Mercurial > hg > truffle
annotate src/share/vm/utilities/globalDefinitions_sparcWorks.hpp @ 3763:e66f38dd58a9
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author | ysr |
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date | Wed, 08 Jun 2011 08:39:53 -0700 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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 |
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151 // On solaris 8, UINTPTR_MAX is defined as empty. |
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152 // Everywhere else it's an actual value. |
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153 #if UINTPTR_MAX - 1 == -1 |
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154 #undef UINTPTR_MAX |
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155 #ifdef _LP64 |
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156 #define UINTPTR_MAX UINT64_MAX |
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157 #else |
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158 #define UINTPTR_MAX UINT32_MAX |
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159 #endif /* ifdef _LP64 */ |
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160 #endif |
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161 |
0 | 162 // Additional Java basic types |
163 | |
164 typedef unsigned char jubyte; | |
165 typedef unsigned short jushort; | |
166 typedef unsigned int juint; | |
167 typedef unsigned long long julong; | |
168 | |
169 //---------------------------------------------------------------------------------------------------- | |
170 // Special (possibly not-portable) casts | |
171 // Cast floats into same-size integers and vice-versa w/o changing bit-pattern | |
172 | |
173 inline jint jint_cast (jfloat x) { return *(jint* )&x; } | |
174 inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } | |
175 | |
176 inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } | |
177 inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } | |
178 | |
179 //---------------------------------------------------------------------------------------------------- | |
180 // Constant for jlong (specifying an long long constant is C++ compiler specific) | |
181 | |
182 // Build a 64bit integer constant | |
183 #define CONST64(x) (x ## LL) | |
184 #define UCONST64(x) (x ## ULL) | |
185 | |
186 const jlong min_jlong = CONST64(0x8000000000000000); | |
187 const jlong max_jlong = CONST64(0x7fffffffffffffff); | |
188 | |
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189 #ifdef SOLARIS |
0 | 190 //---------------------------------------------------------------------------------------------------- |
191 // ANSI C++ fixes | |
192 // NOTE:In the ANSI committee's continuing attempt to make each version | |
193 // of C++ incompatible with the previous version, you can no longer cast | |
194 // pointers to functions without specifying linkage unless you want to get | |
195 // warnings. | |
196 // | |
197 // This also means that pointers to functions can no longer be "hidden" | |
198 // in opaque types like void * because at the invokation point warnings | |
199 // will be generated. While this makes perfect sense from a type safety | |
200 // point of view it causes a lot of warnings on old code using C header | |
201 // files. Here are some typedefs to make the job of silencing warnings | |
202 // a bit easier. | |
203 // | |
204 // The final kick in the teeth is that you can only have extern "C" linkage | |
205 // specified at file scope. So these typedefs are here rather than in the | |
206 // .hpp for the class (os:Solaris usually) that needs them. | |
207 | |
208 extern "C" { | |
209 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); | |
210 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); | |
211 typedef int (*int_fnP_thread_t_i)(thread_t, int); | |
212 typedef int (*int_fnP_thread_t)(thread_t); | |
213 | |
214 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); | |
215 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); | |
216 | |
217 // typedef for missing API in libc | |
218 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); | |
219 typedef int (*int_fnP_mutex_tP)(mutex_t *); | |
220 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); | |
221 typedef int (*int_fnP_cond_tP)(cond_t *cv); | |
222 }; | |
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223 #endif |
0 | 224 |
225 //---------------------------------------------------------------------------------------------------- | |
226 // Debugging | |
227 | |
228 #define DEBUG_EXCEPTION ::abort(); | |
229 | |
230 extern "C" void breakpoint(); | |
231 #define BREAKPOINT ::breakpoint() | |
232 | |
233 // checking for nanness | |
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234 #ifdef SOLARIS |
0 | 235 #ifdef SPARC |
236 inline int g_isnan(float f) { return isnanf(f); } | |
237 #else | |
238 // isnanf() broken on Intel Solaris use isnand() | |
239 inline int g_isnan(float f) { return isnand(f); } | |
240 #endif | |
241 | |
242 inline int g_isnan(double f) { return isnand(f); } | |
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243 #elif LINUX |
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244 inline int g_isnan(float f) { return isnanf(f); } |
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245 inline int g_isnan(double f) { return isnan(f); } |
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246 #else |
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247 #error "missing platform-specific definition here" |
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248 #endif |
0 | 249 |
250 // Checking for finiteness | |
251 | |
252 inline int g_isfinite(jfloat f) { return finite(f); } | |
253 inline int g_isfinite(jdouble f) { return finite(f); } | |
254 | |
255 | |
256 // Wide characters | |
257 | |
258 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } | |
259 | |
260 | |
261 // Misc | |
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262 // NOTE: This one leads to an infinite recursion on Linux |
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263 #ifndef LINUX |
0 | 264 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr); |
265 #define vsnprintf local_vsnprintf | |
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266 #endif |
0 | 267 |
268 // Portability macros | |
269 #define PRAGMA_INTERFACE | |
270 #define PRAGMA_IMPLEMENTATION | |
271 #define PRAGMA_IMPLEMENTATION_(arg) | |
272 #define VALUE_OBJ_CLASS_SPEC : public _ValueObj | |
273 | |
274 // Formatting. | |
275 #ifdef _LP64 | |
276 #define FORMAT64_MODIFIER "l" | |
277 #else // !_LP64 | |
278 #define FORMAT64_MODIFIER "ll" | |
279 #endif // _LP64 | |
280 | |
281 #define offset_of(klass,field) offsetof(klass,field) | |
1972 | 282 |
283 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP |