aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset); |
| address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset; |
| int metadata_size = stub_offsets[i]._metadata_got_size; |
| int code_id = stub_offsets[i]._code_id; |
| assert(code_id < _method_count, "sanity"); |
| jlong* state_adr = &_method_state[code_id]; |
| int len = build_u2_from((address)stub_name); |
| stub_name += 2; |
| char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode); |
| if (full_name == NULL) { // No memory? |
| break; |
| } |
| memcpy(full_name, "AOT ", 4); |
| memcpy(full_name+4, stub_name, len); |
| full_name[len+4] = 0; |
| guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name); |
| AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i); |
| assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); |
| _code_to_aot[code_id]._aot = aot; |
| if (Atomic::cmpxchg(in_use, (jint*)&_code_to_aot[code_id]._state, not_set) != not_set) { |
| fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state); |
| } |
| // Adjust code buffer boundaries only for stubs because they are last in the buffer. |
| adjust_boundaries(aot); |
| if (PrintAOT && Verbose) { |
| aot->print_on(tty, NULL); |
| } |
| } |
| } |
| |
| #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \ |
| { \ |
| char* error; \ |
| /* Clear any existing error */ \ |
| dlerror(); \ |
| AOTSYMTYPE * adr = (AOTSYMTYPE *) dlsym(_lib->dl_handle(), AOTSYMNAME); \ |
| /* Check for any dlsym lookup error */ \ |
| error = dlerror(); \ |
| guarantee(error == NULL, "%s", error); \ |
| *adr = (AOTSYMTYPE) VMSYMVAL; \ |
| } |
| |
| void AOTCodeHeap::link_graal_runtime_symbols() { |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_thread_is_interrupted", address, JVMCIRuntime::thread_is_interrupted); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error); |
| } |
| |
| void AOTCodeHeap::link_shared_runtime_symbols() { |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event); |
| |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10); |
| } |
| |
| void AOTCodeHeap::link_stub_routines_symbols() { |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit); |
| |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit); |
| |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit); |
| |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit); |
| |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy); |
| |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr); |
| |
| |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen); |
| |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch); |
| |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry); |
| |
| } |
| |
| void AOTCodeHeap::link_os_symbols() { |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos); |
| } |
| |
| /* |
| * Link any global symbols in precompiled DSO with dlopen() _dl_handle |
| * dso_handle. |
| */ |
| |
| void AOTCodeHeap::link_global_lib_symbols() { |
| if (!_lib_symbols_initialized) { |
| _lib_symbols_initialized = true; |
| |
| CollectedHeap* heap = Universe::heap(); |
| CardTableModRefBS* ct = (CardTableModRefBS*)(heap->barrier_set()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, ct->byte_map_base); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL)); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL)); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, Universe::narrow_klass_base()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, Universe::narrow_oop_base()); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes); |
| SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc()); |
| link_shared_runtime_symbols(); |
| link_stub_routines_symbols(); |
| link_os_symbols(); |
| link_graal_runtime_symbols(); |
| |
| // Link primitive array klasses. |
| link_primitive_array_klasses(); |
| } |
| } |
| |
| #ifndef PRODUCT |
| int AOTCodeHeap::klasses_seen = 0; |
| int AOTCodeHeap::aot_klasses_found = 0; |
| int AOTCodeHeap::aot_klasses_fp_miss = 0; |
| int AOTCodeHeap::aot_klasses_cl_miss = 0; |
| int AOTCodeHeap::aot_methods_found = 0; |
| |
| void AOTCodeHeap::print_statistics() { |
| tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found); |
| tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss); |
