nt/inc/ms-w32.h

   1 /* System description file for Windows NT.
   2
   3 Copyright (C) 1993-1995, 2001-2012  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 /* Use values compatible with gnulib, as there's no reason to differ.  */
 128 #define AT_FDCWD (-3041965)
 129 #define AT_EACCESS 4
 130
 131 #ifdef HAVE_NTGUI
 132 #define HAVE_WINDOW_SYSTEM 1
 133 #define HAVE_MENUS 1
 134 #endif
 135
 136 /* Get some redefinitions in place.  */
 137
 138 #ifdef emacs
 139
 140 #ifdef _MSC_VER
 141 #include <sys/timeb.h>
 142 #include <sys/stat.h>
 143 #include <signal.h>
 144
 145 /* MSVC gets link-time errors without these redirections.  */
 146 #define fstat(a, b) sys_fstat(a, b)
 147 #define stat(a, b)  sys_stat(a, b)
 148 #define utime       sys_utime
 149 #endif
 150
 151 /* Calls that are emulated or shadowed.  */
 152 #undef chdir
 153 #define chdir   sys_chdir
 154 #undef chmod
 155 #define chmod   sys_chmod
 156 #define chown   sys_chown
 157 #undef close
 158 #define close   sys_close
 159 #undef creat
 160 #define creat   sys_creat
 161 #define ctime   sys_ctime
 162 #undef dup
 163 #define dup     sys_dup
 164 #undef dup2
 165 #define dup2    sys_dup2
 166 #define faccessat  sys_faccessat
 167 #define fopen   sys_fopen
 168 #define link    sys_link
 169 #define localtime sys_localtime
 170 #define mkdir   sys_mkdir
 171 #undef mktemp
 172 #define mktemp  sys_mktemp
 173 #undef open
 174 #define open    sys_open
 175 #define pipe    sys_pipe
 176 #undef read
 177 #define read    sys_read
 178 #define rename  sys_rename
 179 #define rmdir   sys_rmdir
 180 #define select  sys_select
 181 #define pselect sys_select
 182 #define sleep   sys_sleep
 183 #define strerror sys_strerror
 184 #undef unlink
 185 #define unlink  sys_unlink
 186 #undef write
 187 #define write   sys_write
 188
 189 /* Subprocess calls that are emulated.  */
 190 #define spawnve sys_spawnve
 191 #define wait    sys_wait
 192 #define kill    sys_kill
 193 #define signal  sys_signal
 194
 195 /* Internal signals.  */
 196 #define emacs_raise(sig) emacs_abort()
 197
 198 extern int sys_wait (int *);
 199
 200 /* termcap.c calls that are emulated.  */
 201 #define tputs   sys_tputs
 202 #define tgetstr sys_tgetstr
 203
 204 /* cm.c calls that are emulated.  */
 205 #define chcheckmagic sys_chcheckmagic
 206 #define cmcostinit   sys_cmcostinit
 207 #define cmgoto       sys_cmgoto
 208 #define cmputc       sys_cmputc
 209 #define Wcm_clear    sys_Wcm_clear
 210
 211 #endif /* emacs */
 212
 213 /* Map to MSVC names.  */
 214 #define execlp    _execlp
 215 #define execvp    _execvp
 216 #define fdopen    _fdopen
 217 #ifndef fileno
 218 #define fileno    _fileno
 219 #endif
 220 #define fsync     _commit
 221 #define ftruncate _chsize
 222 #define getpid    _getpid
 223 #ifdef _MSC_VER
 224 typedef int pid_t;
 225 #define snprintf  _snprintf
 226 #define strtoll   _strtoi64
 227 #endif
 228 #define isatty    _isatty
 229 #define logb      _logb
 230 #define _longjmp  longjmp
 231 #define lseek     _lseek
 232 #define popen     _popen
 233 #define pclose    _pclose
 234 #define umask     _umask
 235 #ifndef _MSC_VER
 236 #define utimbuf   _utimbuf
 237 #endif
 238 #define strdup    _strdup
 239 #define strupr    _strupr
 240 #define strnicmp  _strnicmp
 241 #define stricmp   _stricmp
 242 #define tzset     _tzset
 243
 244 /* We cannot include system header process.h, since there's src/process.h.  */
 245 int _getpid (void);
 246
 247 /* Include time.h before redirecting tzname, since MSVC's time.h
 248    defines _tzname to call a function, but also declares tzname a
 249    2-element array.  Having the redirection before including the
 250    header thus has the effect of declaring a function that returns an
 251    array, and triggers an error message.  */
 252 #include <time.h>
 253 #define tzname    _tzname
 254 #if !defined (_MSC_VER) || (_MSC_VER < 1400)
 255 #undef  utime
 256 #define utime     _utime
 257 #endif
 258
 259 /* 'struct timespec' is used by time-related functions in lib/ and
