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 
 271 // Misc
 272 // NOTE: This one leads to an infinite recursion on Linux
 273 #ifndef LINUX
 274 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr);
 275 #define vsnprintf local_vsnprintf
 276 #endif
 277 
 278 // Portability macros
 279 #define PRAGMA_INTERFACE
 280 #define PRAGMA_IMPLEMENTATION
 281 #define PRAGMA_IMPLEMENTATION_(arg)
 282 #define VALUE_OBJ_CLASS_SPEC    : public _ValueObj
 283 
 284 // Formatting.
 285 #ifdef _LP64
 286 #define FORMAT64_MODIFIER "l"
 287 #else // !_LP64
 288 #define FORMAT64_MODIFIER "ll"
 289 #endif // _LP64
 290 
 291 #define offset_of(klass,field) offsetof(klass,field)
 292 
 293 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP