| /* |
| * Copyright (c) 2016, 2017, 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_AOTCOMPILEDMETHOD_HPP |
| #define SHARE_VM_AOT_AOTCOMPILEDMETHOD_HPP |
| |
| #include "code/codeCache.hpp" |
| #include "code/compiledIC.hpp" |
| #include "code/compiledMethod.hpp" |
| #include "code/pcDesc.hpp" |
| #include "code/relocInfo.hpp" |
| |
| class AOTCodeHeap; |
| |
| class aot_metadata { |
| private: |
| int _size; |
| int _code_size; |
| int _entry; |
| int _verified_entry; |
| int _exception_handler_offset; |
| int _deopt_handler_offset; |
| int _stubs_offset; |
| int _frame_size; |
| // location in frame (offset for sp) that deopt can store the original |
| // pc during a deopt. |
| int _orig_pc_offset; |
| int _unsafe_access; |
| |
| int _pc_desc_begin; |
| int _scopes_begin; |
| int _reloc_begin; |
| int _exception_table_begin; |
| int _oopmap_begin; |
| address at_offset(size_t offset) const { return ((address) this) + offset; } |
| public: |
| int code_size() const { return _code_size; } |
| int frame_size() const { return _frame_size / HeapWordSize; } |
| PcDesc *scopes_pcs_begin() const { return (PcDesc *) at_offset(_pc_desc_begin); } |
| PcDesc *scopes_pcs_end() const { return (PcDesc *) at_offset(_scopes_begin); } |
| address scopes_data_begin() const { return at_offset(_scopes_begin); } |
| address scopes_data_end() const { return at_offset(_reloc_begin); } |
| relocInfo* relocation_begin() const { return (relocInfo*) at_offset(_reloc_begin); } |
| relocInfo* relocation_end() const { return (relocInfo*) at_offset(_exception_table_begin); } |
| address handler_table_begin () const { return at_offset(_exception_table_begin); } |
| address handler_table_end() const { return at_offset(_oopmap_begin); } |
| |
| address nul_chk_table_begin() const { return at_offset(_oopmap_begin); } |
| address nul_chk_table_end() const { return at_offset(_oopmap_begin); } |
| |
| ImmutableOopMapSet* oopmap_set() const { return (ImmutableOopMapSet*) at_offset(_oopmap_begin); } |
| |
| address consts_begin() const { return at_offset(_size); } |
| address consts_end() const { return at_offset(_size); } |
| int stub_offset() const { return _stubs_offset; } |
| int entry_offset() const { return _entry; } |
| int verified_entry_offset() const { return _verified_entry; } |
| int exception_handler_offset() const { return _exception_handler_offset; } |
| int deopt_handler_offset() const { return _deopt_handler_offset; } |
| int orig_pc_offset() const { return _orig_pc_offset; } |
| |
| int handler_table_size() const { return handler_table_end() - handler_table_begin(); } |
| int nul_chk_table_size() const { return nul_chk_table_end() - nul_chk_table_begin(); } |
| bool has_unsafe_access() const { return _unsafe_access != 0; } |
| |
| }; |
| |
| /* |
| * Use this for AOTCompiledMethods since a lot of the fields in CodeBlob gets the same |
| * value when they come from AOT. code_begin == content_begin, etc... */ |
| class AOTCompiledMethodLayout : public CodeBlobLayout { |
| public: |
| AOTCompiledMethodLayout(address code_begin, address code_end, address relocation_begin, address relocation_end) : |
| CodeBlobLayout( |
| code_begin, // code_begin |
| code_end, // code_end |
| code_begin, // content_begin |
| code_end, // content_end |
| code_end, // data_end |
| relocation_begin, // relocation_begin |
| relocation_end |
| ) { |
| } |
| }; |
| |
| class AOTCompiledMethod : public CompiledMethod, public CHeapObj<mtCode> { |
| private: |
| address _code; |
| aot_metadata* _meta; |
| Metadata** _metadata_got; |
| jlong* _state_adr; // Address of cell to indicate aot method state (in_use or not_entrant) |
| AOTCodeHeap* _heap; // code heap which has this method |
| const char* _name; // For stub: "AOT Stub<name>" for stub, |
| // For nmethod: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V" |
| const int _metadata_size; // size of _metadata_got |
| const int _aot_id; |
| const int _method_index; |
| oop _oop; // method()->method_holder()->klass_holder() |
| |
| address* orig_pc_addr(const frame* fr) { return (address*) ((address)fr->unextended_sp() + _meta->orig_pc_offset()); } |
| bool make_not_entrant_helper(int new_state); |
| |
| public: |
| using CHeapObj<mtCode>::operator new; |
| using CHeapObj<mtCode>::operator delete; |
