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