57d84949e8145d94b7181130b60dabcde427ac21
[muen/linux.git] / samples / bpf / Makefile
1 # kbuild trick to avoid linker error. Can be omitted if a module is built.
2 obj- := dummy.o
3
4 # List of programs to build
5 hostprogs-y := test_lru_dist
6 hostprogs-y += sock_example
7 hostprogs-y += fds_example
8 hostprogs-y += sockex1
9 hostprogs-y += sockex2
10 hostprogs-y += sockex3
11 hostprogs-y += tracex1
12 hostprogs-y += tracex2
13 hostprogs-y += tracex3
14 hostprogs-y += tracex4
15 hostprogs-y += tracex5
16 hostprogs-y += tracex6
17 hostprogs-y += test_probe_write_user
18 hostprogs-y += trace_output
19 hostprogs-y += lathist
20 hostprogs-y += offwaketime
21 hostprogs-y += spintest
22 hostprogs-y += map_perf_test
23 hostprogs-y += test_overhead
24 hostprogs-y += test_cgrp2_array_pin
25 hostprogs-y += test_cgrp2_attach
26 hostprogs-y += test_cgrp2_sock
27 hostprogs-y += test_cgrp2_sock2
28 hostprogs-y += xdp1
29 hostprogs-y += xdp2
30 hostprogs-y += test_current_task_under_cgroup
31 hostprogs-y += trace_event
32 hostprogs-y += sampleip
33 hostprogs-y += tc_l2_redirect
34 hostprogs-y += lwt_len_hist
35
36 test_lru_dist-objs := test_lru_dist.o libbpf.o
37 sock_example-objs := sock_example.o libbpf.o
38 fds_example-objs := bpf_load.o libbpf.o fds_example.o
39 sockex1-objs := bpf_load.o libbpf.o sockex1_user.o
40 sockex2-objs := bpf_load.o libbpf.o sockex2_user.o
41 sockex3-objs := bpf_load.o libbpf.o sockex3_user.o
42 tracex1-objs := bpf_load.o libbpf.o tracex1_user.o
43 tracex2-objs := bpf_load.o libbpf.o tracex2_user.o
44 tracex3-objs := bpf_load.o libbpf.o tracex3_user.o
45 tracex4-objs := bpf_load.o libbpf.o tracex4_user.o
46 tracex5-objs := bpf_load.o libbpf.o tracex5_user.o
47 tracex6-objs := bpf_load.o libbpf.o tracex6_user.o
48 test_probe_write_user-objs := bpf_load.o libbpf.o test_probe_write_user_user.o
49 trace_output-objs := bpf_load.o libbpf.o trace_output_user.o
50 lathist-objs := bpf_load.o libbpf.o lathist_user.o
51 offwaketime-objs := bpf_load.o libbpf.o offwaketime_user.o
52 spintest-objs := bpf_load.o libbpf.o spintest_user.o
53 map_perf_test-objs := bpf_load.o libbpf.o map_perf_test_user.o
54 test_overhead-objs := bpf_load.o libbpf.o test_overhead_user.o
55 test_cgrp2_array_pin-objs := libbpf.o test_cgrp2_array_pin.o
56 test_cgrp2_attach-objs := libbpf.o test_cgrp2_attach.o
57 test_cgrp2_sock-objs := libbpf.o test_cgrp2_sock.o
58 test_cgrp2_sock2-objs := bpf_load.o libbpf.o test_cgrp2_sock2.o
59 xdp1-objs := bpf_load.o libbpf.o xdp1_user.o
60 # reuse xdp1 source intentionally
61 xdp2-objs := bpf_load.o libbpf.o xdp1_user.o
62 test_current_task_under_cgroup-objs := bpf_load.o libbpf.o cgroup_helpers.o \
63                                        test_current_task_under_cgroup_user.o
64 trace_event-objs := bpf_load.o libbpf.o trace_event_user.o
65 sampleip-objs := bpf_load.o libbpf.o sampleip_user.o
66 tc_l2_redirect-objs := bpf_load.o libbpf.o tc_l2_redirect_user.o
67 lwt_len_hist-objs := bpf_load.o libbpf.o lwt_len_hist_user.o
68
69 # Tell kbuild to always build the programs
70 always := $(hostprogs-y)
71 always += sockex1_kern.o
72 always += sockex2_kern.o
73 always += sockex3_kern.o
74 always += tracex1_kern.o
75 always += tracex2_kern.o
76 always += tracex3_kern.o
77 always += tracex4_kern.o
78 always += tracex5_kern.o
79 always += tracex6_kern.o
80 always += sock_flags_kern.o
81 always += test_probe_write_user_kern.o
82 always += trace_output_kern.o
83 always += tcbpf1_kern.o
84 always += tcbpf2_kern.o
