Add samsung specific changes

build.config.msm.le

@@ -0,0 +1,60 @@
+################################################################################
+# Common MSM configuration for building non-GKI-based kernels
+DEFCONFIG="generic_le_min_defconfig"
+OPENSSL_DIR=${KERNEL_DIR}/../build/build-tools/path/linux-x86
+OPENSSL_BIN=${KERNEL_DIR}/../build/build-tools/path/linux-x86/openssl
+# Configuration options to build images for MSM targets
+# Must be included AFTER build.config.msm.<target>
+
+ append_cmd POST_DEFCONFIG_CMDS 'update_signing_keys_config'
+
+function update_signing_keys_config() {
+	if test -f "${OPENSSL_BIN}"; then
+		${OPENSSL_BIN} req -new -nodes -utf8 -newkey rsa:1024 -days 36500 \
+		             -batch -x509 -config ${KERNEL_DIR}/certs/qcom_x509.genkey \
+		             -outform PEM -out ${OUT_DIR}/verity_cert.pem -keyout ${OUT_DIR}/verity_key.pem
+
+		${OPENSSL_BIN} req -new -nodes -utf8 -sha256 -days 36500 \
+		             -batch -x509 -config ${KERNEL_DIR}/certs/qcom_x509.genkey \
+		             -outform PEM -out ${OUT_DIR}/signing_key.pem -keyout ${OUT_DIR}/signing_key.pem
+
+		${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \
+		--set-str CONFIG_MODULE_SIG_KEY "${OUT_DIR}/signing_key.pem" \
+		--set-str CONFIG_SYSTEM_TRUSTED_KEYS "${OUT_DIR}/verity_cert.pem"
+
+		(cd ${OUT_DIR} && \
+		make ${CC_LD_ARG} O=${OUT_DIR} ${MAKE_ARGS} olddefconfig)
+	fi
+}
+
+ append_cmd POST_KERNEL_BUILD_CMDS 'move_signing_keys'
+
+function move_signing_keys() {
+  cp ${OUT_DIR}/signing_key.pem ${OUT_DIR}/certs
+  cp ${OUT_DIR}/verity_key.pem ${OUT_DIR}/certs
+  cp ${OUT_DIR}/verity_cert.pem ${OUT_DIR}/certs
+}
+
+function build_defconfig_fragments() {
+	if [[ "${VARIANT}" =~ ^(perf_defconfig|debug_defconfig)$ ]]; then
+		if [ "${MSM_ARCH}" = sdxbaagha ]; then
+			config_128m=${KERNEL_DIR}/arch/${ARCH}/configs/vendor/${MSM_ARCH}-128m.config
+			[ -e "${config_128m}" ] && apply_defconfig_fragment ${config_128m} vendor/${MSM_ARCH}_defconfig
+		fi
+		apply_defconfig_fragment ${KERNEL_DIR}/arch/${ARCH}/configs/vendor/${MSM_ARCH}.config vendor/${MSM_ARCH}_defconfig
+
+		if [ "${VARIANT}" = perf_defconfig ]; then
+			return
+		fi
+
+		if [ "${MSM_ARCH}" = sdxbaagha ]; then
+			config_128m_debug=${KERNEL_DIR}/arch/${ARCH}/configs/vendor/${MSM_ARCH}-128m_debug.config
+			[ -e "${config_128m_debug}" ] && apply_defconfig_fragment ${config_128m_debug} vendor/${MSM_ARCH}_defconfig
+		fi
+		apply_defconfig_fragment ${KERNEL_DIR}/arch/${ARCH}/configs/vendor/${MSM_ARCH}_debug.config vendor/${MSM_ARCH}-debug_defconfig
+	else
+		echo "Variant '${VARIANT}' unsupported by mdm"
+		exit 1
+	fi
+}
+build_defconfig_fragments