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awl=host:12273 Hi Eduard, I might be mistaken, but as it is skip_dynamic_pfx is dropping the index from the string that is passed to push_msg. This is the case since it is matching the '=' in its passed macros; #define TEST_TAG_EXPECT_MSG_PFX "comment:test_expect_msg=" dropping the index and the other equal in the call to strchr(msg, '='). I know the patch is rather bigger then perhaps minimally necessary but I did not want to change the semantics of current implementation, except the array ordering. Did not really thought about string ordering it later, however, if I think about it, I would personally prefer to order the array at the push. Ordering later during a processing stage IMHO would obfuscate the fact that the array is ordered by its index. If we change skip_dynamic_pfx to also return the "=" then we could parse the string and insert it ordered in push_msg, not really needing to wait for a later stage. Anyway, up to you. If you think it is worth it, I can do that. Cheers, Cupertino On 18-03-2026 11:07 PM, Eduard Zingerman wrote: > On Thu, 2026-03-05 at 13:00 +0000, 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 >> Cc: David Faust  >> Cc: Jose Marchesi  >> Cc: Elena Zannoni  >> --- > > Looks like this patch fell through the cracks. > > It looks a bit intrusive, given the amount of places index has to be > passed through. An alternative would be to modify parse_test_spec() > such that it collects decl tag ids into the array first and then sorts > the array. It will have to use strverscmp() for comparator, though. > This way all the changes would be localized to a single function > collecting the array. > > Up to you if that is worth the hassle. > > Reviewed-by: Eduard Zingerman > > [...]