|
/*
* Copyright (c) 1997, 2022, 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_RUNTIME_STUBROUTINES_HPP
#define SHARE_RUNTIME_STUBROUTINES_HPP
#include "code/codeBlob.hpp"
#include "memory/allocation.hpp"
#include "prims/vectorSupport.hpp"
#include "runtime/frame.hpp"
#include "runtime/mutexLocker.hpp"
#include "runtime/stubCodeGenerator.hpp"
#include "utilities/macros.hpp"
// StubRoutines provides entry points to assembly routines used by
// compiled code and the run-time system. Platform-specific entry
// points are defined in the platform-specific inner class.
//
// Class scheme:
//
// platform-independent platform-dependent
//
// stubRoutines.hpp <-- included -- stubRoutines_<arch>.hpp
// ^ ^
// | |
// implements implements
// | |
// | |
// stubRoutines.cpp stubRoutines_<arch>.cpp
// stubRoutines_<os_family>.cpp stubGenerator_<arch>.cpp
// stubRoutines_<os_arch>.cpp
//
// Note 1: The important thing is a clean decoupling between stub
// entry points (interfacing to the whole vm; i.e., 1-to-n
// relationship) and stub generators (interfacing only to
// the entry points implementation; i.e., 1-to-1 relationship).
// This significantly simplifies changes in the generator
// structure since the rest of the vm is not affected.
//
// Note 2: stubGenerator_<arch>.cpp contains a minimal portion of
// machine-independent code; namely the generator calls of
// the generator functions that are used platform-independently.
// However, it comes with the advantage of having a 1-file
// implementation of the generator. It should be fairly easy
// to change, should it become a problem later.
//
// Scheme for adding a new entry point:
//
// 1. determine if it's a platform-dependent or independent entry point
// a) if platform independent: make subsequent changes in the independent files
// b) if platform dependent: make subsequent changes in the dependent files
// 2. add a private instance variable holding the entry point address
// 3. add a public accessor function to the instance variable
// 4. implement the corresponding generator function in the platform-dependent
// stubGenerator_<arch>.cpp file and call the function in generate_all() of that file
class UnsafeCopyMemory : public CHeapObj<mtCode> {
private:
address _start_pc;
address _end_pc;
address _error_exit_pc;
public:
static address _common_exit_stub_pc;
static UnsafeCopyMemory* _table;
static int _table_length;
static int _table_max_length;
UnsafeCopyMemory() : _start_pc(NULL), _end_pc(NULL), _error_exit_pc(NULL) {}
void set_start_pc(address pc) { _start_pc = pc; }
void set_end_pc(address pc) { _end_pc = pc; }
void set_error_exit_pc(address pc) { _error_exit_pc = pc; }
address start_pc() const { return _start_pc; }
address end_pc() const { return _end_pc; }
address error_exit_pc() const { return _error_exit_pc; }
static void set_common_exit_stub_pc(address pc) { _common_exit_stub_pc = pc; }
static address common_exit_stub_pc() { return _common_exit_stub_pc; }
static UnsafeCopyMemory* add_to_table(address start_pc, address end_pc, address error_exit_pc) {
guarantee(_table_length < _table_max_length, "Incorrect UnsafeCopyMemory::_table_max_length");
UnsafeCopyMemory* entry = &_table[_table_length];
entry->set_start_pc(start_pc);
entry->set_end_pc(end_pc);
entry->set_error_exit_pc(error_exit_pc);
_table_length++;
return entry;
}
static bool contains_pc(address pc);
static address page_error_continue_pc(address pc);
static void create_table(int max_size);
};
class UnsafeCopyMemoryMark : public StackObj {
private:
UnsafeCopyMemory* _ucm_entry;
StubCodeGenerator* _cgen;
public:
UnsafeCopyMemoryMark(StubCodeGenerator* cgen, bool add_entry, bool continue_at_scope_end, address error_exit_pc = NULL);
~UnsafeCopyMemoryMark();
