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 #ifdef LINUX
52 #ifndef FP_PZERO
53 // Linux doesn't have positive/negative zero
54 #define FP_PZERO FP_ZERO
55 #endif
56 #ifndef fpclass
57 #define fpclass fpclassify
58 #endif
59 #endif
60 # include <time.h>
61 # include <fcntl.h>
62 # include <dlfcn.h>
63 # include <pthread.h>
64 #ifdef SOLARIS
65 # include <thread.h>
66 #endif
67 # include <limits.h>
68 # include <errno.h>
69 #ifdef SOLARIS
70 # include <sys/trap.h>
71 # include <sys/regset.h>
72 # include <sys/procset.h>
73 # include <ucontext.h>
74 # include <setjmp.h>
75 #endif
76 # ifdef SOLARIS_MUTATOR_LIBTHREAD
77 # include <sys/procfs.h>
78 # endif
79
80 #include <inttypes.h>
81
82 // Solaris 8 doesn't provide definitions of these
83 #ifdef SOLARIS
84 #ifndef PRIdPTR
85 #if defined(_LP64)
86 #define PRIdPTR "ld"
87 #define PRIuPTR "lu"
88 #define PRIxPTR "lx"
89 #else
90 #define PRIdPTR "d"
91 #define PRIuPTR "u"
92 #define PRIxPTR "x"
93 #endif
94 #endif
95 #endif
96
97 #ifdef LINUX
98 # include <signal.h>
99 # include <ucontext.h>
100 # include <sys/time.h>
101 #endif
102
103
104 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures
105 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in
106 // system header files. On 32-bit architectures, there is no problem.
107 // On 64-bit architectures, defining NULL as a 32-bit constant can cause
108 // problems with varargs functions: C++ integral promotion rules say for
109 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a
110 // varargs function it will remain 32-bits. Depending on the calling
111 // convention of the machine, if the argument is passed on the stack then
112 // only 32-bits of the "NULL" pointer may be initialized to zero. The
113 // other 32-bits will be garbage. If the varargs function is expecting a
114 // pointer when it extracts the argument, then we have a problem.
115 //
116 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0.
117 //
118 // Note: this fix doesn't work well on Linux because NULL will be overwritten
119 // whenever a system header file is included. Linux handles NULL correctly
120 // through a special type '__null'.
121 #ifdef SOLARIS
122 #ifdef _LP64
123 #undef NULL
124 #define NULL 0L
125 #else
126 #ifndef NULL
127 #define NULL 0
128 #endif
129 #endif
130 #endif
131
132 // NULL vs NULL_WORD:
133 // On Linux NULL is defined as a special type '__null'. Assigning __null to
134 // integer variable will cause gcc warning. Use NULL_WORD in places where a
135 // pointer is stored as integer value. On some platforms, sizeof(intptr_t) >
136 // sizeof(void*), so here we want something which is integer type, but has the
137 // same size as a pointer.
138 #ifdef LINUX
139 #ifdef _LP64
140 #define NULL_WORD 0L
141 #else
142 // Cast 0 to intptr_t rather than int32_t since they are not the same type
143 // on some platforms.
144 #define NULL_WORD ((intptr_t)0)
145 #endif
146 #else
147 #define NULL_WORD NULL
148 #endif
149
150 #ifndef LINUX
151 // Compiler-specific primitive types
152 typedef unsigned short uint16_t;
153 #ifndef _UINT32_T
154 #define _UINT32_T
155 typedef unsigned int uint32_t;
156 #endif
157 #if !defined(_SYS_INT_TYPES_H)
158 #ifndef _UINT64_T
159 #define _UINT64_T
160 typedef unsigned long long uint64_t;
161 #endif
162 // %%%% how to access definition of intptr_t portably in 5.5 onward?
163 typedef int intptr_t;
164 typedef unsigned int uintptr_t;
165 // If this gets an error, figure out a symbol XXX that implies the
166 // prior definition of intptr_t, and add "&& !defined(XXX)" above.
167 #endif
168 #endif
169
170 // On solaris 8, UINTPTR_MAX is defined as empty.
171 // Everywhere else it's an actual value.
172 #if UINTPTR_MAX - 1 == -1
173 #undef UINTPTR_MAX
174 #ifdef _LP64
175 #define UINTPTR_MAX UINT64_MAX
176 #else
177 #define UINTPTR_MAX UINT32_MAX
178 #endif /* ifdef _LP64 */
179 #endif
180
181 // Additional Java basic types
182
183 typedef unsigned char jubyte;
184 typedef unsigned short jushort;
185 typedef unsigned int juint;
186 typedef unsigned long long julong;
187
188
189 //----------------------------------------------------------------------------------------------------
190 // Constant for jlong (specifying an long long constant is C++ compiler specific)
191
192 // Build a 64bit integer constant
193 #define CONST64(x) (x ## LL)
194 #define UCONST64(x) (x ## ULL)
195
196 const jlong min_jlong = CONST64(0x8000000000000000);
197 const jlong max_jlong = CONST64(0x7fffffffffffffff);
198
199 #ifdef SOLARIS
200 //----------------------------------------------------------------------------------------------------
201 // ANSI C++ fixes
202 // NOTE:In the ANSI committee's continuing attempt to make each version
203 // of C++ incompatible with the previous version, you can no longer cast
204 // pointers to functions without specifying linkage unless you want to get
205 // warnings.
206 //
207 // This also means that pointers to functions can no longer be "hidden"
208 // in opaque types like void * because at the invokation point warnings
209 // will be generated. While this makes perfect sense from a type safety
210 // point of view it causes a lot of warnings on old code using C header
211 // files. Here are some typedefs to make the job of silencing warnings
212 // a bit easier.
213 //
214 // The final kick in the teeth is that you can only have extern "C" linkage
215 // specified at file scope. So these typedefs are here rather than in the
216 // .hpp for the class (os:Solaris usually) that needs them.
217
218 extern "C" {
219 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t);
220 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t);
221 typedef int (*int_fnP_thread_t_i)(thread_t, int);
222 typedef int (*int_fnP_thread_t)(thread_t);
223
224 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst);
225 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx);
226
227 // typedef for missing API in libc
228 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *);
229 typedef int (*int_fnP_mutex_tP)(mutex_t *);
230 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg);
231 typedef int (*int_fnP_cond_tP)(cond_t *cv);
232 };
233 #endif
234
235 //----------------------------------------------------------------------------------------------------
236 // Debugging
237
238 #define DEBUG_EXCEPTION ::abort();
239
240 extern "C" void breakpoint();
241 #define BREAKPOINT ::breakpoint()
242
243 // checking for nanness
244 #ifdef SOLARIS
245 #ifdef SPARC
246 inline int g_isnan(float f) { return isnanf(f); }
247 #else
248 // isnanf() broken on Intel Solaris use isnand()
249 inline int g_isnan(float f) { return isnand(f); }
250 #endif
251
252 inline int g_isnan(double f) { return isnand(f); }
253 #elif LINUX
254 inline int g_isnan(float f) { return isnanf(f); }
255 inline int g_isnan(double f) { return isnan(f); }
256 #else
257 #error "missing platform-specific definition here"
258 #endif
259
260 // Checking for finiteness
261
262 inline int g_isfinite(jfloat f) { return finite(f); }
263 inline int g_isfinite(jdouble f) { return finite(f); }
264
265
266 // Wide characters
267
268 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
269
270 // Portability macros
271 #define PRAGMA_INTERFACE
272 #define PRAGMA_IMPLEMENTATION
273 #define PRAGMA_IMPLEMENTATION_(arg)
274 #define VALUE_OBJ_CLASS_SPEC : public _ValueObj
275
276 // Formatting.
277 #ifdef _LP64
278 #define FORMAT64_MODIFIER "l"
279 #else // !_LP64
280 #define FORMAT64_MODIFIER "ll"
281 #endif // _LP64
282
283 #define offset_of(klass,field) offsetof(klass,field)
284
285 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP