[PATCH] LoongArch: Set defaults to exec stack 0.

[Andreas Schwab]

On Jul 25 2022, Xi Ruoyao wrote:

> The doc of elf_backend_default_execstack says:
>
>   /* True if an object file lacking a .note.GNU-stack section
>      should be assumed to be requesting exec stack.  At least one
>      other file in the link needs to have a .note.GNU-stack section
>      for a PT_GNU_STACK segment to be created.  */
>
> So I think it only controls the default behavior of bfd library and is
> not related to the kernel?

The kernel always controls the ultimate decision.

It also means that if no input file has a GNU-stack note, no
PT_GNU_STACK segment is created for the output, in which case the kernel
default (which is PF_X for loongarch) applies.

The value of DEFAULT_STACK_PERMS in glibc must also agree with the
kernel.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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