freebsd.h 7.17 KB
Newer Older
Gerd Moellmann's avatar
Gerd Moellmann committed
1 2 3
/* System description header for FreeBSD systems.
   This file describes the parameters that system description files
   should define or not.
4
   Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
Glenn Morris's avatar
Glenn Morris committed
5 6
                 2003, 2004, 2005, 2006, 2007, 2008
                 Free Software Foundation, Inc.
Gerd Moellmann's avatar
Gerd Moellmann committed
7 8 9

This file is part of GNU Emacs.

10
GNU Emacs is free software: you can redistribute it and/or modify
Gerd Moellmann's avatar
Gerd Moellmann committed
11
it under the terms of the GNU General Public License as published by
12 13
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Gerd Moellmann's avatar
Gerd Moellmann committed
14 15 16 17 18 19 20

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
21
along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
Karl Heuer's avatar
Karl Heuer committed
22

23 24
/* Get the correct __FreeBSD_version, even if this is before that was
   defined. */
25
#ifndef __FreeBSD_version
26 27 28 29 30 31 32
#ifndef __FreeBSD__
#define __FreeBSD_version 199401
#elif __FreeBSD__ == 1
#define __FreeBSD_version 199405
#else
#include <osreldate.h>
#endif
33
#endif /* !defined __FreeBSD_version */
34

35
/* '__FreeBSD__' is defined by the preprocessor on FreeBSD-1.1 and up.
36 37 38
   Earlier versions do not have shared libraries, so inhibit them.
   You can inhibit them on newer systems if you wish
   by defining NO_SHARED_LIBS.  */
39 40 41
#ifndef __FreeBSD__
#define NO_SHARED_LIBS
#endif
Karl Heuer's avatar
Karl Heuer committed
42

43 44 45

#if 0 /* This much, alone, seemed sufficient as of 19.23.
	 But it seems better to be independent of netbsd.h.  */
46
#include "netbsd.h"
Karl Heuer's avatar
Karl Heuer committed
47

48 49 50
#undef LIB_GCC
#define LIB_GCC -lgcc
#undef NEED_ERRNO
51 52 53 54 55 56 57 58 59
#endif /* 0 */


/* Get most of the stuff from bsd4.3 */
#include "bsd4-3.h"

/* For mem-limits.h. */
#define BSD4_2

60
/* These aren't needed, since we have getloadavg.  */
61 62 63 64 65 66 67
#undef KERNEL_FILE
#undef LDAV_SYMBOL

#define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)

#define LIBS_DEBUG
#define LIBS_SYSTEM -lutil
Gerd Moellmann's avatar
Gerd Moellmann committed
68
#if __FreeBSD_version < 400000
69
#define LIBS_TERMCAP -ltermcap
70 71 72
#else
#define TERMINFO
#define LIBS_TERMCAP -lncurses
Gerd Moellmann's avatar
Gerd Moellmann committed
73
#endif
74 75 76 77 78

#define SYSV_SYSTEM_DIR

/* freebsd has POSIX-style pgrp behavior. */
#undef BSD_PGRPS
79
#define GETPGRP_NO_ARG
80

81 82
#ifdef __ELF__

83
#define LD_SWITCH_SYSTEM_1
84 85 86 87 88 89 90 91
#define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o
#define UNEXEC unexelf.o
#define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtend.o /usr/lib/crtn.o
#undef LIB_GCC
#define LIB_GCC

#else /* not __ELF__ */

92
#ifndef NO_SHARED_LIBS
93
#define LD_SWITCH_SYSTEM_1 -e start -dc -L/usr/local/lib
94
#define HAVE_TEXT_START		/* No need to define `start_of_text'. */
95 96 97
#if __FreeBSD_version >= 300002
#define START_FILES pre-crt0.o /usr/lib/aout/crt0.o
#else /* __FreeBSD_version < 300002 */
98
#define START_FILES pre-crt0.o /usr/lib/crt0.o
99
#endif /* __FreeBSD_version < 300002 */
100 101
#define UNEXEC unexsunos4.o
#define RUN_TIME_REMAP
102
#define LIB_GCC -lgcc
103 104 105 106 107 108

#ifndef N_TRELOFF
#define N_PAGSIZ(x) __LDPGSZ
#define N_BSSADDR(x) (N_ALIGN(x, N_DATADDR(x)+x.a_data))
#define N_TRELOFF(x) N_RELOFF(x)
#endif
109 110 111
#else /* NO_SHARED_LIBS */
#ifdef __FreeBSD__  /* shared libs are available, but the user prefers
                     not to use them.  */
112
#define LD_SWITCH_SYSTEM_1 -Bstatic -L/usr/local/lib
113 114 115 116
#define A_TEXT_OFFSET(x) (sizeof (struct exec))
#define A_TEXT_SEEK(hdr) (N_TXTOFF(hdr) + A_TEXT_OFFSET(hdr))
#endif /* __FreeBSD__ */
#endif /* NO_SHARED_LIBS */
117

118 119
#endif /* not __ELF__ */

120 121 122 123 124 125
/* Let `ld' find image libs and similar things in /usr/local/lib.  The
   system compiler, GCC, has apparently been modified to not look
   there, contrary to what a stock GCC would do.  */

#define LD_SWITCH_SYSTEM LD_SWITCH_SYSTEM_1 -L/usr/local/lib

126
#define HAVE_WAIT_HEADER
Dave Love's avatar
Dave Love committed
127
#define HAVE_GETLOADAVG 1
Gerd Moellmann's avatar
Gerd Moellmann committed
128 129 130
#if 0
#define HAVE_GETPAGESIZE  /* configure now puts this in config.h */
#endif
131 132
#define HAVE_TERMIOS
#define NO_TERMIO
133
#define DECLARE_GETPWUID_WITH_UID_T
134 135 136 137 138 139

/* freebsd uses OXTABS instead of the expected TAB3. */
#define TABDLY OXTABS
#define TAB3 OXTABS

/* this silences a few compilation warnings */
140
#undef BSD_SYSTEM
141
#if __FreeBSD__ == 1
142
#define BSD_SYSTEM 199103
143
#elif __FreeBSD__ == 2
144
#define BSD_SYSTEM 199306
145
#elif __FreeBSD__ >= 3
146
#define BSD_SYSTEM 199506
147
#endif
148

149
#if 0  /* Shouldn't be necessary and produces warnings with the
150
          experimental Autoconf test.  */
151 152 153 154 155 156
#define WAITTYPE int
/* get this since it won't be included if WAITTYPE is defined */
#ifdef emacs
#include <sys/wait.h>
#endif
#define WRETCODE(w) (_W_INT(w) >> 8)
157
#endif
Richard M. Stallman's avatar
Richard M. Stallman committed
158

159 160 161 162
/* Don't close pty in process.c to make it as controlling terminal.
   It is already a controlling terminal of subprocess, because we did
   ioctl TIOCSCTTY.  */
#define DONT_REOPEN_PTY
Richard M. Stallman's avatar
Richard M. Stallman committed
163 164 165 166 167 168

/* CLASH_DETECTION is defined in bsd4-3.h.
   In FreeBSD 2.1.5 (and other 2.1.x), this results useless symbolic links
   remaining in /tmp or other directories with +t bit.
   To avoid this problem, you could #undef it to use no file lock. */
/* #undef CLASH_DETECTION */
Gerd Moellmann's avatar
Gerd Moellmann committed
169 170 171

/* If the system's imake configuration file defines `NeedWidePrototypes'
   as `NO', we must define NARROWPROTO manually.  Such a define is
172
   generated in the Makefile generated by `xmkmf'.  If we don't
Gerd Moellmann's avatar
Gerd Moellmann committed
173 174 175 176
   define NARROWPROTO, we will see the wrong function prototypes
   for X functions taking float or double parameters.  */

#define NARROWPROTO 1
177

178 179 180 181
/* The following is needed to make `configure' find Xpm, Xaw3d and
   image include and library files if using /usr/bin/gcc.  That
   compiler seems to be modified to not find headers in
   /usr/local/include or libs in /usr/local/lib by default.  */
182

183
#define C_SWITCH_SYSTEM -I/usr/X11R6/include -I/usr/local/include -L/usr/local/lib
184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199

/* Circumvent a bug in FreeBSD.  In the following sequence of
   writes/reads on a PTY, read(2) returns bogus data:

   write(2)  1022 bytes
   write(2)   954 bytes, get EAGAIN
   read(2)   1024 bytes in process_read_output
   read(2)     11 bytes in process_read_output

   That is, read(2) returns more bytes than have ever been written
   successfully.  The 1033 bytes read are the 1022 bytes written
   successfully after processing (for example with CRs added if the
   terminal is set up that way which it is here).  The same bytes will
   be seen again in a later read(2), without the CRs.  */

#define BROKEN_PTY_READ_AFTER_EAGAIN 1
Gerd Moellmann's avatar
Gerd Moellmann committed
200 201 202 203 204 205

/* Tell that garbage collector that setjmp is known to save all
   registers relevant for conservative garbage collection in the
   jmp_buf.  */

#define GC_SETJMP_WORKS 1
206

207 208 209
/* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method for marking the
   stack.  */

210
#define GC_MARK_STACK 	GC_MAKE_GCPROS_NOOPS
211

212 213
/* Define USE_MMAP_FOR_BUFFERS to let Emacs use mmap(2) to allocate
   buffer text.  This overrides REL_ALLOC.  */
214

215
#define USE_MMAP_FOR_BUFFERS	1
Gerd Moellmann's avatar
Gerd Moellmann committed
216 217 218 219 220

/* Use sigprocmask(2) and friends instead of sigblock(2); the man page
   of sigblock says it is obsolete.  */

#define POSIX_SIGNALS		1
Miles Bader's avatar
Miles Bader committed
221

Gerd Moellmann's avatar
Gerd Moellmann committed
222 223 224 225 226 227 228 229
/* The `combreloc' setting became the default, and it seems to be
   incompatible with unexec.  Symptom is an immediate SEGV in
   XtInitializeWidget when starting Emacs under X11.  */

#if defined __FreeBSD_version && __FreeBSD_version >= 500042
#define LD_SWITCH_SYSTEM_TEMACS -znocombreloc
#endif

Miles Bader's avatar
Miles Bader committed
230 231
/* arch-tag: 426529ca-b7c4-448f-b10a-d4dcdc9c78eb
   (do not change this comment) */