Re: [PATCH] selftests/bpf: Enforce definition order for __msg macros in BPF tests

[Yonghong Song <yonghong.song@linux.dev>]

On 3/5/26 5:00 AM, Cupertino Miranda wrote:
> Ensure that __msg macros, and similars, used for BPF test validation are
> processed in the order they are defined in the source code.
>
> Neither GCC nor the C standard defines the order in which function
> attributes are consumed. While Clang tends to preserve definition order,
> GCC may process them out of sequence. This inconsistency causes BPF
> tests with multiple __msg entries to fail when compiled with GCC.
>
> This patch fixes the test runner to explicitly sort or process these
> attributes to guarantee predictable matching behavior across different
> compilers.
>
> Signed-off-by: Cupertino Miranda <cupertino.miranda@oracle.com>
> Cc: David Faust  <david.faust@oracle.com>
> Cc: Jose Marchesi  <jose.marchesi@oracle.com>
> Cc: Elena Zannoni  <elena.zannoni@oracle.com>

I simulated with a few examples, e.g., message sequence numbers
like [4 3 5 2 0 1] and the patch looks correct. So

Acked-by: Yonghong Song <yonghong.song@linux.dev>