1 /*
   2  * Copyright (c) 1997, 2016, 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 <string.h>
  37 # include <strings.h>     // for bsd'isms
  38 # include <stdarg.h>
  39 # include <stddef.h>      // for offsetof
  40 # include <stdio.h>
  41 # include <stdlib.h>
  42 # include <wchar.h>
  43 # include <stdarg.h>
  44 #ifdef SOLARIS
  45 # include <ieeefp.h>
  46 #endif
  47 # include <math.h>
  48 # include <time.h>
  49 # include <fcntl.h>
  50 # include <dlfcn.h>
  51 # include <pthread.h>
  52 #ifdef SOLARIS
  53 # include <thread.h>
  54 #endif
  55 # include <limits.h>
  56 # include <errno.h>
  57 #ifdef SOLARIS
  58 # include <sys/trap.h>
  59 # include <sys/regset.h>
  60 # include <sys/procset.h>
  61 # include <ucontext.h>
  62 # include <setjmp.h>
  63 #endif
  64 # ifdef SOLARIS_MUTATOR_LIBTHREAD
  65 # include <sys/procfs.h>
  66 # endif
  67 
  68 #include <inttypes.h>
  69 
  70 // Solaris 8 doesn't provide definitions of these
  71 #ifdef SOLARIS
  72 #ifndef PRIdPTR
  73 #if defined(_LP64)
  74 #define PRIdPTR                 "ld"
  75 #define PRIuPTR                 "lu"
  76 #define PRIxPTR                 "lx"
  77 #else
  78 #define PRIdPTR                 "d"
  79 #define PRIuPTR                 "u"
  80 #define PRIxPTR                 "x"
  81 #endif
  82 #endif
  83 #endif
  84 
  85 #ifdef LINUX
  86 # include <signal.h>
  87 # include <ucontext.h>
  88 # include <sys/time.h>
  89 #endif
  90 
  91 
  92 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures
  93 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in
  94 // system header files.  On 32-bit architectures, there is no problem.
  95 // On 64-bit architectures, defining NULL as a 32-bit constant can cause
  96 // problems with varargs functions: C++ integral promotion rules say for
  97 // varargs, we pass the argument 0 as an int.  So, if NULL was passed to a
  98 // varargs function it will remain 32-bits.  Depending on the calling
  99 // convention of the machine, if the argument is passed on the stack then
 100 // only 32-bits of the "NULL" pointer may be initialized to zero.  The
 101 // other 32-bits will be garbage.  If the varargs function is expecting a
 102 // pointer when it extracts the argument, then we have a problem.
 103 //
 104 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0.
 105 //
 106 // Note: this fix doesn't work well on Linux because NULL will be overwritten
 107 // whenever a system header file is included. Linux handles NULL correctly
 108 // through a special type '__null'.
 109 #ifdef SOLARIS
 110 #ifdef _LP64
 111 #undef NULL
 112 #define NULL 0L
 113 #else
 114 #ifndef NULL
 115 #define NULL 0
 116 #endif
 117 #endif
 118 #endif
 119 
 120 // NULL vs NULL_WORD:
 121 // On Linux NULL is defined as a special type '__null'. Assigning __null to
 122 // integer variable will cause gcc warning. Use NULL_WORD in places where a
 123 // pointer is stored as integer value. On some platforms, sizeof(intptr_t) >
 124 // sizeof(void*), so here we want something which is integer type, but has the
 125 // same size as a pointer.
 126 #ifdef LINUX
 127   #ifdef _LP64
 128     #define NULL_WORD  0L
 129   #else
 130     // Cast 0 to intptr_t rather than int32_t since they are not the same type
 131     // on some platforms.
 132     #define NULL_WORD  ((intptr_t)0)
 133   #endif
 134 #else
 135   #define NULL_WORD  NULL
 136 #endif
 137 
 138 #ifndef LINUX
 139 // Compiler-specific primitive types
 140 typedef unsigned short     uint16_t;
 141 #ifndef _UINT32_T
 142 #define _UINT32_T
 143 typedef unsigned int       uint32_t;
 144 #endif
 145 #if !defined(_SYS_INT_TYPES_H)
 146 #ifndef _UINT64_T
 147 #define _UINT64_T
 148 typedef unsigned long long uint64_t;
 149 #endif
 150 // %%%% how to access definition of intptr_t portably in 5.5 onward?
