Wed, 03 Jul 2019 20:42:37 +0800
Merge
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 */
25 #ifndef SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP
26 #define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP
28 #include "prims/jni.h"
30 // This file holds compiler-dependent includes,
31 // globally used constants & types, class (forward)
32 // declarations and a few frequently used utility functions.
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 # include <time.h>
52 # include <fcntl.h>
53 # include <dlfcn.h>
54 # include <pthread.h>
55 #ifdef SOLARIS
56 # include <thread.h>
57 #endif
58 # include <limits.h>
59 # include <errno.h>
60 #ifdef SOLARIS
61 # include <sys/trap.h>
62 # include <sys/regset.h>
63 # include <sys/procset.h>
64 # include <ucontext.h>
65 # include <setjmp.h>
66 #endif
67 # ifdef SOLARIS_MUTATOR_LIBTHREAD
68 # include <sys/procfs.h>
69 # endif
71 #include <inttypes.h>
73 // Solaris 8 doesn't provide definitions of these
74 #ifdef SOLARIS
75 #ifndef PRIdPTR
76 #if defined(_LP64)
77 #define PRIdPTR "ld"
78 #define PRIuPTR "lu"
79 #define PRIxPTR "lx"
80 #else
81 #define PRIdPTR "d"
82 #define PRIuPTR "u"
83 #define PRIxPTR "x"
84 #endif
85 #endif
86 #endif
88 #ifdef LINUX
89 # include <signal.h>
90 # include <ucontext.h>
91 # include <sys/time.h>
92 #endif
95 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures
96 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in
97 // system header files. On 32-bit architectures, there is no problem.
98 // On 64-bit architectures, defining NULL as a 32-bit constant can cause
99 // problems with varargs functions: C++ integral promotion rules say for
100 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a
101 // varargs function it will remain 32-bits. Depending on the calling
102 // convention of the machine, if the argument is passed on the stack then
103 // only 32-bits of the "NULL" pointer may be initialized to zero. The
104 // other 32-bits will be garbage. If the varargs function is expecting a
105 // pointer when it extracts the argument, then we have a problem.
106 //
107 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0.
108 //
109 // Note: this fix doesn't work well on Linux because NULL will be overwritten
110 // whenever a system header file is included. Linux handles NULL correctly
111 // through a special type '__null'.
112 #ifdef SOLARIS
113 #ifdef _LP64
114 #undef NULL
115 #define NULL 0L
116 #else
117 #ifndef NULL
118 #define NULL 0
119 #endif
120 #endif
121 #endif
123 // NULL vs NULL_WORD:
124 // On Linux NULL is defined as a special type '__null'. Assigning __null to
125 // integer variable will cause gcc warning. Use NULL_WORD in places where a
126 // pointer is stored as integer value. On some platforms, sizeof(intptr_t) >
127 // sizeof(void*), so here we want something which is integer type, but has the
128 // same size as a pointer.
129 #ifdef LINUX
130 #ifdef _LP64
131 #define NULL_WORD 0L
132 #else
133 // Cast 0 to intptr_t rather than int32_t since they are not the same type
134 // on some platforms.
135 #define NULL_WORD ((intptr_t)0)
136 #endif
137 #else
138 #define NULL_WORD NULL
139 #endif
141 #ifndef LINUX
142 // Compiler-specific primitive types
143 typedef unsigned short uint16_t;
144 #ifndef _UINT32_T
145 #define _UINT32_T
146 typedef unsigned int uint32_t;
147 #endif
148 #if !defined(_SYS_INT_TYPES_H)
149 #ifndef _UINT64_T
150 #define _UINT64_T
151 typedef unsigned long long uint64_t;
152 #endif
153 // %%%% how to access definition of intptr_t portably in 5.5 onward?
154 typedef int intptr_t;
155 typedef unsigned int uintptr_t;
156 // If this gets an error, figure out a symbol XXX that implies the
157 // prior definition of intptr_t, and add "&& !defined(XXX)" above.
