1 /* 2 * Copyright (c) 1997, 2019, 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_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP 26 #define SHARE_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP 27 28 #include "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 <stdint.h> 39 # include <stddef.h>// for offsetof 40 # include <io.h> // for stream.cpp 41 # include <float.h> // for _isnan 42 # include <stdio.h> // for va_list 43 # include <time.h> 44 # include <fcntl.h> 45 # include <limits.h> 46 # include <inttypes.h> 47 // Need this on windows to get the math constants (e.g., M_PI). 48 #define _USE_MATH_DEFINES 49 # include <math.h> 50 51 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures 52 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in 53 // system header files. On 32-bit architectures, there is no problem. 54 // On 64-bit architectures, defining NULL as a 32-bit constant can cause 55 // problems with varargs functions: C++ integral promotion rules say for 56 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a 57 // varargs function it will remain 32-bits. Depending on the calling 58 // convention of the machine, if the argument is passed on the stack then 59 // only 32-bits of the "NULL" pointer may be initialized to zero. The 60 // other 32-bits will be garbage. If the varargs function is expecting a 61 // pointer when it extracts the argument, then we may have a problem. 62 // 63 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. 64 #ifdef _LP64 65 #undef NULL 66 // 64-bit Windows uses a P64 data model (not LP64, although we define _LP64) 67 // Since longs are 32-bit we cannot use 0L here. Use the Visual C++ specific 68 // 64-bit integer-suffix (LL) instead. 69 #define NULL 0LL 70 #else 71 #ifndef NULL 72 #define NULL 0 73 #endif 74 #endif 75 76 // NULL vs NULL_WORD: 77 // On Linux NULL is defined as a special type '__null'. Assigning __null to 78 // integer variable will cause gcc warning. Use NULL_WORD in places where a 79 // pointer is stored as integer value. 80 #define NULL_WORD NULL 81 82 #ifdef _WIN64 83 typedef int64_t ssize_t; 84 #else 85 typedef int32_t ssize_t; 86 #endif 87 88 // Additional Java basic types 89 90 typedef uint8_t jubyte; 91 typedef uint16_t jushort; 92 typedef uint32_t juint; 93 typedef uint64_t julong; 94 95 // Non-standard stdlib-like stuff: 96 inline int strcasecmp(const char *s1, const char *s2) { return _stricmp(s1,s2); } 97 inline int strncasecmp(const char *s1, const char *s2, size_t n) { 98 return _strnicmp(s1,s2,n); 99 } 100 101 // Checking for nanness 102 103 inline int g_isnan(jfloat f) { return _isnan(f); } 104 inline int g_isnan(jdouble f) { return _isnan(f); } 105 106 // Checking for finiteness 107 108 inline int g_isfinite(jfloat f) { return _finite(f); } 109 inline int g_isfinite(jdouble f) { return _finite(f); } 110 111 // Miscellaneous 112 113 // Visual Studio 2005 deprecates POSIX names - use ISO C++ names instead 114 #define open _open 115 #define close _close 116 #define read _read 117 #define write _write 118 #define lseek _lseek 119 #define unlink _unlink 120 #define strdup _strdup 121 122 // Formatting. 123 #define FORMAT64_MODIFIER "I64" 124 125 #define offset_of(klass,field) offsetof(klass,field) 126 127 #define THREAD_LOCAL __declspec(thread) 128 129 // Inlining support 130 // MSVC has '__declspec(noinline)' but according to the official documentation 131 // it only applies to member functions. There are reports though which pretend 132 // that it also works for freestanding functions. 133 #define NOINLINE __declspec(noinline) 134 #define ALWAYSINLINE __forceinline 135 136 // Alignment 137 #define ATTRIBUTE_ALIGNED(x) __declspec(align(x)) 138 139 #ifdef _M_ARM64 140 #define USE_VECTORED_EXCEPTION_HANDLING 141 #endif 142 143 #endif // SHARE_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP