1# SPDX-License-Identifier: GPL-2.0
 2# include/asm-generic contains a lot of files that are used
 3# verbatim by several architectures.
 4#
 5# This Makefile reads the file arch/$(SRCARCH)/include/$(src)/Kbuild
 6# and for each file listed in this file with generic-y creates
 7# a small wrapper file in $(obj) (arch/$(SRCARCH)/include/generated/$(src))
 8
 9PHONY := all
10all:
11
12kbuild-file := $(srctree)/arch/$(SRCARCH)/include/$(src)/Kbuild
13-include $(kbuild-file)
14
15include scripts/Kbuild.include
16
17# Create output directory if not already present
18_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
19
20# Stale wrappers when the corresponding files are removed from generic-y
21# need removing.
22generated-y   := $(generic-y) $(generated-y)
23all-files     := $(patsubst %, $(obj)/%, $(generated-y))
24old-headers   := $(wildcard $(obj)/*.h)
25unwanted      := $(filter-out $(all-files),$(old-headers))
26
27quiet_cmd_wrap = WRAP    $@
28cmd_wrap = echo "\#include <asm-generic/$*.h>" >$@
29
30quiet_cmd_remove = REMOVE  $(unwanted)
31cmd_remove = rm -f $(unwanted)
32
33all: $(patsubst %, $(obj)/%, $(generic-y)) FORCE
34	$(if $(unwanted),$(call cmd,remove),)
35	@:
36
37$(obj)/%.h:
38	$(call cmd,wrap)
39
40PHONY += FORCE
41.PHONY: $(PHONY)
42FORCE: ;

 
 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
 8kbuild-file := $(srctree)/arch/$(SRCARCH)/include/asm/Kbuild
 
 
 
 9-include $(kbuild-file)
10
11include scripts/Kbuild.include
12
13# Create output directory if not already present
14_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
15
 
 
 
 
 
 
 
16quiet_cmd_wrap = WRAP    $@
17cmd_wrap = echo "\#include <asm-generic/$*.h>" >$@
18
19all: $(patsubst %, $(obj)/%, $(generic-y))
 
 
 
 
20	@:
21
22$(obj)/%.h:
23	$(call cmd,wrap)
24