};
class StubRoutines: AllStatic {
public:
// Dependencies
friend class StubGenerator;
#include CPU_HEADER(stubRoutines)
static jint _verify_oop_count;
static address _verify_oop_subroutine_entry;
static address _call_stub_return_address; // the return PC, when returning to a call stub
static address _call_stub_entry;
static address _forward_exception_entry;
static address _catch_exception_entry;
static address _throw_AbstractMethodError_entry;
static address _throw_IncompatibleClassChangeError_entry;
static address _throw_NullPointerException_at_call_entry;
static address _throw_StackOverflowError_entry;
static address _throw_delayed_StackOverflowError_entry;
static address _atomic_xchg_entry;
static address _atomic_cmpxchg_entry;
static address _atomic_cmpxchg_long_entry;
static address _atomic_add_entry;
static address _fence_entry;
static BufferBlob* _code1; // code buffer for initial routines
static BufferBlob* _code2;
static BufferBlob* _code3; // code buffer for all other routines
// Leaf routines which implement arraycopy and their addresses
// arraycopy operands aligned on element type boundary
static address _jbyte_arraycopy;
static address _jshort_arraycopy;
static address _jint_arraycopy;
static address _jlong_arraycopy;
static address _oop_arraycopy, _oop_arraycopy_uninit;
static address _jbyte_disjoint_arraycopy;
static address _jshort_disjoint_arraycopy;
static address _jint_disjoint_arraycopy;
static address _jlong_disjoint_arraycopy;
static address _oop_disjoint_arraycopy, _oop_disjoint_arraycopy_uninit;
// arraycopy operands aligned on zero'th element boundary
// These are identical to the ones aligned aligned on an
// element type boundary, except that they assume that both
// source and destination are HeapWord aligned.
static address _arrayof_jbyte_arraycopy;
static address _arrayof_jshort_arraycopy;
static address _arrayof_jint_arraycopy;
static address _arrayof_jlong_arraycopy;
static address _arrayof_oop_arraycopy, _arrayof_oop_arraycopy_uninit;
static address _arrayof_jbyte_disjoint_arraycopy;
static address _arrayof_jshort_disjoint_arraycopy;
static address _arrayof_jint_disjoint_arraycopy;
static address _arrayof_jlong_disjoint_arraycopy;
static address _arrayof_oop_disjoint_arraycopy, _arrayof_oop_disjoint_arraycopy_uninit;
// cache line writeback
static address _data_cache_writeback;
static address _data_cache_writeback_sync;
// these are recommended but optional:
static address _checkcast_arraycopy, _checkcast_arraycopy_uninit;
static address _unsafe_arraycopy;
static address _generic_arraycopy;
static address _jbyte_fill;
static address _jshort_fill;
static address _jint_fill;
static address _arrayof_jbyte_fill;
static address _arrayof_jshort_fill;
static address _arrayof_jint_fill;
static address _aescrypt_encryptBlock;
static address _aescrypt_decryptBlock;
static address _cipherBlockChaining_encryptAESCrypt;
static address _cipherBlockChaining_decryptAESCrypt;
static address _electronicCodeBook_encryptAESCrypt;
static address _electronicCodeBook_decryptAESCrypt;
static address _counterMode_AESCrypt;
static address _galoisCounterMode_AESCrypt;
static address _ghash_processBlocks;
static address _chacha20Block;
static address _base64_encodeBlock;
static address _base64_decodeBlock;
static address _poly1305_processBlocks;
static address _md5_implCompress;
static address _md5_implCompressMB;
static address _sha1_implCompress;
static address _sha1_implCompressMB;
static address _sha256_implCompress;
static address _sha256_implCompressMB;
static address _sha512_implCompress;
static address _sha512_implCompressMB;
static address _sha3_implCompress;
static address _sha3_implCompressMB;
static address _updateBytesCRC32;
