target: use SPDX license identifiers on Makefiles

[openwrt/staging/chunkeey.git] / target / linux / uml / image / Makefile

diff --git a/target/linux/uml/image/Makefile b/target/linux/uml/image/Makefile
index 5e7247ecdd5976cb63adbc2ad6998c37e9da786d..45ab0cfbcdfa2e465ae6713e039ec793f1686387 100644 (file)
--- a/target/linux/uml/image/Makefile
+++ b/target/linux/uml/image/Makefile
@@ -1,9 +1,7 @@
-# 
-# Copyright (C) 2006-2010 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
+# SPDX-License-Identifier: GPL-2.0-only
 #
+# Copyright (C) 2006-2010 OpenWrt.org
+
 include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/image.mk
 
@@ -11,9 +9,25 @@ define Image/Prepare
        cp $(LINUX_DIR)/linux $(KDIR)/vmlinux.elf
 endef
 
+define Image/Build/squashfs
+       dd if=/dev/zero of=$(KDIR)/root.squashfs bs=1024k count=0 seek=$(CONFIG_TARGET_ROOTFS_PARTSIZE)
+endef
+
 define Image/Build
+       $(call Image/Build/$(1))
        cp $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-$(1).img
        cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux
 endef
 
 $(eval $(call BuildImage))
+
+# UML requires linking against several glibc static libraries: libutil, librt
+# and libpthread, check that here. We do not check against libpthread
+# specifically because getting something to build that references a libpthread
+# symbol is pretty involved and Linux distributions package these 3 libraries
+# in the same package.
+
+$(eval $(call TestHostCommand,glibc-static, \
+       Please install a static glibc package. (Missing libutil.a, librt.a or libpthread.a), \
+       echo 'int main(int argc, char **argv) { login(0); timer_gettime(0, 0); return 0; }' | \
+               gcc -include utmp.h -x c -o $(TMP_DIR)/a.out - -static -lutil -lrt))