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

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?