8139203: Consistent naming for klass type predicates
8138923: Remove oop coupling with InstanceKlass subclasses
Summary: Renamed oop_is_instance and friends, removed the functions in oop that dug down into InstanceKlass.
Reviewed-by: jrose, lfoltan, stefank
/*
* Copyright (c) 1997, 2015, 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_RUNTIME_STUBROUTINES_HPP
#define SHARE_VM_RUNTIME_STUBROUTINES_HPP
#include "code/codeBlob.hpp"
#include "memory/allocation.hpp"
#include "runtime/frame.hpp"
#include "runtime/mutexLocker.hpp"
#include "runtime/stubCodeGenerator.hpp"
#include "utilities/top.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 StubRoutines: AllStatic {
public:
enum platform_independent_constants {
max_size_of_parameters = 256 // max. parameter size supported by megamorphic lookups
};
// Dependencies
friend class StubGenerator;
#if defined STUBROUTINES_MD_HPP
# include STUBROUTINES_MD_HPP
#elif defined TARGET_ARCH_MODEL_x86_32
# include "stubRoutines_x86_32.hpp"
#elif defined TARGET_ARCH_MODEL_x86_64
# include "stubRoutines_x86_64.hpp"
#elif defined TARGET_ARCH_MODEL_sparc
# include "stubRoutines_sparc.hpp"
#elif defined TARGET_ARCH_MODEL_zero
# include "stubRoutines_zero.hpp"
#elif defined TARGET_ARCH_MODEL_ppc_64
# include "stubRoutines_ppc_64.hpp"
#elif defined TARGET_ARCH_MODEL_aarch64
# include "stubRoutines_aarch64.hpp"
#endif
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 _handler_for_unsafe_access_entry;
static address _atomic_xchg_entry;
static address _atomic_xchg_ptr_entry;
static address _atomic_store_entry;
static address _atomic_store_ptr_entry;
static address _atomic_cmpxchg_entry;
static address _atomic_cmpxchg_ptr_entry;
static address _atomic_cmpxchg_byte_entry;
static address _atomic_cmpxchg_long_entry;
static address _atomic_add_entry;
static address _atomic_add_ptr_entry;
static address _fence_entry;
static address _d2i_wrapper;
static address _d2l_wrapper;
static jint _fpu_cntrl_wrd_std;
static jint _fpu_cntrl_wrd_24;
static jint _fpu_cntrl_wrd_64;
static jint _fpu_cntrl_wrd_trunc;
static jint _mxcsr_std;
static jint _fpu_subnormal_bias1[3];
static jint _fpu_subnormal_bias2[3];
static BufferBlob* _code1; // code buffer for initial routines
static BufferBlob* _code2; // 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;
// 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;
// zero heap space aligned to jlong (8 bytes)
static address _zero_aligned_words;
static address _aescrypt_encryptBlock;
static address _aescrypt_decryptBlock;
static address _cipherBlockChaining_encryptAESCrypt;
static address _cipherBlockChaining_decryptAESCrypt;
static address _ghash_processBlocks;
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 _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 _dexp;
// These are versions of the java.lang.Math methods which perform
// the same operations as the intrinsic version. They are used for
// constant folding in the compiler to ensure equivalence. If the
// intrinsic version returns the same result as the strict version
// then they can be set to the appropriate function from
// SharedRuntime.
static double (*_intrinsic_log)(double);
static double (*_intrinsic_log10)(double);
static double (*_intrinsic_pow)(double, double);
static double (*_intrinsic_sin)(double);
static double (*_intrinsic_cos)(double);
static double (*_intrinsic_tan)(double);
// Safefetch stubs.
static address _safefetch32_entry;
static address _safefetch32_fault_pc;
static address _safefetch32_continuation_pc;
static address _safefetchN_entry;
static address _safefetchN_fault_pc;
static address _safefetchN_continuation_pc;
public:
// Initialization/Testing
static void initialize1(); // must happen before universe::genesis
static void initialize2(); // 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 CodeBlob* code1() { return _code1; }
static CodeBlob* code2() { return _code2; }
// 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; }
// Exceptions during unsafe access - should throw Java exception rather
// than crash.
