code.delx.au - gnu-emacs/blob - src/s/freebsd.h

   1 /* s/ file for freebsd system.  */
   2
   3 /* Get the correct __FreeBSD_version, even if this is before that was
   4    defined. */
   5 #ifndef __FreeBSD__
   6 #define __FreeBSD_version 199401
   7 #elif __FreeBSD__ == 1
   8 #define __FreeBSD_version 199405
   9 #else
  10 #include <osreldate.h>
  11 #endif
  12
  13 /* '__FreeBSD__' is defined by the preprocessor on FreeBSD-1.1 and up.
  14    Earlier versions do not have shared libraries, so inhibit them.
  15    You can inhibit them on newer systems if you wish
  16    by defining NO_SHARED_LIBS.  */
  17 #ifndef __FreeBSD__
  18 #define NO_SHARED_LIBS
  19 #endif
  20
  21
  22 #if 0 /* This much, alone, seemed sufficient as of 19.23.
  23          But it seems better to be independent of netbsd.h.  */
  24 #include "netbsd.h"
  25
  26 #undef LIB_GCC
  27 #define LIB_GCC -lgcc
  28 #undef NEED_ERRNO
  29 #endif /* 0 */
  30
  31
  32 /* Get most of the stuff from bsd4.3 */
  33 #include "bsd4-3.h"
  34
  35 /* For mem-limits.h. */
  36 #define BSD4_2
  37
  38 /* These aren't needed, since we have getloadavg.  */
  39 #undef KERNEL_FILE
  40 #undef LDAV_SYMBOL
  41
  42 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
  43
  44 #define LIBS_DEBUG
  45 #define LIBS_SYSTEM -lutil
  46 #define LIBS_TERMCAP -ltermcap
  47
  48 #define SYSV_SYSTEM_DIR
  49
  50 /* freebsd has POSIX-style pgrp behavior. */
  51 #undef BSD_PGRPS
  52 #define GETPGRP_NO_ARG
  53
  54 #ifdef __ELF__
  55
  56 #define LD_SWITCH_SYSTEM
  57 #define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o
  58 #define UNEXEC unexelf.o
  59 #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtend.o /usr/lib/crtn.o
  60 #undef LIB_GCC
  61 #define LIB_GCC
  62
  63 #else /* not __ELF__ */
  64
  65 #ifndef NO_SHARED_LIBS
  66 #define LD_SWITCH_SYSTEM -e start -dc
  67 #define HAVE_TEXT_START         /* No need to define `start_of_text'. */
  68 #if __FreeBSD_version >= 300002
  69 #define START_FILES pre-crt0.o /usr/lib/aout/crt0.o
  70 #else /* __FreeBSD_version < 300002 */
  71 #define START_FILES pre-crt0.o /usr/lib/crt0.o
  72 #endif /* __FreeBSD_version < 300002 */
  73 #define UNEXEC unexsunos4.o
  74 #define RUN_TIME_REMAP
  75 #define LIB_GCC -lgcc
  76
  77 #ifndef N_TRELOFF
  78 #define N_PAGSIZ(x) __LDPGSZ
  79 #define N_BSSADDR(x) (N_ALIGN(x, N_DATADDR(x)+x.a_data))
  80 #define N_TRELOFF(x) N_RELOFF(x)
  81 #endif
  82 #else /* NO_SHARED_LIBS */
  83 #ifdef __FreeBSD__  /* shared libs are available, but the user prefers
  84                      not to use them.  */
  85 #define LD_SWITCH_SYSTEM -Bstatic
  86 #define A_TEXT_OFFSET(x) (sizeof (struct exec))
  87 #define A_TEXT_SEEK(hdr) (N_TXTOFF(hdr) + A_TEXT_OFFSET(hdr))
  88 #endif /* __FreeBSD__ */
  89 #endif /* NO_SHARED_LIBS */
  90
  91 #endif /* not __ELF__ */
  92
  93 #define HAVE_WAIT_HEADER
  94 #define HAVE_GETLOADAVG
  95 /*#define HAVE_GETPAGESIZE  /* configure now puts this in config.h */
  96 #define HAVE_TERMIOS
  97 #define NO_TERMIO
  98 #define DECLARE_GETPWUID_WITH_UID_T
  99
 100 /* freebsd uses OXTABS instead of the expected TAB3. */
 101 #define TABDLY OXTABS
 102 #define TAB3 OXTABS
 103
 104 /* this silences a few compilation warnings */
 105 #undef BSD_SYSTEM
 106 #if __FreeBSD__ == 1
 107 #define BSD_SYSTEM 199103
 108 #elif __FreeBSD__ == 2
 109 #define BSD_SYSTEM 199306
 110 #elif __FreeBSD__ == 3
 111 #define BSD_SYSTEM 199506
 112 #endif
 113
 114 #define WAITTYPE int
 115 /* get this since it won't be included if WAITTYPE is defined */
 116 #ifdef emacs
 117 #include <sys/wait.h>
 118 #endif
 119 #define WRETCODE(w) (_W_INT(w) >> 8)
 120
 121 /* Needed to avoid hanging when child process writes an error message
 122    and exits -- enami tsugutomo <enami@ba2.so-net.or.jp>.  */
 123 #define vfork fork
 124
 125 /* Don't close pty in process.c to make it as controlling terminal.
 126    It is already a controlling terminal of subprocess, because we did
 127    ioctl TIOCSCTTY.  */
 128 #define DONT_REOPEN_PTY
 129
 130 /* CLASH_DETECTION is defined in bsd4-3.h.
 131    In FreeBSD 2.1.5 (and other 2.1.x), this results useless symbolic links
 132    remaining in /tmp or other directories with +t bit.
 133    To avoid this problem, you could #undef it to use no file lock. */
 134 /* #undef CLASH_DETECTION */