57 lines
1.5 KiB
Makefile
57 lines
1.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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LIBDIR := ../../../lib
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BPFDIR := $(LIBDIR)/bpf
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APIDIR := ../../../include/uapi
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GENDIR := ../../../../include/generated
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GENHDR := $(GENDIR)/autoconf.h
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ifneq ($(wildcard $(GENHDR)),)
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GENFLAGS := -DHAVE_GENHDR
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endif
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CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
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LDLIBS += -lcap -lelf
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TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
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test_align test_verifier_log test_dev_cgroup
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TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \
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test_pkt_md_access.o test_xdp_redirect.o test_xdp_meta.o sockmap_parse_prog.o \
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sockmap_verdict_prog.o dev_cgroup.o sample_ret0.o
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TEST_PROGS := test_kmod.sh test_xdp_redirect.sh test_xdp_meta.sh \
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test_offload.py
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include ../lib.mk
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BPFOBJ := $(OUTPUT)/libbpf.a $(OUTPUT)/cgroup_helpers.c
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$(TEST_GEN_PROGS): $(BPFOBJ)
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.PHONY: force
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# force a rebuild of BPFOBJ when its dependencies are updated
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force:
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$(BPFOBJ): force
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$(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/
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CLANG ?= clang
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LLC ?= llc
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PROBE := $(shell llc -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
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# Let newer LLVM versions transparently probe the kernel for availability
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# of full BPF instruction set.
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ifeq ($(PROBE),)
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CPU ?= probe
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else
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CPU ?= generic
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endif
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%.o: %.c
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$(CLANG) -I. -I./include/uapi -I../../../include/uapi \
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-Wno-compare-distinct-pointer-types \
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-O2 -target bpf -emit-llvm -c $< -o - | \
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$(LLC) -march=bpf -mcpu=$(CPU) -filetype=obj -o $@
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