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In old days, the "host-progs" syntax was used for specifying host
programs. It was renamed to the current "hostprogs-y" in 2004.
It is typically useful in scripts/Makefile because it allows Kbuild to
selectively compile host programs based on the kernel configuration.
This commit renames like follows:
always -> always-y
hostprogs-y -> hostprogs
So, scripts/Makefile will look like this:
always-$(CONFIG_BUILD_BIN2C) += ...
always-$(CONFIG_KALLSYMS) += ...
...
hostprogs := $(always-y) $(always-m)
I think this makes more sense because a host program is always a host
program, irrespective of the kernel configuration. We want to specify
which ones to compile by CONFIG options, so always-y will be handier.
The "always", "hostprogs-y", "hostprogs-m" will be kept for backward
compatibility for a while.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
22 lines
615 B
Makefile
22 lines
615 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the Linux BPFILTER layer.
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#
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hostprogs := bpfilter_umh
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bpfilter_umh-objs := main.o
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KBUILD_HOSTCFLAGS += -I $(srctree)/tools/include/ -I $(srctree)/tools/include/uapi
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HOSTCC := $(CC)
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ifeq ($(CONFIG_BPFILTER_UMH), y)
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# builtin bpfilter_umh should be compiled with -static
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# since rootfs isn't mounted at the time of __init
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# function is called and do_execv won't find elf interpreter
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KBUILD_HOSTLDFLAGS += -static
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endif
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$(obj)/bpfilter_umh_blob.o: $(obj)/bpfilter_umh
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obj-$(CONFIG_BPFILTER_UMH) += bpfilter.o
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bpfilter-objs += bpfilter_kern.o bpfilter_umh_blob.o
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