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 #ifdef _MSC_VER
 124 typedef unsigned long sigset_t;
 125 typedef int ssize_t;
 126 #endif
 127
 128 struct sigaction {
 129   int sa_flags;
 130   void (*sa_handler)(int);
 131   sigset_t sa_mask;
 132 };
 133 #define SIG_BLOCK       1
 134 #define SIG_SETMASK     2
 135 #define SIG_UNBLOCK     3
 136
 137 #ifndef MAXPATHLEN
 138 #define MAXPATHLEN      _MAX_PATH
 139 #endif
 140
 141 #ifdef HAVE_NTGUI
 142 #define HAVE_WINDOW_SYSTEM 1
 143 #define HAVE_MENUS 1
 144 #endif
 145
 146 /* Get some redefinitions in place.  */
 147
 148 #ifdef emacs
 149
 150 #ifdef _MSC_VER
 151 #include <sys/timeb.h>
 152 #include <sys/stat.h>
 153 #include <signal.h>
 154
 155 /* MSVC gets link-time errors without these redirections.  */
 156 #define fstat(a, b) sys_fstat(a, b)
 157 #define stat(a, b)  sys_stat(a, b)
 158 #define utime       sys_utime
 159 #endif
 160
 161 /* Calls that are emulated or shadowed.  */
 162 #undef access
 163 #define access  sys_access
 164 #undef chdir
 165 #define chdir   sys_chdir
 166 #undef chmod
 167 #define chmod   sys_chmod
 168 #define chown   sys_chown
 169 #undef close
 170 #define close   sys_close
 171 #undef creat
 172 #define creat   sys_creat
 173 #define ctime   sys_ctime
 174 #undef dup
 175 #define dup     sys_dup
 176 #undef dup2
 177 #define dup2    sys_dup2
 178 #define fopen   sys_fopen
 179 #define link    sys_link
 180 #define localtime sys_localtime
 181 #define mkdir   sys_mkdir
 182 #undef mktemp
 183 #define mktemp  sys_mktemp
 184 #undef open
 185 #define open    sys_open
 186 #define pipe    sys_pipe
 187 #undef read
 188 #define read    sys_read
 189 #define rename  sys_rename
 190 #define rmdir   sys_rmdir
 191 #define select  sys_select
 192 #define pselect sys_select
 193 #define sleep   sys_sleep
 194 #define strerror sys_strerror
 195 #undef unlink
 196 #define unlink  sys_unlink
 197 #undef write
 198 #define write   sys_write
 199
 200 /* Subprocess calls that are emulated.  */
 201 #define spawnve sys_spawnve
 202 #define wait    sys_wait
 203 #define kill    sys_kill
 204 #define signal  sys_signal
 205
 206 /* termcap.c calls that are emulated.  */
 207 #define tputs   sys_tputs
 208 #define tgetstr sys_tgetstr
 209
 210 /* cm.c calls that are emulated.  */
 211 #define chcheckmagic sys_chcheckmagic
 212 #define cmcostinit   sys_cmcostinit
 213 #define cmgoto       sys_cmgoto
 214 #define cmputc       sys_cmputc
 215 #define Wcm_clear    sys_Wcm_clear
 216
 217 #endif /* emacs */
 218
 219 /* Map to MSVC names.  */
 220 #define execlp    _execlp
 221 #define execvp    _execvp
 222 #define fdopen    _fdopen
 223 #ifndef fileno
 224 #define fileno    _fileno
 225 #endif
 226 #define fsync     _commit
 227 #define ftruncate _chsize
 228 #define getpid    _getpid
 229 #ifdef _MSC_VER
 230 typedef int pid_t;
 231 #define snprintf  _snprintf
 232 #define strtoll   _strtoi64
 233 #endif
 234 #define isatty    _isatty
 235 #define logb      _logb
 236 #define _longjmp  longjmp
 237 #define lseek     _lseek
 238 #define popen     _popen
 239 #define pclose    _pclose
 240 #define umask     _umask
 241 #ifndef _MSC_VER
 242 #define utimbuf   _utimbuf
 243 #endif
 244 #define strdup    _strdup
 245 #define strupr    _strupr
 246 #define strnicmp  _strnicmp
 247 #define stricmp   _stricmp
 248 #define tzset     _tzset
 249
 250 /* Include time.h before redirecting tzname, since MSVC's time.h
 251    defines _tzname to call a function, but also declares tzname a
 252    2-element array.  Having the redirection before including the
 253    header thus has the effect of declaring a function that returns an
 254    array, and triggers an error message.  */
 255 #include <time.h>
 256 #define tzname    _tzname
 257 #if !defined (_MSC_VER) || (_MSC_VER < 1400)
 258 #undef  utime
 259 #define utime     _utime
 260 #endif
 261
 262 /* 'struct timespec' is used by time-related functions in lib/ and
 263    elsewhere, but we don't use lib/time.h where the structure is
 264    defined.  */
 265 struct timespec
 266 {
 267   time_t        tv_sec;         /* seconds */
 268   long int      tv_nsec;        /* nanoseconds */
 269 };
 270
 271 /* This is hacky, but is necessary to avoid warnings about macro
 272    redefinitions using the SDK compilers.  */
 273 #ifndef __STDC__
 274 #define __STDC__ 1
 275 #define MUST_UNDEF__STDC__
 276 #endif
 277 #include <direct.h>
 278 #include <io.h>
 279 #include <stdio.h>
 280 #ifdef MUST_UNDEF__STDC__
 281 #undef __STDC__
 282 #undef MUST_UNDEF__STDC__
 283 #endif
 284
 285 /* Defines that we need that aren't in the standard signal.h.  */
 286 #define SIGHUP  1               /* Hang up */
 287 #define SIGQUIT 3               /* Quit process */
