RE: Does Linaro aarch64 gcc toolchain support Cortex-A53/A57 performance tunning.

Hi Will,

Thanks a lot for your reply. I tried -mtune=cortex-a53, no error is reported, it works.

One further question, do you have a plan to support Cortex-A57 tuning?

Thanks.

Best Regards. ------------------------------------------------------------------ Zenon Xiu （修志龙)

-----Original Message----- From: Will Newton [mailto:will.newton@linaro.org] Sent: 09 October 2013 16:51 To: Zenon Xiu Cc: linaro-toolchain@lists.linaro.org Subject: Re: Does Linaro aarch64 gcc toolchain support Cortex-A53/A57 performance tunning. Importance: High

On 9 October 2013 09:37, Zenon Xiu Zenon.Xiu@arm.com wrote:

Hi team,

In the GCC.pdf of gcc-linaro-aarch64-none-elf-4.8-2013.08, it says that -mcpu supports cortex-a53, but when I tried to build a simple hello bare metal application with -mcpu=cortex-a53 option, gcc reports,

Error: unknown cpu `cortex-a53' Error: unrecognized option -mcpu=cortex-a53

I believe this is an assembler error, as the assembler only supports these CPU types on binutils trunk. Have you tried passing -mtune=cortex-a53 instead?

-- Will Newton Toolchain Working Group, Linaro

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