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