Mercurial > hg > truffle
annotate src/share/vm/utilities/globalDefinitions_gcc.hpp @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | f95d63e2154a |
| children | 4a9604cd7c5f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1998, 2010, 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_GCC_HPP |
| 26 #define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_GCC_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 <stddef.h> | |
| 38 #include <stdio.h> | |
| 39 #include <stdlib.h> | |
| 40 #include <wchar.h> | |
| 41 | |
| 42 #ifdef SOLARIS | |
| 43 #include <ieeefp.h> | |
| 44 #endif // SOLARIS | |
| 45 | |
| 46 #include <math.h> | |
| 47 #ifndef FP_PZERO | |
| 48 // Linux doesn't have positive/negative zero | |
| 49 #define FP_PZERO FP_ZERO | |
| 50 #endif | |
| 51 #if (!defined fpclass) && ((!defined SPARC) || (!defined SOLARIS)) | |
| 52 #define fpclass fpclassify | |
| 53 #endif | |
| 54 | |
| 55 #include <time.h> | |
| 56 #include <fcntl.h> | |
| 57 #include <dlfcn.h> | |
| 58 #include <pthread.h> | |
| 59 | |
| 60 #ifdef SOLARIS | |
| 61 #include <thread.h> | |
| 62 #endif // SOLARIS | |
| 63 | |
| 64 #include <limits.h> | |
| 65 #include <errno.h> | |
| 66 | |
| 67 #ifdef SOLARIS | |
| 68 #include <sys/trap.h> | |
| 69 #include <sys/regset.h> | |
| 70 #include <sys/procset.h> | |
| 71 #include <ucontext.h> | |
| 72 #include <setjmp.h> | |
| 73 #endif // SOLARIS | |
| 74 | |
| 75 # ifdef SOLARIS_MUTATOR_LIBTHREAD | |
| 76 # include <sys/procfs.h> | |
| 77 # endif | |
| 78 | |
| 79 #ifdef LINUX | |
| 80 #include <inttypes.h> | |
| 81 #include <signal.h> | |
| 82 #include <ucontext.h> | |
| 83 #include <sys/time.h> | |
| 84 #endif // LINUX | |
| 85 | |
| 86 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures | |
| 87 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in | |
| 88 // system header files. On 32-bit architectures, there is no problem. | |
| 89 // On 64-bit architectures, defining NULL as a 32-bit constant can cause | |
| 90 // problems with varargs functions: C++ integral promotion rules say for | |
| 91 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a | |
| 92 // varargs function it will remain 32-bits. Depending on the calling | |
| 93 // convention of the machine, if the argument is passed on the stack then | |
| 94 // only 32-bits of the "NULL" pointer may be initialized to zero. The | |
| 95 // other 32-bits will be garbage. If the varargs function is expecting a | |
| 96 // pointer when it extracts the argument, then we have a problem. | |
| 97 // | |
| 98 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. | |
| 99 // | |
| 100 // Note: this fix doesn't work well on Linux because NULL will be overwritten | |
| 101 // whenever a system header file is included. Linux handles NULL correctly | |
| 102 // through a special type '__null'. | |
| 103 #ifdef SOLARIS | |
| 104 #ifdef _LP64 | |
| 105 #undef NULL | |
| 106 #define NULL 0L | |
| 107 #else | |
| 108 #ifndef NULL | |
| 109 #define NULL 0 | |
| 110 #endif | |
| 111 #endif | |
| 112 #endif | |
| 113 | |
| 114 // NULL vs NULL_WORD: | |
| 115 // On Linux NULL is defined as a special type '__null'. Assigning __null to | |
| 116 // integer variable will cause gcc warning. Use NULL_WORD in places where a | |
| 117 // pointer is stored as integer value. On some platforms, sizeof(intptr_t) > | |
| 118 // sizeof(void*), so here we want something which is integer type, but has the | |
| 119 // same size as a pointer. | |
| 120 #ifdef LINUX | |
| 121 #ifdef _LP64 | |
| 122 #define NULL_WORD 0L | |
| 123 #else | |
|
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124 // Cast 0 to intptr_t rather than int32_t since they are not the same type |
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125 // on platforms such as Mac OS X. |
