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460 lines
22 KiB
C++
460 lines
22 KiB
C++
/*
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* Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_RUNTIME_STUBROUTINES_HPP
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#define SHARE_RUNTIME_STUBROUTINES_HPP
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#include "code/codeBlob.hpp"
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#include "memory/allocation.hpp"
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#include "prims/vectorSupport.hpp"
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#include "runtime/frame.hpp"
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#include "runtime/mutexLocker.hpp"
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#include "runtime/stubCodeGenerator.hpp"
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#include "utilities/macros.hpp"
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// StubRoutines provides entry points to assembly routines used by
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// compiled code and the run-time system. Platform-specific entry
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// points are defined in the platform-specific inner class.
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//
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// Class scheme:
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//
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// platform-independent platform-dependent
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//
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// stubRoutines.hpp <-- included -- stubRoutines_<arch>.hpp
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// ^ ^
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// | |
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// implements implements
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// | |
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// | |
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// stubRoutines.cpp stubRoutines_<arch>.cpp
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// stubRoutines_<os_family>.cpp stubGenerator_<arch>.cpp
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// stubRoutines_<os_arch>.cpp
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//
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// Note 1: The important thing is a clean decoupling between stub
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// entry points (interfacing to the whole vm; i.e., 1-to-n
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// relationship) and stub generators (interfacing only to
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// the entry points implementation; i.e., 1-to-1 relationship).
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// This significantly simplifies changes in the generator
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// structure since the rest of the vm is not affected.
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//
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// Note 2: stubGenerator_<arch>.cpp contains a minimal portion of
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// machine-independent code; namely the generator calls of
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// the generator functions that are used platform-independently.
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// However, it comes with the advantage of having a 1-file
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// implementation of the generator. It should be fairly easy
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// to change, should it become a problem later.
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//
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// Scheme for adding a new entry point:
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//
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// 1. determine if it's a platform-dependent or independent entry point
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// a) if platform independent: make subsequent changes in the independent files
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// b) if platform dependent: make subsequent changes in the dependent files
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// 2. add a private instance variable holding the entry point address
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// 3. add a public accessor function to the instance variable
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// 4. implement the corresponding generator function in the platform-dependent
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// stubGenerator_<arch>.cpp file and call the function in generate_all() of that file
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class UnsafeCopyMemory : public CHeapObj<mtCode> {
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private:
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address _start_pc;
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address _end_pc;
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address _error_exit_pc;
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public:
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static address _common_exit_stub_pc;
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static UnsafeCopyMemory* _table;
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static int _table_length;
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static int _table_max_length;
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UnsafeCopyMemory() : _start_pc(NULL), _end_pc(NULL), _error_exit_pc(NULL) {}
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void set_start_pc(address pc) { _start_pc = pc; }
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void set_end_pc(address pc) { _end_pc = pc; }
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void set_error_exit_pc(address pc) { _error_exit_pc = pc; }
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address start_pc() const { return _start_pc; }
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address end_pc() const { return _end_pc; }
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address error_exit_pc() const { return _error_exit_pc; }
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static void set_common_exit_stub_pc(address pc) { _common_exit_stub_pc = pc; }
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static address common_exit_stub_pc() { return _common_exit_stub_pc; }
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static UnsafeCopyMemory* add_to_table(address start_pc, address end_pc, address error_exit_pc) {
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guarantee(_table_length < _table_max_length, "Incorrect UnsafeCopyMemory::_table_max_length");
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UnsafeCopyMemory* entry = &_table[_table_length];
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entry->set_start_pc(start_pc);
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entry->set_end_pc(end_pc);
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entry->set_error_exit_pc(error_exit_pc);
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_table_length++;
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return entry;
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}
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static bool contains_pc(address pc);
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static address page_error_continue_pc(address pc);