| } |
| #endif |
| |
| Method* AOTCodeHeap::find_method(KlassHandle klass, Thread* thread, const char* method_name) { |
| int method_name_len = build_u2_from((address)method_name); |
| method_name += 2; |
| const char* signature_name = method_name + method_name_len; |
| int signature_name_len = build_u2_from((address)signature_name); |
| signature_name += 2; |
| // The class should have been loaded so the method and signature should already be |
| // in the symbol table. If they're not there, the method doesn't exist. |
| TempNewSymbol name = SymbolTable::probe(method_name, method_name_len); |
| TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len); |
| |
| Method* m; |
| if (name == NULL || signature == NULL) { |
| m = NULL; |
| } else if (name == vmSymbols::object_initializer_name() || |
| name == vmSymbols::class_initializer_name()) { |
| // Never search superclasses for constructors |
| if (klass->is_instance_klass()) { |
| m = InstanceKlass::cast(klass())->find_method(name, signature); |
| } else { |
| m = NULL; |
| } |
| } else { |
| m = klass->lookup_method(name, signature); |
| if (m == NULL && klass->is_instance_klass()) { |
| m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature); |
| } |
| } |
| if (m == NULL) { |
| // Fatal error because we assume classes and methods should not be changed since aot compilation. |
| const char* klass_name = klass->external_name(); |
| int klass_len = (int)strlen(klass_name); |
| char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1); |
| memcpy(meta_name, klass_name, klass_len); |
| meta_name[klass_len] = '.'; |
| memcpy(&meta_name[klass_len + 1], method_name, method_name_len); |
| memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len); |
| meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0'; |
| Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name); |
| java_lang_Throwable::print(exception, tty); |
| tty->cr(); |
| java_lang_Throwable::print_stack_trace(exception(), tty); |
| tty->cr(); |
| fatal("Failed to find method '%s'", meta_name); |
| } |
| NOT_PRODUCT( aot_methods_found++; ) |
| return m; |
| } |
| |
| AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) { |
| ResourceMark rm; |
| AOTKlassData* klass_data = (AOTKlassData*) dlsym(_lib->dl_handle(), ik->signature_name()); |
| return klass_data; |
| } |
| |
| bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) { |
| InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
| AOTKlassData* klass_data = find_klass(dependee_ik); |
| if (klass_data == NULL) { |
| return false; // no AOT records for this class - no dependencies |
| } |
| if (!dependee_ik->has_passed_fingerprint_check()) { |
| return false; // different class |
| } |
| |
| int methods_offset = klass_data->_dependent_methods_offset; |
| if (methods_offset >= 0) { |
| address methods_cnt_adr = _dependencies + methods_offset; |
| int methods_cnt = *(int*)methods_cnt_adr; |
| int* indexes = (int*)(methods_cnt_adr + 4); |
| for (int i = 0; i < methods_cnt; ++i) { |
| int code_id = indexes[i]; |
| if (_code_to_aot[code_id]._aot == aot) { |
| return true; // found dependent method |
| } |
| } |
| } |
| return false; |
| } |
| |
| void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) { |
| // Make dependent methods non_entrant forever. |
| int methods_offset = klass_data->_dependent_methods_offset; |
| if (methods_offset >= 0) { |
| int marked = 0; |
| address methods_cnt_adr = _dependencies + methods_offset; |
| int methods_cnt = *(int*)methods_cnt_adr; |
| int* indexes = (int*)(methods_cnt_adr + 4); |
| for (int i = 0; i < methods_cnt; ++i) { |
| int code_id = indexes[i]; |
| // Invalidate aot code. |
| if (Atomic::cmpxchg(invalid, (jint*)&_code_to_aot[code_id]._state, not_set) != not_set) { |
| if (_code_to_aot[code_id]._state == in_use) { |
| AOTCompiledMethod* aot = _code_to_aot[code_id]._aot; |
| assert(aot != NULL, "aot should be set"); |
| if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs. |
| aot->mark_for_deoptimization(false); |
| marked++; |
| } |
| } |
| } |
| } |
| if (marked > 0) { |
| VM_Deoptimize op; |
| VMThread::execute(&op); |
| } |
| } |
| } |
| |
| bool AOTCodeHeap::load_klass_data(instanceKlassHandle kh, Thread* thread) { |
