build/make/gen_asm_deps.sh

   1 #!/bin/bash
   2 ##
   3 ##  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
   4 ##
   5 ##  Use of this source code is governed by a BSD-style license
   6 ##  that can be found in the LICENSE file in the root of the source
   7 ##  tree. An additional intellectual property rights grant can be found
   8 ##  in the file PATENTS.  All contributing project authors may
   9 ##  be found in the AUTHORS file in the root of the source tree.
  10 ##
  11
  12
  13 self=$0
  14 show_help() {
  15     echo "usage: $self [options] <srcfile>"
  16     echo
  17     echo "Generate Makefile dependency information from assembly code source"
  18     echo
  19     exit 1
  20 }
  21 die_unknown(){
  22     echo "Unknown option \"$1\"."
  23     echo "See $0 --help for available options."
  24     exit 1
  25 }
  26 for opt do
  27     optval="${opt#*=}"
  28     case "$opt" in
  29     --build-pfx=*) pfx="${optval}"
  30     ;;
  31     --depfile=*) out="${optval}"
  32     ;;
  33     -I*) raw_inc_paths="${raw_inc_paths} ${opt}"
  34          inc_path="${inc_path} ${opt#-I}"
  35     ;;
  36     -h|--help) show_help
  37     ;;
  38     *) [ -f "$opt" ] && srcfile="$opt"
  39     ;;
  40     esac
  41 done
  42
  43 [ -n "$srcfile" ] || show_help
  44 sfx=${sfx:-asm}
  45 includes=$(egrep -i "include +\"?+[a-z0-9_/]+\.${sfx}" $srcfile |
  46            perl -p -e "s;.*?([a-z0-9_/]+.${sfx}).*;\1;")
  47 #" restore editor state
  48 for inc in ${includes}; do
  49     found_inc_path=
  50     for idir in ${inc_path}; do
  51         [ -f "${idir}/${inc}" ] && found_inc_path="${idir}" && break
  52     done
  53     if [ -f `dirname $srcfile`/$inc ]; then
  54         # Handle include files in the same directory as the source
  55         $self --build-pfx=$pfx --depfile=$out ${raw_inc_paths} `dirname $srcfile`/$inc
  56     elif [ -n "${found_inc_path}" ]; then
  57         # Handle include files on the include path
  58         $self --build-pfx=$pfx --depfile=$out ${raw_inc_paths} "${found_inc_path}/$inc"
  59     else
  60         # Handle generated includes in the build root (which may not exist yet)
  61         echo ${out} ${out%d}o: "${pfx}${inc}"
  62     fi
  63 done
  64 echo ${out} ${out%d}o: $srcfile