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 /****************************************************************
 177  * Constants
 178  */
 179
 180 #ifndef M_PI
 181 #define M_PI 3.14159265358979323846
 182 #endif
 183
 184 #ifndef M_PI_2
 185 #define M_PI_2 1.570796326794896619
 186 #endif
 187
 188
 189 /* Macros to define assembler functions somewhat portably */
 190
 191 #if defined(__GNUC__) && !defined(__MINGW32__)
 192 # define __ASM_GLOBAL_FUNC(name,code) \
 193       __asm__( ".text\n\t" \
 194                ".align 4\n\t" \
 195                ".globl " __ASM_NAME(#name) "\n\t" \
 196                __ASM_FUNC(#name) "\n" \
 197                __ASM_NAME(#name) ":\n\t" \
 198                code \
 199                "\n\t.previous" );
 200 #else  /* defined(__GNUC__) && !defined(__MINGW32__) */
 201 # define __ASM_GLOBAL_FUNC(name,code) \
 202       void __asm_dummy_##name(void) { \
 203           asm( ".align 4\n\t" \
 204                ".globl " __ASM_NAME(#name) "\n\t" \
 205                __ASM_FUNC(#name) "\n" \
 206                __ASM_NAME(#name) ":\n\t" \
 207                code ); \
 208       }
 209 #endif  /* __GNUC__ */
 210
 211
 212 /* Constructor functions */
 213
 214 #ifdef __GNUC__
 215 # define DECL_GLOBAL_CONSTRUCTOR(func) \
 216     static void func(void) __attribute__((constructor)); \
 217     static void func(void)
 218 #elif defined(__i386__)
 219 # define DECL_GLOBAL_CONSTRUCTOR(func) \
 220     static void __dummy_init_##func(void) { \
 221         asm(".section .init,\"ax\"\n\t" \
 222             "call " #func "\n\t" \
 223             ".previous"); } \
 224     static void func(void)
 225 #elif defined(__sparc__)
 226 # define DECL_GLOBAL_CONSTRUCTOR(func) \
 227     static void __dummy_init_##func(void) { \
 228         asm("\t.section \".init\",#alloc,#execinstr\n" \
 229             "\tcall " #func "\n" \
 230             "\tnop\n" \
 231             "\t.section \".text\",#alloc,#execinstr\n" ); } \
 232     static void func(void)
 233 #else
 234 # error You must define the DECL_GLOBAL_CONSTRUCTOR macro for your platform
 235 #endif
 236
 237
 238 /* Register functions */
 239
 240 #ifdef __i386__
 241 #define DEFINE_REGS_ENTRYPOINT( name, fn, args, pop_args ) \
 242     __ASM_GLOBAL_FUNC( name, \
 243                        "call " __ASM_NAME("__wine_call_from_32_regs") "\n\t" \
 244                        ".long " __ASM_NAME(#fn) "\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_GETPAGESIZE
 286 size_t getpagesize(void);
 287 #endif  /* HAVE_GETPAGESIZE */
 288
 289 #ifndef HAVE_GETTID
 290 pid_t gettid(void);
 291 #endif /* HAVE_GETTID */
 292
 293 #ifndef HAVE_LSTAT
 294 int lstat(const char *file_name, struct stat *buf);
 295 #endif /* HAVE_LSTAT */
 296
 297 #ifndef HAVE_MEMMOVE
 298 void *memmove(void *dest, const void *src, size_t len);
 299 #endif /* !defined(HAVE_MEMMOVE) */
 300
 301 #ifndef HAVE_PREAD
 302 ssize_t pread( int fd, void *buf, size_t count, off_t offset );
 303 #endif /* HAVE_PREAD */
 304
 305 #ifndef HAVE_PWRITE
 306 ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
 307 #endif /* HAVE_PWRITE */
 308
 309 #ifndef HAVE_READLINK
 310 int readlink( const char *path, char *buf, size_t size );
 311 #endif /* HAVE_READLINK */
 312
 313 #ifndef HAVE_SIGSETJMP
 314 # include <setjmp.h>
 315 typedef jmp_buf sigjmp_buf;
 316 int sigsetjmp( sigjmp_buf buf, int savesigs );
 317 void siglongjmp( sigjmp_buf buf, int val );
 318 #endif /* HAVE_SIGSETJMP */
 319
 320 #ifndef HAVE_STATVFS
 321 int statvfs( const char *path, struct statvfs *buf );
 322 #endif
 323
 324 #ifndef HAVE_STRNCASECMP
 325 # ifndef HAVE__STRNICMP
 326 int strncasecmp(const char *str1, const char *str2, size_t n);
 327 # else
 328 # define strncasecmp _strnicmp
 329 # endif
 330 #endif /* !defined(HAVE_STRNCASECMP) */
 331
 332 #ifndef HAVE_STRERROR
 333 const char *strerror(int err);
 334 #endif /* !defined(HAVE_STRERROR) */
 335
 336 #ifndef HAVE_STRCASECMP
 337 # ifndef HAVE__STRICMP
 338 int strcasecmp(const char *str1, const char *str2);
 339 # else
 340 # define strcasecmp _stricmp
 341 # endif
 342 #endif /* !defined(HAVE_STRCASECMP) */
 343
 344 #ifndef HAVE_USLEEP
