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Re: [PATCH] aarch64: simplify the DT_AARCH64_VARIANT_PCS handling code
- From: Szabolcs Nagy <Szabolcs dot Nagy at arm dot com>
- To: GNU C Library <libc-alpha at sourceware dot org>
- Cc: nd <nd at arm dot com>
- Date: Wed, 10 Jul 2019 17:21:54 +0000
- Subject: Re: [PATCH] aarch64: simplify the DT_AARCH64_VARIANT_PCS handling code
- References: <2801f179-5700-651c-760d-24ebb27dab1b@arm.com>
On 09/07/2019 13:55, Szabolcs Nagy wrote:
> Remove unnecessary variant_pcs field: the dynamic tag can be checked
> directly.
>
> I'll commit this tomorrow unless there are comments.
> Then backport it with the variant pcs support to release branches
> https://sourceware.org/ml/libc-alpha/2019-05/msg00523.html
i was about to back port this but i wonder if
glibc has policy that a release branch cannot
change libc internal abi between dynamic linker
and lib*.so to allow reliable updates?
this patch changes the size of map->l_info array.
>
> 2019-07-09 Szabolcs Nagy <szabolcs.nagy@arm.com>
>
> * sysdeps/aarch64/dl-machine.h (elf_machine_runtime_setup): Remove the
> DT_AARCH64_VARIANT_PCS check.
> (elf_machine_lazy_rel): Use l_info[DT_AARCH64 (VARIANT_PCS)].
> * sysdeps/aarch64/linkmap.h (struct link_map_machine): Remove
> variant_pcs.
>