421780fd49
bpfilter Makefile assumes that the system locale is en_US, and the
parsing of objdump output fails.
Set LC_ALL=C and, while at it, rewrite the objdump parsing so it spawns
only 2 processes instead of 7.
Fixes: d2ba09c17a ("net: add skeleton of bpfilter kernel module")
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
35 lines
1.1 KiB
Makefile
35 lines
1.1 KiB
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-y := bpfilter_umh
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bpfilter_umh-objs := main.o
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HOSTCFLAGS += -I. -Itools/include/ -Itools/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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HOSTLDFLAGS += -static
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endif
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# a bit of elf magic to convert bpfilter_umh binary into a binary blob
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# inside bpfilter_umh.o elf file referenced by
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# _binary_net_bpfilter_bpfilter_umh_start symbol
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# which bpfilter_kern.c passes further into umh blob loader at run-time
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quiet_cmd_copy_umh = GEN $@
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cmd_copy_umh = echo ':' > $(obj)/.bpfilter_umh.o.cmd; \
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$(OBJCOPY) -I binary \
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`LC_ALL=C objdump -f net/bpfilter/bpfilter_umh \
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|awk -F' |,' '/file format/{print "-O",$$NF} \
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/^architecture:/{print "-B",$$2}'` \
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--rename-section .data=.init.rodata $< $@
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$(obj)/bpfilter_umh.o: $(obj)/bpfilter_umh
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$(call cmd,copy_umh)
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obj-$(CONFIG_BPFILTER_UMH) += bpfilter.o
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bpfilter-objs += bpfilter_kern.o bpfilter_umh.o
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