From: Kumar Kartikeya Dwivedi <memxor@gmail.com>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: bpf@vger.kernel.org, Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Martin KaFai Lau <martin.lau@kernel.org>,
Dave Marchevsky <davemarchevsky@meta.com>,
Delyan Kratunov <delyank@meta.com>
Subject: Re: [PATCH bpf-next v5 25/25] selftests/bpf: Add BTF sanity tests
Date: Wed, 9 Nov 2022 22:03:51 +0530 [thread overview]
Message-ID: <20221109163351.tjharqbhffnmebqq@apollo> (raw)
In-Reply-To: <CAEf4BzZCki9Dmqms4E643t6RctZxo3BowQvPY1u5Ht1zdiOxHg@mail.gmail.com>
On Wed, Nov 09, 2022 at 05:48:00AM IST, Andrii Nakryiko wrote:
> On Mon, Nov 7, 2022 at 3:11 PM Kumar Kartikeya Dwivedi <memxor@gmail.com> wrote:
> >
> > Preparing the metadata for bpf_list_head involves a complicated parsing
> > step and type resolution for the contained value. Ensure that corner
> > cases are tested against and invalid specifications in source are duly
> > rejected. Also include tests for incorrect ownership relationships in
> > the BTF.
> >
> > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > ---
> > .../selftests/bpf/prog_tests/linked_list.c | 271 ++++++++++++++++++
> > 1 file changed, 271 insertions(+)
> >
>
> Have you considered using BTW write API to construct BTFs?
> btf__new_empty() + btf__add_xxx()?
>
I didn't know about these. Let me give them a shot!
prev parent reply other threads:[~2022-11-09 16:34 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-07 23:09 [PATCH bpf-next v5 00/25] Local kptrs, BPF linked lists Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 01/25] bpf: Remove BPF_MAP_OFF_ARR_MAX Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 02/25] bpf: Fix copy_map_value, zero_map_value Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 03/25] bpf: Support bpf_list_head in map values Kumar Kartikeya Dwivedi
2022-11-08 23:01 ` Andrii Nakryiko
2022-11-08 23:39 ` Kumar Kartikeya Dwivedi
2022-11-09 0:22 ` Andrii Nakryiko
2022-11-09 1:03 ` Alexei Starovoitov
2022-11-09 16:41 ` Kumar Kartikeya Dwivedi
2022-11-09 23:14 ` Andrii Nakryiko
2022-11-09 23:11 ` Andrii Nakryiko
2022-11-09 23:35 ` Alexei Starovoitov
2022-11-07 23:09 ` [PATCH bpf-next v5 04/25] bpf: Rename RET_PTR_TO_ALLOC_MEM Kumar Kartikeya Dwivedi
2022-11-08 23:08 ` Andrii Nakryiko
2022-11-07 23:09 ` [PATCH bpf-next v5 05/25] bpf: Rename MEM_ALLOC to MEM_RINGBUF Kumar Kartikeya Dwivedi
2022-11-08 23:14 ` Andrii Nakryiko
2022-11-08 23:49 ` Kumar Kartikeya Dwivedi
2022-11-09 0:26 ` Andrii Nakryiko
2022-11-09 1:05 ` Alexei Starovoitov
2022-11-09 22:58 ` Andrii Nakryiko
2022-11-07 23:09 ` [PATCH bpf-next v5 06/25] bpf: Introduce local kptrs Kumar Kartikeya Dwivedi
2022-11-08 23:29 ` Andrii Nakryiko
2022-11-09 0:00 ` Kumar Kartikeya Dwivedi
2022-11-09 0:36 ` Andrii Nakryiko
2022-11-09 1:32 ` Alexei Starovoitov
2022-11-09 17:00 ` Kumar Kartikeya Dwivedi
2022-11-09 23:23 ` Andrii Nakryiko
2022-11-09 23:21 ` Andrii Nakryiko
2022-11-07 23:09 ` [PATCH bpf-next v5 07/25] bpf: Recognize bpf_{spin_lock,list_head,list_node} in " Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 08/25] bpf: Verify ownership relationships for user BTF types Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 09/25] bpf: Allow locking bpf_spin_lock in local kptr Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 10/25] bpf: Allow locking bpf_spin_lock global variables Kumar Kartikeya Dwivedi
2022-11-08 23:37 ` Andrii Nakryiko
2022-11-09 0:03 ` Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 11/25] bpf: Allow locking bpf_spin_lock in inner map values Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 12/25] bpf: Rewrite kfunc argument handling Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 13/25] bpf: Drop kfunc bits from btf_check_func_arg_match Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 14/25] bpf: Support constant scalar arguments for kfuncs Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 15/25] bpf: Teach verifier about non-size constant arguments Kumar Kartikeya Dwivedi
2022-11-09 0:05 ` Andrii Nakryiko
2022-11-09 16:29 ` Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 16/25] bpf: Introduce bpf_obj_new Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 17/25] bpf: Introduce bpf_obj_drop Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 18/25] bpf: Permit NULL checking pointer with non-zero fixed offset Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 19/25] bpf: Introduce single ownership BPF linked list API Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 20/25] bpf: Add 'release on unlock' logic for bpf_list_push_{front,back} Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 21/25] selftests/bpf: Add __contains macro to bpf_experimental.h Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 22/25] selftests/bpf: Update spinlock selftest Kumar Kartikeya Dwivedi
2022-11-09 0:13 ` Andrii Nakryiko
2022-11-09 16:32 ` Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 23/25] selftests/bpf: Add failure test cases for spin lock pairing Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 24/25] selftests/bpf: Add BPF linked list API tests Kumar Kartikeya Dwivedi
2022-11-07 23:09 ` [PATCH bpf-next v5 25/25] selftests/bpf: Add BTF sanity tests Kumar Kartikeya Dwivedi
2022-11-09 0:18 ` Andrii Nakryiko
2022-11-09 16:33 ` Kumar Kartikeya Dwivedi [this message]
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