From d89596d6e58851f9d770cf052870092fb91a3600 Mon Sep 17 00:00:00 2001
From: jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 18 Jan 2012 23:46:06 +0000
Subject: [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
---
scripts/ext-toolchain.sh | 140 ++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 137 insertions(+), 3 deletions(-)
(limited to 'scripts/ext-toolchain.sh')
diff --git a/scripts/ext-toolchain.sh b/scripts/ext-toolchain.sh
index 26dc198a2..a53e5dcea 100755
--- a/scripts/ext-toolchain.sh
+++ b/scripts/ext-toolchain.sh
@@ -34,7 +34,7 @@ LIB_SPECS="
c: ld-* lib{anl,c,cidn,crypt,dl,m,nsl,nss_dns,nss_files,resolv,util}
rt: librt-* librt
pthread: libpthread-* libpthread
- cpp: libstdc++
+ stdcpp: libstdc++
gcc: libgcc_s
ssp: libssp
gfortran: libgfortran
@@ -142,7 +142,7 @@ test_feature() {
find_libs() {
- local spec="$(echo "$LIB_SPECS" | sed -ne "s#^[[:space:]]*$1:##p")"
+ local spec="$(echo "$LIB_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
if [ -n "$spec" ] && probe_cpp; then
local libdir libdirs
@@ -167,7 +167,7 @@ find_libs() {
}
find_bins() {
- local spec="$(echo "$BIN_SPECS" | sed -ne "s#^[[:space:]]*$1:##p")"
+ local spec="$(echo "$BIN_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
if [ -n "$spec" ] && probe_cpp; then
local sysroot="$("$CPP" -print-sysroot)"
@@ -237,6 +237,126 @@ wrap_bins() {
}
+print_config() {
+ local mktarget="$1"
+ local mksubtarget
+
+ local target="$("$CC" $CFLAGS -dumpmachine)"
+ local cpuarch="${target%%-*}"
+ local prefix="${CC##*/}"; prefix="${prefix%-*}-"
+ local config="${0%/scripts/*}/.config"
+
+ # if no target specified, print choice list and exit
+ if [ -z "$mktarget" ]; then
+ # prepare metadata
+ if [ ! -f "${0%/scripts/*}/tmp/.targetinfo" ]; then
+ "${0%/*}/scripts/config/mconf" prepare-tmpinfo
+ fi
+
+ local mktargets=$(
+ sed -ne "
+ /^Target: / { h };
+ /^Target-Arch: $cpuarch\$/ { x; s#^Target: ##p }
+ " "${0%/scripts/*}/tmp/.targetinfo" | sort -u
+ )
+
+ for mktarget in $mktargets; do
+ case "$mktarget" in */*)
+ mktargets=$(echo "$mktargets" | sed -e "/^${mktarget%/*}\$/d")
+ esac
+ done
+
+ if [ -n "$mktargets" ]; then
+ echo "Available targets:" >&2
+ echo $mktargets >&2
+ else
+ echo -e "Could not find a suitable OpenWrt target for " >&2
+ echo -e "CPU architecture '$cpuarch' - you need to " >&2
+ echo -e "define one first!" >&2
+ fi
+ return 1
+ fi
+
+ # bail out if there is a .config already
+ if [ -f "${0%/scripts/*}/.config" ]; then
+ echo "There already is a .config file, refusing to overwrite!" >&2
+ return 1
+ fi
+
+ case "$mktarget" in */*)
+ mksubtarget="${mktarget#*/}"
+ mktarget="${mktarget%/*}"
+ ;; esac
+
+
+ echo "CONFIG_TARGET_${mktarget}=y" > "$config"
+
+ if [ -n "$mksubtarget" ]; then
+ echo "CONFIG_TARGET_${mktarget}_${mksubtarget}=y" >> "$config"
+ fi
+
+ if test_feature "softfloat"; then
+ echo "CONFIG_SOFT_FLOAT=y" >> "$config"
+ else
+ echo "# CONFIG_SOFT_FLOAT is not set" >> "$config"
+ fi
+
+ if test_feature "ipv6"; then
+ echo "CONFIG_IPV6=y" >> "$config"
+ else
+ echo "# CONFIG_IPV6 is not set" >> "$config"
+ fi
+
+ if test_feature "locale"; then
+ echo "CONFIG_NLS=y" >> "$config"
+ else
+ echo "# CONFIG_NLS is not set" >> "$config"
+ fi
+
+ echo "CONFIG_DEVEL=y" >> "$config"
+ echo "CONFIG_EXTERNAL_TOOLCHAIN=y" >> "$config"
+ echo "CONFIG_TOOLCHAIN_ROOT=\"$TOOLCHAIN\"" >> "$config"
+ echo "CONFIG_TOOLCHAIN_PREFIX=\"$prefix\"" >> "$config"
+ echo "CONFIG_TARGET_NAME=\"$target\"" >> "$config"
+
+ local lib
+ for lib in C RT PTHREAD GCC STDCPP SSP GFORTRAN; do
+ local file
+ local spec=""
+ local llib="$(echo "$lib" | sed -e 's#.*#\L&#')"
+ for file in $(find_libs "$lib"); do
+ spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
+ done
+ if [ -n "$spec" ]; then
+ echo "CONFIG_PACKAGE_lib${llib}=y" >> "$config"
+ echo "CONFIG_LIB${lib}_FILE_SPEC=\"$spec\"" >> "$config"
+ else
+ echo "# CONFIG_PACKAGE_lib${llib} is not set" >> "$config"
+ fi
+ done
+
+ local bin
+ for bin in LDD LDCONFIG; do
+ local file
+ local spec=""
+ local lbin="$(echo "$bin" | sed -e 's#.*#\L&#')"
+ for file in $(find_bins "$bin"); do
+ spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
+ done
+ if [ -n "$spec" ]; then
+ echo "CONFIG_PACKAGE_${lbin}=y" >> "$config"
+ echo "CONFIG_${bin}_FILE_SPEC=\"$spec\"" >> "$config"
+ else
+ echo "# CONFIG_PACKAGE_${lbin} is not set" >> "$config"
+ fi
+ done
+
+ # inflate
+ make -C "${0%/scripts/*}" defconfig
+ return 0
+}
+
+
probe_cc() {
if [ -z "$CC" ]; then
local bin
@@ -366,6 +486,15 @@ while [ -n "$1" ]; do
exit $?
;;
+ --config)
+ if probe_cc; then
+ print_config "$1"
+ exit $?
+ fi
+ echo "No C compiler found in '$TOOLCHAIN'." >&2
+ exit 1
+ ;;
+
-h|--help)
me="$(basename "$0")"
echo -e "\nUsage:\n" >&2
@@ -388,6 +517,11 @@ while [ -n "$1" ]; do
echo -e " Create wrapper scripts for C and C++ compiler, " >&2
echo -e " linker, assembler and other key executables in " >&2
echo -e " the directory given with --wrap.\n" >&2
+ echo -e " $me --toolchain {directory} --config {target}" >&2
+ echo -e " Analyze the given toolchain and print a suitable" >&2
+ echo -e " .config for the given target. Omit target " >&2
+ echo -e " argument to get a list of names." >&2
+ echo -e " suitable to prime .config with.\n" >&2
echo -e " $me --help" >&2
echo -e " Display this help text and exit.\n\n" >&2
echo -e " Most commands also take a --cflags parameter which " >&2
--
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