samples/bpf/Makefile

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