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32 lines
817 B
Makefile
32 lines
817 B
Makefile
EXTRA_DIST= include bypass_filter.c filter.c lb.c vlan_filter.c xdp_filter.c \
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xdp_lb.c bpf_helpers.h hash_func01.h
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if BUILD_EBPF
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# Maintaining a local copy of UAPI linux/bpf.h
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BPF_CFLAGS = -Iinclude
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BPF_TARGETS = lb.bpf
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BPF_TARGETS += filter.bpf
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BPF_TARGETS += bypass_filter.bpf
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BPF_TARGETS += xdp_filter.bpf
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BPF_TARGETS += xdp_lb.bpf
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BPF_TARGETS += vlan_filter.bpf
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all: $(BPF_TARGETS)
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$(BPF_TARGETS): %.bpf: %.c
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# From C-code to LLVM-IR format suffix .ll (clang -S -emit-llvm)
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${CLANG} -Wall $(BPF_CFLAGS) -O2 \
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-I/usr/include/$(build_cpu)-$(build_os)/ \
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-D__KERNEL__ -D__ASM_SYSREG_H \
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-target bpf -S -emit-llvm $< -o ${@:.bpf=.ll}
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# From LLVM-IR to BPF-bytecode in ELF-obj file
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${LLC} -march=bpf -filetype=obj ${@:.bpf=.ll} -o $@
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${RM} ${@:.bpf=.ll}
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CLEANFILES = *.bpf *.ll
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endif
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