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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 [ "${CT_ARCH_USE_MMU}" = "y" ]; then
CT_TARGET_KERNEL="linux"
else
# Some no-mmu linux targets requires a -uclinux tuple (like m68k/cf),
# while others must have a -linux tuple. Other targets
# should be added here when someone starts to care about them.
case "${CT_ARCH}" in
arm*) CT_TARGET_KERNEL="linux" ;;
m68k) CT_TARGET_KERNEL="uclinux" ;;
*) CT_Abort "Unsupported no-mmu arch '${CT_ARCH}'"
esac
fi
}
# Download the kernel
do_kernel_get() {
local k_ver
local custom_name
local rel_dir
local korg_base mirror_base
if [ "${CT_KERNEL_LINUX_CUSTOM}" = "y" ]; then
CT_GetCustom "linux" "${CT_KERNEL_LINUX_CUSTOM_VERSION}" \
"${CT_KERNEL_LINUX_CUSTOM_LOCATION}"
else # Not a custom tarball
case "${CT_KERNEL_VERSION}" in
2.6.*.*|3.*.*|4.*.*)
# 4-part versions (for 2.6 stables and long-terms), and
# 3-part versions (for 3.x.y and 4.x.y stables and long-terms)
# we need to trash the last digit
k_ver="${CT_KERNEL_VERSION%.*}"
;;
2.6.*|3.*|4.*)
# 3-part version (for 2.6.x initial releases), and 2-part
# versions (for 3.x and 4.x initial releases), use all of it
k_ver="${CT_KERNEL_VERSION}"
;;
esac
case "${CT_KERNEL_VERSION}" in
2.6.*) rel_dir=v2.6;;
3.*) rel_dir=v3.x;;
4.*) rel_dir=v4.x;;
esac
korg_base="http://www.kernel.org/pub/linux/kernel/${rel_dir}"
CT_GetFile "linux-${CT_KERNEL_VERSION}" \
"${korg_base}" \
"${korg_base}/longterm/v${k_ver}" \
"${korg_base}/longterm"
fi
}
# Extract kernel
do_kernel_extract() {
# If using a custom directory location, nothing to do
if [ "${CT_KERNEL_LINUX_CUSTOM}" = "y" \
-a -d "${CT_SRC_DIR}/linux-${CT_KERNEL_VERSION}" ]; then
return 0
fi
# Otherwise, we're using either a mainstream tarball, or a custom
# tarball; in either case, we need to extract
CT_Extract "linux-${CT_KERNEL_VERSION}"
# If using a custom tarball, no need to patch
if [ "${CT_KERNEL_LINUX_CUSTOM}" = "y" ]; then
return 0
fi
CT_Patch "linux" "${CT_KERNEL_VERSION}"
}
# Install kernel headers using headers_install from kernel sources.
do_kernel_headers() {
local kernel_path
local kernel_arch
CT_DoStep INFO "Installing kernel headers"
mkdir -p "${CT_BUILD_DIR}/build-kernel-headers"
kernel_path="${CT_SRC_DIR}/linux-${CT_KERNEL_VERSION}"
V_OPT="V=${CT_KERNEL_LINUX_VERBOSE_LEVEL}"
kernel_arch="${CT_ARCH}"
case "${CT_ARCH}:${CT_ARCH_BITNESS}" in
# ARM 64 (aka AArch64) is special
arm:64) kernel_arch="arm64";;
esac
CT_DoLog EXTRA "Installing kernel headers"
CT_DoExecLog ALL \
make -C "${kernel_path}" \
CROSS_COMPILE="${CT_TARGET}-" \
O="${CT_BUILD_DIR}/build-kernel-headers" \
ARCH=${kernel_arch} \
INSTALL_HDR_PATH="${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 "${kernel_path}" \
CROSS_COMPILE="${CT_TARGET}-" \
O="${CT_BUILD_DIR}/build-kernel-headers" \
ARCH=${kernel_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 {} \;
CT_EndStep
}
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