linux-kernel - Re: [PATCH v2 bpf-next 2/2] selftests/bpf: add inline assembly helpers to access array elements

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Message-ID: <1ebf65a2-810b-482c-85f9-7ce02ec4970a@google.com>
Date: Tue, 9 Jan 2024 19:26:28 -0500
From: Barret Rhoden <brho@...gle.com>
To: Jiri Olsa <olsajiri@...il.com>
Cc: Andrii Nakryiko <andrii@...nel.org>, Alexei Starovoitov <ast@...nel.org>,
 Daniel Borkmann <daniel@...earbox.net>, Song Liu <song@...nel.org>,
 Yonghong Song <yonghong.song@...ux.dev>, mattbobrowski@...gle.com,
 bpf@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 bpf-next 2/2] selftests/bpf: add inline assembly
 helpers to access array elements

On 1/4/24 08:43, Jiri Olsa wrote:
> I wonder we could use the existing RUN_TESTS macro and use tags
> in programs like we do for example in progs/test_global_func1.c:
> 
>    SEC("tc")
>    __failure __msg("combined stack size of 4 calls is 544")
>    int global_func1(struct __sk_buff *skb)

This worked, thanks.

The style of test I have right now is that each test is a separate 
program, with all programs in the same skeleton.  RUN_TESTS attempted to 
load the __failure programs, with the side-effect of loading all of the 
non-failures too.

Thanks,

Barret