linux-kernel - Re: [PATCH] arm64:uprobe fix the uprobe SWBP

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Message-Id: <167024898950.269185.3140250803235881009.b4-ty@kernel.org>
Date:   Mon,  5 Dec 2022 15:43:02 +0000
From:   Will Deacon <will@...nel.org>
To:     catalin.marinas@....com, guo.ziliang@....com.cn
Cc:     kernel-team@...roid.com, Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        huang.junhua@....com.cn
Subject: Re: [PATCH] arm64:uprobe fix the uprobe SWBP_INSN in big-endian

On Fri, 2 Dec 2022 15:11:10 +0800 (CST), guo.ziliang@....com.cn wrote:
> From: junhua huang <huang.junhua@....com.cn>
> 
> We use uprobe in aarch64_be, which we found the tracee task would exit
> due to SIGILL when we enable the uprobe trace.
> We can see the replace inst from uprobe is not correct in aarch big-endian.
> As in Armv8-A, instruction fetches are always treated as little-endian,
> we should treat the UPROBE_SWBP_INSN as little-endian。
> 
> [...]

Applied to arm64 (for-next/insn), thanks!

[1/1] arm64:uprobe fix the uprobe SWBP_INSN in big-endian
      https://git.kernel.org/arm64/c/60f07e22a73d

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev