include/wine/port.h

   1 /*
   2  * Wine porting definitions
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WINE_WINE_PORT_H
  22 #define __WINE_WINE_PORT_H
  23
  24 #ifndef __WINE_CONFIG_H
  25 # error You must include config.h to use this header
  26 #endif
  27
  28 #ifdef __WINE_BASETSD_H
  29 # error You must include port.h before all other headers
  30 #endif
  31
  32 #define _FILE_OFFSET_BITS 64
  33 #define _GNU_SOURCE  /* for pread/pwrite */
  34 #include <fcntl.h>
  35 #include <math.h>
  36 #include <sys/types.h>
  37 #include <sys/stat.h>
  38 #ifdef HAVE_DIRECT_H
  39 # include <direct.h>
  40 #endif
  41 #ifdef HAVE_IO_H
  42 # include <io.h>
  43 #endif
  44 #ifdef HAVE_PROCESS_H
  45 # include <process.h>
  46 #endif
  47 #include <string.h>
  48 #ifdef HAVE_UNISTD_H
  49 # include <unistd.h>
  50 #endif
  51
  52
  53 /****************************************************************
  54  * Type definitions
  55  */
  56
  57 #if !defined(_MSC_VER) && !defined(__int64)
  58 #  if defined(__x86_64__) || defined(_WIN64)
  59 #    define __int64 long
  60 #  else
  61 #    define __int64 long long
  62 #  endif
  63 #endif
  64
  65 #ifndef HAVE_MODE_T
  66 typedef int mode_t;
  67 #endif
  68 #ifndef HAVE_OFF_T
  69 typedef long off_t;
  70 #endif
  71 #ifndef HAVE_PID_T
  72 typedef int pid_t;
  73 #endif
  74 #ifndef HAVE_SIZE_T
  75 typedef unsigned int size_t;
  76 #endif
  77 #ifndef HAVE_SSIZE_T
  78 typedef int ssize_t;
  79 #endif
  80 #ifndef HAVE_FSBLKCNT_T
  81 typedef unsigned long fsblkcnt_t;
  82 #endif
  83 #ifndef HAVE_FSFILCNT_T
  84 typedef unsigned long fsfilcnt_t;
  85 #endif
  86
  87 #ifndef HAVE_STRUCT_STATVFS_F_BLOCKS
  88 struct statvfs
  89 {
  90     unsigned long f_bsize;
  91     unsigned long f_frsize;
  92     fsblkcnt_t    f_blocks;
  93     fsblkcnt_t    f_bfree;
  94     fsblkcnt_t    f_bavail;
  95     fsfilcnt_t    f_files;
  96     fsfilcnt_t    f_ffree;
  97     fsfilcnt_t    f_favail;
  98     unsigned long f_fsid;
  99     unsigned long f_flag;
 100     unsigned long f_namemax;
 101 };
 102 #endif /* HAVE_STRUCT_STATVFS_F_BLOCKS */
 103
 104
 105 /****************************************************************
 106  * Macro definitions
 107  */
 108
 109 #ifdef HAVE_DLFCN_H
 110 #include <dlfcn.h>
 111 #else
 112 #define RTLD_LAZY    0x001
 113 #define RTLD_NOW     0x002
 114 #define RTLD_GLOBAL  0x100
 115 #endif
 116
 117 #if !defined(HAVE_FTRUNCATE) && defined(HAVE_CHSIZE)
 118 #define ftruncate chsize
 119 #endif
 120
 121 #if !defined(HAVE_POPEN) && defined(HAVE__POPEN)
 122 #define popen _popen
 123 #endif
 124
 125 #if !defined(HAVE_PCLOSE) && defined(HAVE__PCLOSE)
 126 #define pclose _pclose
 127 #endif
 128
 129 #if !defined(HAVE_STRDUP) && defined(HAVE__STRDUP)
 130 #define strdup _strdup
 131 #endif
 132
 133 #if !defined(HAVE_SNPRINTF) && defined(HAVE__SNPRINTF)
 134 #define snprintf _snprintf
 135 #endif
 136
 137 #if !defined(HAVE_VSNPRINTF) && defined(HAVE__VSNPRINTF)
 138 #define vsnprintf _vsnprintf
 139 #endif
 140
 141 #if !defined(HAVE_STRTOLL) && defined(HAVE__STRTOI64)
 142 #define strtoll _strtoi64
 143 #endif
 144
 145 #if !defined(HAVE_STRTOULL) && defined(HAVE__STRTOUI64)
 146 #define strtoull _strtoui64
 147 #endif
 148
 149 #ifndef S_ISLNK
 150 # define S_ISLNK(mod) (0)
 151 #endif
 152
 153 #ifndef S_ISSOCK
 154 # define S_ISSOCK(mod) (0)
 155 #endif
 156
 157 #ifndef S_ISDIR
 158 # define S_ISDIR(mod) (((mod) & _S_IFMT) == _S_IFDIR)
 159 #endif
 160
 161 #ifndef S_ISCHR
 162 # define S_ISCHR(mod) (((mod) & _S_IFMT) == _S_IFCHR)
 163 #endif
 164
 165 #ifndef S_ISFIFO
 166 # define S_ISFIFO(mod) (((mod) & _S_IFMT) == _S_IFIFO)
 167 #endif
 168
 169 #ifndef S_ISREG
 170 # define S_ISREG(mod) (((mod) & _S_IFMT) == _S_IFREG)
 171 #endif
 172
 173 #ifndef S_IWUSR
 174 # define S_IWUSR 0
 175 #endif
 176
 177 /* So we open files in 64 bit access mode on Linux */
 178 #ifndef O_LARGEFILE
 179 # define O_LARGEFILE 0
 180 #endif
 181
 182 #ifndef O_NONBLOCK
 183 # define O_NONBLOCK 0
 184 #endif
 185
 186 #ifndef O_BINARY
 187 # define O_BINARY 0
 188 #endif
 189
 190 #if !defined(S_IXUSR) && defined(S_IEXEC)
 191 # define S_IXUSR S_IEXEC
 192 #endif
 193 #if !defined(S_IXGRP) && defined(S_IEXEC)
 194 # define S_IXGRP S_IEXEC
 195 #endif
 196 #if !defined(S_IXOTH) && defined(S_IEXEC)
 197 # define S_IXOTH S_IEXEC
 198 #endif
 199
 200
 201 /****************************************************************
 202  * Constants
 203  */
 204
 205 #ifndef M_PI
 206 #define M_PI 3.14159265358979323846
 207 #endif
 208
 209 #ifndef M_PI_2
 210 #define M_PI_2 1.570796326794896619
 211 #endif
 212
 213
 214 /* Macros to define assembler functions somewhat portably */
 215
 216 #if defined(__GNUC__) && !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(__APPLE__)
 217 # define __ASM_GLOBAL_FUNC(name,code) \
 218       __asm__( ".text\n\t" \
 219                ".align 4\n\t" \
 220                ".globl " __ASM_NAME(#name) "\n\t" \
 221                __ASM_FUNC(#name) "\n" \
 222                __ASM_NAME(#name) ":\n\t" \
 223                code \
 224                "\n\t.previous" );
 225 #else  /* defined(__GNUC__) && !defined(__MINGW32__) && !defined(__APPLE__)  */
 226 # define __ASM_GLOBAL_FUNC(name,code) \
 227       void __asm_dummy_##name(void) { \
 228           asm( ".align 4\n\t" \
 229                ".globl " __ASM_NAME(#name) "\n\t" \
 230                __ASM_FUNC(#name) "\n" \
 231                __ASM_NAME(#name) ":\n\t" \
 232                code ); \
 233       }
 234 #endif  /* __GNUC__ */
 235
 236
 237 /* Register functions */
 238
 239 #ifdef __i386__
 240 #define DEFINE_REGS_ENTRYPOINT( name, args, pop_args ) \
 241     __ASM_GLOBAL_FUNC( name, \
 242                        "pushl %eax\n\t" \
 243                        "call " __ASM_NAME("__wine_call_from_32_regs") "\n\t" \
 244                        ".long " __ASM_NAME("__regs_") #name "-.\n\t" \
 245                        ".byte " #args "," #pop_args )
 246 /* FIXME: add support for other CPUs */
 247 #endif  /* __i386__ */
 248
 249
 250 /****************************************************************
 251  * Function definitions (only when using libwine_port)
 252  */
 253
 254 #ifndef NO_LIBWINE_PORT
 255
 256 #ifndef HAVE_FSTATVFS
 257 int fstatvfs( int fd, struct statvfs *buf );
 258 #endif
 259
 260 #ifndef HAVE_GETOPT_LONG
 261 extern char *optarg;
 262 extern int optind;
 263 extern int opterr;
 264 extern int optopt;
 265 struct option;
 266
 267 #ifndef HAVE_STRUCT_OPTION_NAME
 268 struct option
 269 {
 270     const char *name;
 271     int has_arg;
 272     int *flag;
 273     int val;
 274 };
 275 #endif
 276
 277 extern int getopt_long (int ___argc, char *const *___argv,
 278                         const char *__shortopts,
 279                         const struct option *__longopts, int *__longind);
 280 extern int getopt_long_only (int ___argc, char *const *___argv,
 281                              const char *__shortopts,
 282                              const struct option *__longopts, int *__longind);
 283 #endif  /* HAVE_GETOPT_LONG */
 284
 285 #ifndef HAVE_FFS
 286 int ffs( int x );
 287 #endif
 288
 289 #ifndef HAVE_FUTIMES
 290 struct timeval;
 291 int futimes(int fd, const struct timeval *tv);
 292 #endif
 293
 294 #ifndef HAVE_GETPAGESIZE
 295 size_t getpagesize(void);
 296 #endif  /* HAVE_GETPAGESIZE */
 297
 298 #ifndef HAVE_GETTID
 299 pid_t gettid(void);
 300 #endif /* HAVE_GETTID */
 301
 302 #ifndef HAVE_ISINF
 303 int isinf(double x);
 304 #endif
 305
 306 #ifndef HAVE_LSTAT
 307 int lstat(const char *file_name, struct stat *buf);
 308 #endif /* HAVE_LSTAT */
 309
 310 #ifndef HAVE_MEMMOVE
 311 void *memmove(void *dest, const void *src, size_t len);
 312 #endif /* !defined(HAVE_MEMMOVE) */
 313
 314 #ifndef HAVE_PREAD
 315 ssize_t pread( int fd, void *buf, size_t count, off_t offset );
 316 #endif /* HAVE_PREAD */
 317
 318 #ifndef HAVE_PWRITE
 319 ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
 320 #endif /* HAVE_PWRITE */
 321
 322 #ifndef HAVE_READLINK
 323 int readlink( const char *path, char *buf, size_t size );
 324 #endif /* HAVE_READLINK */
 325
 326 #ifndef HAVE_STATVFS
 327 int statvfs( const char *path, struct statvfs *buf );
 328 #endif
 329
 330 #ifndef HAVE_STRNCASECMP
 331 # ifndef HAVE__STRNICMP
 332 int strncasecmp(const char *str1, const char *str2, size_t n);
 333 # else
 334 # define strncasecmp _strnicmp
 335 # endif
 336 #endif /* !defined(HAVE_STRNCASECMP) */
 337
 338 #ifndef HAVE_STRERROR
 339 const char *strerror(int err);
 340 #endif /* !defined(HAVE_STRERROR) */
 341
 342 #ifndef HAVE_STRCASECMP
 343 # ifndef HAVE__STRICMP
 344 int strcasecmp(const char *str1, const char *str2);
 345 # else
 346 # define strcasecmp _stricmp
 347 # endif
 348 #endif /* !defined(HAVE_STRCASECMP) */
 349
 350 #ifndef HAVE_USLEEP
 351 int usleep (unsigned int useconds);
 352 #endif /* !defined(HAVE_USLEEP) */
 353
 354 #ifdef __i386__
 355 static inline void *memcpy_unaligned( void *dst, const void *src, size_t size )
 356 {
 357     return memcpy( dst, src, size );
 358 }
 359 #else
 360 extern void *memcpy_unaligned( void *dst, const void *src, size_t size );
 361 #endif /* __i386__ */
 362
 363 extern int mkstemps(char *template, int suffix_len);
 364
 365 /* Process creation flags */
 366 #ifndef _P_WAIT
 367 # define _P_WAIT    0
 368 # define _P_NOWAIT  1
 369 # define _P_OVERLAY 2
 370 # define _P_NOWAITO 3
 371 # define _P_DETACH  4
 372 #endif
 373 #ifndef HAVE_SPAWNVP
 374 extern int spawnvp(int mode, const char *cmdname, const char * const argv[]);
 375 #endif
 376
 377 /* Interlocked functions */
 378
 379 #if defined(__i386__) && defined(__GNUC__)
 380
 381 extern inline int interlocked_cmpxchg( int *dest, int xchg, int compare );
 382 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 383 extern __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare );
 384 extern inline int interlocked_xchg( int *dest, int val );
 385 extern inline void *interlocked_xchg_ptr( void **dest, void *val );
 386 extern inline int interlocked_xchg_add( int *dest, int incr );
 387
 388 extern inline int interlocked_cmpxchg( int *dest, int xchg, int compare )
 389 {
 390     int ret;
