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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/31372] _dl_tlsdesc_dynamic doesn't preserve all caller-saved registers
Date: Wed, 03 Apr 2024 17:43:04 +0000	[thread overview]
Message-ID: <bug-31372-131-4EHWLVUsSc@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-31372-131@http.sourceware.org/bugzilla/>

https://sourceware.org/bugzilla/show_bug.cgi?id=31372

--- Comment #14 from Sourceware Commits <cvs-commit at gcc dot gnu.org> ---
The release/2.39/master branch has been updated by H.J. Lu
<hjl@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=853e915fdd6ae6c5f1a7a68d2594ec8dbfef1286

commit 853e915fdd6ae6c5f1a7a68d2594ec8dbfef1286
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Feb 28 12:08:03 2024 -0800

    x86-64: Update _dl_tlsdesc_dynamic to preserve AMX registers

    _dl_tlsdesc_dynamic should also preserve AMX registers which are
    caller-saved.  Add X86_XSTATE_TILECFG_ID and X86_XSTATE_TILEDATA_ID
    to x86-64 TLSDESC_CALL_STATE_SAVE_MASK.  Compute the AMX state size
    and save it in xsave_state_full_size which is only used by
    _dl_tlsdesc_dynamic_xsave and _dl_tlsdesc_dynamic_xsavec.  This fixes
    the AMX part of BZ #31372.  Tested on AMX processor.

    AMX test is enabled only for compilers with the fix for

    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114098

    GCC 14 and GCC 11/12/13 branches have the bug fix.
    Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com>

    (cherry picked from commit 9b7091415af47082664717210ac49d51551456ab)

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  parent reply	other threads:[~2024-04-03 17:43 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-11 23:04 [Bug dynamic-link/31372] New: _dl_tlsdesc_dynamic doesn't preserve vector registers hjl.tools at gmail dot com
2024-02-11 23:05 ` [Bug dynamic-link/31372] " hjl.tools at gmail dot com
2024-02-11 23:18 ` hjl.tools at gmail dot com
2024-02-12  6:59 ` fw at deneb dot enyo.de
2024-02-12  7:11 ` sam at gentoo dot org
2024-02-12 10:46 ` fweimer at redhat dot com
2024-02-12 13:10 ` hjl.tools at gmail dot com
2024-02-14 15:04 ` [Bug dynamic-link/31372] _dl_tlsdesc_dynamic doesn't preserve all caller-saved registers hjl.tools at gmail dot com
2024-02-14 21:09 ` ismail at i10z dot com
2024-02-15 12:13 ` hjl.tools at gmail dot com
2024-02-15 20:39 ` hjl.tools at gmail dot com
2024-02-15 20:40 ` sam at gentoo dot org
2024-02-15 20:44 ` hjl.tools at gmail dot com
2024-02-15 21:07 ` sam at gentoo dot org
2024-02-15 21:14 ` hjl.tools at gmail dot com
2024-02-28 17:05 ` cvs-commit at gcc dot gnu.org
2024-02-29 12:31 ` cvs-commit at gcc dot gnu.org
2024-03-20 15:37 ` fweimer at redhat dot com
2024-04-02 13:16 ` carlos at redhat dot com
2024-04-03 17:42 ` cvs-commit at gcc dot gnu.org
2024-04-03 17:43 ` cvs-commit at gcc dot gnu.org [this message]
2024-04-11 19:06 ` adhemerval.zanella at linaro dot org

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