scripts/showasm

   1 #!/bin/sh
   2
   3 # Copyright 2006 Rob Landley <rob@landley.net>
   4 # Licensed under GPLv2 or later, see file LICENSE in this source tree.
   5
   6 # Dumb little utility function to print out the assembly dump of a single
   7 # function, or list the functions so dumpable in an executable.  You'd think
   8 # there would be a way to get objdump to do this, but I can't find it.
   9
  10 [ $# -lt 1 ] || [ $# -gt 2 ] && { echo "usage: showasm file function"; exit 1; }
  11
  12 [ ! -f $1 ] && { echo "File $1 not found"; exit 1; }
  13
  14 if [ $# -eq 1 ]
  15 then
  16   objdump -d $1 | sed -n -e 's/^[0-9a-fA-F]* <\(.*\)>:$/\1/p'
  17   exit 0
  18 fi
  19
  20 objdump -d $1 | sed -n -e '/./{H;$!d}' -e "x;/^.[0-9a-fA-F]* <$2>:/p"