[PATCH] libgloss/aarch64: Add support for Armv8-R AArch64

[Kyrylo Tkachov]

> -----Original Message-----
> From: Newlib <newlib-bounces@sourceware.org> On Behalf Of Alex Coplan
> Sent: 18 September 2020 15:43
> To: newlib@sourceware.org
> Cc: Richard Earnshaw <Richard.Earnshaw@arm.com>
> Subject: [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64
> 
> Hello,
> 
> This patch adds support for Armv8-R AArch64. We update the AArch64 CPU
> boot code to work on Armv8-R if __ARM_ARCH_PROFILE is set to 'R'.
> Armv8-R AArch64 has no EL3, so we don't set vbar_el3, and adjust the
> code to set up the MPU for Armv8-R.
> 
> We also add a specs file for use with Armv8-R AArch64 models.
> 
> Testing:
>  * Ran AArch64 GCC testsuite using --with-arch=armv8-r together with the
>    new specs file and boot code in an Armv8-R AArch64 model.
>  * Ran newlib testsuite, no regressions.
> 
> OK for master?
> 

FWIW this looks good to me but I'm not a maintainer.
Thanks,
Kyrill

> Thanks,
> Alex
> 
> ---
> 
> 2020-09-18  Alex Coplan  <alex.coplan@arm.com>
> 
> libgloss/ChangeLog:
> 
> 	* aarch64/Makefile.in: Install new specs file.
> 	* aarch64/cpu-init/Makefile.in: Also build boot code for Armv8-R.
> 	* aarch64/cpu-init/rdimon-aem-el3.S: Add support for Armv8-R.
> 	* aarch64/elf-aem-v8-r.specs: New.