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[scripts] ext-toolchain.sh: add option to write .config
Add a new --config option to generate a .config from a given toolchain, this allows for easy integration of external toolchains, e.g. ./scripts/ext-toolchain.sh --toolchain /opt/mips-2011.03 --cflags "-muclibc" --config atheros to setup a ready-to-compile atheros target using the external CodeSourcery toolchain. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29780 3c298f89-4303-0410-b956-a3cf2f4a3e73
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jow
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156a74e724
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@ -34,7 +34,7 @@ LIB_SPECS="
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c: ld-* lib{anl,c,cidn,crypt,dl,m,nsl,nss_dns,nss_files,resolv,util}
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rt: librt-* librt
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pthread: libpthread-* libpthread
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cpp: libstdc++
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stdcpp: libstdc++
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gcc: libgcc_s
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ssp: libssp
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gfortran: libgfortran
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@ -142,7 +142,7 @@ test_feature() {
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find_libs() {
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local spec="$(echo "$LIB_SPECS" | sed -ne "s#^[[:space:]]*$1:##p")"
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local spec="$(echo "$LIB_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
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if [ -n "$spec" ] && probe_cpp; then
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local libdir libdirs
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@ -167,7 +167,7 @@ find_libs() {
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}
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find_bins() {
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local spec="$(echo "$BIN_SPECS" | sed -ne "s#^[[:space:]]*$1:##p")"
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local spec="$(echo "$BIN_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
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if [ -n "$spec" ] && probe_cpp; then
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local sysroot="$("$CPP" -print-sysroot)"
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@ -237,6 +237,126 @@ wrap_bins() {
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}
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print_config() {
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local mktarget="$1"
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local mksubtarget
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local target="$("$CC" $CFLAGS -dumpmachine)"
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local cpuarch="${target%%-*}"
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local prefix="${CC##*/}"; prefix="${prefix%-*}-"
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local config="${0%/scripts/*}/.config"
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# if no target specified, print choice list and exit
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if [ -z "$mktarget" ]; then
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# prepare metadata
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if [ ! -f "${0%/scripts/*}/tmp/.targetinfo" ]; then
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"${0%/*}/scripts/config/mconf" prepare-tmpinfo
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fi
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local mktargets=$(
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sed -ne "
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/^Target: / { h };
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/^Target-Arch: $cpuarch\$/ { x; s#^Target: ##p }
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" "${0%/scripts/*}/tmp/.targetinfo" | sort -u
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)
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for mktarget in $mktargets; do
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case "$mktarget" in */*)
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mktargets=$(echo "$mktargets" | sed -e "/^${mktarget%/*}\$/d")
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esac
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done
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if [ -n "$mktargets" ]; then
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echo "Available targets:" >&2
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echo $mktargets >&2
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else
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echo -e "Could not find a suitable OpenWrt target for " >&2
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echo -e "CPU architecture '$cpuarch' - you need to " >&2
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echo -e "define one first!" >&2
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fi
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return 1
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fi
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# bail out if there is a .config already
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if [ -f "${0%/scripts/*}/.config" ]; then
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echo "There already is a .config file, refusing to overwrite!" >&2
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return 1
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fi
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case "$mktarget" in */*)
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mksubtarget="${mktarget#*/}"
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mktarget="${mktarget%/*}"
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;; esac
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echo "CONFIG_TARGET_${mktarget}=y" > "$config"
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if [ -n "$mksubtarget" ]; then
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echo "CONFIG_TARGET_${mktarget}_${mksubtarget}=y" >> "$config"
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fi
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if test_feature "softfloat"; then
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echo "CONFIG_SOFT_FLOAT=y" >> "$config"
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else
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echo "# CONFIG_SOFT_FLOAT is not set" >> "$config"
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fi
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if test_feature "ipv6"; then
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echo "CONFIG_IPV6=y" >> "$config"
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else
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echo "# CONFIG_IPV6 is not set" >> "$config"
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fi
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if test_feature "locale"; then
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echo "CONFIG_NLS=y" >> "$config"
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else
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echo "# CONFIG_NLS is not set" >> "$config"
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fi
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echo "CONFIG_DEVEL=y" >> "$config"
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echo "CONFIG_EXTERNAL_TOOLCHAIN=y" >> "$config"
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echo "CONFIG_TOOLCHAIN_ROOT=\"$TOOLCHAIN\"" >> "$config"
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echo "CONFIG_TOOLCHAIN_PREFIX=\"$prefix\"" >> "$config"
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echo "CONFIG_TARGET_NAME=\"$target\"" >> "$config"
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local lib
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for lib in C RT PTHREAD GCC STDCPP SSP GFORTRAN; do
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local file
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local spec=""
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local llib="$(echo "$lib" | sed -e 's#.*#\L&#')"
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for file in $(find_libs "$lib"); do
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spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
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done
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if [ -n "$spec" ]; then
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echo "CONFIG_PACKAGE_lib${llib}=y" >> "$config"
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echo "CONFIG_LIB${lib}_FILE_SPEC=\"$spec\"" >> "$config"
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else
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echo "# CONFIG_PACKAGE_lib${llib} is not set" >> "$config"
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fi
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done
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local bin
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for bin in LDD LDCONFIG; do
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local file
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local spec=""
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local lbin="$(echo "$bin" | sed -e 's#.*#\L&#')"
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for file in $(find_bins "$bin"); do
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spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
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done
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if [ -n "$spec" ]; then
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echo "CONFIG_PACKAGE_${lbin}=y" >> "$config"
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echo "CONFIG_${bin}_FILE_SPEC=\"$spec\"" >> "$config"
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else
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echo "# CONFIG_PACKAGE_${lbin} is not set" >> "$config"
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fi
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done
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# inflate
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make -C "${0%/scripts/*}" defconfig
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return 0
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}
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probe_cc() {
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if [ -z "$CC" ]; then
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local bin
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@ -366,6 +486,15 @@ while [ -n "$1" ]; do
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exit $?
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;;
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--config)
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if probe_cc; then
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print_config "$1"
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exit $?
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fi
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echo "No C compiler found in '$TOOLCHAIN'." >&2
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exit 1
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;;
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-h|--help)
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me="$(basename "$0")"
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echo -e "\nUsage:\n" >&2
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@ -388,6 +517,11 @@ while [ -n "$1" ]; do
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echo -e " Create wrapper scripts for C and C++ compiler, " >&2
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echo -e " linker, assembler and other key executables in " >&2
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echo -e " the directory given with --wrap.\n" >&2
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echo -e " $me --toolchain {directory} --config {target}" >&2
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echo -e " Analyze the given toolchain and print a suitable" >&2
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echo -e " .config for the given target. Omit target " >&2
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echo -e " argument to get a list of names." >&2
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echo -e " suitable to prime .config with.\n" >&2
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echo -e " $me --help" >&2
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echo -e " Display this help text and exit.\n\n" >&2
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echo -e " Most commands also take a --cflags parameter which " >&2
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