author | goetz |
Fri, 04 Jul 2014 11:46:01 +0200 | |
changeset 25715 | d5a8dbdc5150 |
parent 24953 | 9680119572be |
child 26434 | 09ad55e5f486 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2014, 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_VM_RUNTIME_STUBROUTINES_HPP |
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#define SHARE_VM_RUNTIME_STUBROUTINES_HPP |
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#include "code/codeBlob.hpp" |
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#include "memory/allocation.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/top.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 StubRoutines: AllStatic { |
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public: |
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enum platform_independent_constants { |
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max_size_of_parameters = 256 // max. parameter size supported by megamorphic lookups |
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}; |
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// Dependencies |
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friend class StubGenerator; |
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#ifdef TARGET_ARCH_MODEL_x86_32 |
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# include "stubRoutines_x86_32.hpp" |
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#endif |
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#ifdef TARGET_ARCH_MODEL_x86_64 |
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# include "stubRoutines_x86_64.hpp" |
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#endif |
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#ifdef TARGET_ARCH_MODEL_sparc |
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# include "stubRoutines_sparc.hpp" |
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#endif |
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#ifdef TARGET_ARCH_MODEL_zero |
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# include "stubRoutines_zero.hpp" |
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#endif |
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#ifdef TARGET_ARCH_MODEL_arm |
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# include "stubRoutines_arm.hpp" |
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#endif |
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#ifdef TARGET_ARCH_MODEL_ppc_32 |
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# include "stubRoutines_ppc_32.hpp" |
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#endif |
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#ifdef TARGET_ARCH_MODEL_ppc_64 |
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# include "stubRoutines_ppc_64.hpp" |
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#endif |
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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 _handler_for_unsafe_access_entry; |
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static address _atomic_xchg_entry; |
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static address _atomic_xchg_ptr_entry; |
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static address _atomic_store_entry; |
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static address _atomic_store_ptr_entry; |
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static address _atomic_cmpxchg_entry; |
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static address _atomic_cmpxchg_ptr_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_ptr_entry; |
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static address _fence_entry; |
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static address _d2i_wrapper; |
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static address _d2l_wrapper; |
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static jint _fpu_cntrl_wrd_std; |
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static jint _fpu_cntrl_wrd_24; |
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static jint _fpu_cntrl_wrd_64; |
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static jint _fpu_cntrl_wrd_trunc; |
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static jint _mxcsr_std; |
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static jint _fpu_subnormal_bias1[3]; |
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static jint _fpu_subnormal_bias2[3]; |
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static BufferBlob* _code1; // code buffer for initial routines |
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static BufferBlob* _code2; // 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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// 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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// zero heap space aligned to jlong (8 bytes) |
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static address _zero_aligned_words; |
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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 _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 _updateBytesCRC32; |
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static address _crc_table_adr; |
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// These are versions of the java.lang.Math methods which perform |
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// the same operations as the intrinsic version. They are used for |
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// constant folding in the compiler to ensure equivalence. If the |
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// intrinsic version returns the same result as the strict version |
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// then they can be set to the appropriate function from |
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// SharedRuntime. |
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static double (*_intrinsic_log)(double); |
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static double (*_intrinsic_log10)(double); |
