1# SPDX-License-Identifier: GPL-2.0 2 3BPF_SAMPLES_PATH ?= $(abspath $(srctree)/$(src)) 4TOOLS_PATH := $(BPF_SAMPLES_PATH)/../../tools 5 6# List of programs to build 7hostprogs-y := test_lru_dist 8hostprogs-y += sock_example 9hostprogs-y += fds_example 10hostprogs-y += sockex1 11hostprogs-y += sockex2 12hostprogs-y += sockex3 13hostprogs-y += tracex1 14hostprogs-y += tracex2 15hostprogs-y += tracex3 16hostprogs-y += tracex4 17hostprogs-y += tracex5 18hostprogs-y += tracex6 19hostprogs-y += tracex7 20hostprogs-y += test_probe_write_user 21hostprogs-y += trace_output 22hostprogs-y += lathist 23hostprogs-y += offwaketime 24hostprogs-y += spintest 25hostprogs-y += map_perf_test 26hostprogs-y += test_overhead 27hostprogs-y += test_cgrp2_array_pin 28hostprogs-y += test_cgrp2_attach 29hostprogs-y += test_cgrp2_attach2 30hostprogs-y += test_cgrp2_sock 31hostprogs-y += test_cgrp2_sock2 32hostprogs-y += xdp1 33hostprogs-y += xdp2 34hostprogs-y += xdp_router_ipv4 35hostprogs-y += test_current_task_under_cgroup 36hostprogs-y += trace_event 37hostprogs-y += sampleip 38hostprogs-y += tc_l2_redirect 39hostprogs-y += lwt_len_hist 40hostprogs-y += xdp_tx_iptunnel 41hostprogs-y += test_map_in_map 42hostprogs-y += per_socket_stats_example 43hostprogs-y += load_sock_ops 44hostprogs-y += xdp_redirect 45hostprogs-y += xdp_redirect_map 46hostprogs-y += xdp_redirect_cpu 47hostprogs-y += xdp_monitor 48hostprogs-y += xdp_rxq_info 49hostprogs-y += syscall_tp 50hostprogs-y += cpustat 51hostprogs-y += xdp_adjust_tail 52hostprogs-y += xdpsock 53hostprogs-y += xdp_fwd 54 55# Libbpf dependencies 56LIBBPF = $(TOOLS_PATH)/lib/bpf/libbpf.a 57 58CGROUP_HELPERS := ../../tools/testing/selftests/bpf/cgroup_helpers.o 59TRACE_HELPERS := ../../tools/testing/selftests/bpf/trace_helpers.o 60 61test_lru_dist-objs := test_lru_dist.o $(LIBBPF) 62sock_example-objs := sock_example.o $(LIBBPF) 63fds_example-objs := bpf_load.o $(LIBBPF) fds_example.o 64sockex1-objs := bpf_load.o $(LIBBPF) sockex1_user.o 65sockex2-objs := bpf_load.o $(LIBBPF) sockex2_user.o 66sockex3-objs := bpf_load.o $(LIBBPF) sockex3_user.o 67tracex1-objs := bpf_load.o $(LIBBPF) tracex1_user.o 68tracex2-objs := bpf_load.o $(LIBBPF) tracex2_user.o 69tracex3-objs := bpf_load.o $(LIBBPF) tracex3_user.o 70tracex4-objs := bpf_load.o $(LIBBPF) tracex4_user.o 71tracex5-objs := bpf_load.o $(LIBBPF) tracex5_user.o 72tracex6-objs := bpf_load.o $(LIBBPF) tracex6_user.o 73tracex7-objs := bpf_load.o $(LIBBPF) tracex7_user.o 74load_sock_ops-objs := bpf_load.o $(LIBBPF) load_sock_ops.o 75test_probe_write_user-objs := bpf_load.o $(LIBBPF) test_probe_write_user_user.o 76trace_output-objs := bpf_load.o $(LIBBPF) trace_output_user.o $(TRACE_HELPERS) 77lathist-objs := bpf_load.o $(LIBBPF) lathist_user.o 78offwaketime-objs := bpf_load.o $(LIBBPF) offwaketime_user.o $(TRACE_HELPERS) 79spintest-objs := bpf_load.o $(LIBBPF) spintest_user.o $(TRACE_HELPERS) 80map_perf_test-objs := bpf_load.o $(LIBBPF) map_perf_test_user.o 81test_overhead-objs := bpf_load.o $(LIBBPF) test_overhead_user.o 82test_cgrp2_array_pin-objs := test_cgrp2_array_pin.o $(LIBBPF) 83test_cgrp2_attach-objs := test_cgrp2_attach.o $(LIBBPF) 84test_cgrp2_attach2-objs := test_cgrp2_attach2.o $(LIBBPF) $(CGROUP_HELPERS) 85test_cgrp2_sock-objs := test_cgrp2_sock.o $(LIBBPF) 86test_cgrp2_sock2-objs := bpf_load.o $(LIBBPF) test_cgrp2_sock2.o 87xdp1-objs := xdp1_user.o $(LIBBPF) 88# reuse xdp1 source intentionally 89xdp2-objs := xdp1_user.o $(LIBBPF) 90xdp_router_ipv4-objs := bpf_load.o $(LIBBPF) xdp_router_ipv4_user.o 91test_current_task_under_cgroup-objs := bpf_load.o $(LIBBPF) $(CGROUP_HELPERS) \ 92 test_current_task_under_cgroup_user.o 93trace_event-objs := bpf_load.o $(LIBBPF) trace_event_user.o $(TRACE_HELPERS) 94sampleip-objs := bpf_load.o $(LIBBPF) sampleip_user.o $(TRACE_HELPERS) 95tc_l2_redirect-objs := bpf_load.o $(LIBBPF) tc_l2_redirect_user.o 96lwt_len_hist-objs := bpf_load.o $(LIBBPF) lwt_len_hist_user.o 97xdp_tx_iptunnel-objs := bpf_load.o $(LIBBPF) xdp_tx_iptunnel_user.o 98test_map_in_map-objs := bpf_load.o $(LIBBPF) test_map_in_map_user.o 99per_socket_stats_example-objs := cookie_uid_helper_example.o $(LIBBPF) 100xdp_redirect-objs := bpf_load.o $(LIBBPF) xdp_redirect_user.o 101xdp_redirect_map-objs := bpf_load.o $(LIBBPF) xdp_redirect_map_user.o 102xdp_redirect_cpu-objs := bpf_load.o $(LIBBPF) xdp_redirect_cpu_user.o 103xdp_monitor-objs := bpf_load.o $(LIBBPF) xdp_monitor_user.o 104xdp_rxq_info-objs := xdp_rxq_info_user.o $(LIBBPF) 105syscall_tp-objs := bpf_load.o $(LIBBPF) syscall_tp_user.o 106cpustat-objs := bpf_load.o $(LIBBPF) cpustat_user.o 107xdp_adjust_tail-objs := xdp_adjust_tail_user.o $(LIBBPF) 108xdpsock-objs := bpf_load.o $(LIBBPF) xdpsock_user.o 109xdp_fwd-objs := bpf_load.o $(LIBBPF) xdp_fwd_user.o 110 111# Tell kbuild to always build the programs 112always := $(hostprogs-y) 113always += sockex1_kern.o 114always += sockex2_kern.o 115always += sockex3_kern.o 116always += tracex1_kern.o 117always += tracex2_kern.o 118always += tracex3_kern.o 119always += tracex4_kern.o 120always += tracex5_kern.o 121always += tracex6_kern.o 122always += tracex7_kern.o 123always += sock_flags_kern.o 124always += test_probe_write_user_kern.o 125always += trace_output_kern.o 126always += tcbpf1_kern.o 127always += tc_l2_redirect_kern.o 128always += lathist_kern.o 129always += offwaketime_kern.o 130always += spintest_kern.o 131always += map_perf_test_kern.o 132always += test_overhead_tp_kern.o 133always += test_overhead_raw_tp_kern.o 134always += test_overhead_kprobe_kern.o 135always += parse_varlen.o parse_simple.o parse_ldabs.o 136always += test_cgrp2_tc_kern.o 137always += xdp1_kern.o 138always += xdp2_kern.o 139always += xdp_router_ipv4_kern.o 140always += test_current_task_under_cgroup_kern.o 