static address _crc_table_adr;
static address _crc32c_table_addr;
static address _updateBytesCRC32C;
static address _updateBytesAdler32;
static address _multiplyToLen;
static address _squareToLen;
static address _mulAdd;
static address _montgomeryMultiply;
static address _montgomerySquare;
static address _bigIntegerRightShiftWorker;
static address _bigIntegerLeftShiftWorker;
static address _vectorizedMismatch;
static address _dexp;
static address _dlog;
static address _dlog10;
static address _dpow;
static address _dsin;
static address _dcos;
static address _dlibm_sin_cos_huge;
static address _dlibm_reduce_pi04l;
static address _dlibm_tan_cot_huge;
static address _dtan;
static address _cont_thaw;
static address _cont_returnBarrier;
static address _cont_returnBarrierExc;
JFR_ONLY(static RuntimeStub* _jfr_write_checkpoint_stub;)
JFR_ONLY(static address _jfr_write_checkpoint;)
// Vector Math Routines
static address _vector_f_math[VectorSupport::NUM_VEC_SIZES][VectorSupport::NUM_SVML_OP];
static address _vector_d_math[VectorSupport::NUM_VEC_SIZES][VectorSupport::NUM_SVML_OP];
public:
// Initialization/Testing
static void initialize1(); // must happen before universe::genesis
static void initialize2(); // must happen after universe::genesis
static void initializeContinuationStubs(); // must happen after universe::genesis
static bool is_stub_code(address addr) { return contains(addr); }
static bool contains(address addr) {
return
(_code1 != NULL && _code1->blob_contains(addr)) ||
(_code2 != NULL && _code2->blob_contains(addr)) ;
}
static RuntimeBlob* code1() { return _code1; }
static RuntimeBlob* code2() { return _code2; }
static RuntimeBlob* code3() { return _code3; }
// Debugging
static jint verify_oop_count() { return _verify_oop_count; }
static jint* verify_oop_count_addr() { return &_verify_oop_count; }
// a subroutine for debugging the GC
static address verify_oop_subroutine_entry_address() { return (address)&_verify_oop_subroutine_entry; }
static address catch_exception_entry() { return _catch_exception_entry; }
// Calls to Java
typedef void (*CallStub)(
address link,
intptr_t* result,
BasicType result_type,
Method* method,
address entry_point,
intptr_t* parameters,
int size_of_parameters,
TRAPS
);
static CallStub call_stub() { return CAST_TO_FN_PTR(CallStub, _call_stub_entry); }
// Exceptions
static address forward_exception_entry() { return _forward_exception_entry; }
// Implicit exceptions
static address throw_AbstractMethodError_entry() { return _throw_AbstractMethodError_entry; }
static address throw_IncompatibleClassChangeError_entry(){ return _throw_IncompatibleClassChangeError_entry; }
static address throw_NullPointerException_at_call_entry(){ return _throw_NullPointerException_at_call_entry; }
static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; }
static address throw_delayed_StackOverflowError_entry() { return _throw_delayed_StackOverflowError_entry; }
static address atomic_xchg_entry() { return _atomic_xchg_entry; }
static address atomic_cmpxchg_entry() { return _atomic_cmpxchg_entry; }
static address atomic_cmpxchg_long_entry() { return _atomic_cmpxchg_long_entry; }
static address atomic_add_entry() { return _atomic_add_entry; }
static address fence_entry() { return _fence_entry; }
static address select_arraycopy_function(BasicType t, bool aligned, bool disjoint, const char* &name, bool dest_uninitialized);
static address jbyte_arraycopy() { return _jbyte_arraycopy; }
static address jshort_arraycopy() { return _jshort_arraycopy; }
static address jint_arraycopy() { return _jint_arraycopy; }
static address jlong_arraycopy() { return _jlong_arraycopy; }
static address oop_arraycopy(bool dest_uninitialized = false) {
return dest_uninitialized ? _oop_arraycopy_uninit : _oop_arraycopy;
