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|
autogen definitions strsignal;
/*
* Dynamic definitions for creating the strsignal.h header file
*
* This file is part of AutoGen.
*
* AutoGen Copyright (c) 1992-2012 by Bruce Korb - all rights reserved
*
* AutoGen 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.
*
* AutoGen 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/>.
*/
#shell
RE_sigfind='[A-Z12]+[ ]+[1-9][0-9]*'
RE_sigdef='^#[ ]*define[ ][ ]*_*SIG'
RE_inc='^#[ ]*include[ ][ ]*<'
threshold=5 # minimum number of signals to accept
num=0 # number of signals defined in this file
seen="" # include files already searched
files="sys/signal.h" # initial files to search
cd /usr/include
while test -n "$files"
do
for file in $files; do
# look for $threshold or more matches in one of the search files
test -f $file || continue
sigs=`egrep "$RE_sigdef$RE_sigfind" $file|sed "s,$RE_sigdef,,"`
test -z "$sigs" || num=`echo "$sigs" | wc -l`
test $num -lt $threshold || break
seen="$file $seen"
done
test $num -lt $threshold || break
# IF no file has $threshold or better SIG matches;
# generate a new search list from all files #included from the old list
newfiles=""
for file in $files; do
test -f $file || continue
new=`egrep "$RE_inc" $file|sed "s,$RE_inc,,"';s,>.*$,,'`
newfiles=" $new $newfiles"
done
# remove any files that have been searched previously
for file in $seen; do
newfiles=`echo "$newfiles"|sed "s, $file , ,g"`
done
# set the search list for the next iteration
files="$newfiles"
num=0
done
if test $num -lt $threshold
then
echo "WARNING: cannot find signal definitions in $seen" >&2
echo "using POSIX + ANSI signal definitions" >&2
cat <<- _EOF_
signal[ 1 ] = { signame = SIGHUP;
sigtext = "Hangup (POSIX)."; };
signal[ 2 ] = { signame = SIGINT;
sigtext = "Interrupt (ANSI)."; };
signal[ 3 ] = { signame = SIGQUIT;
sigtext = "Quit (POSIX)."; };
signal[ 4 ] = { signame = SIGILL;
sigtext = "Illegal instruction (ANSI)."; };
signal[ 5 ] = { signame = SIGTRAP;
sigtext = "Trace trap (POSIX)."; };
signal[ 6 ] = { signame = SIGABRT;
sigtext = "Abort (ANSI)."; };
signal[ 8 ] = { signame = SIGFPE;
sigtext = "Floating-point exception (ANSI)."; };
signal[ 9 ] = { signame = SIGKILL;
sigtext = "Kill, unblockable (POSIX)."; };
signal[ 10 ] = { signame = SIGUSR1;
sigtext = "User-defined signal 1 (POSIX)."; };
signal[ 11 ] = { signame = SIGSEGV;
sigtext = "Segmentation violation (ANSI)."; };
signal[ 12 ] = { signame = SIGUSR2;
sigtext = "User-defined signal 2 (POSIX)."; };
signal[ 13 ] = { signame = SIGPIPE;
sigtext = "Broken pipe (POSIX)."; };
signal[ 14 ] = { signame = SIGALRM;
sigtext = "Alarm clock (POSIX)."; };
signal[ 15 ] = { signame = SIGTERM;
sigtext = "Termination (ANSI)."; };
signal[ 17 ] = { signame = SIGCHLD;
sigtext = "Child status has changed (POSIX)."; };
signal[ 18 ] = { signame = SIGCONT;
sigtext = "Continue (POSIX)."; };
signal[ 19 ] = { signame = SIGSTOP;
sigtext = "Stop, unblockable (POSIX)."; };
signal[ 20 ] = { signame = SIGTSTP;
sigtext = "Keyboard stop (POSIX)."; };
signal[ 21 ] = { signame = SIGTTIN;
sigtext = "Background read from tty (POSIX)."; };
signal[ 22 ] = { signame = SIGTTOU;
sigtext = "Background write to tty (POSIX)."; };
_EOF_
else
echo "$sigs" |
while read SIG NUM f
do
# IF the "signal number" is octal or hex or non-numeric,
# THEN we know it is a value we are not interested in
#
case ${NUM} in
*[A-Za-z_]* )
continue ;;
esac
# Sometimes, there are aliases. Accept only the first.
#
if eval test ! -z \"\$HAVE_${NUM}\"
then continue ; fi
# We also know we are not interested in super large numbers
# (e.g. SIGSTKSZ 8192)
#
if test ${NUM} -gt 127
then continue ; fi
eval HAVE_${NUM}=1
f=`echo "$f" | sed -e 's;/\*[ ]*;;' -e 's;[ ]*\*/;;'`
if test -z "$f"
then f="Undescribed: SIG${SIG} (${NUM})" ; fi
cat <<- _EOF_
signal[ ${NUM} ] = {
signame = ${SIG};
sigtext = "$f";
};
_EOF_
done
fi
#endshell
|
