1 # SPDX-License-Identifier: GPL-2.0 2 3 BPF_SAMPLES_PATH ?= $(abspath $(srctree)/$(src)) 4 TOOLS_PATH := $(BPF_SAMPLES_PATH)/../../tools 5 6 # List of programs to build 7 hostprogs-y := test_lru_dist 8 hostprogs-y += sock_example 9 hostprogs-y += fds_example 10 hostprogs-y += sockex1 11 hostprogs-y += sockex2 12 hostprogs-y += sockex3 13 hostprogs-y += tracex1 14 hostprogs-y += tracex2 15 hostprogs-y += tracex3 16 hostprogs-y += tracex4 17 hostprogs-y += tracex5 18 hostprogs-y += tracex6 19 hostprogs-y += tracex7 20 hostprogs-y += test_probe_write_user 21 hostprogs-y += trace_output 22 hostprogs-y += lathist 23 hostprogs-y += offwaketime 24 hostprogs-y += spintest 25 hostprogs-y += map_perf_test 26 hostprogs-y += test_overhead 27 hostprogs-y += test_cgrp2_array_pin 28 hostprogs-y += test_cgrp2_attach 29 hostprogs-y += test_cgrp2_attach2 30 hostprogs-y += test_cgrp2_sock 31 hostprogs-y += test_cgrp2_sock2 32 hostprogs-y += xdp1 33 hostprogs-y += xdp2 34 hostprogs-y += xdp_router_ipv4 35 hostprogs-y += test_current_task_under_cgroup 36 hostprogs-y += trace_event 37 hostprogs-y += sampleip 38 hostprogs-y += tc_l2_redirect 39 hostprogs-y += lwt_len_hist 40 hostprogs-y += xdp_tx_iptunnel 41 hostprogs-y += test_map_in_map 42 hostprogs-y += per_socket_stats_example 43 hostprogs-y += load_sock_ops 44 hostprogs-y += xdp_redirect 45 hostprogs-y += xdp_redirect_map 46 hostprogs-y += xdp_redirect_cpu 47 hostprogs-y += xdp_monitor 48 hostprogs-y += xdp_rxq_info 49 hostprogs-y += syscall_tp 50 hostprogs-y += cpustat 51 hostprogs-y += xdp_adjust_tail 52 hostprogs-y += xdpsock 53 hostprogs-y += xdp_fwd 54 55 # Libbpf dependencies 56 LIBBPF = $(TOOLS_PATH)/lib/bpf/libbpf.a 57 58 CGROUP_HELPERS := ../../tools/testing/selftests/bpf/cgroup_helpers.o 59 TRACE_HELPERS := ../../tools/testing/selftests/bpf/trace_helpers.o 60 61 fds_example-objs := bpf_load.o fds_example.o 62 sockex1-objs := bpf_load.o sockex1_user.o 63 sockex2-objs := bpf_load.o sockex2_user.o 64 sockex3-objs := bpf_load.o sockex3_user.o 65 tracex1-objs := bpf_load.o tracex1_user.o 66 tracex2-objs := bpf_load.o tracex2_user.o 67 tracex3-objs := bpf_load.o tracex3_user.o 68 tracex4-objs := bpf_load.o tracex4_user.o 69 tracex5-objs := bpf_load.o tracex5_user.o 70 tracex6-objs := bpf_load.o tracex6_user.o 71 tracex7-objs := bpf_load.o tracex7_user.o 72 load_sock_ops-objs := bpf_load.o load_sock_ops.o 73 test_probe_write_user-objs := bpf_load.o test_probe_write_user_user.o 74 trace_output-objs := bpf_load.o trace_output_user.o $(TRACE_HELPERS) 75 lathist-objs := bpf_load.o lathist_user.o 76 offwaketime-objs := bpf_load.o offwaketime_user.o $(TRACE_HELPERS) 77 spintest-objs := bpf_load.o spintest_user.o $(TRACE_HELPERS) 78 map_perf_test-objs := bpf_load.o map_perf_test_user.o 79 test_overhead-objs := bpf_load.o test_overhead_user.o 80 test_cgrp2_array_pin-objs := test_cgrp2_array_pin.o 81 test_cgrp2_attach-objs := test_cgrp2_attach.o 82 test_cgrp2_attach2-objs := test_cgrp2_attach2.o $(CGROUP_HELPERS) 83 test_cgrp2_sock-objs := test_cgrp2_sock.o 84 test_cgrp2_sock2-objs := bpf_load.o test_cgrp2_sock2.o 85 xdp1-objs := xdp1_user.o 86 # reuse xdp1 source intentionally 87 xdp2-objs := xdp1_user.o 