globalDefinitions_sparcWorks.hpp revision 8004:fa8456e26deb 
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# 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
70
71#include <inttypes.h>
72
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
87
88#ifdef LINUX
89# include <signal.h>
90# include <ucontext.h>
91# include <sys/time.h>
92#endif
93
94
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
122
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
140
141#ifndef LINUX
142// Compiler-specific primitive types
143typedef unsigned short     uint16_t;
144#ifndef _UINT32_T
145#define _UINT32_T
146typedef unsigned int       uint32_t;
147#endif
148#if !defined(_SYS_INT_TYPES_H)
149#ifndef _UINT64_T
150#define _UINT64_T
151typedef unsigned long long uint64_t;
152#endif
153// %%%% how to access definition of intptr_t portably in 5.5 onward?
154typedef int                     intptr_t;
155typedef 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
160
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
171
172// Additional Java basic types
173
174typedef unsigned char      jubyte;
175typedef unsigned short     jushort;
176typedef unsigned int       juint;
177typedef unsigned long long julong;
178
179
180//----------------------------------------------------------------------------------------------------
181// Constant for jlong (specifying an long long constant is C++ compiler specific)
182
183// Build a 64bit integer constant
184#define CONST64(x)  (x ## LL)
185#define UCONST64(x) (x ## ULL)
186
187const jlong min_jlong = CONST64(0x8000000000000000);
188const jlong max_jlong = CONST64(0x7fffffffffffffff);
189
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.
208
209extern "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);
214
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);
217
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
225
226//----------------------------------------------------------------------------------------------------
227// Debugging
228
229#define DEBUG_EXCEPTION ::abort();
230
231extern "C" void breakpoint();
232#define BREAKPOINT ::breakpoint()
233
234// checking for nanness
235#ifdef SOLARIS
236#ifdef SPARC
237inline int g_isnan(float  f) { return isnanf(f); }
238#else
239// isnanf() broken on Intel Solaris use isnand()
240inline int g_isnan(float  f) { return isnand(f); }
241#endif
242
243inline int g_isnan(double f) { return isnand(f); }
244#elif LINUX
245inline int g_isnan(float  f) { return isnanf(f); }
246inline int g_isnan(double f) { return isnan(f); }
247#else
248#error "missing platform-specific definition here"
249#endif
250
251// Checking for finiteness
252
253inline int g_isfinite(jfloat  f)                 { return finite(f); }
254inline int g_isfinite(jdouble f)                 { return finite(f); }
255
256
257// Wide characters
258
259inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
260
261// Portability macros
262#define PRAGMA_INTERFACE
263#define PRAGMA_IMPLEMENTATION
264#define PRAGMA_IMPLEMENTATION_(arg)
265#define VALUE_OBJ_CLASS_SPEC    : public _ValueObj
266
267// Formatting.
268#ifdef _LP64
269#define FORMAT64_MODIFIER "l"
270#else // !_LP64
271#define FORMAT64_MODIFIER "ll"
272#endif // _LP64
273
274#define offset_of(klass,field) offsetof(klass,field)
275
276#endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP
277