jdk8-mips64-public/hotspot: src/share/vm/runtime/stubRoutines.cpp@31000d79ec71

6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
Summary: (for Serguei) Clean up use of No_Safepoint_Verifier in JVM TI
Reviewed-by: dcubed

     1 /*

     2  * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 #include "incls/_precompiled.incl"

    26 #include "incls/_stubRoutines.cpp.incl"

    29 // Implementation of StubRoutines - for a description

    30 // of how to extend it, see the header file.

    32 // Class Variables

    34 BufferBlob* StubRoutines::_code1                                = NULL;

    35 BufferBlob* StubRoutines::_code2                                = NULL;

    37 address StubRoutines::_call_stub_return_address                 = NULL;

    38 address StubRoutines::_call_stub_entry                          = NULL;

    40 address StubRoutines::_catch_exception_entry                    = NULL;

    41 address StubRoutines::_forward_exception_entry                  = NULL;

    42 address StubRoutines::_throw_AbstractMethodError_entry          = NULL;

    43 address StubRoutines::_throw_ArithmeticException_entry          = NULL;

    44 address StubRoutines::_throw_NullPointerException_entry         = NULL;

    45 address StubRoutines::_throw_NullPointerException_at_call_entry = NULL;

    46 address StubRoutines::_throw_StackOverflowError_entry           = NULL;

    47 address StubRoutines::_handler_for_unsafe_access_entry          = NULL;

    48 jint    StubRoutines::_verify_oop_count                         = 0;

    49 address StubRoutines::_verify_oop_subroutine_entry              = NULL;

    50 address StubRoutines::_atomic_xchg_entry                        = NULL;

    51 address StubRoutines::_atomic_xchg_ptr_entry                    = NULL;

    52 address StubRoutines::_atomic_store_entry                       = NULL;

    53 address StubRoutines::_atomic_store_ptr_entry                   = NULL;

    54 address StubRoutines::_atomic_cmpxchg_entry                     = NULL;

    55 address StubRoutines::_atomic_cmpxchg_ptr_entry                 = NULL;

    56 address StubRoutines::_atomic_cmpxchg_long_entry                = NULL;

    57 address StubRoutines::_atomic_add_entry                         = NULL;

    58 address StubRoutines::_atomic_add_ptr_entry                     = NULL;

    59 address StubRoutines::_fence_entry                              = NULL;

    60 address StubRoutines::_d2i_wrapper                              = NULL;

    61 address StubRoutines::_d2l_wrapper                              = NULL;

    63 jint    StubRoutines::_fpu_cntrl_wrd_std                        = 0;

    64 jint    StubRoutines::_fpu_cntrl_wrd_24                         = 0;

    65 jint    StubRoutines::_fpu_cntrl_wrd_64                         = 0;

    66 jint    StubRoutines::_fpu_cntrl_wrd_trunc                      = 0;

    67 jint    StubRoutines::_mxcsr_std                                = 0;

    68 jint    StubRoutines::_fpu_subnormal_bias1[3]                   = { 0, 0, 0 };

    69 jint    StubRoutines::_fpu_subnormal_bias2[3]                   = { 0, 0, 0 };

    71 // Compiled code entry points default values

    72 // The dafault functions don't have separate disjoint versions.

    73 address StubRoutines::_jbyte_arraycopy          = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy);

    74 address StubRoutines::_jshort_arraycopy         = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy);

    75 address StubRoutines::_jint_arraycopy           = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy);

    76 address StubRoutines::_jlong_arraycopy          = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy);

    77 address StubRoutines::_oop_arraycopy            = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy);

    78 address StubRoutines::_jbyte_disjoint_arraycopy          = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy);

    79 address StubRoutines::_jshort_disjoint_arraycopy         = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy);

    80 address StubRoutines::_jint_disjoint_arraycopy           = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy);

    81 address StubRoutines::_jlong_disjoint_arraycopy          = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy);

    82 address StubRoutines::_oop_disjoint_arraycopy            = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy);

    84 address StubRoutines::_arrayof_jbyte_arraycopy  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy);

    85 address StubRoutines::_arrayof_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy);

    86 address StubRoutines::_arrayof_jint_arraycopy   = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy);

    87 address StubRoutines::_arrayof_jlong_arraycopy  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy);

    88 address StubRoutines::_arrayof_oop_arraycopy    = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy);

    89 address StubRoutines::_arrayof_jbyte_disjoint_arraycopy  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy);

    90 address StubRoutines::_arrayof_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy);

    91 address StubRoutines::_arrayof_jint_disjoint_arraycopy   = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy);

    92 address StubRoutines::_arrayof_jlong_disjoint_arraycopy  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy);

    93 address StubRoutines::_arrayof_oop_disjoint_arraycopy  = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy);

    95 address StubRoutines::_checkcast_arraycopy               = NULL;

    96 address StubRoutines::_unsafe_arraycopy                  = NULL;

    97 address StubRoutines::_generic_arraycopy                 = NULL;

    99 // Initialization

   100 //

   101 // Note: to break cycle with universe initialization, stubs are generated in two phases.

   102 // The first one generates stubs needed during universe init (e.g., _handle_must_compile_first_entry).

   103 // The second phase includes all other stubs (which may depend on universe being initialized.)

   105 extern void StubGenerator_generate(CodeBuffer* code, bool all); // only interface to generators

   107 void StubRoutines::initialize1() {

   108   if (_code1 == NULL) {

   109     ResourceMark rm;

   110     TraceTime timer("StubRoutines generation 1", TraceStartupTime);

   111     _code1 = BufferBlob::create("StubRoutines (1)", code_size1);

   112     if( _code1 == NULL) vm_exit_out_of_memory1(code_size1, "CodeCache: no room for %s", "StubRoutines (1)");

   113     CodeBuffer buffer(_code1->instructions_begin(), _code1->instructions_size());

   114     StubGenerator_generate(&buffer, false);

   115   }

   116 }

   119 #ifdef ASSERT

   120 typedef void (*arraycopy_fn)(address src, address dst, int count);

   122 // simple tests of generated arraycopy functions

   123 static void test_arraycopy_func(address func, int alignment) {

   124   int v = 0xcc;

   125   int v2 = 0x11;

   126   jlong lbuffer[2];

   127   jlong lbuffer2[2];

   128   address buffer  = (address) lbuffer;

   129   address buffer2 = (address) lbuffer2;

   130   unsigned int i;

   131   for (i = 0; i < sizeof(lbuffer); i++) {

   132     buffer[i] = v; buffer2[i] = v2;

   133   }

   134   // do an aligned copy

   135   ((arraycopy_fn)func)(buffer, buffer2, 0);

   136   for (i = 0; i < sizeof(lbuffer); i++) {

   137     assert(buffer[i] == v && buffer2[i] == v2, "shouldn't have copied anything");

   138   }

   139   // adjust destination alignment

   140   ((arraycopy_fn)func)(buffer, buffer2 + alignment, 0);

   141   for (i = 0; i < sizeof(lbuffer); i++) {

   142     assert(buffer[i] == v && buffer2[i] == v2, "shouldn't have copied anything");

   143   }

   144   // adjust source alignment

   145   ((arraycopy_fn)func)(buffer + alignment, buffer2, 0);

   146   for (i = 0; i < sizeof(lbuffer); i++) {

   147     assert(buffer[i] == v && buffer2[i] == v2, "shouldn't have copied anything");

   148   }

   149 }

   150 #endif

   153 void StubRoutines::initialize2() {

   154   if (_code2 == NULL) {

   155     ResourceMark rm;

   156     TraceTime timer("StubRoutines generation 2", TraceStartupTime);

   157     _code2 = BufferBlob::create("StubRoutines (2)", code_size2);

   158     if( _code2 == NULL) vm_exit_out_of_memory1(code_size2, "CodeCache: no room for %s", "StubRoutines (2)");

   159     CodeBuffer buffer(_code2->instructions_begin(), _code2->instructions_size());

   160     StubGenerator_generate(&buffer, true);

   161   }

   163 #ifdef ASSERT

   165 #define TEST_ARRAYCOPY(type)                                                    \

   166   test_arraycopy_func(          type##_arraycopy(),          sizeof(type));     \

   167   test_arraycopy_func(          type##_disjoint_arraycopy(), sizeof(type));     \

   168   test_arraycopy_func(arrayof_##type##_arraycopy(),          sizeof(HeapWord)); \

   169   test_arraycopy_func(arrayof_##type##_disjoint_arraycopy(), sizeof(HeapWord))

   171   // Make sure all the arraycopy stubs properly handle zeros

   172   TEST_ARRAYCOPY(jbyte);

   173   TEST_ARRAYCOPY(jshort);

   174   TEST_ARRAYCOPY(jint);

   175   TEST_ARRAYCOPY(jlong);

   177 #undef TEST_ARRAYCOPY

   179 #endif

   180 }

   183 void stubRoutines_init1() { StubRoutines::initialize1(); }

   184 void stubRoutines_init2() { StubRoutines::initialize2(); }

   186 //

   187 // Default versions of arraycopy functions

   188 //

   190 static void gen_arraycopy_barrier(oop* dest, size_t count) {

   191     assert(count != 0, "count should be non-zero");

   192     BarrierSet* bs = Universe::heap()->barrier_set();

   193     assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt");

   194     bs->write_ref_array(MemRegion((HeapWord*)dest, (HeapWord*)(dest + count)));

