jdk8-mips64-public/hotspot: src/share/vm/runtime/stubRoutines.hpp@024be04bb151 (annotated)

src/share/vm/runtime/stubRoutines.hpp@024be04bb151 (annotated)

src/share/vm/runtime/stubRoutines.hpp

Tue, 29 May 2018 20:20:25 +0800

author: aoqi
date: Tue, 29 May 2018 20:20:25 +0800
changeset 9122: 024be04bb151
parent 8604: 04d83ba48607
child 9806: 758c07667682
permissions: -rw-r--r--

Merge

 /*
  * 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.
  *
  */
 /*
  * This file has been modified by Loongson Technology in 2015. These
  * modifications are Copyright (c) 2015 Loongson Technology, and are made
  * available on the same license terms set forth above.
  */
 #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"
 #ifdef TARGET_ARCH_x86
 # include "nativeInst_x86.hpp"
 #endif
 #ifdef TARGET_ARCH_sparc
 # include "nativeInst_sparc.hpp"
 #endif
 #ifdef TARGET_ARCH_zero
 # include "nativeInst_zero.hpp"
 #endif
 #ifdef TARGET_ARCH_arm
 # include "nativeInst_arm.hpp"
 #endif
 #ifdef TARGET_ARCH_ppc
 # include "nativeInst_ppc.hpp"
 #endif
 #ifdef TARGET_ARCH_mips
 # include "nativeInst_mips.hpp"
 #endif
 // 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_mips_64
 # include "stubRoutines_mips_64.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_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 _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 _multiplyToLen;
   static address _squareToLen;
   static address _mulAdd;
   static address _montgomeryMultiply;
   static address _montgomerySquare;
   // 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_exp)(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_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 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 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 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_exp(double d) {
     assert(_intrinsic_exp != NULL, "must be defined");
     return _intrinsic_exp(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);
 }
 #endif // SHARE_VM_RUNTIME_STUBROUTINES_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/runtime/stubRoutines.hpp@024be04bb151 (annotated)

src/share/vm/runtime/stubRoutines.hpp