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126 #define NULL_WORD ((intptr_t)0) |
| 0 | 127 #endif |
| 128 #else | |
| 129 #define NULL_WORD NULL | |
| 130 #endif | |
| 131 | |
| 132 #ifndef LINUX | |
| 133 // Compiler-specific primitive types | |
| 134 typedef unsigned short uint16_t; | |
| 135 #ifndef _UINT32_T | |
| 136 #define _UINT32_T | |
| 137 typedef unsigned int uint32_t; | |
| 138 #endif // _UINT32_T | |
| 139 | |
| 140 #if !defined(_SYS_INT_TYPES_H) | |
| 141 #ifndef _UINT64_T | |
| 142 #define _UINT64_T | |
| 143 typedef unsigned long long uint64_t; | |
| 144 #endif // _UINT64_T | |
| 145 // %%%% how to access definition of intptr_t portably in 5.5 onward? | |
| 146 typedef int intptr_t; | |
| 147 typedef unsigned int uintptr_t; | |
| 148 // If this gets an error, figure out a symbol XXX that implies the | |
| 149 // prior definition of intptr_t, and add "&& !defined(XXX)" above. | |
| 150 #endif // _SYS_INT_TYPES_H | |
| 151 | |
| 152 #endif // !LINUX | |
| 153 | |
| 154 // Additional Java basic types | |
| 155 | |
| 156 typedef uint8_t jubyte; | |
| 157 typedef uint16_t jushort; | |
| 158 typedef uint32_t juint; | |
| 159 typedef uint64_t julong; | |
| 160 | |
| 161 //---------------------------------------------------------------------------------------------------- | |
| 162 // Special (possibly not-portable) casts | |
| 163 // Cast floats into same-size integers and vice-versa w/o changing bit-pattern | |
| 164 // %%%%%% These seem like standard C++ to me--how about factoring them out? - Ungar | |
| 165 | |
| 166 inline jint jint_cast (jfloat x) { return *(jint* )&x; } | |
| 167 inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } | |
| 168 | |
| 169 inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } | |
| 170 inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } | |
| 171 | |
| 172 //---------------------------------------------------------------------------------------------------- | |
| 173 // Constant for jlong (specifying an long long canstant is C++ compiler specific) | |
| 174 | |
| 175 // Build a 64bit integer constant | |
| 176 #define CONST64(x) (x ## LL) | |
| 177 #define UCONST64(x) (x ## ULL) | |
| 178 | |
| 179 const jlong min_jlong = CONST64(0x8000000000000000); | |
| 180 const jlong max_jlong = CONST64(0x7fffffffffffffff); | |
| 181 | |
| 182 | |
| 183 #ifdef SOLARIS | |
| 184 //---------------------------------------------------------------------------------------------------- | |
| 185 // ANSI C++ fixes | |
| 186 // NOTE:In the ANSI committee's continuing attempt to make each version | |
| 187 // of C++ incompatible with the previous version, you can no longer cast | |
| 188 // pointers to functions without specifying linkage unless you want to get | |
| 189 // warnings. | |
| 190 // | |
| 191 // This also means that pointers to functions can no longer be "hidden" | |
| 192 // in opaque types like void * because at the invokation point warnings | |
| 193 // will be generated. While this makes perfect sense from a type safety | |
| 194 // point of view it causes a lot of warnings on old code using C header | |
| 195 // files. Here are some typedefs to make the job of silencing warnings | |
| 196 // a bit easier. | |
| 197 // | |
| 198 // The final kick in the teeth is that you can only have extern "C" linkage | |
| 199 // specified at file scope. So these typedefs are here rather than in the | |
| 200 // .hpp for the class (os:Solaris usually) that needs them. | |
| 201 | |
| 202 extern "C" { | |
| 203 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); | |
| 204 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); | |
| 205 typedef int (*int_fnP_thread_t_i)(thread_t, int); | |
| 206 typedef int (*int_fnP_thread_t)(thread_t); | |
| 207 | |
| 208 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); | |
| 209 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); | |
| 210 | |
| 211 // typedef for missing API in libc | |
| 212 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); | |
| 213 typedef int (*int_fnP_mutex_tP)(mutex_t *); | |
| 214 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); | |
| 215 typedef int (*int_fnP_cond_tP)(cond_t *cv); | |
| 216 }; | |
| 217 #endif // SOLARIS | |
| 218 | |
| 219 //---------------------------------------------------------------------------------------------------- | |
| 220 // Debugging | |
| 221 | |
| 222 #define DEBUG_EXCEPTION ::abort(); | |
| 223 | |
|
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224 #ifdef ARM |
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225 #ifdef SOLARIS |
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226 #define BREAKPOINT __asm__ volatile (".long 0xe1200070") |
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227 #else |
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228 #define BREAKPOINT __asm__ volatile (".long 0xe7f001f0") |
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229 #endif |
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230 #else |
| 0 | 231 extern "C" void breakpoint(); |
| 232 #define BREAKPOINT ::breakpoint() | |
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233 #endif |
| 0 | 234 |
| 235 // checking for nanness | |
| 236 #ifdef SOLARIS | |
| 237 #ifdef SPARC | |
| 238 inline int g_isnan(float f) { return isnanf(f); } | |
| 239 #else | |
| 240 // isnanf() broken on Intel Solaris use isnand() | |
| 241 inline int g_isnan(float f) { return isnand(f); } | |
| 242 #endif | |
| 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 | |
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251 // GCC 4.3 does not allow 0.0/0.0 to produce a NAN value |
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252 #if (__GNUC__ == 4) && (__GNUC_MINOR__ > 2) |
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253 #define CAN_USE_NAN_DEFINE 1 |
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254 #endif |
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255 |
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256 |
| 0 | 257 // Checking for finiteness |
| 258 | |
| 259 inline int g_isfinite(jfloat f) { return finite(f); } | |
| 260 inline int g_isfinite(jdouble f) { return finite(f); } | |
| 261 | |
| 262 | |
| 263 // Wide characters | |
| 264 | |
| 265 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } | |
| 266 | |
| 267 | |
| 268 // Portability macros | |
| 269 #define PRAGMA_INTERFACE #pragma interface | |
| 270 #define PRAGMA_IMPLEMENTATION #pragma implementation | |
| 271 #define VALUE_OBJ_CLASS_SPEC | |
| 272 | |
| 273 #if (__GNUC__ == 2) && (__GNUC_MINOR__ < 95) | |
| 274 #define TEMPLATE_TABLE_BUG | |
| 275 #endif | |
| 276 #if (__GNUC__ == 2) && (__GNUC_MINOR__ >= 96) | |
| 277 #define CONST_SDM_BUG | |
| 278 #endif | |
| 279 | |
| 280 // Formatting. | |
| 281 #ifdef _LP64 | |
| 282 #define FORMAT64_MODIFIER "l" | |
| 283 #else // !_LP64 | |
| 284 #define FORMAT64_MODIFIER "ll" | |
| 285 #endif // _LP64 | |
| 286 | |
| 287 // HACK: gcc warns about applying offsetof() to non-POD object or calculating | |
| 288 // offset directly when base address is NULL. Use 16 to get around the | |
| 289 // warning. gcc-3.4 has an option -Wno-invalid-offsetof to suppress | |
| 290 // this warning. | |
| 291 #define offset_of(klass,field) (size_t)((intx)&(((klass*)16)->field) - 16) | |
| 292 | |
| 293 #ifdef offsetof | |
| 294 # undef offsetof | |
| 295 #endif | |
| 296 #define offsetof(klass,field) offset_of(klass,field) | |
| 1972 | 297 |
| 298 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_GCC_HPP |