| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #!/bin/sh |
| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 2 | # SPDX-License-Identifier: GPL-2.0 |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | # Generates a small Makefile used in the root of the output |
| 4 | # directory, to allow make to be started from there. |
| 5 | # The Makefile also allow for more convinient build of external modules |
| 6 | |
| 7 | # Usage |
| 8 | # $1 - Kernel src directory |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | |
| Sam Ravnborg | 18c32da | 2007-12-09 08:55:13 +0100 | [diff] [blame] | 10 | # Only overwrite automatically generated Makefiles |
| 11 | # (so we do not overwrite kernel Makefile) |
| Masahiro Yamada | 4fd6127 | 2018-09-18 17:45:53 +0900 | [diff] [blame^] | 12 | if test -e Makefile && ! grep -q Automatically Makefile |
| Sam Ravnborg | 18c32da | 2007-12-09 08:55:13 +0100 | [diff] [blame] | 13 | then |
| 14 | exit 0 |
| 15 | fi |
| Sam Ravnborg | d230124 | 2008-11-21 23:00:12 +0100 | [diff] [blame] | 16 | if [ "${quiet}" != "silent_" ]; then |
| Masahiro Yamada | 4fd6127 | 2018-09-18 17:45:53 +0900 | [diff] [blame^] | 17 | echo " GEN Makefile" |
| Sam Ravnborg | d230124 | 2008-11-21 23:00:12 +0100 | [diff] [blame] | 18 | fi |
| Jan Beulich | fd5f0cd | 2006-05-02 12:33:20 +0200 | [diff] [blame] | 19 | |
| Masahiro Yamada | 4fd6127 | 2018-09-18 17:45:53 +0900 | [diff] [blame^] | 20 | cat << EOF > Makefile |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | # Automatically generated by $0: don't edit |
| 22 | |
| Jan Beulich | 1d3b3bf | 2008-01-11 09:09:00 +0000 | [diff] [blame] | 23 | lastword = \$(word \$(words \$(1)),\$(1)) |
| 24 | makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST))) |
| 25 | |
| Peter Foley | 0ff3577 | 2011-07-04 18:55:23 -0400 | [diff] [blame] | 26 | ifeq ("\$(origin V)", "command line") |
| 27 | VERBOSE := \$(V) |
| 28 | endif |
| 29 | ifneq (\$(VERBOSE),1) |
| 30 | Q := @ |
| 31 | endif |
| 32 | |
| Jan Beulich | 1d3b3bf | 2008-01-11 09:09:00 +0000 | [diff] [blame] | 33 | MAKEARGS := -C $1 |
| 34 | MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir)) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | |
| 36 | MAKEFLAGS += --no-print-directory |
| 37 | |
| Masahiro Yamada | 9319f45 | 2014-04-09 15:51:35 +0900 | [diff] [blame] | 38 | .PHONY: __sub-make \$(MAKECMDGOALS) |
| Jan Beulich | 9667828 | 2006-01-30 10:05:09 +0100 | [diff] [blame] | 39 | |
| Masahiro Yamada | 9319f45 | 2014-04-09 15:51:35 +0900 | [diff] [blame] | 40 | __sub-make: |
| 41 | \$(Q)\$(MAKE) \$(MAKEARGS) \$(MAKECMDGOALS) |
| Milton Miller | 0b35786 | 2007-09-21 18:09:02 -0500 | [diff] [blame] | 42 | |
| Masahiro Yamada | 9319f45 | 2014-04-09 15:51:35 +0900 | [diff] [blame] | 43 | \$(filter-out __sub-make, \$(MAKECMDGOALS)): __sub-make |
| Jan Beulich | 3c955b4 | 2010-08-16 11:58:58 +0100 | [diff] [blame] | 44 | @: |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | EOF |