From: Zvi Vered <veredz72@gmail.com>
To: Chris Packham <judge.packham@gmail.com>
Cc: crossgcc maillist <crossgcc@sourceware.org>
Subject: Re: 1.25.0: aarch64-unknown-linux-gnu with neon support
Date: Tue, 14 Jun 2022 06:20:53 +0300 [thread overview]
Message-ID: <CABRndgx9T_ntXXxVrudycDJi=7j9vpWgDXsTKGfYXBm=+vXAAw@mail.gmail.com> (raw)
In-Reply-To: <CAFOYHZBLtxg1=tAW=aT-f3fNpaHpXQpFUTQCWL7gionb1pT41Q@mail.gmail.com>
Hi Chris,
Thank you very much for your reply.
According to:
https://developer.arm.com/Processors/Cortex-A53
The architecture of Cortex-A53 is ARMv8.
Is has "Neon advanced SIMD"
I wonder how to configure crosstool 1.25.0 to fit exactly this CPU for
linux, 64bits.
Best regards,
Zvika
On Mon, Jun 13, 2022 at 12:24 PM Chris Packham <judge.packham@gmail.com>
wrote:
> On Mon, Jun 13, 2022 at 2:29 PM Zvi Vered via crossgcc
> <crossgcc@sourceware.org> wrote:
> >
> > Hello,
> >
> > I ran:
> > ct-ng aarch64-unknown-linux-gnu
> > but with this configuration, under "Target options" I can't set FPU.
> >
> > How can I create gcc for armv8 (coretex A53), 64bit with the option:
> > -mfpu=neon
>
> The aarch64 configs don't use the FPU option (I think because the FPU
> is required by the ARMv8 spec). Instead you probably want to use the
> -mcpu/-mtune options as per
>
> https://gcc.gnu.org/onlinedocs/gcc-12.1.0/gcc/AArch64-Options.html#AArch64-Options
>
> >
> > Thank you,
> > Zvika
> > --
> > For unsubscribe information see http://sourceware.org/lists.html#faq
>
next prev parent reply other threads:[~2022-06-14 3:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-13 9:28 Zvi Vered
2022-06-13 9:24 ` Chris Packham
2022-06-14 3:20 ` Zvi Vered [this message]
2022-06-14 4:37 ` Chris Packham
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