1 /*
   2  * Copyright (c) 1997, 2011, 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 # include <dirent.h>
  37 # include <string.h>
  38 # include <strings.h>     // for bsd'isms
  39 # include <stdarg.h>
  40 # include <stddef.h>      // for offsetof
  41 # include <stdio.h>
  42 # include <stdlib.h>
  43 # include <wchar.h>
  44 # include <stdarg.h>
  45 #ifdef SOLARIS
  46 # include <ieeefp.h>
  47 #endif
  48 # include <math.h>
  49 #ifdef LINUX
  50 #ifndef FP_PZERO
  51   // Linux doesn't have positive/negative zero
  52   #define FP_PZERO FP_ZERO
  53 #endif
  54 #ifndef fpclass
  55   #define fpclass fpclassify
  56 #endif
  57 #endif
  58 # include <time.h>
  59 # include <fcntl.h>
  60 # include <dlfcn.h>
  61 # include <pthread.h>
  62 #ifdef SOLARIS
  63 # include <thread.h>
  64 #endif
  65 # include <limits.h>
  66 # include <errno.h>
  67 #ifdef SOLARIS
  68 # include <sys/trap.h>
  69 # include <sys/regset.h>
  70 # include <sys/procset.h>
  71 # include <ucontext.h>
  72 # include <setjmp.h>
  73 #endif
  74 # ifdef SOLARIS_MUTATOR_LIBTHREAD
  75 # include <sys/procfs.h>
  76 # endif
  77 
  78 #include <inttypes.h>
  79 
  80 // Solaris 8 doesn't provide definitions of these
  81 #ifdef SOLARIS
  82 #ifndef PRIdPTR
  83 #if defined(_LP64)
  84 #define PRIdPTR                 "ld"
  85 #define PRIuPTR                 "lu"
  86 #define PRIxPTR                 "lx"
  87 #else
  88 #define PRIdPTR                 "d"
  89 #define PRIuPTR                 "u"
  90 #define PRIxPTR                 "x"
  91 #endif
  92 #endif
  93 #endif
  94 
  95 #ifdef LINUX
  96 # include <signal.h>
  97 # include <ucontext.h>
  98 # include <sys/time.h>
  99 #endif
 100 
 101 
 102 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures
 103 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in
 104 // system header files.  On 32-bit architectures, there is no problem.
 105 // On 64-bit architectures, defining NULL as a 32-bit constant can cause
 106 // problems with varargs functions: C++ integral promotion rules say for
 107 // varargs, we pass the argument 0 as an int.  So, if NULL was passed to a
 108 // varargs function it will remain 32-bits.  Depending on the calling
 109 // convention of the machine, if the argument is passed on the stack then
 110 // only 32-bits of the "NULL" pointer may be initialized to zero.  The
 111 // other 32-bits will be garbage.  If the varargs function is expecting a
 112 // pointer when it extracts the argument, then we have a problem.
 113 //
 114 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0.
 115 //
 116 // Note: this fix doesn't work well on Linux because NULL will be overwritten
 117 // whenever a system header file is included. Linux handles NULL correctly
 118 // through a special type '__null'.
 119 #ifdef SOLARIS
 120 #ifdef _LP64
 121 #undef NULL
 122 #define NULL 0L
 123 #else
 124 #ifndef NULL
 125 #define NULL 0
 126 #endif
 127 #endif
 128 #endif
 129 
 130 // NULL vs NULL_WORD:
 131 // On Linux NULL is defined as a special type '__null'. Assigning __null to
 132 // integer variable will cause gcc warning. Use NULL_WORD in places where a
 133 // pointer is stored as integer value. On some platforms, sizeof(intptr_t) >
 134 // sizeof(void*), so here we want something which is integer type, but has the
 135 // same size as a pointer.
 136 #ifdef LINUX
 137   #ifdef _LP64
 138     #define NULL_WORD  0L
 139   #else
 140     // Cast 0 to intptr_t rather than int32_t since they are not the same type
 141     // on some platforms.
 142     #define NULL_WORD  ((intptr_t)0)
 143   #endif
 144 #else
 145   #define NULL_WORD  NULL
 146 #endif
 147 
 148 #ifndef LINUX
 149 // Compiler-specific primitive types
 150 typedef unsigned short     uint16_t;
 151 #ifndef _UINT32_T
 152 #define _UINT32_T
 153 typedef unsigned int       uint32_t;
 154 #endif
 155 #if !defined(_SYS_INT_TYPES_H)
 156 #ifndef _UINT64_T
 157 #define _UINT64_T
 158 typedef unsigned long long uint64_t;
 159 #endif
 160 // %%%% how to access definition of intptr_t portably in 5.5 onward?
 161 typedef int                     intptr_t;
 162 typedef unsigned int            uintptr_t;
 163 // If this gets an error, figure out a symbol XXX that implies the
 164 // prior definition of intptr_t, and add "&& !defined(XXX)" above.
 165 #endif
 166 #endif
 167 
 168 // On solaris 8, UINTPTR_MAX is defined as empty.
 169 // Everywhere else it's an actual value.
 170 #if UINTPTR_MAX - 1 == -1
 171 #undef UINTPTR_MAX
 172 #ifdef _LP64
 173 #define UINTPTR_MAX UINT64_MAX
 174 #else
 175 #define UINTPTR_MAX UINT32_MAX
 176 #endif /* ifdef _LP64 */
 177 #endif
 178 
 179 // Additional Java basic types
 180 
 181 typedef unsigned char      jubyte;
 182 typedef unsigned short     jushort;
 183 typedef unsigned int       juint;
 184 typedef unsigned long long julong;
 185 
 186 
 187 //----------------------------------------------------------------------------------------------------
 188 // Constant for jlong (specifying an long long constant is C++ compiler specific)
 189 
 190 // Build a 64bit integer constant
 191 #define CONST64(x)  (x ## LL)
 192 #define UCONST64(x) (x ## ULL)
 193 
 194 const jlong min_jlong = CONST64(0x8000000000000000);
 195 const jlong max_jlong = CONST64(0x7fffffffffffffff);
 196 
 197 #ifdef SOLARIS
 198 //----------------------------------------------------------------------------------------------------
 199 // ANSI C++ fixes
 200 // NOTE:In the ANSI committee's continuing attempt to make each version
 201 // of C++ incompatible with the previous version, you can no longer cast
 202 // pointers to functions without specifying linkage unless you want to get
 203 // warnings.
 204 //
 205 // This also means that pointers to functions can no longer be "hidden"
 206 // in opaque types like void * because at the invokation point warnings
 207 // will be generated. While this makes perfect sense from a type safety
 208 // point of view it causes a lot of warnings on old code using C header
 209 // files. Here are some typedefs to make the job of silencing warnings
 210 // a bit easier.
 211 //
 212 // The final kick in the teeth is that you can only have extern "C" linkage
 213 // specified at file scope. So these typedefs are here rather than in the
 214 // .hpp for the class (os:Solaris usually) that needs them.
 215 
 216 extern "C" {
 217    typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t);
 218    typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t);
 219    typedef int (*int_fnP_thread_t_i)(thread_t, int);
 220    typedef int (*int_fnP_thread_t)(thread_t);
 221 
 222    typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst);
 223    typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx);
 224 
 225    // typedef for missing API in libc
 226    typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *);
 227    typedef int (*int_fnP_mutex_tP)(mutex_t *);
 228    typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg);
 229    typedef int (*int_fnP_cond_tP)(cond_t *cv);
 230 };
 231 #endif
 232 
 233 //----------------------------------------------------------------------------------------------------
 234 // Debugging
 235 
 236 #define DEBUG_EXCEPTION ::abort();
 237 
 238 extern "C" void breakpoint();
 239 #define BREAKPOINT ::breakpoint()
 240 
 241 // checking for nanness
 242 #ifdef SOLARIS
 243 #ifdef SPARC
 244 inline int g_isnan(float  f) { return isnanf(f); }
 245 #else
 246 // isnanf() broken on Intel Solaris use isnand()
 247 inline int g_isnan(float  f) { return isnand(f); }
 248 #endif
 249 
 250 inline int g_isnan(double f) { return isnand(f); }
 251 #elif LINUX
 252 inline int g_isnan(float  f) { return isnanf(f); }
 253 inline int g_isnan(double f) { return isnan(f); }
 254 #else
 255 #error "missing platform-specific definition here"
 256 #endif
 257 
 258 // Checking for finiteness
 259 
 260 inline int g_isfinite(jfloat  f)                 { return finite(f); }
 261 inline int g_isfinite(jdouble f)                 { return finite(f); }
 262 
 263 
 264 // Wide characters
 265 
 266 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
 267 
 268 
 269 // Misc
 270 // NOTE: This one leads to an infinite recursion on Linux
 271 #ifndef LINUX
 272 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr);
 273 #define vsnprintf local_vsnprintf
 274 #endif
 275 
 276 // Portability macros
 277 #define PRAGMA_INTERFACE
 278 #define PRAGMA_IMPLEMENTATION
 279 #define PRAGMA_IMPLEMENTATION_(arg)
 280 #define VALUE_OBJ_CLASS_SPEC    : public _ValueObj
 281 
 282 // Formatting.
 283 #ifdef _LP64
 284 #define FORMAT64_MODIFIER "l"
 285 #else // !_LP64
 286 #define FORMAT64_MODIFIER "ll"
 287 #endif // _LP64
 288 
 289 #define offset_of(klass,field) offsetof(klass,field)
 290 
 291 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP