globalDefinitions_sparcWorks.hpp revision 0:a61af66fc99e 
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
87typedef unsigned short     uint16_t;
88#ifndef _UINT32_T
89#define _UINT32_T
90typedef unsigned int       uint32_t;
91#endif
92#if !defined(_SYS_INT_TYPES_H)
93#ifndef _UINT64_T
94#define _UINT64_T
95typedef unsigned long long uint64_t;
96#endif
97// %%%% how to access definition of intptr_t portably in 5.5 onward?
98typedef int                     intptr_t;
99typedef 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
106typedef unsigned char      jubyte;
107typedef unsigned short     jushort;
108typedef unsigned int       juint;
109typedef 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
115inline jint    jint_cast   (jfloat  x)           { return *(jint*   )&x; }
116inline jlong   jlong_cast  (jdouble x)           { return *(jlong*  )&x; }
117
118inline jfloat  jfloat_cast (jint    x)           { return *(jfloat* )&x; }
119inline 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
128const jlong min_jlong = CONST64(0x8000000000000000);
129const 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
150extern "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
172extern "C" void breakpoint();
173#define BREAKPOINT ::breakpoint()
174
175// checking for nanness
176
177#ifdef SPARC
178inline int g_isnan(float  f) { return isnanf(f); }
179#else
180// isnanf() broken on Intel Solaris use isnand()
181inline int g_isnan(float  f) { return isnand(f); }
182#endif
183
184inline int g_isnan(double f) { return isnand(f); }
185
186// Checking for finiteness
187
188inline int g_isfinite(jfloat  f)                 { return finite(f); }
189inline int g_isfinite(jdouble f)                 { return finite(f); }
190
191
192// Wide characters
193
194inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
195
196
197// Misc
198int 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)
216