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static void create_table(int max_size);
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};
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class UnsafeCopyMemoryMark : public StackObj {
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private:
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UnsafeCopyMemory* _ucm_entry;
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StubCodeGenerator* _cgen;
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public:
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UnsafeCopyMemoryMark(StubCodeGenerator* cgen, bool add_entry, bool continue_at_scope_end, address error_exit_pc = NULL);
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~UnsafeCopyMemoryMark();
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};
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class StubRoutines: AllStatic {
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public:
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// Dependencies
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friend class StubGenerator;
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#include CPU_HEADER(stubRoutines)
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static jint _verify_oop_count;
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static address _verify_oop_subroutine_entry;
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static address _call_stub_return_address; // the return PC, when returning to a call stub
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static address _call_stub_entry;
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static address _forward_exception_entry;
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static address _catch_exception_entry;
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static address _throw_AbstractMethodError_entry;
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static address _throw_IncompatibleClassChangeError_entry;
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static address _throw_NullPointerException_at_call_entry;
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static address _throw_StackOverflowError_entry;
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static address _throw_delayed_StackOverflowError_entry;
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static address _atomic_xchg_entry;
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static address _atomic_xchg_long_entry;
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static address _atomic_store_entry;
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static address _atomic_cmpxchg_entry;
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static address _atomic_cmpxchg_byte_entry;
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static address _atomic_cmpxchg_long_entry;
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static address _atomic_add_entry;
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static address _atomic_add_long_entry;
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static address _fence_entry;
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static BufferBlob* _code1; // code buffer for initial routines
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static BufferBlob* _code2;
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static BufferBlob* _code3; // code buffer for all other routines
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// Leaf routines which implement arraycopy and their addresses
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// arraycopy operands aligned on element type boundary
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static address _jbyte_arraycopy;
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static address _jshort_arraycopy;
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static address _jint_arraycopy;
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static address _jlong_arraycopy;
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static address _oop_arraycopy, _oop_arraycopy_uninit;
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static address _jbyte_disjoint_arraycopy;
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static address _jshort_disjoint_arraycopy;
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static address _jint_disjoint_arraycopy;
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static address _jlong_disjoint_arraycopy;
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static address _oop_disjoint_arraycopy, _oop_disjoint_arraycopy_uninit;
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// arraycopy operands aligned on zero'th element boundary
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// These are identical to the ones aligned aligned on an
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// element type boundary, except that they assume that both
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// source and destination are HeapWord aligned.
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static address _arrayof_jbyte_arraycopy;
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static address _arrayof_jshort_arraycopy;
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static address _arrayof_jint_arraycopy;
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static address _arrayof_jlong_arraycopy;
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static address _arrayof_oop_arraycopy, _arrayof_oop_arraycopy_uninit;
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static address _arrayof_jbyte_disjoint_arraycopy;
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static address _arrayof_jshort_disjoint_arraycopy;
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static address _arrayof_jint_disjoint_arraycopy;
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static address _arrayof_jlong_disjoint_arraycopy;
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static address _arrayof_oop_disjoint_arraycopy, _arrayof_oop_disjoint_arraycopy_uninit;
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// cache line writeback
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static address _data_cache_writeback;
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static address _data_cache_writeback_sync;
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// these are recommended but optional:
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static address _checkcast_arraycopy, _checkcast_arraycopy_uninit;
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static address _unsafe_arraycopy;
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static address _generic_arraycopy;
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static address _jbyte_fill;
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static address _jshort_fill;
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static address _jint_fill;
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static address _arrayof_jbyte_fill;
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static address _arrayof_jshort_fill;
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static address _arrayof_jint_fill;
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static address _aescrypt_encryptBlock;
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static address _aescrypt_decryptBlock;
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static address _cipherBlockChaining_encryptAESCrypt;
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static address _cipherBlockChaining_decryptAESCrypt;
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static address _electronicCodeBook_encryptAESCrypt;
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static address _electronicCodeBook_decryptAESCrypt;
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static address _counterMode_AESCrypt;
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static address _galoisCounterMode_AESCrypt;
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static address _ghash_processBlocks;
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static address _base64_encodeBlock;
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static address _base64_decodeBlock;
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static address _poly1305_processBlocks;
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static address _md5_implCompress;
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static address _md5_implCompressMB;
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static address _sha1_implCompress;
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static address _sha1_implCompressMB;
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static address _sha256_implCompress;
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static address _sha256_implCompressMB;
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static address _sha512_implCompress;
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static address _sha512_implCompressMB;
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static address _sha3_implCompress;
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static address _sha3_implCompressMB;
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static address _updateBytesCRC32;
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static address _crc_table_adr;
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static address _crc32c_table_addr;
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static address _updateBytesCRC32C;
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static address _updateBytesAdler32;
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static address _multiplyToLen;
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static address _squareToLen;
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static address _mulAdd;
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static address _montgomeryMultiply;
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static address _montgomerySquare;
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static address _bigIntegerRightShiftWorker;
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static address _bigIntegerLeftShiftWorker;
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static address _vectorizedMismatch;
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static address _dexp;
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static address _dlog;
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static address _dlog10;
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static address _dpow;
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static address _dsin;
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static address _dcos;
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static address _dlibm_sin_cos_huge;
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static address _dlibm_reduce_pi04l;
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static address _dlibm_tan_cot_huge;
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static address _dtan;
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static address _cont_thaw;
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static address _cont_returnBarrier;
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static address _cont_returnBarrierExc;
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JFR_ONLY(static RuntimeStub* _jfr_write_checkpoint_stub;)
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JFR_ONLY(static address _jfr_write_checkpoint;)
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// Vector Math Routines
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static address _vector_f_math[VectorSupport::NUM_VEC_SIZES][VectorSupport::NUM_SVML_OP];
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static address _vector_d_math[VectorSupport::NUM_VEC_SIZES][VectorSupport::NUM_SVML_OP];
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public:
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// Initialization/Testing
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static void initialize1(); // must happen before universe::genesis
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static void initialize2(); // must happen after universe::genesis
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static void initializeContinuationStubs(); // must happen after universe::genesis
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static bool is_stub_code(address addr) { return contains(addr); }
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static bool contains(address addr) {
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return
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(_code1 != NULL && _code1->blob_contains(addr)) ||
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(_code2 != NULL && _code2->blob_contains(addr)) ;
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}
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static RuntimeBlob* code1() { return _code1; }
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static RuntimeBlob* code2() { return _code2; }
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static RuntimeBlob* code3() { return _code3; }
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// Debugging
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static jint verify_oop_count() { return _verify_oop_count; }
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static jint* verify_oop_count_addr() { return &_verify_oop_count; }
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// a subroutine for debugging the GC
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static address verify_oop_subroutine_entry_address() { return (address)&_verify_oop_subroutine_entry; }
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static address catch_exception_entry() { return _catch_exception_entry; }
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// Calls to Java
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typedef void (*CallStub)(
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address link,
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intptr_t* result,
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BasicType result_type,
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Method* method,
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address entry_point,
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intptr_t* parameters,
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int size_of_parameters,
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TRAPS
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);
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static CallStub call_stub() { return CAST_TO_FN_PTR(CallStub, _call_stub_entry); }
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// Exceptions
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static address forward_exception_entry() { return _forward_exception_entry; }
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// Implicit exceptions
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static address throw_AbstractMethodError_entry() { return _throw_AbstractMethodError_entry; }
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static address throw_IncompatibleClassChangeError_entry(){ return _throw_IncompatibleClassChangeError_entry; }
