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Re: [RESEND PATCH v9] Mutex: Add pthread mutex tunables
- From: Florian Weimer <fweimer at redhat dot com>
- To: Kemi Wang <kemi dot wang at intel dot com>
- Cc: Glibc alpha <libc-alpha at sourceware dot org>
- Date: Thu, 29 Nov 2018 15:41:22 +0100
- Subject: Re: [RESEND PATCH v9] Mutex: Add pthread mutex tunables
- References: <1542851105-16956-1-git-send-email-kemi.wang@intel.com>
* Kemi Wang:
> +# SXID_ERASE: (default) Don't read for AT_SECURE binaries and
> +# removed so that child processes can't read it.
I think this will not work as intended for libpthread tunables because
if libpthread is not linked in, no code in nptl/nptl-init.c ever runs.
I think we need to move the tunable to elf/dl-tunables.list, parse it
there, and communicate the result to libpthread, possibly via
_rtld_global_ro.
Thanks,
Florian