[lttng-modules.git] / scripts / built-in.sh

#!/bin/bash
# SPDX-License-Identifier: (GPL-2.0-only OR LGPL-2.1-only)

set -e

usage() {
	echo "usage: $0 <kernel source tree>" >&2
	exit 1
}

[ "$#" -eq 1 ] || usage
KERNEL_DIR="$(readlink --canonicalize-existing "$1")"

# Symlink the lttng-modules directory in the kernel source
ln -sf "$(pwd)" "${KERNEL_DIR}/lttng"

# Graft ourself to the kernel build system
echo 'source "lttng/src/Kconfig"' >> "${KERNEL_DIR}/Kconfig"
sed -i 's#+= kernel/#+= kernel/ lttng/#' "${KERNEL_DIR}/Makefile"

echo >&2
echo "    $0: done." >&2
echo "    $0: now you can build the kernel with LTTng support." >&2
echo "    $0: make sure you enable it (CONFIG_LTTNG) before building." >&2
echo >&2
Commit	Line	Data
	1	#!/bin/bash
	2	# SPDX-License-Identifier: (GPL-2.0-only OR LGPL-2.1-only)
	3
	4	set -e
	5
	6	usage() {
	7	echo "usage: $0 <kernel source tree>" >&2
	8	exit 1
	9	}
	10
	11	[ "$#" -eq 1 ] \|\| usage
	12	KERNEL_DIR="$(readlink --canonicalize-existing "$1")"
	13
	14	# Symlink the lttng-modules directory in the kernel source
	15	ln -sf "$(pwd)" "${KERNEL_DIR}/lttng"
	16
	17	# Graft ourself to the kernel build system
	18	echo 'source "lttng/src/Kconfig"' >> "${KERNEL_DIR}/Kconfig"
	19	sed -i 's#+= kernel/#+= kernel/ lttng/#' "${KERNEL_DIR}/Makefile"
	20
	21	echo >&2
	22	echo " $0: done." >&2
	23	echo " $0: now you can build the kernel with LTTng support." >&2
	24	echo " $0: make sure you enable it (CONFIG_LTTNG) before building." >&2
	25	echo >&2