code.delx.au - gnu-emacs/blob - nt/inc/ms-w32.h

   1 /* System description file for Windows NT.
   2
   3 Copyright (C) 1993-1995, 2001-2013 Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 /* Define symbols to identify the version of Unix this is.
  21    Define all the symbols that apply correctly.  */
  22
  23 #ifndef WINDOWSNT
  24 #define WINDOWSNT
  25 #endif
  26
  27 /* #undef const */
  28
  29 /* Number of chars of output in the buffer of a stdio stream. */
  30 #ifdef __GNU_LIBRARY__
  31 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->__bufp - (FILE)->__buffer)
  32 #else
  33 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_ptr - (FILE)->_base)
  34 #endif
  35
  36 /* If you are compiling with a non-C calling convention but need to
  37    declare vararg routines differently, put it here.  */
  38 #define _VARARGS_ __cdecl
  39
  40 /* If you are providing a function to something that will call the
  41    function back (like a signal handler and signal, or main) its calling
  42    convention must be whatever standard the libraries expect.  */
  43 #define _CALLBACK_ __cdecl
  44
  45 /* Define HAVE_TIMEVAL if the system supports the BSD style clock values.
  46    Look in <sys/time.h> for a timeval structure.  */
  47 #define HAVE_TIMEVAL 1
  48
  49 /* But our select implementation doesn't allow us to make non-blocking
  50    connects.  So until that is fixed, this is necessary:  */
  51 #define BROKEN_NON_BLOCKING_CONNECT 1
  52
  53 /* And the select implementation does 1-byte read-ahead waiting
  54    for received packets, so datagrams are broken too.  */
  55 #define BROKEN_DATAGRAM_SOCKETS 1
  56
  57 #define MAIL_USE_SYSTEM_LOCK 1
  58
  59 /* Define to 1 if GCC-style __attribute__ ((__aligned__ (expr))) works. */
  60 #ifdef __GNUC__
  61 #define HAVE_ATTRIBUTE_ALIGNED 1
  62 #endif
  63
  64 /* Define to 1 if strtold conforms to C99. */
  65 #ifdef __GNUC__
  66 #define HAVE_C99_STRTOLD 1
  67 #endif
  68
  69 #if (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
  70 #define HAVE___BUILTIN_UNWIND_INIT 1
  71 #endif
  72
  73 /* ============================================================ */
  74
  75 /* Here, add any special hacks needed to make Emacs work on this
  76    system.  For example, you might define certain system call names
  77    that don't exist on your system, or that do different things on
  78    your system and must be used only through an encapsulation (which
  79    you should place, by convention, in sysdep.c).  */
  80
  81 #ifdef __GNUC__
  82 #ifndef __cplusplus
  83 #undef inline
  84 #endif
  85 #else  /* MSVC */
  86 #define inline __inline
  87 #endif
  88
  89 #ifdef __GNUC__
  90 # define restrict __restrict__
  91 #else
  92 # define restrict
  93 #endif
  94
  95 /* `mode_t' is not defined for MSVC. Define. */
  96 #ifdef _MSC_VER
  97 typedef unsigned short mode_t;
  98 #endif
  99
 100 /* A va_copy replacement for MSVC.  */
 101 #ifdef _MSC_VER
 102 # ifdef _WIN64
 103 #  ifndef va_copy               /* Need to be checked (?) */
 104 #   define va_copy(d,s) ((d) = (s))
 105 #  endif
 106 # else  /* not _WIN64 */
 107 #  define va_copy(d,s) ((d) = (s))
 108 # endif  /* not _WIN64 */
 109 #endif   /* _MSC_VER */
 110
 111 #ifndef WINDOWSNT
 112 /* Some of the files of Emacs which are intended for use with other
 113    programs assume that if you have a config.h file, you must declare
 114    the type of getenv.  */
 115 extern char *getenv ();
 116 #endif
 117
 118 #ifdef HAVE_STRINGS_H
 119 #include "strings.h"
 120 #endif
 121 #include <sys/types.h>
 122
 123 #ifndef MAXPATHLEN
 124 #define MAXPATHLEN      _MAX_PATH
 125 #endif
 126
 127 #ifdef HAVE_NTGUI
 128 #define HAVE_WINDOW_SYSTEM 1
 129 #define HAVE_MENUS 1
 130 #endif
 131
 132 /* Get some redefinitions in place.  */
 133
 134 #ifdef emacs
 135
 136 #ifdef _MSC_VER
 137 #include <sys/timeb.h>
 138 #include <sys/stat.h>
 139 #include <signal.h>
 140
 141 /* MSVC gets link-time errors without these redirections.  */
 142 #define fstat(a, b) sys_fstat(a, b)
 143 #define stat(a, b)  sys_stat(a, b)
 144 #define utime       sys_utime
 145 #endif
 146
 147 /* Calls that are emulated or shadowed.  */
 148 #undef chdir
 149 #define chdir   sys_chdir
 150 #undef chmod
 151 #define chmod   sys_chmod
 152 #undef close
 153 #define close   sys_close
 154 #undef creat
 155 #define creat   sys_creat
 156 #define ctime   sys_ctime
 157 #undef dup
 158 #define dup     sys_dup
 159 #undef dup2
 160 #define dup2    sys_dup2
 161 #define fopen   sys_fopen
 162 #define link    sys_link
 163 #define localtime sys_localtime
 164 #define mkdir   sys_mkdir
 165 #undef mktemp
 166 #define mktemp  sys_mktemp
 167 #undef open
 168 #define open    sys_open
 169 #define pipe    sys_pipe
 170 #undef read
 171 #define read    sys_read
 172 #define rename  sys_rename
 173 #define rmdir   sys_rmdir
 174 #define select  sys_select
 175 #define pselect sys_select
 176 #define sleep   sys_sleep
 177 #define strerror sys_strerror
 178 #undef unlink
 179 #define unlink  sys_unlink
 180 /* This prototype is needed because some files include config.h
 181    _after_ the standard headers, so sys_unlink gets no prototype from
 182    stdio.h or io.h.  */
 183 extern int sys_unlink (const char *);
 184 #undef write
 185 #define write   sys_write
 186
 187 /* Subprocess calls that are emulated.  */
 188 #define spawnve sys_spawnve
 189 #define kill    sys_kill
 190 #define signal  sys_signal
 191
 192 /* Internal signals.  */
 193 #define emacs_raise(sig) emacs_abort()
 194
 195 /* termcap.c calls that are emulated.  */
 196 #define tputs   sys_tputs
 197 #define tgetstr sys_tgetstr
 198
 199 /* cm.c calls that are emulated.  */
 200 #define chcheckmagic sys_chcheckmagic
 201 #define cmcostinit   sys_cmcostinit
 202 #define cmgoto       sys_cmgoto
 203 #define cmputc       sys_cmputc
 204 #define Wcm_clear    sys_Wcm_clear
 205
 206 #endif /* emacs */
 207
 208 /* Map to MSVC names.  */
 209 #define execlp    _execlp
 210 #define execvp    _execvp
 211 #define fdopen    _fdopen
 212 #ifndef fileno
 213 #define fileno    _fileno
 214 #endif
 215 #define fsync     _commit
 216 #define ftruncate _chsize
 217 #define getpid    _getpid
 218 #ifdef _MSC_VER
 219 typedef int pid_t;
 220 #define snprintf  _snprintf
 221 #define strtoll   _strtoi64
 222 #endif
 223 #define isatty    _isatty
 224 #define _longjmp  longjmp
 225 #define lseek     _lseek
 226 #define popen     _popen
 227 #define pclose    _pclose
 228 #define umask     _umask
 229 #ifndef _MSC_VER
 230 #define utimbuf   _utimbuf
 231 #endif
 232 #define strdup    _strdup
 233 #define strupr    _strupr
 234 #define strnicmp  _strnicmp
 235 #define stricmp   _stricmp
 236 #define tzset     _tzset
 237
 238 /* We cannot include system header process.h, since there's src/process.h.  */
 239 int _getpid (void);
 240
 241 /* Include time.h before redirecting tzname, since MSVC's time.h
 242    defines _tzname to call a function, but also declares tzname a
 243    2-element array.  Having the redirection before including the
 244    header thus has the effect of declaring a function that returns an
 245    array, and triggers an error message.  */
 246 #include <time.h>
 247 #define tzname    _tzname
 248 #if !defined (_MSC_VER) || (_MSC_VER < 1400)
 249 #undef  utime
 250 #define utime     _utime
 251 #endif
 252
 253 /* 'struct timespec' is used by time-related functions in lib/ and
 254    elsewhere, but we don't use lib/time.h where the structure is
 255    defined.  */
 256 struct timespec
 257 {
 258   time_t        tv_sec;         /* seconds */
 259   long int      tv_nsec;        /* nanoseconds */
 260 };
 261
 262 /* Required for functions in lib/time_r.c, since we don't use lib/time.h.  */
 263 extern struct tm *gmtime_r (time_t const * restrict, struct tm * restrict);
 264 extern struct tm *localtime_r (time_t const * restrict, struct tm * restrict);
 265
 266 #ifdef _MSC_VER
 267 /* This is hacky, but is necessary to avoid warnings about macro
 268    redefinitions using the MSVC compilers, since, when __STDC__ is
 269    undefined or zero, those compilers declare functions like fileno,
 270    lseek, and chdir, for which we defined macros above.  */
 271 #ifndef __STDC__
 272 #define __STDC__ 1
 273 #define MUST_UNDEF__STDC__
 274 #endif
 275 #include <direct.h>
 276 #include <io.h>
 277 #include <stdio.h>
 278 #ifdef MUST_UNDEF__STDC__
 279 #undef __STDC__
 280 #undef MUST_UNDEF__STDC__
 281 #endif
 282 #else  /* !_MSC_VER */
 283 #include <direct.h>
 284 #include <io.h>
 285 #include <stdio.h>
 286 #endif  /* !_MSC_VER */
 287
 288 /* Defines that we need that aren't in the standard signal.h.  */
 289 #define SIGHUP  1               /* Hang up */
 290 #define SIGQUIT 3               /* Quit process */
 291 #define SIGTRAP 5               /* Trace trap */
 292 #define SIGKILL 9               /* Die, die die */
 293 #define SIGPIPE 13              /* Write on pipe with no readers */
 294 #define SIGALRM 14              /* Alarm */
 295 #define SIGCHLD 18              /* Death of child */
 296 #define SIGPROF 19              /* Profiling */
 297
 298 #ifndef NSIG
 299 #define NSIG 23
 300 #endif
 301
 302 #ifndef ENOTSUP
 303 #define ENOTSUP ENOSYS
 304 #endif
 305
 306 #ifdef _MSC_VER
 307 typedef int sigset_t;
 308 typedef int ssize_t;
 309 #endif
 310
 311 typedef void (_CALLBACK_ *signal_handler) (int);
 312 extern signal_handler sys_signal (int, signal_handler);
 313
 314 struct sigaction {
 315   int sa_flags;
 316   void (_CALLBACK_ *sa_handler)(int);
 317   sigset_t sa_mask;
 318 };
 319 #define SA_RESTART      0
 320 #define SIG_BLOCK       1
 321 #define SIG_SETMASK     2
 322 #define SIG_UNBLOCK     3
 323
 324 extern int sigemptyset (sigset_t *);
 325 extern int sigaddset (sigset_t *, int);
 326 extern int sigfillset (sigset_t *);
 327 extern int sigprocmask (int, const sigset_t *, sigset_t *);
 328 extern int pthread_sigmask (int, const sigset_t *, sigset_t *);
 329 extern int sigismember (const sigset_t *, int);
 330 extern int setpgrp (int, int);
 331 extern int sigaction (int, const struct sigaction *, struct sigaction *);
 332 extern int alarm (int);
 333
 334 extern int sys_kill (int, int);
 335
 336
 337 /* For integration with MSDOS support.  */
 338 #define getdisk()               (_getdrive () - 1)
 339 #ifdef emacs
 340 #define getdefdir(_drv, _buf)   ((_buf[0] = (_drv + 'A' - 1), _buf[1] = ':', _buf[2] = '/', _buf[3] = 0), 1)
 341 #else
 342 #define getdefdir(_drv, _buf)   _getdcwd (_drv, _buf, MAXPATHLEN)
 343 #endif
 344
 345 extern char *get_emacs_configuration (void);
 346 extern char *get_emacs_configuration_options (void);
 347 #define EMACS_CONFIGURATION     get_emacs_configuration ()
 348 #define EMACS_CONFIG_OPTIONS    get_emacs_configuration_options ()
 349
 350 /* Define this so that winsock.h definitions don't get included with
 351    windows.h.  For this to have proper effect, config.h must always be
 352    included before windows.h.  */
 353 #define _WINSOCKAPI_    1
 354 #define _WINSOCK_H
 355
 356 /* Prevent accidental use of features unavailable in
 357    older Windows versions we still support.  */
 358 #define _WIN32_WINNT 0x0400
 359
 360 /* Make a leaner executable.  */
 361 #define WIN32_LEAN_AND_MEAN 1
 362
 363 /* Defines size_t and alloca ().  */
 364 #ifdef emacs
 365 #define malloc e_malloc
 366 #define free   e_free
 367 #define realloc e_realloc
 368 #define calloc e_calloc
 369 #endif
 370 #ifdef _MSC_VER
 371 #define alloca _alloca
 372 #else
 373 #include <malloc.h>
 374 #endif
 375
 376 #include <stdlib.h>
 377 #include <sys/stat.h>
 378
 379 /* Define for those source files that do not include enough NT system files.  */
 380 #ifndef NULL
 381 #ifdef __cplusplus
 382 #define NULL    0
 383 #else
 384 #define NULL    ((void *)0)
 385 #endif
 386 #endif
 387
 388 /* For proper declaration of environ.  */
 389 #ifndef sys_nerr
 390 #define sys_nerr _sys_nerr
 391 #endif
 392
 393 /* This must be after including stdlib.h, which defines putenv on MinGW.  */
