From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65F951FC0EA; Tue, 5 May 2026 12:34:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777984459; cv=none; b=XDcmvgJBjZ0JaS6zrAVBgTVbvw60v6/v8qBWYbJPFNLjWGTpQ/jqh60EKBE+2NRV7FHNkLnBwFE1YGYCD0qDK4OP9SuqmfTjDX0PMx+5nL/eFKNf3iMY5mdK0RgXAZrAk8/pGGXrNgJeDiRiRwe5/R+Y3DZqMRXc3NBiX+zKq/A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777984459; c=relaxed/simple; bh=/Zbhu2RURXstbyfQDbeI6zgK+b2t5jauoCm0kDegmEI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QPd7yXDcplZ5Jb8YBzNKeP/7SdfgpDOyaXjPshTChMXhY3P63JglmjGL538a+KVUfau3RRIjN8jZFKEs+DPUZenAWzG0z/CGs6rJ/7weyXDTr1G9XGTb2X95B0EFfC8ekojk2LGYviyT7YMiQNPlvf85oKFB5thtmgfyn6U2hHY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=jMWdBP3m; arc=none smtp.client-ip=148.163.158.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="jMWdBP3m" Received: from pps.filterd (m0353725.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6458CHe73828299; Tue, 5 May 2026 12:33:48 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=nZ3DtYU6oaP7UVk4P zUNWALcciYCvdSqiN7dJ9VBjQ0=; b=jMWdBP3mSv3PeOeQRl4pm7AB2L3LS00K9 WkkTLydfu7Rlw7brwMLzSzyfHeZ2AGOOx4c5JRoNFe25rAXHUTDe/5FH3S6ZGIHu cJfJfagsP3aM6CvnH/A/ohryiUCCoI24lvpazMu0Ze5I77/L0IBZpmax+F7OSubv jc4QYz7jWtAGXK0WX4HJLLx0WDI1AMsckkfabnjYS1goQpiXJjCmJ1zAHiTJ74aR SMsehFzgV8eltn6Qu7ckrAEDRjrZcTfRHwGVuNdcAC3jECSNZyQhQCVwODklJ6NI KHuC4pUfZlS00TfX98oZoXONh5gxqzosZVBIn0B8TSRY/KRQ3wiqA== Received: from ppma11.dal12v.mail.ibm.com (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4dw9xxk80b-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 05 May 2026 12:33:47 +0000 (GMT) Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 645COOav030967; Tue, 5 May 2026 12:33:46 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 4dwx9y9aq5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 05 May 2026 12:33:46 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (smtpav06.fra02v.mail.ibm.com [10.20.54.105]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 645CXgPE41681376 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 5 May 2026 12:33:42 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id ACD552004B; Tue, 5 May 2026 12:33:42 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2FCCA2004E; Tue, 5 May 2026 12:33:42 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 5 May 2026 12:33:42 +0000 (GMT) From: Jens Remus To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, x86@kernel.org, Steven Rostedt , Josh Poimboeuf , Indu Bhagat , Peter Zijlstra , Dylan Hatch , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Mathieu Desnoyers , Kees Cook , Sam James , Andy Lutomirski Cc: Jens Remus , bpf@vger.kernel.org, linux-mm@kvack.org, Namhyung Kim , Andrii Nakryiko , "Jose E. Marchesi" , Beau Belgrave , Florian Weimer , "Carlos O'Donell" , Masami Hiramatsu , Jiri Olsa , Arnaldo Carvalho de Melo , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Heiko Carstens , Vasily Gorbik , Ilya Leoshkevich , "Steven Rostedt (Google)" Subject: [PATCH v10 1/6] x86/vdso: Fix DWARF generation for getrandom() Date: Tue, 5 May 2026 14:33:35 +0200 Message-ID: <20260505123340.3770025-2-jremus@linux.ibm.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260505123340.3770025-1-jremus@linux.ibm.com> References: <20260505123340.3770025-1-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: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA1MDExNCBTYWx0ZWRfX2GRnzfkZK3nF QDtkHe4+WgAmmsutPIAWoCB8RgyNwGDI4TzKmBtaFR/xVVaZ230slWJs2dtF3CB1ZppjGuyEpyG 7o7tZuOSyHJszsu3wjMTzUSVuE2/8+yOWgMmX96zOZ0X9RGZjyiQWfyqW/+ULfYNYgbnVlfB4d0 SdC/BBIC5F/NPj7ZwEgwIQYlEFepfQxSj9rfsKJOboK065dNCL9zzzNnQ40OFYk1Hwp43DUtlsF QrLifpnCRaZfVjoq9mLtQS0gCwBXC0e63yhW+T0CBJ3oUR9e5zqjOncFIOoMpLpaEthzc8Jnl+1 nhNE0EGTDsCHWvnfd0Q7R/U+RhJ4HPkAS5lg8kIVCbjXZYQRkn799zfIFVlaHlmnOIoZqS4d07i NBqONMKaXZf8X79kIHiDJKg+kGuPlWlnnrwNDceS0mVCS6ugsUfeSZW5DqIRCruX0RfvsyJKw82 Gk63x+Scd3ZVh7+kI9Q== X-Proofpoint-ORIG-GUID: R1pcfcGcWaQmFvKCckkQUkBEXRPT_U9P X-Proofpoint-GUID: x493YNJDYyNO_h4WMWnoSuua8T33_v-k X-Authority-Analysis: v=2.4 cv=ctWrVV4i c=1 sm=1 tr=0 ts=69f9e3ac cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h: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-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-05_02,2026-04-30_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 clxscore=1015 suspectscore=0 impostorscore=0 spamscore=0 malwarescore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605050114 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