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Marchesi" , Beau Belgrave , Linus Torvalds , Andrew Morton , Florian Weimer , Kees Cook , "Carlos O'Donell" , Sam James , Dylan Hatch , Borislav Petkov , Dave Hansen , David Hildenbrand , "H. Peter Anvin" , "Liam R. Howlett" , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Suren Baghdasaryan , Vlastimil Babka , Heiko Carstens , Vasily Gorbik , "Steven Rostedt (Google)" Subject: [PATCH v12 09/13] unwind_user/sframe/x86: Enable sframe unwinding on x86 Date: Wed, 19 Nov 2025 14:23:19 +0100 Message-ID: <20251119132323.1281768-10-jremus@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20251119132323.1281768-1-jremus@linux.ibm.com> References: <20251119132323.1281768-1-jremus@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=C/nkCAP+ c=1 sm=1 tr=0 ts=691dc4d9 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=6UeiqGixMTsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=7d_E57ReAAAA:8 a=JfrnYn6hAAAA:8 a=yPCof4ZbAAAA:8 a=mDV3o1hIAAAA:8 a=yMhMjlubAAAA:8 a=VnNF1IyMAAAA:8 a=Z4Rwk6OoAAAA:8 a=20KFwNOVAAAA:8 a=7mOBRU54AAAA:8 a=meVymXHHAAAA:8 a=XwrCaFRetDY-CReCfHAA:9 a=jhqOcbufqs7Y1TYCrUUU:22 a=1CNFftbPRP8L7MoqJWF3:22 a=HkZW87K1Qel5hWWM3VKY:22 a=wa9RWnbW_A1YIeRBVszw:22 a=2JgSa4NbpEOStq-L5dxp:22 X-Proofpoint-GUID: qS4Y8TTqC9FtlbsrfX7khCjnOJDgSrcu X-Proofpoint-ORIG-GUID: 7cQs6Ns7nh84AK2Fbbv6PR_KlobWW15j X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTE1MDAzMiBTYWx0ZWRfX2tkfdADBxKKl b0raGE/GJ1PpXLhanJS18QlqQ3Jm6BL2uUe5aNe1jYa8Bh1OwOCrpG4hkR8ykDzJll7vj/i+l0r XgFcCxDIoQ6sYJPfO4dboUws9KSBhN4+7ocrDqw1EV+L3v3+KXUC+bp9iyrIkbSEMkXUjlVposz HMgrMbVGGEuVFbaB2H2mk/KX6lvxADNTHckHj4tic4/UOfGd40JAKwVtq5+6ON5HRAk7t+r67uf cRBhBlqQL5i8WkkysOFrDB7cRec5d9GL98Y0Jzyy+tyWPdwlyhA/XSs8rPivNyorqyGqHFNWmzt +G4ZLA30jLJQyYbtD8A2yUtE5m7XYzDCd3ivWt31OGUHgYlqdm5HAw8BmZLrYUyVENexdGZMGAL p7RLyOIy2o+dNWEO8LoMtD6DJUda0Q== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-19_04,2025-11-18_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 spamscore=0 impostorscore=0 bulkscore=0 malwarescore=0 suspectscore=0 clxscore=1015 lowpriorityscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510240000 definitions=main-2511150032 Content-Type: text/plain; charset="utf-8" From: Josh Poimboeuf The x86 SFrame V2 implementation works fairly well, starting with binutils 2.45 with PC-relative SFrame FDE function start address encoding (though some issues are getting fixed in later versions). Enable it. [ Jens Remus: Reword commit message for SFrame V2 PC-relative FDE function start address encoding, starting with binutils 2.45. ] Cc: Masami Hiramatsu Cc: Mathieu Desnoyers Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Jiri Olsa Cc: Arnaldo Carvalho de Melo Cc: Namhyung Kim Cc: Thomas Gleixner Cc: Andrii Nakryiko Cc: Indu Bhagat Cc: "Jose E. Marchesi" Cc: Beau Belgrave Cc: Jens Remus Cc: Linus Torvalds Cc: Andrew Morton Cc: Florian Weimer Cc: Sam James Cc: Kees Cook Cc: "Carlos O'Donell" Signed-off-by: Josh Poimboeuf Signed-off-by: Steven Rostedt (Google) Signed-off-by: Jens Remus --- Notes (jremus): Changes in v12: - Reword commit message for SFrame V2 PC-relative FDE function start address encoding, starting with binutils 2.45. arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c4c21e8d0772..0e9a9c5ca0bc 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -299,6 +299,7 @@ config X86 select HAVE_UACCESS_VALIDATION if HAVE_OBJTOOL select HAVE_UNSTABLE_SCHED_CLOCK select HAVE_UNWIND_USER_FP if X86_64 + select HAVE_UNWIND_USER_SFRAME if X86_64 select HAVE_USER_RETURN_NOTIFIER select HAVE_GENERIC_VDSO select VDSO_GETRANDOM if X86_64 --=20 2.48.1