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$(LIBDIR) -I$(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): urandom_read 20 21urandom_read: urandom_read.c 22 $(CC) -o $(TEST_CUSTOM_PROGS) -static $< 23 24# Order correspond to 'make run_tests' order 25TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ 26 test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \ 27 test_sock test_sock_addr test_btf 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 sample_map_ret0.o test_tcpbpf_kern.o test_stacktrace_build_id.o \ 34 sockmap_tcp_msg_prog.o connect4_prog.o connect6_prog.o test_adjust_tail.o \ 35 test_btf_haskv.o test_btf_nokv.o 36 37# Order correspond to 'make run_tests' order 38TEST_PROGS := test_kmod.sh \ 39 test_libbpf.sh \ 40 test_xdp_redirect.sh \ 41 test_xdp_meta.sh \ 42 test_offload.py \ 43 test_sock_addr.sh 44 45# Compile but not part of 'make run_tests' 46TEST_GEN_PROGS_EXTENDED = test_libbpf_open 47 48include ../lib.mk 49 50BPFOBJ := $(OUTPUT)/libbpf.a 51 52$(TEST_GEN_PROGS): $(BPFOBJ) 53 54$(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/libbpf.a 55 56$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c 57$(OUTPUT)/test_sock: cgroup_helpers.c 58$(OUTPUT)/test_sock_addr: cgroup_helpers.c 59 60.PHONY: force 61 62# force a rebuild of BPFOBJ when its dependencies are updated 63force: 64 65$(BPFOBJ): force 66 $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/ 67 68CLANG ?= clang 69LLC ?= llc 70LLVM_OBJCOPY ?= llvm-objcopy 71BTF_PAHOLE ?= pahole 72 73PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1) 74 75# Let newer LLVM versions transparently probe the kernel for availability 76# of full BPF instruction set. 77ifeq ($(PROBE),) 78 CPU ?= probe 79else 80 CPU ?= generic 81endif 82 83CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \ 84 -Wno-compare-distinct-pointer-types 85 86$(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline 87$(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline 88 89BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help |& grep dwarfris) 90BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help |& grep BTF) 91BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --version |& grep LLVM) 92 93ifneq ($(BTF_LLC_PROBE),) 94ifneq ($(BTF_PAHOLE_PROBE),) 95ifneq ($(BTF_OBJCOPY_PROBE),) 96 CLANG_FLAGS += -g 97 LLC_FLAGS += -mattr=dwarfris 98 DWARF2BTF = y 99endif 100endif 101endif 102 103$(OUTPUT)/%.o: %.c 104 $(CLANG) $(CLANG_FLAGS) \ 105 -O2 -target bpf -emit-llvm -c $< -o - | \ 106 $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@ 107ifeq ($(DWARF2BTF),y) 108 $(BTF_PAHOLE) -J $@ 109endif 110 111EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) 112