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[83.52.55.163]) by smtp.gmail.com with ESMTPSA id n15sm7575253wmq.7.2021.08.23.08.21.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 23 Aug 2021 08:21:08 -0700 (PDT) Subject: Re: [PATCH 0/3] gdbstub: add support for switchable endianness To: Changbin Du , =?UTF-8?Q?Alex_Benn=c3=a9e?= References: <20210823142004.17935-1-changbin.du@gmail.com> From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= Message-ID: <7523c6ad-52cd-0b20-b09d-01bd537edbb3@redhat.com> Date: Mon, 23 Aug 2021 17:21:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210823142004.17935-1-changbin.du@gmail.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -55 X-Spam_score: -5.6 X-Spam_bar: ----- X-Spam_report: (-5.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.743, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-2.023, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , qemu-riscv@nongnu.org, Bin Meng , qemu-devel@nongnu.org, qemu-arm@nongnu.org, Alistair Francis , Paolo Bonzini , Palmer Dabbelt Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 8/23/21 4:20 PM, Changbin Du wrote: > To resolve the issue to debug switchable targets, this serias introduces > basic infrastructure for gdbstub and enable support for ARM and RISC-V > targets. > > For example, now there is no problem to debug an big-enadian aarch64 target > on x86 host. > > $ qemu-system-aarch64 -gdb tcp::1234,endianness=big ... I don't understand why you need all that. Maybe you aren't using gdb-multiarch? You can install it or start it via QEMU Debian Docker image: $ docker run -it --rm -v /tmp:/tmp -u $UID --network=host \ registry.gitlab.com/qemu-project/qemu/qemu/debian10 \ gdb-multiarch -q \ --ex 'set architecture aarch64' \ --ex 'set endian big' The target architecture is assumed to be aarch64 The target is assumed to be big endian (gdb) target remote 172.17.0.1:1234 (gdb)