jdk8-mips64-public/hotspot: src/share/vm/runtime/stubCodeGenerator.cpp@c6ff24ceec1c

6686407: Fix for 6666698 broke -XX:BiasedLockingStartupDelay=0
Summary: Stack allocated VM_EnableBiasedLocking op must be marked as such
Reviewed-by: xlu, acorn, never, dholmes

     1 /*

     2  * Copyright 1997-2004 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/_stubCodeGenerator.cpp.incl"

    29 // Implementation of StubCodeDesc

    31 StubCodeDesc* StubCodeDesc::_list = NULL;

    32 int           StubCodeDesc::_count = 0;

    35 StubCodeDesc* StubCodeDesc::desc_for(address pc) {

    36   StubCodeDesc* p = _list;

    37   while (p != NULL && !p->contains(pc)) p = p->_next;

    38   // p == NULL || p->contains(pc)

    39   return p;

    40 }

    43 StubCodeDesc* StubCodeDesc::desc_for_index(int index) {

    44   StubCodeDesc* p = _list;

    45   while (p != NULL && p->index() != index) p = p->_next;

    46   return p;

    47 }

    50 const char* StubCodeDesc::name_for(address pc) {

    51   StubCodeDesc* p = desc_for(pc);

    52   return p == NULL ? NULL : p->name();

    53 }

    56 void StubCodeDesc::print() {

    57   tty->print(group());

    58   tty->print("::");

    59   tty->print(name());

    60   tty->print(" [" INTPTR_FORMAT ", " INTPTR_FORMAT "[ (%d bytes)", begin(), end(), size_in_bytes());

    61 }

    65 // Implementation of StubCodeGenerator

    67 StubCodeGenerator::StubCodeGenerator(CodeBuffer* code) {

    68   _masm = new MacroAssembler(code);

    69   _first_stub = _last_stub = NULL;

    70 }

    72 #ifndef PRODUCT

    73 extern "C" {

    74   static int compare_cdesc(const void* void_a, const void* void_b) {

    75     int ai = (*((StubCodeDesc**) void_a))->index();

    76     int bi = (*((StubCodeDesc**) void_b))->index();

    77     return ai - bi;

    78   }

    79 }

    80 #endif

    82 StubCodeGenerator::~StubCodeGenerator() {

    83 #ifndef PRODUCT

    84   if (PrintStubCode) {

    85     CodeBuffer* cbuf = _masm->code();

    86     CodeBlob*   blob = CodeCache::find_blob_unsafe(cbuf->insts()->start());

    87     if (blob != NULL) {

    88       blob->set_comments(cbuf->comments());

    89     }

    90     bool saw_first = false;

    91     StubCodeDesc* toprint[1000];

    92     int toprint_len = 0;

    93     for (StubCodeDesc* cdesc = _last_stub; cdesc != NULL; cdesc = cdesc->_next) {

    94       toprint[toprint_len++] = cdesc;

    95       if (cdesc == _first_stub) { saw_first = true; break; }

    96     }

    97     assert(saw_first, "must get both first & last");

    98     // Print in reverse order:

    99     qsort(toprint, toprint_len, sizeof(toprint[0]), compare_cdesc);

   100     for (int i = 0; i < toprint_len; i++) {

   101       StubCodeDesc* cdesc = toprint[i];

   102       cdesc->print();

   103       tty->cr();

   104       Disassembler::decode(cdesc->begin(), cdesc->end());

   105       tty->cr();

   106     }

   107   }

   108 #endif //PRODUCT

   109 }

   112 void StubCodeGenerator::stub_prolog(StubCodeDesc* cdesc) {

   113   // default implementation - do nothing

   114 }

   117 void StubCodeGenerator::stub_epilog(StubCodeDesc* cdesc) {

   118   // default implementation - record the cdesc

   119   if (_first_stub == NULL)  _first_stub = cdesc;

   120   _last_stub = cdesc;

   121 }

   124 // Implementation of CodeMark

   126 StubCodeMark::StubCodeMark(StubCodeGenerator* cgen, const char* group, const char* name) {

   127   _cgen  = cgen;

   128   _cdesc = new StubCodeDesc(group, name, _cgen->assembler()->pc());

   129   _cgen->stub_prolog(_cdesc);

   130   // define the stub's beginning (= entry point) to be after the prolog:

   131   _cdesc->set_begin(_cgen->assembler()->pc());

   132 }

   134 StubCodeMark::~StubCodeMark() {

   135   _cgen->assembler()->flush();

   136   _cdesc->set_end(_cgen->assembler()->pc());

   137   assert(StubCodeDesc::_list == _cdesc, "expected order on list");

   138   _cgen->stub_epilog(_cdesc);

   139   VTune::register_stub(_cdesc->name(), _cdesc->begin(), _cdesc->end());

   140   Forte::register_stub(_cdesc->name(), _cdesc->begin(), _cdesc->end());

   142   if (JvmtiExport::should_post_dynamic_code_generated()) {

   143     JvmtiExport::post_dynamic_code_generated(_cdesc->name(), _cdesc->begin(), _cdesc->end());

   144   }

   145 }

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

src/share/vm/runtime/stubCodeGenerator.cpp@c6ff24ceec1c

src/share/vm/runtime/stubCodeGenerator.cpp