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 #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 access
 149 #define access  sys_access
 150 #undef chdir
 151 #define chdir   sys_chdir
 152 #undef chmod
 153 #define chmod   sys_chmod
 154 #define chown   sys_chown
 155 #undef close
 156 #define close   sys_close
 157 #undef creat
 158 #define creat   sys_creat
 159 #define ctime   sys_ctime
 160 #undef dup
 161 #define dup     sys_dup
 162 #undef dup2
 163 #define dup2    sys_dup2
 164 #define fopen   sys_fopen
 165 #define link    sys_link
 166 #define localtime sys_localtime
 167 #define mkdir   sys_mkdir
 168 #undef mktemp
 169 #define mktemp  sys_mktemp
 170 #undef open
 171 #define open    sys_open
 172 #define pipe    sys_pipe
 173 #undef read
 174 #define read    sys_read
 175 #define rename  sys_rename
 176 #define rmdir   sys_rmdir
 177 #define select  sys_select
 178 #define pselect sys_select
 179 #define sleep   sys_sleep
 180 #define strerror sys_strerror
 181 #undef unlink
 182 #define unlink  sys_unlink
 183 #undef write
 184 #define write   sys_write
 185
 186 /* Subprocess calls that are emulated.  */
 187 #define spawnve sys_spawnve
 188 #define kill    sys_kill
 189 #define signal  sys_signal
 190
 191 /* Internal signals.  */
 192 #define emacs_raise(sig) emacs_abort()
 193
 194 /* termcap.c calls that are emulated.  */
 195 #define tputs   sys_tputs
 196 #define tgetstr sys_tgetstr
 197
 198 /* cm.c calls that are emulated.  */
 199 #define chcheckmagic sys_chcheckmagic
 200 #define cmcostinit   sys_cmcostinit
 201 #define cmgoto       sys_cmgoto
 202 #define cmputc       sys_cmputc
 203 #define Wcm_clear    sys_Wcm_clear
 204
 205 #endif /* emacs */
 206
 207 /* Map to MSVC names.  */
 208 #define execlp    _execlp
 209 #define execvp    _execvp
 210 #define fdopen    _fdopen
 211 #ifndef fileno
 212 #define fileno    _fileno
 213 #endif
 214 #define fsync     _commit
 215 #define ftruncate _chsize
 216 #define getpid    _getpid
 217 #ifdef _MSC_VER
 218 typedef int pid_t;
 219 #define snprintf  _snprintf
 220 #define strtoll   _strtoi64
 221 #endif
 222 #define isatty    _isatty
 223 #define logb      _logb
 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 /* This is hacky, but is necessary to avoid warnings about macro
 267    redefinitions using the SDK compilers.  */
 268 #ifndef __STDC__
 269 #define __STDC__ 1
 270 #define MUST_UNDEF__STDC__
 271 #endif
 272 #include <direct.h>
 273 #include <io.h>
 274 #include <stdio.h>
 275 #ifdef MUST_UNDEF__STDC__
 276 #undef __STDC__
 277 #undef MUST_UNDEF__STDC__
 278 #endif
 279
 280 /* Defines that we need that aren't in the standard signal.h.  */
 281 #define SIGHUP  1               /* Hang up */
 282 #define SIGQUIT 3               /* Quit process */
 283 #define SIGTRAP 5               /* Trace trap */
 284 #define SIGKILL 9               /* Die, die die */
 285 #define SIGPIPE 13              /* Write on pipe with no readers */
 286 #define SIGALRM 14              /* Alarm */
 287 #define SIGCHLD 18              /* Death of child */
 288 #define SIGPROF 19              /* Profiling */
 289
 290 #ifndef NSIG
 291 #define NSIG 23
 292 #endif
 293
 294 #ifdef _MSC_VER
 295 typedef int sigset_t;
 296 typedef int ssize_t;
 297 #endif
 298
 299 typedef void (_CALLBACK_ *signal_handler) (int);
 300 extern signal_handler sys_signal (int, signal_handler);
 301
 302 struct sigaction {
 303   int sa_flags;
 304   void (_CALLBACK_ *sa_handler)(int);
 305   sigset_t sa_mask;
 306 };
 307 #define SA_RESTART      0
 308 #define SIG_BLOCK       1
 309 #define SIG_SETMASK     2
 310 #define SIG_UNBLOCK     3
 311
 312 extern int sigemptyset (sigset_t *);
 313 extern int sigaddset (sigset_t *, int);
 314 extern int sigfillset (sigset_t *);
 315 extern int sigprocmask (int, const sigset_t *, sigset_t *);
 316 extern int pthread_sigmask (int, const sigset_t *, sigset_t *);
 317 extern int sigismember (const sigset_t *, int);
 318 extern int setpgrp (int, int);
 319 extern int sigaction (int, const struct sigaction *, struct sigaction *);
 320 extern int alarm (int);
 321
 322 extern int sys_kill (int, int);
 323
 324
 325 /* For integration with MSDOS support.  */
 326 #define getdisk()               (_getdrive () - 1)
 327 #ifdef emacs
 328 #define getdefdir(_drv, _buf)   ((_buf[0] = (_drv + 'A' - 1), _buf[1] = ':', _buf[2] = '/', _buf[3] = 0), 1)
 329 #else
 330 #define getdefdir(_drv, _buf)   _getdcwd (_drv, _buf, MAXPATHLEN)
 331 #endif
 332
 333 extern char *get_emacs_configuration (void);
 334 extern char *get_emacs_configuration_options (void);
 335 #define EMACS_CONFIGURATION     get_emacs_configuration ()
 336 #define EMACS_CONFIG_OPTIONS    get_emacs_configuration_options ()
 337
 338 /* Define this so that winsock.h definitions don't get included with
 339    windows.h.  For this to have proper effect, config.h must always be
