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Date: Sat, 11 Feb 2023 19:27:39 +0000
From: Bastian Bittorf <bb@....de>
To: Rich Felker <dalias@...c.org>
Cc: musl@...ts.openwall.com, mailinglist <openwrt-devel@...ts.openwrt.org>
Subject: Re: busybox problem on powerpc PPC/32bit (hardware
TP-Link-WDR-4900-v1)
On Sat, Feb 11, 2023 at 09:01:03AM -0500, Rich Felker wrote:
> It looks like the powerpc spe longjmp code is clobbering the value
> argument. Try the attached patch.
> diff --git a/src/setjmp/powerpc/longjmp.S b/src/setjmp/powerpc/longjmp.S
> index 611389fe..465e4cd7 100644
> --- a/src/setjmp/powerpc/longjmp.S
> +++ b/src/setjmp/powerpc/longjmp.S
> @@ -42,10 +42,10 @@ longjmp:
> bl 1f
> .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 /* ... */
Thanks a lot, this looked promising!, but
sorry, it does NOT solve the issue:
Using musl-cross-make and this file in
patches/musl-1.2.0/ppc-spe-longjmp-fix.diff
i compiled an output/bin/powerpc-linux-muslsf*
crosscompiler with:
make TARGET=powerpc-linux-muslsf install
and used it for further steps...
maybe the patch did not applied?
let me sleep about it...
Thanks a lot, Bastian
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