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180 lines
8.2 KiB
Bash
180 lines
8.2 KiB
Bash
# This file declares functions to install the kernel headers for linux
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# Copyright 2007 Yann E. MORIN
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# Licensed under the GPL v2. See COPYING in the root of this package
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# Check kernel configuration
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do_kernel_check_config() {
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CT_DoStep INFO "Checking kernel configuration"
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if [ "${CT_KERNEL_LINUX_HEADERS_USE_CUSTOM_DIR}" != "y" \
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-a \( -z "${CT_KERNEL_LINUX_CONFIG_FILE}" -o ! -r "${CT_KERNEL_LINUX_CONFIG_FILE}" \) ]; then
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CT_DoLog WARN "You did not provide a kernel configuration file!"
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CT_DoLog WARN "I will try to generate one for you, but beware!"
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CT_DoStep INFO "Building a default configuration file for linux kernel"
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mkdir -p "${CT_BUILD_DIR}/build-kernel-defconfig"
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cd "${CT_BUILD_DIR}/build-kernel-defconfig"
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make -C "${CT_SRC_DIR}/${CT_KERNEL_FILE}" O=`pwd` \
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ARCH=${CT_KERNEL_ARCH} defconfig 2>&1 |CT_DoLog DEBUG
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CT_KERNEL_LINUX_CONFIG_FILE="`pwd`/.config"
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CT_EndStep
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fi
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CT_EndStep
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}
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# Wrapper to the actual headers install method
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do_kernel_headers() {
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CT_DoStep INFO "Installing kernel headers"
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# Special case when using pre-installed headers
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if [ "${CT_KERNEL_LINUX_HEADERS_USE_CUSTOM_DIR}" = "y" ]; then
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do_kernel_preinstalled
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else
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# We need to enter this directory to find the kernel version strings
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cd "${CT_SRC_DIR}/${CT_KERNEL_FILE}"
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if [ "${CT_KERNEL_LINUX_HEADERS_SANITISED}" != "y" ]; then
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k_version=`awk '/^VERSION =/ { print $3 }' Makefile`
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k_patchlevel=`awk '/^PATCHLEVEL =/ { print $3 }' Makefile`
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k_sublevel=`awk '/^SUBLEVEL =/ { print $3 }' Makefile`
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k_extraversion=`awk '/^EXTRAVERSION =/ { print $3 }' Makefile`
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else
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k_version=`echo "${CT_KERNEL_VERSION}." |cut -d . -f 1`
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k_patchlevel=`echo "${CT_KERNEL_VERSION}." |cut -d . -f 2`
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k_sublevel=`echo "${CT_KERNEL_VERSION}." |cut -d . -f 3`
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k_extraversion=`echo "${CT_KERNEL_VERSION}." |cut -d . -f 4`
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fi
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case "${k_version}.${k_patchlevel}" in
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2.2|2.4|2.6) ;;
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*) CT_Abort "Unsupported kernel version \"linux-${k_version}.${k_patchlevel}\".";;
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esac
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# Kernel version that support verbosity will use this, others will ignore it:
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V_OPT="V=${CT_KERNEL_LINUX_VERBOSE_LEVEL}"
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if [ "${CT_KERNEL_LINUX_HEADERS_INSTALL}" = "y" ]; then
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do_kernel_install
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elif [ "${CT_KERNEL_LINUX_HEADERS_SANITISED}" = "y" ]; then
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do_kernel_sanitised
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else [ "${CT_KERNEL_LINUX_HEADERS_COPY}" = "y" ];
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do_kernel_copy
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fi
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fi
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CT_EndStep
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}
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# Install kernel headers using headers_install from kernel sources.
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do_kernel_install() {
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CT_DoLog EXTRA "Using kernel's headers_install"
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mkdir -p "${CT_BUILD_DIR}/build-kernel-headers"
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cd "${CT_BUILD_DIR}/build-kernel-headers"
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case "${k_version}.${k_patchlevel}" in
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2.6) [ ${k_sublevel} -ge 18 ] || CT_Abort "Kernel version >= 2.6.18 is needed to install kernel headers.";;
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*) CT_Abort "Kernel version >= 2.6.18 is needed to install kernel headers.";;
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esac
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CT_DoLog EXTRA "Configuring kernel headers"
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cp "${CT_KERNEL_LINUX_CONFIG_FILE}" .config
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CT_DoYes "" |make -C "${CT_SRC_DIR}/${CT_KERNEL_FILE}" \
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O="${CT_BUILD_DIR}/build-kernel-headers" \
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${V_OPT} \
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ARCH=${CT_KERNEL_ARCH} oldconfig 2>&1 |CT_DoLog DEBUG
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CT_DoLog EXTRA "Installing kernel headers"
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make ARCH=${CT_KERNEL_ARCH} \
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INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr" \
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${V_OPT} \
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headers_install 2>&1 |CT_DoLog DEBUG
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CT_DoLog EXTRA "Checking installed headers"
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make ARCH=${CT_KERNEL_ARCH} \
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INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr" \
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${V_OPT} \
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headers_check 2>&1 |CT_DoLog DEBUG
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}
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# Install kernel headers from oldish Mazur's sanitised headers.