}
static address jbyte_disjoint_arraycopy() { return _jbyte_disjoint_arraycopy; }
static address jshort_disjoint_arraycopy() { return _jshort_disjoint_arraycopy; }
static address jint_disjoint_arraycopy() { return _jint_disjoint_arraycopy; }
static address jlong_disjoint_arraycopy() { return _jlong_disjoint_arraycopy; }
static address oop_disjoint_arraycopy(bool dest_uninitialized = false) {
return dest_uninitialized ? _oop_disjoint_arraycopy_uninit : _oop_disjoint_arraycopy;
}
static address arrayof_jbyte_arraycopy() { return _arrayof_jbyte_arraycopy; }
static address arrayof_jshort_arraycopy() { return _arrayof_jshort_arraycopy; }
static address arrayof_jint_arraycopy() { return _arrayof_jint_arraycopy; }
static address arrayof_jlong_arraycopy() { return _arrayof_jlong_arraycopy; }
static address arrayof_oop_arraycopy(bool dest_uninitialized = false) {
return dest_uninitialized ? _arrayof_oop_arraycopy_uninit : _arrayof_oop_arraycopy;
}
static address arrayof_jbyte_disjoint_arraycopy() { return _arrayof_jbyte_disjoint_arraycopy; }
static address arrayof_jshort_disjoint_arraycopy() { return _arrayof_jshort_disjoint_arraycopy; }
static address arrayof_jint_disjoint_arraycopy() { return _arrayof_jint_disjoint_arraycopy; }
static address arrayof_jlong_disjoint_arraycopy() { return _arrayof_jlong_disjoint_arraycopy; }
static address arrayof_oop_disjoint_arraycopy(bool dest_uninitialized = false) {
return dest_uninitialized ? _arrayof_oop_disjoint_arraycopy_uninit : _arrayof_oop_disjoint_arraycopy;
}
static address data_cache_writeback() { return _data_cache_writeback; }
static address data_cache_writeback_sync() { return _data_cache_writeback_sync; }
typedef void (*DataCacheWritebackStub)(void *);
static DataCacheWritebackStub DataCacheWriteback_stub() { return CAST_TO_FN_PTR(DataCacheWritebackStub, _data_cache_writeback); }
typedef void (*DataCacheWritebackSyncStub)(bool);
static DataCacheWritebackSyncStub DataCacheWritebackSync_stub() { return CAST_TO_FN_PTR(DataCacheWritebackSyncStub, _data_cache_writeback_sync); }
static address checkcast_arraycopy(bool dest_uninitialized = false) {
return dest_uninitialized ? _checkcast_arraycopy_uninit : _checkcast_arraycopy;
}
static address unsafe_arraycopy() { return _unsafe_arraycopy; }
typedef void (*UnsafeArrayCopyStub)(const void* src, void* dst, size_t count);
static UnsafeArrayCopyStub UnsafeArrayCopy_stub() { return CAST_TO_FN_PTR(UnsafeArrayCopyStub, _unsafe_arraycopy); }
static address generic_arraycopy() { return _generic_arraycopy; }
static address jbyte_fill() { return _jbyte_fill; }
static address jshort_fill() { return _jshort_fill; }
static address jint_fill() { return _jint_fill; }
static address arrayof_jbyte_fill() { return _arrayof_jbyte_fill; }
static address arrayof_jshort_fill() { return _arrayof_jshort_fill; }
static address arrayof_jint_fill() { return _arrayof_jint_fill; }
static address aescrypt_encryptBlock() { return _aescrypt_encryptBlock; }
static address aescrypt_decryptBlock() { return _aescrypt_decryptBlock; }
static address cipherBlockChaining_encryptAESCrypt() { return _cipherBlockChaining_encryptAESCrypt; }
static address cipherBlockChaining_decryptAESCrypt() { return _cipherBlockChaining_decryptAESCrypt; }
static address electronicCodeBook_encryptAESCrypt() { return _electronicCodeBook_encryptAESCrypt; }
static address electronicCodeBook_decryptAESCrypt() { return _electronicCodeBook_decryptAESCrypt; }
static address poly1305_processBlocks() { return _poly1305_processBlocks; }
static address counterMode_AESCrypt() { return _counterMode_AESCrypt; }
static address ghash_processBlocks() { return _ghash_processBlocks; }
static address chacha20Block() { return _chacha20Block; }
