Mercurial > hg > truffle
comparison src/share/vm/utilities/globalDefinitions_sparcWorks.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | 485d403e94e1 |
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1 /* | |
2 * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // This file holds compiler-dependent includes, | |
26 // globally used constants & types, class (forward) | |
27 // declarations and a few frequently used utility functions. | |
28 | |
29 | |
30 # include <ctype.h> | |
31 # include <dirent.h> | |
32 # include <string.h> | |
33 # include <strings.h> // for bsd'isms | |
34 # include <stdarg.h> | |
35 # include <stddef.h> // for offsetof | |
36 # include <stdio.h> | |
37 # include <stdlib.h> | |
38 # include <wchar.h> | |
39 # include <stdarg.h> | |
40 # include <ieeefp.h> | |
41 # include <math.h> | |
42 # include <time.h> | |
43 # include <fcntl.h> | |
44 # include <dlfcn.h> | |
45 # include <pthread.h> | |
46 # include <thread.h> | |
47 # include <limits.h> | |
48 # include <errno.h> | |
49 # include <sys/trap.h> | |
50 # include <sys/regset.h> | |
51 # include <sys/procset.h> | |
52 # include <ucontext.h> | |
53 # include <setjmp.h> | |
54 # ifdef SOLARIS_MUTATOR_LIBTHREAD | |
55 # include <sys/procfs.h> | |
56 # endif | |
57 | |
58 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures | |
59 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in | |
60 // system header files. On 32-bit architectures, there is no problem. | |
61 // On 64-bit architectures, defining NULL as a 32-bit constant can cause | |
62 // problems with varargs functions: C++ integral promotion rules say for | |
63 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a | |
64 // varargs function it will remain 32-bits. Depending on the calling | |
65 // convention of the machine, if the argument is passed on the stack then | |
66 // only 32-bits of the "NULL" pointer may be initialized to zero. The | |
67 // other 32-bits will be garbage. If the varargs function is expecting a | |
68 // pointer when it extracts the argument, then we have a problem. | |
69 // | |
70 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. | |
71 #ifdef _LP64 | |
72 #undef NULL | |
73 #define NULL 0L | |
74 #else | |
75 #ifndef NULL | |
76 #define NULL 0 | |
77 #endif | |
78 #endif | |
79 | |
80 // NULL vs NULL_WORD: | |
81 // On Linux NULL is defined as a special type '__null'. Assigning __null to | |
82 // integer variable will cause gcc warning. Use NULL_WORD in places where a | |
83 // pointer is stored as integer value. | |
84 #define NULL_WORD NULL | |
85 | |
86 // Compiler-specific primitive types | |
87 typedef unsigned short uint16_t; | |
88 #ifndef _UINT32_T | |
89 #define _UINT32_T | |
90 typedef unsigned int uint32_t; | |
91 #endif | |
92 #if !defined(_SYS_INT_TYPES_H) | |
93 #ifndef _UINT64_T | |
94 #define _UINT64_T | |
95 typedef unsigned long long uint64_t; | |
96 #endif | |
97 // %%%% how to access definition of intptr_t portably in 5.5 onward? | |
98 typedef int intptr_t; | |
99 typedef unsigned int uintptr_t; | |
100 // If this gets an error, figure out a symbol XXX that implies the | |
101 // prior definition of intptr_t, and add "&& !defined(XXX)" above. | |
102 #endif | |
103 | |
104 // Additional Java basic types | |
105 | |
106 typedef unsigned char jubyte; | |
107 typedef unsigned short jushort; | |
108 typedef unsigned int juint; | |
109 typedef unsigned long long julong; | |
110 | |
111 //---------------------------------------------------------------------------------------------------- | |
112 // Special (possibly not-portable) casts | |
113 // Cast floats into same-size integers and vice-versa w/o changing bit-pattern | |
114 | |
115 inline jint jint_cast (jfloat x) { return *(jint* )&x; } | |
116 inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } | |
117 | |
