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[188.85.120.92]) by smtp.gmail.com with ESMTPSA id z2-20020a5d4c82000000b003021288a56dsm32554642wrs.115.2023.05.03.03.30.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 May 2023 03:30:13 -0700 (PDT) From: Juan Quintela To: Alex =?utf-8?Q?Benn=C3=A9e?= Cc: qemu-devel@nongnu.org, Laurent Vivier , Artyom Tarasenko , "Edgar E. Iglesias" , Wainer dos Santos Moschetta , Thomas Huth , Leif Lindholm , Paolo Bonzini , Gerd Hoffmann , Helge Deller , Xiaojuan Yang , Stefan Hajnoczi , Cleber Rosa , Peter Maydell , Eduardo Habkost , John Snow , Yoshinori Sato , =?utf-8?Q?C=C3=A9dric?= Le Goater , Ilya Leoshkevich , Pavel Dovgalyuk , Andrew Jeffery , qemu-s390x@nongnu.org, Richard Henderson , qemu-arm@nongnu.org, Bastian Koppelmann , Beraldo Leal , Max Filippov , =?utf-8?Q?Marc-Andr=C3=A9?= Lureau , Mark Cave-Ayland , Jiaxun Yang , Radoslaw Biernacki , Aurelien Jarno , David Hildenbrand , Markus Armbruster , Song Gao , Joel Stanley , Daniel P. =?utf-8?Q?Berrang=C3=A9?= , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Subject: Re: [PATCH 03/22] docs: document breakpoint and watchpoint support In-Reply-To: <20230503091244.1450613-4-alex.bennee@linaro.org> ("Alex =?utf-8?Q?Benn=C3=A9e=22's?= message of "Wed, 3 May 2023 10:12:25 +0100") References: <20230503091244.1450613-1-alex.bennee@linaro.org> <20230503091244.1450613-4-alex.bennee@linaro.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) Date: Wed, 03 May 2023 12:30:12 +0200 Message-ID: <878re5so5n.fsf@secure.mitica> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=170.10.133.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.171, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: quintela@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Alex Benn=C3=A9e wrote: > This varies by accelerator. Also mention the modern bear trap that is > ASLR. > > Signed-off-by: Alex Benn=C3=A9e Reviewed-by: Juan Quintela > +Relocating code > +--------------- > + > +On modern kernels confusion can be caused by code being relocated by > +features such as address space layout randomisation. To avoid > +confusion when debugging such things you either need to update gdb's > +view of where things are in memory or perhaps more trivially disable > +ASLR when booting the system. Makes sense for everything except debugging ASLR O:-)