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Diffstat (limited to 'tools/testing/selftests/bpf/Makefile')
| -rw-r--r-- | tools/testing/selftests/bpf/Makefile | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile new file mode 100644 index 000000000..f3f874ba1 --- /dev/null +++ b/tools/testing/selftests/bpf/Makefile @@ -0,0 +1,145 @@ +# SPDX-License-Identifier: GPL-2.0 + +LIBDIR := ../../../lib +BPFDIR := $(LIBDIR)/bpf +APIDIR := ../../../include/uapi +GENDIR := ../../../../include/generated +GENHDR := $(GENDIR)/autoconf.h + +ifneq ($(wildcard $(GENHDR)),) + GENFLAGS := -DHAVE_GENHDR +endif + +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(BPFDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include +LDLIBS += -lcap -lelf -lrt -lpthread + +TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read +all: $(TEST_CUSTOM_PROGS) + +$(TEST_CUSTOM_PROGS): $(OUTPUT)/%: %.c + $(CC) -o $(TEST_CUSTOM_PROGS) -static $< -Wl,--build-id + +# Order correspond to 'make run_tests' order +TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ + test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \ + test_sock test_btf test_sockmap test_lirc_mode2_user get_cgroup_id_user \ + test_socket_cookie test_cgroup_storage test_select_reuseport + +TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \ + test_pkt_md_access.o test_xdp_redirect.o test_xdp_meta.o sockmap_parse_prog.o \ + sockmap_verdict_prog.o dev_cgroup.o sample_ret0.o test_tracepoint.o \ + test_l4lb_noinline.o test_xdp_noinline.o test_stacktrace_map.o \ + sample_map_ret0.o test_tcpbpf_kern.o test_stacktrace_build_id.o \ + sockmap_tcp_msg_prog.o connect4_prog.o connect6_prog.o test_adjust_tail.o \ + test_btf_haskv.o test_btf_nokv.o test_sockmap_kern.o test_tunnel_kern.o \ + test_get_stack_rawtp.o test_sockmap_kern.o test_sockhash_kern.o \ + test_lwt_seg6local.o sendmsg4_prog.o sendmsg6_prog.o test_lirc_mode2_kern.o \ + get_cgroup_id_kern.o socket_cookie_prog.o test_select_reuseport_kern.o \ + test_skb_cgroup_id_kern.o + +# Order correspond to 'make run_tests' order +TEST_PROGS := test_kmod.sh \ + test_libbpf.sh \ + test_xdp_redirect.sh \ + test_xdp_meta.sh \ + test_offload.py \ + test_sock_addr.sh \ + test_tunnel.sh \ + test_lwt_seg6local.sh \ + test_lirc_mode2.sh \ + test_skb_cgroup_id.sh + +# Compile but not part of 'make run_tests' +TEST_GEN_PROGS_EXTENDED = test_libbpf_open test_sock_addr test_skb_cgroup_id_user + +include ../lib.mk + +BPFOBJ := $(OUTPUT)/libbpf.a + +$(TEST_GEN_PROGS): $(BPFOBJ) + +$(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/libbpf.a + +$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c +$(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c +$(OUTPUT)/test_sock: cgroup_helpers.c +$(OUTPUT)/test_sock_addr: cgroup_helpers.c +$(OUTPUT)/test_socket_cookie: cgroup_helpers.c +$(OUTPUT)/test_sockmap: cgroup_helpers.c +$(OUTPUT)/test_tcpbpf_user: cgroup_helpers.c +$(OUTPUT)/test_progs: trace_helpers.c +$(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c +$(OUTPUT)/test_cgroup_storage: cgroup_helpers.c + +.PHONY: force + +# force a rebuild of BPFOBJ when its dependencies are updated +force: + +$(BPFOBJ): force + $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/ + +CLANG ?= clang +LLC ?= llc +LLVM_OBJCOPY ?= llvm-objcopy +BTF_PAHOLE ?= pahole + +PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1) + +# Let newer LLVM versions transparently probe the kernel for availability +# of full BPF instruction set. +ifeq ($(PROBE),) + CPU ?= probe +else + CPU ?= generic +endif + +# Get Clang's default includes on this system, as opposed to those seen by +# '-target bpf'. This fixes "missing" files on some architectures/distros, +# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. +# +# Use '-idirafter': Don't interfere with include mechanics except where the +# build would have failed anyways. +CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \ + | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') + +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \ + $(CLANG_SYS_INCLUDES) \ + -Wno-compare-distinct-pointer-types + +$(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline +$(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline + +BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris) +BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF) +BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm') + +ifneq ($(BTF_LLC_PROBE),) +ifneq ($(BTF_PAHOLE_PROBE),) +ifneq ($(BTF_OBJCOPY_PROBE),) + CLANG_FLAGS += -g + LLC_FLAGS += -mattr=dwarfris + DWARF2BTF = y +endif +endif +endif + +# Have one program compiled without "-target bpf" to test whether libbpf loads +# it successfully +$(OUTPUT)/test_xdp.o: test_xdp.c + $(CLANG) $(CLANG_FLAGS) \ + -O2 -emit-llvm -c $< -o - | \ + $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@ +ifeq ($(DWARF2BTF),y) + $(BTF_PAHOLE) -J $@ +endif + +$(OUTPUT)/%.o: %.c + $(CLANG) $(CLANG_FLAGS) \ + -O2 -target bpf -emit-llvm -c $< -o - | \ + $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@ +ifeq ($(DWARF2BTF),y) + $(BTF_PAHOLE) -J $@ +endif + +EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) |