VisionFive2 Linux kernel

b24413180f560 (Greg Kroah-Hartman 2017-11-01 15:07:57 +0100  1) # SPDX-License-Identifier: GPL-2.0
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200  2) # include/asm-generic contains a lot of files that are used
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200  3) # verbatim by several architectures.
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200  4) #
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900  5) # This Makefile reads the file arch/$(SRCARCH)/include/(uapi/)/asm/Kbuild
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200  6) # and for each file listed in this file with generic-y creates
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900  7) # a small wrapper file in arch/$(SRCARCH)/include/generated/(uapi/)/asm.
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200  8) 
a7d34df3d12c3 (Masahiro Yamada    2017-10-11 12:52:29 +0900  9) PHONY := all
a7d34df3d12c3 (Masahiro Yamada    2017-10-11 12:52:29 +0900 10) all:
a7d34df3d12c3 (Masahiro Yamada    2017-10-11 12:52:29 +0900 11) 
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 12) src := $(subst /generated,,$(obj))
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 13) -include $(src)/Kbuild
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200 14) 
037fc3368be46 (Masahiro Yamada    2019-03-17 11:01:09 +0900 15) # $(generic)/Kbuild lists mandatory-y. Exclude um since it is a special case.
037fc3368be46 (Masahiro Yamada    2019-03-17 11:01:09 +0900 16) ifneq ($(SRCARCH),um)
3204a7fb98a3b (Masahiro Yamada    2021-02-28 15:10:26 +0900 17) include $(srctree)/$(generic)/Kbuild
037fc3368be46 (Masahiro Yamada    2019-03-17 11:01:09 +0900 18) endif
037fc3368be46 (Masahiro Yamada    2019-03-17 11:01:09 +0900 19) 
3204a7fb98a3b (Masahiro Yamada    2021-02-28 15:10:26 +0900 20) include $(srctree)/scripts/Kbuild.include
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200 21) 
7cbbbb8bc2974 (Masahiro Yamada    2019-03-17 11:01:08 +0900 22) redundant := $(filter $(mandatory-y) $(generated-y), $(generic-y))
7cbbbb8bc2974 (Masahiro Yamada    2019-03-17 11:01:08 +0900 23) redundant += $(foreach f, $(generic-y), $(if $(wildcard $(srctree)/$(src)/$(f)),$(f)))
7cbbbb8bc2974 (Masahiro Yamada    2019-03-17 11:01:08 +0900 24) redundant := $(sort $(redundant))
7cbbbb8bc2974 (Masahiro Yamada    2019-03-17 11:01:08 +0900 25) $(if $(redundant),\
7cbbbb8bc2974 (Masahiro Yamada    2019-03-17 11:01:08 +0900 26) 	$(warning redundant generic-y found in $(src)/Kbuild: $(redundant)))
7cbbbb8bc2974 (Masahiro Yamada    2019-03-17 11:01:08 +0900 27) 
919987318a129 (Masahiro Yamada    2019-01-03 10:10:38 +0900 28) # If arch does not implement mandatory headers, fallback to asm-generic ones.
919987318a129 (Masahiro Yamada    2019-01-03 10:10:38 +0900 29) mandatory-y := $(filter-out $(generated-y), $(mandatory-y))
919987318a129 (Masahiro Yamada    2019-01-03 10:10:38 +0900 30) generic-y   += $(foreach f, $(mandatory-y), $(if $(wildcard $(srctree)/$(src)/$(f)),,$(f)))
919987318a129 (Masahiro Yamada    2019-01-03 10:10:38 +0900 31) 
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 32) generic-y   := $(addprefix $(obj)/, $(generic-y))
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 33) generated-y := $(addprefix $(obj)/, $(generated-y))
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200 34) 
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 35) # Remove stale wrappers when the corresponding files are removed from generic-y
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 36) old-headers := $(wildcard $(obj)/*.h)
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 37) unwanted    := $(filter-out $(generic-y) $(generated-y),$(old-headers))
cda2c65f981d0 (James Hogan        2016-06-24 23:42:24 +0100 38) 
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200 39) quiet_cmd_wrap = WRAP    $@
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 40)       cmd_wrap = echo "\#include <asm-generic/$*.h>" > $@
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200 41) 
cda2c65f981d0 (James Hogan        2016-06-24 23:42:24 +0100 42) quiet_cmd_remove = REMOVE  $(unwanted)
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 43)       cmd_remove = rm -f $(unwanted)
cda2c65f981d0 (James Hogan        2016-06-24 23:42:24 +0100 44) 
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 45) all: $(generic-y)
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 46) 	$(if $(unwanted),$(call cmd,remove))
181e976327cf3 (Peter Foley        2011-06-08 20:58:32 -0400 47) 	@:
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200 48) 
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200 49) $(obj)/%.h:
d8ecc5cd8e227 (Sam Ravnborg       2011-04-27 22:29:49 +0200 50) 	$(call cmd,wrap)
cda2c65f981d0 (James Hogan        2016-06-24 23:42:24 +0100 51) 
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 52) # Create output directory. Skip it if at least one old header exists
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 53) # since we know the output directory already exists.
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 54) ifeq ($(old-headers),)
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 55) $(shell mkdir -p $(obj))
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 56) endif
7d0e5c2056c70 (Masahiro Yamada    2018-12-05 20:28:04 +0900 57) 
cda2c65f981d0 (James Hogan        2016-06-24 23:42:24 +0100 58) .PHONY: $(PHONY)