| |
| int method_index() const { return _method_index; } |
| void set_oop(oop o) { _oop = o; } |
| |
| AOTCompiledMethod(address code, Method* method, aot_metadata* meta, address metadata_got, int metadata_size, jlong* state_adr, AOTCodeHeap* heap, const char* name, int method_index, int aot_id) : |
| CompiledMethod(method, name, compiler_jvmci, // AOT code is generated by JVMCI compiler |
| AOTCompiledMethodLayout(code, code + meta->code_size(), (address) meta->relocation_begin(), (address) meta->relocation_end()), |
| 0 /* frame_complete_offset */, meta->frame_size() /* frame_size */, meta->oopmap_set(), false /* caller_must_gc_arguments */), |
| _code(code), |
| _meta(meta), |
| _metadata_got((Metadata**) metadata_got), |
| _state_adr(state_adr), |
| _heap(heap), |
| _name(name), |
| _metadata_size(metadata_size), |
| _method_index(method_index), |
| _aot_id(aot_id) { |
| |
| _is_far_code = CodeCache::is_far_target(code) || |
| CodeCache::is_far_target(code + meta->code_size()); |
| _exception_cache = NULL; |
| |
| _scopes_data_begin = (address) _meta->scopes_data_begin(); |
| _deopt_handler_begin = (address) _code + _meta->deopt_handler_offset(); |
| _deopt_mh_handler_begin = (address) this; |
| |
| _pc_desc_container.reset_to(scopes_pcs_begin()); |
| |
| // Mark the AOTCompiledMethod as in_use |
| *_state_adr = nmethod::in_use; |
| set_has_unsafe_access(_meta->has_unsafe_access()); |
| _oop = NULL; |
| } |
| |
| virtual bool is_aot() const { return true; } |
| virtual bool is_runtime_stub() const { return is_aot_runtime_stub(); } |
| |
| virtual bool is_compiled() const { return !is_aot_runtime_stub(); } |
| |
| virtual bool is_locked_by_vm() const { return false; } |
| |
| int state() const { return *_state_adr; } |
| |
| // Non-virtual for speed |
| bool _is_alive() const { return state() < zombie; } |
| |
| virtual bool is_zombie() const { return state() == zombie; } |
| virtual bool is_unloaded() const { return state() == unloaded; } |
| virtual bool is_not_entrant() const { return state() == not_entrant || |
| state() == not_used; } |
| virtual bool is_alive() const { return _is_alive(); } |
| virtual bool is_in_use() const { return state() == in_use; } |
| |
| address exception_begin() const { return (address) _code + _meta->exception_handler_offset(); } |
| |
| virtual const char* name() const { return _name; } |
| |
| virtual int compile_id() const { return _aot_id; } |
| |
| void print_on(outputStream* st) const; |
| void print_on(outputStream* st, const char* msg) const; |
| void print() const; |
| |
| virtual void print_value_on(outputStream *stream) const; |
| virtual void print_block_comment(outputStream *stream, address block_begin) const { } |
| virtual void verify() {} |
| |
| virtual int comp_level() const { return CompLevel_aot; } |
| virtual address verified_entry_point() const { return _code + _meta->verified_entry_offset(); } |
| virtual void log_identity(xmlStream* stream) const; |
| virtual void log_state_change() const; |
| virtual bool make_entrant(); |
| virtual bool make_not_entrant() { return make_not_entrant_helper(not_entrant); } |
| virtual bool make_not_used() { return make_not_entrant_helper(not_used); } |
| virtual address entry_point() const { return _code + _meta->entry_offset(); } |
| virtual bool make_zombie() { ShouldNotReachHere(); return false; } |
| virtual bool is_osr_method() const { return false; } |
| virtual int osr_entry_bci() const { ShouldNotReachHere(); return -1; } |
| // AOT compiled methods do not get into zombie state |
| virtual bool can_convert_to_zombie() { return false; } |
| |
| virtual bool is_evol_dependent_on(Klass* dependee); |
| virtual bool is_dependent_on_method(Method* dependee) { return true; } |
| |
| virtual void clear_inline_caches(); |
| |
| virtual void print_pcs() {} |
| |
| virtual address scopes_data_end() const { return _meta->scopes_data_end(); } |
| |
| virtual oop oop_at(int index) const; |
| virtual Metadata* metadata_at(int index) const; |
| |
| virtual PcDesc* scopes_pcs_begin() const { return _meta->scopes_pcs_begin(); } |
| virtual PcDesc* scopes_pcs_end() const { return _meta->scopes_pcs_end(); } |
| |
| virtual address handler_table_begin() const { return _meta->handler_table_begin(); } |
| virtual address handler_table_end() const { return _meta->handler_table_end(); } |
| |
| virtual address nul_chk_table_begin() const { return _meta->nul_chk_table_begin(); } |
| virtual address nul_chk_table_end() const { return _meta->nul_chk_table_end(); } |
| |
| virtual address consts_begin() const { return _meta->consts_begin(); } |
| virtual address consts_end() const { return _meta->consts_end(); } |
| |
| virtual address stub_begin() const { return code_begin() + _meta->stub_offset(); } |
| virtual address stub_end() const { return code_end(); } |
| |
| virtual oop* oop_addr_at(int index) const { ShouldNotReachHere(); return NULL; } |
| virtual Metadata** metadata_addr_at(int index) const { ShouldNotReachHere(); return NULL; } |
| |
| // Accessor/mutator for the original pc of a frame before a frame was deopted. |
| address get_original_pc(const frame* fr) { return *orig_pc_addr(fr); } |
| void set_original_pc(const frame* fr, address pc) { *orig_pc_addr(fr) = pc; } |
| |
| #ifdef HOTSWAP |
| // Flushing and deoptimization in case of evolution |
| void flush_evol_dependents_on(InstanceKlass* dependee); |
| #endif // HOTSWAP |
| |
| virtual void metadata_do(void f(Metadata*)); |
| |
| bool metadata_got_contains(Metadata **p) { |
| return p >= &_metadata_got[0] && p < &_metadata_got[_metadata_size]; |
| } |
| |
| Metadata** metadata_begin() const { return &_metadata_got[0] ; } |
| Metadata** metadata_end() const { return &_metadata_got[_metadata_size] ; } |
| const char* compile_kind() const { return "AOT"; } |
| |
| int get_state() const { |
| return (int) (*_state_adr); |
| } |
| |
| // inlined and non-virtual for AOTCodeHeap::oops_do |
| void do_oops(OopClosure* f) { |
| assert(_is_alive(), ""); |
| if (_oop != NULL) { |
| f->do_oop(&_oop); |
| } |
| #if 0 |
| metadata_oops_do(metadata_begin(), metadata_end(), f); |
| #endif |
| } |
| |
| |
| protected: |
| // AOT compiled methods are not flushed |
| void flush() {}; |
| |
| NativeCallWrapper* call_wrapper_at(address call) const; |
| NativeCallWrapper* call_wrapper_before(address return_pc) const; |
| address call_instruction_address(address pc) const; |
| |
| CompiledStaticCall* compiledStaticCall_at(Relocation* call_site) const; |
| CompiledStaticCall* compiledStaticCall_at(address addr) const; |
| CompiledStaticCall* compiledStaticCall_before(address addr) const; |
| private: |
| bool is_aot_runtime_stub() const { return _method == NULL; } |
| |
| protected: |
| virtual bool do_unloading_oops(address low_boundary, BoolObjectClosure* is_alive, bool unloading_occurred); |
| virtual bool do_unloading_jvmci(BoolObjectClosure* is_alive, bool unloading_occurred) { return false; } |
| |
| }; |
| |
| class PltNativeCallWrapper: public NativeCallWrapper { |
| private: |
| NativePltCall* _call; |
| |
| public: |
| PltNativeCallWrapper(NativePltCall* call) : _call(call) {} |
| |
| virtual address destination() const { return _call->destination(); } |
| virtual address instruction_address() const { return _call->instruction_address(); } |
| virtual address next_instruction_address() const { return _call->next_instruction_address(); } |
| virtual address return_address() const { return _call->return_address(); } |
| virtual address get_resolve_call_stub(bool is_optimized) const { return _call->plt_resolve_call(); } |
| virtual void set_destination_mt_safe(address dest) { _call->set_destination_mt_safe(dest); } |
| virtual void set_to_interpreted(const methodHandle& method, CompiledICInfo& info); |
| virtual void verify() const { _call->verify(); } |
| virtual void verify_resolve_call(address dest) const; |
| |
| virtual bool is_call_to_interpreted(address dest) const { return (dest == _call->plt_c2i_stub()); } |
| // TODO: assume for now that patching of aot code (got cell) is safe. |
| virtual bool is_safe_for_patching() const { return true; } |
| |
| virtual NativeInstruction* get_load_instruction(virtual_call_Relocation* r) const; |
| |
| virtual void *get_data(NativeInstruction* instruction) const { |
| return (void*)((NativeLoadGot*) instruction)->data(); |
| } |
| |
| virtual void set_data(NativeInstruction* instruction, intptr_t data) { |
| ((NativeLoadGot*) instruction)->set_data(data); |
| } |
| }; |
| |
| #endif //SHARE_VM_AOT_AOTCOMPILEDMETHOD_HPP |