kernel checking functions, extracted from the nvidia-kernel ebuilds that Azarah wrote

1 files changed, 72 insertions, 0 deletions

diff --git a/eclass/check-kernel.eclass b/eclass/check-kernel.eclass
new file mode 100644
index 000000000000..f7b04a9585d9
--- /dev/null
+++ b/eclass/check-kernel.eclass
@@ -0,0 +1,72 @@
+# Copyright 1999-2003 Gentoo Technologies, Inc.
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/check-kernel.eclass,v 1.1 2003/08/02 20:48:24 seemant Exp $
+
+# Author: Martin Schlemmer <azarah@gentoo.org>
+# Eclass'd by: Seemant Kulleen <seemant@gentoo.org>
+#
+# The check-kernel eclass is designed to detect the kernel sources and
+# report info on the versions
+
+ECLASS=check-kernel
+INHERITED="${INHERITED} ${ECLASS}"
+
+EXPORT_FUNCTIONS check_version_h get_KV_info \
+	is_2_4_kernel is_2_5_kernel is_2_6_kernel
+
+newdepend "sys-apps/gawk"
+
+check_version_h() {
+	if [ ! -f "${ROOT}/usr/src/linux/include/linux/version.h" ]
+	then
+		eerror "Please verify that your /usr/src/linux symlink is pointing"
+		eerror "to your current kernel sources, and that you did run:"
+		eerror
+		eerror "  # make dep"
+		die "/usr/src/linux symlink not setup!"
+	fi
+}
+
+get_KV_info() {
+	check_version_h
+	
+	# Get the kernel version of sources in /usr/src/linux ...
+	export KV_full="$(awk '/UTS_RELEASE/ { gsub("\"", "", $3); print $3 }' \
+		"${ROOT}/usr/src/linux/include/linux/version.h")"
+	export KV_major="$(echo "${KV_full}" | cut -d. -f1)"
+	export KV_minor="$(echo "${KV_full}" | cut -d. -f2)"
+	export KV_micro="$(echo "${KV_full}" | cut -d. -f3 | sed -e 's:[^0-9].*::')"
+}
+
+is_2_4_kernel() {
+	get_KV_info
+	
+	if [ "${KV_major}" -eq 2 -a "${KV_minor}" -eq 4 ]
+	then
+		return 0
+	else
+		return 1
+	fi
+}
+
+is_2_5_kernel() {
+	get_KV_info
+	
+	if [ "${KV_major}" -eq 2 -a "${KV_minor}" -eq 5 ]
+	then
+		return 0
+	else
+		return 1
+	fi
+}
+
+is_2_6_kernel() {
+	get_KV_info
+
+	if [ "${KV_major}" -eq 2 -a "${KV_minor}" -eq 6 ]
+	then
+		return 0
+	else
+		return 1
+	fi
+}