1eb8a49836
If the environment variable 'prefix' is set on the build host, it is
wrongly used as syscall macro prefixes.
$ export prefix=/usr
$ make -s defconfig all
In file included from ./arch/x86/include/asm/unistd.h:20,
from <stdin>:2:
./arch/x86/include/generated/uapi/asm/unistd_64.h:4:9: warning: missing whitespace after the macro name
4 | #define __NR_/usrread 0
| ^~~~~
arch/x86/entry/syscalls/Makefile should clear 'offset' and 'prefix'.
Fixes: 3cba325b358f ("x86/syscalls: Switch to generic syscallhdr.sh")
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210525115420.679416-1-masahiroy@kernel.org
80 lines
2.5 KiB
Makefile
80 lines
2.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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out := arch/$(SRCARCH)/include/generated/asm
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uapi := arch/$(SRCARCH)/include/generated/uapi/asm
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# Create output directory if not already present
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_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)') \
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$(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')
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syscall32 := $(src)/syscall_32.tbl
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syscall64 := $(src)/syscall_64.tbl
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syshdr := $(srctree)/scripts/syscallhdr.sh
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systbl := $(srctree)/scripts/syscalltbl.sh
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offset :=
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prefix :=
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quiet_cmd_syshdr = SYSHDR $@
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cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --abis $(abis) --emit-nr \
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$(if $(offset),--offset $(offset)) \
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$(if $(prefix),--prefix $(prefix)) \
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$< $@
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quiet_cmd_systbl = SYSTBL $@
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cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis $(abis) $< $@
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quiet_cmd_hypercalls = HYPERCALLS $@
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cmd_hypercalls = $(CONFIG_SHELL) '$<' $@ $(filter-out $<, $(real-prereqs))
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$(uapi)/unistd_32.h: abis := i386
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$(uapi)/unistd_32.h: $(syscall32) $(syshdr) FORCE
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$(call if_changed,syshdr)
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$(out)/unistd_32_ia32.h: abis := i386
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$(out)/unistd_32_ia32.h: prefix := ia32_
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$(out)/unistd_32_ia32.h: $(syscall32) $(syshdr) FORCE
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$(call if_changed,syshdr)
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$(uapi)/unistd_x32.h: abis := common,x32
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$(uapi)/unistd_x32.h: offset := __X32_SYSCALL_BIT
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$(uapi)/unistd_x32.h: $(syscall64) $(syshdr) FORCE
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$(call if_changed,syshdr)
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$(uapi)/unistd_64.h: abis := common,64
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$(uapi)/unistd_64.h: $(syscall64) $(syshdr) FORCE
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$(call if_changed,syshdr)
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$(out)/unistd_64_x32.h: abis := x32
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$(out)/unistd_64_x32.h: prefix := x32_
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$(out)/unistd_64_x32.h: $(syscall64) $(syshdr) FORCE
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$(call if_changed,syshdr)
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$(out)/syscalls_32.h: abis := i386
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$(out)/syscalls_32.h: $(syscall32) $(systbl) FORCE
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$(call if_changed,systbl)
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$(out)/syscalls_64.h: abis := common,64
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$(out)/syscalls_64.h: $(syscall64) $(systbl) FORCE
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$(call if_changed,systbl)
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$(out)/syscalls_x32.h: abis := common,x32
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$(out)/syscalls_x32.h: $(syscall64) $(systbl) FORCE
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$(call if_changed,systbl)
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$(out)/xen-hypercalls.h: $(srctree)/scripts/xen-hypercalls.sh FORCE
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$(call if_changed,hypercalls)
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$(out)/xen-hypercalls.h: $(srctree)/include/xen/interface/xen*.h
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uapisyshdr-y += unistd_32.h unistd_64.h unistd_x32.h
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syshdr-y += syscalls_32.h
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syshdr-$(CONFIG_X86_64) += unistd_32_ia32.h unistd_64_x32.h
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syshdr-$(CONFIG_X86_64) += syscalls_64.h
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syshdr-$(CONFIG_X86_X32) += syscalls_x32.h
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syshdr-$(CONFIG_XEN) += xen-hypercalls.h
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uapisyshdr-y := $(addprefix $(uapi)/, $(uapisyshdr-y))
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syshdr-y := $(addprefix $(out)/, $(syshdr-y))
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targets += $(addprefix ../../../../, $(uapisyshdr-y) $(syshdr-y))
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PHONY += all
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all: $(uapisyshdr-y) $(syshdr-y)
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@:
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