mailing list of musl libc
 help / color / mirror / code / Atom feed
From: Bastian Bittorf <bb@npl.de>
To: Rich Felker <dalias@libc.org>
Cc: musl@lists.openwall.com, mailinglist <openwrt-devel@lists.openwrt.org>
Subject: Re: [musl] busybox problem on powerpc PPC/32bit (hardware TP-Link-WDR-4900-v1)
Date: Sat, 11 Feb 2023 19:27:39 +0000	[thread overview]
Message-ID: <20230211192739.zfizfkfe5xiwikjb@email> (raw)
In-Reply-To: <20230211140103.GE4163@brightrain.aerifal.cx>

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

  reply	other threads:[~2023-02-11 19:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-11 12:51 Bastian Bittorf
2023-02-11 14:01 ` Rich Felker
2023-02-11 19:27   ` Bastian Bittorf [this message]
2023-02-11 19:30     ` Rich Felker
2023-02-12  8:17       ` Bastian Bittorf
2023-02-12 22:34         ` Rich Felker
2023-02-11 14:47 ` Bastian Bittorf

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20230211192739.zfizfkfe5xiwikjb@email \
    --to=bb@npl.de \
    --cc=dalias@libc.org \
    --cc=musl@lists.openwall.com \
    --cc=openwrt-devel@lists.openwrt.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
Code repositories for project(s) associated with this public inbox

	https://git.vuxu.org/mirror/musl/

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).