141always += trace_event_kern.o 142always += sampleip_kern.o 143always += lwt_len_hist_kern.o 144always += xdp_tx_iptunnel_kern.o 145always += test_map_in_map_kern.o 146always += cookie_uid_helper_example.o 147always += tcp_synrto_kern.o 148always += tcp_rwnd_kern.o 149always += tcp_bufs_kern.o 150always += tcp_cong_kern.o 151always += tcp_iw_kern.o 152always += tcp_clamp_kern.o 153always += tcp_basertt_kern.o 154always += xdp_redirect_kern.o 155always += xdp_redirect_map_kern.o 156always += xdp_redirect_cpu_kern.o 157always += xdp_monitor_kern.o 158always += xdp_rxq_info_kern.o 159always += xdp2skb_meta_kern.o 160always += syscall_tp_kern.o 161always += cpustat_kern.o 162always += xdp_adjust_tail_kern.o 163always += xdpsock_kern.o 164always += xdp_fwd_kern.o 165 166HOSTCFLAGS += -I$(objtree)/usr/include 167HOSTCFLAGS += -I$(srctree)/tools/lib/ 168HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/ 169HOSTCFLAGS += -I$(srctree)/tools/lib/ -I$(srctree)/tools/include 170HOSTCFLAGS += -I$(srctree)/tools/perf 171 172HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable 173HOSTCFLAGS_trace_helpers.o += -I$(srctree)/tools/lib/bpf/ 174 175HOSTCFLAGS_trace_output_user.o += -I$(srctree)/tools/lib/bpf/ 176HOSTCFLAGS_offwaketime_user.o += -I$(srctree)/tools/lib/bpf/ 177HOSTCFLAGS_spintest_user.o += -I$(srctree)/tools/lib/bpf/ 178HOSTCFLAGS_trace_event_user.o += -I$(srctree)/tools/lib/bpf/ 179HOSTCFLAGS_sampleip_user.o += -I$(srctree)/tools/lib/bpf/ 180 181HOSTLOADLIBES_test_lru_dist += -lelf 182HOSTLOADLIBES_sock_example += -lelf 183HOSTLOADLIBES_fds_example += -lelf 184HOSTLOADLIBES_sockex1 += -lelf 185HOSTLOADLIBES_sockex2 += -lelf 186HOSTLOADLIBES_sockex3 += -lelf 187HOSTLOADLIBES_tracex1 += -lelf 188HOSTLOADLIBES_tracex2 += -lelf 189HOSTLOADLIBES_tracex3 += -lelf 190HOSTLOADLIBES_tracex4 += -lelf -lrt 191HOSTLOADLIBES_tracex5 += -lelf 192HOSTLOADLIBES_tracex6 += -lelf 193HOSTLOADLIBES_tracex7 += -lelf 194HOSTLOADLIBES_test_cgrp2_array_pin += -lelf 195HOSTLOADLIBES_test_cgrp2_attach += -lelf 196HOSTLOADLIBES_test_cgrp2_attach2 += -lelf 197HOSTLOADLIBES_test_cgrp2_sock += -lelf 198HOSTLOADLIBES_test_cgrp2_sock2 += -lelf 199HOSTLOADLIBES_load_sock_ops += -lelf 200HOSTLOADLIBES_test_probe_write_user += -lelf 201HOSTLOADLIBES_trace_output += -lelf -lrt 202HOSTLOADLIBES_lathist += -lelf 203HOSTLOADLIBES_offwaketime += -lelf 204HOSTLOADLIBES_spintest += -lelf 205HOSTLOADLIBES_map_perf_test += -lelf -lrt 206HOSTLOADLIBES_test_overhead += -lelf -lrt 207HOSTLOADLIBES_xdp1 += -lelf 208HOSTLOADLIBES_xdp2 += -lelf 209HOSTLOADLIBES_xdp_router_ipv4 += -lelf 210HOSTLOADLIBES_test_current_task_under_cgroup += -lelf 211HOSTLOADLIBES_trace_event += -lelf 212HOSTLOADLIBES_sampleip += -lelf 213HOSTLOADLIBES_tc_l2_redirect += -l elf 214HOSTLOADLIBES_lwt_len_hist += -l elf 215HOSTLOADLIBES_xdp_tx_iptunnel += -lelf 