static address base64_encodeBlock() { return _base64_encodeBlock; }
static address base64_decodeBlock() { return _base64_decodeBlock; }
static address md5_implCompress() { return _md5_implCompress; }
static address md5_implCompressMB() { return _md5_implCompressMB; }
static address sha1_implCompress() { return _sha1_implCompress; }
static address sha1_implCompressMB() { return _sha1_implCompressMB; }
static address sha256_implCompress() { return _sha256_implCompress; }
static address sha256_implCompressMB() { return _sha256_implCompressMB; }
static address sha512_implCompress() { return _sha512_implCompress; }
static address sha512_implCompressMB() { return _sha512_implCompressMB; }
static address sha3_implCompress() { return _sha3_implCompress; }
static address sha3_implCompressMB() { return _sha3_implCompressMB; }
static address updateBytesCRC32() { return _updateBytesCRC32; }
static address crc_table_addr() { return _crc_table_adr; }
static address crc32c_table_addr() { return _crc32c_table_addr; }
static address updateBytesCRC32C() { return _updateBytesCRC32C; }
static address updateBytesAdler32() { return _updateBytesAdler32; }
static address multiplyToLen() { return _multiplyToLen; }
static address squareToLen() { return _squareToLen; }
static address mulAdd() { return _mulAdd; }
static address montgomeryMultiply() { return _montgomeryMultiply; }
static address montgomerySquare() { return _montgomerySquare; }
static address bigIntegerRightShift() { return _bigIntegerRightShiftWorker; }
static address bigIntegerLeftShift() { return _bigIntegerLeftShiftWorker; }
static address galoisCounterMode_AESCrypt() { return _galoisCounterMode_AESCrypt; }
static address vectorizedMismatch() { return _vectorizedMismatch; }
static address dexp() { return _dexp; }
static address dlog() { return _dlog; }
static address dlog10() { return _dlog10; }
static address dpow() { return _dpow; }
static address dsin() { return _dsin; }
static address dcos() { return _dcos; }
static address dlibm_reduce_pi04l() { return _dlibm_reduce_pi04l; }
static address dlibm_sin_cos_huge() { return _dlibm_sin_cos_huge; }
static address dlibm_tan_cot_huge() { return _dlibm_tan_cot_huge; }
static address dtan() { return _dtan; }
static address cont_thaw() { return _cont_thaw; }
static address cont_returnBarrier() { return _cont_returnBarrier; }
static address cont_returnBarrierExc(){return _cont_returnBarrierExc; }
JFR_ONLY(static address jfr_write_checkpoint() { return _jfr_write_checkpoint; })
static address select_fill_function(BasicType t, bool aligned, const char* &name);
//
// Default versions of the above arraycopy functions for platforms which do
// not have specialized versions
//
static void jbyte_copy (jbyte* src, jbyte* dest, size_t count);
static void jshort_copy (jshort* src, jshort* dest, size_t count);
static void jint_copy (jint* src, jint* dest, size_t count);
static void jlong_copy (jlong* src, jlong* dest, size_t count);
static void oop_copy (oop* src, oop* dest, size_t count);
static void oop_copy_uninit(oop* src, oop* dest, size_t count);
static void arrayof_jbyte_copy (HeapWord* src, HeapWord* dest, size_t count);
static void arrayof_jshort_copy (HeapWord* src, HeapWord* dest, size_t count);
static void arrayof_jint_copy (HeapWord* src, HeapWord* dest, size_t count);
static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count);
static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count);
static void arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count);
};
#endif // SHARE_RUNTIME_STUBROUTINES_HPP
¤ Dauer der Verarbeitung: 0.24 Sekunden
(vorverarbeitet)
¤
|
Haftungshinweis
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung ist noch experimentell.
|
