This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Re: PATCH: Check GLIBC_IFUNC to enable/disable ifunc features
- From: Siddhesh Poyarekar <siddhesh at sourceware dot org>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: Carlos O'Donell <carlos at redhat dot com>, GNU C Library <libc-alpha at sourceware dot org>
- Date: Thu, 30 Jun 2016 09:14:01 +0530
- Subject: Re: PATCH: Check GLIBC_IFUNC to enable/disable ifunc features
- Authentication-results: sourceware.org; auth=none
- References: <CAMe9rOq1+_rMbs1mt3=Md=Wx=7ZxUbD+BhOx-qrO5TBRBrRLww at mail dot gmail dot com> <20160630030947 dot GD3824 at devel dot intra dot reserved-bit dot com> <CAMe9rOrd+DEP1POnXaUaOrCaGqMmrftJbR_6ydFCXQeWueWmag at mail dot gmail dot com>
On Wed, Jun 29, 2016 at 08:22:15PM -0700, H.J. Lu wrote:
> GLIBC_IFUNC must be processed after init_cpu_features is called and before
> any relocation is performed. Otherwise, IFUNC won't work correctly. Can your
> tunable scheme support it?
Yes, one of the desired use cases for tunables has been to control
IFUNC behaviour.
Siddhesh