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s390/syscalls: add Makefile to generate system call header files 

Generate the system call specific files from the archheaders
and archprepare make targets.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Hendrik Brueckner 2017-12-11 14:54:08 +01:00 committed by Martin Schwidefsky
parent fd834e0970
commit 5c75824d91
2 changed files with 57 additions and 0 deletions
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5
arch/s390/Makefile
View File

@ -111,6 +111,7 @@ drivers-y += drivers/s390/
drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/
boot := arch/s390/boot
syscalls := arch/s390/kernel/syscalls
tools := arch/s390/tools
all: image bzImage
@ -132,7 +133,11 @@ archclean:
$(Q)$(MAKE) $(clean)=$(boot)
$(Q)$(MAKE) $(clean)=$(tools)
archheaders:
$(Q)$(MAKE) $(build)=$(syscalls) uapi
archprepare:
$(Q)$(MAKE) $(build)=$(syscalls) kapi
$(Q)$(MAKE) $(build)=$(tools) include/generated/facilities.h
$(Q)$(MAKE) $(build)=$(tools) include/generated/dis.h

52
arch/s390/kernel/syscalls/Makefile Normal file
View File

@ -0,0 +1,52 @@
# SPDX-License-Identifier: GPL-2.0
gen := arch/$(ARCH)/include/generated
kapi := $(gen)/asm
uapi := $(gen)/uapi/asm
syscall := $(srctree)/$(src)/syscall.tbl
systbl := $(srctree)/$(src)/syscalltbl
gen-y := $(kapi)/syscall_table.h
kapi-hdrs-y := $(kapi)/unistd_nr.h
uapi-hdrs-y := $(uapi)/unistd_32.h
uapi-hdrs-y += $(uapi)/unistd_64.h
targets += $(addprefix ../../../,$(gen-y) $(kapi-hdrs-y) $(uapi-hdrs-y))
PHONY += kapi uapi
kapi: $(gen-y) $(kapi-hdrs-y)
uapi: $(uapi-hdrs-y)
# Create output directory if not already present
_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
$(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
define filechk_syshdr
$(CONFIG_SHELL) '$(systbl)' -H -a $(syshdr_abi_$(basetarget)) -f "$2"
endef
define filechk_sysnr
$(CONFIG_SHELL) '$(systbl)' -N -a $(sysnr_abi_$(basetarget))
endef
define filechk_syscalls
$(CONFIG_SHELL) '$(systbl)' -S
endef
syshdr_abi_unistd_32 := common,32
$(uapi)/unistd_32.h: $(syscall) FORCE
$(call filechk,syshdr,$@)
syshdr_abi_unistd_64 := common,64
$(uapi)/unistd_64.h: $(syscall) FORCE
$(call filechk,syshdr,$@)
$(kapi)/syscall_table.h: $(syscall) FORCE
$(call filechk,syscalls)
sysnr_abi_unistd_nr := common,32,64
$(kapi)/unistd_nr.h: $(syscall) FORCE
$(call filechk,sysnr)