Mercurial > hg > truffle
annotate src/share/vm/utilities/globalDefinitions_sparcWorks.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) 1997, 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_SPARCWORKS_HPP |
| 26 #define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_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 | |
| 35 # include <ctype.h> | |
| 36 # include <dirent.h> | |
| 37 # include <string.h> | |
| 38 # include <strings.h> // for bsd'isms | |
| 39 # include <stdarg.h> | |
| 40 # include <stddef.h> // for offsetof | |
| 41 # include <stdio.h> | |
| 42 # include <stdlib.h> | |
| 43 # include <wchar.h> | |
| 44 # include <stdarg.h> | |
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45 #ifdef SOLARIS |
| 0 | 46 # include <ieeefp.h> |
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47 #endif |
| 0 | 48 # include <math.h> |
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49 #ifdef LINUX |
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50 #ifndef FP_PZERO |
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51 // Linux doesn't have positive/negative zero |
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52 #define FP_PZERO FP_ZERO |
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53 #endif |
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54 #ifndef fpclass |
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55 #define fpclass fpclassify |
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56 #endif |
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57 #endif |
| 0 | 58 # include <time.h> |
| 59 # include <fcntl.h> | |
| 60 # include <dlfcn.h> | |
| 61 # include <pthread.h> | |
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62 #ifdef SOLARIS |
| 0 | 63 # include <thread.h> |
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64 #endif |
| 0 | 65 # include <limits.h> |
| 66 # include <errno.h> | |
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67 #ifdef SOLARIS |
| 0 | 68 # include <sys/trap.h> |
| 69 # include <sys/regset.h> | |
| 70 # include <sys/procset.h> | |
| 71 # include <ucontext.h> | |
| 72 # include <setjmp.h> | |
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73 #endif |
| 0 | 74 # ifdef SOLARIS_MUTATOR_LIBTHREAD |
| 75 # include <sys/procfs.h> | |
| 76 # endif | |
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77 #ifdef LINUX |
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78 # include <inttypes.h> |
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79 # include <signal.h> |
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80 # include <ucontext.h> |
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81 # include <sys/time.h> |
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82 #endif |
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83 |
| 0 | 84 |
| 85 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures | |
| 86 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in | |
| 87 // system header files. On 32-bit architectures, there is no problem. | |
| 88 // On 64-bit architectures, defining NULL as a 32-bit constant can cause | |
| 89 // problems with varargs functions: C++ integral promotion rules say for | |
| 90 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a | |
| 91 // varargs function it will remain 32-bits. Depending on the calling | |
| 92 // convention of the machine, if the argument is passed on the stack then | |
| 93 // only 32-bits of the "NULL" pointer may be initialized to zero. The | |
| 94 // other 32-bits will be garbage. If the varargs function is expecting a | |
| 95 // pointer when it extracts the argument, then we have a problem. | |
| 96 // | |
| 97 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. | |
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98 // |
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99 // Note: this fix doesn't work well on Linux because NULL will be overwritten |
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100 // whenever a system header file is included. Linux handles NULL correctly |
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101 // through a special type '__null'. |
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102 #ifdef SOLARIS |
| 0 | 103 #ifdef _LP64 |
| 104 #undef NULL | |
| 105 #define NULL 0L | |
| 106 #else | |
| 107 #ifndef NULL | |
| 108 #define NULL 0 | |
| 109 #endif | |
| 110 #endif | |
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111 #endif |
| 0 | 112 |
| 113 // NULL vs NULL_WORD: | |
| 114 // On Linux NULL is defined as a special type '__null'. Assigning __null to | |
| 115 // integer variable will cause gcc warning. Use NULL_WORD in places where a | |
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116 // pointer is stored as integer value. On some platforms, sizeof(intptr_t) > |
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117 // sizeof(void*), so here we want something which is integer type, but has the |
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118 // same size as a pointer. |
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119 #ifdef LINUX |
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120 #ifdef _LP64 |
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121 #define NULL_WORD 0L |
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122 #else |
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123 // Cast 0 to intptr_t rather than int32_t since they are not the same type |
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124 // on some platforms. |
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125 #define NULL_WORD ((intptr_t)0) |
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126 #endif |
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127 #else |
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128 #define NULL_WORD NULL |
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129 #endif |
| 0 | 130 |
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131 #ifndef LINUX |
| 0 | 132 // Compiler-specific primitive types |
| 133 typedef unsigned short uint16_t; | |
| 134 #ifndef _UINT32_T | |
| 135 #define _UINT32_T | |
| 136 typedef unsigned int uint32_t; | |
| 137 #endif | |
| 138 #if !defined(_SYS_INT_TYPES_H) | |
| 139 #ifndef _UINT64_T | |
| 140 #define _UINT64_T | |
| 141 typedef unsigned long long uint64_t; | |
| 142 #endif | |
| 143 // %%%% how to access definition of intptr_t portably in 5.5 onward? | |
| 144 typedef int intptr_t; | |
| 145 typedef unsigned int uintptr_t; | |
| 146 // If this gets an error, figure out a symbol XXX that implies the | |
| 147 // prior definition of intptr_t, and add "&& !defined(XXX)" above. | |
| 148 #endif | |
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149 #endif |
| 0 | 150 |
| 151 // Additional Java basic types | |
| 152 | |
| 153 typedef unsigned char jubyte; | |
| 154 typedef unsigned short jushort; | |
| 155 typedef unsigned int juint; | |
| 156 typedef unsigned long long julong; | |
| 157 | |
| 158 //---------------------------------------------------------------------------------------------------- | |
| 159 // Special (possibly not-portable) casts | |
| 160 // Cast floats into same-size integers and vice-versa w/o changing bit-pattern | |
| 161 | |
| 162 inline jint jint_cast (jfloat x) { return *(jint* )&x; } | |
| 163 inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } | |
| 164 | |
| 165 inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } | |
| 166 inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } | |
| 167 | |
| 168 //---------------------------------------------------------------------------------------------------- | |
| 169 // Constant for jlong (specifying an long long constant is C++ compiler specific) | |
| 170 | |
| 171 // Build a 64bit integer constant | |
| 172 #define CONST64(x) (x ## LL) | |
| 173 #define UCONST64(x) (x ## ULL) | |
| 174 | |
| 175 const jlong min_jlong = CONST64(0x8000000000000000); | |
| 176 const jlong max_jlong = CONST64(0x7fffffffffffffff); | |
| 177 | |
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178 #ifdef SOLARIS |
| 0 | 179 //---------------------------------------------------------------------------------------------------- |
| 180 // ANSI C++ fixes | |
| 181 // NOTE:In the ANSI committee's continuing attempt to make each version | |
| 182 // of C++ incompatible with the previous version, you can no longer cast | |
| 183 // pointers to functions without specifying linkage unless you want to get | |
| 184 // warnings. | |
| 185 // | |
| 186 // This also means that pointers to functions can no longer be "hidden" | |
| 187 // in opaque types like void * because at the invokation point warnings | |
| 188 // will be generated. While this makes perfect sense from a type safety | |
| 189 // point of view it causes a lot of warnings on old code using C header | |
| 190 // files. Here are some typedefs to make the job of silencing warnings | |
| 191 // a bit easier. | |
| 192 // | |
| 193 // The final kick in the teeth is that you can only have extern "C" linkage | |
| 194 // specified at file scope. So these typedefs are here rather than in the | |
| 195 // .hpp for the class (os:Solaris usually) that needs them. | |
| 196 | |
| 197 extern "C" { | |
| 198 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); | |
| 199 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); | |
| 200 typedef int (*int_fnP_thread_t_i)(thread_t, int); | |
| 201 typedef int (*int_fnP_thread_t)(thread_t); | |
| 202 | |
| 203 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); | |
| 204 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); | |
| 205 | |
| 206 // typedef for missing API in libc | |
| 207 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); | |
| 208 typedef int (*int_fnP_mutex_tP)(mutex_t *); | |
| 209 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); | |
| 210 typedef int (*int_fnP_cond_tP)(cond_t *cv); | |
| 211 }; | |
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212 #endif |
| 0 | 213 |
| 214 //---------------------------------------------------------------------------------------------------- | |
| 215 // Debugging | |
| 216 | |
| 217 #define DEBUG_EXCEPTION ::abort(); | |
| 218 | |
| 219 extern "C" void breakpoint(); | |
| 220 #define BREAKPOINT ::breakpoint() | |
| 221 | |
| 222 // checking for nanness | |
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223 #ifdef SOLARIS |
| 0 | 224 #ifdef SPARC |
| 225 inline int g_isnan(float f) { return isnanf(f); } | |
| 226 #else | |
| 227 // isnanf() broken on Intel Solaris use isnand() | |
| 228 inline int g_isnan(float f) { return isnand(f); } | |
| 229 #endif | |
| 230 | |
| 231 inline int g_isnan(double f) { return isnand(f); } | |
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232 #elif LINUX |
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233 inline int g_isnan(float f) { return isnanf(f); } |
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234 inline int g_isnan(double f) { return isnan(f); } |
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235 #else |
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236 #error "missing platform-specific definition here" |
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237 #endif |
| 0 | 238 |
| 239 // Checking for finiteness | |
| 240 | |
| 241 inline int g_isfinite(jfloat f) { return finite(f); } | |
| 242 inline int g_isfinite(jdouble f) { return finite(f); } | |
| 243 | |
| 244 | |
| 245 // Wide characters | |
| 246 | |
| 247 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } | |
| 248 | |
| 249 | |
| 250 // Misc | |
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251 // NOTE: This one leads to an infinite recursion on Linux |
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252 #ifndef LINUX |
| 0 | 253 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr); |
| 254 #define vsnprintf local_vsnprintf | |
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255 #endif |
| 0 | 256 |
| 257 // Portability macros | |
| 258 #define PRAGMA_INTERFACE | |
| 259 #define PRAGMA_IMPLEMENTATION | |
| 260 #define PRAGMA_IMPLEMENTATION_(arg) | |
| 261 #define VALUE_OBJ_CLASS_SPEC : public _ValueObj | |
| 262 | |
| 263 // Formatting. | |
| 264 #ifdef _LP64 | |
| 265 #define FORMAT64_MODIFIER "l" | |
| 266 #else // !_LP64 | |
| 267 #define FORMAT64_MODIFIER "ll" | |
| 268 #endif // _LP64 | |
| 269 | |
| 270 #define offset_of(klass,field) offsetof(klass,field) | |
| 1972 | 271 |
| 272 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP |