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siglist.sh revision 1.7 
      1 #!/bin/sh
      2 #	$NetBSD: siglist.sh,v 1.7 2008/10/19 22:10:04 apb Exp $
      3 #
      4 # Script to generate a sorted, complete list of signals, suitable
      5 # for inclusion in trap.c as array initializer.
      6 #
      7 
      8 set -e
      9 
     10 : ${AWK:=awk}
     11 
     12 in=tmpi$$.c
     13 out=tmpo$$.c
     14 ecode=1
     15 trapsigs='0 1 2 13 15'
     16 trap 'rm -f $in $out; trap 0; exit $ecode' $trapsigs
     17 
     18 CPP="${1-cc -E}"
     19 
     20 # The trap here to make up for a bug in bash (1.14.3(1)) that calls the trap
     21 (trap $trapsigs;
     22  echo '#include "sh.h"';
     23  echo '	{ QwErTy SIGNALS , "DUMMY" , "hook for number of signals" },';
     24  sed -e '/^[	 ]*#/d' -e 's/^[	 ]*\([^ 	][^ 	]*\)[	 ][	 ]*\(.*[^ 	]\)[ 	]*$/#ifdef SIG\1\
     25 	{ QwErTy .signal = SIG\1 , .name = "\1", .mess = "\2" },\
     26 #endif/') > $in
     27 $CPP $in  > $out
     28 sed -n 's/{ QwErTy/{/p' < $out | ${AWK} '{print NR, $0}' | sort -k5n -k1n |
     29     sed 's/^[0-9]* //' |
     30     ${AWK} 'BEGIN { last=0; nsigs=0; }
     31 	{
     32 	    if ($4 ~ /^[0-9][0-9]*$/ && $5 == ",") {
     33 		n = $4;
     34 		if (n > 0 && n != last) {
     35 		    while (++last < n) {
     36 			printf "\t{ .signal = %d , .name = NULL, .mess = `Signal %d` } ,\n", last, last;
     37 		    }
     38 		    print;
     39 		}
     40 	    }
     41 	}' |
     42     tr '`' '"' | grep -v '"DUMMY"'
     43 ecode=0
     44