1#!/bin/sh 2# $FreeBSD$ 3 4# Grrr, this should use stdin and stdout, but is encrufted for compatibility. 5 6usage() { 7 echo "usage: genassym [-o outfile] objfile" 8 exit 1 9} 10 11outfile=/dev/stdout 12while getopts "o:" option 13do 14 case "$option" in 15 o) outfile="$OPTARG";; 16 *) usage;; 17 esac 18done 19shift $(($OPTIND - 1)) 20case $# in 211) ;; 22*) usage;; 23esac 24 25${NM:='nm'} "$1" | awk ' 26/ C .*sign$/ { 27 sign = substr($1, length($1) - 3, 4) 28 sub("^0*", "", sign) 29 if (sign != "") 30 sign = "-" 31} 32/ C .*w0$/ { 33 w0 = substr($1, length($1) - 3, 4) 34} 35/ C .*w1$/ { 36 w1 = substr($1, length($1) - 3, 4) 37} 38/ C .*w2$/ { 39 w2 = substr($1, length($1) - 3, 4) 40} 41/ C .*w3$/ { 42 w3 = substr($1, length($1) - 3, 4) 43 w = w3 w2 w1 w0 44 sub("^0*", "", w) 45 if (w == "") 46 w = "0" 47 sub("w3$", "", $3) 48 # This still has minor problems representing INT_MIN, etc. E.g., 49 # with 32-bit 2''s complement ints, this prints -0x80000000, which 50 # has the wrong type (unsigned int). 51 printf("#define\t%s\t%s0x%s\n", $3, sign, w) 52} 53' 3>"$outfile" >&3 3>&- 54