88 xdp_router_ipv4-objs := bpf_load.o xdp_router_ipv4_user.o 89 test_current_task_under_cgroup-objs := bpf_load.o $(CGROUP_HELPERS) \ 90 test_current_task_under_cgroup_user.o 91 trace_event-objs := bpf_load.o trace_event_user.o $(TRACE_HELPERS) 92 sampleip-objs := bpf_load.o sampleip_user.o $(TRACE_HELPERS) 93 tc_l2_redirect-objs := bpf_load.o tc_l2_redirect_user.o 94 lwt_len_hist-objs := bpf_load.o lwt_len_hist_user.o 95 xdp_tx_iptunnel-objs := bpf_load.o xdp_tx_iptunnel_user.o 96 test_map_in_map-objs := bpf_load.o test_map_in_map_user.o 97 per_socket_stats_example-objs := cookie_uid_helper_example.o 98 xdp_redirect-objs := bpf_load.o xdp_redirect_user.o 99 xdp_redirect_map-objs := bpf_load.o xdp_redirect_map_user.o 100 xdp_redirect_cpu-objs := bpf_load.o xdp_redirect_cpu_user.o 101 xdp_monitor-objs := bpf_load.o xdp_monitor_user.o 102 xdp_rxq_info-objs := xdp_rxq_info_user.o 103 syscall_tp-objs := bpf_load.o syscall_tp_user.o 104 cpustat-objs := bpf_load.o cpustat_user.o 105 xdp_adjust_tail-objs := xdp_adjust_tail_user.o 106 xdpsock-objs := bpf_load.o xdpsock_user.o 107 xdp_fwd-objs := bpf_load.o xdp_fwd_user.o 108 109 # Tell kbuild to always build the programs 110 always := $(hostprogs-y) 111 always += sockex1_kern.o 112 always += sockex2_kern.o 113 always += sockex3_kern.o 114 always += tracex1_kern.o 115 always += tracex2_kern.o 116 always += tracex3_kern.o 117 always += tracex4_kern.o 118 always += tracex5_kern.o 119 always += tracex6_kern.o 120 always += tracex7_kern.o 121 always += sock_flags_kern.o 122 always += test_probe_write_user_kern.o 123 always += trace_output_kern.o 124 always += tcbpf1_kern.o 125 always += tc_l2_redirect_kern.o 126 always += lathist_kern.o 127 always += offwaketime_kern.o 128 always += spintest_kern.o 129 always += map_perf_test_kern.o 130 always += test_overhead_tp_kern.o 131 always += test_overhead_raw_tp_kern.o 132 always += test_overhead_kprobe_kern.o 133 always += parse_varlen.o parse_simple.o parse_ldabs.o 134 always += test_cgrp2_tc_kern.o 135 always += xdp1_kern.o 136 always += xdp2_kern.o 137 always += xdp_router_ipv4_kern.o 138 always += test_current_task_under_cgroup_kern.o 139 always += trace_event_kern.o 140 always += sampleip_kern.o 141 always += lwt_len_hist_kern.o 142 always += xdp_tx_iptunnel_kern.o 143 always += test_map_in_map_kern.o 144 always += cookie_uid_helper_example.o 145 always += tcp_synrto_kern.o 146 always += tcp_rwnd_kern.o 147 always += tcp_bufs_kern.o 148 always += tcp_cong_kern.o 149 always += tcp_iw_kern.o 150 always += tcp_clamp_kern.o 151 always += tcp_basertt_kern.o 152 always += xdp_redirect_kern.o 153 always += xdp_redirect_map_kern.o 154 always += xdp_redirect_cpu_kern.o 155 always += xdp_monitor_kern.o 156 always += xdp_rxq_info_kern.o 157 always += xdp2skb_meta_kern.o 158 always += syscall_tp_kern.o 159 always += cpustat_kern.o 160 always += xdp_adjust_tail_kern.o 161 always += xdpsock_kern.o 162 always += xdp_fwd_kern.o 163 164 HOSTCFLAGS += -I$(objtree)/usr/include 165 HOSTCFLAGS += -I$(srctree)/tools/lib/ 166 HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/ 167 HOSTCFLAGS += -I$(srctree)/tools/lib/ -I$(srctree)/tools/include 168 