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static address throw_NullPointerException_at_call_entry(){ return _throw_NullPointerException_at_call_entry; }
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static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; }
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static address throw_delayed_StackOverflowError_entry() { return _throw_delayed_StackOverflowError_entry; }
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static address atomic_xchg_entry() { return _atomic_xchg_entry; }
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static address atomic_xchg_long_entry() { return _atomic_xchg_long_entry; }
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static address atomic_store_entry() { return _atomic_store_entry; }
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static address atomic_cmpxchg_entry() { return _atomic_cmpxchg_entry; }
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static address atomic_cmpxchg_byte_entry() { return _atomic_cmpxchg_byte_entry; }
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static address atomic_cmpxchg_long_entry() { return _atomic_cmpxchg_long_entry; }
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static address atomic_add_entry() { return _atomic_add_entry; }
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static address atomic_add_long_entry() { return _atomic_add_long_entry; }
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static address fence_entry() { return _fence_entry; }
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static address select_arraycopy_function(BasicType t, bool aligned, bool disjoint, const char* &name, bool dest_uninitialized);
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static address jbyte_arraycopy() { return _jbyte_arraycopy; }
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static address jshort_arraycopy() { return _jshort_arraycopy; }
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static address jint_arraycopy() { return _jint_arraycopy; }
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static address jlong_arraycopy() { return _jlong_arraycopy; }
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static address oop_arraycopy(bool dest_uninitialized = false) {
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return dest_uninitialized ? _oop_arraycopy_uninit : _oop_arraycopy;
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}
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static address jbyte_disjoint_arraycopy() { return _jbyte_disjoint_arraycopy; }
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static address jshort_disjoint_arraycopy() { return _jshort_disjoint_arraycopy; }
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static address jint_disjoint_arraycopy() { return _jint_disjoint_arraycopy; }
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static address jlong_disjoint_arraycopy() { return _jlong_disjoint_arraycopy; }
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static address oop_disjoint_arraycopy(bool dest_uninitialized = false) {
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return dest_uninitialized ? _oop_disjoint_arraycopy_uninit : _oop_disjoint_arraycopy;
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}
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static address arrayof_jbyte_arraycopy() { return _arrayof_jbyte_arraycopy; }
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static address arrayof_jshort_arraycopy() { return _arrayof_jshort_arraycopy; }
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static address arrayof_jint_arraycopy() { return _arrayof_jint_arraycopy; }
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static address arrayof_jlong_arraycopy() { return _arrayof_jlong_arraycopy; }
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static address arrayof_oop_arraycopy(bool dest_uninitialized = false) {
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return dest_uninitialized ? _arrayof_oop_arraycopy_uninit : _arrayof_oop_arraycopy;
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}
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static address arrayof_jbyte_disjoint_arraycopy() { return _arrayof_jbyte_disjoint_arraycopy; }
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static address arrayof_jshort_disjoint_arraycopy() { return _arrayof_jshort_disjoint_arraycopy; }
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static address arrayof_jint_disjoint_arraycopy() { return _arrayof_jint_disjoint_arraycopy; }
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static address arrayof_jlong_disjoint_arraycopy() { return _arrayof_jlong_disjoint_arraycopy; }
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static address arrayof_oop_disjoint_arraycopy(bool dest_uninitialized = false) {
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return dest_uninitialized ? _arrayof_oop_disjoint_arraycopy_uninit : _arrayof_oop_disjoint_arraycopy;
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}
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static address data_cache_writeback() { return _data_cache_writeback; }
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static address data_cache_writeback_sync() { return _data_cache_writeback_sync; }
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typedef void (*DataCacheWritebackStub)(void *);
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static DataCacheWritebackStub DataCacheWriteback_stub() { return CAST_TO_FN_PTR(DataCacheWritebackStub, _data_cache_writeback); }
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typedef void (*DataCacheWritebackSyncStub)(bool);
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static DataCacheWritebackSyncStub DataCacheWritebackSync_stub() { return CAST_TO_FN_PTR(DataCacheWritebackSyncStub, _data_cache_writeback_sync); }
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static address checkcast_arraycopy(bool dest_uninitialized = false) {
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return dest_uninitialized ? _checkcast_arraycopy_uninit : _checkcast_arraycopy;
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}
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static address unsafe_arraycopy() { return _unsafe_arraycopy; }
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typedef void (*UnsafeArrayCopyStub)(const void* src, void* dst, size_t count);
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static UnsafeArrayCopyStub UnsafeArrayCopy_stub() { return CAST_TO_FN_PTR(UnsafeArrayCopyStub, _unsafe_arraycopy); }
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static address generic_arraycopy() { return _generic_arraycopy; }
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static address jbyte_fill() { return _jbyte_fill; }
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static address jshort_fill() { return _jshort_fill; }
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static address jint_fill() { return _jint_fill; }
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static address arrayof_jbyte_fill() { return _arrayof_jbyte_fill; }
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static address arrayof_jshort_fill() { return _arrayof_jshort_fill; }
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static address arrayof_jint_fill() { return _arrayof_jint_fill; }
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static address aescrypt_encryptBlock() { return _aescrypt_encryptBlock; }
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static address aescrypt_decryptBlock() { return _aescrypt_decryptBlock; }
