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|
#!/bin/sh -e
# Make certain that the script is not running in an internationalized
# environment.
LANG=C ; export LANG
LC_ALL=C ; export LC_ALL
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
case $lang in
h) tmp=htmp ;;
inc) tmp=itmp ;;
esac
otmp="`echo $1 | sed -e 's,\.[^.]*$,,'`.$tmp"; shift
echo "Creating ${otmp}" 1>&2
rm -f ${otmp}
# Can use any of the following: cat cmp cp diff echo egrep expr false
# grep install-info ln ls mkdir mv pwd rm rmdir sed sleep sort tar
# test touch true
cat <<EOF >>${otmp}
/* GDB Notifications to Observers.
Copyright (C) 2004-2017 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 3 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, see <http://www.gnu.org/licenses/>.
--
This file was generated using observer.sh and observer.texi. */
EOF
case $lang in
h) cat <<EOF >>${otmp}
#ifndef OBSERVER_H
#define OBSERVER_H
struct observer;
struct bpstats;
struct so_list;
struct objfile;
struct thread_info;
struct inferior;
struct trace_state_variable;
EOF
;;
esac
# We are about to set IFS=:, so DOS-style file names with a drive
# letter and a colon will be in trouble.
if test -n "$DJGPP"
then
texi=`echo $texi | sed -e 's,^\([a-zA-Z]\):/,/dev/\1/,'`
fi
# 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 $lang in
h) cat <<EOF >>${otmp}
/* ${event} notifications. */
typedef void (observer_${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 >>${otmp}
/* ${event} notifications. */
static struct observer_list *${event}_subject = NULL;
EOF
if test "$formal" != "void"; then
cat<<EOF >>${otmp}
struct ${event}_args { `echo "${formal}" | sed -e 's/,/;/g'`; };
EOF
fi
cat <<EOF >>${otmp}
static void
observer_${event}_notification_stub (const void *data, const void *args_data)
{
observer_${event}_ftype *notify = (observer_${event}_ftype *) data;
EOF
notify_args=`echo ${actual} | sed -e 's/\([a-z0-9_][a-z0-9_]*\)/args->\1/g'`
if test ! -z "${notify_args}"; then
cat<<EOF >>${otmp}
const struct ${event}_args *args = (const struct ${event}_args *) args_data;
EOF
fi
cat <<EOF >>${otmp}
notify (${notify_args});
}
struct observer *
observer_attach_${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} (${formal})
{
EOF
if test "$formal" != "void"; then
cat<<EOF >>${otmp}
struct ${event}_args args;
`echo ${actual} | sed -e 's/\([a-z0-9_][a-z0-9_]*\)/args.\1 = \1/g'`;
EOF
else
echo "char *args = NULL;" >> ${otmp}
fi
cat<<EOF >>${otmp}
if (observer_debug)
fprintf_unfiltered (gdb_stdlog, "observer_notify_${event}() called\n");
generic_observer_notify (${event}_subject, &args);
}
EOF
;;
esac
done
case $lang in
h) cat <<EOF >>${otmp}
#endif /* OBSERVER_H */
EOF
esac
echo Moving ${otmp} to ${o}
mv ${otmp} ${o}
|
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