48 lines
1.3 KiB
Bash
Executable File
48 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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# $NetBSD: siglist.sh,v 1.13 2021/02/23 01:31:30 christos Exp $
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#
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# Script to generate a sorted, complete list of signals, suitable
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# for inclusion in trap.c as array initializer.
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#
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set -e
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: ${AWK:=awk}
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: ${SED:=sed}
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in=tmpi$$.c
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out=tmpo$$.c
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ecode=1
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trapsigs='0 1 2 13 15'
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trap 'rm -f $in $out; trap 0; exit $ecode' $trapsigs
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CPP="${1-cc -E}"
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# The trap here to make up for a bug in bash (1.14.3(1)) that calls the trap
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(trap $trapsigs;
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echo '#include "sh.h"';
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echo ' { QwErTy /* dummy for sed sillies */ },';
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${SED} -e '/^[ ]*#/d' -e 's/^[ ]*\([^ ][^ ]*\)[ ][ ]*\(.*[^ ]\)[ ]*$/#ifdef SIG\1\
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{ QwErTy .signal = SIG\1 , .name = "\1", .mess = "\2" },\
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#endif/') > $in
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echo ' { QwErTy .signal = SIGNALS , .name = "DUMMY", .mess = "hook to expand array to total signals" },' >> $in
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# work around for gcc > 5
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$CPP $in | grep -v '^#' | tr -d '\n' | ${SED} 's/},/},\
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/g' > $out
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${SED} -n 's/{ QwErTy/{/p' < $out | ${AWK} '{print NR, $0}' | sort -k 5n -k 1n |
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${SED} -E -e 's/^[0-9]* //' -e 's/ +/ /' |
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${AWK} 'BEGIN { last=0; }
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{
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if ($4 ~ /^[0-9][0-9]*$/ && $5 == ",") {
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n = $4;
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if (n > 0 && n != last) {
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while (++last < n) {
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printf "\t{ .signal = %d , .name = NULL, .mess = `Signal %d` } ,\n", last, last;
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}
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print;
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}
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}
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}' |
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tr '`' '"' | grep -v '"DUMMY"'
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ecode=0
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