1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
#!/bin/sh -e
if test $# -ne 3
then
echo "Usage: $0 <h|inc> <observer.texi> <observer.out>" 1>&2
exit 0
fi
lang=$1 ; shift
texi=$1 ; shift
o=$1 ; shift
echo "Creating ${o}-tmp" 1>&2
rm -f ${o}-tmp
# Can use any of the following: cat cmp cp diff echo egrep expr false
# grep install-info ln ls mkdir mv pwd rm rmdir sed sleep sort tar
# test touch true
cat <<EOF >>${o}-tmp
/* GDB Notifications to Observers.
Copyright 2004 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
--
This file was generated using observer.sh and observer.texi. */
EOF
case $lang in
h) cat <<EOF >>${o}-tmp
#ifndef OBSERVER_H
#define OBSERVER_H
struct observer;
struct bpstats;
struct so_list;
EOF
;;
esac
# generate a list of events that can be observed
IFS=:
sed -n '
/@deftypefun void/{
# Save original line for later processing into the actual parameter
h
# Convert from: @deftypefun void EVENT (TYPE @var{PARAM},...)
# to event and formals: EVENT:TYPE PARAM, ...:
s/^.* void \([a-z_][a-z_]*\) (\(.*\))$/\1:\2/
s/@var{//g
s/}//g
# Switch to held
x
# Convert from: @deftypefun void FUNC (TYPE @var{PARAM},...)
# to actuals: PARAM, ...
s/^[^{]*[{]*//
s/[}]*[^}]*$//
s/}[^{]*{/, /g
# Combine held (EVENT:TYPE PARAM, ...:) and pattern (PARAM, ...) into
# FUNC:TYPE PARAM, ...:PARAM, ...
H
x
s/\n/:/g
p
}
' $texi | while read event formal actual
do
case $lang in
h) cat <<EOF >>${o}-tmp
/* ${event} notifications. */
typedef void (observer_${event}_ftype) (${formal});
extern struct observer *observer_attach_${event} (observer_${event}_ftype *f);
extern void observer_detach_${event} (struct observer *observer);
extern void observer_notify_${event} (${formal});
EOF
;;
inc)
cat <<EOF >>${o}-tmp
/* ${event} notifications. */
static struct observer_list *${event}_subject = NULL;
struct ${event}_args { `echo "${formal}" | sed -e 's/,/;/g'`; };
static void
observer_${event}_notification_stub (const void *data, const void *args_data)
{
observer_${event}_ftype *notify = (observer_${event}_ftype *) data;
const struct ${event}_args *args = args_data;
notify (`echo ${actual} | sed -e 's/\([a-z0-9_][a-z0-9_]*\)/args->\1/g'`);
}
struct observer *
observer_attach_${event} (observer_${event}_ftype *f)
{
return generic_observer_attach (&${event}_subject,
&observer_${event}_notification_stub,
(void *) f);
}
void
observer_detach_${event} (struct observer *observer)
{
generic_observer_detach (&${event}_subject, observer);
}
void
observer_notify_${event} (${formal})
{
struct ${event}_args args;
`echo ${actual} | sed -e 's/\([a-z0-9_][a-z0-9_]*\)/args.\1 = \1/g'`;
if (observer_debug)
fprintf_unfiltered (gdb_stdlog, "observer_notify_${event}() called\n");
generic_observer_notify (${event}_subject, &args);
}
EOF
;;
esac
done
case $lang in
h) cat <<EOF >>${o}-tmp
#endif /* OBSERVER_H */
EOF
esac
echo Moving ${o}-tmp to ${o}
mv ${o}-tmp ${o}
|
