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# This file declares functions to install the kernel headers for linux
# Copyright 2007 Yann E. MORIN
# Licensed under the GPL v2. See COPYING in the root of this package
CT_DoKernelTupleValues() {
if [ "${CT_ARCH_USE_MMU}" = "y" ]; then
CT_TARGET_KERNEL="linux"
else
# Sometime, noMMU linux targets have a -uclinux tuple, while
# sometime it's -linux. We currently have only one noMMU linux
# target, and it uses -linux, so let's just use that. Time
# to fix that later...
# CT_TARGET_KERNEL="uclinux"
CT_TARGET_KERNEL="linux"
fi
}
# Download the kernel
do_kernel_get() {
local k_ver
local custom_name
if [ "${CT_KERNEL_LINUX_USE_CUSTOM_HEADERS}" = "y" ]; then
return 0
fi
if [ "${CT_KERNEL_LINUX_CUSTOM}" = "y" ]; then
# Wee need to know the custom tarball extension,
# so we can cerate a properly-named symlink, which
# we use later on in 'extract'
case "${CT_KERNEL_LINUX_CUSTOM_TARBALL}" in
*.tar.bz2) custom_name="linux-custom.tar.bz2";;
*.tar.gz|*.tgz) custom_name="linux-custom.tar.gz";;
*.tar) custom_name="linux-custom.tar";;
*) CT_Abort "Unknown extension for custom linux tarball '${CT_KERNEL_LINUX_CUSTOM_TARBALL}'";;
esac
CT_DoExecLog DEBUG ln -sf "${CT_KERNEL_LINUX_CUSTOM_TARBALL}" \
"${CT_TARBALLS_DIR}/${custom_name}"
else # Not a custom tarball
case "${CT_KERNEL_VERSION}" in
2.6.*.*|3.*.*)
# 4-part versions (for 2.6 stables and long-terms), and
# 3-part versions (for 3.x.y stables and long-terms),
# we need to trash the last digit
k_ver="${CT_KERNEL_VERSION%.*}"
;;
2.6.*|3.*)
# 3-part version (for 2.6.x initial releases), and 2-part
# versions (for 3.x initial releases), use all of it
k_ver="${CT_KERNEL_VERSION}"
;;
esac
CT_GetFile "linux-${CT_KERNEL_VERSION}" \
http://ftp.{de.,eu.,}kernel.org/pub/linux/kernel/v2.6 \
http://ftp.{de.,eu.,}kernel.org/pub/linux/kernel/v3.0 \
http://ftp.{de.,eu.,}kernel.org/pub/linux/kernel/v2.6/longterm/v${k_ver} \
http://ftp.{de.,eu.,}kernel.org/pub/linux/kernel/v3.0/longterm/v${k_ver}
fi
}
# Extract kernel
do_kernel_extract() {
if [ "${CT_KERNEL_LINUX_USE_CUSTOM_HEADERS}" = "y" ]; then
return 0
fi
# This also handles the custom tarball
CT_Extract "linux-${CT_KERNEL_VERSION}"
CT_Patch "linux" "${CT_KERNEL_VERSION}"
}
# Wrapper to the actual headers install method
do_kernel_headers() {
CT_DoStep INFO "Installing kernel headers"
if [ "${CT_KERNEL_LINUX_USE_CUSTOM_HEADERS}" = "y" ]; then
do_kernel_custom
else
do_kernel_install
fi
CT_EndStep
}
# Install kernel headers using headers_install from kernel sources.
do_kernel_install() {
local kernel_path
CT_DoLog DEBUG "Using kernel's headers_install"
mkdir -p "${CT_BUILD_DIR}/build-kernel-headers"
kernel_path="${CT_SRC_DIR}/linux-${CT_KERNEL_VERSION}"
if [ "${CT_KERNEL_LINUX_CUSTOM}" = "y" ]; then
kernel_path="${CT_SRC_DIR}/linux-custom"
fi
V_OPT="V=${CT_KERNEL_LINUX_VERBOSE_LEVEL}"
CT_DoLog EXTRA "Installing kernel headers"
CT_DoExecLog ALL \
make -C "${kernel_path}" \
O="${CT_BUILD_DIR}/build-kernel-headers" \
ARCH=${CT_ARCH} \
INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr" \
${V_OPT} \
headers_install
if [ "${CT_KERNEL_LINUX_INSTALL_CHECK}" = "y" ]; then
CT_DoLog EXTRA "Checking installed headers"
CT_DoExecLog ALL \
make -C "${kernel_path}" \
O="${CT_BUILD_DIR}/build-kernel-headers" \
ARCH=${CT_ARCH} \
INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr" \
${V_OPT} \
headers_check
fi
# Cleanup
find "${CT_SYSROOT_DIR}" -type f \
\( -name '.install' \
-o -name '..install.cmd' \
-o -name '.check' \
-o -name '..check.cmd' \
\) \
-exec rm {} \;
}
# Use custom headers (most probably by using make headers_install in a
# modified (read: customised) kernel tree, or using pre-2.6.18 headers, such
# as 2.4). In this case, simply copy the headers in place
do_kernel_custom() {
local tar_opt
CT_DoLog EXTRA "Installing custom kernel headers"
mkdir -p "${CT_SYSROOT_DIR}/usr"
cd "${CT_SYSROOT_DIR}/usr"
if [ "${CT_KERNEL_LINUX_CUSTOM_IS_TARBALL}" = "y" ]; then
case "${CT_KERNEL_LINUX_CUSTOM_PATH}" in
*.tar) ;;
*.tgz) tar_opt=--gzip;;
*.tar.gz) tar_opt=--gzip;;
*.tar.bz2) tar_opt=--bzip2;;
esac
CT_DoExecLog ALL tar x ${tar_opt} -vf ${CT_KERNEL_LINUX_CUSTOM_PATH}
else
CT_DoExecLog ALL cp -rv "${CT_KERNEL_LINUX_CUSTOM_PATH}/include" .
fi
}
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