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Date: Sun, 12 Feb 2023 08:17:04 +0000
From: Bastian Bittorf <bb@npl.de>
To: Rich Felker <dalias@libc.org>
Cc: musl@lists.openwall.com, mailinglist <openwrt-devel@lists.openwrt.org>
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Subject: Re: [musl] busybox problem on powerpc PPC/32bit (hardware
 TP-Link-WDR-4900-v1)

On Sat, Feb 11, 2023 at 02:30:44PM -0500, Rich Felker wrote:
> > >  	.hidden __hwcap
> > >  	.long __hwcap-.
> > > -1:	mflr 4
> > > -	lwz 5, 0(4)
> > > -	lwzx 4, 4, 5
> > > -	andis. 4, 4, 0x80
> > > +1:	mflr 6
> > > +	lwz 5, 0(6)
> > > +	lwzx 6, 6, 5
> > > +	andis. 6, 6, 0x80
> > >  	beq 1f
> > >  	.long 0x11c35b01 /* evldd 14,88(3) */
> > >  	.long 0x11e36301 /* ... */

It works!

~ # test A -gt 5 && echo OK
ash: A: out of range
~ # echo $?
2
~ # uname -a
Linux (none) 6.1.11 #1 Sun Feb 12 09:06:57 CET 2023 ppc GNU/Linux

In the end i directly changed the sourcecode,  
using the patchdir did not work an my side, i'am sure
a made a mistake here.

Anyway - i'am happy!
Is there some more, where i can help/test?

I uploaded kernel + busybox/initrd for qemu here:
http://intercity-vpn.de/mpc85xx/musl-1.2.3+ppcpatch/

bye, Bastian