From: Peter Korsgaard <peter@korsgaard.com>
To: Thomas Petazzoni via buildroot <buildroot@buildroot.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [Buildroot] [git commit] package/gcc: fix powerpc toolchain issues with 64-bit capable cores
Date: Wed, 13 Sep 2023 21:27:45 +0200 [thread overview]
Message-ID: <87a5tp27ri.fsf@48ers.dk> (raw)
In-Reply-To: <20230826195311.4A3568642E@busybox.osuosl.org> (Thomas Petazzoni via buildroot's message of "Sat, 26 Aug 2023 21:51:26 +0200")
>>>>> "Thomas" == Thomas Petazzoni via buildroot <buildroot@buildroot.org> writes:
> commit: https://git.buildroot.net/buildroot/commit/?id=5acaac7122945c7588cf2328d928e1d4fb6488dd
> branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
> Some of the powerpc CPUs supported by Buildroot are dual mode CPUs,
> which means 32 Bit and 64 Bit mode is supported, and for any 64-bit
> capable CPU, GCC defaults to using 64-bit, even if the toolchain tuple
> starts with powerpc-* (and not powerpc64-*). This causes issues when
> building toolchains with uClibc or musl.
> In order to resolve this, we force GCC to understand we want to
> generate 32-bit code, using the --with-cpu-32 option.
> See here the gcc documentation for details about --with-cpu-32:
> https://gcc.gnu.org/install/configure.html
> See here for a discussion on the musl mailinglist about the error:
> https://inbox.vuxu.org/musl/20220722162900.GB1320090@port70.net/
> Fixes:
> - http://autobuild.buildroot.net/results/450/4509d8cfb7d99beb4ef023f170490def1d90f92c
> - http://autobuild.buildroot.net/results/654/6545a464d49f9f3c6740a5208cfad7f09ec4cb8b
> - http://autobuild.buildroot.net/results/cf8/cf866d5320b069eb1e8b4f05e8e58de0ad2ec7b5
> Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Committed to 2023.02.x and 2023.05.x, thanks.
--
Bye, Peter Korsgaard
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prev parent reply other threads:[~2023-09-13 19:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-26 19:51 [Buildroot] [git commit] package/gcc: fix powerpc toolchain issues with 64-bit capable cores Thomas Petazzoni via buildroot
2023-09-13 19:27 ` Peter Korsgaard [this message]
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