gdb/observer.sh

   1 #!/bin/sh -e
   2
   3 # Make certain that the script is not running in an internationalized
   4 # environment.
   5 LANG=c ; export LANG
   6 LC_ALL=c ; export LC_ALL
   7
   8 if test $# -ne 3
   9 then
  10     echo "Usage: $0 <h|inc> <observer.texi> <observer.out>" 1>&2
  11     exit 0
  12 fi
  13
  14 lang=$1 ; shift
  15 texi=$1 ; shift
  16 o=$1
  17 case $lang in
  18   h) tmp=htmp ;;
  19   inc) tmp=itmp ;;
  20 esac
  21 otmp="`echo $1 | sed -e 's,\.[^.]*$,,'`.$tmp"; shift
  22 echo "Creating ${otmp}" 1>&2
  23 rm -f ${otmp}
  24
  25 # Can use any of the following: cat cmp cp diff echo egrep expr false
  26 # grep install-info ln ls mkdir mv pwd rm rmdir sed sleep sort tar
  27 # test touch true
  28
  29 cat <<EOF >>${otmp}
  30 /* GDB Notifications to Observers.
  31
  32    Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc.
  33
  34    This file is part of GDB.
  35
  36    This program is free software; you can redistribute it and/or modify
  37    it under the terms of the GNU General Public License as published by
  38    the Free Software Foundation; either version 2 of the License, or
  39    (at your option) any later version.
  40
  41    This program is distributed in the hope that it will be useful,
  42    but WITHOUT ANY WARRANTY; without even the implied warranty of
  43    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  44    GNU General Public License for more details.
  45
  46    You should have received a copy of the GNU General Public License
  47    along with this program; if not, write to the Free Software
  48    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  49    Boston, MA 02110-1301, USA.
  50
  51    --
  52
  53    This file was generated using observer.sh and observer.texi.  */
  54
  55 EOF
  56
  57
  58 case $lang in
  59     h) cat <<EOF >>${otmp}
  60 #ifndef OBSERVER_H
  61 #define OBSERVER_H
  62
  63 struct observer;
  64 struct bpstats;
  65 struct so_list;
  66 EOF
  67         ;;
  68 esac
  69
  70 # We are about to set IFS=:, so DOS-style file names with a drive
  71 # letter and a colon will be in trouble.
  72
  73 if test -n "$DJGPP"
  74 then
  75      texi=`echo $texi | sed -e 's,^\([a-zA-Z]\):/,/dev/\1/,'`
  76 fi
  77
  78 # generate a list of events that can be observed
  79
  80 IFS=:
  81 sed -n '
  82 /@deftypefun void/{
  83 # Save original line for later processing into the actual parameter
  84     h
  85 # Convert from: @deftypefun void EVENT (TYPE @var{PARAM},...)
  86 # to event and formals: EVENT:TYPE PARAM, ...:
  87     s/^.* void \([a-z_][a-z_]*\) (\(.*\))$/\1:\2/
  88     s/@var{//g
  89     s/}//g
  90 # Switch to held
  91     x
  92 # Convert from: @deftypefun void FUNC (TYPE @var{PARAM},...)
  93 # to actuals: PARAM, ...
  94     s/^[^{]*[{]*//
  95     s/[}]*[^}]*$//
  96     s/}[^{]*{/, /g
  97 # Combine held (EVENT:TYPE PARAM, ...:) and pattern (PARAM, ...) into
  98 # FUNC:TYPE PARAM, ...:PARAM, ...
  99     H
 100     x
 101     s/\n/:/g
 102     p
 103 }
 104 ' $texi | while read event formal actual
 105 do
 106   case $lang in
 107       h) cat <<EOF >>${otmp}
 108
 109 /* ${event} notifications.  */
 110
 111 typedef void (observer_${event}_ftype) (${formal});
 112
 113 extern struct observer *observer_attach_${event} (observer_${event}_ftype *f);
 114 extern void observer_detach_${event} (struct observer *observer);
 115 extern void observer_notify_${event} (${formal});
 116 EOF
 117         ;;
 118
 119       inc)
 120         cat <<EOF >>${otmp}
 121
 122 /* ${event} notifications.  */
 123
 124 static struct observer_list *${event}_subject = NULL;
 125
 126 struct ${event}_args { `echo "${formal}" | sed -e 's/,/;/g'`; };
 127
 128 static void
 129 observer_${event}_notification_stub (const void *data, const void *args_data)
 130 {
 131   observer_${event}_ftype *notify = (observer_${event}_ftype *) data;
 132   const struct ${event}_args *args = args_data;
 133   notify (`echo ${actual} | sed -e 's/\([a-z0-9_][a-z0-9_]*\)/args->\1/g'`);
 134 }
 135
 136 struct observer *
 137 observer_attach_${event} (observer_${event}_ftype *f)
 138 {
 139   return generic_observer_attach (&${event}_subject,
 140                                   &observer_${event}_notification_stub,
 141                                   (void *) f);
 142 }
 143
 144 void
 145 observer_detach_${event} (struct observer *observer)
 146 {
 147   generic_observer_detach (&${event}_subject, observer);
 148 }
 149
 150 void
 151 observer_notify_${event} (${formal})
 152 {
 153   struct ${event}_args args;
 154   `echo ${actual} | sed -e 's/\([a-z0-9_][a-z0-9_]*\)/args.\1 = \1/g'`;
 155   if (observer_debug)
 156     fprintf_unfiltered (gdb_stdlog, "observer_notify_${event}() called\n");
 157   generic_observer_notify (${event}_subject, &args);
 158 }
 159 EOF
 160         ;;
 161     esac
 162 done
 163
 164
 165 case $lang in
 166     h) cat <<EOF >>${otmp}
 167
 168 #endif /* OBSERVER_H */
 169 EOF
 170 esac
 171
 172
 173 echo Moving ${otmp} to ${o}
 174 mv ${otmp} ${o}