 288 #define SIGTRAP 5               /* Trace trap */
 289 #define SIGKILL 9               /* Die, die die */
 290 #define SIGPIPE 13              /* Write on pipe with no readers */
 291 #define SIGALRM 14              /* Alarm */
 292 #define SIGCHLD 18              /* Death of child */
 293
 294 #ifndef NSIG
 295 #define NSIG 23
 296 #endif
 297
 298 /* For integration with MSDOS support.  */
 299 #define getdisk()               (_getdrive () - 1)
 300 #ifdef emacs
 301 #define getdefdir(_drv, _buf)   ((_buf[0] = (_drv + 'A' - 1), _buf[1] = ':', _buf[2] = '/', _buf[3] = 0), 1)
 302 #else
 303 #define getdefdir(_drv, _buf)   _getdcwd (_drv, _buf, MAXPATHLEN)
 304 #endif
 305
 306 extern char *get_emacs_configuration (void);
 307 extern char *get_emacs_configuration_options (void);
 308 #define EMACS_CONFIGURATION     get_emacs_configuration ()
 309 #define EMACS_CONFIG_OPTIONS    get_emacs_configuration_options ()
 310
 311 /* Define this so that winsock.h definitions don't get included with
 312    windows.h.  For this to have proper effect, config.h must always be
 313    included before windows.h.  */
 314 #define _WINSOCKAPI_    1
 315 #define _WINSOCK_H
 316
 317 /* Prevent accidental use of features unavailable in
 318    older Windows versions we still support.  */
 319 #define _WIN32_WINNT 0x0400
 320
 321 /* Make a leaner executable.  */
 322 #define WIN32_LEAN_AND_MEAN 1
 323
 324 /* Defines size_t and alloca ().  */
 325 #ifdef emacs
 326 #define malloc e_malloc
 327 #define free   e_free
 328 #define realloc e_realloc
 329 #define calloc e_calloc
 330 #endif
 331 #ifdef _MSC_VER
 332 #define alloca _alloca
 333 #else
 334 #include <malloc.h>
 335 #endif
 336
 337 /* stdlib.h must be included after redefining malloc & friends, but
 338    before redefining abort.  Isn't library redefinition funny?  */
 339 #include <stdlib.h>
 340
 341 /* Redefine abort.  */
 342 #ifdef HAVE_NTGUI
 343 #define abort   w32_abort
 344 extern _Noreturn void w32_abort (void);
 345 #endif
 346
 347 #include <sys/stat.h>
 348
 349 /* Define for those source files that do not include enough NT system files.  */
 350 #ifndef NULL
 351 #ifdef __cplusplus
 352 #define NULL    0
 353 #else
 354 #define NULL    ((void *)0)
 355 #endif
 356 #endif
 357
 358 /* For proper declaration of environ.  */
 359 #ifndef sys_nerr
 360 #define sys_nerr _sys_nerr
 361 #endif
 362
 363 extern int getloadavg (double *, int);
 364
 365 #if defined (__MINGW32__) || _MSC_VER >= 1400
 366
 367 /* Define to 1 if the system has the type `long long int'. */
 368 # define HAVE_LONG_LONG_INT 1
 369
 370 /* Define to 1 if the system has the type `unsigned long long int'. */
 371 # define HAVE_UNSIGNED_LONG_LONG_INT 1
 372
 373 #elif _MSC_VER >= 1200
 374
 375 /* Temporarily disable wider-than-pointer integers until they're tested more.
 376    Build with CFLAGS='-DWIDE_EMACS_INT' to try them out.  */
 377
 378 # ifdef WIDE_EMACS_INT
 379
 380 /* Use pre-C99-style 64-bit integers.  */
 381 typedef __int64 EMACS_INT;
 382 typedef unsigned __int64 EMACS_UINT;
 383 # define EMACS_INT_MAX _I64_MAX
 384 # define pI "I64"
 385
 386 # endif
 387
 388 #endif
 389
 390 /* We need a little extra space, see ../../lisp/loadup.el.  */
 391 #define SYSTEM_PURESIZE_EXTRA 50000
 392
 393 #define DATA_START      get_data_start ()
 394
 395 /* For unexec to work on Alpha systems, we need to put Emacs'
 396    initialized data into a separate section from the CRT initialized
 397    data (because the Alpha linker freely reorders data variables, even
 398    across libraries, so our data and the CRT data get intermingled).
 399
 400    Starting with MSVC 5.0, we must also place the uninitialized data
 401    into its own section.  VC5 intermingles uninitialized data from the CRT
 402    between Emacs' static uninitialized data and its public uninitialized
 403    data.  A separate .bss section for Emacs groups both static and
 404    public uninitialized together.
 405
 406    Note that unexw32.c relies on this fact, and must be modified
 407    accordingly if this section name is changed, or if this pragma is
 408    removed.  Also, obviously, all files that define initialized data
 409    must include config.h to pick up this pragma.  */
 410
 411 /* Names must be < 8 bytes.  */
 412 #ifdef _MSC_VER
 413 #pragma data_seg("EMDATA")
 414 #pragma bss_seg("EMBSS")
 415 #endif
 416
 417 /* #define FULL_DEBUG */
 418 /* #define EMACSDEBUG */
 419
 420 #ifdef EMACSDEBUG
 421 extern void _DebPrint (const char *fmt, ...);
 422 #define DebPrint(stuff) _DebPrint stuff
 423 #else
 424 #define DebPrint(stuff)
 425 #endif
 426
 427 #define TERM_HEADER "w32term.h"
 428
 429
 430 /* ============================================================ */