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Howlett" , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Suren Baghdasaryan , Vlastimil Babka , Heiko Carstens , Vasily Gorbik , "Steven Rostedt (Google)" Subject: [PATCH v6 1/6] x86/vdso: Fix DWARF generation for getrandom() Date: Thu, 29 Jan 2026 12:27:21 +0100 Message-ID: <20260129112726.892340-2-jremus@linux.ibm.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260129112726.892340-1-jremus@linux.ibm.com> References: <20260129112726.892340-1-jremus@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 5P16niUu5fnM_03ZbV24Md8SiiyC6Ndj X-Authority-Analysis: v=2.4 cv=Uptu9uwB c=1 sm=1 tr=0 ts=697b4427 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=vUbySO9Y5rIA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=meVymXHHAAAA:8 a=VnNF1IyMAAAA:8 a=rsc5PF6bQGhcUx5MhlsA:9 a=2JgSa4NbpEOStq-L5dxp:22 X-Proofpoint-ORIG-GUID: -gEHCNz9_kSMTT1AgYGNNuOuZqwKSrMp X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTI5MDA3NiBTYWx0ZWRfXzFMmW3i8oKoP ife3f0NiGzr8EAlHvpVxAh4fbgqeizX5KArUmRVt1ai4yW4+0sus5vEcaCCZAX9ycVCXXvclEtn 0hliKLvcXi5zivMf56FH4Ke7kfuYBn83NbIyopX7ZFsi3WitAZWH8mmOWZXHnmm7Hh4cZ2BINj6 Vdh7NJXx4a7MprUSEG9USzMlCrKj9/lhBoouzQ9CcUbYmysqZleqs7WI+BwnFMgyY15qoX7oPqD I+WHKtoV6Z5DwM8hMYMPVSgFkhUZPOQXU8oSyY9b5Zzz09AvEQKw+ozmch70GU5tw8S7nv7Kk4R wJaSEr8s0OBlPVWWLHdXmuukfQHs9JGicDhgd7SMvuVEBZwf5EYkDQG+N96e7BZsKvlX/tPeG96 JM/WxWM9F6CEKy1M2d+J/bFstQ8/Y8R3veUXzr7vvDeSz7kjgG3L2GIpByEdW5nl5g0r5oBjR4f 4ILCyoRGelB551zGyBw== 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=2026-01-29_02,2026-01-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 clxscore=1015 lowpriorityscore=0 phishscore=0 adultscore=0 impostorscore=0 bulkscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2601150000 definitions=main-2601290076 X-Stat-Signature: sz86fj5arihqwcyjh94quoeifninwow1 X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: BE696180004 X-HE-Tag: 1769686084-427035 X-HE-Meta: U2FsdGVkX1+B+bh7ZTsFV+G0xS5pr8Vj7PhRhA72LL2q3D7JH16FUzjt9dkchGGFJL8A4Z7HsfIfCpCQ6B7buDHfgSZ+qWsTu0c7vNsIdVghjqv/WzigNtcmO6QzBbhfBWx8D7RSLGGJow8mO2ZPwoGMRfPEf8dqQNfeaox3UYFY9Eqs1DlARyuHI1iAbqRNdl2qPSfBuzTiEO8391mntityqLbN+JzNO3RBJ2ZWhH2XBEmjDzDNd8Fzr/7+oN4dGkd4j5pZFrzPSCMZ/dn0WMqTEXnZqzaZ1pkrDPYFJ8legHbHz0LHgQdiAbe8Z+R8LFrEbvMSR1FCDtxeK2hyUvEP0kY5SQJiVcr4wubF/E5ahKNM/cKLwsNSJ7nb82srdvpdN4zBajBKjxZP2/9n3cj3kVNcRdSkLK4OwY4Jdac0JAzpUzpInvuftMuiYEzsLICk7oT+b5jP1p/F5XsP9Gj7ipCb2C510cKByD+uSWIR83ddmNq4yqT2tkGlemp+BWLbuupGK20QtRg7j9S4TdlauJSe0HQqXDra3d7fvHHXCrFt+0EixUk/BWm5m2cAdZzegIHTp9Uuo7BLCxfOKvII2EM8492ozh0O1RMWIVWNFYg+/HUp91wL7bqHfsdXtUNDSIQsGG5Fnlo+wUkGPp1Xz5Zi9mWdkJ/r4OpeI9NlmUhZAmG8T+llKXZSIz6FWTTNxthStEV68GQD3R5HxUWqBBi70iMbVCj52mybazca1ij93pc9scDfF0gaVv1K2zx+csiKryi6dNDM9g9HtyiNYhVdJyD4nRr/Oxy3BMZaKtwkrkTh2HpYuxzlWP6OQ/K4BYtG1L/yRjmRz8YbEV2smZMOm3FLvbqO+3CAOW0G2e5plOot4u1WWIyQ5Ao/rxH14NM4o9iPwqkStsMmyH8e1nAduwSCyEZaLSpkJWOred1rXH1QXzwuaBT9DklTw1jhmC/Y5dIibDL+R3a HToYneCm ehHu7LK27uk3c4zJ8/4EYfQgsnV/lQXD5t8ZPtnp6hcmd2GTQ7lOlpyOdhrB8tojr+0MlilgV3nWe24NRRhDlGydm4FfZXg/Hldeawv3EVmGnT6jucXv2wEfzAVM6gK7itP8+4AnxuQ0mk93XSiv/dSyyo6RJbLWbbVXONVdnC5d2Tug99JwQ8xM6gCOO5Kc7KF2Squz4L+uHTpLNt3Y3i4BgsOyyl2jBXENIwin1NTpTbutBMH5iqT0IUyGYTZnOsy2C6oI1YKQy6y4R+ZxMqKzpVYcCJKUg7pH5wjPM+Yi8YbLxxtuRZPW+rkGSztlb8pof2W4lwM5ZqX9EZGi9EEDwN9sc7+XCkwjU1bTSxBhCrKX2dxAO+RzMhok4N42/DZC2 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) Signed-off-by: Jens Remus --- arch/x86/entry/vdso/vgetrandom-chacha.S | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86/entry/vdso/vgetrandom-chacha.S b/arch/x86/entry/vdso/vgetrandom-chacha.S index bcba5639b8ee..cc82da9216fb 100644 --- a/arch/x86/entry/vdso/vgetrandom-chacha.S +++ b/arch/x86/entry/vdso/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