 151 typedef int                     intptr_t;
 152 typedef unsigned int            uintptr_t;
 153 // If this gets an error, figure out a symbol XXX that implies the
 154 // prior definition of intptr_t, and add "&& !defined(XXX)" above.
 155 #endif
 156 #endif
 157 
 158 // On solaris 8, UINTPTR_MAX is defined as empty.
 159 // Everywhere else it's an actual value.
 160 #if UINTPTR_MAX - 1 == -1
 161 #undef UINTPTR_MAX
 162 #ifdef _LP64
 163 #define UINTPTR_MAX UINT64_MAX
 164 #else
 165 #define UINTPTR_MAX UINT32_MAX
 166 #endif /* ifdef _LP64 */
 167 #endif
 168 
 169 // Additional Java basic types
 170 
 171 typedef unsigned char      jubyte;
 172 typedef unsigned short     jushort;
 173 typedef unsigned int       juint;
 174 typedef unsigned long long julong;
 175 
 176 
 177 #ifdef SOLARIS
 178 //----------------------------------------------------------------------------------------------------
 179 // ANSI C++ fixes
 180 // NOTE:In the ANSI committee's continuing attempt to make each version
 181 // of C++ incompatible with the previous version, you can no longer cast
 182 // pointers to functions without specifying linkage unless you want to get
 183 // warnings.
 184 //
 185 // This also means that pointers to functions can no longer be "hidden"
 186 // in opaque types like void * because at the invokation point warnings
 187 // will be generated. While this makes perfect sense from a type safety
 188 // point of view it causes a lot of warnings on old code using C header
 189 // files. Here are some typedefs to make the job of silencing warnings
 190 // a bit easier.
 191 //
 192 // The final kick in the teeth is that you can only have extern "C" linkage
 193 // specified at file scope. So these typedefs are here rather than in the
 194 // .hpp for the class (os:Solaris usually) that needs them.
 195 
 196 extern "C" {
 197    typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t);
 198    typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t);
 199    typedef int (*int_fnP_thread_t_i)(thread_t, int);
 200    typedef int (*int_fnP_thread_t)(thread_t);
 201 
 202    typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst);
 203    typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx);
 204 
 205    // typedef for missing API in libc
 206    typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *);
 207    typedef int (*int_fnP_mutex_tP)(mutex_t *);
 208    typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg);
 209    typedef int (*int_fnP_cond_tP)(cond_t *cv);
 210 };
 211 #endif
 212 
 213 //----------------------------------------------------------------------------------------------------
 214 // Debugging
 215 
 216 #define DEBUG_EXCEPTION ::abort();
 217 
 218 extern "C" void breakpoint();
 219 #define BREAKPOINT ::breakpoint()
 220 
 221 // checking for nanness
 222 #ifdef SOLARIS
 223 #ifdef SPARC
 224 inline int g_isnan(float  f) { return isnanf(f); }
 225 #else
 226 // isnanf() broken on Intel Solaris use isnand()
 227 inline int g_isnan(float  f) { return isnand(f); }
 228 #endif
 229 
 230 inline int g_isnan(double f) { return isnand(f); }
 231 #elif LINUX
 232 inline int g_isnan(float  f) { return isnanf(f); }
 233 inline int g_isnan(double f) { return isnan(f); }
 234 #else
 235 #error "missing platform-specific definition here"
 236 #endif
 237 
 238 // Checking for finiteness
 239 
 240 inline int g_isfinite(jfloat  f)                 { return finite(f); }
 241 inline int g_isfinite(jdouble f)                 { return finite(f); }
 242 
 243 
 244 // Wide characters
 245 
 246 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
 247 
 248 // Portability macros
 249 #define PRAGMA_INTERFACE
 250 #define PRAGMA_IMPLEMENTATION
 251 #define PRAGMA_IMPLEMENTATION_(arg)
 252 #define VALUE_OBJ_CLASS_SPEC    : public _ValueObj
 253 
 254 // Formatting.
 255 #ifdef _LP64
 256 #define FORMAT64_MODIFIER "l"
 257 #else // !_LP64
 258 #define FORMAT64_MODIFIER "ll"
 259 #endif // _LP64
 260 
 261 #define offset_of(klass,field) offsetof(klass,field)
 262 
 263 #ifndef USE_LIBRARY_BASED_TLS_ONLY
 264 #define THREAD_LOCAL_DECL __thread
 265 #endif
 266 
 267 // Inlining support
 268 #define NOINLINE
 269 #define ALWAYSINLINE inline __attribute__((always_inline))
 270 
 271 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP