blob: 84af27bf0f99fc8983564eebaf63aed7797e7a30
1 | #!/bin/sh |
2 | # Generates a small Makefile used in the root of the output |
3 | # directory, to allow make to be started from there. |
4 | # The Makefile also allow for more convinient build of external modules |
5 | |
6 | # Usage |
7 | # $1 - Kernel src directory |
8 | # $2 - Output directory |
9 | # $3 - version |
10 | # $4 - patchlevel |
11 | |
12 | |
13 | test ! -r $2/Makefile -o -O $2/Makefile || exit 0 |
14 | # Only overwrite automatically generated Makefiles |
15 | # (so we do not overwrite kernel Makefile) |
16 | if test -e $2/Makefile && ! grep -q Automatically $2/Makefile |
17 | then |
18 | exit 0 |
19 | fi |
20 | if [ "${quiet}" != "silent_" ]; then |
21 | echo " GEN $2/Makefile" |
22 | fi |
23 | |
24 | cat << EOF > $2/Makefile |
25 | # Automatically generated by $0: don't edit |
26 | |
27 | VERSION = $3 |
28 | PATCHLEVEL = $4 |
29 | |
30 | lastword = \$(word \$(words \$(1)),\$(1)) |
31 | makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST))) |
32 | |
33 | ifeq ("\$(origin V)", "command line") |
34 | VERBOSE := \$(V) |
35 | endif |
36 | ifneq (\$(VERBOSE),1) |
37 | Q := @ |
38 | endif |
39 | |
40 | MAKEARGS := -C $1 |
41 | MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir)) |
42 | |
43 | MAKEFLAGS += --no-print-directory |
44 | |
45 | .PHONY: __sub-make \$(MAKECMDGOALS) |
46 | |
47 | __sub-make: |
48 | \$(Q)\$(MAKE) \$(MAKEARGS) \$(MAKECMDGOALS) |
49 | |
50 | \$(filter-out __sub-make, \$(MAKECMDGOALS)): __sub-make |
51 | @: |
52 | EOF |
53 |