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 test_socket_cookie test_cgroup_storage test_select_reuseport test_section_names \ 27 test_netcnt test_tcpnotify_user 28 29TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \ 30 test_pkt_md_access.o test_xdp_redirect.o test_xdp_meta.o sockmap_parse_prog.o \ 31 sockmap_verdict_prog.o dev_cgroup.o sample_ret0.o test_tracepoint.o \ 32 test_l4lb_noinline.o test_xdp_noinline.o test_stacktrace_map.o \ 33 test_tcpnotify_kern.o \ 34 sample_map_ret0.o test_tcpbpf_kern.o test_stacktrace_build_id.o \ 35 sockmap_tcp_msg_prog.o connect4_prog.o connect6_prog.o test_adjust_tail.o \ 36 test_btf_haskv.o test_btf_nokv.o test_sockmap_kern.o test_tunnel_kern.o \ 37 test_get_stack_rawtp.o test_sockmap_kern.o test_sockhash_kern.o \ 38 test_lwt_seg6local.o sendmsg4_prog.o sendmsg6_prog.o test_lirc_mode2_kern.o \ 39 get_cgroup_id_kern.o socket_cookie_prog.o test_select_reuseport_kern.o \ 40 test_skb_cgroup_id_kern.o bpf_flow.o netcnt_prog.o \ 41 test_sk_lookup_kern.o test_xdp_vlan.o test_queue_map.o test_stack_map.o \ 42 xdp_dummy.o test_map_in_map.o 43 44# Order correspond to 'make run_tests' order 45TEST_PROGS := test_kmod.sh \ 46 test_libbpf.sh \ 47 test_xdp_redirect.sh \ 48 test_xdp_meta.sh \ 49 test_offload.py \ 50 test_sock_addr.sh \ 51 test_tunnel.sh \ 52 test_lwt_seg6local.sh \ 53 test_lirc_mode2.sh \ 54 test_skb_cgroup_id.sh \ 55 test_flow_dissector.sh \ 56 test_xdp_vlan.sh 57 58TEST_PROGS_EXTENDED := with_addr.sh \ 59 tcp_client.py \ 60 tcp_server.py 61 62# Compile but not part of 'make run_tests' 63TEST_GEN_PROGS_EXTENDED = test_libbpf_open test_sock_addr test_skb_cgroup_id_user \ 64 flow_dissector_load test_flow_dissector 65 66include ../lib.mk 67 68BPFOBJ := $(OUTPUT)/libbpf.a 69 70$(TEST_GEN_PROGS): $(BPFOBJ) 71 72$(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/libbpf.a 73 74$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c 75$(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c 76$(OUTPUT)/test_sock: cgroup_helpers.c 77$(OUTPUT)/test_sock_addr: cgroup_helpers.c 78$(OUTPUT)/test_socket_cookie: cgroup_helpers.c 79$(OUTPUT)/test_sockmap: cgroup_helpers.c 80$(OUTPUT)/test_tcpbpf_user: cgroup_helpers.c 81$(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c 82$(OUTPUT)/test_progs: trace_helpers.c 83$(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c 84$(OUTPUT)/test_cgroup_storage: cgroup_helpers.c 85$(OUTPUT)/test_netcnt: cgroup_helpers.c 86 87.PHONY: force 88 89# force a rebuild of BPFOBJ when its dependencies are updated 90force: 91 92$(BPFOBJ): force 93 $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/ 94 95CLANG ?= clang 96LLC ?= llc 97LLVM_OBJCOPY ?= llvm-objcopy 98BTF_PAHOLE ?= pahole 99 100PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1) 101 102# Let newer LLVM versions transparently probe the kernel for availability 103# of full BPF instruction set. 104ifeq ($(PROBE),) 105 CPU ?= probe 106else 107 CPU ?= generic 108endif 109 110# Get Clang's default includes on this system, as opposed to those seen by 111# '-target bpf'. This fixes "missing" files on some architectures/distros, 112# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 113# 114# Use '-idirafter': Don't interfere with include mechanics except where the 115# build would have failed anyways. 116CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \ 117 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') 118 119CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \ 120 $(CLANG_SYS_INCLUDES) \ 121 -Wno-compare-distinct-pointer-types 122 123$(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline 124$(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline 125 126$(OUTPUT)/test_queue_map.o: test_queue_stack_map.h 127$(OUTPUT)/test_stack_map.o: test_queue_stack_map.h 128 129BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris) 130BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF) 131BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm') 132BTF_LLVM_PROBE := $(shell echo "int main() { return 0; }" | \ 133 $(CLANG) -target bpf -O2 -g -c -x c - -o ./llvm_btf_verify.o; \ 134 readelf -S ./llvm_btf_verify.o | grep BTF; \ 135 /bin/rm -f ./llvm_btf_verify.o) 136 137ifneq ($(BTF_LLVM_PROBE),) 138 CLANG_FLAGS += -g 139else 140ifneq ($(BTF_LLC_PROBE),) 141ifneq ($(BTF_PAHOLE_PROBE),) 142ifneq ($(BTF_OBJCOPY_PROBE),) 143 CLANG_FLAGS += -g 144 LLC_FLAGS += -mattr=dwarfris 145 DWARF2BTF = y 146endif 147endif 148endif 149endif 150 151# Have one program compiled without "-target bpf" to test whether libbpf loads 152# it successfully 153$(OUTPUT)/test_xdp.o: test_xdp.c 154 $(CLANG) $(CLANG_FLAGS) \ 155 -O2 -emit-llvm -c $< -o - | \ 156 $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@ 157ifeq ($(DWARF2BTF),y) 158 $(BTF_PAHOLE) -J $@ 159endif 160 161$(OUTPUT)/%.o: %.c 162 $(CLANG) $(CLANG_FLAGS) \ 163 -O2 -target bpf -emit-llvm -c $< -o - | \ 164 $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@ 165ifeq ($(DWARF2BTF),y) 166 $(BTF_PAHOLE) -J $@ 167endif 168 169EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) 170