linux-kernel - Re: [PATCH v7 2/2] bpftool: Add CET-aware symbol matching for x86

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Message-ID: <aed65fc2-8d34-4407-a049-fdc1ff5111ec@linux.dev>
Date: Mon, 25 Aug 2025 13:39:33 -0700
From: Yonghong Song <yonghong.song@...ux.dev>
To: chenyuan_fl@....com, olsajiri@...il.com
Cc: aef2617b-ce03-4830-96a7-39df0c93aaad@...nel.org, andrii@...nel.org,
 ast@...nel.org, bpf@...r.kernel.org, chenyuan@...inos.cn,
 daniel@...earbox.net, linux-kernel@...r.kernel.org, qmo@...nel.org
Subject: Re: [PATCH v7 2/2] bpftool: Add CET-aware symbol matching for x86_64
 architectures



On 8/24/25 7:20 PM, chenyuan_fl@....com wrote:
> From: Yuan Chen <chenyuan@...inos.cn>
>
> Adjust symbol matching logic to account for Control-flow Enforcement
> Technology (CET) on x86_64 systems. CET prefixes functions with
> a 4-byte 'endbr' instruction, shifting the actual hook entry point to
> symbol + 4.
>
> Signed-off-by: Yuan Chen <chenyuan@...inos.cn>

Acked-by: Yonghong Song <yonghong.song@...ux.dev>