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Fri, 6 Feb 2026 19:36:44 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9184E20040; Fri, 6 Feb 2026 19:36:44 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1A48A2004D; Fri, 6 Feb 2026 19:36:44 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 6 Feb 2026 19:36:44 +0000 (GMT) From: Jens Remus To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, x86@kernel.org, linux-mm@kvack.org, Steven Rostedt Cc: Jens Remus , Josh Poimboeuf , Masami Hiramatsu , Mathieu Desnoyers , Peter Zijlstra , Ingo Molnar , Jiri Olsa , Arnaldo Carvalho de Melo , Namhyung Kim , Thomas Gleixner , Andrii Nakryiko , Indu Bhagat , "Jose E. 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Howlett" , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Suren Baghdasaryan , Vlastimil Babka , Heiko Carstens , Vasily Gorbik , "Steven Rostedt (Google)" Subject: [PATCH v8 1/6] x86/vdso: Fix DWARF generation for getrandom() Date: Fri, 6 Feb 2026 20:36:37 +0100 Message-ID: <20260206193642.1580787-2-jremus@linux.ibm.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260206193642.1580787-1-jremus@linux.ibm.com> References: <20260206193642.1580787-1-jremus@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjA2MDE0MyBTYWx0ZWRfX//ngAxkJ97Id yxNP+DrkxShtUE0R+EYG2O9cYVZ+PEApJzk9rdGzGg9Yn+O+V/BshCZp+5IuZyFrL/OkFq2MKv8 Rk2ZnEHUYTl2CFGwhAPcdHJhMyC+BBBtJ0qTH1NQlvnRGSmIwjXjGDU88fL7WvzNug238MmNq8d hAG9jsyyWLB9/pMkpIPTPB7sI5Eo4wjzBFB/q+EquoiwScm7ss0ZXuGwx/bkcHhYAAf39ZkXdpw f0YxNQmvtIYLKio6h20fp2bDbOJX8pH+mc8ob45UBQJbo8b0C2CkFOcJuTs5XLAIJuuBmnk1P/1 ZqBM5SZ0+IaFgM/YNLSF6DNLSOXkELebFMXXJFDrDU3BIeQNt2A4nJJ3pINfVUTUVT/4UgV9NNI kt6ipeyF3vgq3ly6baLqtdVtzVzLvou0RjflvPuyEUgFnCNdmmln6Rtfxhzjn4dJfTLepTJBRSC EU2hQi9/H40LOvuS8kA== X-Proofpoint-GUID: pFAHhq3f3BpNXuJ4YV9EfDzrLY0VwEwE X-Authority-Analysis: v=2.4 cv=DbAaa/tW c=1 sm=1 tr=0 ts=698642d3 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=VwQbUJbxAAAA:8 a=meVymXHHAAAA:8 a=oGMlB6cnAAAA:8 a=VnNF1IyMAAAA:8 a=rsc5PF6bQGhcUx5MhlsA:9 a=2JgSa4NbpEOStq-L5dxp:22 a=NdAtdrkLVvyUPsUoGJp4:22 X-Proofpoint-ORIG-GUID: j1PEc7-sCw_jGVfvfOiamut4VxifSQth X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-06_05,2026-02-05_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 adultscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1011 suspectscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2601150000 definitions=main-2602060143 X-Rspamd-Queue-Id: 43A84140015 X-Stat-Signature: 9nikh8ratay5ky3xff6zkxmm8ekg3ko6 X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1770406633-710109 X-HE-Meta: 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 XM1vKJwh d/ABkEZBQhNapGQhK8a4gezZTTuYDc8rbd4kkObIWd2eHtp8sL53RV+SDOh8QjqaxZL8vU2GojCuY2G3S2JTzC8jgY8J6MKeu6rjxIrHnzG/d3v/N93GkjkEkp5g8l1RV/i9bVuCm5kbmTxP+7qo0wuSjUVVFo4rcoi+Y3w6hvz0UIz7egU5zsP2h4DWbHrC1DPUvmWFsEfxyxdOp19RUQdD+JOFvMjtntQSIGRk3UEawH7wrcfz2TxDnhvW39LZ/Fsv7yWIGR1TbOoZBaHf0nwxBgvPBQkYkc/bUgy6Bg61Cza2yBcPMV+T9hr3aXLJCRvBlwU5vUjoN/qZtCsBXfAFTmAoK63X9ikStgD3w6Y+upwRPlAQYLdM2bKvRDxAoRoq++AoPphHnXfs6Pot2308qGJwbMb0xTUiq6SSpALIZmukGAD76FsRdig== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Josh Poimboeuf Add CFI annotations to the VDSO implementation of getrandom() so it will have valid DWARF unwinding metadata. Fixes: 33385150ac45 ("x86: vdso: Wire up getrandom() vDSO implementation") Signed-off-by: Josh Poimboeuf Signed-off-by: Steven Rostedt (Google) Acked-by: H. Peter Anvin (Intel) Signed-off-by: Jens Remus --- arch/x86/entry/vdso/vdso64/vgetrandom-chacha.S | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86/entry/vdso/vdso64/vgetrandom-chacha.S b/arch/x86/entry/vdso/vdso64/vgetrandom-chacha.S index bcba5639b8ee..cc82da9216fb 100644 --- a/arch/x86/entry/vdso/vdso64/vgetrandom-chacha.S +++ b/arch/x86/entry/vdso/vdso64/vgetrandom-chacha.S @@ -4,7 +4,7 @@ */ #include -#include +#include .section .rodata, "a" .align 16 @@ -22,7 +22,7 @@ CONSTANTS: .octa 0x6b20657479622d323320646e61707865 * rcx: number of 64-byte blocks to write to output */ SYM_FUNC_START(__arch_chacha20_blocks_nostack) - + CFI_STARTPROC .set output, %rdi .set key, %rsi .set counter, %rdx @@ -175,4 +175,5 @@ SYM_FUNC_START(__arch_chacha20_blocks_nostack) pxor temp,temp ret + CFI_ENDPROC SYM_FUNC_END(__arch_chacha20_blocks_nostack) -- 2.51.0