158 #endif
159 #endif
161 // On solaris 8, UINTPTR_MAX is defined as empty.
162 // Everywhere else it's an actual value.
163 #if UINTPTR_MAX - 1 == -1
164 #undef UINTPTR_MAX
165 #ifdef _LP64
166 #define UINTPTR_MAX UINT64_MAX
167 #else
168 #define UINTPTR_MAX UINT32_MAX
169 #endif /* ifdef _LP64 */
170 #endif
172 // Additional Java basic types
174 typedef unsigned char jubyte;
175 typedef unsigned short jushort;
176 typedef unsigned int juint;
177 typedef unsigned long long julong;
180 //----------------------------------------------------------------------------------------------------
181 // Constant for jlong (specifying an long long constant is C++ compiler specific)
183 // Build a 64bit integer constant
184 #define CONST64(x) (x ## LL)
185 #define UCONST64(x) (x ## ULL)
187 const jlong min_jlong = CONST64(0x8000000000000000);
188 const jlong max_jlong = CONST64(0x7fffffffffffffff);
190 #ifdef SOLARIS
191 //----------------------------------------------------------------------------------------------------
192 // ANSI C++ fixes
193 // NOTE:In the ANSI committee's continuing attempt to make each version
194 // of C++ incompatible with the previous version, you can no longer cast
195 // pointers to functions without specifying linkage unless you want to get
196 // warnings.
197 //
198 // This also means that pointers to functions can no longer be "hidden"
199 // in opaque types like void * because at the invokation point warnings
200 // will be generated. While this makes perfect sense from a type safety
201 // point of view it causes a lot of warnings on old code using C header
202 // files. Here are some typedefs to make the job of silencing warnings
203 // a bit easier.
204 //
205 // The final kick in the teeth is that you can only have extern "C" linkage
206 // specified at file scope. So these typedefs are here rather than in the
207 // .hpp for the class (os:Solaris usually) that needs them.
209 extern "C" {
210 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t);
211 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t);
212 typedef int (*int_fnP_thread_t_i)(thread_t, int);
213 typedef int (*int_fnP_thread_t)(thread_t);
215 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst);
216 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx);
218 // typedef for missing API in libc
219 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *);
220 typedef int (*int_fnP_mutex_tP)(mutex_t *);
221 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg);
222 typedef int (*int_fnP_cond_tP)(cond_t *cv);
223 };
224 #endif
226 //----------------------------------------------------------------------------------------------------
227 // Debugging
229 #define DEBUG_EXCEPTION ::abort();
231 extern "C" void breakpoint();
232 #define BREAKPOINT ::breakpoint()
234 // checking for nanness
235 #ifdef SOLARIS
236 #ifdef SPARC
237 inline int g_isnan(float f) { return isnanf(f); }
238 #else
239 // isnanf() broken on Intel Solaris use isnand()
240 inline int g_isnan(float f) { return isnand(f); }
241 #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
251 // Checking for finiteness
253 inline int g_isfinite(jfloat f) { return finite(f); }
254 inline int g_isfinite(jdouble f) { return finite(f); }
257 // Wide characters
259 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
262 // Misc
263 // NOTE: This one leads to an infinite recursion on Linux
264 #ifndef LINUX
265 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr);
266 #define vsnprintf local_vsnprintf
267 #endif
269 // Portability macros
270 #define PRAGMA_INTERFACE
271 #define PRAGMA_IMPLEMENTATION
272 #define PRAGMA_IMPLEMENTATION_(arg)
273 #define VALUE_OBJ_CLASS_SPEC : public _ValueObj
275 // Formatting.
276 #ifdef _LP64
277 #define FORMAT64_MODIFIER "l"
278 #else // !_LP64
279 #define FORMAT64_MODIFIER "ll"
280 #endif // _LP64
282 #define offset_of(klass,field) offsetof(klass,field)
284 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP