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| author | Alexei Starovoitov | 2019-04-02 06:27:49 +0200 |
|---|---|---|
| committer | Daniel Borkmann | 2019-04-04 01:27:38 +0200 |
| commit | 8aa2d4b4b92cd534d53353b0c2fb079572b97fdf (patch) | |
| tree | 27109b9d8f1bcea48513a56186c60ed1930f34f0 /tools/testing/selftests/bpf/verifier | |
| parent | selftests/bpf: add few verifier scale tests (diff) | |
| download | kernel-qcow2-linux-8aa2d4b4b92cd534d53353b0c2fb079572b97fdf.tar.gz kernel-qcow2-linux-8aa2d4b4b92cd534d53353b0c2fb079572b97fdf.tar.xz kernel-qcow2-linux-8aa2d4b4b92cd534d53353b0c2fb079572b97fdf.zip | |
selftests/bpf: synthetic tests to push verifier limits
Add a test to generate 1m ld_imm64 insns to stress the verifier.
Bump the size of fill_ld_abs_vlan_push_pop test from 4k to 29k
and jump_around_ld_abs from 4k to 5.5k.
Larger sizes are not possible due to 16-bit offset encoding
in jump instructions.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/testing/selftests/bpf/verifier')
| -rw-r--r-- | tools/testing/selftests/bpf/verifier/ld_dw.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/ld_dw.c b/tools/testing/selftests/bpf/verifier/ld_dw.c index d2c75b889598..0f18e62f0099 100644 --- a/tools/testing/selftests/bpf/verifier/ld_dw.c +++ b/tools/testing/selftests/bpf/verifier/ld_dw.c @@ -34,3 +34,12 @@ .result = ACCEPT, .retval = 5, }, +{ + "ld_dw: xor semi-random 64 bit imms, test 5", + .insns = { }, + .data = { }, + .fill_helper = bpf_fill_rand_ld_dw, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + .result = ACCEPT, + .retval = 1000000 - 6, +}, |