Mercurial > hg > toybox
view scripts/showasm @ 305:b094b81830b0
A pathological case of huffman coding that uses 8 bits to code each of 256
symbols could cause an unsigned char limit[8] to wrap back to 0, setting
limit to -1 and making the decompressor exit with a data error.
author | Rob Landley <rob@landley.net> |
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date | Sat, 28 Jun 2008 01:07:34 -0500 |
parents | a43bdc6f53af |
children |
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#!/bin/sh # Copyright 2006 Rob Landley <rob@landley.net> # Dumb little utility function to print out the assembly dump of a single # function, or list the functions so dumpable in an executable. You'd think # there would be a way to get objdump to do this, but I can't find it. [ $# -lt 1 ] || [ $# -gt 2 ] && { echo "usage: showasm file function"; exit 1; } [ ! -f $1 ] && { echo "File $1 not found"; exit 1; } if [ $# -eq 1 ] then objdump -d $1 | sed -n -e 's/^[0-9a-fA-F]* <\(.*\)>:$/\1/p' exit 0 fi objdump -d $1 | sed -n -e '/./{H;$!d}' -e "x;/^.[0-9a-fA-F]* <$2>:/p"