1 # kbuild trick to avoid linker error. Can be omitted if a module is built.
4 # List of programs to build
5 hostprogs-y
:= test_lru_dist
6 hostprogs-y
+= sock_example
7 hostprogs-y
+= fds_example
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_attach2
27 hostprogs-y
+= test_cgrp2_sock
28 hostprogs-y
+= test_cgrp2_sock2
31 hostprogs-y
+= test_current_task_under_cgroup
32 hostprogs-y
+= trace_event
33 hostprogs-y
+= sampleip
34 hostprogs-y
+= tc_l2_redirect
35 hostprogs-y
+= lwt_len_hist
36 hostprogs-y
+= xdp_tx_iptunnel
37 hostprogs-y
+= test_map_in_map
38 hostprogs-y
+= per_socket_stats_example
41 LIBBPF
:= ..
/..
/tools
/lib
/bpf
/bpf.o
43 test_lru_dist-objs
:= test_lru_dist.o
$(LIBBPF
)
44 sock_example-objs
:= sock_example.o
$(LIBBPF
)
45 fds_example-objs
:= bpf_load.o
$(LIBBPF
) fds_example.o
46 sockex1-objs
:= bpf_load.o
$(LIBBPF
) sockex1_user.o
47 sockex2-objs
:= bpf_load.o
$(LIBBPF
) sockex2_user.o
48 sockex3-objs
:= bpf_load.o
$(LIBBPF
) sockex3_user.o
49 tracex1-objs
:= bpf_load.o
$(LIBBPF
) tracex1_user.o
50 tracex2-objs
:= bpf_load.o
$(LIBBPF
) tracex2_user.o
51 tracex3-objs
:= bpf_load.o
$(LIBBPF
) tracex3_user.o
52 tracex4-objs
:= bpf_load.o
$(LIBBPF
) tracex4_user.o
53 tracex5-objs
:= bpf_load.o
$(LIBBPF
) tracex5_user.o
54 tracex6-objs
:= bpf_load.o
$(LIBBPF
) tracex6_user.o
55 test_probe_write_user-objs
:= bpf_load.o
$(LIBBPF
) test_probe_write_user_user.o
56 trace_output-objs
:= bpf_load.o
$(LIBBPF
) trace_output_user.o
57 lathist-objs
:= bpf_load.o
$(LIBBPF
) lathist_user.o
58 offwaketime-objs
:= bpf_load.o
$(LIBBPF
) offwaketime_user.o
59 spintest-objs
:= bpf_load.o
$(LIBBPF
) spintest_user.o
60 map_perf_test-objs
:= bpf_load.o
$(LIBBPF
) map_perf_test_user.o
61 test_overhead-objs
:= bpf_load.o
$(LIBBPF
) test_overhead_user.o
62 test_cgrp2_array_pin-objs
:= $(LIBBPF
) test_cgrp2_array_pin.o
63 test_cgrp2_attach-objs
:= $(LIBBPF
) test_cgrp2_attach.o
64 test_cgrp2_attach2-objs
:= $(LIBBPF
) test_cgrp2_attach2.o cgroup_helpers.o
65 test_cgrp2_sock-objs
:= $(LIBBPF
) test_cgrp2_sock.o
66 test_cgrp2_sock2-objs
:= bpf_load.o
$(LIBBPF
) test_cgrp2_sock2.o
67 xdp1-objs
:= bpf_load.o
$(LIBBPF
) xdp1_user.o
68 # reuse xdp1 source intentionally
69 xdp2-objs
:= bpf_load.o
$(LIBBPF
) xdp1_user.o
70 test_current_task_under_cgroup-objs
:= bpf_load.o
$(LIBBPF
) cgroup_helpers.o \
71 test_current_task_under_cgroup_user.o
72 trace_event-objs
:= bpf_load.o
$(LIBBPF
) trace_event_user.o
73 sampleip-objs
:= bpf_load.o
$(LIBBPF
) sampleip_user.o
74 tc_l2_redirect-objs
:= bpf_load.o
$(LIBBPF
) tc_l2_redirect_user.o
75 lwt_len_hist-objs
:= bpf_load.o
$(LIBBPF
) lwt_len_hist_user.o
76 xdp_tx_iptunnel-objs
:= bpf_load.o
$(LIBBPF
) xdp_tx_iptunnel_user.o
77 test_map_in_map-objs
:= bpf_load.o
$(LIBBPF
) test_map_in_map_user.o
78 per_socket_stats_example-objs
:= $(LIBBPF
) cookie_uid_helper_example.o
80 # Tell kbuild to always build the programs
81 always
:= $(hostprogs-y
)
82 always
+= sockex1_kern.o
83 always
+= sockex2_kern.o
84 always
+= sockex3_kern.o
85 always
+= tracex1_kern.o
86 always
+= tracex2_kern.o
87 always
+= tracex3_kern.o
88 always
+= tracex4_kern.o
89 always
+= tracex5_kern.o
90 always
+= tracex6_kern.o
91 always
+= sock_flags_kern.o
92 always
+= test_probe_write_user_kern.o
93 always
+= trace_output_kern.o
94 always
+= tcbpf1_kern.o
95 always
+= tcbpf2_kern.o
96 always
+= tc_l2_redirect_kern.o
97 always
+= lathist_kern.o
98 always
+= offwaketime_kern.o
