diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c new file mode 100644 index 000000000..5ca252823 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c @@ -0,0 +1,233 @@ +// 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, BPF_F_TEST_RND_HI32); + 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; +} + +struct scale_test_def { + const char *file; + enum bpf_prog_type attach_type; + bool fails; +}; + +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_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); +} |