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Masahiro Yamada 80d0dda3a4 kbuild: simplify command line creation in scripts/mkmakefile

Assuming we never invoke the generated Makefile from outside of
the $(objtree) directory, $(CURDIR) points to the absolute path
of $(objtree).

BTW, 'lastword' is natively supported by GNU Make 3.81+, which
is the current requirement for building the kernel.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

2018-10-04 22:56:02 +09:00

866 B

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#!/bin/sh

SPDX-License-Identifier: GPL-2.0

Generates a small Makefile used in the root of the output

directory, to allow make to be started from there.

The Makefile also allow for more convinient build of external modules

Usage

$1 - Kernel src directory

Only overwrite automatically generated Makefiles

(so we do not overwrite kernel Makefile)

if test -e Makefile && ! grep -q Automatically Makefile then exit 0 fi if [ "${quiet}" != "silent_" ]; then echo " GEN Makefile" fi

cat << EOF > Makefile

Automatically generated by $0: don't edit

ifeq ("$(origin V)", "command line") VERBOSE := $(V) endif ifneq ($(VERBOSE),1) Q := @ endif

MAKEFLAGS += --no-print-directory

.PHONY: __sub-make $(MAKECMDGOALS)

__sub-make: $(Q)$(MAKE) -C $1 O=$(CURDIR) $(MAKECMDGOALS)

$(filter-out __sub-make, $(MAKECMDGOALS)): __sub-make @: EOF

866 B Executable File Raw Blame History