1# SPDX-License-Identifier: GPL-2.0 2# List of programs to build 3hostprogs-y := test_lru_dist 4hostprogs-y += sock_example 5hostprogs-y += fds_example 6hostprogs-y += sockex1 7hostprogs-y += sockex2 8hostprogs-y += sockex3 9hostprogs-y += tracex1 10hostprogs-y += tracex2 11hostprogs-y += tracex3 12hostprogs-y += tracex4 13hostprogs-y += tracex5 14hostprogs-y += tracex6 15hostprogs-y += tracex7 16hostprogs-y += test_probe_write_user 17hostprogs-y += trace_output 18hostprogs-y += lathist 19hostprogs-y += offwaketime 20hostprogs-y += spintest 21hostprogs-y += map_perf_test 22hostprogs-y += test_overhead 23hostprogs-y += test_cgrp2_array_pin 24hostprogs-y += test_cgrp2_attach 25hostprogs-y += test_cgrp2_attach2 26hostprogs-y += test_cgrp2_sock 27hostprogs-y += test_cgrp2_sock2 28hostprogs-y += xdp1 29hostprogs-y += xdp2 30hostprogs-y += xdp_router_ipv4 31hostprogs-y += test_current_task_under_cgroup 32hostprogs-y += trace_event 33hostprogs-y += sampleip 34hostprogs-y += tc_l2_redirect 35hostprogs-y += lwt_len_hist 36hostprogs-y += xdp_tx_iptunnel 37hostprogs-y += test_map_in_map 38hostprogs-y += per_socket_stats_example 39hostprogs-y += load_sock_ops 40hostprogs-y += xdp_redirect 41hostprogs-y += xdp_redirect_map 42hostprogs-y += xdp_redirect_cpu 43hostprogs-y += xdp_monitor 44hostprogs-y += xdp_rxq_info 45hostprogs-y += syscall_tp 46hostprogs-y += cpustat 47 48# Libbpf dependencies 49LIBBPF := ../../tools/lib/bpf/bpf.o ../../tools/lib/bpf/nlattr.o 50CGROUP_HELPERS := ../../tools/testing/selftests/bpf/cgroup_helpers.o 51 52test_lru_dist-objs := test_lru_dist.o $(LIBBPF) 53sock_example-objs := sock_example.o $(LIBBPF) 54fds_example-objs := bpf_load.o $(LIBBPF) fds_example.o 55sockex1-objs := bpf_load.o $(LIBBPF) sockex1_user.o 56sockex2-objs := bpf_load.o $(LIBBPF) sockex2_user.o 57sockex3-objs := bpf_load.o $(LIBBPF) sockex3_user.o 58tracex1-objs := bpf_load.o $(LIBBPF) tracex1_user.o 59tracex2-objs := bpf_load.o $(LIBBPF) tracex2_user.o 60tracex3-objs := bpf_load.o $(LIBBPF) tracex3_user.o 61tracex4-objs := bpf_load.o $(LIBBPF) tracex4_user.o 62tracex5-objs := bpf_load.o $(LIBBPF) tracex5_user.o 63tracex6-objs := bpf_load.o $(LIBBPF) tracex6_user.o 64tracex7-objs := bpf_load.o $(LIBBPF) tracex7_user.o 65load_sock_ops-objs := bpf_load.o $(LIBBPF) load_sock_ops.o 66test_probe_write_user-objs := bpf_load.o $(LIBBPF) test_probe_write_user_user.o 67trace_output-objs := bpf_load.o $(LIBBPF) trace_output_user.o 68lathist-objs := bpf_load.o $(LIBBPF) lathist_user.o 69offwaketime-objs := bpf_load.o $(LIBBPF) offwaketime_user.o 70spintest-objs := bpf_load.o $(LIBBPF) spintest_user.o 71map_perf_test-objs := bpf_load.o $(LIBBPF) map_perf_test_user.o 72test_overhead-objs := bpf_load.o $(LIBBPF) test_overhead_user.o 73test_cgrp2_array_pin-objs := $(LIBBPF) test_cgrp2_array_pin.o 74test_cgrp2_attach-objs := $(LIBBPF) test_cgrp2_attach.o 75test_cgrp2_attach2-objs := $(LIBBPF) test_cgrp2_attach2.o $(CGROUP_HELPERS) 76test_cgrp2_sock-objs := $(LIBBPF) test_cgrp2_sock.o 77test_cgrp2_sock2-objs := bpf_load.o $(LIBBPF) test_cgrp2_sock2.o 78xdp1-objs := bpf_load.o $(LIBBPF) xdp1_user.o 79# reuse xdp1 source intentionally 80xdp2-objs := bpf_load.o $(LIBBPF) xdp1_user.o 81xdp_router_ipv4-objs := bpf_load.o $(LIBBPF) xdp_router_ipv4_user.o 82test_current_task_under_cgroup-objs := bpf_load.o $(LIBBPF) $(CGROUP_HELPERS) \ 83 test_current_task_under_cgroup_user.o 84trace_event-objs := bpf_load.o $(LIBBPF) trace_event_user.o 85sampleip-objs := bpf_load.o $(LIBBPF) sampleip_user.o 86tc_l2_redirect-objs := bpf_load.o $(LIBBPF) tc_l2_redirect_user.o 87lwt_len_hist-objs := bpf_load.o $(LIBBPF) lwt_len_hist_user.o 88xdp_tx_iptunnel-objs := bpf_load.o $(LIBBPF) xdp_tx_iptunnel_user.o 89test_map_in_map-objs := bpf_load.o $(LIBBPF) test_map_in_map_user.o 90per_socket_stats_example-objs := $(LIBBPF) cookie_uid_helper_example.o 91xdp_redirect-objs := bpf_load.o $(LIBBPF) xdp_redirect_user.o 92xdp_redirect_map-objs := bpf_load.o $(LIBBPF) xdp_redirect_map_user.o 93xdp_redirect_cpu-objs := bpf_load.o $(LIBBPF) xdp_redirect_cpu_user.o 94xdp_monitor-objs := bpf_load.o $(LIBBPF) xdp_monitor_user.o 95xdp_rxq_info-objs := bpf_load.o $(LIBBPF) xdp_rxq_info_user.o 96syscall_tp-objs := bpf_load.o $(LIBBPF) syscall_tp_user.o 97cpustat-objs := bpf_load.o $(LIBBPF) cpustat_user.o 98 99# Tell kbuild to always build the programs 100always := $(hostprogs-y) 101always += sockex1_kern.o 102always += sockex2_kern.o 103always += sockex3_kern.o 104always += tracex1_kern.o 105always += tracex2_kern.o 106always += tracex3_kern.o 107always += tracex4_kern.o 108always += tracex5_kern.o 109always += tracex6_kern.o 110always += tracex7_kern.o 111always += sock_flags_kern.o 112always += test_probe_write_user_kern.o 113always += trace_output_kern.o 114always += tcbpf1_kern.o 115always += tcbpf2_kern.o 116always += tc_l2_redirect_kern.o 117always += lathist_kern.o 118always += offwaketime_kern.o 119always += spintest_kern.o 120always += map_perf_test_kern.o 121always += test_overhead_tp_kern.o 122always += test_overhead_kprobe_kern.o 123always += parse_varlen.o parse_simple.o parse_ldabs.o 124always += test_cgrp2_tc_kern.o 125always += xdp1_kern.o 126always += xdp2_kern.o 127always += xdp_router_ipv4_kern.o 128always += test_current_task_under_cgroup_kern.o 129always += trace_event_kern.o 130always += sampleip_kern.o 131always += lwt_len_hist_kern.o 132always += xdp_tx_iptunnel_kern.o 133always += test_map_in_map_kern.o 134always += cookie_uid_helper_example.o 135always += tcp_synrto_kern.o 136always += tcp_rwnd_kern.o 137always += tcp_bufs_kern.o 138always += tcp_cong_kern.o 139always += tcp_iw_kern.o 140always += tcp_clamp_kern.o 141always += tcp_basertt_kern.o 142always += xdp_redirect_kern.o 143always += xdp_redirect_map_kern.o 144always += xdp_redirect_cpu_kern.o 145always += xdp_monitor_kern.o 146always += xdp_rxq_info_kern.o 147always += xdp2skb_meta_kern.o 148always += syscall_tp_kern.o 149always += cpustat_kern.o 150 151HOSTCFLAGS += -I$(objtree)/usr/include 152HOSTCFLAGS += -I$(srctree)/tools/lib/ 153HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/ 154HOSTCFLAGS += -I$(srctree)/tools/lib/ -I$(srctree)/tools/include 155HOSTCFLAGS += -I$(srctree)/tools/perf 156 157HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable 158HOSTLOADLIBES_fds_example += -lelf 159HOSTLOADLIBES_sockex1 += -lelf 160HOSTLOADLIBES_sockex2 += -lelf 161HOSTLOADLIBES_sockex3 += -lelf 162HOSTLOADLIBES_tracex1 += -lelf 163HOSTLOADLIBES_tracex2 += -lelf 164HOSTLOADLIBES_tracex3 += -lelf 165HOSTLOADLIBES_tracex4 += -lelf -lrt 166HOSTLOADLIBES_tracex5 += -lelf 