Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[platform/kernel/linux-rpi.git] / scripts / Makefile.asm-generic
1 # include/asm-generic contains a lot of files that are used
2 # verbatim by several architectures.
3 #
4 # This Makefile reads the file arch/$(SRCARCH)/include/asm/Kbuild
5 # and for each file listed in this file with generic-y creates
6 # a small wrapper file in $(obj) (arch/$(SRCARCH)/include/generated/asm)
7
8 kbuild-file := $(srctree)/arch/$(SRCARCH)/include/$(src)/Kbuild
9 -include $(kbuild-file)
10
11 include scripts/Kbuild.include
12
13 # Create output directory if not already present
14 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
15
16 # Stale wrappers when the corresponding files are removed from generic-y
17 # need removing.
18 generated-y   := $(generic-y) $(genhdr-y) $(generated-y)
19 all-files     := $(patsubst %, $(obj)/%, $(generated-y))
20 old-headers   := $(wildcard $(obj)/*.h)
21 unwanted      := $(filter-out $(all-files),$(old-headers))
22
23 quiet_cmd_wrap = WRAP    $@
24 cmd_wrap = echo "\#include <asm-generic/$*.h>" >$@
25
26 quiet_cmd_remove = REMOVE  $(unwanted)
27 cmd_remove = rm -f $(unwanted)
28
29 all: $(patsubst %, $(obj)/%, $(generic-y)) FORCE
30         $(if $(unwanted),$(call cmd,remove),)
31         @:
32
33 $(obj)/%.h:
34         $(call cmd,wrap)
35
36 PHONY += FORCE
37 .PHONY: $(PHONY)
38 FORCE: ;