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Re: regression for microblaze architecture

From: Michael Eager <eager at eagerm dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Sat, 27 May 2017 11:35:25 -0700
Subject: Re: regression for microblaze architecture
Authentication-results: sourceware.org; auth=none
References: <20170527085122.GB24800@waldemar-brodkorb.de> <5929A49C.1080803@eagerm.com>

From https://gcc.gnu.org/ml/gcc/2017-05/msg00221.html:

On 05/27/2017 09:09 AM, Michael Eager wrote:

On 05/27/2017 01:51 AM, Waldemar Brodkorb wrote:

Hi,

Buildroot and OpenADK have samples to create a Linux system to be
bootup in Qemu system emulation for microblaze architecture.

With gcc 6.3 and 7.1 the samples are not working anymore,
because the Linux system userland does not boot.
Qemu 2.9.0:
Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
(with glibc, musl and uClibc-ng toolchains)

I bisected gcc source code and found the bad commit:
6dcad60c0ef48af584395a40feeb256fb82986a8

When reverting the change, gcc 6.3 and 7.1 produces working
Linux rootfs again.

What can we do about it?


I will revert this commit in GCC.


Reverted on GCC mainline: Committed revision 248540.

--
Michael Eager	 eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077

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