1# SPDX-License-Identifier: GPL-2.0 2 3LIBDIR := ../../../lib 4BPFDIR := $(LIBDIR)/bpf 5APIDIR := ../../../include/uapi 6GENDIR := ../../../../include/generated 7GENHDR := $(GENDIR)/autoconf.h 8 9ifneq ($(wildcard $(GENHDR)),) 10 GENFLAGS := -DHAVE_GENHDR 11endif 12 13CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(BPFDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include 14LDLIBS += -lcap -lelf -lrt -lpthread 15 16TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read 17all: $(TEST_CUSTOM_PROGS) 18 19$(TEST_CUSTOM_PROGS): $(OUTPUT)/%: %.c 20 $(CC) -o $(TEST_CUSTOM_PROGS) -static $< -Wl,--build-id 21 22# Order correspond to 'make run_tests' order 23TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ 24 test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \ 25 test_sock test_btf test_sockmap test_lirc_mode2_user get_cgroup_id_user 26 27TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \ 28 test_pkt_md_access.o test_xdp_redirect.o test_xdp_meta.o sockmap_parse_prog.o \ 29 sockmap_verdict_prog.o dev_cgroup.o sample_ret0.o test_tracepoint.o \ 30 test_l4lb_noinline.o test_xdp_noinline.o test_stacktrace_map.o \ 31 sample_map_ret0.o test_tcpbpf_kern.o test_stacktrace_build_id.o \ 32 sockmap_tcp_msg_prog.o connect4_prog.o connect6_prog.o test_adjust_tail.o \ 33 test_btf_haskv.o test_btf_nokv.o test_sockmap_kern.o test_tunnel_kern.o \ 34 test_get_stack_rawtp.o test_sockmap_kern.o test_sockhash_kern.o \ 35 test_lwt_seg6local.o sendmsg4_prog.o sendmsg6_prog.o test_lirc_mode2_kern.o \ 36 get_cgroup_id_kern.o 37 38# Order correspond to 'make run_tests' order 39TEST_PROGS := test_kmod.sh \ 40 test_libbpf.sh \ 41 test_xdp_redirect.sh \ 42 test_xdp_meta.sh \ 43 test_offload.py \ 44 test_sock_addr.sh \ 45 test_tunnel.sh \ 46 test_lwt_seg6local.sh \ 47 test_lirc_mode2.sh 48 49# Compile but not part of 'make run_tests' 50TEST_GEN_PROGS_EXTENDED = test_libbpf_open test_sock_addr 51 52include ../lib.mk 53 54BPFOBJ := $(OUTPUT)/libbpf.a 55 56$(TEST_GEN_PROGS): $(BPFOBJ) 57 58$(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/libbpf.a 59 60$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c 61$(OUTPUT)/test_sock: cgroup_helpers.c 62$(OUTPUT)/test_sock_addr: cgroup_helpers.c 63$(OUTPUT)/test_sockmap: cgroup_helpers.c 64$(OUTPUT)/test_tcpbpf_user: cgroup_helpers.c 65$(OUTPUT)/test_progs: trace_helpers.c 66$(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c 67 68.PHONY: force 69 70# force a rebuild of BPFOBJ when its dependencies are updated 71force: 72 73$(BPFOBJ): force 74 $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/ 75 76CLANG ?= clang 77LLC ?= llc 78LLVM_OBJCOPY ?= llvm-objcopy 79BTF_PAHOLE ?= pahole 80 81PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1) 82 83# Let newer LLVM versions transparently probe the kernel for availability 84# of full BPF instruction set. 85ifeq ($(PROBE),) 86 CPU ?= probe 87else 88 CPU ?= generic 89endif 90 91# Get Clang's default includes on this system, as opposed to those seen by 92# '-target bpf'. This fixes "missing" files on some architectures/distros, 93# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 94# 95# Use '-idirafter': Don't interfere with include mechanics except where the 96# build would have failed anyways. 97CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \ 98 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') 99 100CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \ 101 $(CLANG_SYS_INCLUDES) \ 102 -Wno-compare-distinct-pointer-types 103 104$(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline 105$(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline 106 107BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris) 108BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF) 109BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --version 2>&1 | grep LLVM) 110 111ifneq ($(BTF_LLC_PROBE),) 112ifneq ($(BTF_PAHOLE_PROBE),) 113ifneq ($(BTF_OBJCOPY_PROBE),) 114 CLANG_FLAGS += -g 115 LLC_FLAGS += -mattr=dwarfris 116 DWARF2BTF = y 117endif 118endif 119endif 120 121$(OUTPUT)/%.o: %.c 122 $(CLANG) $(CLANG_FLAGS) \ 123 -O2 -target bpf -emit-llvm -c $< -o - | \ 124 $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@ 125ifeq ($(DWARF2BTF),y) 126 $(BTF_PAHOLE) -J $@ 127endif 128 129EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) 130