| ResourceMark rm; |
| |
| NOT_PRODUCT( klasses_seen++; ) |
| |
| AOTKlassData* klass_data = find_klass(kh()); |
| if (klass_data == NULL) { |
| return false; |
| } |
| |
| if (!kh->has_passed_fingerprint_check()) { |
| NOT_PRODUCT( aot_klasses_fp_miss++; ) |
| log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, |
| kh->internal_name(), kh->is_shared() ? " (shared)" : "", |
| _lib->name(), p2i(thread)); |
| sweep_dependent_methods(klass_data); |
| return false; |
| } |
| |
| if (kh->has_been_redefined()) { |
| log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT, |
| kh->internal_name(), kh->is_shared() ? " (shared)" : "", |
| _lib->name(), p2i(thread)); |
| sweep_dependent_methods(klass_data); |
| return false; |
| } |
| |
| assert(klass_data->_class_id < _class_count, "invalid class id"); |
| AOTClass* aot_class = &_classes[klass_data->_class_id]; |
| if (aot_class->_classloader != NULL && aot_class->_classloader != kh->class_loader_data()) { |
| log_trace(aot, class, load)("class %s in %s already loaded for classloader %p vs %p tid=" INTPTR_FORMAT, |
| kh->internal_name(), _lib->name(), aot_class->_classloader, kh->class_loader_data(), p2i(thread)); |
| NOT_PRODUCT( aot_klasses_cl_miss++; ) |
| return false; |
| } |
| |
| if (_lib->config()->_omitAssertions && JavaAssertions::enabled(kh->name()->as_C_string(), kh->class_loader() == NULL)) { |
| log_trace(aot, class, load)("class %s in %s does not have java assertions in compiled code, but assertions are enabled for this execution.", kh->internal_name(), _lib->name()); |
| sweep_dependent_methods(klass_data); |
| return false; |
| } |
| |
| NOT_PRODUCT( aot_klasses_found++; ) |
| |
| log_trace(aot, class, load)("found %s in %s for classloader %p tid=" INTPTR_FORMAT, kh->internal_name(), _lib->name(), kh->class_loader_data(), p2i(thread)); |
| |
| aot_class->_classloader = kh->class_loader_data(); |
| // Set klass's Resolve (second) got cell. |
| _metaspace_got[klass_data->_got_index] = kh(); |
| |
| // Initialize global symbols of the DSO to the corresponding VM symbol values. |
| link_global_lib_symbols(); |
| |
| int methods_offset = klass_data->_compiled_methods_offset; |
| if (methods_offset >= 0) { |
| address methods_cnt_adr = _methods_offsets + methods_offset; |
| int methods_cnt = *(int*)methods_cnt_adr; |
| // Collect data about compiled methods |
| AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt); |
| AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4); |
| for (int i = 0; i < methods_cnt; ++i) { |
| AOTMethodOffsets* method_offsets = &methods_offsets[i]; |
| int code_id = method_offsets->_code_id; |
| if (_code_to_aot[code_id]._state == invalid) { |
| continue; // skip AOT methods slots which have been invalidated |
| } |
| AOTMethodData* method_data = &methods_data[i]; |
| const char* aot_name = _metaspace_names + method_offsets->_name_offset; |
| method_data->_name = aot_name; |
| method_data->_code = _code_space + method_offsets->_code_offset; |
| method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset); |
| method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset; |
| method_data->_metadata_size = method_offsets->_metadata_got_size; |
| // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V" |
| int klass_len = build_u2_from((address)aot_name); |
| const char* method_name = aot_name + 2 + klass_len; |
| Method* m = AOTCodeHeap::find_method(kh, thread, method_name); |
| methodHandle mh(thread, m); |
| if (mh->code() != NULL) { // Does it have already compiled code? |
| continue; // Don't overwrite |
| } |
| publish_aot(mh, method_data, code_id); |
| } |
| } |
| return true; |
| } |
| |
| AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const { |
| for (int index = start; index < _method_count; index++) { |
| if (_code_to_aot[index]._state != in_use) { |
| continue; // Skip uninitialized entries. |
| } |
| AOTCompiledMethod* aot = _code_to_aot[index]._aot; |
| return aot; |
| } |
| return NULL; |
| } |
| |
| void* AOTCodeHeap::first() const { |
| return next_in_use_at(0); |
| } |
| |
| void* AOTCodeHeap::next(void* p) const { |
| AOTCompiledMethod *aot = (AOTCompiledMethod *)p; |
| int next_index = aot->method_index() + 1; |
| assert(next_index <= _method_count, ""); |