 260    elsewhere, but we don't use lib/time.h where the structure is
 261    defined.  */
 262 struct timespec
 263 {
 264   time_t        tv_sec;         /* seconds */
 265   long int      tv_nsec;        /* nanoseconds */
 266 };
 267
 268 /* Required for functions in lib/time_r.c, since we don't use lib/time.h.  */
 269 extern struct tm *gmtime_r (time_t const * restrict, struct tm * restrict);
 270 extern struct tm *localtime_r (time_t const * restrict, struct tm * restrict);
 271
 272 /* This is hacky, but is necessary to avoid warnings about macro
 273    redefinitions using the SDK compilers.  */
 274 #ifndef __STDC__
 275 #define __STDC__ 1
 276 #define MUST_UNDEF__STDC__
 277 #endif
 278 #include <direct.h>
 279 #include <io.h>
 280 #include <stdio.h>
 281 #ifdef MUST_UNDEF__STDC__
 282 #undef __STDC__
 283 #undef MUST_UNDEF__STDC__
 284 #endif
 285
 286 /* Defines that we need that aren't in the standard signal.h.  */
 287 #define SIGHUP  1               /* Hang up */
 288 #define SIGQUIT 3               /* Quit process */
 289 #define SIGTRAP 5               /* Trace trap */
 290 #define SIGKILL 9               /* Die, die die */
 291 #define SIGPIPE 13              /* Write on pipe with no readers */
 292 #define SIGALRM 14              /* Alarm */
 293 #define SIGCHLD 18              /* Death of child */
 294 #define SIGPROF 19              /* Profiling */
 295
 296 #ifndef NSIG
 297 #define NSIG 23
 298 #endif
 299
 300 #ifdef _MSC_VER
 301 typedef int sigset_t;
 302 typedef int ssize_t;
 303 #endif
 304
 305 typedef void (_CALLBACK_ *signal_handler) (int);
 306 extern signal_handler sys_signal (int, signal_handler);
 307
 308 struct sigaction {
 309   int sa_flags;
 310   void (_CALLBACK_ *sa_handler)(int);
 311   sigset_t sa_mask;
 312 };
 313 #define SA_RESTART      0
 314 #define SIG_BLOCK       1
 315 #define SIG_SETMASK     2
 316 #define SIG_UNBLOCK     3
 317
 318 extern int sigemptyset (sigset_t *);
 319 extern int sigaddset (sigset_t *, int);
 320 extern int sigfillset (sigset_t *);
 321 extern int sigprocmask (int, const sigset_t *, sigset_t *);
 322 extern int pthread_sigmask (int, const sigset_t *, sigset_t *);
 323 extern int sigismember (const sigset_t *, int);
 324 extern int setpgrp (int, int);
 325 extern int sigaction (int, const struct sigaction *, struct sigaction *);
 326 extern int alarm (int);
 327
 328 extern int sys_kill (int, int);
 329
 330
 331 /* For integration with MSDOS support.  */
 332 #define getdisk()               (_getdrive () - 1)
 333 #ifdef emacs
 334 #define getdefdir(_drv, _buf)   ((_buf[0] = (_drv + 'A' - 1), _buf[1] = ':', _buf[2] = '/', _buf[3] = 0), 1)
 335 #else
 336 #define getdefdir(_drv, _buf)   _getdcwd (_drv, _buf, MAXPATHLEN)
 337 #endif
 338
 339 extern char *get_emacs_configuration (void);
 340 extern char *get_emacs_configuration_options (void);
 341 #define EMACS_CONFIGURATION     get_emacs_configuration ()
 342 #define EMACS_CONFIG_OPTIONS    get_emacs_configuration_options ()
 343
 344 /* Define this so that winsock.h definitions don't get included with
 345    windows.h.  For this to have proper effect, config.h must always be
 346    included before windows.h.  */
 347 #define _WINSOCKAPI_    1
 348 #define _WINSOCK_H
 349
 350 /* Prevent accidental use of features unavailable in
 351    older Windows versions we still support.  */
 352 #define _WIN32_WINNT 0x0400
 353
 354 /* Make a leaner executable.  */
 355 #define WIN32_LEAN_AND_MEAN 1
 356
 357 /* Defines size_t and alloca ().  */
 358 #ifdef emacs
 359 #define malloc e_malloc
 360 #define free   e_free
 361 #define realloc e_realloc
 362 #define calloc e_calloc
 363 #endif
 364 #ifdef _MSC_VER
 365 #define alloca _alloca
 366 #else
 367 #include <malloc.h>
 368 #endif
 369
 370 #include <stdlib.h>
 371 #include <sys/stat.h>
 372
 373 /* Define for those source files that do not include enough NT system files.  */
 374 #ifndef NULL
 375 #ifdef __cplusplus
 376 #define NULL    0
 377 #else
 378 #define NULL    ((void *)0)
 379 #endif
 380 #endif
 381
 382 /* For proper declaration of environ.  */
 383 #ifndef sys_nerr
 384 #define sys_nerr _sys_nerr
 385 #endif
 386
 387 extern int getloadavg (double *, int);
 388 extern int getpagesize (void);
 389
 390 #if defined (__MINGW32__)
 391
 392 /* Define to 1 if the system has the type `long long int'. */
 393 # define HAVE_LONG_LONG_INT 1
 394
 395 /* Define to 1 if the system has the type `unsigned long long int'. */
 396 # define HAVE_UNSIGNED_LONG_LONG_INT 1
 397
 398 #endif
 399
 400 #ifdef _MSC_VER
 401 # if defined(_WIN64)
 402 typedef __int64 EMACS_INT;
 403 typedef unsigned __int64 EMACS_UINT;
 404 #  define EMACS_INT_MAX           LLONG_MAX
 405 #  define PRIuMAX                 "llu"
 406 #  define pI                      "ll"
 407 /* Fix a bug in MSVC headers : stdint.h */
 408 #  define _INTPTR 2
 409 # elif defined(_WIN32)
 410 /* Temporarily disable wider-than-pointer integers until they're tested more.
 411    Build with CFLAGS='-DWIDE_EMACS_INT' to try them out.  */
 412
 413 #  ifdef WIDE_EMACS_INT
 414
 415 /* Use pre-C99-style 64-bit integers.  */
 416 typedef __int64 EMACS_INT;
 417 typedef unsigned __int64 EMACS_UINT;
 418 #   define EMACS_INT_MAX           LLONG_MAX
 419 #   define PRIuMAX                 "llu"
 420 #   define pI                     "I64"
 421 #  else
 422 typedef int EMACS_INT;
 423 typedef unsigned int EMACS_UINT;
 424 #   define EMACS_INT_MAX           LONG_MAX
 425 #   define PRIuMAX                 "lu"
 426 #   define pI                     "l"
 427 #  endif
 428 # endif
 429 #endif
 430
 431 /* We need a little extra space, see ../../lisp/loadup.el.  */
 432 #define SYSTEM_PURESIZE_EXTRA 50000
 433
 434 #define DATA_START      get_data_start ()
 435
 436 /* For unexec to work on Alpha systems, we need to put Emacs'
 437    initialized data into a separate section from the CRT initialized
 438    data (because the Alpha linker freely reorders data variables, even
 439    across libraries, so our data and the CRT data get intermingled).
 440
 441    Starting with MSVC 5.0, we must also place the uninitialized data
 442    into its own section.  VC5 intermingles uninitialized data from the CRT
 443    between Emacs' static uninitialized data and its public uninitialized
 444    data.  A separate .bss section for Emacs groups both static and
 445    public uninitialized together.
 446
 447    Note that unexw32.c relies on this fact, and must be modified
 448    accordingly if this section name is changed, or if this pragma is
 449    removed.  Also, obviously, all files that define initialized data
 450    must include config.h to pick up this pragma.  */
 451
 452 /* Names must be < 8 bytes.  */
 453 #ifdef _MSC_VER
 454 #pragma data_seg("EMDATA")
 455 #pragma bss_seg("EMBSS")
 456 #endif
 457
 458 /* #define FULL_DEBUG */
 459 /* #define EMACSDEBUG */
 460
 461 #ifdef EMACSDEBUG
 462 extern void _DebPrint (const char *fmt, ...);
 463 #define DebPrint(stuff) _DebPrint stuff
 464 #else
 465 #define DebPrint(stuff)
 466 #endif
 467
 468 #ifdef _MSC_VER
 469 #if _MSC_VER >= 800 && !defined(__cplusplus)
 470 /* Unnamed type definition in parentheses.
 471    A structure, union, or enumerated type with no name is defined in a
 472    parenthetical expression.  The type definition is meaningless.  */
 473 #pragma warning(disable:4116)
 474 /* 'argument' : conversion from 'type1' to 'type2', possible loss of
 475    data A floating point type was converted to an integer type.  A
 476    possible loss of data may have occurred.  */
 477 #pragma warning(disable:4244)
 478 /* Negative integral constant converted to unsigned type.
 479    An expression converts a negative integer constant to an unsigned type.
 480    The result of the expression is probably meaningless.  */
 481 #pragma warning(disable:4308)
 482 #endif
 483 #endif
 484 #define TERM_HEADER "w32term.h"
 485
 486
 487 /* ============================================================ */