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Tue, 12 May 2026 10:59:32 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 12 May 2026 10:59:32 +0000 (GMT) From: Jan Polensky To: hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, ojeda@kernel.org, peterz@infradead.org, jpoimboe@kernel.org, jbaron@akamai.com, aliceryhl@google.com Cc: borntraeger@linux.ibm.com, svens@linux.ibm.com, boqun@kernel.org, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, tmgross@umich.edu, dakr@kernel.org, rostedt@goodmis.org, ardb@kernel.org, linux-s390@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/4] s390: enable Rust support and add required arch glue Date: Tue, 12 May 2026 12:59:16 +0200 Message-ID: <20260512105920.2426293-1-japo@linux.ibm.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Authority-Analysis: v=2.4 cv=KbvidwYD c=1 sm=1 tr=0 ts=6a030819 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=ynQKOEzQyDeFR-uBsnYA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTEyMDEwOSBTYWx0ZWRfX/qPZRpjmmYUk KuO2sZLFr1mqkxwBL2JZaLMq8UY32EBrxeQYjif/EbOXVYW9K/gn2nZqnqvMRvuleAfjW0sQPX1 7YR0X6S6BxIirhJkZQ7p0tyTVV8/M0x+5gyaR0C9YhR9CLu68wdPZNPcxfsMSDKluJ7a6V//OLc lmXT6PWC7BOJiaP/jHtzOGmt3j8fLC8uw0NZiQxm4dqubyM/LDkl9EjOIrUUrkj7znGe7fcCTyC rLzdPESPJsCCs2IVJCjY+uhAo6m/M9+7ZYxmeflkpKgfdE/B98TllgKhQD6UHBlljShlf8kNRkS 98thTqqFKz4Gyebrs2ZIMMLiH147keXXl6KY7SoYu/R0/VdakRSyzYdewtSXse/7buwIKABr4D1 8rZ6bk6j72TA6G9h4iGQcEvHzcHbR00aGhoaN12dE7PBVBTL/TZ1UvjmsD4cDD4PXdxz6+j6x4p 951+ldvmdPYRwg/KbNQ== X-Proofpoint-GUID: qjLQhv3-yRCwkDk2h5BUEEXtm_L7zWbz X-Proofpoint-ORIG-GUID: AUJve3NagHTtBeM4bmA8gPFUp2ZD2y0k X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-11_05,2026-05-08_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 impostorscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 spamscore=0 suspectscore=0 clxscore=1011 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605050000 definitions=main-2605120109 Rust support on s390 requires a small set of architecture-specific pieces before the generic Rust kernel infrastructure can be used. The series wires up s390 as a Rust-capable 64-bit architecture, adds the missing assembly interfaces needed by Rust for WARN/BUG reporting and for static branches, and adjusts bindgen parameters to avoid repr layout conflicts caused by packed and aligned s390 structures. s390 currently requires a nightly rustc due to -Zpacked-stack, and the minimum tool version gating is adjusted accordingly. Jan Polensky (4): s390/bug: Provide ARCH_WARN_ASM for Rust WARN/BUG support s390/jump_label: Implement ARCH_STATIC_BRANCH_JUMP_ASM and ARCH_STATIC_BRANCH_ASM macros rust/bindgen_parameters: Mark s390 types as opaque to prevent repr conflicts s390: enable Rust support Documentation/rust/arch-support.rst | 1 + arch/s390/Kconfig | 1 + arch/s390/Makefile | 28 ++++++++++++++---------- arch/s390/include/asm/bug.h | 12 +++++++++++ arch/s390/include/asm/jump_label.h | 33 +++++++++++++++++------------ rust/Makefile | 1 + rust/bindgen_parameters | 7 ++++++ scripts/generate_rust_target.rs | 2 ++ scripts/min-tool-version.sh | 6 +++++- 9 files changed, 65 insertions(+), 26 deletions(-) base-commit: 50897c955902c93ae71c38698abb910525ebdc89 -- 2.51.0