323 lines
10 KiB
Makefile
323 lines
10 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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include ../../../../scripts/Kbuild.include
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include ../../../scripts/Makefile.arch
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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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CLANG ?= clang
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LLC ?= llc
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LLVM_OBJCOPY ?= llvm-objcopy
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LLVM_READELF ?= llvm-readelf
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BTF_PAHOLE ?= pahole
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BPF_GCC ?= $(shell command -v bpf-gcc;)
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CFLAGS += -g -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(BPFDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include \
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-Dbpf_prog_load=bpf_prog_test_load \
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-Dbpf_load_program=bpf_test_load_program
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LDLIBS += -lcap -lelf -lrt -lpthread
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# Order correspond to 'make run_tests' order
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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 test_tcpbpf_user \
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test_sock test_btf test_sockmap get_cgroup_id_user test_socket_cookie \
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test_cgroup_storage test_select_reuseport test_section_names \
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test_netcnt test_tcpnotify_user test_sock_fields test_sysctl test_hashmap \
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test_btf_dump test_cgroup_attach xdping
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BPF_OBJ_FILES = $(patsubst %.c,%.o, $(notdir $(wildcard progs/*.c)))
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TEST_GEN_FILES = $(BPF_OBJ_FILES)
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BTF_C_FILES = $(wildcard progs/btf_dump_test_case_*.c)
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TEST_FILES = $(BTF_C_FILES)
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# Also test sub-register code-gen if LLVM has eBPF v3 processor support which
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# contains both ALU32 and JMP32 instructions.
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SUBREG_CODEGEN := $(shell echo "int cal(int a) { return a > 0; }" | \
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$(CLANG) -target bpf -O2 -emit-llvm -S -x c - -o - | \
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$(LLC) -mattr=+alu32 -mcpu=v3 2>&1 | \
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grep 'if w')
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ifneq ($(SUBREG_CODEGEN),)
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TEST_GEN_FILES += $(patsubst %.o,alu32/%.o, $(BPF_OBJ_FILES))
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endif
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ifneq ($(BPF_GCC),)
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TEST_GEN_FILES += $(patsubst %.o,bpf_gcc/%.o, $(BPF_OBJ_FILES))
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endif
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# Order correspond to 'make run_tests' order
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TEST_PROGS := test_kmod.sh \
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test_libbpf.sh \
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test_xdp_redirect.sh \
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test_xdp_meta.sh \
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test_xdp_veth.sh \
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test_offload.py \
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test_sock_addr.sh \
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test_tunnel.sh \
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test_lwt_seg6local.sh \
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test_lirc_mode2.sh \
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test_skb_cgroup_id.sh \
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test_flow_dissector.sh \
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test_xdp_vlan_mode_generic.sh \
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test_xdp_vlan_mode_native.sh \
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test_lwt_ip_encap.sh \
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test_tcp_check_syncookie.sh \
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test_tc_tunnel.sh \
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test_tc_edt.sh \
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test_xdping.sh \
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test_bpftool_build.sh
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TEST_PROGS_EXTENDED := with_addr.sh \
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with_tunnels.sh \
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tcp_client.py \
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tcp_server.py \
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test_xdp_vlan.sh
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# Compile but not part of 'make run_tests'
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TEST_GEN_PROGS_EXTENDED = test_libbpf_open test_sock_addr test_skb_cgroup_id_user \
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flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
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test_lirc_mode2_user
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include ../lib.mk
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# NOTE: $(OUTPUT) won't get default value if used before lib.mk
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TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
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all: $(TEST_CUSTOM_PROGS)
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$(OUTPUT)/urandom_read: $(OUTPUT)/%: %.c
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$(CC) -o $@ $< -Wl,--build-id
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$(OUTPUT)/test_stub.o: test_stub.c
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$(CC) $(TEST_PROGS_CFLAGS) $(CFLAGS) -c -o $@ $<
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BPFOBJ := $(OUTPUT)/libbpf.a
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$(TEST_GEN_PROGS): $(OUTPUT)/test_stub.o $(BPFOBJ)
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$(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(OUTPUT)/libbpf.a
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$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
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$(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c
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$(OUTPUT)/test_sock: cgroup_helpers.c
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$(OUTPUT)/test_sock_addr: cgroup_helpers.c
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$(OUTPUT)/test_socket_cookie: cgroup_helpers.c
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$(OUTPUT)/test_sockmap: cgroup_helpers.c
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$(OUTPUT)/test_tcpbpf_user: cgroup_helpers.c
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$(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c
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$(OUTPUT)/test_progs: cgroup_helpers.c trace_helpers.c
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$(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c
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$(OUTPUT)/test_cgroup_storage: cgroup_helpers.c
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$(OUTPUT)/test_netcnt: cgroup_helpers.c
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$(OUTPUT)/test_sock_fields: cgroup_helpers.c
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$(OUTPUT)/test_sysctl: cgroup_helpers.c
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$(OUTPUT)/test_cgroup_attach: cgroup_helpers.c
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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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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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# Get Clang's default includes on this system, as opposed to those seen by
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# '-target bpf'. This fixes "missing" files on some architectures/distros,
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# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
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#
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# Use '-idirafter': Don't interfere with include mechanics except where the
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# build would have failed anyways.
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define get_sys_includes
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$(shell $(1) -v -E - </dev/null 2>&1 \
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| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
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endef
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CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))
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BPF_CFLAGS = -I. -I./include/uapi -I../../../include/uapi \
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-I$(OUTPUT)/../usr/include -D__TARGET_ARCH_$(SRCARCH)
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CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
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-Wno-compare-distinct-pointer-types
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$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
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$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
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$(OUTPUT)/test_queue_map.o: test_queue_stack_map.h
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$(OUTPUT)/test_stack_map.o: test_queue_stack_map.h
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$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
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$(OUTPUT)/test_progs.o: flow_dissector_load.h
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BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris)
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BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF)
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BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm')
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BTF_LLVM_PROBE := $(shell echo "int main() { return 0; }" | \
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$(CLANG) -target bpf -O2 -g -c -x c - -o ./llvm_btf_verify.o; \
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$(LLVM_READELF) -S ./llvm_btf_verify.o | grep BTF; \
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/bin/rm -f ./llvm_btf_verify.o)
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ifneq ($(BTF_LLVM_PROBE),)
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BPF_CFLAGS += -g
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else
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ifneq ($(BTF_LLC_PROBE),)
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ifneq ($(BTF_PAHOLE_PROBE),)
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ifneq ($(BTF_OBJCOPY_PROBE),)
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BPF_CFLAGS += -g
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LLC_FLAGS += -mattr=dwarfris
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DWARF2BTF = y
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endif
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endif
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endif
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endif
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TEST_PROGS_CFLAGS := -I. -I$(OUTPUT)
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TEST_MAPS_CFLAGS := -I. -I$(OUTPUT)
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TEST_VERIFIER_CFLAGS := -I. -I$(OUTPUT) -Iverifier
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ifneq ($(SUBREG_CODEGEN),)
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ALU32_BUILD_DIR = $(OUTPUT)/alu32
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TEST_CUSTOM_PROGS += $(ALU32_BUILD_DIR)/test_progs_32
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$(ALU32_BUILD_DIR):
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mkdir -p $@
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$(ALU32_BUILD_DIR)/urandom_read: $(OUTPUT)/urandom_read | $(ALU32_BUILD_DIR)
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cp $< $@
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$(ALU32_BUILD_DIR)/test_progs_32: test_progs.c $(OUTPUT)/libbpf.a\
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$(ALU32_BUILD_DIR)/urandom_read \
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| $(ALU32_BUILD_DIR)
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$(CC) $(TEST_PROGS_CFLAGS) $(CFLAGS) \
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-o $(ALU32_BUILD_DIR)/test_progs_32 \
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test_progs.c test_stub.c cgroup_helpers.c trace_helpers.c prog_tests/*.c \
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$(OUTPUT)/libbpf.a $(LDLIBS)
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$(ALU32_BUILD_DIR)/test_progs_32: $(PROG_TESTS_H)
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$(ALU32_BUILD_DIR)/test_progs_32: prog_tests/*.c
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$(ALU32_BUILD_DIR)/%.o: progs/%.c $(ALU32_BUILD_DIR)/test_progs_32 \
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| $(ALU32_BUILD_DIR)
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($(CLANG) $(BPF_CFLAGS) $(CLANG_CFLAGS) -O2 -target bpf -emit-llvm \
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-c $< -o - || echo "clang failed") | \
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$(LLC) -march=bpf -mattr=+alu32 -mcpu=$(CPU) $(LLC_FLAGS) \
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-filetype=obj -o $@
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ifeq ($(DWARF2BTF),y)
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$(BTF_PAHOLE) -J $@
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endif
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endif
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ifneq ($(BPF_GCC),)
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GCC_SYS_INCLUDES = $(call get_sys_includes,gcc)
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IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
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grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
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ifeq ($(IS_LITTLE_ENDIAN),)
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MENDIAN=-mbig-endian
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else
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MENDIAN=-mlittle-endian
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endif
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BPF_GCC_CFLAGS = $(GCC_SYS_INCLUDES) $(MENDIAN)
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BPF_GCC_BUILD_DIR = $(OUTPUT)/bpf_gcc
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TEST_CUSTOM_PROGS += $(BPF_GCC_BUILD_DIR)/test_progs_bpf_gcc
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$(BPF_GCC_BUILD_DIR):
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mkdir -p $@
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$(BPF_GCC_BUILD_DIR)/urandom_read: $(OUTPUT)/urandom_read | $(BPF_GCC_BUILD_DIR)