 340    included before windows.h.  */
 341 #define _WINSOCKAPI_    1
 342 #define _WINSOCK_H
 343
 344 /* Prevent accidental use of features unavailable in
 345    older Windows versions we still support.  */
 346 #define _WIN32_WINNT 0x0400
 347
 348 /* Make a leaner executable.  */
 349 #define WIN32_LEAN_AND_MEAN 1
 350
 351 /* Defines size_t and alloca ().  */
 352 #ifdef emacs
 353 #define malloc e_malloc
 354 #define free   e_free
 355 #define realloc e_realloc
 356 #define calloc e_calloc
 357 #endif
 358 #ifdef _MSC_VER
 359 #define alloca _alloca
 360 #else
 361 #include <malloc.h>
 362 #endif
 363
 364 #include <stdlib.h>
 365 #include <sys/stat.h>
 366
 367 /* Define for those source files that do not include enough NT system files.  */
 368 #ifndef NULL
 369 #ifdef __cplusplus
 370 #define NULL    0
 371 #else
 372 #define NULL    ((void *)0)
 373 #endif
 374 #endif
 375
 376 /* For proper declaration of environ.  */
 377 #ifndef sys_nerr
 378 #define sys_nerr _sys_nerr
 379 #endif
 380
 381 extern int getloadavg (double *, int);
 382 extern int getpagesize (void);
 383
 384 #if defined (__MINGW32__)
 385
 386 /* Define to 1 if the system has the type `long long int'. */
 387 # define HAVE_LONG_LONG_INT 1
 388
 389 /* Define to 1 if the system has the type `unsigned long long int'. */
 390 # define HAVE_UNSIGNED_LONG_LONG_INT 1
 391
 392 #endif
 393
 394 #ifdef _MSC_VER
 395 # if defined(_WIN64)
 396 typedef __int64 EMACS_INT;
 397 typedef unsigned __int64 EMACS_UINT;
 398 #  define EMACS_INT_MAX           LLONG_MAX
 399 #  define PRIuMAX                 "llu"
 400 #  define pI                      "ll"
 401 /* Fix a bug in MSVC headers : stdint.h */
 402 #  define _INTPTR 2
 403 # elif defined(_WIN32)
 404 /* Temporarily disable wider-than-pointer integers until they're tested more.
 405    Build with CFLAGS='-DWIDE_EMACS_INT' to try them out.  */
 406
 407 #  ifdef WIDE_EMACS_INT
 408
 409 /* Use pre-C99-style 64-bit integers.  */
 410 typedef __int64 EMACS_INT;
 411 typedef unsigned __int64 EMACS_UINT;
 412 #   define EMACS_INT_MAX           LLONG_MAX
 413 #   define PRIuMAX                 "llu"
 414 #   define pI                     "I64"
 415 #  else
 416 typedef int EMACS_INT;
 417 typedef unsigned int EMACS_UINT;
 418 #   define EMACS_INT_MAX           LONG_MAX
 419 #   define PRIuMAX                 "lu"
 420 #   define pI                     "l"
 421 #  endif
 422 # endif
 423 #endif
 424
 425 /* We need a little extra space, see ../../lisp/loadup.el.  */
 426 #define SYSTEM_PURESIZE_EXTRA 50000
 427
 428 #define DATA_START      get_data_start ()
 429
 430 /* For unexec to work on Alpha systems, we need to put Emacs'
 431    initialized data into a separate section from the CRT initialized
 432    data (because the Alpha linker freely reorders data variables, even
 433    across libraries, so our data and the CRT data get intermingled).
 434
 435    Starting with MSVC 5.0, we must also place the uninitialized data
 436    into its own section.  VC5 intermingles uninitialized data from the CRT
 437    between Emacs' static uninitialized data and its public uninitialized
 438    data.  A separate .bss section for Emacs groups both static and
 439    public uninitialized together.
 440
 441    Note that unexw32.c relies on this fact, and must be modified
 442    accordingly if this section name is changed, or if this pragma is
 443    removed.  Also, obviously, all files that define initialized data
 444    must include config.h to pick up this pragma.  */
 445
 446 /* Names must be < 8 bytes.  */
 447 #ifdef _MSC_VER
 448 #pragma data_seg("EMDATA")
 449 #pragma bss_seg("EMBSS")
 450 #endif
 451
 452 /* #define FULL_DEBUG */
 453 /* #define EMACSDEBUG */
 454
 455 #ifdef EMACSDEBUG
 456 extern void _DebPrint (const char *fmt, ...);
 457 #define DebPrint(stuff) _DebPrint stuff
 458 #else
 459 #define DebPrint(stuff)
 460 #endif
 461
 462 #ifdef _MSC_VER
 463 #if _MSC_VER >= 800 && !defined(__cplusplus)
 464 /* Unnamed type definition in parentheses.
 465    A structure, union, or enumerated type with no name is defined in a
 466    parenthetical expression.  The type definition is meaningless.  */
 467 #pragma warning(disable:4116)
 468 /* 'argument' : conversion from 'type1' to 'type2', possible loss of
 469    data A floating point type was converted to an integer type.  A
 470    possible loss of data may have occurred.  */
 471 #pragma warning(disable:4244)
 472 /* Negative integral constant converted to unsigned type.
 473    An expression converts a negative integer constant to an unsigned type.
 474    The result of the expression is probably meaningless.  */
 475 #pragma warning(disable:4308)
 476 #endif
 477 #endif
 478 #define TERM_HEADER "w32term.h"
 479
 480
 481 /* ============================================================ */