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Commit | Line | Data |
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1 | #!/bin/sh | |
2 | # SPDX-License-Identifier: GPL-2.0 | |
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 | # $1 - Kernel src directory | |
9 | ||
10 | # Only overwrite automatically generated Makefiles | |
11 | # (so we do not overwrite kernel Makefile) | |
12 | if test -e Makefile && ! grep -q Automatically Makefile | |
13 | then | |
14 | exit 0 | |
15 | fi | |
16 | if [ "${quiet}" != "silent_" ]; then | |
17 | echo " GEN Makefile" | |
18 | fi | |
19 | ||
20 | cat << EOF > Makefile | |
21 | # Automatically generated by $0: don't edit | |
22 | ||
23 | ifeq ("\$(origin V)", "command line") | |
24 | VERBOSE := \$(V) | |
25 | endif | |
26 | ifneq (\$(VERBOSE),1) | |
27 | Q := @ | |
28 | endif | |
29 | ||
30 | MAKEFLAGS += --no-print-directory | |
31 | ||
32 | .PHONY: __sub-make \$(MAKECMDGOALS) | |
33 | ||
34 | __sub-make: | |
35 | \$(Q)\$(MAKE) -C $1 O=\$(CURDIR) \$(MAKECMDGOALS) | |
36 | ||
37 | \$(filter-out __sub-make, \$(MAKECMDGOALS)): __sub-make | |
38 | @: | |
39 | EOF |