   195 }

   197 JRT_LEAF(void, StubRoutines::jbyte_copy(jbyte* src, jbyte* dest, size_t count))

   198 #ifndef PRODUCT

   199   SharedRuntime::_jbyte_array_copy_ctr++;      // Slow-path byte array copy

   200 #endif // !PRODUCT

   201   assert(count != 0, "count should be non-zero");

   202   Copy::conjoint_bytes_atomic(src, dest, count);

   203 JRT_END

   205 JRT_LEAF(void, StubRoutines::jshort_copy(jshort* src, jshort* dest, size_t count))

   206 #ifndef PRODUCT

   207   SharedRuntime::_jshort_array_copy_ctr++;     // Slow-path short/char array copy

   208 #endif // !PRODUCT

   209   assert(count != 0, "count should be non-zero");

   210   Copy::conjoint_jshorts_atomic(src, dest, count);

   211 JRT_END

   213 JRT_LEAF(void, StubRoutines::jint_copy(jint* src, jint* dest, size_t count))

   214 #ifndef PRODUCT

   215   SharedRuntime::_jint_array_copy_ctr++;       // Slow-path int/float array copy

   216 #endif // !PRODUCT

   217   assert(count != 0, "count should be non-zero");

   218   Copy::conjoint_jints_atomic(src, dest, count);

   219 JRT_END

   221 JRT_LEAF(void, StubRoutines::jlong_copy(jlong* src, jlong* dest, size_t count))

   222 #ifndef PRODUCT

   223   SharedRuntime::_jlong_array_copy_ctr++;      // Slow-path long/double array copy

   224 #endif // !PRODUCT

   225   assert(count != 0, "count should be non-zero");

   226   Copy::conjoint_jlongs_atomic(src, dest, count);

   227 JRT_END

   229 JRT_LEAF(void, StubRoutines::oop_copy(oop* src, oop* dest, size_t count))

   230 #ifndef PRODUCT

   231   SharedRuntime::_oop_array_copy_ctr++;        // Slow-path oop array copy

   232 #endif // !PRODUCT

   233   assert(count != 0, "count should be non-zero");

   234   Copy::conjoint_oops_atomic(src, dest, count);

   235   gen_arraycopy_barrier(dest, count);

   236 JRT_END

   238 JRT_LEAF(void, StubRoutines::arrayof_jbyte_copy(HeapWord* src, HeapWord* dest, size_t count))

   239 #ifndef PRODUCT

   240   SharedRuntime::_jbyte_array_copy_ctr++;      // Slow-path byte array copy

   241 #endif // !PRODUCT

   242   assert(count != 0, "count should be non-zero");

   243   Copy::arrayof_conjoint_bytes(src, dest, count);

   244 JRT_END

   246 JRT_LEAF(void, StubRoutines::arrayof_jshort_copy(HeapWord* src, HeapWord* dest, size_t count))

   247 #ifndef PRODUCT

   248   SharedRuntime::_jshort_array_copy_ctr++;     // Slow-path short/char array copy

   249 #endif // !PRODUCT

   250   assert(count != 0, "count should be non-zero");

   251   Copy::arrayof_conjoint_jshorts(src, dest, count);

   252 JRT_END

   254 JRT_LEAF(void, StubRoutines::arrayof_jint_copy(HeapWord* src, HeapWord* dest, size_t count))

   255 #ifndef PRODUCT

   256   SharedRuntime::_jint_array_copy_ctr++;       // Slow-path int/float array copy

   257 #endif // !PRODUCT

   258   assert(count != 0, "count should be non-zero");

   259   Copy::arrayof_conjoint_jints(src, dest, count);

   260 JRT_END

   262 JRT_LEAF(void, StubRoutines::arrayof_jlong_copy(HeapWord* src, HeapWord* dest, size_t count))

   263 #ifndef PRODUCT

   264   SharedRuntime::_jlong_array_copy_ctr++;       // Slow-path int/float array copy

   265 #endif // !PRODUCT

   266   assert(count != 0, "count should be non-zero");

   267   Copy::arrayof_conjoint_jlongs(src, dest, count);

   268 JRT_END

   270 JRT_LEAF(void, StubRoutines::arrayof_oop_copy(HeapWord* src, HeapWord* dest, size_t count))

   271 #ifndef PRODUCT

   272   SharedRuntime::_oop_array_copy_ctr++;        // Slow-path oop array copy

   273 #endif // !PRODUCT

   274   assert(count != 0, "count should be non-zero");

   275   Copy::arrayof_conjoint_oops(src, dest, count);

   276   gen_arraycopy_barrier((oop *) dest, count);

   277 JRT_END

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/runtime/stubRoutines.cpp@31000d79ec71

src/share/vm/runtime/stubRoutines.cpp