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
 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
 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 
 174 typedef unsigned char      jubyte;
 175 typedef unsigned short     jushort;
 176 typedef unsigned int       juint;
 177 typedef 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 
 187 const jlong min_jlong = CONST64(0x8000000000000000);
 188 const 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 
 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);
 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 
 231 extern "C" void breakpoint();
 232 #define BREAKPOINT ::breakpoint()
 233 
 234 #define NORETURN_ATTRIBUTE(function) function __attribute__((noreturn))
 235 
 236 // checking for nanness
 237 #ifdef SOLARIS
 238 #ifdef SPARC
 239 inline int g_isnan(float  f) { return isnanf(f); }
 240 #else
 241 // isnanf() broken on Intel Solaris use isnand()
 242 inline int g_isnan(float  f) { return isnand(f); }
 243 #endif
 244 
 245 inline int g_isnan(double f) { return isnand(f); }
 246 #elif LINUX
 247 inline int g_isnan(float  f) { return isnanf(f); }
 248 inline int g_isnan(double f) { return isnan(f); }
 249 #else
 250 #error "missing platform-specific definition here"
 251 #endif
 252 
 253 // Checking for finiteness
 254 
 255 inline int g_isfinite(jfloat  f)                 { return finite(f); }
 256 inline int g_isfinite(jdouble f)                 { return finite(f); }
 257 
 258 
 259 // Wide characters
 260 
 261 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
 262 
 263 // Portability macros
 264 #define PRAGMA_INTERFACE
 265 #define PRAGMA_IMPLEMENTATION
 266 #define PRAGMA_IMPLEMENTATION_(arg)
 267 #define VALUE_OBJ_CLASS_SPEC    : public _ValueObj
 268 
 269 // Formatting.
 270 #ifdef _LP64
 271 #define FORMAT64_MODIFIER "l"
 272 #else // !_LP64
 273 #define FORMAT64_MODIFIER "ll"
 274 #endif // _LP64
 275 
 276 #define offset_of(klass,field) offsetof(klass,field)
 277 
 278 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP