Purpose of RISCV_GCC_RED_ZONE_SIZE?

[Hesham Almatary]

Hi Sebastian,

On Wed, Jun 27, 2018 at 7:07 AM, Sebastian Huber
<sebastian.huber at embedded-brains.de> wrote:
> Hello,
>
> the RISC-V port has a RISCV_GCC_RED_ZONE_SIZE define. What is the purpose?
>
Not coming into my mind why it's there. If you believe it shouldn't be
there (and tests pass), feel free to delete it.

> The current ABI says that there is no stack red zone:
>
> https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md
>
> "Procedures must not rely upon the persistence of stack-allocated data whose
> addresses lie below the stack pointer."
>
> --
> Sebastian Huber, embedded brains GmbH
>
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>
> Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
>



-- 
Hesham