Commit | Line | Data |
---|---|---|
1da177e4 | 1 | #!/bin/sh |
b2441318 | 2 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
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 | |
9 | # $2 - Output directory | |
1da177e4 | 10 | |
fd5f0cd6 | 11 | test ! -r $2/Makefile -o -O $2/Makefile || exit 0 |
18c32dac SR |
12 | # Only overwrite automatically generated Makefiles |
13 | # (so we do not overwrite kernel Makefile) | |
971edcfc | 14 | if test -e $2/Makefile && ! grep -q Automatically $2/Makefile |
18c32dac SR |
15 | then |
16 | exit 0 | |
17 | fi | |
d2301249 SR |
18 | if [ "${quiet}" != "silent_" ]; then |
19 | echo " GEN $2/Makefile" | |
20 | fi | |
fd5f0cd6 JB |
21 | |
22 | cat << EOF > $2/Makefile | |
1da177e4 LT |
23 | # Automatically generated by $0: don't edit |
24 | ||
1d3b3bfa JB |
25 | lastword = \$(word \$(words \$(1)),\$(1)) |
26 | makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST))) | |
27 | ||
0ff35771 PF |
28 | ifeq ("\$(origin V)", "command line") |
29 | VERBOSE := \$(V) | |
30 | endif | |
31 | ifneq (\$(VERBOSE),1) | |
32 | Q := @ | |
33 | endif | |
34 | ||
1d3b3bfa JB |
35 | MAKEARGS := -C $1 |
36 | MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir)) | |
1da177e4 LT |
37 | |
38 | MAKEFLAGS += --no-print-directory | |
39 | ||
9319f453 | 40 | .PHONY: __sub-make \$(MAKECMDGOALS) |
96678281 | 41 | |
9319f453 MY |
42 | __sub-make: |
43 | \$(Q)\$(MAKE) \$(MAKEARGS) \$(MAKECMDGOALS) | |
0b35786d | 44 | |
9319f453 | 45 | \$(filter-out __sub-make, \$(MAKECMDGOALS)): __sub-make |
3c955b40 | 46 | @: |
1da177e4 | 47 | EOF |