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Commit | Line | Data |
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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 | MAKEARGS := -C $1 | |
34 | MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir)) | |
35 | ||
36 | MAKEFLAGS += --no-print-directory | |
37 | ||
38 | .PHONY: all \$(MAKECMDGOALS) | |
39 | ||
40 | all := \$(filter-out all Makefile,\$(MAKECMDGOALS)) | |
41 | ||
42 | all: | |
43 | \$(MAKE) \$(MAKEARGS) \$(all) | |
44 | ||
45 | Makefile:; | |
46 | ||
47 | \$(all): all | |
48 | @: | |
49 | ||
50 | %/: all | |
51 | @: | |
52 | EOF |