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 chdir
 149 #define chdir   sys_chdir
 150 #undef chmod
 151 #define chmod   sys_chmod
 152 #define chown   sys_chown
 153 #undef close
 154 #define close   sys_close
 155 #undef creat
 156 #define creat   sys_creat
 157 #define ctime   sys_ctime
 158 #undef dup
 159 #define dup     sys_dup
 160 #undef dup2
 161 #define dup2    sys_dup2
 162 #define fopen   sys_fopen
 163 #define link    sys_link
 164 #define localtime sys_localtime
 165 #define mkdir   sys_mkdir
 166 #undef mktemp
 167 #define mktemp  sys_mktemp
 168 #undef open
 169 #define open    sys_open
 170 #define pipe    sys_pipe
 171 #undef read
 172 #define read    sys_read
 173 #define rename  sys_rename
 174 #define rmdir   sys_rmdir
 175 #define select  sys_select
 176 #define pselect sys_select
 177 #define sleep   sys_sleep
 178 #define strerror sys_strerror
 179 #undef unlink
 180 #define unlink  sys_unlink
 181 #undef write
 182 #define write   sys_write
 183
 184 /* Subprocess calls that are emulated.  */
 185 #define spawnve sys_spawnve
 186 #define wait    sys_wait
 187 #define kill    sys_kill
 188 #define signal  sys_signal
 189
 190 /* Internal signals.  */
 191 #define emacs_raise(sig) emacs_abort()
 192
 193 extern int sys_wait (int *);
 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 logb      _logb
 225 #define _longjmp  longjmp
 226 #define lseek     _lseek
 227 #define popen     _popen
 228 #define pclose    _pclose
 229 #define umask     _umask
 230 #ifndef _MSC_VER
 231 #define utimbuf   _utimbuf
 232 #endif
 233 #define strdup    _strdup
 234 #define strupr    _strupr
 235 #define strnicmp  _strnicmp
 236 #define stricmp   _stricmp
 237 #define tzset     _tzset
 238
 239 /* We cannot include system header process.h, since there's src/process.h.  */
 240 int _getpid (void);
 241
 242 /* Include time.h before redirecting tzname, since MSVC's time.h
 243    defines _tzname to call a function, but also declares tzname a
 244    2-element array.  Having the redirection before including the
 245    header thus has the effect of declaring a function that returns an
 246    array, and triggers an error message.  */
 247 #include <time.h>
 248 #define tzname    _tzname
 249 #if !defined (_MSC_VER) || (_MSC_VER < 1400)
 250 #undef  utime
 251 #define utime     _utime
 252 #endif
 253
 254 /* 'struct timespec' is used by time-related functions in lib/ and
 255    elsewhere, but we don't use lib/time.h where the structure is
 256    defined.  */
 257 struct timespec
 258 {
 259   time_t        tv_sec;         /* seconds */
 260   long int      tv_nsec;        /* nanoseconds */
 261 };
 262
 263 /* Required for functions in lib/time_r.c, since we don't use lib/time.h.  */
 264 extern struct tm *gmtime_r (time_t const * restrict, struct tm * restrict);
 265 extern struct tm *localtime_r (time_t const * restrict, struct tm * restrict);
 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 #define SIGPROF 19              /* Profiling */
 290
 291 #ifndef NSIG
 292 #define NSIG 23
 293 #endif
 294
 295 #ifdef _MSC_VER
 296 typedef int sigset_t;
 297 typedef int ssize_t;
 298 #endif
 299
 300 typedef void (_CALLBACK_ *signal_handler) (int);
 301 extern signal_handler sys_signal (int, signal_handler);
 302
 303 struct sigaction {
 304   int sa_flags;
 305   void (_CALLBACK_ *sa_handler)(int);
 306   sigset_t sa_mask;
 307 };
 308 #define SA_RESTART      0
 309 #define SIG_BLOCK       1
 310 #define SIG_SETMASK     2
 311 #define SIG_UNBLOCK     3
 312
 313 extern int sigemptyset (sigset_t *);
 314 extern int sigaddset (sigset_t *, int);
 315 extern int sigfillset (sigset_t *);
 316 extern int sigprocmask (int, const sigset_t *, sigset_t *);
 317 extern int pthread_sigmask (int, const sigset_t *, sigset_t *);
 318 extern int sigismember (const sigset_t *, int);
 319 extern int setpgrp (int, int);
 320 extern int sigaction (int, const struct sigaction *, struct sigaction *);
 321 extern int alarm (int);
 322
 323 extern int sys_kill (int, int);
 324
 325
 326 /* For integration with MSDOS support.  */
 327 #define getdisk()               (_getdrive () - 1)
 328 #ifdef emacs
 329 #define getdefdir(_drv, _buf)   ((_buf[0] = (_drv + 'A' - 1), _buf[1] = ':', _buf[2] = '/', _buf[3] = 0), 1)
 330 #else
 331 #define getdefdir(_drv, _buf)   _getdcwd (_drv, _buf, MAXPATHLEN)
 332 #endif
 333
 334 extern char *get_emacs_configuration (void);
 335 extern char *get_emacs_configuration_options (void);
 336 #define EMACS_CONFIGURATION     get_emacs_configuration ()
 337 #define EMACS_CONFIG_OPTIONS    get_emacs_configuration_options ()
 338
 339 /* Define this so that winsock.h definitions don't get included with
 340    windows.h.  For this to have proper effect, config.h must always be
 341    included before windows.h.  */
 342 #define _WINSOCKAPI_    1
 343 #define _WINSOCK_H
 344
 345 /* Prevent accidental use of features unavailable in
 346    older Windows versions we still support.  */
 347 #define _WIN32_WINNT 0x0400
 348
 349 /* Make a leaner executable.  */
 350 #define WIN32_LEAN_AND_MEAN 1
 351
 352 /* Defines size_t and alloca ().  */
 353 #ifdef emacs
 354 #define malloc e_malloc
 355 #define free   e_free
 356 #define realloc e_realloc
 357 #define calloc e_calloc
 358 #endif
 359 #ifdef _MSC_VER
 360 #define alloca _alloca
 361 #else
 362 #include <malloc.h>
 363 #endif
 364
 365 #include <stdlib.h>
 366 #include <sys/stat.h>
 367
 368 /* Define for those source files that do not include enough NT system files.  */
 369 #ifndef NULL
 370 #ifdef __cplusplus
 371 #define NULL    0
 372 #else
 373 #define NULL    ((void *)0)
 374 #endif
 375 #endif
 376
 377 /* For proper declaration of environ.  */
 378 #ifndef sys_nerr
 379 #define sys_nerr _sys_nerr
 380 #endif
 381
 382 extern int getloadavg (double *, int);
 383 extern int getpagesize (void);
 384
 385 #if defined (__MINGW32__)
 386
 387 /* Define to 1 if the system has the type `long long int'. */
 388 # define HAVE_LONG_LONG_INT 1
 389
 390 /* Define to 1 if the system has the type `unsigned long long int'. */
 391 # define HAVE_UNSIGNED_LONG_LONG_INT 1
 392
 393 #endif
 394
 395 #ifdef _MSC_VER
 396 # if defined(_WIN64)
 397 typedef __int64 EMACS_INT;
 398 typedef unsigned __int64 EMACS_UINT;
 399 #  define EMACS_INT_MAX           LLONG_MAX
 400 #  define PRIuMAX                 "llu"
 401 #  define pI                      "ll"
 402 /* Fix a bug in MSVC headers : stdint.h */
 403 #  define _INTPTR 2
 404 # elif defined(_WIN32)
 405 /* Temporarily disable wider-than-pointer integers until they're tested more.
 406    Build with CFLAGS='-DWIDE_EMACS_INT' to try them out.  */
 407
 408 #  ifdef WIDE_EMACS_INT
 409
 410 /* Use pre-C99-style 64-bit integers.  */
 411 typedef __int64 EMACS_INT;
 412 typedef unsigned __int64 EMACS_UINT;
 413 #   define EMACS_INT_MAX           LLONG_MAX
 414 #   define PRIuMAX                 "llu"
 415 #   define pI                     "I64"
 416 #  else
 417 typedef int EMACS_INT;
 418 typedef unsigned int EMACS_UINT;
 419 #   define EMACS_INT_MAX           LONG_MAX
 420 #   define PRIuMAX                 "lu"
 421 #   define pI                     "l"
 422 #  endif
 423 # endif
 424 #endif
 425
 426 /* We need a little extra space, see ../../lisp/loadup.el.  */
 427 #define SYSTEM_PURESIZE_EXTRA 50000
 428
 429 #define DATA_START      get_data_start ()
 430
 431 /* For unexec to work on Alpha systems, we need to put Emacs'
 432    initialized data into a separate section from the CRT initialized
 433    data (because the Alpha linker freely reorders data variables, even
 434    across libraries, so our data and the CRT data get intermingled).
 435
 436    Starting with MSVC 5.0, we must also place the uninitialized data
 437    into its own section.  VC5 intermingles uninitialized data from the CRT
 438    between Emacs' static uninitialized data and its public uninitialized
 439    data.  A separate .bss section for Emacs groups both static and
 440    public uninitialized together.
 441
 442    Note that unexw32.c relies on this fact, and must be modified
 443    accordingly if this section name is changed, or if this pragma is
 444    removed.  Also, obviously, all files that define initialized data
 445    must include config.h to pick up this pragma.  */
 446
 447 /* Names must be < 8 bytes.  */
 448 #ifdef _MSC_VER
 449 #pragma data_seg("EMDATA")
 450 #pragma bss_seg("EMBSS")
 451 #endif
 452
 453 /* #define FULL_DEBUG */
 454 /* #define EMACSDEBUG */
 455
 456 #ifdef EMACSDEBUG
 457 extern void _DebPrint (const char *fmt, ...);
 458 #define DebPrint(stuff) _DebPrint stuff
 459 #else
 460 #define DebPrint(stuff)
 461 #endif
 462
 463 #ifdef _MSC_VER
 464 #if _MSC_VER >= 800 && !defined(__cplusplus)
 465 /* Unnamed type definition in parentheses.
 466    A structure, union, or enumerated type with no name is defined in a
 467    parenthetical expression.  The type definition is meaningless.  */
 468 #pragma warning(disable:4116)
 469 /* 'argument' : conversion from 'type1' to 'type2', possible loss of
 470    data A floating point type was converted to an integer type.  A
 471    possible loss of data may have occurred.  */
 472 #pragma warning(disable:4244)
 473 /* Negative integral constant converted to unsigned type.
 474    An expression converts a negative integer constant to an unsigned type.
 475    The result of the expression is probably meaningless.  */
 476 #pragma warning(disable:4308)
 477 #endif
 478 #endif
 479 #define TERM_HEADER "w32term.h"
 480
 481
 482 /* ============================================================ */