u-boot-brain/scripts/mkmakefile
Masahiro Yamada 22433fc54b kbuild: import more build scripts from Linux v3.13 tag
This commit imports build scripts from Linux Kernel v3.13
as they are.

I know they include some trailing spaces
but I am intentionally keeping them untouched.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:07:50 -05:00

60 lines
1.2 KiB
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#!/bin/sh
# 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
# $2 - Output directory
# $3 - version
# $4 - patchlevel
test ! -r $2/Makefile -o -O $2/Makefile || exit 0
# Only overwrite automatically generated Makefiles
# (so we do not overwrite kernel Makefile)
if test -e $2/Makefile && ! grep -q Automatically $2/Makefile
then
exit 0
fi
if [ "${quiet}" != "silent_" ]; then
echo " GEN $2/Makefile"
fi
cat << EOF > $2/Makefile
# Automatically generated by $0: don't edit
VERSION = $3
PATCHLEVEL = $4
lastword = \$(word \$(words \$(1)),\$(1))
makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST)))
ifeq ("\$(origin V)", "command line")
VERBOSE := \$(V)
endif
ifneq (\$(VERBOSE),1)
Q := @
endif
MAKEARGS := -C $1
MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir))
MAKEFLAGS += --no-print-directory
.PHONY: all \$(MAKECMDGOALS)
all := \$(filter-out all Makefile,\$(MAKECMDGOALS))
all:
\$(Q)\$(MAKE) \$(MAKEARGS) \$(all)
Makefile:;
\$(all): all
@:
%/: all
@:
EOF