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do_kernel_sanitised() {
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CT_DoLog EXTRA "Copying sanitised headers"
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cd "${CT_SRC_DIR}/${CT_KERNEL_FILE}"
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cp -rv include/linux "${CT_HEADERS_DIR}" 2>&1 |CT_DoLog DEBUG
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cp -rv "include/asm-${CT_KERNEL_ARCH}" "${CT_HEADERS_DIR}/asm" 2>&1 |CT_DoLog DEBUG
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}
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# Install kernel headers by plain copy.
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do_kernel_copy() {
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CT_DoLog EXTRA "Copying plain kernel headers"
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CT_DoLog WARN "You are using plain kernel headers. You really shouldn't do that."
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CT_DoLog WARN "You'd be better off by using installed headers (or sanitised headers)."
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# 2.2 and 2.4 don't support building out-of-tree. 2.6 does.
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CT_DoLog EXTRA "Preparing kernel headers"
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case "${k_version}.${k_patchlevel}" in
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2.2|2.4) cd "${CT_SRC_DIR}/${CT_KERNEL_FILE}"
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cp "${CT_KERNEL_LINUX_CONFIG_FILE}" .config
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CT_DoYes "" |make ARCH=${CT_KERNEL_ARCH} oldconfig
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# 2.4 doesn't follow V=# for verbosity... :-(
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make ARCH=${CT_KERNEL_ARCH} symlinks include/linux/version.h
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;;
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2.6) mkdir -p "${CT_BUILD_DIR}/build-kernel-headers"
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cd "${CT_BUILD_DIR}/build-kernel-headers"
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cp "${CT_KERNEL_LINUX_CONFIG_FILE}" .config
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CT_DoYes "" |make -C "${CT_SRC_DIR}/${CT_KERNEL_FILE}" \
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O="`pwd`" ${V_OPT} ARCH=${CT_KERNEL_ARCH} \
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oldconfig
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case "${CT_KERNEL_ARCH}" in
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sh*) # sh does secret stuff in 'make prepare' that can't be
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# triggered separately, but happily, it doesn't use
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# target gcc, so we can use it.
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# Update: this fails on 2.6.11, as it installs
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# elfconfig.h, which requires target compiler :-(
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make ${PARALLELMFLAGS} \
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ARCH=${CT_KERNEL_ARCH} ${V_OPT} \
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prepare include/linux/version.h
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;;
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arm*|cris*) make ${PARALLELMFLAGS} \
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ARCH=${CT_KERNEL_ARCH} ${V_OPT} \
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include/asm include/linux/version.h \
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include/asm-${CT_KERNEL_ARCH}/.arch
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;;
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mips*) # for linux-2.6, 'make prepare' for mips doesn't
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# actually create any symlinks. Hope generic is ok.
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# Note that glibc ignores all -I flags passed in CFLAGS,
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# so you have to use -isystem.
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make ${PARALLELMFLAGS} \
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ARCH=${CT_KERNEL_ARCH} ${V_OPT} \
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include/asm include/linux/version.h
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TARGET_CFLAGS="${TARGET_CFLAGS} -isystem ${LINUX_HEADER_DIR}/include/asm-mips/mach-generic"
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;;
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*) make ${PARALLELMFLAGS} \
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ARCH=${CT_KERNEL_ARCH} ${V_OPT} \
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include/asm include/linux/version.h
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;;
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esac
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;;
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esac 2>&1 |CT_DoLog DEBUG
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CT_DoLog EXTRA "Copying kernel headers"
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cp -rv include/asm-generic "${CT_HEADERS_DIR}/asm-generic" 2>&1 |CT_DoLog DEBUG
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cp -rv include/linux "${CT_HEADERS_DIR}" 2>&1 |CT_DoLog DEBUG
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cp -rv include/asm-${CT_KERNEL_ARCH} "${CT_HEADERS_DIR}/asm" 2>&1 |CT_DoLog DEBUG
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}
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# Use preinstalled headers (most probably by using make headers_install in a
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# modified (read: customised) kernel tree). In this case, simply copy
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# the headers in place
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do_kernel_preinstalled() {
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CT_DoLog EXTRA "Copying preinstalled kernel headers"
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mkdir -p "${CT_SYSROOT_DIR}/usr"
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cd "${CT_KERNEL_LINUX_HEADERS_CUSTOM_DIR}"
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cp -rv include "${CT_SYSROOT_DIR}/usr" 2>&1 |CT_DoLog DEBUG
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}
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