static address handler_for_unsafe_access() { return _handler_for_unsafe_access_entry; }
static address atomic_xchg_entry() { return _atomic_xchg_entry; }
static address atomic_xchg_ptr_entry() { return _atomic_xchg_ptr_entry; }
static address atomic_store_entry() { return _atomic_store_entry; }
static address atomic_store_ptr_entry() { return _atomic_store_ptr_entry; }
static address atomic_cmpxchg_entry() { return _atomic_cmpxchg_entry; }
static address atomic_cmpxchg_ptr_entry() { return _atomic_cmpxchg_ptr_entry; }
static address atomic_cmpxchg_byte_entry() { return _atomic_cmpxchg_byte_entry; }
static address atomic_cmpxchg_long_entry() { return _atomic_cmpxchg_long_entry; }
static address atomic_add_entry() { return _atomic_add_entry; }
static address atomic_add_ptr_entry() { return _atomic_add_ptr_entry; }
static address fence_entry() { return _fence_entry; }
static address d2i_wrapper() { return _d2i_wrapper; }
static address d2l_wrapper() { return _d2l_wrapper; }
static jint fpu_cntrl_wrd_std() { return _fpu_cntrl_wrd_std; }
static address addr_fpu_cntrl_wrd_std() { return (address)&_fpu_cntrl_wrd_std; }
static address addr_fpu_cntrl_wrd_24() { return (address)&_fpu_cntrl_wrd_24; }
static address addr_fpu_cntrl_wrd_64() { return (address)&_fpu_cntrl_wrd_64; }
static address addr_fpu_cntrl_wrd_trunc() { return (address)&_fpu_cntrl_wrd_trunc; }
static address addr_mxcsr_std() { return (address)&_mxcsr_std; }
static address addr_fpu_subnormal_bias1() { return (address)&_fpu_subnormal_bias1; }
static address addr_fpu_subnormal_bias2() { return (address)&_fpu_subnormal_bias2; }
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 checkcast_arraycopy(bool dest_uninitialized = false) {
return dest_uninitialized ? _checkcast_arraycopy_uninit : _checkcast_arraycopy;
}
static address unsafe_arraycopy() { return _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 ghash_processBlocks() { return _ghash_processBlocks; }
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 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 dexp() {return _dexp; }
static address select_fill_function(BasicType t, bool aligned, const char* &name);
static address zero_aligned_words() { return _zero_aligned_words; }
static double intrinsic_log(double d) {
assert(_intrinsic_log != NULL, "must be defined");
return _intrinsic_log(d);
}
static double intrinsic_log10(double d) {
assert(_intrinsic_log != NULL, "must be defined");
return _intrinsic_log10(d);
}
static double intrinsic_pow(double d, double d2) {
assert(_intrinsic_pow != NULL, "must be defined");
return _intrinsic_pow(d, d2);
}
static double intrinsic_sin(double d) {
assert(_intrinsic_sin != NULL, "must be defined");
return _intrinsic_sin(d);
}
static double intrinsic_cos(double d) {
assert(_intrinsic_cos != NULL, "must be defined");
return _intrinsic_cos(d);
}
static double intrinsic_tan(double d) {
assert(_intrinsic_tan != NULL, "must be defined");
return _intrinsic_tan(d);
}
//
// Safefetch stub support
//
typedef int (*SafeFetch32Stub)(int* adr, int errValue);
typedef intptr_t (*SafeFetchNStub) (intptr_t* adr, intptr_t errValue);
static SafeFetch32Stub SafeFetch32_stub() { return CAST_TO_FN_PTR(SafeFetch32Stub, _safefetch32_entry); }
static SafeFetchNStub SafeFetchN_stub() { return CAST_TO_FN_PTR(SafeFetchNStub, _safefetchN_entry); }
static bool is_safefetch_fault(address pc) {
return pc != NULL &&
(pc == _safefetch32_fault_pc ||
pc == _safefetchN_fault_pc);
}
static address continuation_for_safefetch_fault(address pc) {
assert(_safefetch32_continuation_pc != NULL &&
_safefetchN_continuation_pc != NULL,
"not initialized");
if (pc == _safefetch32_fault_pc) return _safefetch32_continuation_pc;
if (pc == _safefetchN_fault_pc) return _safefetchN_continuation_pc;
ShouldNotReachHere();
return NULL;
}
//
// 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);
};
// Safefetch allows to load a value from a location that's not known
// to be valid. If the load causes a fault, the error value is returned.
inline int SafeFetch32(int* adr, int errValue) {
assert(StubRoutines::SafeFetch32_stub(), "stub not yet generated");
return StubRoutines::SafeFetch32_stub()(adr, errValue);
}
inline intptr_t SafeFetchN(intptr_t* adr, intptr_t errValue) {
assert(StubRoutines::SafeFetchN_stub(), "stub not yet generated");
return StubRoutines::SafeFetchN_stub()(adr, errValue);
}
// returns true if SafeFetch32 and SafeFetchN can be used safely (stubroutines are already generated)
inline bool CanUseSafeFetch32() {
return StubRoutines::SafeFetch32_stub() ? true : false;
}
inline bool CanUseSafeFetchN() {
return StubRoutines::SafeFetchN_stub() ? true : false;
}
#endif // SHARE_VM_RUNTIME_STUBROUTINES_HPP