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