Cleanup: move scripts to subdirectory

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

diff --git a/scripts/built-in.sh b/scripts/built-in.sh
new file mode 100755 (executable)
index 0000000..5e57e93
--- /dev/null
+++ b/scripts/built-in.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+# SPDX-License-Identifier: (GPL-2.0 OR LGPL-2.1)
+
+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)" "${KERNEL_DIR}/lttng"
+
+# Graft ourself to the kernel build system
+echo 'source "lttng/Kconfig"' >> "${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