2 # Generates a small Makefile used in the root of the output
3 # directory, to allow make to be started from there.
4 # The Makefile also allow for more convinient build of external modules
7 # $1 - Kernel src directory
8 # $2 - Output directory
13 test ! -r $2/Makefile
-o -O $2/Makefile ||
exit 0
14 # Only overwrite automatically generated Makefiles
15 # (so we do not overwrite kernel Makefile)
16 if test -e $2/Makefile
&& ! grep -q Automatically
$2/Makefile
20 if [ "${quiet}" != "silent_" ]; then
21 echo " GEN $2/Makefile"
24 cat << EOF > $2/Makefile
25 # Automatically generated by $0: don't edit
30 lastword = \$(word \$(words \$(1)),\$(1))
31 makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST)))
33 ifeq ("\$(origin V)", "command line")
41 MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir))
43 MAKEFLAGS += --no-print-directory
45 .PHONY: all \$(MAKECMDGOALS)
47 all := \$(filter-out all Makefile,\$(MAKECMDGOALS))
50 \$(Q)\$(MAKE) \$(MAKEARGS) \$(all)
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