nt/inc/ms-w32.h

   1 /* System description file for Windows NT.
   2
   3 Copyright (C) 1993-1995, 2001-2013 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 wait    sys_wait
 189 #define kill    sys_kill
 190 #define signal  sys_signal
 191
 192 /* Internal signals.  */
 193 #define emacs_raise(sig) emacs_abort()
 194
 195 extern int sys_wait (int *);
 196
 197 /* termcap.c calls that are emulated.  */
 198 #define tputs   sys_tputs
 199 #define tgetstr sys_tgetstr
 200
 201 /* cm.c calls that are emulated.  */
 202 #define chcheckmagic sys_chcheckmagic
 203 #define cmcostinit   sys_cmcostinit
 204 #define cmgoto       sys_cmgoto
 205 #define cmputc       sys_cmputc
 206 #define Wcm_clear    sys_Wcm_clear
 207
 208 #endif /* emacs */
 209
 210 /* Map to MSVC names.  */
 211 #define execlp    _execlp
 212 #define execvp    _execvp
 213 #define fdopen    _fdopen
 214 #ifndef fileno
 215 #define fileno    _fileno
 216 #endif
 217 #define fsync     _commit
 218 #define ftruncate _chsize
 219 #define getpid    _getpid
 220 #ifdef _MSC_VER
 221 typedef int pid_t;
 222 #define snprintf  _snprintf
 223 #define strtoll   _strtoi64
 224 #endif
 225 #define isatty    _isatty
 226 #define logb      _logb
 227 #define _longjmp  longjmp
 228 #define lseek     _lseek
 229 #define popen     _popen
 230 #define pclose    _pclose
 231 #define umask     _umask
 232 #ifndef _MSC_VER
 233 #define utimbuf   _utimbuf
 234 #endif
 235 #define strdup    _strdup
 236 #define strupr    _strupr
 237 #define strnicmp  _strnicmp
 238 #define stricmp   _stricmp
 239 #define tzset     _tzset
 240
 241 /* We cannot include system header process.h, since there's src/process.h.  */
 242 int _getpid (void);
 243
 244 /* Include time.h before redirecting tzname, since MSVC's time.h
 245    defines _tzname to call a function, but also declares tzname a
 246    2-element array.  Having the redirection before including the
 247    header thus has the effect of declaring a function that returns an
 248    array, and triggers an error message.  */
 249 #include <time.h>
 250 #define tzname    _tzname
 251 #if !defined (_MSC_VER) || (_MSC_VER < 1400)
 252 #undef  utime
 253 #define utime     _utime
 254 #endif
 255
 256 /* 'struct timespec' is used by time-related functions in lib/ and
 257    elsewhere, but we don't use lib/time.h where the structure is
 258    defined.  */
 259 struct timespec
 260 {
 261   time_t        tv_sec;         /* seconds */
 262   long int      tv_nsec;        /* nanoseconds */
 263 };
 264
 265 /* Required for functions in lib/time_r.c, since we don't use lib/time.h.  */
 266 extern struct tm *gmtime_r (time_t const * restrict, struct tm * restrict);
 267 extern struct tm *localtime_r (time_t const * restrict, struct tm * restrict);
 268
 269 /* This is hacky, but is necessary to avoid warnings about macro
 270    redefinitions using the SDK compilers.  */
 271 #ifndef __STDC__
 272 #define __STDC__ 1
 273 #define MUST_UNDEF__STDC__
 274 #endif
 275 #include <direct.h>
 276 #include <io.h>
 277 #include <stdio.h>
 278 #ifdef MUST_UNDEF__STDC__
 279 #undef __STDC__
 280 #undef MUST_UNDEF__STDC__
 281 #endif
 282
 283 /* Defines that we need that aren't in the standard signal.h.  */
 284 #define SIGHUP  1               /* Hang up */
 285 #define SIGQUIT 3               /* Quit process */
 286 #define SIGTRAP 5               /* Trace trap */
 287 #define SIGKILL 9               /* Die, die die */
 288 #define SIGPIPE 13              /* Write on pipe with no readers */
 289 #define SIGALRM 14              /* Alarm */
 290 #define SIGCHLD 18              /* Death of child */