HOSTCFLAGS += -I$(srctree)/tools/perf 169 170 HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable 171 HOSTCFLAGS_trace_helpers.o += -I$(srctree)/tools/lib/bpf/ 172 173 HOSTCFLAGS_trace_output_user.o += -I$(srctree)/tools/lib/bpf/ 174 HOSTCFLAGS_offwaketime_user.o += -I$(srctree)/tools/lib/bpf/ 175 HOSTCFLAGS_spintest_user.o += -I$(srctree)/tools/lib/bpf/ 176 HOSTCFLAGS_trace_event_user.o += -I$(srctree)/tools/lib/bpf/ 177 HOSTCFLAGS_sampleip_user.o += -I$(srctree)/tools/lib/bpf/ 178 179 HOST_LOADLIBES += $(LIBBPF) -lelf 180 HOSTLOADLIBES_tracex4 += -lrt 181 HOSTLOADLIBES_trace_output += -lrt 182 HOSTLOADLIBES_map_perf_test += -lrt 183 HOSTLOADLIBES_test_overhead += -lrt 184 HOSTLOADLIBES_xdpsock += -pthread 185 186 # Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline: 187 # make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang 188 LLC ?= llc 189 CLANG ?= clang 190 191 # Detect that we're cross compiling and use the cross compiler 192 ifdef CROSS_COMPILE 193 HOSTCC = $(CROSS_COMPILE)gcc 194 CLANG_ARCH_ARGS = -target $(ARCH) 195 endif 196 197 # Trick to allow make to be run from this directory 198 all: 199 $(MAKE) -C ../../ $(CURDIR)/ BPF_SAMPLES_PATH=$(CURDIR) 200 201 clean: 202 $(MAKE) -C ../../ M=$(CURDIR) clean 203 @rm -f *~ 204 205 $(LIBBPF): FORCE 206 # Fix up variables inherited from Kbuild that tools/ build system won't like 207 $(MAKE) -C $(dir $@) RM='rm -rf' LDFLAGS= srctree=$(BPF_SAMPLES_PATH)/../../ O= 208 209 $(obj)/syscall_nrs.s: $(src)/syscall_nrs.c 210 $(call if_changed_dep,cc_s_c) 211 212 $(obj)/syscall_nrs.h: $(obj)/syscall_nrs.s FORCE 213 $(call filechk,offsets,__SYSCALL_NRS_H__) 214 215 clean-files += syscall_nrs.h 216 217 FORCE: 218 219 220 # Verify LLVM compiler tools are available and bpf target is supported by llc 221 .PHONY: verify_cmds verify_target_bpf $(CLANG) $(LLC) 222 223 verify_cmds: $(CLANG) $(LLC) 224 @for TOOL in $^ ; do \ 225 if ! (which -- "$${TOOL}" > /dev/null 2>&1); then \ 226 echo "*** ERROR: Cannot find LLVM tool $${TOOL}" ;\ 227 exit 1; \ 228 else true; fi; \ 229 done 230 231 verify_target_bpf: verify_cmds 232 @if ! (${LLC} -march=bpf -mattr=help > /dev/null 2>&1); then \ 233 echo "*** ERROR: LLVM (${LLC}) does not support 'bpf' target" ;\ 234 echo " NOTICE: LLVM version >= 3.7.1 required" ;\ 235 exit 2; \ 236 else true; fi 237 238 $(BPF_SAMPLES_PATH)/*.c: verify_target_bpf $(LIBBPF) 239 $(src)/*.c: verify_target_bpf $(LIBBPF) 240 241 $(obj)/tracex5_kern.o: $(obj)/syscall_nrs.h 242 243 # asm/sysreg.h - inline assembly used by it is incompatible with llvm. 244 # But, there is no easy way to fix it, so just exclude it since it is 245 # useless for BPF samples. 246 $(obj)/%.o: $(src)/%.c 247 @echo " CLANG-bpf " $@ 248 $(Q)$(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) -I$(obj) \ 249 -I$(srctree)/tools/testing/selftests/bpf/ \ 250 -D__KERNEL__ -Wno-unused-value -Wno-pointer-sign \ 251 -D__TARGET_ARCH_$(ARCH) -Wno-compare-distinct-pointer-types \ 252 -Wno-gnu-variable-sized-type-not-at-end \ 253 -Wno-address-of-packed-member -Wno-tautological-compare \ 254 -Wno-unknown-warning-option $(CLANG_ARCH_ARGS) \ 255 -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@ 256