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cp $< $@
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$(BPF_GCC_BUILD_DIR)/test_progs_bpf_gcc: $(OUTPUT)/test_progs \
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| $(BPF_GCC_BUILD_DIR)
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cp $< $@
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$(BPF_GCC_BUILD_DIR)/%.o: progs/%.c $(BPF_GCC_BUILD_DIR)/test_progs_bpf_gcc \
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| $(BPF_GCC_BUILD_DIR)
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$(BPF_GCC) $(BPF_CFLAGS) $(BPF_GCC_CFLAGS) -O2 -c $< -o $@
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endif
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# Have one program compiled without "-target bpf" to test whether libbpf loads
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# it successfully
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$(OUTPUT)/test_xdp.o: progs/test_xdp.c
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($(CLANG) $(BPF_CFLAGS) $(CLANG_CFLAGS) -O2 -emit-llvm -c $< -o - || \
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echo "clang failed") | \
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$(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@
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ifeq ($(DWARF2BTF),y)
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$(BTF_PAHOLE) -J $@
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endif
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$(OUTPUT)/%.o: progs/%.c
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($(CLANG) $(BPF_CFLAGS) $(CLANG_CFLAGS) -O2 -target bpf -emit-llvm \
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-c $< -o - || echo "clang failed") | \
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$(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@
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ifeq ($(DWARF2BTF),y)
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$(BTF_PAHOLE) -J $@
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endif
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PROG_TESTS_DIR = $(OUTPUT)/prog_tests
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$(PROG_TESTS_DIR):
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mkdir -p $@
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PROG_TESTS_H := $(PROG_TESTS_DIR)/tests.h
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PROG_TESTS_FILES := $(wildcard prog_tests/*.c)
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test_progs.c: $(PROG_TESTS_H)
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$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)
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$(OUTPUT)/test_progs: test_progs.c $(PROG_TESTS_FILES) | $(PROG_TESTS_H)
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$(PROG_TESTS_H): $(PROG_TESTS_FILES) | $(PROG_TESTS_DIR)
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$(shell ( cd prog_tests/; \
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echo '/* Generated header, do not edit */'; \
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ls *.c 2> /dev/null | \
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sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@'; \
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) > $(PROG_TESTS_H))
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MAP_TESTS_DIR = $(OUTPUT)/map_tests
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$(MAP_TESTS_DIR):
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mkdir -p $@
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MAP_TESTS_H := $(MAP_TESTS_DIR)/tests.h
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MAP_TESTS_FILES := $(wildcard map_tests/*.c)
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test_maps.c: $(MAP_TESTS_H)
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$(OUTPUT)/test_maps: CFLAGS += $(TEST_MAPS_CFLAGS)
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$(OUTPUT)/test_maps: test_maps.c $(MAP_TESTS_FILES) | $(MAP_TESTS_H)
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$(MAP_TESTS_H): $(MAP_TESTS_FILES) | $(MAP_TESTS_DIR)
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$(shell ( cd map_tests/; \
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echo '/* Generated header, do not edit */'; \
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echo '#ifdef DECLARE'; \
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ls *.c 2> /dev/null | \
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sed -e 's@\([^\.]*\)\.c@extern void test_\1(void);@'; \
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echo '#endif'; \
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echo '#ifdef CALL'; \
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ls *.c 2> /dev/null | \
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sed -e 's@\([^\.]*\)\.c@test_\1();@'; \
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echo '#endif' \
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) > $(MAP_TESTS_H))
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VERIFIER_TESTS_DIR = $(OUTPUT)/verifier
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$(VERIFIER_TESTS_DIR):
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mkdir -p $@
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VERIFIER_TESTS_H := $(VERIFIER_TESTS_DIR)/tests.h
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VERIFIER_TEST_FILES := $(wildcard verifier/*.c)
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test_verifier.c: $(VERIFIER_TESTS_H)
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$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)
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$(OUTPUT)/test_verifier: test_verifier.c | $(VERIFIER_TEST_FILES) $(VERIFIER_TESTS_H)
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$(VERIFIER_TESTS_H): $(VERIFIER_TEST_FILES) | $(VERIFIER_TESTS_DIR)
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$(shell ( cd verifier/; \
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echo '/* Generated header, do not edit */'; \
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echo '#ifdef FILL_ARRAY'; \
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ls *.c 2> /dev/null | \
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sed -e 's@\(.*\)@#include \"\1\"@'; \
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echo '#endif' \
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) > $(VERIFIER_TESTS_H))
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EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(ALU32_BUILD_DIR) $(BPF_GCC_BUILD_DIR) \
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$(VERIFIER_TESTS_H) $(PROG_TESTS_H) $(MAP_TESTS_H) \
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feature
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