1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2019 Facebook
#include <test_progs.h>
static int libbpf_debug_print(enum libbpf_print_level level,
const char *format, va_list args)
{
if (level != LIBBPF_DEBUG) {
vprintf(format, args);
return 0;
}
if (!strstr(format, "verifier log"))
return 0;
vprintf("%s", args);
return 0;
}
extern int extra_prog_load_log_flags;
static int check_load(const char *file, enum bpf_prog_type type)
{
struct bpf_object *obj = NULL;
struct bpf_program *prog;
int err;
obj = bpf_object__open_file(file, NULL);
err = libbpf_get_error(obj);
if (err)
return err;
prog = bpf_object__next_program(obj, NULL);
if (!prog) {
err = -ENOENT;
goto err_out;
}
bpf_program__set_type(prog, type);
bpf_program__set_flags(prog, testing_prog_flags());
bpf_program__set_log_level(prog, 4 | extra_prog_load_log_flags);
err = bpf_object__load(obj);
err_out:
bpf_object__close(obj);
return err;
}
static void scale_test(const char *file,
enum bpf_prog_type attach_type,
bool should_fail)
{
libbpf_print_fn_t old_print_fn = NULL;
int err;
if (env.verifier_stats) {
test__force_log();
old_print_fn = libbpf_set_print(libbpf_debug_print);
}
err = check_load(file, attach_type);
if (should_fail)
ASSERT_ERR(err, "expect_error");
else
ASSERT_OK(err, "expect_success");
if (env.verifier_stats)
libbpf_set_print(old_print_fn);
}
void test_verif_scale1()
{
scale_test("test_verif_scale1.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
}
void test_verif_scale2()
{
scale_test("test_verif_scale2.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
}
void test_verif_scale3()
{
scale_test("test_verif_scale3.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
}
void test_verif_scale_pyperf_global()
{
scale_test("pyperf_global.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_pyperf_subprogs()
{
scale_test("pyperf_subprogs.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_pyperf50()
{
/* full unroll by llvm */
scale_test("pyperf50.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_pyperf100()
{
/* full unroll by llvm */
scale_test("pyperf100.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_pyperf180()
{
/* full unroll by llvm */
scale_test("pyperf180.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_pyperf600()
{
/* partial unroll. llvm will unroll loop ~150 times.
* C loop count -> 600.
* Asm loop count -> 4.
* 16k insns in loop body.
* Total of 5 such loops. Total program size ~82k insns.
*/
scale_test("pyperf600.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_pyperf600_bpf_loop(void)
{
/* use the bpf_loop helper*/
scale_test("pyperf600_bpf_loop.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_pyperf600_nounroll()
{
/* no unroll at all.
* C loop count -> 600.
* ASM loop count -> 600.
* ~110 insns in loop body.
* Total of 5 such loops. Total program size ~1500 insns.
*/
scale_test("pyperf600_nounroll.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_pyperf600_iter()
{
/* open-coded BPF iterator version */
scale_test("pyperf600_iter.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_loop1()
{
scale_test("loop1.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_loop2()
{
scale_test("loop2.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_loop3_fail()
{
scale_test("loop3.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, true /* fails */);
}
void test_verif_scale_loop4()
{
scale_test("loop4.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
}
void test_verif_scale_loop5()
{
scale_test("loop5.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
}
void test_verif_scale_loop6()
{
scale_test("loop6.bpf.o", BPF_PROG_TYPE_KPROBE, false);
}
void test_verif_scale_strobemeta()
{
/* partial unroll. 19k insn in a loop.
* Total program size 20.8k insn.
* ~350k processed_insns
*/
scale_test("strobemeta.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_strobemeta_bpf_loop(void)
{
/* use the bpf_loop helper*/
scale_test("strobemeta_bpf_loop.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_strobemeta_nounroll1()
{
/* no unroll, tiny loops */
scale_test("strobemeta_nounroll1.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_strobemeta_nounroll2()
{
/* no unroll, tiny loops */
scale_test("strobemeta_nounroll2.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_strobemeta_subprogs()
{
/* non-inlined subprogs */
scale_test("strobemeta_subprogs.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
}
void test_verif_scale_sysctl_loop1()
{
scale_test("test_sysctl_loop1.bpf.o", BPF_PROG_TYPE_CGROUP_SYSCTL, false);
}
void test_verif_scale_sysctl_loop2()
{
scale_test("test_sysctl_loop2.bpf.o", BPF_PROG_TYPE_CGROUP_SYSCTL, false);
}
void test_verif_scale_xdp_loop()
{
scale_test("test_xdp_loop.bpf.o", BPF_PROG_TYPE_XDP, false);
}
void test_verif_scale_seg6_loop()
{
scale_test("test_seg6_loop.bpf.o", BPF_PROG_TYPE_LWT_SEG6LOCAL, false);
}
void test_verif_twfw()
{
scale_test("twfw.bpf.o", BPF_PROG_TYPE_CGROUP_SKB, false);
}
|
