[lttng-dev] Limit on the number of arguments in TP_ARGS

Shahar Hochma via lttng-dev <[email protected]> Wed, 7 Aug 2024 17:03:12 +0300

Newsgroups	org.lttng.lists.lttng-dev
Message-ID	<CADoB5d61PHip7Rp2SyzooXg_EUC6x__OYXrndRmOy8Pb-2OBjw@mail.gmail.com>

Hi,
I've been using LTTNG traces and I was trying to create events with more
than 10 arguments. But, I'm having an issue where this seems to fail in
compilation with a cryptic error when I define more than 10 arguments in
TP_ARGS.

I assume the issue is that there are some macros that are only defined up
to 10 arguments. I didn't see any documentation of this limit or any
mention of this anywhere, and I wanted to know if there is maybe a way to
get around this.

Of course I can combine arguments to struts or define 2 events instead of
one. But I wanted to know if there is a native way to resolve this.

Thanks.

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