From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15362 invoked by alias); 11 Feb 2013 15:13:29 -0000 Received: (qmail 14900 invoked by uid 48); 11 Feb 2013 15:12:56 -0000 From: "mikpe at it dot uu.se" To: glibc-bugs@sourceware.org Subject: [Bug dynamic-link/15128] dynamic loader may clobber floating-point parameters on AArch64 Date: Mon, 11 Feb 2013 15:13:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: glibc X-Bugzilla-Component: dynamic-link X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mikpe at it dot uu.se X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact glibc-bugs-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: glibc-bugs-owner@sourceware.org X-SW-Source: 2013-02/txt/msg00062.txt.bz2 http://sourceware.org/bugzilla/show_bug.cgi?id=15128 --- Comment #5 from Mikael Pettersson 2013-02-11 15:12:52 UTC --- I see code for preserving vector registers in ports/sysdeps/aarch64/dl-tlsdesc.S, but no such code in ports/sysdeps/aarch64/dl-trampoline.S (_dl_runtime_resolve), which is where the execution transitions from the PLT to the dynamic loader's C code. A few archs preserve FP/SIMD registers in their _dl_runtime_resolve (SH, Alpha, HPPA, IA64), but most don't. Extending aarch64's _dl_runtime_resolve to preserve FP/SIMD argument registers should also fix this bug. -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.