target/linux/uml/image/Makefile

   1 #
   2 # Copyright (C) 2006-2010 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7 include $(TOPDIR)/rules.mk
   8 include $(INCLUDE_DIR)/image.mk
   9
  10 define Image/Prepare
  11         cp $(LINUX_DIR)/linux $(KDIR)/vmlinux.elf
  12 endef
  13
  14 define Image/Build/squashfs
  15         dd if=/dev/zero of=$(KDIR)/root.squashfs bs=1024k count=0 seek=$(CONFIG_TARGET_ROOTFS_PARTSIZE)
  16 endef
  17
  18 define Image/Build
  19         $(call Image/Build/$(1))
  20         cp $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-$(1).img
  21         cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux
  22 endef
  23
  24 $(eval $(call BuildImage))
  25
  26 # UML requires linking against several glibc static libraries: libutil, librt
  27 # and libpthread, check that here. We do not check against libpthread
  28 # specifically because getting something to build that references a libpthread
  29 # symbol is pretty involved and Linux distributions package these 3 libraries
  30 # in the same package.
  31
  32 $(eval $(call TestHostCommand,glibc-static, \
  33         Please install a static glibc package. (Missing libutil.a, librt.a or libpthread.a), \
  34         echo 'int main(int argc, char **argv) { login(0); timer_gettime(0, 0); return 0; }' | \
  35                 gcc -include utmp.h -x c -o $(TMP_DIR)/a.out - -static -lutil -lrt))