 394 #ifdef putenv
 395 # undef putenv
 396 #endif
 397 #define putenv    sys_putenv
 398 extern int sys_putenv (char *);
 399
 400 extern int getloadavg (double *, int);
 401 extern int getpagesize (void);
 402
 403 extern void * memrchr (void const *, int, size_t);
 404
 405
 406 #if defined (__MINGW32__)
 407
 408 /* Define to 1 if the system has the type `long long int'. */
 409 # define HAVE_LONG_LONG_INT 1
 410
 411 /* Define to 1 if the system has the type `unsigned long long int'. */
 412 # define HAVE_UNSIGNED_LONG_LONG_INT 1
 413
 414 #endif
 415
 416 #ifdef _MSC_VER
 417 # if defined(_WIN64)
 418 typedef __int64 EMACS_INT;
 419 typedef unsigned __int64 EMACS_UINT;
 420 #  define EMACS_INT_MAX           LLONG_MAX
 421 #  define PRIuMAX                 "llu"
 422 #  define pI                      "ll"
 423 /* Fix a bug in MSVC headers : stdint.h */
 424 #  define _INTPTR 2
 425 # elif defined(_WIN32)
 426 /* Temporarily disable wider-than-pointer integers until they're tested more.
 427    Build with CFLAGS='-DWIDE_EMACS_INT' to try them out.  */
 428
 429 #  ifdef WIDE_EMACS_INT
 430
 431 /* Use pre-C99-style 64-bit integers.  */
 432 typedef __int64 EMACS_INT;
 433 typedef unsigned __int64 EMACS_UINT;
 434 #   define EMACS_INT_MAX           LLONG_MAX
 435 #   define PRIuMAX                 "llu"
 436 #   define pI                     "I64"
 437 #  else
 438 typedef int EMACS_INT;
 439 typedef unsigned int EMACS_UINT;
 440 #   define EMACS_INT_MAX           LONG_MAX
 441 #   define PRIuMAX                 "lu"
 442 #   define pI                     "l"
 443 #  endif
 444 # endif
 445 #endif
 446
 447 /* We need a little extra space, see ../../lisp/loadup.el.  */
 448 #define SYSTEM_PURESIZE_EXTRA 50000
 449
 450 #define DATA_START      get_data_start ()
 451
 452 /* For unexec to work on Alpha systems, we need to put Emacs'
 453    initialized data into a separate section from the CRT initialized
 454    data (because the Alpha linker freely reorders data variables, even
 455    across libraries, so our data and the CRT data get intermingled).
 456
 457    Starting with MSVC 5.0, we must also place the uninitialized data
 458    into its own section.  VC5 intermingles uninitialized data from the CRT
 459    between Emacs' static uninitialized data and its public uninitialized
 460    data.  A separate .bss section for Emacs groups both static and
 461    public uninitialized together.
 462
 463    Note that unexw32.c relies on this fact, and must be modified
 464    accordingly if this section name is changed, or if this pragma is
 465    removed.  Also, obviously, all files that define initialized data
 466    must include config.h to pick up this pragma.  */
 467
 468 /* Names must be < 8 bytes.  */
 469 #ifdef _MSC_VER
 470 #pragma data_seg("EMDATA")
 471 #pragma bss_seg("EMBSS")
 472 #endif
 473
 474 /* #define FULL_DEBUG */
 475 /* #define EMACSDEBUG */
 476
 477 #ifdef EMACSDEBUG
 478 extern void _DebPrint (const char *fmt, ...);
 479 #define DebPrint(stuff) _DebPrint stuff
 480 #else
 481 #define DebPrint(stuff)
 482 #endif
 483
 484 #ifdef _MSC_VER
 485 #if _MSC_VER >= 800 && !defined(__cplusplus)
 486 /* Unnamed type definition in parentheses.
 487    A structure, union, or enumerated type with no name is defined in a
 488    parenthetical expression.  The type definition is meaningless.  */
 489 #pragma warning(disable:4116)
 490 /* 'argument' : conversion from 'type1' to 'type2', possible loss of
 491    data A floating point type was converted to an integer type.  A
 492    possible loss of data may have occurred.  */
 493 #pragma warning(disable:4244)
 494 /* Negative integral constant converted to unsigned type.
 495    An expression converts a negative integer constant to an unsigned type.
 496    The result of the expression is probably meaningless.  */
 497 #pragma warning(disable:4308)
 498 #endif
 499 #endif
 500 #define TERM_HEADER "w32term.h"
 501
 502
 503 /* ============================================================ */