Mercurial > hg > truffle
annotate src/share/vm/utilities/globalDefinitions_visCPP.hpp @ 1994:6cd6d394f280
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
7002546: regression on SpecJbb2005 on 7b118 comparing to 7b117 on small heaps
Summary: Relaxed assertion checking related to incremental_collection_failed flag to allow for ExplicitGCInvokesConcurrent behaviour where we do not want a failing scavenge to bail to a stop-world collection. Parameterized incremental_collection_will_fail() so we can selectively use, or not use, as appropriate, the statistical prediction at specific use sites. This essentially reverts the scavenge bail-out logic to what it was prior to some recent changes that had inadvertently started using the statistical prediction which can be noisy in the presence of bursty loads. Added some associated verbose non-product debugging messages.
Reviewed-by: johnc, tonyp
| author | ysr |
|---|---|
| date | Tue, 07 Dec 2010 21:55:53 -0800 |
| parents | f95d63e2154a |
| children | 4a9604cd7c5f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 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:
844
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
844
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:
844
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP |
| 26 #define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP | |
| 27 | |
| 28 #include "prims/jni.h" | |
| 29 | |
| 0 | 30 // This file holds compiler-dependent includes, |
| 31 // globally used constants & types, class (forward) | |
| 32 // declarations and a few frequently used utility functions. | |
| 33 | |
| 34 # include <ctype.h> | |
| 35 # include <string.h> | |
| 36 # include <stdarg.h> | |
| 37 # include <stdlib.h> | |
| 38 # include <stddef.h>// for offsetof | |
| 39 # include <io.h> // for stream.cpp | |
| 40 # include <float.h> // for _isnan | |
| 41 # include <stdio.h> // for va_list | |
| 42 # include <time.h> | |
| 43 # include <fcntl.h> | |
| 44 // Need this on windows to get the math constants (e.g., M_PI). | |
| 45 #define _USE_MATH_DEFINES | |
| 46 # include <math.h> | |
| 47 | |
| 48 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures | |
| 49 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in | |
| 50 // system header files. On 32-bit architectures, there is no problem. | |
| 51 // On 64-bit architectures, defining NULL as a 32-bit constant can cause | |
| 52 // problems with varargs functions: C++ integral promotion rules say for | |
| 53 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a | |
| 54 // varargs function it will remain 32-bits. Depending on the calling | |
| 55 // convention of the machine, if the argument is passed on the stack then | |
| 56 // only 32-bits of the "NULL" pointer may be initialized to zero. The | |
| 57 // other 32-bits will be garbage. If the varargs function is expecting a | |
| 58 // pointer when it extracts the argument, then we may have a problem. | |
| 59 // | |
| 60 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. | |
| 61 #ifdef _LP64 | |
| 62 #undef NULL | |
| 63 // 64-bit Windows uses a P64 data model (not LP64, although we define _LP64) | |
| 64 // Since longs are 32-bit we cannot use 0L here. Use the Visual C++ specific | |
| 65 // 64-bit integer-suffix (i64) instead. | |
| 66 #define NULL 0i64 | |
| 67 #else | |
| 68 #ifndef NULL | |
| 69 #define NULL 0 | |
| 70 #endif | |
| 71 #endif | |
| 72 | |
| 73 // NULL vs NULL_WORD: | |
| 74 // On Linux NULL is defined as a special type '__null'. Assigning __null to | |
| 75 // integer variable will cause gcc warning. Use NULL_WORD in places where a | |
| 76 // pointer is stored as integer value. | |
| 77 #define NULL_WORD NULL | |
| 78 | |
| 79 // Compiler-specific primitive types | |
| 80 typedef unsigned __int8 uint8_t; | |
| 81 typedef unsigned __int16 uint16_t; | |
| 82 typedef unsigned __int32 uint32_t; | |
| 83 typedef unsigned __int64 uint64_t; | |
| 84 | |
| 85 #ifdef _WIN64 | |
| 86 typedef unsigned __int64 uintptr_t; | |
| 87 #else | |
| 88 typedef unsigned int uintptr_t; | |
| 89 #endif | |
| 90 typedef signed __int8 int8_t; | |
| 91 typedef signed __int16 int16_t; | |
| 92 typedef signed __int32 int32_t; | |
| 93 typedef signed __int64 int64_t; | |
| 94 #ifdef _WIN64 | |
| 95 typedef signed __int64 intptr_t; | |
| 96 typedef signed __int64 ssize_t; | |
| 97 #else | |
| 98 typedef signed int intptr_t; | |
| 99 typedef signed int ssize_t; | |
| 100 #endif | |
| 101 | |
| 102 //---------------------------------------------------------------------------------------------------- | |
| 103 // Additional Java basic types | |
| 104 | |
| 105 typedef unsigned char jubyte; | |
| 106 typedef unsigned short jushort; | |
| 107 typedef unsigned int juint; | |
| 108 typedef unsigned __int64 julong; | |
| 109 | |
| 110 //---------------------------------------------------------------------------------------------------- | |
| 111 // Special (possibly not-portable) casts | |
| 112 // Cast floats into same-size integers and vice-versa w/o changing bit-pattern | |
| 113 | |
| 114 inline jint jint_cast (jfloat x) { return *(jint* )&x; } | |
| 115 inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } | |
| 116 | |
| 117 inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } | |
| 118 inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } | |
| 119 | |
| 120 | |
| 121 //---------------------------------------------------------------------------------------------------- | |
| 122 // Non-standard stdlib-like stuff: | |
| 123 inline int strcasecmp(const char *s1, const char *s2) { return _stricmp(s1,s2); } | |
| 124 | |
| 125 | |
| 126 //---------------------------------------------------------------------------------------------------- | |
| 127 // Debugging | |
| 128 | |
| 129 #if _WIN64 | |
| 130 extern "C" void breakpoint(); | |
| 131 #define BREAKPOINT ::breakpoint() | |
| 132 #else | |
| 133 #define BREAKPOINT __asm { int 3 } | |
| 134 #endif | |
| 135 | |
| 136 //---------------------------------------------------------------------------------------------------- | |
| 137 // Checking for nanness | |
| 138 | |
| 139 inline int g_isnan(jfloat f) { return _isnan(f); } | |
| 140 inline int g_isnan(jdouble f) { return _isnan(f); } | |
| 141 | |
| 142 //---------------------------------------------------------------------------------------------------- | |
| 143 // Checking for finiteness | |
| 144 | |
| 145 inline int g_isfinite(jfloat f) { return _finite(f); } | |
| 146 inline int g_isfinite(jdouble f) { return _finite(f); } | |
| 147 | |
| 148 //---------------------------------------------------------------------------------------------------- | |
| 149 // Constant for jlong (specifying an long long constant is C++ compiler specific) | |
| 150 | |
| 151 // Build a 64bit integer constant on with Visual C++ | |
| 152 #define CONST64(x) (x ## i64) | |
| 153 #define UCONST64(x) ((uint64_t)CONST64(x)) | |
| 154 | |
| 155 const jlong min_jlong = CONST64(0x8000000000000000); | |
| 156 const jlong max_jlong = CONST64(0x7fffffffffffffff); | |
| 157 | |
| 158 //---------------------------------------------------------------------------------------------------- | |
| 159 // Miscellaneous | |
| 160 | |
| 161 // Visual Studio 2005 deprecates POSIX names - use ISO C++ names instead | |
|
645
c3a720eefe82
6816308: Changes to allow builds with latest Windows SDK 6.1 on 64bit Windows 2003
kvn
parents:
0
diff
changeset
|
162 #if _MSC_VER >= 1400 |
| 0 | 163 #define open _open |
| 164 #define close _close | |
| 165 #define read _read | |
| 166 #define write _write | |
| 167 #define lseek _lseek | |
| 168 #define unlink _unlink | |
| 169 #define strdup _strdup | |
| 170 #endif | |
| 171 | |
| 172 #pragma warning( disable : 4100 ) // unreferenced formal parameter | |
| 173 #pragma warning( disable : 4127 ) // conditional expression is constant | |
| 174 #pragma warning( disable : 4514 ) // unreferenced inline function has been removed | |
| 175 #pragma warning( disable : 4244 ) // possible loss of data | |
| 176 #pragma warning( disable : 4512 ) // assignment operator could not be generated | |
| 177 #pragma warning( disable : 4201 ) // nonstandard extension used : nameless struct/union (needed in windows.h) | |
| 178 #pragma warning( disable : 4511 ) // copy constructor could not be generated | |
| 179 #pragma warning( disable : 4291 ) // no matching operator delete found; memory will not be freed if initialization thows an exception | |
|
659
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
180 #if _MSC_VER >= 1400 |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
181 #pragma warning( disable : 4996 ) // unsafe string functions. Same as define _CRT_SECURE_NO_WARNINGS/_CRT_SECURE_NO_DEPRICATE |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
182 #endif |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
183 |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
184 inline int vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) { |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
185 // If number of characters written == count, Windows doesn't write a |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
186 // terminating NULL, so we do it ourselves. |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
187 int ret = _vsnprintf(buf, count, fmt, argptr); |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
188 if (count > 0) buf[count-1] = '\0'; |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
189 return ret; |
|
520d43965b1f
6812297: update project creation for Visual Studio 2005-2008
ikrylov
parents:
645
diff
changeset
|
190 } |
| 0 | 191 |
| 192 // Portability macros | |
| 193 #define PRAGMA_INTERFACE | |
| 194 #define PRAGMA_IMPLEMENTATION | |
| 195 #define PRAGMA_IMPLEMENTATION_(arg) | |
| 196 #define VALUE_OBJ_CLASS_SPEC : public _ValueObj | |
| 197 | |
| 198 // Formatting. | |
| 199 #define FORMAT64_MODIFIER "I64" | |
| 200 | |
| 201 #define offset_of(klass,field) offsetof(klass,field) | |
| 1972 | 202 |
| 203 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP |