tools-for-build/grovel_headers.c

   1 /*
   2  * Rummage through the system header files using the C compiler itself
   3  * as a parser, extracting stuff like preprocessor constants and the
   4  * sizes and signedness of basic system types, and write it out as
   5  * Lisp code.
   6  */
   7
   8 /*
   9  * This software is part of the SBCL system. See the README file for
  10  * more information.
  11  *
  12  * While most of SBCL is derived from the CMU CL system, many
  13  * utilities for the build process (like this one) were written from
  14  * scratch after the fork from CMU CL.
  15  *
  16  * This software is in the public domain and is provided with
  17  * absolutely no warranty. See the COPYING and CREDITS files for
  18  * more information.
  19  */
  20
  21 #include <stdio.h>
  22 #include <sys/types.h>
  23 #include <sys/times.h>
  24 #include <sys/stat.h>
  25 #include <sys/wait.h>
  26 #include <sys/ioctl.h>
  27 #include <sys/termios.h>
  28 #include <fcntl.h>
  29 #include <unistd.h>
  30
  31 #define DEFTYPE(lispname,cname) { cname foo; \
  32     printf("(define-alien-type " lispname " (%s %d))\n", (((foo=-1)<0) ? "sb!alien:signed" : "unsigned"), (8 * (sizeof foo))); }
  33
  34 void
  35 defconstant(char* lisp_name, long unix_number)
  36 {
  37     printf("(defconstant %s %ld) ; #x%lx\n",
  38            lisp_name, unix_number, unix_number);
  39 }
  40
  41 int
  42 main(int argc, char *argv[])
  43 {
  44     /* don't need no steenking command line arguments */
  45     if (1 != argc) {
  46         fprintf(stderr, "argh! command line argument(s)\n");
  47         exit(1);
  48     }
  49
  50     /* don't need no steenking hand-editing */
  51     printf(
  52 ";;;; This is an automatically generated file, please do not hand-edit it.\n\
  53 ;;;; See the program \"grovel_headers.c\".\n\
  54 \n\
  55 ");
  56
  57     printf("(in-package \"SB!UNIX\")\n\n");
  58
  59     printf(";;; types, types, types\n");
  60     DEFTYPE("clock-t", clock_t);
  61     DEFTYPE("dev-t",   dev_t);
  62     DEFTYPE("gid-t",   gid_t);
  63     DEFTYPE("ino-t",   ino_t);
  64     DEFTYPE("mode-t",  mode_t);
  65     DEFTYPE("nlink-t", nlink_t);
  66     DEFTYPE("off-t",   off_t);
  67     DEFTYPE("size-t",  size_t);
  68     DEFTYPE("time-t",  time_t);
  69     DEFTYPE("uid-t",   uid_t);
  70     printf("\n");
  71
  72     printf(";;; fcntl.h (or unistd.h on OpenBSD)\n");
  73     defconstant("r_ok", R_OK);
  74     defconstant("w_ok", W_OK);
  75     defconstant("x_ok", X_OK);
  76     defconstant("f_ok", F_OK);
  77     printf("\n");
  78
  79     printf(";;; fcntlbits.h\n");
  80     defconstant("o_rdonly",  O_RDONLY);
  81     defconstant("o_wronly",  O_WRONLY);
  82     defconstant("o_rdwr",    O_RDWR);
  83     defconstant("o_accmode", O_ACCMODE);
  84     defconstant("o_creat",   O_CREAT);
  85     defconstant("o_excl",    O_EXCL);
  86     defconstant("o_noctty",  O_NOCTTY);
  87     defconstant("o_trunc",   O_TRUNC);
  88     defconstant("o_append",  O_APPEND);
  89     printf(";;;\n");
  90     defconstant("s-ifmt",  S_IFMT);
  91     defconstant("s-ififo", S_IFIFO);
  92     defconstant("s-ifchr", S_IFCHR);
  93     defconstant("s-ifdir", S_IFDIR);
  94     defconstant("s-ifblk", S_IFBLK);
  95     defconstant("s-ifreg", S_IFREG);
  96     printf("\n");
  97
  98     defconstant("s-iflnk",  S_IFLNK);
  99     defconstant("s-ifsock", S_IFSOCK);
 100     printf("\n");
 101
 102     printf(";;; for wait3(2) in run-program.lisp\n");
 103     defconstant("wnohang", WNOHANG);
 104     defconstant("wuntraced", WUNTRACED);
 105     printf("\n");
 106
 107     printf(";;; various ioctl(2) flags\n");
 108     defconstant("tiocnotty",  TIOCNOTTY);
 109     defconstant("tiocgwinsz", TIOCGWINSZ);
 110     defconstant("tiocswinsz", TIOCSWINSZ);
 111     defconstant("tiocgpgrp",  TIOCGPGRP);
 112     defconstant("tiocspgrp",  TIOCSPGRP);
 113     /* KLUDGE: These are referenced by old CMUCL-derived code, but
 114      * Linux doesn't define them.
 115      *
 116      * I think these are the BSD names, but I don't know what the
 117      * corresponding SysV/Linux names are. As a point of reference,
 118      * CMUCL doesn't have these defined either (although the defining
 119      * forms *do* exist in src/code/unix.lisp), so I don't feel nearly
 120      * so bad about not hunting them down. Insight into renamed
 121      * obscure ioctl(2) flags appreciated. --njf, 2002-08-26
 122      *
 123      * I note that the first one I grepped for, TIOCSIGSEND, is
 124      * referenced in SBCL conditional on #+HPUX. Maybe the porters of
 125      * Oxbridge know more about things like that? And even if they
 126      * don't, one benefit of the Rhodes crusade to heal the worthy
 127      * ports should be that afterwards, if we grep for something like
 128      * this in CVS and it's not there, we can lightheartedly nuke it.
 129      * -- WHN 2002-08-30 */
 130     /*
 131       defconstant("tiocsigsend", TIOCSIGSEND);
 132       defconstant("tiocflush", TIOCFLUSH);
 133       defconstant("tiocgetp", TIOCGETP);
 134       defconstant("tiocsetp", TIOCSETP);
 135       defconstant("tiocgetc", TIOCGETC);
 136       defconstant("tiocsetc", TIOCSETC);
 137       defconstant("tiocgltc", TIOCGLTC);
 138       defconstant("tiocsltc", TIOCSLTC);
 139     */
 140     printf("\n");
 141
 142     return 0;
 143 }