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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 #define _FILE_OFFSET_BITS 64
  29 #define _GNU_SOURCE  /* for pread/pwrite */
  30 #include <fcntl.h>
  31 #include <math.h>
  32 #include <sys/types.h>
  33 #include <sys/stat.h>
  34 #ifdef HAVE_DIRECT_H
  35 # include <direct.h>
  36 #endif
  37 #ifdef HAVE_IO_H
  38 # include <io.h>
  39 #endif
  40 #ifdef HAVE_PROCESS_H
  41 # include <process.h>
  42 #endif
  43 #include <string.h>
  44 #ifdef HAVE_UNISTD_H
  45 # include <unistd.h>
  46 #endif
  47
  48
  49 /****************************************************************
  50  * Type definitions
  51  */
  52
  53 #ifndef HAVE_MODE_T
  54 typedef int mode_t;
  55 #endif
  56 #ifndef HAVE_OFF_T
  57 typedef long off_t;
  58 #endif
  59 #ifndef HAVE_PID_T
  60 typedef int pid_t;
  61 #endif
  62 #ifndef HAVE_SIZE_T
  63 typedef unsigned int size_t;
  64 #endif
  65 #ifndef HAVE_SSIZE_T
  66 typedef int ssize_t;
  67 #endif
  68 #ifndef HAVE_FSBLKCNT_T
  69 typedef unsigned long fsblkcnt_t;
  70 #endif
  71 #ifndef HAVE_FSFILCNT_T
  72 typedef unsigned long fsfilcnt_t;
  73 #endif
  74
  75 #ifndef HAVE_STRUCT_STATVFS_F_BLOCKS
  76 struct statvfs
  77 {
  78     unsigned long f_bsize;
  79     unsigned long f_frsize;
  80     fsblkcnt_t    f_blocks;
  81     fsblkcnt_t    f_bfree;
  82     fsblkcnt_t    f_bavail;
  83     fsfilcnt_t    f_files;
  84     fsfilcnt_t    f_ffree;
  85     fsfilcnt_t    f_favail;
  86     unsigned long f_fsid;
  87     unsigned long f_flag;
  88     unsigned long f_namemax;
  89 };
  90 #endif /* HAVE_STRUCT_STATVFS_F_BLOCKS */
  91
  92
  93 /****************************************************************
  94  * Macro definitions
  95  */
  96
  97 #ifdef HAVE_DLFCN_H
  98 #include <dlfcn.h>
  99 #else
 100 #define RTLD_LAZY    0x001
 101 #define RTLD_NOW     0x002
 102 #define RTLD_GLOBAL  0x100
 103 #endif
 104
 105 #if !defined(HAVE_FTRUNCATE) && defined(HAVE_CHSIZE)
 106 #define ftruncate chsize
 107 #endif
 108
 109 #if !defined(HAVE_POPEN) && defined(HAVE__POPEN)
 110 #define popen _popen
 111 #endif
 112
 113 #if !defined(HAVE_PCLOSE) && defined(HAVE__PCLOSE)
 114 #define pclose _pclose
 115 #endif
 116
 117 #if !defined(HAVE_SNPRINTF) && defined(HAVE__SNPRINTF)
 118 #define snprintf _snprintf
 119 #endif
 120
 121 #if !defined(HAVE_VSNPRINTF) && defined(HAVE__VSNPRINTF)
 122 #define vsnprintf _vsnprintf
 123 #endif
 124
 125 #ifndef S_ISLNK
 126 # define S_ISLNK(mod) (0)
 127 #endif
 128
 129 #ifndef S_ISSOCK
 130 # define S_ISSOCK(mod) (0)
 131 #endif
 132
 133 #ifndef S_ISDIR
 134 # define S_ISDIR(mod) (((mod) & _S_IFMT) == _S_IFDIR)
 135 #endif
 136
 137 #ifndef S_ISCHR
 138 # define S_ISCHR(mod) (((mod) & _S_IFMT) == _S_IFCHR)
 139 #endif
 140
 141 #ifndef S_ISFIFO
 142 # define S_ISFIFO(mod) (((mod) & _S_IFMT) == _S_IFIFO)
 143 #endif
 144
 145 #ifndef S_ISREG
 146 # define S_ISREG(mod) (((mod) & _S_IFMT) == _S_IFREG)
 147 #endif
 148
 149 #ifndef S_IWUSR
 150 # define S_IWUSR 0
 151 #endif
 152
 153 /* So we open files in 64 bit access mode on Linux */
 154 #ifndef O_LARGEFILE
 155 # define O_LARGEFILE 0
 156 #endif
 157
 158 #ifndef O_NONBLOCK
 159 # define O_NONBLOCK 0
 160 #endif
 161
 162 #ifndef O_BINARY
 163 # define O_BINARY 0
 164 #endif
 165
 166 #if !defined(S_IXUSR) && defined(S_IEXEC)
 167 # define S_IXUSR S_IEXEC
 168 #endif
 169 #if !defined(S_IXGRP) && defined(S_IEXEC)
 170 # define S_IXGRP S_IEXEC
 171 #endif
 172 #if !defined(S_IXOTH) && defined(S_IEXEC)
 173 # define S_IXOTH S_IEXEC
 174 #endif
 175
 176
 177 /****************************************************************
 178  * Constants
 179  */
 180
 181 #ifndef M_PI
 182 #define M_PI 3.14159265358979323846
 183 #endif
 184
 185 #ifndef M_PI_2
 186 #define M_PI_2 1.570796326794896619
 187 #endif
 188
 189
 190 /* Macros to define assembler functions somewhat portably */
 191
 192 #if defined(__GNUC__) && !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(__APPLE__)
 193 # define __ASM_GLOBAL_FUNC(name,code) \
 194       __asm__( ".text\n\t" \
 195                ".align 4\n\t" \
 196                ".globl " __ASM_NAME(#name) "\n\t" \
 197                __ASM_FUNC(#name) "\n" \
 198                __ASM_NAME(#name) ":\n\t" \
 199                code \
 200                "\n\t.previous" );
 201 #else  /* defined(__GNUC__) && !defined(__MINGW32__) && !defined(__APPLE__)  */
 202 # define __ASM_GLOBAL_FUNC(name,code) \
 203       void __asm_dummy_##name(void) { \
 204           asm( ".align 4\n\t" \
 205                ".globl " __ASM_NAME(#name) "\n\t" \
 206                __ASM_FUNC(#name) "\n" \
 207                __ASM_NAME(#name) ":\n\t" \
 208                code ); \
 209       }
 210 #endif  /* __GNUC__ */
 211
 212
 213 /* Register functions */
 214
 215 #ifdef __i386__
 216 #define DEFINE_REGS_ENTRYPOINT( name, args, pop_args ) \
 217     __ASM_GLOBAL_FUNC( name, \
 218                        "pushl %eax\n\t" \
 219                        "call " __ASM_NAME("__wine_call_from_32_regs") "\n\t" \
 220                        ".long " __ASM_NAME("__regs_") #name "-.\n\t" \
 221                        ".byte " #args "," #pop_args )
 222 /* FIXME: add support for other CPUs */
 223 #endif  /* __i386__ */
 224
 225
 226 /****************************************************************
 227  * Function definitions (only when using libwine_port)
 228  */
 229
 230 #ifndef NO_LIBWINE_PORT
 231
 232 #ifndef HAVE_FSTATVFS
 233 int fstatvfs( int fd, struct statvfs *buf );
 234 #endif
 235
 236 #ifndef HAVE_GETOPT_LONG
 237 extern char *optarg;
 238 extern int optind;
 239 extern int opterr;
 240 extern int optopt;
 241 struct option;
 242
 243 #ifndef HAVE_STRUCT_OPTION_NAME
 244 struct option
 245 {
 246     const char *name;
 247     int has_arg;
 248     int *flag;
 249     int val;
 250 };
 251 #endif
 252
 253 extern int getopt_long (int ___argc, char *const *___argv,
 254                         const char *__shortopts,
 255                         const struct option *__longopts, int *__longind);
 256 extern int getopt_long_only (int ___argc, char *const *___argv,
 257                              const char *__shortopts,
 258                              const struct option *__longopts, int *__longind);
 259 #endif  /* HAVE_GETOPT_LONG */
 260
 261 #ifndef HAVE_FFS
 262 int ffs( int x );
 263 #endif
 264
 265 #ifndef HAVE_FUTIMES
 266 struct timeval;
 267 int futimes(int fd, const struct timeval tv[2]);
 268 #endif
 269
 270 #ifndef HAVE_GETPAGESIZE
 271 size_t getpagesize(void);
 272 #endif  /* HAVE_GETPAGESIZE */
 273
 274 #ifndef HAVE_GETTID
 275 pid_t gettid(void);
 276 #endif /* HAVE_GETTID */
 277
 278 #ifndef HAVE_LSTAT
 279 int lstat(const char *file_name, struct stat *buf);
 280 #endif /* HAVE_LSTAT */
 281
 282 #ifndef HAVE_MEMMOVE
 283 void *memmove(void *dest, const void *src, size_t len);
 284 #endif /* !defined(HAVE_MEMMOVE) */
 285
 286 #ifndef HAVE_PREAD
 287 ssize_t pread( int fd, void *buf, size_t count, off_t offset );
 288 #endif /* HAVE_PREAD */
 289
 290 #ifndef HAVE_PWRITE
 291 ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
 292 #endif /* HAVE_PWRITE */
 293
 294 #ifndef HAVE_READLINK
 295 int readlink( const char *path, char *buf, size_t size );
 296 #endif /* HAVE_READLINK */
 297
 298 #ifndef HAVE_SIGSETJMP
 299 # include <setjmp.h>
 300 typedef jmp_buf sigjmp_buf;
 301 int sigsetjmp( sigjmp_buf buf, int savesigs );
 302 void siglongjmp( sigjmp_buf buf, int val );
 303 #endif /* HAVE_SIGSETJMP */
 304
 305 #ifndef HAVE_STATVFS
 306 int statvfs( const char *path, struct statvfs *buf );
 307 #endif
 308
 309 #ifndef HAVE_STRNCASECMP
 310 # ifndef HAVE__STRNICMP
 311 int strncasecmp(const char *str1, const char *str2, size_t n);
 312 # else
 313 # define strncasecmp _strnicmp
 314 # endif
 315 #endif /* !defined(HAVE_STRNCASECMP) */
 316
 317 #ifndef HAVE_STRERROR
 318 const char *strerror(int err);
 319 #endif /* !defined(HAVE_STRERROR) */
 320
 321 #ifndef HAVE_STRCASECMP
 322 # ifndef HAVE__STRICMP
 323 int strcasecmp(const char *str1, const char *str2);
 324 # else
 325 # define strcasecmp _stricmp
 326 # endif
 327 #endif /* !defined(HAVE_STRCASECMP) */
 328
 329 #ifndef HAVE_USLEEP
 330 int usleep (unsigned int useconds);
 331 #endif /* !defined(HAVE_USLEEP) */
 332
 333 #ifdef __i386__
 334 static inline void *memcpy_unaligned( void *dst, const void *src, size_t size )
 335 {
 336     return memcpy( dst, src, size );
 337 }
 338 #else
 339 extern void *memcpy_unaligned( void *dst, const void *src, size_t size );
 340 #endif /* __i386__ */
 341
 342 extern int mkstemps(char *template, int suffix_len);
 343
 344 /* Process creation flags */
 345 #ifndef _P_WAIT
 346 # define _P_WAIT    0
 347 # define _P_NOWAIT  1
 348 # define _P_OVERLAY 2
 349 # define _P_NOWAITO 3
 350 # define _P_DETACH  4
 351 #endif
 352 #ifndef HAVE_SPAWNVP
 353 extern int spawnvp(int mode, const char *cmdname, const char * const argv[]);
 354 #endif
 355
 356 /* Interlocked functions */
 357
 358 #if defined(__i386__) && defined(__GNUC__)
 359
 360 extern inline int interlocked_cmpxchg( int *dest, int xchg, int compare );
 361 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 362 extern inline int interlocked_xchg( int *dest, int val );
 363 extern inline void *interlocked_xchg_ptr( void **dest, void *val );
 364 extern inline int interlocked_xchg_add( int *dest, int incr );
 365
 366 extern inline int interlocked_cmpxchg( int *dest, int xchg, int compare )
 367 {
 368     int ret;
 369     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 370                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 371     return ret;
 372 }
 373
 374 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
 375 {
 376     void *ret;
 377     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 378                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 379     return ret;
 380 }
 381
 382 extern inline int interlocked_xchg( int *dest, int val )
 383 {
 384     int ret;
 385     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 386                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 387     return ret;
 388 }
 389
 390 extern inline void *interlocked_xchg_ptr( void **dest, void *val )
 391 {
 392     void *ret;
 393     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 394                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 395     return ret;
 396 }
 397
 398 extern inline int interlocked_xchg_add( int *dest, int incr )
 399 {
 400     int ret;
 401     __asm__ __volatile__( "lock; xaddl %0,(%1)"
 402                           : "=r" (ret) : "r" (dest), "0" (incr) : "memory" );
 403     return ret;
 404 }
 405
 406 #else  /* __i386___ && __GNUC__ */
 407
 408 extern int interlocked_cmpxchg( int *dest, int xchg, int compare );
 409 extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 410 extern int interlocked_xchg( int *dest, int val );
 411 extern void *interlocked_xchg_ptr( void **dest, void *val );
 412 extern int interlocked_xchg_add( int *dest, int incr );
 413
 414 #endif  /* __i386___ && __GNUC__ */
 415
 416 #else /* NO_LIBWINE_PORT */
 417
 418 #define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
 419
 420 #define ffs                     __WINE_NOT_PORTABLE(ffs)
 421 #define fstatvfs                __WINE_NOT_PORTABLE(fstatvfs)
 422 #define futimes                 __WINE_NOT_PORTABLE(futimes)
 423 #define getopt_long             __WINE_NOT_PORTABLE(getopt_long)
 424 #define getopt_long_only        __WINE_NOT_PORTABLE(getopt_long_only)
 425 #define getpagesize             __WINE_NOT_PORTABLE(getpagesize)
 426 #define interlocked_cmpxchg     __WINE_NOT_PORTABLE(interlocked_cmpxchg)
 427 #define interlocked_cmpxchg_ptr __WINE_NOT_PORTABLE(interlocked_cmpxchg_ptr)
 428 #define interlocked_xchg        __WINE_NOT_PORTABLE(interlocked_xchg)
 429 #define interlocked_xchg_ptr    __WINE_NOT_PORTABLE(interlocked_xchg_ptr)
 430 #define interlocked_xchg_add    __WINE_NOT_PORTABLE(interlocked_xchg_add)
 431 #define lstat                   __WINE_NOT_PORTABLE(lstat)
 432 #define memcpy_unaligned        __WINE_NOT_PORTABLE(memcpy_unaligned)
 433 #undef memmove
 434 #define memmove                 __WINE_NOT_PORTABLE(memmove)
 435 #define pread                   __WINE_NOT_PORTABLE(pread)
 436 #define pwrite                  __WINE_NOT_PORTABLE(pwrite)
 437 #define spawnvp                 __WINE_NOT_PORTABLE(spawnvp)
 438 #define statvfs                 __WINE_NOT_PORTABLE(statvfs)
 439 #define strcasecmp              __WINE_NOT_PORTABLE(strcasecmp)
 440 #define strerror                __WINE_NOT_PORTABLE(strerror)
 441 #define strncasecmp             __WINE_NOT_PORTABLE(strncasecmp)
 442 #define usleep                  __WINE_NOT_PORTABLE(usleep)
 443
 444 #endif /* NO_LIBWINE_PORT */
 445
 446 #endif /* !defined(__WINE_WINE_PORT_H) */