 391     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 392                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 393     return ret;
 394 }
 395
 396 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
 397 {
 398     void *ret;
 399     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 400                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 401     return ret;
 402 }
 403
 404 extern inline int interlocked_xchg( int *dest, int val )
 405 {
 406     int ret;
 407     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 408                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 409     return ret;
 410 }
 411
 412 extern inline void *interlocked_xchg_ptr( void **dest, void *val )
 413 {
 414     void *ret;
 415     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 416                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 417     return ret;
 418 }
 419
 420 extern inline int interlocked_xchg_add( int *dest, int incr )
 421 {
 422     int ret;
 423     __asm__ __volatile__( "lock; xaddl %0,(%1)"
 424                           : "=r" (ret) : "r" (dest), "0" (incr) : "memory" );
 425     return ret;
 426 }
 427
 428 #else  /* __i386___ && __GNUC__ */
 429
 430 extern int interlocked_cmpxchg( int *dest, int xchg, int compare );
 431 extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 432 extern __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare );
 433 extern int interlocked_xchg( int *dest, int val );
 434 extern void *interlocked_xchg_ptr( void **dest, void *val );
 435 extern int interlocked_xchg_add( int *dest, int incr );
 436
 437 #endif  /* __i386___ && __GNUC__ */
 438
 439 #else /* NO_LIBWINE_PORT */
 440
 441 #define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
 442
 443 #define ffs                     __WINE_NOT_PORTABLE(ffs)
 444 #define fstatvfs                __WINE_NOT_PORTABLE(fstatvfs)
 445 #define futimes                 __WINE_NOT_PORTABLE(futimes)
 446 #define getopt_long             __WINE_NOT_PORTABLE(getopt_long)
 447 #define getopt_long_only        __WINE_NOT_PORTABLE(getopt_long_only)
 448 #define getpagesize             __WINE_NOT_PORTABLE(getpagesize)
 449 #define interlocked_cmpxchg     __WINE_NOT_PORTABLE(interlocked_cmpxchg)
 450 #define interlocked_cmpxchg_ptr __WINE_NOT_PORTABLE(interlocked_cmpxchg_ptr)
 451 #define interlocked_xchg        __WINE_NOT_PORTABLE(interlocked_xchg)
 452 #define interlocked_xchg_ptr    __WINE_NOT_PORTABLE(interlocked_xchg_ptr)
 453 #define interlocked_xchg_add    __WINE_NOT_PORTABLE(interlocked_xchg_add)
 454 #define lstat                   __WINE_NOT_PORTABLE(lstat)
 455 #define memcpy_unaligned        __WINE_NOT_PORTABLE(memcpy_unaligned)
 456 #undef memmove
 457 #define memmove                 __WINE_NOT_PORTABLE(memmove)
 458 #define pread                   __WINE_NOT_PORTABLE(pread)
 459 #define pwrite                  __WINE_NOT_PORTABLE(pwrite)
 460 #define spawnvp                 __WINE_NOT_PORTABLE(spawnvp)
 461 #define statvfs                 __WINE_NOT_PORTABLE(statvfs)
 462 #define strcasecmp              __WINE_NOT_PORTABLE(strcasecmp)
 463 #define strerror                __WINE_NOT_PORTABLE(strerror)
 464 #define strncasecmp             __WINE_NOT_PORTABLE(strncasecmp)
 465 #define usleep                  __WINE_NOT_PORTABLE(usleep)
 466
 467 #endif /* NO_LIBWINE_PORT */
 468
 469 #endif /* !defined(__WINE_WINE_PORT_H) */