118 inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } | |
119 inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } | |
120 | |
121 //---------------------------------------------------------------------------------------------------- | |
122 // Constant for jlong (specifying an long long constant is C++ compiler specific) | |
123 | |
124 // Build a 64bit integer constant | |
125 #define CONST64(x) (x ## LL) | |
126 #define UCONST64(x) (x ## ULL) | |
127 | |
128 const jlong min_jlong = CONST64(0x8000000000000000); | |
129 const jlong max_jlong = CONST64(0x7fffffffffffffff); | |
130 | |
131 | |
132 //---------------------------------------------------------------------------------------------------- | |
133 // ANSI C++ fixes | |
134 // NOTE:In the ANSI committee's continuing attempt to make each version | |
135 // of C++ incompatible with the previous version, you can no longer cast | |
136 // pointers to functions without specifying linkage unless you want to get | |
137 // warnings. | |
138 // | |
139 // This also means that pointers to functions can no longer be "hidden" | |
140 // in opaque types like void * because at the invokation point warnings | |
141 // will be generated. While this makes perfect sense from a type safety | |
142 // point of view it causes a lot of warnings on old code using C header | |
143 // files. Here are some typedefs to make the job of silencing warnings | |
144 // a bit easier. | |
145 // | |
146 // The final kick in the teeth is that you can only have extern "C" linkage | |
147 // specified at file scope. So these typedefs are here rather than in the | |
148 // .hpp for the class (os:Solaris usually) that needs them. | |
149 | |
150 extern "C" { | |
151 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); | |
152 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); | |
153 typedef int (*int_fnP_thread_t_i)(thread_t, int); | |
154 typedef int (*int_fnP_thread_t)(thread_t); | |
155 | |
156 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); | |
157 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); | |
158 | |
159 // typedef for missing API in libc | |
160 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); | |
161 typedef int (*int_fnP_mutex_tP)(mutex_t *); | |
162 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); | |
163 typedef int (*int_fnP_cond_tP)(cond_t *cv); | |
164 }; | |
165 | |
166 | |
167 //---------------------------------------------------------------------------------------------------- | |
168 // Debugging | |
169 | |
170 #define DEBUG_EXCEPTION ::abort(); | |
171 | |
172 extern "C" void breakpoint(); | |
173 #define BREAKPOINT ::breakpoint() | |
174 | |
175 // checking for nanness | |
176 | |
177 #ifdef SPARC | |
178 inline int g_isnan(float f) { return isnanf(f); } | |
179 #else | |
180 // isnanf() broken on Intel Solaris use isnand() | |
181 inline int g_isnan(float f) { return isnand(f); } | |
182 #endif | |
183 | |
184 inline int g_isnan(double f) { return isnand(f); } | |
185 | |
186 // Checking for finiteness | |
187 | |
188 inline int g_isfinite(jfloat f) { return finite(f); } | |
189 inline int g_isfinite(jdouble f) { return finite(f); } | |
190 | |
191 | |
192 // Wide characters | |
193 | |
194 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } | |
195 | |
196 | |
197 // Misc | |
198 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr); | |
199 #define vsnprintf local_vsnprintf | |
200 | |
201 | |
202 // Portability macros | |
203 #define PRAGMA_INTERFACE | |
204 #define PRAGMA_IMPLEMENTATION | |
205 #define PRAGMA_IMPLEMENTATION_(arg) | |
206 #define VALUE_OBJ_CLASS_SPEC : public _ValueObj | |
207 | |
208 // Formatting. | |
209 #ifdef _LP64 | |
210 #define FORMAT64_MODIFIER "l" | |
211 #else // !_LP64 | |
212 #define FORMAT64_MODIFIER "ll" | |
213 #endif // _LP64 | |
214 | |
215 #define offset_of(klass,field) offsetof(klass,field) |