Mercurial > hg > truffle
annotate src/share/vm/runtime/stubCodeGenerator.cpp @ 1721:413ad0331a0c
6977924: Changes for 6975078 produce build error with certain gcc versions
Summary: The changes introduced for 6975078 assign badHeapOopVal to the _allocation field in the ResourceObj class. In 32 bit linux builds with certain versions of gcc this assignment will be flagged as an error while compiling allocation.cpp. In 32 bit builds the constant value badHeapOopVal (which is cast to an intptr_t) is negative. The _allocation field is typed as an unsigned intptr_t and gcc catches this as an error.
Reviewed-by: jcoomes, ysr, phh
| author | johnc |
|---|---|
| date | Wed, 18 Aug 2010 10:59:06 -0700 |
| parents | 126ea7725993 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1552
diff
changeset
|
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
196
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
196
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
196
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_stubCodeGenerator.cpp.incl" | |
| 27 | |
| 28 | |
| 29 // Implementation of StubCodeDesc | |
| 30 | |
| 31 StubCodeDesc* StubCodeDesc::_list = NULL; | |
| 32 int StubCodeDesc::_count = 0; | |
| 33 | |
| 34 | |
| 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 } | |
| 41 | |
| 42 | |
| 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 } | |
| 48 | |
| 49 | |
| 50 const char* StubCodeDesc::name_for(address pc) { | |
| 51 StubCodeDesc* p = desc_for(pc); | |
| 52 return p == NULL ? NULL : p->name(); | |
| 53 } | |
| 54 | |
| 55 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1644
diff
changeset
|
56 void StubCodeDesc::print_on(outputStream* st) const { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1644
diff
changeset
|
57 st->print(group()); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1644
diff
changeset
|
58 st->print("::"); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1644
diff
changeset
|
59 st->print(name()); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1644
diff
changeset
|
60 st->print(" [" INTPTR_FORMAT ", " INTPTR_FORMAT "[ (%d bytes)", begin(), end(), size_in_bytes()); |
| 0 | 61 } |
| 62 | |
| 63 // Implementation of StubCodeGenerator | |
| 64 | |
| 65 StubCodeGenerator::StubCodeGenerator(CodeBuffer* code) { | |
| 66 _masm = new MacroAssembler(code); | |
| 67 _first_stub = _last_stub = NULL; | |
| 68 } | |
| 69 | |
| 70 extern "C" { | |
| 71 static int compare_cdesc(const void* void_a, const void* void_b) { | |
| 72 int ai = (*((StubCodeDesc**) void_a))->index(); | |
| 73 int bi = (*((StubCodeDesc**) void_b))->index(); | |
| 74 return ai - bi; | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 StubCodeGenerator::~StubCodeGenerator() { | |
| 79 if (PrintStubCode) { | |
| 80 CodeBuffer* cbuf = _masm->code(); | |
| 81 CodeBlob* blob = CodeCache::find_blob_unsafe(cbuf->insts()->start()); | |
| 82 if (blob != NULL) { | |
| 83 blob->set_comments(cbuf->comments()); | |
| 84 } | |
| 85 bool saw_first = false; | |
| 86 StubCodeDesc* toprint[1000]; | |
| 87 int toprint_len = 0; | |
| 88 for (StubCodeDesc* cdesc = _last_stub; cdesc != NULL; cdesc = cdesc->_next) { | |
| 89 toprint[toprint_len++] = cdesc; | |
| 90 if (cdesc == _first_stub) { saw_first = true; break; } | |
| 91 } | |
| 92 assert(saw_first, "must get both first & last"); | |
| 93 // Print in reverse order: | |
| 94 qsort(toprint, toprint_len, sizeof(toprint[0]), compare_cdesc); | |
| 95 for (int i = 0; i < toprint_len; i++) { | |
| 96 StubCodeDesc* cdesc = toprint[i]; | |
| 97 cdesc->print(); | |
| 98 tty->cr(); | |
| 99 Disassembler::decode(cdesc->begin(), cdesc->end()); | |
| 100 tty->cr(); | |
| 101 } | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 | |
| 106 void StubCodeGenerator::stub_prolog(StubCodeDesc* cdesc) { | |
| 107 // default implementation - do nothing | |
| 108 } | |
| 109 | |
| 110 | |
| 111 void StubCodeGenerator::stub_epilog(StubCodeDesc* cdesc) { | |
| 112 // default implementation - record the cdesc | |
| 113 if (_first_stub == NULL) _first_stub = cdesc; | |
| 114 _last_stub = cdesc; | |
| 115 } | |
| 116 | |
| 117 | |
| 118 // Implementation of CodeMark | |
| 119 | |
| 120 StubCodeMark::StubCodeMark(StubCodeGenerator* cgen, const char* group, const char* name) { | |
| 121 _cgen = cgen; | |
| 122 _cdesc = new StubCodeDesc(group, name, _cgen->assembler()->pc()); | |
| 123 _cgen->stub_prolog(_cdesc); | |
| 124 // define the stub's beginning (= entry point) to be after the prolog: | |
| 125 _cdesc->set_begin(_cgen->assembler()->pc()); | |
| 126 } | |
| 127 | |
| 128 StubCodeMark::~StubCodeMark() { | |
| 129 _cgen->assembler()->flush(); | |
| 130 _cdesc->set_end(_cgen->assembler()->pc()); | |
| 131 assert(StubCodeDesc::_list == _cdesc, "expected order on list"); | |
| 132 _cgen->stub_epilog(_cdesc); | |
| 133 Forte::register_stub(_cdesc->name(), _cdesc->begin(), _cdesc->end()); | |
| 134 | |
| 135 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 136 JvmtiExport::post_dynamic_code_generated(_cdesc->name(), _cdesc->begin(), _cdesc->end()); | |
| 137 } | |
| 138 } |