linux-kernel - Re: [PATCH v3 2/2] rust: add tracepoint support

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Message-ID: <CAH5fLgiCT37jiow3NRqupY_a=-V+40QRoGpR8aiu-PmuwbgE9w@mail.gmail.com>
Date: Fri, 28 Jun 2024 17:00:43 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Boqun Feng <boqun.feng@...il.com>, Masami Hiramatsu <mhiramat@...nel.org>, 
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, Peter Zijlstra <peterz@...radead.org>, 
	Josh Poimboeuf <jpoimboe@...nel.org>, Jason Baron <jbaron@...mai.com>, 
	Ard Biesheuvel <ardb@...nel.org>, Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
	Wedson Almeida Filho <wedsonaf@...il.com>, Gary Guo <gary@...yguo.net>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...sung.com>, 
	linux-trace-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/2] rust: add tracepoint support

On Wed, Jun 26, 2024 at 8:43 PM Steven Rostedt <rostedt@...dmis.org> wrote:
>
> On Wed, 26 Jun 2024 10:48:23 +0200
> Alice Ryhl <aliceryhl@...gle.com> wrote:
>
> > >
> > > Because your hooks/rust_binder.h and events/rust_binder.h use the same
> > > TRACE_SYSTEM name? Could you try something like:
> > >
> > >         #define TRACE_SYSTEM rust_binder_hook
> > >
> > > in your hooks/rust_binder.h?
> >
> > I was able to get it to work by moving the includes into two different
> > .c files. I don't think changing TRACE_SYSTEM works because it must
> > match the filename.
>
> Try to use:
>
>  #define TRACE_SYSTEM_VAR rust_binder_hook_other_name
>
> in one. Then that is used as the variable for that file.

Thanks. I also made a change to restore the value of
DEFINE_RUST_DO_TRACE after define_trace.h

Alice