| /* |
| * 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. |
| */ |
| |
| #ifndef SHARE_VM_AOT_AOTCODEHEAP_HPP |
| #define SHARE_VM_AOT_AOTCODEHEAP_HPP |
| |
| #include "aot/aotCompiledMethod.hpp" |
| #include "classfile/symbolTable.hpp" |
| #include "oops/metadata.hpp" |
| #include "oops/method.hpp" |
| |
| enum CodeState { |
| not_set = 0, // _aot fields is not set yet |
| in_use = 1, // _aot field is set to corresponding AOTCompiledMethod |
| invalid = 2 // AOT code is invalidated because dependencies failed |
| }; |
| |
| typedef struct { |
| AOTCompiledMethod* _aot; |
| CodeState _state; // State change cases: not_set->in_use, not_set->invalid |
| } CodeToAMethod; |
| |
| class ClassLoaderData; |
| |
| class AOTClass { |
| public: |
| ClassLoaderData* _classloader; |
| }; |
| |
| typedef struct { |
| int _name_offset; |
| int _code_offset; |
| int _meta_offset; |
| int _metadata_got_offset; |
| int _metadata_got_size; |
| int _code_id; |
| } AOTMethodOffsets; |
| |
| typedef struct { |
| const char* _name; |
| address _code; |
| aot_metadata* _meta; |
| jlong* _state_adr; |
| address _metadata_table; |
| int _metadata_size; |
| } AOTMethodData; |
| |
| typedef struct { |
| int _got_index; |
| int _class_id; |
| int _compiled_methods_offset; |
| int _dependent_methods_offset; |
| uint64_t _fingerprint; |
| } AOTKlassData; |
| |
| typedef struct { |
| int _version; |
| int _class_count; |
| int _method_count; |
| int _metaspace_got_size; |
| int _metadata_got_size; |
| int _oop_got_size; |
| int _jvm_version_offset; |
| |
| enum { |
| AOT_SHARED_VERSION = 1 |
| }; |
| } AOTHeader; |
| |
| typedef struct { |
| enum { CONFIG_SIZE = 12 + 7 * 4 }; |
| int _config_size; |
| int _narrowOopShift; |
| int _narrowKlassShift; |
| int _contendedPaddingWidth; |
| int _fieldsAllocationStyle; |
| int _objectAlignment; |
| int _codeSegmentSize; |
| // byte[11] array map to boolean values here |
| bool _debug_VM; |
| bool _useCompressedOops; |
| bool _useCompressedClassPointers; |
| bool _compactFields; |
| bool _useG1GC; |
| bool _useCMSGC; |
| bool _useTLAB; |
| bool _useBiasedLocking; |
| bool _tieredAOT; |
| bool _enableContended; |
| bool _restrictContended; |
| bool _omitAssertions; |
| } AOTConfiguration; |
| |
| class AOTLib : public CHeapObj<mtCode> { |
| static bool _narrow_oop_shift_initialized; |
| static int _narrow_oop_shift; |
| static int _narrow_klass_shift; |
| |
| bool _valid; |
| void* _dl_handle; |
| const int _dso_id; |
| const char* _name; |
| // VM configuration during AOT compilation |
| AOTConfiguration* _config; |
| AOTHeader* _header; |
| |
| void handle_config_error(const char* format, ...) ATTRIBUTE_PRINTF(2, 3); |
| public: |
| AOTLib(void* handle, const char* name, int dso_id); |
| virtual ~AOTLib(); |
| static int narrow_oop_shift() { return _narrow_oop_shift; } |
| static int narrow_klass_shift() { return _narrow_klass_shift; } |
| static bool narrow_oop_shift_initialized() { return _narrow_oop_shift_initialized; } |
| |
| bool is_valid() const { |
| return _valid; |
| } |
| const char* name() const { |
| return _name; |
| } |
| void* dl_handle() const { |
| return _dl_handle; |
| } |
| int id() const { |
| return _dso_id; |
| } |
| AOTHeader* header() const { |
| return _header; |
| } |
| AOTConfiguration* config() const { |
| return _config; |
| } |
| void verify_config(); |
| void verify_flag(bool aot_flag, bool flag, const char* name); |
| void verify_flag(int aot_flag, int flag, const char* name); |
| |
| address load_symbol(const char *name); |
| }; |
| |
| |
| class AOTCodeHeap : public CodeHeap { |
| AOTLib* _lib; |
| int _aot_id; |
| |
| int _class_count; |
| int _method_count; |
| AOTClass* _classes; |
| CodeToAMethod* _code_to_aot; |
| |
| address _code_space; |
| address _code_segments; |
| jlong* _method_state; |
| |
| |
| // Collect metaspace info: names -> address in .got section |
| const char* _metaspace_names; |
| address _method_metadata; |
