linux/arch/arm/tools/Makefile
Masahiro Yamada bbc90bc1bd arch: syscalls: simplify uapi/kapi directory creation
$(shell ...) expands to empty. There is no need to assign it to _dummy.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2022-03-31 12:03:46 +09:00

58 lines
1.5 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
#
# linux/arch/arm/tools/Makefile
#
# Copyright (C) 2001 Russell King
#
gen := arch/$(ARCH)/include/generated
kapi := $(gen)/asm
uapi := $(gen)/uapi/asm
syshdr := $(srctree)/scripts/syscallhdr.sh
sysnr := $(srctree)/$(src)/syscallnr.sh
systbl := $(srctree)/scripts/syscalltbl.sh
syscall := $(src)/syscall.tbl
gen-y := $(gen)/calls-oabi.S
gen-y += $(gen)/calls-eabi.S
kapi-hdrs-y := $(kapi)/unistd-nr.h
kapi-hdrs-y += $(kapi)/mach-types.h
uapi-hdrs-y += $(uapi)/unistd-oabi.h
uapi-hdrs-y += $(uapi)/unistd-eabi.h
targets += $(addprefix ../../../,$(gen-y) $(kapi-hdrs-y) $(uapi-hdrs-y))
PHONY += kapi uapi
kapi: $(kapi-hdrs-y) $(gen-y)
uapi: $(uapi-hdrs-y)
# Create output directory if not already present
$(shell mkdir -p $(kapi) $(uapi))
quiet_cmd_gen_mach = GEN $@
cmd_gen_mach = $(AWK) -f $(real-prereqs) > $@
$(kapi)/mach-types.h: $(src)/gen-mach-types $(src)/mach-types FORCE
$(call if_changed,gen_mach)
quiet_cmd_syshdr = SYSHDR $@
cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --abis common,$* \
--offset __NR_SYSCALL_BASE $< $@
quiet_cmd_systbl = SYSTBL $@
cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis common,$* $< $@
quiet_cmd_sysnr = SYSNR $@
cmd_sysnr = $(CONFIG_SHELL) $(sysnr) $< $@
$(uapi)/unistd-%.h: $(syscall) $(syshdr) FORCE
$(call if_changed,syshdr)
$(kapi)/unistd-nr.h: $(syscall) $(sysnr) FORCE
$(call if_changed,sysnr)
$(gen)/calls-%.S: $(syscall) $(systbl) FORCE
$(call if_changed,systbl)