MAKEALL

#!/bin/bash

usage()
{
	cat <<-EOF
	Usage: MAKEALL [options] [Blackfin platforms to build]

	Options:
	  -u     Update defconfigs after successful build
	  -a     Build for all Blackfin variants (e.g. test BF537-STAMP on BF534/BF536)
	  -c     Build kernel sources with C=1
	  -cc    Build kernel sources with C=2
	  -h     This help screen

	If you do not specify any Blackfin platforms, the list will be taken
	automatically from all the defconfigs found in arch/blackfin/configs/
	EOF
	[[ -n $* ]] && printf "\nError: $*\n" 1>&2 && exit 1
	exit 0
}

update=false
all=false
makeargs=
while [[ -n $1 ]] ; do
	case $1 in
		-u)  update=true;;
		-a)  all=true;;
		-c)  makeargs="C=1";;
		-cc) makeargs="C=2";;
		-h)  usage;;
		--)  break;;
		-*)  usage "Unknown argument $1";;
		*)   break;;
	esac
	shift
done

jobs=$(grep -cs processor /proc/cpuinfo)
jobs=$((${jobs:-1} * 2))

procs() {
	local cpu=$(sed -n '/^CONFIG_BF5[0-9][0-9]=y/{s:CONFIG_::;s:=y::p}' .config)
	if ! ${all} ; then
		echo ${cpu}
		return
	fi
	case $cpu in
		BF51[2468])   echo BF51{2,4,6,8};;
		BF52[234567]) echo BF52{2,3,4,5,6,7};;
		BF53[123])    echo BF53{1,2,3};;
		BF53[467])    echo BF53{4,6,7};;
		BF53[89])     echo BF53{8,9};;
		BF54[24789])  echo BF54{2,4,7,9,8};;
		BF561)        echo BF561;;
		*)            echo FIXME;;
	esac
}

# workaround some kconfig dependencies which cannot be fully
# expressed in the kconfig for whatever reasons
check_kconfig() {
	# disable MUSB if SOC isnt supported
	if ! grep -qs USB_MUSB_SOC=y .config ; then
		sed -i '/CONFIG_USB_MUSB_HDRC=y/d' .config
	fi
}

make="make -s ARCH=blackfin CROSS_COMPILE=bfin-uclinux-"
export CONFIG_DEBUG_SECTION_MISMATCH=y

if [[ ! -e arch/blackfin/configs ]] ; then
	echo "Not in a kernel directory!?"
	exit 1
fi

ret=0
[[ -z $* ]] && set -- $(cd arch/blackfin/configs ; echo *_defconfig | sed s:_defconfig::g)
for b in "$@" ; do
	b="${b}_defconfig"
	echo "### $b"
	${make} $b >& /dev/null
	for p in $(procs) ; do
		echo -n "###### $p: "
		rm -f $b.$p.log*
		${make} $b >& /dev/null
		sed -i \
			-e 1iCONFIG_${p}=y \
			-e '/^# CONFIG_BF[[:digit:]]* is not set$/d' \
			-e '/^CONFIG_BF[[:digit:]]*=y/d' \
			.config
		yes "" | ${make} oldconfig >& /dev/null
		check_kconfig
		yes "" | ${make} oldconfig >& /dev/null
		${make} ${makeargs} -j${jobs} >& $b.$p.log
		if [[ $? -eq 0 ]] ; then
			echo "OK"
		else
			# "normalize" and "minimize" the error log
			${make} -j1 >& $b.$p.log.FAIL
			${make} -j1 >& $b.$p.log.FAIL
			echo "FAIL"
			((++ret))
		fi
	done
	if ${update} ; then
		diff -u .config arch/blackfin/configs/$b || :
		sed -e 4d .config > arch/blackfin/configs/$b
	fi
done
exit ${ret}