85 always += tc_l2_redirect_kern.o
86 always += lathist_kern.o
87 always += offwaketime_kern.o
88 always += spintest_kern.o
89 always += map_perf_test_kern.o
90 always += test_overhead_tp_kern.o
91 always += test_overhead_kprobe_kern.o
92 always += parse_varlen.o parse_simple.o parse_ldabs.o
93 always += test_cgrp2_tc_kern.o
94 always += xdp1_kern.o
95 always += xdp2_kern.o
96 always += test_current_task_under_cgroup_kern.o
97 always += trace_event_kern.o
98 always += sampleip_kern.o
99 always += lwt_len_hist_kern.o
100
101 HOSTCFLAGS += -I$(objtree)/usr/include
102 HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/
103
104 HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable
105 HOSTLOADLIBES_fds_example += -lelf
106 HOSTLOADLIBES_sockex1 += -lelf
107 HOSTLOADLIBES_sockex2 += -lelf
108 HOSTLOADLIBES_sockex3 += -lelf
109 HOSTLOADLIBES_tracex1 += -lelf
110 HOSTLOADLIBES_tracex2 += -lelf
111 HOSTLOADLIBES_tracex3 += -lelf
112 HOSTLOADLIBES_tracex4 += -lelf -lrt
113 HOSTLOADLIBES_tracex5 += -lelf
114 HOSTLOADLIBES_tracex6 += -lelf
115 HOSTLOADLIBES_test_cgrp2_sock2 += -lelf
116 HOSTLOADLIBES_test_probe_write_user += -lelf
117 HOSTLOADLIBES_trace_output += -lelf -lrt
118 HOSTLOADLIBES_lathist += -lelf
119 HOSTLOADLIBES_offwaketime += -lelf
120 HOSTLOADLIBES_spintest += -lelf
121 HOSTLOADLIBES_map_perf_test += -lelf -lrt
122 HOSTLOADLIBES_test_overhead += -lelf -lrt
123 HOSTLOADLIBES_xdp1 += -lelf
124 HOSTLOADLIBES_xdp2 += -lelf
125 HOSTLOADLIBES_test_current_task_under_cgroup += -lelf
126 HOSTLOADLIBES_trace_event += -lelf
127 HOSTLOADLIBES_sampleip += -lelf
128 HOSTLOADLIBES_tc_l2_redirect += -l elf
129 HOSTLOADLIBES_lwt_len_hist += -l elf
130
131 # Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline:
132 #  make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang
133 LLC ?= llc
134 CLANG ?= clang
135
136 # Trick to allow make to be run from this directory
137 all:
138         $(MAKE) -C ../../ $$PWD/
139
140 clean:
141         $(MAKE) -C ../../ M=$$PWD clean
142         @rm -f *~
143
144 # Verify LLVM compiler tools are available and bpf target is supported by llc
145 .PHONY: verify_cmds verify_target_bpf $(CLANG) $(LLC)
146
147 verify_cmds: $(CLANG) $(LLC)
148         @for TOOL in $^ ; do \
149                 if ! (which -- "$${TOOL}" > /dev/null 2>&1); then \
150                         echo "*** ERROR: Cannot find LLVM tool $${TOOL}" ;\
151                         exit 1; \
152                 else true; fi; \
153         done
154
155 verify_target_bpf: verify_cmds
156         @if ! (${LLC} -march=bpf -mattr=help > /dev/null 2>&1); then \
157                 echo "*** ERROR: LLVM (${LLC}) does not support 'bpf' target" ;\
158                 echo "   NOTICE: LLVM version >= 3.7.1 required" ;\
159                 exit 2; \
160         else true; fi
161
162 $(src)/*.c: verify_target_bpf
163
164 # asm/sysreg.h - inline assembly used by it is incompatible with llvm.
165 # But, there is no easy way to fix it, so just exclude it since it is
166 # useless for BPF samples.
167 $(obj)/%.o: $(src)/%.c
168         $(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
169                 -D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
170                 -Wno-compare-distinct-pointer-types \
171                 -Wno-gnu-variable-sized-type-not-at-end \
172                 -Wno-address-of-packed-member -Wno-tautological-compare \
173                 -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@