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static address cipherBlockChaining_encryptAESCrypt() { return _cipherBlockChaining_encryptAESCrypt; }
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static address cipherBlockChaining_decryptAESCrypt() { return _cipherBlockChaining_decryptAESCrypt; }
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static address electronicCodeBook_encryptAESCrypt() { return _electronicCodeBook_encryptAESCrypt; }
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static address electronicCodeBook_decryptAESCrypt() { return _electronicCodeBook_decryptAESCrypt; }
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static address poly1305_processBlocks() { return _poly1305_processBlocks; }
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static address counterMode_AESCrypt() { return _counterMode_AESCrypt; }
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static address ghash_processBlocks() { return _ghash_processBlocks; }
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static address base64_encodeBlock() { return _base64_encodeBlock; }
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static address base64_decodeBlock() { return _base64_decodeBlock; }
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static address md5_implCompress() { return _md5_implCompress; }
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static address md5_implCompressMB() { return _md5_implCompressMB; }
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static address sha1_implCompress() { return _sha1_implCompress; }
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static address sha1_implCompressMB() { return _sha1_implCompressMB; }
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static address sha256_implCompress() { return _sha256_implCompress; }
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static address sha256_implCompressMB() { return _sha256_implCompressMB; }
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static address sha512_implCompress() { return _sha512_implCompress; }
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static address sha512_implCompressMB() { return _sha512_implCompressMB; }
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static address sha3_implCompress() { return _sha3_implCompress; }
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static address sha3_implCompressMB() { return _sha3_implCompressMB; }
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static address updateBytesCRC32() { return _updateBytesCRC32; }
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static address crc_table_addr() { return _crc_table_adr; }
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static address crc32c_table_addr() { return _crc32c_table_addr; }
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static address updateBytesCRC32C() { return _updateBytesCRC32C; }
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static address updateBytesAdler32() { return _updateBytesAdler32; }
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static address multiplyToLen() { return _multiplyToLen; }
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static address squareToLen() { return _squareToLen; }
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static address mulAdd() { return _mulAdd; }
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static address montgomeryMultiply() { return _montgomeryMultiply; }
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static address montgomerySquare() { return _montgomerySquare; }
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static address bigIntegerRightShift() { return _bigIntegerRightShiftWorker; }
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static address bigIntegerLeftShift() { return _bigIntegerLeftShiftWorker; }
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static address galoisCounterMode_AESCrypt() { return _galoisCounterMode_AESCrypt; }
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static address vectorizedMismatch() { return _vectorizedMismatch; }
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static address dexp() { return _dexp; }
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static address dlog() { return _dlog; }
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static address dlog10() { return _dlog10; }
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static address dpow() { return _dpow; }
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static address dsin() { return _dsin; }
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static address dcos() { return _dcos; }
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static address dlibm_reduce_pi04l() { return _dlibm_reduce_pi04l; }
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static address dlibm_sin_cos_huge() { return _dlibm_sin_cos_huge; }
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static address dlibm_tan_cot_huge() { return _dlibm_tan_cot_huge; }
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static address dtan() { return _dtan; }
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static address cont_thaw() { return _cont_thaw; }
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static address cont_returnBarrier() { return _cont_returnBarrier; }
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static address cont_returnBarrierExc(){return _cont_returnBarrierExc; }
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JFR_ONLY(static address jfr_write_checkpoint() { return _jfr_write_checkpoint; })
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static address select_fill_function(BasicType t, bool aligned, const char* &name);
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//
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// Default versions of the above arraycopy functions for platforms which do
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// not have specialized versions
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//
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static void jbyte_copy (jbyte* src, jbyte* dest, size_t count);
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static void jshort_copy (jshort* src, jshort* dest, size_t count);
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static void jint_copy (jint* src, jint* dest, size_t count);
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static void jlong_copy (jlong* src, jlong* dest, size_t count);
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static void oop_copy (oop* src, oop* dest, size_t count);
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static void oop_copy_uninit(oop* src, oop* dest, size_t count);
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static void arrayof_jbyte_copy (HeapWord* src, HeapWord* dest, size_t count);
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static void arrayof_jshort_copy (HeapWord* src, HeapWord* dest, size_t count);
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static void arrayof_jint_copy (HeapWord* src, HeapWord* dest, size_t count);
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static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count);
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static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count);
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static void arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count);
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};
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#endif // SHARE_RUNTIME_STUBROUTINES_HPP
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