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|
#!/bin/bash
cc=gcc
ld=ld
objcopy=objcopy
ar=ar
usage() {
cat <<-EOF
Usage: $0 [options]
Options include:
--arch=ARCH Architecture: arm or aarch64
--plat=PLATFORM Platform: virt or vexpress-a15
--cpu=PROCESSOR CPU: cortex-a15 or cortex-a57
--cross-prefix=PREFIX Cross compiler
--cc=CC C compiler to use (blank is auto)
--ld=LD Loader to use (blank is auto)
EOF
exit 1
}
while [[ "$1" = -* ]]; do
opt="$1"; shift
arg=
if [[ "$opt" = *=* ]]; then
arg="${opt#*=}"
opt="${opt%%=*}"
fi
case "$opt" in
--arch)
arch="$arg"
;;
--plat)
plat="$arg"
;;
--cpu)
cpu="$arg"
;;
--cross-prefix)
cross_prefix="$arg"
;;
--cc)
cc="$arg"
;;
--ld)
ld="$arg"
;;
--help)
usage
;;
*)
usage
;;
esac
done
if [ -z "$arch" ]; then
cat <<-EOF
An architecture must be specified. Either "--arch=arm" or "--arch=aarch64".
EOF
exit 1
fi
if [ -z "$cpu" ]; then
if [ "$arch" = "arm" ]; then
cpu="cortex-a15"
elif [ "$arch" = "aarch64" ]; then
cpu="cortex-a57"
fi
fi
if [ -z "$plat" ]; then
plat="virt"
fi
if [ -z "$cross" ]; then
if [ "$arch" = "arm" ]; then
cross="arm-linux-gnueabi"
elif [ "$arch" = "aarch64" ]; then
cross="aarch64-linux-gnu"
fi
fi
if [ "$arch" = "arm" ]; then
cflags="-m$arch -mcpu=$cpu"
fi
# create the config
cat <<EOF > config.mk
export ARCH=$arch
export PLAT=$plat
export PROCESSOR=$cpu
export CROSS=$cross
export CC=$cross-$cc
export LD=$cross-$ld
export OBJCOPY=$cross-$objcopy
export AR=$cross-$ar
export CFLAGS+=$cflags
EOF
|