 345 int usleep (unsigned int useconds);
 346 #endif /* !defined(HAVE_USLEEP) */
 347
 348 #ifdef __i386__
 349 static inline void *memcpy_unaligned( void *dst, const void *src, size_t size )
 350 {
 351     return memcpy( dst, src, size );
 352 }
 353 #else
 354 extern void *memcpy_unaligned( void *dst, const void *src, size_t size );
 355 #endif /* __i386__ */
 356
 357 extern int mkstemps(char *template, int suffix_len);
 358
 359 /* Process creation flags */
 360 #ifndef _P_WAIT
 361 # define _P_WAIT    0
 362 # define _P_NOWAIT  1
 363 # define _P_OVERLAY 2
 364 # define _P_NOWAITO 3
 365 # define _P_DETACH  4
 366 #endif
 367 #ifndef HAVE_SPAWNVP
 368 extern int spawnvp(int mode, const char *cmdname, const char * const argv[]);
 369 #endif
 370
 371 /* Interlocked functions */
 372
 373 #if defined(__i386__) && defined(__GNUC__)
 374
 375 extern inline long interlocked_cmpxchg( long *dest, long xchg, long compare )
 376 {
 377     long ret;
 378     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 379                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 380     return ret;
 381 }
 382
 383 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
 384 {
 385     void *ret;
 386     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 387                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 388     return ret;
 389 }
 390
 391 extern inline long interlocked_xchg( long *dest, long val )
 392 {
 393     long ret;
 394     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 395                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 396     return ret;
 397 }
 398
 399 extern inline void *interlocked_xchg_ptr( void **dest, void *val )
 400 {
 401     void *ret;
 402     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 403                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 404     return ret;
 405 }
 406
 407 extern inline long interlocked_xchg_add( long *dest, long incr )
 408 {
 409     long ret;
 410     __asm__ __volatile__( "lock; xaddl %0,(%1)"
 411                           : "=r" (ret) : "r" (dest), "0" (incr) : "memory" );
 412     return ret;
 413 }
 414
 415 #else  /* __i386___ && __GNUC__ */
 416
 417 extern long interlocked_cmpxchg( long *dest, long xchg, long compare );
 418 extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 419 extern long interlocked_xchg( long *dest, long val );
 420 extern void *interlocked_xchg_ptr( void **dest, void *val );
 421 extern long interlocked_xchg_add( long *dest, long incr );
 422
 423 #endif  /* __i386___ && __GNUC__ */
 424
 425 #else /* NO_LIBWINE_PORT */
 426
 427 #define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
 428
 429 #define fstatvfs                __WINE_NOT_PORTABLE(fstatvfs)
 430 #define getopt_long             __WINE_NOT_PORTABLE(getopt_long)
 431 #define getopt_long_only        __WINE_NOT_PORTABLE(getopt_long_only)
 432 #define getpagesize             __WINE_NOT_PORTABLE(getpagesize)
 433 #define interlocked_cmpxchg     __WINE_NOT_PORTABLE(interlocked_cmpxchg)
 434 #define interlocked_cmpxchg_ptr __WINE_NOT_PORTABLE(interlocked_cmpxchg_ptr)
 435 #define interlocked_xchg        __WINE_NOT_PORTABLE(interlocked_xchg)
 436 #define interlocked_xchg_ptr    __WINE_NOT_PORTABLE(interlocked_xchg_ptr)
 437 #define interlocked_xchg_add    __WINE_NOT_PORTABLE(interlocked_xchg_add)
 438 #define lstat                   __WINE_NOT_PORTABLE(lstat)
 439 #define memcpy_unaligned        __WINE_NOT_PORTABLE(memcpy_unaligned)
 440 #define memmove                 __WINE_NOT_PORTABLE(memmove)
 441 #define pread                   __WINE_NOT_PORTABLE(pread)
 442 #define pwrite                  __WINE_NOT_PORTABLE(pwrite)
 443 #define spawnvp                 __WINE_NOT_PORTABLE(spawnvp)
 444 #define statvfs                 __WINE_NOT_PORTABLE(statvfs)
 445 #define strcasecmp              __WINE_NOT_PORTABLE(strcasecmp)
 446 #define strerror                __WINE_NOT_PORTABLE(strerror)
 447 #define strncasecmp             __WINE_NOT_PORTABLE(strncasecmp)
 448 #define usleep                  __WINE_NOT_PORTABLE(usleep)
 449
 450 #endif /* NO_LIBWINE_PORT */
 451
 452 #endif /* !defined(__WINE_WINE_PORT_H) */