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 #ifndef DOS_NT
  27 #define DOS_NT  /* MSDOS or WINDOWSNT */
  28 #endif
  29
  30 /* #undef const */
  31
  32 /* If you are compiling with a non-C calling convention but need to
  33    declare vararg routines differently, put it here.  */
  34 #define _VARARGS_ __cdecl
  35
  36 /* If you are providing a function to something that will call the
  37    function back (like a signal handler and signal, or main) its calling
  38    convention must be whatever standard the libraries expect.  */
  39 #define _CALLBACK_ __cdecl
  40
  41 /* Define HAVE_TIMEVAL if the system supports the BSD style clock values.
  42    Look in <sys/time.h> for a timeval structure.  */
  43 #define HAVE_TIMEVAL 1
  44
  45 /* But our select implementation doesn't allow us to make non-blocking
  46    connects.  So until that is fixed, this is necessary:  */
  47 #define BROKEN_NON_BLOCKING_CONNECT 1
  48
  49 /* And the select implementation does 1-byte read-ahead waiting
  50    for received packets, so datagrams are broken too.  */
  51 #define BROKEN_DATAGRAM_SOCKETS 1
  52
  53 #define MAIL_USE_SYSTEM_LOCK 1
  54
  55 /* Define to 1 if GCC-style __attribute__ ((__aligned__ (expr))) works. */
  56 #ifdef __GNUC__
  57 #define HAVE_ATTRIBUTE_ALIGNED 1
  58 #endif
  59
  60 /* Define to 1 if strtold conforms to C99. */
  61 #ifdef __GNUC__
  62 #define HAVE_C99_STRTOLD 1
  63 #endif
  64
  65 #if (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
  66 #define HAVE___BUILTIN_UNWIND_INIT 1
  67 #endif
  68
  69 /* ============================================================ */
  70
  71 /* Here, add any special hacks needed to make Emacs work on this
  72    system.  For example, you might define certain system call names
  73    that don't exist on your system, or that do different things on
  74    your system and must be used only through an encapsulation (which
  75    you should place, by convention, in sysdep.c).  */
  76
  77 #ifdef __GNUC__
  78 #ifndef __cplusplus
  79 #undef inline
  80 #endif
  81 #else  /* MSVC */
  82 #define inline __inline
  83 #endif
  84
  85 #ifdef __GNUC__
  86 # define restrict __restrict__
  87 #else
  88 # define restrict
  89 #endif
  90
  91 /* `mode_t' is not defined for MSVC. Define. */
  92 #ifdef _MSC_VER
  93 typedef unsigned short mode_t;
  94 #endif
  95
  96 /* A va_copy replacement for MSVC.  */
  97 #ifdef _MSC_VER
  98 # ifdef _WIN64
  99 #  ifndef va_copy               /* Need to be checked (?) */
 100 #   define va_copy(d,s) ((d) = (s))
 101 #  endif
 102 # else  /* not _WIN64 */
 103 #  define va_copy(d,s) ((d) = (s))
 104 # endif  /* not _WIN64 */
 105 #endif   /* _MSC_VER */
 106
 107 #ifndef WINDOWSNT
 108 /* Some of the files of Emacs which are intended for use with other
 109    programs assume that if you have a config.h file, you must declare
 110    the type of getenv.  */
 111 extern char *getenv ();
 112 #endif
 113
 114 #ifdef HAVE_STRINGS_H
 115 #include "strings.h"
 116 #endif
 117 #include <sys/types.h>
 118
 119 #ifdef _MSC_VER
 120 typedef unsigned long sigset_t;
 121 typedef int ssize_t;
 122 #endif
 123
 124 struct sigaction {
 125   int sa_flags;
 126   void (*sa_handler)(int);
 127   sigset_t sa_mask;
 128 };
 129 #define SIG_BLOCK       1
 130 #define SIG_SETMASK     2
 131 #define SIG_UNBLOCK     3
 132
 133 #ifndef MAXPATHLEN
 134 #define MAXPATHLEN      _MAX_PATH
 135 #endif
 136
 137 #ifdef HAVE_NTGUI
 138 #define HAVE_WINDOW_SYSTEM 1
 139 #define HAVE_MENUS 1
 140 #endif
 141
 142 /* Get some redefinitions in place.  */
 143
 144 #ifdef emacs
 145
 146 #ifdef _MSC_VER
 147 #include <sys/timeb.h>
 148 #include <sys/stat.h>
 149 #include <signal.h>
 150
 151 /* MSVC gets link-time errors without these redirections.  */
 152 #define fstat(a, b) sys_fstat(a, b)
 153 #define stat(a, b)  sys_stat(a, b)
 154 #define utime       sys_utime
 155 #endif
 156
 157 /* Calls that are emulated or shadowed.  */
 158 #undef access
 159 #define access  sys_access
 160 #undef chdir
 161 #define chdir   sys_chdir
 162 #undef chmod
 163 #define chmod   sys_chmod
 164 #define chown   sys_chown