| |
| address _methods_offsets; |
| address _klasses_offsets; |
| address _dependencies; |
| |
| Metadata** _metaspace_got; |
| Metadata** _metadata_got; |
| oop* _oop_got; |
| |
| int _metaspace_got_size; |
| int _metadata_got_size; |
| int _oop_got_size; |
| |
| // Collect stubs info |
| int* _stubs_offsets; |
| |
| address _low_boundary; |
| |
| bool _lib_symbols_initialized; |
| |
| void adjust_boundaries(AOTCompiledMethod* method) { |
| address low = _low_boundary; |
| if (method->code_begin() < low) { |
| low = method->code_begin(); |
| } |
| address high = high_boundary(); |
| if (method->code_end() > high) { |
| high = method->code_end(); |
| } |
| assert(_method_count > 0, "methods count should be set already"); |
| |
| _low_boundary = low; |
| _memory.set_high_boundary((char *)high); |
| _memory.set_high((char *)high); |
| } |
| |
| void register_stubs(); |
| |
| void link_shared_runtime_symbols(); |
| void link_stub_routines_symbols(); |
| void link_os_symbols(); |
| void link_graal_runtime_symbols(); |
| |
| void link_global_lib_symbols(); |
| void link_primitive_array_klasses(); |
| void publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id); |
| |
| |
| AOTCompiledMethod* next_in_use_at(int index) const; |
| |
| // Find klass in SystemDictionary for aot metadata. |
| static Klass* lookup_klass(const char* name, int len, const Method* method, Thread* THREAD); |
| public: |
| AOTCodeHeap(AOTLib* lib); |
| virtual ~AOTCodeHeap(); |
| |
| address low_boundary() const { return _low_boundary; } |
| address high_boundary() const { return (address)CodeHeap::high(); } |
| |
| bool contains(const void* p) const { |
| bool result = (low_boundary() <= p) && (p < high_boundary()); |
| assert(!result || (_method_count > 0), ""); |
| assert(result == CodeHeap::contains(p), ""); |
| return result; |
| } |
| AOTCompiledMethod* find_aot(address p) const; |
| |
| virtual void* find_start(void* p) const; |
| virtual CodeBlob* find_blob_unsafe(void* start) const; |
| virtual void* first() const; |
| virtual void* next(void *p) const; |
| |
| AOTKlassData* find_klass(InstanceKlass* ik); |
| bool load_klass_data(instanceKlassHandle kh, Thread* thread); |
| Klass* get_klass_from_got(const char* klass_name, int klass_len, const Method* method); |
| void sweep_dependent_methods(AOTKlassData* klass_data); |
| bool is_dependent_method(Klass* dependee, AOTCompiledMethod* aot); |
| |
| const char* get_name_at(int offset) { |
| return _metaspace_names + offset; |
| } |
| |
| void oops_do(OopClosure* f); |
| void metadata_do(void f(Metadata*)); |
| void got_metadata_do(void f(Metadata*)); |
| |
| #ifdef ASSERT |
| bool got_contains(Metadata **p) { |
| return (p >= &_metadata_got[0] && p < &_metadata_got[_metadata_got_size]) || |
| (p >= &_metaspace_got[0] && p < &_metaspace_got[_metaspace_got_size]); |
| } |
| #endif |
| |
| int dso_id() const { return _lib->id(); } |
| int aot_id() const { return _aot_id; } |
| |
| int method_count() { return _method_count; } |
| |
| AOTCompiledMethod* get_code_desc_at_index(int index) { |
| if (index < _method_count && _code_to_aot[index]._state == in_use) { |
| AOTCompiledMethod* m = _code_to_aot[index]._aot; |
| assert(m != NULL, "AOT method should be set"); |
| if (!m->is_runtime_stub()) { |
| return m; |
| } |
| } |
| return NULL; |
| } |
| |
| static Method* find_method(KlassHandle klass, Thread* thread, const char* method_name); |
| |
| void cleanup_inline_caches(); |
| |
| DEBUG_ONLY( int verify_icholder_relocations(); ) |
| |
| void flush_evol_dependents_on(instanceKlassHandle dependee); |
| |
| void alive_methods_do(void f(CompiledMethod* nm)); |
| |
| #ifndef PRODUCT |
| static int klasses_seen; |
| static int aot_klasses_found; |
| static int aot_klasses_fp_miss; |
| static int aot_klasses_cl_miss; |
| static int aot_methods_found; |
| |
| static void print_statistics(); |
| #endif |
| }; |
| |
| #endif // SHARE_VM_AOT_AOTCODEHEAP_HPP |