linux-kernel - Re: [PATCH 4/5] tools headers: Synchronize prctl.h ABI header

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Message-ID: <20250517144904.3iCywPrZ@linutronix.de>
Date: Sat, 17 May 2025 16:49:04 +0200
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: André Almeida <andrealmeid@...lia.com>
Cc: linux-kernel@...r.kernel.org, Darren Hart <dvhart@...radead.org>,
	Davidlohr Bueso <dave@...olabs.net>, Ingo Molnar <mingo@...hat.com>,
	Juri Lelli <juri.lelli@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Valentin Schneider <vschneid@...hat.com>,
	Waiman Long <longman@...hat.com>
Subject: Re: [PATCH 4/5] tools headers: Synchronize prctl.h ABI header

On 2025-05-16 17:06:48 [-0300], André Almeida wrote:
> > > @@ -254,18 +254,18 @@ int main(int argc, char *argv[])
> > >           ret = futex_hash_slots_set(0, 0);
> > >           ksft_test_result(ret == 0, "Global hash request\n");
> > >       } else {
> > > -        ret = futex_hash_slots_set(4, 1);
> > > +        ret = futex_hash_slots_set(4, FH_FLAG_IMMUTABLE);
> > 
> > This breaks the compilation for me.
> > 
> > So `#include <linux/prctl.h>` is not working for me, it's not using the
> > local copy at tools/include/uapi/linux/prctl.h
> 
> Oh, nevermind, I found the issue:

Yeah, I am not sure what I did. I made here a copy, the copied header is
only used for perf. Anyway, I added the define as I did for the other
members and did the rename.

Sebastian