216HOSTLOADLIBES_test_map_in_map += -lelf 217HOSTLOADLIBES_per_socket_stats_example += -lelf 218HOSTLOADLIBES_xdp_redirect += -lelf 219HOSTLOADLIBES_xdp_redirect_map += -lelf 220HOSTLOADLIBES_xdp_redirect_cpu += -lelf 221HOSTLOADLIBES_xdp_monitor += -lelf 222HOSTLOADLIBES_xdp_rxq_info += -lelf 223HOSTLOADLIBES_syscall_tp += -lelf 224HOSTLOADLIBES_cpustat += -lelf 225HOSTLOADLIBES_xdp_adjust_tail += -lelf 226HOSTLOADLIBES_xdpsock += -lelf -pthread 227HOSTLOADLIBES_xdp_fwd += -lelf 228 229# Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline: 230# make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang 231LLC ?= llc 232CLANG ?= clang 233 234# Detect that we're cross compiling and use the cross compiler 235ifdef CROSS_COMPILE 236HOSTCC = $(CROSS_COMPILE)gcc 237CLANG_ARCH_ARGS = -target $(ARCH) 238endif 239 240# Trick to allow make to be run from this directory 241all: 242 $(MAKE) -C ../../ $(CURDIR)/ BPF_SAMPLES_PATH=$(CURDIR) 243 244clean: 245 $(MAKE) -C ../../ M=$(CURDIR) clean 246 @rm -f *~ 247 248$(LIBBPF): FORCE 249# Fix up variables inherited from Kbuild that tools/ build system won't like 250 $(MAKE) -C $(dir $@) RM='rm -rf' LDFLAGS= srctree=$(BPF_SAMPLES_PATH)/../../ O= 251 252$(obj)/syscall_nrs.s: $(src)/syscall_nrs.c 253 $(call if_changed_dep,cc_s_c) 254 255$(obj)/syscall_nrs.h: $(obj)/syscall_nrs.s FORCE 256 $(call filechk,offsets,__SYSCALL_NRS_H__) 257 258clean-files += syscall_nrs.h 259 260FORCE: 261 262 263# Verify LLVM compiler tools are available and bpf target is supported by llc 264.PHONY: verify_cmds verify_target_bpf $(CLANG) $(LLC) 265 266verify_cmds: $(CLANG) $(LLC) 267 @for TOOL in $^ ; do \ 268 if ! (which -- "$${TOOL}" > /dev/null 2>&1); then \ 269 echo "*** ERROR: Cannot find LLVM tool $${TOOL}" ;\ 270 exit 1; \ 271 else true; fi; \ 272 done 273 274verify_target_bpf: verify_cmds 275 @if ! (${LLC} -march=bpf -mattr=help > /dev/null 2>&1); then \ 276 echo "*** ERROR: LLVM (${LLC}) does not support 'bpf' target" ;\ 277 echo " NOTICE: LLVM version >= 3.7.1 required" ;\ 278 exit 2; \ 279 else true; fi 280 281$(BPF_SAMPLES_PATH)/*.c: verify_target_bpf $(LIBBPF) 282$(src)/*.c: verify_target_bpf $(LIBBPF) 283 284$(obj)/tracex5_kern.o: $(obj)/syscall_nrs.h 285 286# asm/sysreg.h - inline assembly used by it is incompatible with llvm. 287# But, there is no easy way to fix it, so just exclude it since it is 288# useless for BPF samples. 289$(obj)/%.o: $(src)/%.c 290 $(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) -I$(obj) \ 291 -I$(srctree)/tools/testing/selftests/bpf/ \ 292 -D__KERNEL__ -Wno-unused-value -Wno-pointer-sign \ 293 -D__TARGET_ARCH_$(ARCH) -Wno-compare-distinct-pointer-types \ 294 -Wno-gnu-variable-sized-type-not-at-end \ 295 -Wno-address-of-packed-member -Wno-tautological-compare \ 296 -Wno-unknown-warning-option $(CLANG_ARCH_ARGS) \ 297 -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@ 298