Wilco Dijkstra <wilco.dijks...@arm.com> writes:
> Increase the priority of the init_have_lse_atomics constructor so it runs
> before other constructors. This improves chances that rr works when LSE
> atomics are supported.
Can you add a comment above the function explaining why we chose 90
in particular? I see 100 was originally suggested in the PR.
Thanks,
Richard
> Regress and bootstrap pass, OK for commit?
>
> 2022-05-24 Wilco Dijkstra <wdijk...@arm.com>
>
> libgcc/
> PR libgcc/105708
> * config/aarch64/lse-init.c: Increase constructor priority.
>
> ---
> diff --git a/libgcc/config/aarch64/lse-init.c
> b/libgcc/config/aarch64/lse-init.c
> index
> fc875b7fe80e947623e570eac130e7a14b516551..988882d91dfeed77f299aa610d72091499271490
> 100644
> --- a/libgcc/config/aarch64/lse-init.c
> +++ b/libgcc/config/aarch64/lse-init.c
> @@ -38,7 +38,7 @@ _Bool __aarch64_have_lse_atomics
>
> unsigned long int __getauxval (unsigned long int);
>
> -static void __attribute__((constructor))
> +static void __attribute__((constructor (90)))
> init_have_lse_atomics (void)
> {
> unsigned long hwcap = __getauxval (AT_HWCAP);
