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Wed, 30 Oct 2024 08:58:13 +0000 Message-ID: Date: Tue, 29 Oct 2024 12:55:50 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] Fix size of register buffer To: Hannes Domani , Tom Tromey Cc: "gdb-patches@sourceware.org" References: <20241028175239.314-1-ssbssa.ref@yahoo.de> <20241028175239.314-1-ssbssa@yahoo.de> <87msio6mhv.fsf@tromey.com> <2036338476.11686761.1730145768936@mail.yahoo.com> Content-Language: en-US From: Tom de Vries In-Reply-To: <2036338476.11686761.1730145768936@mail.yahoo.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FREEMAIL_ENVRCPT(0.00)[yahoo.de]; MIME_TRACE(0.00)[0:+]; TO_DN_EQ_ADDR_SOME(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_TO(0.00)[yahoo.de,tromey.com]; MID_RHS_MATCH_FROM(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; RCVD_TLS_ALL(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FUZZY_BLOCKED(0.00)[rspamd.com]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:mid] X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org On 10/28/24 21:02, Hannes Domani wrote: > Am Montag, 28. Oktober 2024 um 20:44:32 MEZ hat Tom Tromey Folgendes geschrieben: > >>>>>>> "Hannes" == Hannes Domani writes: >> >> Hannes> It's because the first 4 double arguments are passed via XMM registers, >> Hannes> and they need a buffer of 16 bytes, even if we only use 8 bytes of them. > > Pushed, thanks. Hi Hannes, I had a question about what we could do to detect this problem without address sanitizer, and ended up writing a patch ( https://sourceware.org/pipermail/gdb-patches/2024-October/212723.html ) which unfortunately I cannot test. It would be great if you or anybody else with a windows setup could test that patch. Thanks, - Tom