Mercurial > hg > truffle
annotate src/share/vm/utilities/globalDefinitions_visCPP.hpp @ 6862:8a5ea0a9ccc4
7127708: G1: change task num types from int to uint in concurrent mark
Summary: Change the type of various task num fields, parameters etc to unsigned and rename them to be more consistent with the other collectors. Code changes were also reviewed by Vitaly Davidovich.
Reviewed-by: johnc
Contributed-by: Kaushik Srenevasan <kaushik@twitter.com>
| author | johnc |
|---|---|
| date | Sat, 06 Oct 2012 01:17:44 -0700 |
| parents | 40b4aaf010e4 |
| children | b9a9ed0f8eeb |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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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> | |
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44 # include <limits.h> |
| 0 | 45 // Need this on windows to get the math constants (e.g., M_PI). |
| 46 #define _USE_MATH_DEFINES | |
| 47 # include <math.h> | |
| 48 | |
| 49 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures | |
| 50 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in | |
| 51 // system header files. On 32-bit architectures, there is no problem. | |
| 52 // On 64-bit architectures, defining NULL as a 32-bit constant can cause | |
| 53 // problems with varargs functions: C++ integral promotion rules say for | |
| 54 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a | |
| 55 // varargs function it will remain 32-bits. Depending on the calling | |
| 56 // convention of the machine, if the argument is passed on the stack then | |
| 57 // only 32-bits of the "NULL" pointer may be initialized to zero. The | |
| 58 // other 32-bits will be garbage. If the varargs function is expecting a | |
| 59 // pointer when it extracts the argument, then we may have a problem. | |
| 60 // | |
| 61 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. | |
| 62 #ifdef _LP64 | |
| 63 #undef NULL | |
| 64 // 64-bit Windows uses a P64 data model (not LP64, although we define _LP64) | |
| 65 // Since longs are 32-bit we cannot use 0L here. Use the Visual C++ specific | |
| 66 // 64-bit integer-suffix (i64) instead. | |
| 67 #define NULL 0i64 | |
| 68 #else | |
| 69 #ifndef NULL | |
| 70 #define NULL 0 | |
| 71 #endif | |
| 72 #endif | |
| 73 | |
| 74 // NULL vs NULL_WORD: | |
| 75 // On Linux NULL is defined as a special type '__null'. Assigning __null to | |
| 76 // integer variable will cause gcc warning. Use NULL_WORD in places where a | |
| 77 // pointer is stored as integer value. | |
| 78 #define NULL_WORD NULL | |
| 79 | |
| 80 // Compiler-specific primitive types | |
| 81 typedef unsigned __int8 uint8_t; | |
| 82 typedef unsigned __int16 uint16_t; | |
| 83 typedef unsigned __int32 uint32_t; | |
| 84 typedef unsigned __int64 uint64_t; | |
| 85 | |
| 86 #ifdef _WIN64 | |
| 87 typedef unsigned __int64 uintptr_t; | |
| 88 #else | |
| 89 typedef unsigned int uintptr_t; | |
| 90 #endif | |
| 91 typedef signed __int8 int8_t; | |
| 92 typedef signed __int16 int16_t; | |
| 93 typedef signed __int32 int32_t; | |
| 94 typedef signed __int64 int64_t; | |
| 95 #ifdef _WIN64 | |
| 96 typedef signed __int64 intptr_t; | |
| 97 typedef signed __int64 ssize_t; | |
| 98 #else | |
| 99 typedef signed int intptr_t; | |
| 100 typedef signed int ssize_t; | |
| 101 #endif | |
| 102 | |
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103 #ifndef UINTPTR_MAX |
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104 #ifdef _WIN64 |
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105 #define UINTPTR_MAX _UI64_MAX |
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106 #else |
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107 #define UINTPTR_MAX _UI32_MAX |
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108 #endif |
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109 #endif |
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110 |
| 0 | 111 //---------------------------------------------------------------------------------------------------- |
| 112 // Additional Java basic types | |
| 113 | |
| 114 typedef unsigned char jubyte; | |
| 115 typedef unsigned short jushort; | |
| 116 typedef unsigned int juint; | |
| 117 typedef unsigned __int64 julong; | |
| 118 | |
| 119 //---------------------------------------------------------------------------------------------------- | |
| 120 // Special (possibly not-portable) casts | |
| 121 // Cast floats into same-size integers and vice-versa w/o changing bit-pattern | |
| 122 | |
| 123 inline jint jint_cast (jfloat x) { return *(jint* )&x; } | |
| 124 inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } | |
| 125 | |
| 126 inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } | |
| 127 inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } | |
| 128 | |
| 129 | |
| 130 //---------------------------------------------------------------------------------------------------- | |
| 131 // Non-standard stdlib-like stuff: | |
| 132 inline int strcasecmp(const char *s1, const char *s2) { return _stricmp(s1,s2); } | |
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133 inline int strncasecmp(const char *s1, const char *s2, size_t n) { |
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134 return _strnicmp(s1,s2,n); |
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135 } |
| 0 | 136 |
| 137 | |
| 138 //---------------------------------------------------------------------------------------------------- | |
| 139 // Debugging | |
| 140 | |
| 141 #if _WIN64 | |
| 142 extern "C" void breakpoint(); | |
| 143 #define BREAKPOINT ::breakpoint() | |
| 144 #else | |
| 145 #define BREAKPOINT __asm { int 3 } | |
| 146 #endif | |
| 147 | |
| 148 //---------------------------------------------------------------------------------------------------- | |
| 149 // Checking for nanness | |
| 150 | |
| 151 inline int g_isnan(jfloat f) { return _isnan(f); } | |
| 152 inline int g_isnan(jdouble f) { return _isnan(f); } | |
| 153 | |
| 154 //---------------------------------------------------------------------------------------------------- | |
| 155 // Checking for finiteness | |
| 156 | |
| 157 inline int g_isfinite(jfloat f) { return _finite(f); } | |
| 158 inline int g_isfinite(jdouble f) { return _finite(f); } | |
| 159 | |
| 160 //---------------------------------------------------------------------------------------------------- | |
| 161 // Constant for jlong (specifying an long long constant is C++ compiler specific) | |
| 162 | |
| 163 // Build a 64bit integer constant on with Visual C++ | |
| 164 #define CONST64(x) (x ## i64) | |
| 165 #define UCONST64(x) ((uint64_t)CONST64(x)) | |
| 166 | |
| 167 const jlong min_jlong = CONST64(0x8000000000000000); | |
| 168 const jlong max_jlong = CONST64(0x7fffffffffffffff); | |
| 169 | |
| 170 //---------------------------------------------------------------------------------------------------- | |
| 171 // Miscellaneous | |
| 172 | |
| 173 // Visual Studio 2005 deprecates POSIX names - use ISO C++ names instead | |
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174 #if _MSC_VER >= 1400 |
| 0 | 175 #define open _open |
| 176 #define close _close | |
| 177 #define read _read | |
| 178 #define write _write | |
| 179 #define lseek _lseek | |
| 180 #define unlink _unlink | |
| 181 #define strdup _strdup | |
| 182 #endif | |
| 183 | |
| 184 #pragma warning( disable : 4100 ) // unreferenced formal parameter | |
| 185 #pragma warning( disable : 4127 ) // conditional expression is constant | |
| 186 #pragma warning( disable : 4514 ) // unreferenced inline function has been removed | |
| 187 #pragma warning( disable : 4244 ) // possible loss of data | |
| 188 #pragma warning( disable : 4512 ) // assignment operator could not be generated | |
| 189 #pragma warning( disable : 4201 ) // nonstandard extension used : nameless struct/union (needed in windows.h) | |
| 190 #pragma warning( disable : 4511 ) // copy constructor could not be generated | |
| 191 #pragma warning( disable : 4291 ) // no matching operator delete found; memory will not be freed if initialization thows an exception | |
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192 #if _MSC_VER >= 1400 |
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193 #pragma warning( disable : 4996 ) // unsafe string functions. Same as define _CRT_SECURE_NO_WARNINGS/_CRT_SECURE_NO_DEPRICATE |
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194 #endif |
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195 |
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196 inline int vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) { |
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197 // If number of characters written == count, Windows doesn't write a |
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198 // terminating NULL, so we do it ourselves. |
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199 int ret = _vsnprintf(buf, count, fmt, argptr); |
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200 if (count > 0) buf[count-1] = '\0'; |
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201 return ret; |
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202 } |
| 0 | 203 |
| 204 // Portability macros | |
| 205 #define PRAGMA_INTERFACE | |
| 206 #define PRAGMA_IMPLEMENTATION | |
| 207 #define PRAGMA_IMPLEMENTATION_(arg) | |
| 208 #define VALUE_OBJ_CLASS_SPEC : public _ValueObj | |
| 209 | |
| 210 // Formatting. | |
| 211 #define FORMAT64_MODIFIER "I64" | |
| 212 | |
| 3960 | 213 // Visual Studio doesn't provide inttypes.h so provide appropriate definitions here. |
| 214 // The 32 bits ones might need I32 but seem to work ok without it. | |
| 215 #define PRId32 "d" | |
| 216 #define PRIu32 "u" | |
| 217 #define PRIx32 "x" | |
| 218 | |
| 219 #define PRId64 "I64d" | |
| 220 #define PRIu64 "I64u" | |
| 221 #define PRIx64 "I64x" | |
| 222 | |
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223 #ifdef _LP64 |
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224 #define PRIdPTR "I64d" |
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225 #define PRIuPTR "I64u" |
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226 #define PRIxPTR "I64x" |
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227 #else |
| 3960 | 228 #define PRIdPTR "d" |
| 229 #define PRIuPTR "u" | |
| 230 #define PRIxPTR "x" | |
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231 #endif |
| 3960 | 232 |
| 0 | 233 #define offset_of(klass,field) offsetof(klass,field) |
| 1972 | 234 |
| 235 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP |