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 _GNU_SOURCE  /* for pread/pwrite */
  29 #include <fcntl.h>
  30 #include <math.h>
  31 #include <sys/types.h>
  32 #include <sys/stat.h>
  33 #ifdef HAVE_DIRECT_H
  34 # include <direct.h>
  35 #endif
  36 #ifdef HAVE_IO_H
  37 # include <io.h>
  38 #endif
  39 #ifdef HAVE_PROCESS_H
  40 # include <process.h>
  41 #endif
  42 #include <string.h>
  43 #ifdef HAVE_UNISTD_H
  44 # include <unistd.h>
  45 #endif
  46
  47
  48 /****************************************************************
  49  * Type definitions
  50  */
  51
  52 #ifndef HAVE_MODE_T
  53 typedef int mode_t;
  54 #endif
  55 #ifndef HAVE_OFF_T
  56 typedef long off_t;
  57 #endif
  58 #ifndef HAVE_PID_T
  59 typedef int pid_t;
  60 #endif
  61 #ifndef HAVE_SIZE_T
  62 typedef unsigned int size_t;
  63 #endif
  64 #ifndef HAVE_SSIZE_T
  65 typedef int ssize_t;
  66 #endif
  67 #ifndef HAVE_FSBLKCNT_T
  68 typedef unsigned long fsblkcnt_t;
  69 #endif
  70 #ifndef HAVE_FSFILCNT_T
  71 typedef unsigned long fsfilcnt_t;
  72 #endif
  73
  74 #ifndef HAVE_STRUCT_STATVFS_F_BLOCKS
  75 struct statvfs
  76 {
  77     unsigned long f_bsize;
  78     unsigned long f_frsize;
  79     fsblkcnt_t    f_blocks;
  80     fsblkcnt_t    f_bfree;
  81     fsblkcnt_t    f_bavail;
  82     fsfilcnt_t    f_files;
  83     fsfilcnt_t    f_ffree;
  84     fsfilcnt_t    f_favail;
  85     unsigned long f_fsid;
  86     unsigned long f_flag;
  87     unsigned long f_namemax;
  88 };
  89 #endif /* HAVE_STRUCT_STATVFS_F_BLOCKS */
  90
  91
  92 /****************************************************************
  93  * Macro definitions
  94  */
  95
  96 #ifdef HAVE_DLFCN_H
  97 #include <dlfcn.h>
  98 #else
  99 #define RTLD_LAZY    0x001
 100 #define RTLD_NOW     0x002
 101 #define RTLD_GLOBAL  0x100
 102 #endif
 103
 104 #if !defined(HAVE_FTRUNCATE) && defined(HAVE_CHSIZE)
 105 #define ftruncate chsize
 106 #endif
 107
 108 #if !defined(HAVE_POPEN) && defined(HAVE__POPEN)
 109 #define popen _popen
 110 #endif
 111
 112 #if !defined(HAVE_PCLOSE) && defined(HAVE__PCLOSE)
 113 #define pclose _pclose
 114 #endif
 115
 116 #if !defined(HAVE_SNPRINTF) && defined(HAVE__SNPRINTF)
 117 #define snprintf _snprintf
 118 #endif
 119
 120 #if !defined(HAVE_VSNPRINTF) && defined(HAVE__VSNPRINTF)
 121 #define vsnprintf _vsnprintf
 122 #endif
 123
 124 #ifndef S_ISLNK
 125 # define S_ISLNK(mod) (0)
 126 #endif
 127
 128 #ifndef S_ISSOCK
 129 # define S_ISSOCK(mod) (0)
 130 #endif
 131
 132 #ifndef S_ISDIR
 133 # define S_ISDIR(mod) (((mod) & _S_IFMT) == _S_IFDIR)
 134 #endif
 135
 136 #ifndef S_ISCHR
 137 # define S_ISCHR(mod) (((mod) & _S_IFMT) == _S_IFCHR)
 138 #endif
 139
 140 #ifndef S_ISFIFO
 141 # define S_ISFIFO(mod) (((mod) & _S_IFMT) == _S_IFIFO)
 142 #endif
 143
 144 #ifndef S_ISREG
 145 # define S_ISREG(mod) (((mod) & _S_IFMT) == _S_IFREG)
 146 #endif
 147
 148 #ifndef S_IWUSR
 149 # define S_IWUSR 0
 150 #endif
 151
 152 /* So we open files in 64 bit access mode on Linux */
 153 #ifndef O_LARGEFILE
 154 # define O_LARGEFILE 0
 155 #endif
 156
 157 #ifndef O_NONBLOCK
 158 # define O_NONBLOCK 0
 159 #endif
 160
 161 #ifndef O_BINARY
 162 # define O_BINARY 0
 163 #endif
 164
 165 #if !defined(S_IXUSR) && defined(S_IEXEC)
 166 # define S_IXUSR S_IEXEC
 167 #endif
 168 #if !defined(S_IXGRP) && defined(S_IEXEC)
 169 # define S_IXGRP S_IEXEC
 170 #endif
 171 #if !defined(S_IXOTH) && defined(S_IEXEC)
 172 # define S_IXOTH S_IEXEC
 173 #endif
 174
 175 /****************************************************************
 176  * Constants
 177  */
 178
 179 #ifndef M_PI
 180 #define M_PI 3.14159265358979323846
 181 #endif
 182
 183 #ifndef M_PI_2
 184 #define M_PI_2 1.570796326794896619
 185 #endif
 186
 187
 188 /* Macros to define assembler functions somewhat portably */
 189
 190 #ifdef __GNUC__
 191 # define __ASM_GLOBAL_FUNC(name,code) \
 192       __asm__( ".align 4\n\t" \
 193                ".globl " __ASM_NAME(#name) "\n\t" \
 194                __ASM_FUNC(#name) "\n" \
 195                __ASM_NAME(#name) ":\n\t" \
 196                code );
 197 #else  /* __GNUC__ */
 198 # define __ASM_GLOBAL_FUNC(name,code) \
 199       void __asm_dummy_##name(void) { \
 200           asm( ".align 4\n\t" \
 201                ".globl " __ASM_NAME(#name) "\n\t" \
 202                __ASM_FUNC(#name) "\n" \
 203                __ASM_NAME(#name) ":\n\t" \
 204                code ); \
 205       }
 206 #endif  /* __GNUC__ */
 207
 208
 209 /* Constructor functions */
 210
 211 #ifdef __GNUC__
 212 # define DECL_GLOBAL_CONSTRUCTOR(func) \
 213     static void func(void) __attribute__((constructor)); \
 214     static void func(void)
 215 #elif defined(__i386__)
 216 # define DECL_GLOBAL_CONSTRUCTOR(func) \
 217     static void __dummy_init_##func(void) { \
 218         asm(".section .init,\"ax\"\n\t" \
 219             "call " #func "\n\t" \
 220             ".previous"); } \
 221     static void func(void)
 222 #elif defined(__sparc__)
 223 # define DECL_GLOBAL_CONSTRUCTOR(func) \
 224     static void __dummy_init_##func(void) { \
 225         asm("\t.section \".init\",#alloc,#execinstr\n" \
 226             "\tcall " #func "\n" \
 227             "\tnop\n" \
 228             "\t.section \".text\",#alloc,#execinstr\n" ); } \
 229     static void func(void)
 230 #else
 231 # error You must define the DECL_GLOBAL_CONSTRUCTOR macro for your platform
 232 #endif
 233
 234
 235 /* Register functions */
 236
 237 #ifdef __i386__
 238 #define DEFINE_REGS_ENTRYPOINT( name, fn, args, pop_args ) \
 239     __ASM_GLOBAL_FUNC( name, \
 240                        "call " __ASM_NAME("__wine_call_from_32_regs") "\n\t" \
 241                        ".long " __ASM_NAME(#fn) "\n\t" \
 242                        ".byte " #args "," #pop_args )
 243 /* FIXME: add support for other CPUs */
 244 #endif  /* __i386__ */
 245
 246
 247 /****************************************************************
 248  * Function definitions (only when using libwine_port)
 249  */
 250
 251 #ifndef NO_LIBWINE_PORT
 252
 253 #ifndef HAVE_FSTATVFS
 254 int fstatvfs( int fd, struct statvfs *buf );
 255 #endif
 256
 257 #ifndef HAVE_GETOPT_LONG
 258 extern char *optarg;
 259 extern int optind;
 260 extern int opterr;
 261 extern int optopt;
 262 struct option;
 263
 264 #ifndef HAVE_STRUCT_OPTION_NAME
 265 struct option
 266 {
 267     const char *name;
 268     int has_arg;
 269     int *flag;
 270     int val;
 271 };
 272 #endif
 273
 274 extern int getopt_long (int ___argc, char *const *___argv,
 275                         const char *__shortopts,
 276                         const struct option *__longopts, int *__longind);
 277 extern int getopt_long_only (int ___argc, char *const *___argv,
 278                              const char *__shortopts,
 279                              const struct option *__longopts, int *__longind);
 280 #endif  /* HAVE_GETOPT_LONG */
 281
 282 #ifndef HAVE_GETPAGESIZE
 283 size_t getpagesize(void);
 284 #endif  /* HAVE_GETPAGESIZE */
 285
 286 #ifndef HAVE_GETTID
 287 pid_t gettid(void);
 288 #endif /* HAVE_GETTID */
 289
 290 #ifndef HAVE_LSTAT
 291 int lstat(const char *file_name, struct stat *buf);
 292 #endif /* HAVE_LSTAT */
 293
 294 #ifndef HAVE_MEMMOVE
 295 void *memmove(void *dest, const void *src, size_t len);
 296 #endif /* !defined(HAVE_MEMMOVE) */
 297
 298 #ifndef HAVE_PREAD
 299 ssize_t pread( int fd, void *buf, size_t count, off_t offset );
 300 #endif /* HAVE_PREAD */
 301
 302 #ifndef HAVE_PWRITE
 303 ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
 304 #endif /* HAVE_PWRITE */
 305
 306 #ifndef HAVE_READLINK
 307 int readlink( const char *path, char *buf, size_t size );
 308 #endif /* HAVE_READLINK */
 309
 310 #ifndef HAVE_SIGSETJMP
 311 # include <setjmp.h>
 312 typedef jmp_buf sigjmp_buf;
 313 int sigsetjmp( sigjmp_buf buf, int savesigs );
 314 void siglongjmp( sigjmp_buf buf, int val );
 315 #endif /* HAVE_SIGSETJMP */
 316
 317 #ifndef HAVE_STATVFS
 318 int statvfs( const char *path, struct statvfs *buf );
 319 #endif
 320
 321 #ifndef HAVE_STRNCASECMP
 322 # ifndef HAVE__STRNICMP
 323 int strncasecmp(const char *str1, const char *str2, size_t n);
 324 # else
 325 # define strncasecmp _strnicmp
 326 # endif
 327 #endif /* !defined(HAVE_STRNCASECMP) */
 328
 329 #ifndef HAVE_STRERROR
 330 const char *strerror(int err);
 331 #endif /* !defined(HAVE_STRERROR) */
 332
 333 #ifndef HAVE_STRCASECMP
 334 # ifndef HAVE__STRICMP
 335 int strcasecmp(const char *str1, const char *str2);
 336 # else
 337 # define strcasecmp _stricmp
 338 # endif
 339 #endif /* !defined(HAVE_STRCASECMP) */
 340
 341 #ifndef HAVE_USLEEP
 342 int usleep (unsigned int useconds);
 343 #endif /* !defined(HAVE_USLEEP) */
 344
 345 #ifdef __i386__
 346 static inline void *memcpy_unaligned( void *dst, const void *src, size_t size )
 347 {
 348     return memcpy( dst, src, size );
 349 }
 350 #else
 351 extern void *memcpy_unaligned( void *dst, const void *src, size_t size );
 352 #endif /* __i386__ */
 353
 354 extern int mkstemps(char *template, int suffix_len);
 355
 356 /* Process creation flags */
 357 #ifndef _P_WAIT
 358 # define _P_WAIT    0
 359 # define _P_NOWAIT  1
 360 # define _P_OVERLAY 2
 361 # define _P_NOWAITO 3
 362 # define _P_DETACH  4
 363 #endif
 364 #ifndef HAVE_SPAWNVP
 365 extern int spawnvp(int mode, const char *cmdname, const char * const argv[]);
 366 #endif
 367
 368 /* Interlocked functions */
 369
 370 #if defined(__i386__) && defined(__GNUC__)
 371
 372 extern inline long interlocked_cmpxchg( long *dest, long xchg, long compare )
 373 {
 374     long ret;
 375     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 376                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 377     return ret;
 378 }
 379
 380 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
 381 {
 382     void *ret;
 383     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 384                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 385     return ret;
 386 }
 387
 388 extern inline long interlocked_xchg( long *dest, long val )
 389 {
 390     long ret;
 391     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 392                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 393     return ret;
 394 }
 395
 396 extern inline void *interlocked_xchg_ptr( void **dest, void *val )
 397 {
 398     void *ret;
 399     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 400                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 401     return ret;
 402 }
 403
 404 extern inline long interlocked_xchg_add( long *dest, long incr )
 405 {
 406     long ret;
 407     __asm__ __volatile__( "lock; xaddl %0,(%1)"
 408                           : "=r" (ret) : "r" (dest), "0" (incr) : "memory" );
 409     return ret;
 410 }
 411
 412 #else  /* __i386___ && __GNUC__ */
 413
 414 extern long interlocked_cmpxchg( long *dest, long xchg, long compare );
 415 extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 416 extern long interlocked_xchg( long *dest, long val );
 417 extern void *interlocked_xchg_ptr( void **dest, void *val );
 418 extern long interlocked_xchg_add( long *dest, long incr );
 419
 420 #endif  /* __i386___ && __GNUC__ */
 421
 422 #else /* NO_LIBWINE_PORT */
 423
 424 #define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
 425
 426 #define fstatvfs                __WINE_NOT_PORTABLE(fstatvfs)
 427 #define getopt_long             __WINE_NOT_PORTABLE(getopt_long)
 428 #define getopt_long_only        __WINE_NOT_PORTABLE(getopt_long_only)
 429 #define getpagesize             __WINE_NOT_PORTABLE(getpagesize)
 430 #define interlocked_cmpxchg     __WINE_NOT_PORTABLE(interlocked_cmpxchg)
 431 #define interlocked_cmpxchg_ptr __WINE_NOT_PORTABLE(interlocked_cmpxchg_ptr)
 432 #define interlocked_xchg        __WINE_NOT_PORTABLE(interlocked_xchg)
 433 #define interlocked_xchg_ptr    __WINE_NOT_PORTABLE(interlocked_xchg_ptr)
 434 #define interlocked_xchg_add    __WINE_NOT_PORTABLE(interlocked_xchg_add)
 435 #define lstat                   __WINE_NOT_PORTABLE(lstat)
 436 #define memcpy_unaligned        __WINE_NOT_PORTABLE(memcpy_unaligned)
 437 #define memmove                 __WINE_NOT_PORTABLE(memmove)
 438 #define pread                   __WINE_NOT_PORTABLE(pread)
 439 #define pwrite                  __WINE_NOT_PORTABLE(pwrite)
 440 #define spawnvp                 __WINE_NOT_PORTABLE(spawnvp)
 441 #define statvfs                 __WINE_NOT_PORTABLE(statvfs)
 442 #define strcasecmp              __WINE_NOT_PORTABLE(strcasecmp)
 443 #define strerror                __WINE_NOT_PORTABLE(strerror)
 444 #define strncasecmp             __WINE_NOT_PORTABLE(strncasecmp)
 445 #define usleep                  __WINE_NOT_PORTABLE(usleep)
 446
 447 #endif /* NO_LIBWINE_PORT */
 448
 449 #endif /* !defined(__WINE_WINE_PORT_H) */