167HOSTLOADLIBES_tracex6 += -lelf 168HOSTLOADLIBES_tracex7 += -lelf 169HOSTLOADLIBES_test_cgrp2_sock2 += -lelf 170HOSTLOADLIBES_load_sock_ops += -lelf 171HOSTLOADLIBES_test_probe_write_user += -lelf 172HOSTLOADLIBES_trace_output += -lelf -lrt 173HOSTLOADLIBES_lathist += -lelf 174HOSTLOADLIBES_offwaketime += -lelf 175HOSTLOADLIBES_spintest += -lelf 176HOSTLOADLIBES_map_perf_test += -lelf -lrt 177HOSTLOADLIBES_test_overhead += -lelf -lrt 178HOSTLOADLIBES_xdp1 += -lelf 179HOSTLOADLIBES_xdp2 += -lelf 180HOSTLOADLIBES_xdp_router_ipv4 += -lelf 181HOSTLOADLIBES_test_current_task_under_cgroup += -lelf 182HOSTLOADLIBES_trace_event += -lelf 183HOSTLOADLIBES_sampleip += -lelf 184HOSTLOADLIBES_tc_l2_redirect += -l elf 185HOSTLOADLIBES_lwt_len_hist += -l elf 186HOSTLOADLIBES_xdp_tx_iptunnel += -lelf 187HOSTLOADLIBES_test_map_in_map += -lelf 188HOSTLOADLIBES_xdp_redirect += -lelf 189HOSTLOADLIBES_xdp_redirect_map += -lelf 190HOSTLOADLIBES_xdp_redirect_cpu += -lelf 191HOSTLOADLIBES_xdp_monitor += -lelf 192HOSTLOADLIBES_xdp_rxq_info += -lelf 193HOSTLOADLIBES_syscall_tp += -lelf 194HOSTLOADLIBES_cpustat += -lelf 195 196# Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline: 197# make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang 198LLC ?= llc 199CLANG ?= clang 200 201# Detect that we're cross compiling and use the cross compiler 202ifdef CROSS_COMPILE 203HOSTCC = $(CROSS_COMPILE)gcc 204CLANG_ARCH_ARGS = -target $(ARCH) 205endif 206 207# Trick to allow make to be run from this directory 208all: $(LIBBPF) 209 $(MAKE) -C ../../ $(CURDIR)/ 210 211clean: 212 $(MAKE) -C ../../ M=$(CURDIR) clean 213 @rm -f *~ 214 215$(LIBBPF): FORCE 216 $(MAKE) -C $(dir $@) $(notdir $@) 217 218$(obj)/syscall_nrs.s: $(src)/syscall_nrs.c 219 $(call if_changed_dep,cc_s_c) 220 221$(obj)/syscall_nrs.h: $(obj)/syscall_nrs.s FORCE 222 $(call filechk,offsets,__SYSCALL_NRS_H__) 223 224clean-files += syscall_nrs.h 225 226FORCE: 227 228 229# Verify LLVM compiler tools are available and bpf target is supported by llc 230.PHONY: verify_cmds verify_target_bpf $(CLANG) $(LLC) 231 232verify_cmds: $(CLANG) $(LLC) 233 @for TOOL in $^ ; do \ 234 if ! (which -- "$${TOOL}" > /dev/null 2>&1); then \ 235 echo "*** ERROR: Cannot find LLVM tool $${TOOL}" ;\ 236 exit 1; \ 237 else true; fi; \ 238 done 239 240verify_target_bpf: verify_cmds 241 @if ! (${LLC} -march=bpf -mattr=help > /dev/null 2>&1); then \ 242 echo "*** ERROR: LLVM (${LLC}) does not support 'bpf' target" ;\ 243 echo " NOTICE: LLVM version >= 3.7.1 required" ;\ 244 exit 2; \ 245 else true; fi 246 247$(src)/*.c: verify_target_bpf 248 249$(obj)/tracex5_kern.o: $(obj)/syscall_nrs.h 250 251# asm/sysreg.h - inline assembly used by it is incompatible with llvm. 252# But, there is no easy way to fix it, so just exclude it since it is 253# useless for BPF samples. 254$(obj)/%.o: $(src)/%.c 255 $(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) -I$(obj) \ 256 -I$(srctree)/tools/testing/selftests/bpf/ \ 257 -D__KERNEL__ -Wno-unused-value -Wno-pointer-sign \ 258 -D__TARGET_ARCH_$(ARCH) -Wno-compare-distinct-pointer-types \ 259 -Wno-gnu-variable-sized-type-not-at-end \ 260 -Wno-address-of-packed-member -Wno-tautological-compare \ 261 -Wno-unknown-warning-option $(CLANG_ARCH_ARGS) \ 262 -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@ 263