 165 #undef close
 166 #define close   sys_close
 167 #undef creat
 168 #define creat   sys_creat
 169 #define ctime   sys_ctime
 170 #undef dup
 171 #define dup     sys_dup
 172 #undef dup2
 173 #define dup2    sys_dup2
 174 #define fopen   sys_fopen
 175 #define link    sys_link
 176 #define localtime sys_localtime
 177 #define mkdir   sys_mkdir
 178 #undef mktemp
 179 #define mktemp  sys_mktemp
 180 #undef open
 181 #define open    sys_open
 182 #define pipe    sys_pipe
 183 #undef read
 184 #define read    sys_read
 185 #define rename  sys_rename
 186 #define rmdir   sys_rmdir
 187 #define select  sys_select
 188 #define pselect sys_select
 189 #define sleep   sys_sleep
 190 #define strerror sys_strerror
 191 #undef unlink
 192 #define unlink  sys_unlink
 193 #undef write
 194 #define write   sys_write
 195
 196 /* Subprocess calls that are emulated.  */
 197 #define spawnve sys_spawnve
 198 #define wait    sys_wait
 199 #define kill    sys_kill
 200 #define signal  sys_signal
 201
 202 /* termcap.c calls that are emulated.  */
 203 #define tputs   sys_tputs
 204 #define tgetstr sys_tgetstr
 205
 206 /* cm.c calls that are emulated.  */
 207 #define chcheckmagic sys_chcheckmagic
 208 #define cmcostinit   sys_cmcostinit
 209 #define cmgoto       sys_cmgoto
 210 #define cmputc       sys_cmputc
 211 #define Wcm_clear    sys_Wcm_clear
 212
 213 #endif /* emacs */
 214
 215 /* Map to MSVC names.  */
 216 #define execlp    _execlp
 217 #define execvp    _execvp
 218 #define fdopen    _fdopen
 219 #ifndef fileno
 220 #define fileno    _fileno
 221 #endif
 222 #define fsync     _commit
 223 #define ftruncate _chsize
 224 #define getpid    _getpid
 225 #ifdef _MSC_VER
 226 typedef int pid_t;
 227 #define snprintf  _snprintf
 228 #define strtoll   _strtoi64
 229 #endif
 230 #define isatty    _isatty
 231 #define logb      _logb
 232 #define _longjmp  longjmp
 233 #define lseek     _lseek
 234 #define popen     _popen
 235 #define pclose    _pclose
 236 #define umask     _umask
 237 #ifndef _MSC_VER
 238 #define utimbuf   _utimbuf
 239 #endif
 240 #define strdup    _strdup
 241 #define strupr    _strupr
 242 #define strnicmp  _strnicmp
 243 #define stricmp   _stricmp
 244 #define tzset     _tzset
 245
 246 /* Include time.h before redirecting tzname, since MSVC's time.h
 247    defines _tzname to call a function, but also declares tzname a
 248    2-element array.  Having the redirection before including the
 249    header thus has the effect of declaring a function that returns an
 250    array, and triggers an error message.  */
 251 #include <time.h>
 252 #define tzname    _tzname
 253 #if !defined (_MSC_VER) || (_MSC_VER < 1400)
 254 #undef  utime
 255 #define utime     _utime
 256 #endif
 257
 258 /* 'struct timespec' is used by time-related functions in lib/ and
 259    elsewhere, but we don't use lib/time.h where the structure is
 260    defined.  */
 261 struct timespec
 262 {
 263   time_t        tv_sec;         /* seconds */
 264   long int      tv_nsec;        /* nanoseconds */
 265 };
 266
 267 /* This is hacky, but is necessary to avoid warnings about macro
 268    redefinitions using the SDK compilers.  */
 269 #ifndef __STDC__
 270 #define __STDC__ 1
 271 #define MUST_UNDEF__STDC__
 272 #endif
 273 #include <direct.h>
 274 #include <io.h>
 275 #include <stdio.h>
 276 #ifdef MUST_UNDEF__STDC__
 277 #undef __STDC__
 278 #undef MUST_UNDEF__STDC__
 279 #endif
 280
 281 /* Defines that we need that aren't in the standard signal.h.  */
 282 #define SIGHUP  1               /* Hang up */
 283 #define SIGQUIT 3               /* Quit process */
 284 #define SIGTRAP 5               /* Trace trap */
 285 #define SIGKILL 9               /* Die, die die */
 286 #define SIGPIPE 13              /* Write on pipe with no readers */
 287 #define SIGALRM 14              /* Alarm */
 288 #define SIGCHLD 18              /* Death of child */
 289
 290 #ifndef NSIG
 291 #define NSIG 23
 292 #endif
 293
 294 /* For integration with MSDOS support.  */
 295 #define getdisk()               (_getdrive () - 1)
 296 #ifdef emacs
 297 #define getdefdir(_drv, _buf)   ((_buf[0] = (_drv + 'A' - 1), _buf[1] = ':', _buf[2] = '/', _buf[3] = 0), 1)
 298 #else
 299 #define getdefdir(_drv, _buf)   _getdcwd (_drv, _buf, MAXPATHLEN)
 300 #endif
 301
 302 extern char *get_emacs_configuration (void);
 303 extern char *get_emacs_configuration_options (void);
 304 #define EMACS_CONFIGURATION     get_emacs_configuration ()
 305 #define EMACS_CONFIG_OPTIONS    get_emacs_configuration_options ()
 306
 307 /* Define this so that winsock.h definitions don't get included with
 308    windows.h.  For this to have proper effect, config.h must always be
 309    included before windows.h.  */
 310 #define _WINSOCKAPI_    1
 311 #define _WINSOCK_H
 312
 313 /* Prevent accidental use of features unavailable in
 314    older Windows versions we still support.  */
 315 #define _WIN32_WINNT 0x0400
 316
 317 /* Make a leaner executable.  */
 318 #define WIN32_LEAN_AND_MEAN 1
 319
 320 /* Defines size_t and alloca ().  */
 321 #ifdef emacs
 322 #define malloc e_malloc
 323 #define free   e_free
 324 #define realloc e_realloc
 325 #define calloc e_calloc
 326 #endif
 327 #ifdef _MSC_VER
 328 #define alloca _alloca
 329 #else
 330 #include <malloc.h>
 331 #endif
 332
 333 /* stdlib.h must be included after redefining malloc & friends, but
 334    before redefining abort.  Isn't library redefinition funny?  */
 335 #include <stdlib.h>
 336
 337 /* Redefine abort.  */
 338 #ifdef HAVE_NTGUI
 339 #define abort   w32_abort
 340 extern _Noreturn void w32_abort (void);
 341 #endif
 342
 343 #include <sys/stat.h>
 344
 345 /* Define for those source files that do not include enough NT system files.  */
 346 #ifndef NULL
 347 #ifdef __cplusplus
 348 #define NULL    0
 349 #else
 350 #define NULL    ((void *)0)
 351 #endif
 352 #endif
 353
 354 /* For proper declaration of environ.  */
 355 #ifndef sys_nerr
 356 #define sys_nerr _sys_nerr
 357 #endif
 358
 359 extern int getloadavg (double *, int);
 360
 361 #if defined (__MINGW32__) || _MSC_VER >= 1400
 362
 363 /* Define to 1 if the system has the type `long long int'. */
 364 # define HAVE_LONG_LONG_INT 1
 365
 366 /* Define to 1 if the system has the type `unsigned long long int'. */
 367 # define HAVE_UNSIGNED_LONG_LONG_INT 1
 368
 369 #elif _MSC_VER >= 1200
 370
 371 /* Temporarily disable wider-than-pointer integers until they're tested more.
 372    Build with CFLAGS='-DWIDE_EMACS_INT' to try them out.  */
 373
 374 # ifdef WIDE_EMACS_INT
 375
 376 /* Use pre-C99-style 64-bit integers.  */
 377 typedef __int64 EMACS_INT;
 378 typedef unsigned __int64 EMACS_UINT;
 379 # define EMACS_INT_MAX _I64_MAX
 380 # define pI "I64"
 381
 382 # endif
 383
 384 #endif
 385
 386 /* We need a little extra space, see ../../lisp/loadup.el.  */
 387 #define SYSTEM_PURESIZE_EXTRA 50000
 388
 389 #define DATA_START      get_data_start ()
 390
 391 /* For unexec to work on Alpha systems, we need to put Emacs'
 392    initialized data into a separate section from the CRT initialized
 393    data (because the Alpha linker freely reorders data variables, even
 394    across libraries, so our data and the CRT data get intermingled).
 395
 396    Starting with MSVC 5.0, we must also place the uninitialized data
 397    into its own section.  VC5 intermingles uninitialized data from the CRT
 398    between Emacs' static uninitialized data and its public uninitialized
 399    data.  A separate .bss section for Emacs groups both static and
 400    public uninitialized together.
 401
 402    Note that unexw32.c relies on this fact, and must be modified
 403    accordingly if this section name is changed, or if this pragma is
 404    removed.  Also, obviously, all files that define initialized data
 405    must include config.h to pick up this pragma.  */
 406
 407 /* Names must be < 8 bytes.  */
 408 #ifdef _MSC_VER
 409 #pragma data_seg("EMDATA")
 410 #pragma bss_seg("EMBSS")
 411 #endif
 412
 413 /* #define FULL_DEBUG */
 414 /* #define EMACSDEBUG */
 415
 416 #ifdef EMACSDEBUG
 417 extern void _DebPrint (const char *fmt, ...);
 418 #define DebPrint(stuff) _DebPrint stuff
 419 #else
 420 #define DebPrint(stuff)
 421 #endif
 422
 423 /* ============================================================ */