99 always
+= spintest_kern.o
100 always
+= map_perf_test_kern.o
101 always
+= test_overhead_tp_kern.o
102 always
+= test_overhead_kprobe_kern.o
103 always
+= parse_varlen.o parse_simple.o parse_ldabs.o
104 always
+= test_cgrp2_tc_kern.o
105 always
+= xdp1_kern.o
106 always
+= xdp2_kern.o
107 always
+= test_current_task_under_cgroup_kern.o
108 always
+= trace_event_kern.o
109 always
+= sampleip_kern.o
110 always
+= lwt_len_hist_kern.o
111 always
+= xdp_tx_iptunnel_kern.o
112 always
+= test_map_in_map_kern.o
113 always
+= cookie_uid_helper_example.o
115 HOSTCFLAGS
+= -I
$(objtree
)/usr
/include
116 HOSTCFLAGS
+= -I
$(srctree
)/tools
/lib
/
117 HOSTCFLAGS
+= -I
$(srctree
)/tools
/testing
/selftests
/bpf
/
118 HOSTCFLAGS
+= -I
$(srctree
)/tools
/lib
/ -I
$(srctree
)/tools
/include
119 HOSTCFLAGS
+= -I
$(srctree
)/tools
/perf
121 HOSTCFLAGS_bpf_load.o
+= -I
$(objtree
)/usr
/include -Wno-unused-variable
122 HOSTLOADLIBES_fds_example
+= -lelf
123 HOSTLOADLIBES_sockex1
+= -lelf
124 HOSTLOADLIBES_sockex2
+= -lelf
125 HOSTLOADLIBES_sockex3
+= -lelf
126 HOSTLOADLIBES_tracex1
+= -lelf
127 HOSTLOADLIBES_tracex2
+= -lelf
128 HOSTLOADLIBES_tracex3
+= -lelf
129 HOSTLOADLIBES_tracex4
+= -lelf
-lrt
130 HOSTLOADLIBES_tracex5
+= -lelf
131 HOSTLOADLIBES_tracex6
+= -lelf
132 HOSTLOADLIBES_test_cgrp2_sock2
+= -lelf
133 HOSTLOADLIBES_test_probe_write_user
+= -lelf
134 HOSTLOADLIBES_trace_output
+= -lelf
-lrt
135 HOSTLOADLIBES_lathist
+= -lelf
136 HOSTLOADLIBES_offwaketime
+= -lelf
137 HOSTLOADLIBES_spintest
+= -lelf
138 HOSTLOADLIBES_map_perf_test
+= -lelf
-lrt
139 HOSTLOADLIBES_test_overhead
+= -lelf
-lrt
140 HOSTLOADLIBES_xdp1
+= -lelf
141 HOSTLOADLIBES_xdp2
+= -lelf
142 HOSTLOADLIBES_test_current_task_under_cgroup
+= -lelf
143 HOSTLOADLIBES_trace_event
+= -lelf
144 HOSTLOADLIBES_sampleip
+= -lelf
145 HOSTLOADLIBES_tc_l2_redirect
+= -l elf
146 HOSTLOADLIBES_lwt_len_hist
+= -l elf
147 HOSTLOADLIBES_xdp_tx_iptunnel
+= -lelf
148 HOSTLOADLIBES_test_map_in_map
+= -lelf
150 # Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline:
151 # make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang
155 # Trick to allow make to be run from this directory
157 $(MAKE
) -C ..
/..
/ $(CURDIR
)/
160 $(MAKE
) -C ..
/..
/ M
=$(CURDIR
) clean
163 # Verify LLVM compiler tools are available and bpf target is supported by llc
164 .PHONY
: verify_cmds verify_target_bpf
$(CLANG
) $(LLC
)
166 verify_cmds
: $(CLANG
) $(LLC
)
167 @for TOOL in
$^
; do \
168 if
! (which
-- "$${TOOL}" > /dev
/null
2>&1); then \
169 echo
"*** ERROR: Cannot find LLVM tool $${TOOL}" ;\
174 verify_target_bpf
: verify_cmds
175 @if
! (${LLC} -march
=bpf
-mattr
=help
> /dev
/null
2>&1); then \
176 echo
"*** ERROR: LLVM (${LLC}) does not support 'bpf' target" ;\
177 echo
" NOTICE: LLVM version >= 3.7.1 required" ;\
181 $(src
)/*.c
: verify_target_bpf
183 # asm/sysreg.h - inline assembly used by it is incompatible with llvm.
184 # But, there is no easy way to fix it, so just exclude it since it is
185 # useless for BPF samples.
186 $(obj
)/%.o
: $(src
)/%.c
187 $(CLANG
) $(NOSTDINC_FLAGS
) $(LINUXINCLUDE
) $(EXTRA_CFLAGS
) \
188 -D__KERNEL__
-D__ASM_SYSREG_H
-Wno-unused-value
-Wno-pointer-sign \
189 -Wno-compare-distinct-pointer-types \
190 -Wno-gnu-variable-sized-type-not-at-end \
191 -Wno-address-of-packed-member
-Wno-tautological-compare \
192 -Wno-unknown-warning-option \
193 -O2
-emit-llvm
-c
$< -o
-|
$(LLC
) -march
=bpf
-filetype
=obj
-o
$@