#!/bin/bash
############################################################################
# tools/mkdeps.sh
#
# Copyright (C) 2007-2009, 2011-2013 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
#
# Usage:
show_usage ()
{
echo ""
echo "$progname [OPTIONS] CC -- CFLAGS -- file [file [file...]]"
echo ""
echo "Where:"
echo " CC"
echo " A variable number of arguments that define how to execute the compiler"
echo " CFLAGS"
echo " The compiler compilation flags"
echo " file"
echo " One or more C files whose dependencies will be checked. Each file is expected"
echo " to reside in the current directory unless --dep-path is provided on the command line"
echo ""
echo "And [OPTIONS] include:"
echo " --dep-debug"
echo " Enable script debug"
echo " --dep-path <path>"
echo " Do not look in the current directory for the file. Instead, look in <path> to see"
echo " if the file resides there. --dep-path may be used multiple times to specify"
echo " multiple alternative location"
echo " --obj-path <path>"
echo " The final objects will not reside in this path but, rather, at the path provided by"
echo " <path>. if provided multiple time, only the last --obj-path will be used."
echo " --obj-suffix <suffix>"
echo " If and object path is provided, then the extension will be assumed to be .o. This"
echo " default suffix can be overrided with this command line option."
echo " --winpaths <TOPDIR>"
echo " CC generates dependency lists using Windows paths (e.g., C:\blablah\blabla). This"
echo " switch instructs the script to use 'cygpath' to convert the Windows paths to Cygwin"
echo " paths"
echo " --help"
echo " Shows this message and exits"
exit 1
}
dodep ()
{
unset fullpath
if [ -z "$altpath" ]; then
if [ -r $1 ]; then
fullpath=$1
else
echo "# ERROR: No readable file at $1"
show_usage
fi
else
for path in $altpath; do
tmppath=$path/$1
if [ -r $tmppath ]; then
fullpath=$tmppath
break;
fi
done
if [ -z "$fullpath" ]; then
echo "# ERROR: No readable file for $1 found at any location"
show_usage
fi
fi
unset mtarg
if [ ! -z "$objpath" ]; then
srcname=`basename $1`
objname="${srcname%.*}"
mtarg="-MT ${objpath}/${objname}${suffix}"
fi
$cc -M $mtarg $cflags $fullpath || \
( echo "# ERROR: $cc -M $cflags $fullpath FAILED"; exit 4; )
}
unset cc
unset cflags
unset files
unset args
unset altpath
unset objpath
suffix=.o
winpaths=n
unset topdir
# Accumulate CFLAGS up to "--"
progname=$0
while [ ! -z "$1" ]; do
case $1 in
-- )
cc=$cflags
cflags=$args
args=
;;
--dep-debug )
if [ -z "$args" ]; then
set -x
else
args="$args $1"
fi
;;
--dep-path )
if [ -z "$args" ]; then
shift
altpath="$altpath $1"
else
args="$args $1"
fi
;;
--obj-path )
shift
objpath="$1"
;;
--obj-suffix )
shift
suffix="$1"
;;
--winpaths )
if [ -z "$args" ]; then
shift
winpaths=y
topdir=$1
else
args="$args $1"
fi
;;
--help )
show_usage
;;
*)
args="$args $1"
;;
esac
shift
done
files=$args
if [ -z "$cc" ]; then
echo "ERROR: No compiler specified"
show_usage
exit 1
fi
if [ -z "$files" ]; then
# Don't report an error -- this happens normally in some configurations
echo "# No files specified for dependency generataion"
exit 0
fi
# Check if this compiler generates Cygwin/Linux paths or Windows paths
if [ "X${winpaths}" = "Xy" ]; then
# We will have to parse and modify each dependency (yech)
# Make sure a valid TOPDIR argument was provided
if [ -z "$topdir" -o ! -d $topdir ]; then
echo "<TOPDIR> not specified or does not exist: $topdir"
show_usage
exit 1
fi
# Get the top dir expressed like the Windows GCC would use it, except
# with forward slashs
wtopdir=`cygpath -w ${topdir} | sed -e "s,\\\\\\,/,g"`
# Then get the dependency and perform conversions on it to make it
# palatable to the Cygwin make. This is probably not sufficiently
# general to work on all platforms (like if your disk is not C:).
for file in $files ; do
dodep $file | sed -e "s,\\\,/,g" -e "s,${wtopdir},${topdir},g" \
-e "s,/ ,\\\ ,g" -e "s,c:/,/cygdrive/c/,g" \
-e "s,/$,\\\,g"
done
else
# For normal Cygwin/Linux GCC, the dependency paths are in the
# correct form and can simply be echoed on stdout
for file in $files ; do
dodep $file
done
fi
