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// 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)
return vfprintf(stderr, format, args);
if (!strstr(format, "verifier log"))
return 0;
return vfprintf(stderr, "%s", args);
}
static int check_load(const char *file, enum bpf_prog_type type)
{
struct bpf_prog_load_attr attr;
struct bpf_object *obj = NULL;
int err, prog_fd;
memset(&attr, 0, sizeof(struct bpf_prog_load_attr));
attr.file = file;
attr.prog_type = type;
attr.log_level = 4;
attr.prog_flags = BPF_F_TEST_RND_HI32;
err = bpf_prog_load_xattr(&attr, &obj, &prog_fd);
bpf_object__close(obj);
if (err)
error_cnt++;
return err;
}
void test_bpf_verif_scale(void)
{
const char *sched_cls[] = {
"./test_verif_scale1.o", "./test_verif_scale2.o", "./test_verif_scale3.o",
};
const char *raw_tp[] = {
/* full unroll by llvm */
"./pyperf50.o", "./pyperf100.o", "./pyperf180.o",
/* 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.
*/
"./pyperf600.o",
/* 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.
*/
"./pyperf600_nounroll.o",
"./loop1.o", "./loop2.o",
/* partial unroll. 19k insn in a loop.
* Total program size 20.8k insn.
* ~350k processed_insns
*/
"./strobemeta.o",
/* no unroll, tiny loops */
"./strobemeta_nounroll1.o",
"./strobemeta_nounroll2.o",
};
const char *cg_sysctl[] = {
"./test_sysctl_loop1.o", "./test_sysctl_loop2.o",
};
int err, i;
if (verifier_stats)
libbpf_set_print(libbpf_debug_print);
err = check_load("./loop3.o", BPF_PROG_TYPE_RAW_TRACEPOINT);
printf("test_scale:loop3:%s\n", err ? (error_cnt--, "OK") : "FAIL");
for (i = 0; i < ARRAY_SIZE(sched_cls); i++) {
err = check_load(sched_cls[i], BPF_PROG_TYPE_SCHED_CLS);
printf("test_scale:%s:%s\n", sched_cls[i], err ? "FAIL" : "OK");
}
for (i = 0; i < ARRAY_SIZE(raw_tp); i++) {
err = check_load(raw_tp[i], BPF_PROG_TYPE_RAW_TRACEPOINT);
printf("test_scale:%s:%s\n", raw_tp[i], err ? "FAIL" : "OK");
}
for (i = 0; i < ARRAY_SIZE(cg_sysctl); i++) {
err = check_load(cg_sysctl[i], BPF_PROG_TYPE_CGROUP_SYSCTL);
printf("test_scale:%s:%s\n", cg_sysctl[i], err ? "FAIL" : "OK");
}
err = check_load("./test_xdp_loop.o", BPF_PROG_TYPE_XDP);
printf("test_scale:test_xdp_loop:%s\n", err ? "FAIL" : "OK");
err = check_load("./test_seg6_loop.o", BPF_PROG_TYPE_LWT_SEG6LOCAL);
printf("test_scale:test_seg6_loop:%s\n", err ? "FAIL" : "OK");
}
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