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static double (*_intrinsic_exp)(double); |
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static double (*_intrinsic_pow)(double, double); |
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static double (*_intrinsic_sin)(double); |
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static double (*_intrinsic_cos)(double); |
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static double (*_intrinsic_tan)(double); |
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// Safefetch stubs. |
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static address _safefetch32_entry; |
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static address _safefetch32_fault_pc; |
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static address _safefetch32_continuation_pc; |
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static address _safefetchN_entry; |
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static address _safefetchN_fault_pc; |
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static address _safefetchN_continuation_pc; |
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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 bool is_stub_code(address addr) { return contains(addr); } |
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||
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static bool contains(address addr) { |
235 |
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 CodeBlob* code1() { return _code1; } |
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static CodeBlob* code2() { return _code2; } |
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// Debugging |
244 |
static jint verify_oop_count() { return _verify_oop_count; } |
|
245 |
static jint* verify_oop_count_addr() { return &_verify_oop_count; } |
|
246 |
// a subroutine for debugging the GC |
|
247 |
static address verify_oop_subroutine_entry_address() { return (address)&_verify_oop_subroutine_entry; } |
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248 |
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249 |
static address catch_exception_entry() { return _catch_exception_entry; } |
|
250 |
||
251 |
// Calls to Java |
|
252 |
typedef void (*CallStub)( |
|
253 |
address link, |
|
254 |
intptr_t* result, |
|
255 |
BasicType result_type, |
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Method* method, |
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address entry_point, |
258 |
intptr_t* parameters, |
|
259 |
int size_of_parameters, |
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260 |
TRAPS |
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261 |
); |
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262 |
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263 |
static CallStub call_stub() { return CAST_TO_FN_PTR(CallStub, _call_stub_entry); } |
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264 |
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265 |
// Exceptions |
|
266 |
static address forward_exception_entry() { return _forward_exception_entry; } |
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267 |
// Implicit exceptions |
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268 |
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; } |
271 |
static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; } |
|
272 |
||
273 |
// Exceptions during unsafe access - should throw Java exception rather |
|
274 |
// than crash. |
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275 |
static address handler_for_unsafe_access() { return _handler_for_unsafe_access_entry; } |
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276 |
||
277 |
static address atomic_xchg_entry() { return _atomic_xchg_entry; } |
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278 |
static address atomic_xchg_ptr_entry() { return _atomic_xchg_ptr_entry; } |
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279 |
static address atomic_store_entry() { return _atomic_store_entry; } |
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280 |
static address atomic_store_ptr_entry() { return _atomic_store_ptr_entry; } |
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281 |
static address atomic_cmpxchg_entry() { return _atomic_cmpxchg_entry; } |
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282 |
static address atomic_cmpxchg_ptr_entry() { return _atomic_cmpxchg_ptr_entry; } |
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283 |
static address atomic_cmpxchg_long_entry() { return _atomic_cmpxchg_long_entry; } |
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284 |
static address atomic_add_entry() { return _atomic_add_entry; } |
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285 |
static address atomic_add_ptr_entry() { return _atomic_add_ptr_entry; } |
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286 |
static address fence_entry() { return _fence_entry; } |
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287 |
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288 |
static address d2i_wrapper() { return _d2i_wrapper; } |
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289 |
static address d2l_wrapper() { return _d2l_wrapper; } |
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static jint fpu_cntrl_wrd_std() { return _fpu_cntrl_wrd_std; } |
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291 |
static address addr_fpu_cntrl_wrd_std() { return (address)&_fpu_cntrl_wrd_std; } |
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static address addr_fpu_cntrl_wrd_24() { return (address)&_fpu_cntrl_wrd_24; } |
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293 |
static address addr_fpu_cntrl_wrd_64() { return (address)&_fpu_cntrl_wrd_64; } |
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static address addr_fpu_cntrl_wrd_trunc() { return (address)&_fpu_cntrl_wrd_trunc; } |
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static address addr_mxcsr_std() { return (address)&_mxcsr_std; } |
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296 |
static address addr_fpu_subnormal_bias1() { return (address)&_fpu_subnormal_bias1; } |
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static address addr_fpu_subnormal_bias2() { return (address)&_fpu_subnormal_bias2; } |
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298 |
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299 |
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static address select_arraycopy_function(BasicType t, bool aligned, bool disjoint, const char* &name, bool dest_uninitialized); |
301 |
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1 | 302 |
static address jbyte_arraycopy() { return _jbyte_arraycopy; } |
303 |
static address jshort_arraycopy() { return _jshort_arraycopy; } |
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304 |
static address jint_arraycopy() { return _jint_arraycopy; } |
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305 |
static address jlong_arraycopy() { return _jlong_arraycopy; } |
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static address oop_arraycopy(bool dest_uninitialized = false) { |
307 |
return dest_uninitialized ? _oop_arraycopy_uninit : _oop_arraycopy; |
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308 |
} |
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1 | 309 |
static address jbyte_disjoint_arraycopy() { return _jbyte_disjoint_arraycopy; } |
310 |
static address jshort_disjoint_arraycopy() { return _jshort_disjoint_arraycopy; } |
|
311 |
static address jint_disjoint_arraycopy() { return _jint_disjoint_arraycopy; } |
|
312 |
static address jlong_disjoint_arraycopy() { return _jlong_disjoint_arraycopy; } |
|
8498 | 313 |
static address oop_disjoint_arraycopy(bool dest_uninitialized = false) { |
314 |
return dest_uninitialized ? _oop_disjoint_arraycopy_uninit : _oop_disjoint_arraycopy; |
|
315 |
} |
|
1 | 316 |
|
317 |
static address arrayof_jbyte_arraycopy() { return _arrayof_jbyte_arraycopy; } |
|
318 |
static address arrayof_jshort_arraycopy() { return _arrayof_jshort_arraycopy; } |
|
319 |
static address arrayof_jint_arraycopy() { return _arrayof_jint_arraycopy; } |
|
320 |
static address arrayof_jlong_arraycopy() { return _arrayof_jlong_arraycopy; } |
|
8498 | 321 |
static address arrayof_oop_arraycopy(bool dest_uninitialized = false) { |
322 |
return dest_uninitialized ? _arrayof_oop_arraycopy_uninit : _arrayof_oop_arraycopy; |
|
323 |
} |
|
1 | 324 |
|
325 |
static address arrayof_jbyte_disjoint_arraycopy() { return _arrayof_jbyte_disjoint_arraycopy; } |
|
326 |
static address arrayof_jshort_disjoint_arraycopy() { return _arrayof_jshort_disjoint_arraycopy; } |
|
327 |
static address arrayof_jint_disjoint_arraycopy() { return _arrayof_jint_disjoint_arraycopy; } |
|
328 |
static address arrayof_jlong_disjoint_arraycopy() { return _arrayof_jlong_disjoint_arraycopy; } |
|
8498 | 329 |
static address arrayof_oop_disjoint_arraycopy(bool dest_uninitialized = false) { |
330 |
return dest_uninitialized ? _arrayof_oop_disjoint_arraycopy_uninit : _arrayof_oop_disjoint_arraycopy; |
|
331 |
} |
|
1 | 332 |
|
8498 | 333 |
static address checkcast_arraycopy(bool dest_uninitialized = false) { |
334 |
return dest_uninitialized ? _checkcast_arraycopy_uninit : _checkcast_arraycopy; |
|
335 |
} |
|
1 | 336 |
static address unsafe_arraycopy() { return _unsafe_arraycopy; } |
337 |
static address generic_arraycopy() { return _generic_arraycopy; } |
|
338 |
||
6433 | 339 |
static address jbyte_fill() { return _jbyte_fill; } |
340 |
static address jshort_fill() { return _jshort_fill; } |
|
341 |
static address jint_fill() { return _jint_fill; } |
|
342 |
static address arrayof_jbyte_fill() { return _arrayof_jbyte_fill; } |
|
343 |
static address arrayof_jshort_fill() { return _arrayof_jshort_fill; } |
|
344 |
static address arrayof_jint_fill() { return _arrayof_jint_fill; } |
|
345 |
||
14132 | 346 |
static address aescrypt_encryptBlock() { return _aescrypt_encryptBlock; } |
347 |
static address aescrypt_decryptBlock() { return _aescrypt_decryptBlock; } |
|
348 |
static address cipherBlockChaining_encryptAESCrypt() { return _cipherBlockChaining_encryptAESCrypt; } |
|
349 |
static address cipherBlockChaining_decryptAESCrypt() { return _cipherBlockChaining_decryptAESCrypt; } |
|
350 |
||
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|
351 |
static address sha1_implCompress() { return _sha1_implCompress; } |
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|
352 |
static address sha1_implCompressMB() { return _sha1_implCompressMB; } |
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|
353 |
static address sha256_implCompress() { return _sha256_implCompress; } |
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|
354 |
static address sha256_implCompressMB() { return _sha256_implCompressMB; } |
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|
355 |
static address sha512_implCompress() { return _sha512_implCompress; } |
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|
356 |
static address sha512_implCompressMB() { return _sha512_implCompressMB; } |
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|
357 |
|
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|
358 |
static address updateBytesCRC32() { return _updateBytesCRC32; } |
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|
359 |
static address crc_table_addr() { return _crc_table_adr; } |
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|
360 |
|
6433 | 361 |
static address select_fill_function(BasicType t, bool aligned, const char* &name); |
362 |
||
10501 | 363 |
static address zero_aligned_words() { return _zero_aligned_words; } |
6433 | 364 |
|
4645
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|
365 |
static double intrinsic_log(double d) { |
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|
366 |
assert(_intrinsic_log != NULL, "must be defined"); |
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|
367 |
return _intrinsic_log(d); |
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|
368 |
} |
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|
369 |
static double intrinsic_log10(double d) { |
