1 /* 2 * Copyright (c) 1997, 2015, 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_SPARCWORKS_HPP 26 #define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_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 35 # include <ctype.h> 36 #define __USE_LEGACY_PROTOTYPES__ 37 # include <dirent.h> 38 #undef __USE_LEGACY_PROTOTYPES__ 39 # include <string.h> 40 # include <strings.h> // for bsd'isms 41 # include <stdarg.h> 42 # include <stddef.h> // for offsetof 43 # include <stdio.h> 44 # include <stdlib.h> 45 # include <wchar.h> 46 # include <stdarg.h> 47 #ifdef SOLARIS 48 # include <ieeefp.h> 49 #endif 50 # include <math.h> 51 #ifdef LINUX 52 #ifndef FP_PZERO 53 // Linux doesn't have positive/negative zero 54 #define FP_PZERO FP_ZERO 55 #endif 56 #ifndef fpclass 57 #define fpclass fpclassify 58 #endif 59 #endif 60 # include <time.h> 61 # include <fcntl.h> 62 # include <dlfcn.h> 63 # include <pthread.h> 64 #ifdef SOLARIS 65 # include <thread.h> 66 #endif 67 # include <limits.h> 68 # include <errno.h> 69 #ifdef SOLARIS 70 # include <sys/trap.h> 71 # include <sys/regset.h> 72 # include <sys/procset.h> 73 # include <ucontext.h> 74 # include <setjmp.h> 75 #endif 76 # ifdef SOLARIS_MUTATOR_LIBTHREAD 77 # include <sys/procfs.h> 78 # endif 79 80 #include <inttypes.h> 81 82 // Solaris 8 doesn't provide definitions of these 83 #ifdef SOLARIS 84 #ifndef PRIdPTR 85 #if defined(_LP64) 86 #define PRIdPTR "ld" 87 #define PRIuPTR "lu" 88 #define PRIxPTR "lx" 89 #else 90 #define PRIdPTR "d" 91 #define PRIuPTR "u" 92 #define PRIxPTR "x" 93 #endif 94 #endif 95 #endif 96 97 #ifdef LINUX 98 # include <signal.h> 99 # include <ucontext.h> 100 # include <sys/time.h> 101 #endif 102 103 104 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures 105 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in 106 // system header files. On 32-bit architectures, there is no problem. 107 // On 64-bit architectures, defining NULL as a 32-bit constant can cause 108 // problems with varargs functions: C++ integral promotion rules say for 109 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a 110 // varargs function it will remain 32-bits. Depending on the calling 111 // convention of the machine, if the argument is passed on the stack then 112 // only 32-bits of the "NULL" pointer may be initialized to zero. The 113 // other 32-bits will be garbage. If the varargs function is expecting a 114 // pointer when it extracts the argument, then we have a problem. 115 // 116 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. 117 // 118 // Note: this fix doesn't work well on Linux because NULL will be overwritten 119 // whenever a system header file is included. Linux handles NULL correctly 120 // through a special type '__null'. 121 #ifdef SOLARIS 122 #ifdef _LP64 123 #undef NULL 124 #define NULL 0L 125 #else 126 #ifndef NULL 127 #define NULL 0 128 #endif 129 #endif 130 #endif 131 132 // NULL vs NULL_WORD: 133 // On Linux NULL is defined as a special type '__null'. Assigning __null to 134 // integer variable will cause gcc warning. Use NULL_WORD in places where a 135 // pointer is stored as integer value. On some platforms, sizeof(intptr_t) > 136 // sizeof(void*), so here we want something which is integer type, but has the 137 // same size as a pointer. 138 #ifdef LINUX 139 #ifdef _LP64 140 #define NULL_WORD 0L 141 #else 142 // Cast 0 to intptr_t rather than int32_t since they are not the same type 143 // on some platforms. 144 #define NULL_WORD ((intptr_t)0) 145 #endif 146 #else 147 #define NULL_WORD NULL 148 #endif 149 150 #ifndef LINUX 151 // Compiler-specific primitive types 152 typedef unsigned short uint16_t; 153 #ifndef _UINT32_T 154 #define _UINT32_T 155 typedef unsigned int uint32_t; 156 #endif 157 #if !defined(_SYS_INT_TYPES_H) 158 #ifndef _UINT64_T 159 #define _UINT64_T 160 typedef unsigned long long uint64_t; 161 #endif 162 // %%%% how to access definition of intptr_t portably in 5.5 onward? 163 typedef int intptr_t; 164 typedef unsigned int uintptr_t; 165 // If this gets an error, figure out a symbol XXX that implies the 166 // prior definition of intptr_t, and add "&& !defined(XXX)" above. 167 #endif 168 #endif 169 170 // On solaris 8, UINTPTR_MAX is defined as empty. 171 // Everywhere else it's an actual value. 172 #if UINTPTR_MAX - 1 == -1 173 #undef UINTPTR_MAX 174 #ifdef _LP64 175 #define UINTPTR_MAX UINT64_MAX 176 #else 177 #define UINTPTR_MAX UINT32_MAX 178 #endif /* ifdef _LP64 */ 179 #endif 180 181 // Additional Java basic types 182 183 typedef unsigned char jubyte; 184 typedef unsigned short jushort; 185 typedef unsigned int juint; 186 typedef unsigned long long julong; 187 188 189 //---------------------------------------------------------------------------------------------------- 190 // Constant for jlong (specifying an long long constant is C++ compiler specific) 191 192 // Build a 64bit integer constant 193 #define CONST64(x) (x ## LL) 194 #define UCONST64(x) (x ## ULL) 195 196 const jlong min_jlong = CONST64(0x8000000000000000); 197 const jlong max_jlong = CONST64(0x7fffffffffffffff); 198 199 #ifdef SOLARIS 200 //---------------------------------------------------------------------------------------------------- 201 // ANSI C++ fixes 202 // NOTE:In the ANSI committee's continuing attempt to make each version 203 // of C++ incompatible with the previous version, you can no longer cast 204 // pointers to functions without specifying linkage unless you want to get 205 // warnings. 206 // 207 // This also means that pointers to functions can no longer be "hidden" 208 // in opaque types like void * because at the invokation point warnings 209 // will be generated. While this makes perfect sense from a type safety 210 // point of view it causes a lot of warnings on old code using C header 211 // files. Here are some typedefs to make the job of silencing warnings 212 // a bit easier. 213 // 214 // The final kick in the teeth is that you can only have extern "C" linkage 215 // specified at file scope. So these typedefs are here rather than in the 216 // .hpp for the class (os:Solaris usually) that needs them. 217 218 extern "C" { 219 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); 220 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); 221 typedef int (*int_fnP_thread_t_i)(thread_t, int); 222 typedef int (*int_fnP_thread_t)(thread_t); 223 224 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); 225 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); 226 227 // typedef for missing API in libc 228 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); 229 typedef int (*int_fnP_mutex_tP)(mutex_t *); 230 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); 231 typedef int (*int_fnP_cond_tP)(cond_t *cv); 232 }; 233 #endif 234 235 //---------------------------------------------------------------------------------------------------- 236 // Debugging 237 238 #define DEBUG_EXCEPTION ::abort(); 239 240 extern "C" void breakpoint(); 241 #define BREAKPOINT ::breakpoint() 242 243 // checking for nanness 244 #ifdef SOLARIS 245 #ifdef SPARC 246 inline int g_isnan(float f) { return isnanf(f); } 247 #else 248 // isnanf() broken on Intel Solaris use isnand() 249 inline int g_isnan(float f) { return isnand(f); } 250 #endif 251 252 inline int g_isnan(double f) { return isnand(f); } 253 #elif LINUX 254 inline int g_isnan(float f) { return isnanf(f); } 255 inline int g_isnan(double f) { return isnan(f); } 256 #else 257 #error "missing platform-specific definition here" 258 #endif 259 260 // Checking for finiteness 261 262 inline int g_isfinite(jfloat f) { return finite(f); } 263 inline int g_isfinite(jdouble f) { return finite(f); } 264 265 266 // Wide characters 267 268 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } 269 270 // Portability macros 271 #define PRAGMA_INTERFACE 272 #define PRAGMA_IMPLEMENTATION 273 #define PRAGMA_IMPLEMENTATION_(arg) 274 #define VALUE_OBJ_CLASS_SPEC : public _ValueObj 275 276 // Formatting. 277 #ifdef _LP64 278 #define FORMAT64_MODIFIER "l" 279 #else // !_LP64 280 #define FORMAT64_MODIFIER "ll" 281 #endif // _LP64 282 283 #define offset_of(klass,field) offsetof(klass,field) 284 285 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP