1 /* 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP 26 #define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP 27 28 #include "prims/jni.h" 29 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 # include <limits.h> 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 102 103 #ifndef UINTPTR_MAX 104 #ifdef _WIN64 105 #define UINTPTR_MAX _UI64_MAX 106 #else 107 #define UINTPTR_MAX _UI32_MAX 108 #endif 109 #endif 110 111 //---------------------------------------------------------------------------------------------------- 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 //---------------------------------------------------------------------------------------------------- 121 // Non-standard stdlib-like stuff: 122 inline int strcasecmp(const char *s1, const char *s2) { return _stricmp(s1,s2); } 123 inline int strncasecmp(const char *s1, const char *s2, size_t n) { 124 return _strnicmp(s1,s2,n); 125 } 126 127 128 //---------------------------------------------------------------------------------------------------- 129 // Debugging 130 131 #if _WIN64 132 extern "C" void breakpoint(); 133 #define BREAKPOINT ::breakpoint() 134 #else 135 #define BREAKPOINT __asm { int 3 } 136 #endif 137 138 //---------------------------------------------------------------------------------------------------- 139 // Checking for nanness 140 141 inline int g_isnan(jfloat f) { return _isnan(f); } 142 inline int g_isnan(jdouble f) { return _isnan(f); } 143 144 //---------------------------------------------------------------------------------------------------- 145 // Checking for finiteness 146 147 inline int g_isfinite(jfloat f) { return _finite(f); } 148 inline int g_isfinite(jdouble f) { return _finite(f); } 149 150 //---------------------------------------------------------------------------------------------------- 151 // Constant for jlong (specifying a long long constant is C++ compiler specific) 152 153 // Build a 64bit integer constant with Visual C++ 154 #define CONST64(x) (x ## i64) 155 #define UCONST64(x) (x ## ui64) 156 157 const jlong min_jlong = (jlong)UCONST64(0x8000000000000000); 158 const jlong max_jlong = CONST64(0x7fffffffffffffff); 159 160 //---------------------------------------------------------------------------------------------------- 161 // Miscellaneous 162 163 // Visual Studio 2005 deprecates POSIX names - use ISO C++ names instead 164 #if _MSC_VER >= 1400 165 #define open _open 166 #define close _close 167 #define read _read 168 #define write _write 169 #define lseek _lseek 170 #define unlink _unlink 171 #define strdup _strdup 172 #endif 173 174 // Visual Studio 2013 introduced strtoull(); before, one has to use _strtoui64() instead. 175 #if _MSC_VER < 1800 176 #define strtoull _strtoui64 177 #endif 178 179 180 #pragma warning( disable : 4100 ) // unreferenced formal parameter 181 #pragma warning( disable : 4127 ) // conditional expression is constant 182 #pragma warning( disable : 4514 ) // unreferenced inline function has been removed 183 #pragma warning( disable : 4244 ) // possible loss of data 184 #pragma warning( disable : 4512 ) // assignment operator could not be generated 185 #pragma warning( disable : 4201 ) // nonstandard extension used : nameless struct/union (needed in windows.h) 186 #pragma warning( disable : 4511 ) // copy constructor could not be generated 187 #pragma warning( disable : 4291 ) // no matching operator delete found; memory will not be freed if initialization thows an exception 188 #ifdef CHECK_UNHANDLED_OOPS 189 #pragma warning( disable : 4521 ) // class has multiple copy ctors of a single type 190 #pragma warning( disable : 4522 ) // class has multiple assignment operators of a single type 191 #endif // CHECK_UNHANDLED_OOPS 192 #if _MSC_VER >= 1400 193 #pragma warning( disable : 4996 ) // unsafe string functions. Same as define _CRT_SECURE_NO_WARNINGS/_CRT_SECURE_NO_DEPRICATE 194 #endif 195 196 inline int vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) { 197 // If number of characters written == count, Windows doesn't write a 198 // terminating NULL, so we do it ourselves. 199 int ret = _vsnprintf(buf, count, fmt, argptr); 200 if (count > 0) buf[count-1] = '\0'; 201 return ret; 202 } 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" 212 213 // 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" 222 223 #ifdef _LP64 224 #define PRIdPTR "I64d" 225 #define PRIuPTR "I64u" 226 #define PRIxPTR "I64x" 227 #else 228 #define PRIdPTR "d" 229 #define PRIuPTR "u" 230 #define PRIxPTR "x" 231 #endif 232 233 #define offset_of(klass,field) offsetof(klass,field) 234 235 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP