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From: "fweimer at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/15128] dynamic loader may clobber floating-point parameters on AArch64
Date: Fri, 08 Dec 2023 10:37:45 +0000 [thread overview]
Message-ID: <bug-15128-131-kycWC7Da2Z@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-15128-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=15128
--- Comment #40 from Florian Weimer <fweimer at redhat dot com> ---
(In reply to liqingqing from comment #39)
> hi all! Currently, aarch64 also support sve instruction, we found that under
> the lazy binding policy, dynamic loader may clobber z registers. This is
> because x/q/z is the same register but different length, and the file
> "sysdeps/aarch64/dl-trampoline.S" only resolve x and q registers, this will
> cause the sve functionality abnormally.
This is addressed via STO_AARCH64_VARIANT_PCS/DT_AARCH64_VARIANT_PCS, so it's
not an issue for a psABI compliant toolchain.
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prev parent reply other threads:[~2023-12-08 10:37 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-09 17:03 [Bug dynamic-link/15128] New: " mikpe at it dot uu.se
2013-02-09 17:04 ` [Bug dynamic-link/15128] " mikpe at it dot uu.se
2013-02-11 5:00 ` bugdal at aerifal dot cx
2013-02-11 7:21 ` Ondřej Bílka
2013-02-11 7:21 ` neleai at seznam dot cz
2013-02-11 9:09 ` mikpe at it dot uu.se
2013-02-11 13:36 ` bugdal at aerifal dot cx
2013-02-11 15:13 ` mikpe at it dot uu.se
2013-02-11 21:38 ` bugdal at aerifal dot cx
2013-02-13 9:32 ` mikpe at it dot uu.se
2013-02-20 18:12 ` carlos at redhat dot com
2013-02-24 18:11 ` amonakov at gmail dot com
2013-02-24 18:13 ` amonakov at gmail dot com
2013-02-25 8:06 ` aj at suse dot de
2013-05-21 12:59 ` marcus.shawcroft at linaro dot org
2013-10-02 22:15 ` neleai at seznam dot cz
2013-12-18 12:08 ` cvs-commit at gcc dot gnu.org
2013-12-19 14:04 ` cvs-commit at gcc dot gnu.org
2013-12-19 14:10 ` marcus.shawcroft at linaro dot org
2014-06-13 18:52 ` fweimer at redhat dot com
2015-07-31 12:33 ` cvs-commit at gcc dot gnu.org
2015-08-01 15:55 ` cvs-commit at gcc dot gnu.org
2015-08-01 22:23 ` cvs-commit at gcc dot gnu.org
2015-08-01 22:25 ` cvs-commit at gcc dot gnu.org
2015-08-02 3:55 ` cvs-commit at gcc dot gnu.org
2015-08-02 12:33 ` cvs-commit at gcc dot gnu.org
2015-08-02 13:57 ` cvs-commit at gcc dot gnu.org
2015-08-02 17:41 ` cvs-commit at gcc dot gnu.org
2015-08-02 17:43 ` cvs-commit at gcc dot gnu.org
2015-08-03 4:47 ` cvs-commit at gcc dot gnu.org
2015-08-03 4:50 ` cvs-commit at gcc dot gnu.org
2015-08-03 17:21 ` cvs-commit at gcc dot gnu.org
2015-08-03 19:32 ` cvs-commit at gcc dot gnu.org
2015-08-03 21:25 ` cvs-commit at gcc dot gnu.org
2015-08-03 21:36 ` cvs-commit at gcc dot gnu.org
2015-08-05 14:34 ` cvs-commit at gcc dot gnu.org
2015-08-05 14:35 ` cvs-commit at gcc dot gnu.org
2015-08-07 22:45 ` jsweval at arxan dot com
2015-08-19 12:19 ` cvs-commit at gcc dot gnu.org
2015-08-24 13:19 ` cvs-commit at gcc dot gnu.org
2015-08-25 11:31 ` cvs-commit at gcc dot gnu.org
2015-08-25 11:53 ` cvs-commit at gcc dot gnu.org
2023-12-08 9:28 ` liqingqing3 at huawei dot com
2023-12-08 10:37 ` fweimer at redhat dot com [this message]
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