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Commit 1d3b3bfa authored by Jan Beulich's avatar Jan Beulich Committed by Sam Ravnborg
Browse files

kbuild: scripts/mkmakefile: dynamic determination of output directory 



Rather than fixing the output directory in the generated Makefile,
determine it from the placement of Makefile. This allows moving
the build tree around or accessing it through different mount paths.

(The lastword definition is a compatibility one for make prior to 3.81;
newer make will simply ignore it and use the [faster] built-in.)

Signed-off-by: default avatarJan Beulich <jbeulich@novell.com>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent df578e7d

scripts/mkmakefile

+7 −3
Original line number Original line Diff line number Diff line
@@ -25,8 +25,11 @@ cat << EOF > $2/Makefile 
VERSION = $3

VERSION = $3

PATCHLEVEL = $4

PATCHLEVEL = $4





KERNELSRC    := $1

lastword = \$(word \$(words \$(1)),\$(1))

KERNELOUTPUT := $2

makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST)))



MAKEARGS := -C $1

MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir))





MAKEFLAGS += --no-print-directory

MAKEFLAGS += --no-print-directory
@@ -35,10 +38,11 @@ MAKEFLAGS += --no-print-directory 
all	:= \$(filter-out all Makefile,\$(MAKECMDGOALS))

all	:= \$(filter-out all Makefile,\$(MAKECMDGOALS))





all:

all:

	\$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT) \$(all)

	\$(MAKE) \$(MAKEARGS) \$(all)





Makefile:;

Makefile:;





\$(all) %/: all

\$(all) %/: all

	@:

	@:



EOF
 
EOF