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[thirdparty/binutils-gdb.git] / 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}