 291 #define SIGPROF 19              /* Profiling */
 292
 293 #ifndef NSIG
 294 #define NSIG 23
 295 #endif
 296
 297 #ifdef _MSC_VER
 298 typedef int sigset_t;
 299 typedef int ssize_t;
 300 #endif
 301
 302 typedef void (_CALLBACK_ *signal_handler) (int);
 303 extern signal_handler sys_signal (int, signal_handler);
 304
 305 struct sigaction {
 306   int sa_flags;
 307   void (_CALLBACK_ *sa_handler)(int);
 308   sigset_t sa_mask;
 309 };
 310 #define SA_RESTART      0
 311 #define SIG_BLOCK       1
 312 #define SIG_SETMASK     2
 313 #define SIG_UNBLOCK     3
 314
 315 extern int sigemptyset (sigset_t *);
 316 extern int sigaddset (sigset_t *, int);
 317 extern int sigfillset (sigset_t *);
 318 extern int sigprocmask (int, const sigset_t *, sigset_t *);
 319 extern int pthread_sigmask (int, const sigset_t *, sigset_t *);
 320 extern int sigismember (const sigset_t *, int);
 321 extern int setpgrp (int, int);
 322 extern int sigaction (int, const struct sigaction *, struct sigaction *);
 323 extern int alarm (int);
 324
 325 extern int sys_kill (int, int);
 326
 327
 328 /* For integration with MSDOS support.  */
 329 #define getdisk()               (_getdrive () - 1)
 330 #ifdef emacs
 331 #define getdefdir(_drv, _buf)   ((_buf[0] = (_drv + 'A' - 1), _buf[1] = ':', _buf[2] = '/', _buf[3] = 0), 1)
 332 #else
 333 #define getdefdir(_drv, _buf)   _getdcwd (_drv, _buf, MAXPATHLEN)
 334 #endif
 335
 336 extern char *get_emacs_configuration (void);
 337 extern char *get_emacs_configuration_options (void);
 338 #define EMACS_CONFIGURATION     get_emacs_configuration ()
 339 #define EMACS_CONFIG_OPTIONS    get_emacs_configuration_options ()
 340
 341 /* Define this so that winsock.h definitions don't get included with
 342    windows.h.  For this to have proper effect, config.h must always be
 343    included before windows.h.  */
 344 #define _WINSOCKAPI_    1
 345 #define _WINSOCK_H
 346
 347 /* Prevent accidental use of features unavailable in
 348    older Windows versions we still support.  */
 349 #define _WIN32_WINNT 0x0400
 350
 351 /* Make a leaner executable.  */
 352 #define WIN32_LEAN_AND_MEAN 1
 353
 354 /* Defines size_t and alloca ().  */
 355 #ifdef emacs
 356 #define malloc e_malloc
 357 #define free   e_free
 358 #define realloc e_realloc
 359 #define calloc e_calloc
 360 #endif
 361 #ifdef _MSC_VER
 362 #define alloca _alloca
 363 #else
 364 #include <malloc.h>
 365 #endif
 366
 367 #include <stdlib.h>
 368 #include <sys/stat.h>
 369
 370 /* Define for those source files that do not include enough NT system files.  */
 371 #ifndef NULL
 372 #ifdef __cplusplus
 373 #define NULL    0
 374 #else
 375 #define NULL    ((void *)0)
 376 #endif
 377 #endif
 378
 379 /* For proper declaration of environ.  */
 380 #ifndef sys_nerr
 381 #define sys_nerr _sys_nerr
 382 #endif
 383
 384 extern int getloadavg (double *, int);
 385 extern int getpagesize (void);
 386
 387 #if defined (__MINGW32__)
 388
 389 /* Define to 1 if the system has the type `long long int'. */
 390 # define HAVE_LONG_LONG_INT 1
 391
 392 /* Define to 1 if the system has the type `unsigned long long int'. */
 393 # define HAVE_UNSIGNED_LONG_LONG_INT 1
 394
 395 #endif
 396
 397 #ifdef _MSC_VER
 398 # if defined(_WIN64)
 399 typedef __int64 EMACS_INT;
 400 typedef unsigned __int64 EMACS_UINT;
 401 #  define EMACS_INT_MAX           LLONG_MAX
 402 #  define PRIuMAX                 "llu"
 403 #  define pI                      "ll"
 404 /* Fix a bug in MSVC headers : stdint.h */
 405 #  define _INTPTR 2
 406 # elif defined(_WIN32)
 407 /* Temporarily disable wider-than-pointer integers until they're tested more.
 408    Build with CFLAGS='-DWIDE_EMACS_INT' to try them out.  */
 409
 410 #  ifdef WIDE_EMACS_INT
 411
 412 /* Use pre-C99-style 64-bit integers.  */
 413 typedef __int64 EMACS_INT;
 414 typedef unsigned __int64 EMACS_UINT;
 415 #   define EMACS_INT_MAX           LLONG_MAX
 416 #   define PRIuMAX                 "llu"
 417 #   define pI                     "I64"
 418 #  else
 419 typedef int EMACS_INT;
 420 typedef unsigned int EMACS_UINT;
 421 #   define EMACS_INT_MAX           LONG_MAX
 422 #   define PRIuMAX                 "lu"
 423 #   define pI                     "l"
 424 #  endif
 425 # endif
 426 #endif
 427
 428 /* We need a little extra space, see ../../lisp/loadup.el.  */
 429 #define SYSTEM_PURESIZE_EXTRA 50000
 430
 431 #define DATA_START      get_data_start ()
 432
 433 /* For unexec to work on Alpha systems, we need to put Emacs'
 434    initialized data into a separate section from the CRT initialized
 435    data (because the Alpha linker freely reorders data variables, even
 436    across libraries, so our data and the CRT data get intermingled).
 437
 438    Starting with MSVC 5.0, we must also place the uninitialized data
 439    into its own section.  VC5 intermingles uninitialized data from the CRT
 440    between Emacs' static uninitialized data and its public uninitialized
 441    data.  A separate .bss section for Emacs groups both static and
 442    public uninitialized together.
 443
 444    Note that unexw32.c relies on this fact, and must be modified
 445    accordingly if this section name is changed, or if this pragma is
 446    removed.  Also, obviously, all files that define initialized data
 447    must include config.h to pick up this pragma.  */
 448
 449 /* Names must be < 8 bytes.  */
 450 #ifdef _MSC_VER
 451 #pragma data_seg("EMDATA")
 452 #pragma bss_seg("EMBSS")
 453 #endif
 454
 455 /* #define FULL_DEBUG */
 456 /* #define EMACSDEBUG */
 457
 458 #ifdef EMACSDEBUG
 459 extern void _DebPrint (const char *fmt, ...);
 460 #define DebPrint(stuff) _DebPrint stuff
 461 #else
 462 #define DebPrint(stuff)
 463 #endif
 464
 465 #ifdef _MSC_VER
 466 #if _MSC_VER >= 800 && !defined(__cplusplus)
 467 /* Unnamed type definition in parentheses.
 468    A structure, union, or enumerated type with no name is defined in a
 469    parenthetical expression.  The type definition is meaningless.  */
 470 #pragma warning(disable:4116)
 471 /* 'argument' : conversion from 'type1' to 'type2', possible loss of
 472    data A floating point type was converted to an integer type.  A
 473    possible loss of data may have occurred.  */
 474 #pragma warning(disable:4244)
 475 /* Negative integral constant converted to unsigned type.
 476    An expression converts a negative integer constant to an unsigned type.
 477    The result of the expression is probably meaningless.  */
 478 #pragma warning(disable:4308)
 479 #endif
 480 #endif
 481 #define TERM_HEADER "w32term.h"
 482
 483
 484 /* ============================================================ */