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From: "Andre McCurdy" <armccurdy@gmail.com>
To: Adrian Bunk <bunk@stusta.de>
Cc: Stefan Ghinea <stefan.ghinea@windriver.com>,
	 OE Core mailing list <openembedded-core@lists.openembedded.org>
Subject: Re: [OE-core] [PATCH] pulseaudio: fix for ARM thumb + frame pointers compilation error
Date: Thu, 26 Mar 2020 12:53:08 -0700	[thread overview]
Message-ID: <CAJ86T=WJ4+8Ly59gxj6maeLQC5NAcZiM-G+uKqhTTi3u9C_FtQ@mail.gmail.com> (raw)
In-Reply-To: <20200326191628.GC5401@localhost>

On Thu, Mar 26, 2020 at 12:16 PM Adrian Bunk <bunk@stusta.de> wrote:
>
> On Thu, Mar 26, 2020 at 05:26:29PM +0200, Stefan Ghinea wrote:
> >...
> > When compiling for Thumb or Thumb2, frame pointers _must_ be disabled
> > since the Thumb frame pointer in r7
> >...
>
> How are you reproducing the problem in pulseaudio?
>
> This sounds like a workaround for a bug in musl that was fixed 2 years ago.

The problem can show up anywhere that inline asm is trying to use r7.
In this case it looks like:

  https://github.com/pulseaudio/pulseaudio/blob/master/src/pulsecore/remap_neon.c#L50

Better fix there might be to use registers { r4,r5,r6,r12 } instead of
{ r4,r5,r6,r7 } ?

> cu
> Adrian
> 

  reply	other threads:[~2020-03-26 19:53 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-26 15:26 [PATCH] pulseaudio: fix for ARM thumb + frame pointers compilation error Stefan Ghinea
2020-03-26 17:23 ` [OE-core] " Andre McCurdy
2020-03-26 19:16 ` Adrian Bunk
2020-03-26 19:53   ` Andre McCurdy [this message]
2020-03-26 20:26     ` Adrian Bunk
2020-03-26 21:23       ` Andre McCurdy
2020-03-27 18:56         ` Adrian Bunk
2020-07-17 10:09         ` Tanu Kaskinen
2020-07-17 19:19           ` Andre McCurdy
2020-07-18  4:09             ` Tanu Kaskinen
2020-03-30 16:29 ` Tanu Kaskinen
     [not found] ` <160121D94406B75D.27565@lists.openembedded.org>
2020-03-30 16:52   ` Tanu Kaskinen

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