| if (next_index == _method_count) { |
| return NULL; |
| } |
| return next_in_use_at(next_index); |
| } |
| |
| void* AOTCodeHeap::find_start(void* p) const { |
| if (!contains(p)) { |
| return NULL; |
| } |
| size_t offset = pointer_delta(p, low_boundary(), 1); |
| // Use segments table |
| size_t seg_idx = offset / _lib->config()->_codeSegmentSize; |
| if ((int)(_code_segments[seg_idx]) == 0xff) { |
| return NULL; |
| } |
| while (_code_segments[seg_idx] > 0) { |
| seg_idx -= (int)_code_segments[seg_idx]; |
| } |
| int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize; |
| int aot_index = *(int*)(_code_space + code_offset); |
| AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot; |
| assert(aot != NULL, "should find registered aot method"); |
| return aot; |
| } |
| |
| AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const { |
| assert(contains(p), "should be here"); |
| return (AOTCompiledMethod *)find_start(p); |
| } |
| |
| CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const { |
| return (CodeBlob*)AOTCodeHeap::find_start(start); |
| } |
| |
| void AOTCodeHeap::oops_do(OopClosure* f) { |
| for (int i = 0; i < _oop_got_size; i++) { |
| oop* p = &_oop_got[i]; |
| if (*p == NULL) continue; // skip non-oops |
| f->do_oop(p); |
| } |
| for (int index = 0; index < _method_count; index++) { |
| if (_code_to_aot[index]._state != in_use) { |
| continue; // Skip uninitialized entries. |
| } |
| AOTCompiledMethod* aot = _code_to_aot[index]._aot; |
| aot->do_oops(f); |
| } |
| } |
| |
| // Yes, this is faster than going through the relocations, |
| // but there are two problems: |
| // 1) GOT slots are sometimes patched with non-Metadata values |
| // 2) We don't want to scan metadata for dead methods |
| // Unfortunately we don't know if the metadata belongs to |
| // live aot methods or not, so process them all. If this |
| // is for mark_on_stack, some old methods may stick around |
| // forever instead of getting cleaned up. |
| void AOTCodeHeap::got_metadata_do(void f(Metadata*)) { |
| for (int i = 1; i < _metaspace_got_size; i++) { |
| Metadata** p = &_metaspace_got[i]; |
| Metadata* md = *p; |
| if (md == NULL) continue; // skip non-oops |
| intptr_t meta = (intptr_t)md; |
| if (meta == -1) continue; // skip non-oops |
| if (Metaspace::contains(md)) { |
| f(md); |
| } |
| } |
| for (int i = 1; i < _metadata_got_size; i++) { |
| Metadata** p = &_metadata_got[i]; |
| Metadata* md = *p; |
| intptr_t meta = (intptr_t)md; |
| if ((meta & 1) == 1) { |
| // already resolved |
| md = (Metadata*)(meta & ~1); |
| } else { |
| continue; |
| } |
| if (md == NULL) continue; // skip non-oops |
| if (Metaspace::contains(md)) { |
| f(md); |
| } |
| } |
| } |
| |
| void AOTCodeHeap::cleanup_inline_caches() { |
| for (int index = 0; index < _method_count; index++) { |
| if (_code_to_aot[index]._state != in_use) { |
| continue; // Skip uninitialized entries. |
| } |
| AOTCompiledMethod* aot = _code_to_aot[index]._aot; |
| aot->cleanup_inline_caches(); |
| } |
| } |
| |
| #ifdef ASSERT |
| int AOTCodeHeap::verify_icholder_relocations() { |
| int count = 0; |
| for (int index = 0; index < _method_count; index++) { |
| if (_code_to_aot[index]._state != in_use) { |
| continue; // Skip uninitialized entries. |
| } |
| AOTCompiledMethod* aot = _code_to_aot[index]._aot; |
| count += aot->verify_icholder_relocations(); |
| } |
| return count; |
| } |
| #endif |
| |
| void AOTCodeHeap::flush_evol_dependents_on(instanceKlassHandle dependee) { |
| for (int index = 0; index < _method_count; index++) { |
| if (_code_to_aot[index]._state != in_use) { |
| continue; // Skip uninitialized entries. |
| } |
| AOTCompiledMethod* aot = _code_to_aot[index]._aot; |
| aot->flush_evol_dependents_on(dependee); |
| } |
| } |
| |
| void AOTCodeHeap::metadata_do(void f(Metadata*)) { |
| for (int index = 0; index < _method_count; index++) { |
| if (_code_to_aot[index]._state != in_use) { |
| continue; // Skip uninitialized entries. |
| } |
| AOTCompiledMethod* aot = _code_to_aot[index]._aot; |
| if (aot->_is_alive()) { |
| aot->metadata_do(f); |
| } |
| } |
| #if 0 |
| // With the marking above, this call doesn't seem to be needed |
| got_metadata_do(f); |
| #endif |
| } |
