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Re: [PATCH] aarch64: simplify the DT_AARCH64_VARIANT_PCS handling code
On 7/10/19 1:21 PM, Szabolcs Nagy wrote:
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?
Correct.
If possible it's something I would like to avoid.
I have some ideas for narrowing the window in Fedora (using a symlink
tree and flipping a prent symlink), but it's still a window.
How strong is your need to backport this?
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.
--
Cheers,
Carlos.