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changeset
|
370 |
assert(_intrinsic_log != NULL, "must be defined"); |
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|
371 |
return _intrinsic_log10(d); |
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parents:
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changeset
|
372 |
} |
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changeset
|
373 |
static double intrinsic_exp(double d) { |
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changeset
|
374 |
assert(_intrinsic_exp != NULL, "must be defined"); |
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parents:
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changeset
|
375 |
return _intrinsic_exp(d); |
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parents:
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diff
changeset
|
376 |
} |
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|
377 |
static double intrinsic_pow(double d, double d2) { |
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|
378 |
assert(_intrinsic_pow != NULL, "must be defined"); |
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|
379 |
return _intrinsic_pow(d, d2); |
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parents:
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changeset
|
380 |
} |
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parents:
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|
381 |
static double intrinsic_sin(double d) { |
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changeset
|
382 |
assert(_intrinsic_sin != NULL, "must be defined"); |
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parents:
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changeset
|
383 |
return _intrinsic_sin(d); |
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parents:
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diff
changeset
|
384 |
} |
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parents:
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|
385 |
static double intrinsic_cos(double d) { |
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|
386 |
assert(_intrinsic_cos != NULL, "must be defined"); |
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parents:
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changeset
|
387 |
return _intrinsic_cos(d); |
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parents:
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changeset
|
388 |
} |
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|
389 |
static double intrinsic_tan(double d) { |
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parents:
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changeset
|
390 |
assert(_intrinsic_tan != NULL, "must be defined"); |
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parents:
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diff
changeset
|
391 |
return _intrinsic_tan(d); |
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parents:
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changeset
|
392 |
} |
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|
393 |
|
1 | 394 |
// |
18740 | 395 |
// Safefetch stub support |
396 |
// |
|
397 |
||
398 |
typedef int (*SafeFetch32Stub)(int* adr, int errValue); |
|
399 |
typedef intptr_t (*SafeFetchNStub) (intptr_t* adr, intptr_t errValue); |
|
400 |
||
401 |
static SafeFetch32Stub SafeFetch32_stub() { return CAST_TO_FN_PTR(SafeFetch32Stub, _safefetch32_entry); } |
|
402 |
static SafeFetchNStub SafeFetchN_stub() { return CAST_TO_FN_PTR(SafeFetchNStub, _safefetchN_entry); } |
|
403 |
||
404 |
static bool is_safefetch_fault(address pc) { |
|
405 |
return pc != NULL && |
|
406 |
(pc == _safefetch32_fault_pc || |
|
407 |
pc == _safefetchN_fault_pc); |
|
408 |
} |
|
409 |
||
410 |
static address continuation_for_safefetch_fault(address pc) { |
|
411 |
assert(_safefetch32_continuation_pc != NULL && |
|
412 |
_safefetchN_continuation_pc != NULL, |
|
413 |
"not initialized"); |
|
414 |
||
415 |
if (pc == _safefetch32_fault_pc) return _safefetch32_continuation_pc; |
|
416 |
if (pc == _safefetchN_fault_pc) return _safefetchN_continuation_pc; |
|
417 |
||
418 |
ShouldNotReachHere(); |
|
419 |
return NULL; |
|
420 |
} |
|
421 |
||
422 |
// |
|
1 | 423 |
// Default versions of the above arraycopy functions for platforms which do |
424 |
// not have specialized versions |
|
425 |
// |
|
8498 | 426 |
static void jbyte_copy (jbyte* src, jbyte* dest, size_t count); |
427 |
static void jshort_copy (jshort* src, jshort* dest, size_t count); |
|
428 |
static void jint_copy (jint* src, jint* dest, size_t count); |
|
429 |
static void jlong_copy (jlong* src, jlong* dest, size_t count); |
|
430 |
static void oop_copy (oop* src, oop* dest, size_t count); |
|
431 |
static void oop_copy_uninit(oop* src, oop* dest, size_t count); |
|
1 | 432 |
|
8498 | 433 |
static void arrayof_jbyte_copy (HeapWord* src, HeapWord* dest, size_t count); |
434 |
static void arrayof_jshort_copy (HeapWord* src, HeapWord* dest, size_t count); |
|
435 |
static void arrayof_jint_copy (HeapWord* src, HeapWord* dest, size_t count); |
|
436 |
static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count); |
|
437 |
static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count); |
|
438 |
static void arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count); |
|
1 | 439 |
}; |
7397 | 440 |
|
18740 | 441 |
// Safefetch allows to load a value from a location that's not known |
442 |
// to be valid. If the load causes a fault, the error value is returned. |
|
443 |
inline int SafeFetch32(int* adr, int errValue) { |
|
444 |
assert(StubRoutines::SafeFetch32_stub(), "stub not yet generated"); |
|
445 |
return StubRoutines::SafeFetch32_stub()(adr, errValue); |
|
446 |
} |
|
447 |
inline intptr_t SafeFetchN(intptr_t* adr, intptr_t errValue) { |
|
448 |
assert(StubRoutines::SafeFetchN_stub(), "stub not yet generated"); |
|
449 |
return StubRoutines::SafeFetchN_stub()(adr, errValue); |
|
450 |
} |
|
451 |
||
7397 | 452 |
#endif // SHARE_VM_RUNTIME_STUBROUTINES_HPP |