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{ "id": 2195348, "url": "http://patchwork.ozlabs.org/api/covers/2195348/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260210201344.1403613-1-pierrick.bouvier@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260210201344.1403613-1-pierrick.bouvier@linaro.org>", "list_archive_url": null, "date": "2026-02-10T20:13:40", "name": "[0/4] contrib/plugins/uftrace: add riscv64 support", "submitter": { "id": 85798, "url": "http://patchwork.ozlabs.org/api/people/85798/?format=api", "name": "Pierrick Bouvier", "email": "pierrick.bouvier@linaro.org" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260210201344.1403613-1-pierrick.bouvier@linaro.org/mbox/", "series": [ { "id": 491734, "url": "http://patchwork.ozlabs.org/api/series/491734/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=491734", "date": "2026-02-10T20:13:44", "name": "contrib/plugins/uftrace: add riscv64 support", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/491734/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2195348/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=TwShTteJ;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=\"utf-8\"", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::629;\n envelope-from=pierrick.bouvier@linaro.org; helo=mail-pl1-x629.google.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 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": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "This series adds support for riscv64 system tracing.\nCompared to aarch64 and x86_64, stack layout has different offsets for accessing\nframe pointers chain.\n\nTo build and trace a riscv64 system (requires only podman and qemu-user-static):\n$ git clone https://github.com/pbo-linaro/qemu-linux-stack -b riscv64\n$ git checkout qemu-linux-stack\n$ ./build.sh\n$ env INIT=true ./trace.sh /path/to/qemu-system-riscv64\n$ uftrace replay\n\nResult perfetto trace can be downloaded:\nhttps://drive.google.com/file/d/18AVzg5ftwJZyJMMbm_KcB4FMVSas6jVz\nAnd load it on:\nhttps://ui.perfetto.dev/\n\nPierrick Bouvier (4):\n contrib/plugins/uftrace: fix infinite stack unwind detection\n contrib/plugins/uftrace: add ops for walking frame pointers chain\n docs/about/emulation/uftrace: add info about automatic tracing\n contrib/plugins/uftrace: add riscv64 support\n\n docs/about/emulation.rst | 23 +++++--\n contrib/plugins/uftrace.c | 128 +++++++++++++++++++++++++++++++++++---\n 2 files changed, 138 insertions(+), 13 deletions(-)" }