linux-kernel - Re: [PATCH v2] arm64/module: Optimize module load time by optimizing PLT counting

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Message-Id: <159368896834.26148.7850220822704601386.b4-ty@arm.com>
Date:   Thu,  2 Jul 2020 12:24:10 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Will Deacon <will@...nel.org>,
        Saravana Kannan <saravanak@...gle.com>
Cc:     Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        kernel-team@...roid.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arm64/module: Optimize module load time by optimizing PLT counting

On Mon, 22 Jun 2020 18:18:02 -0700, Saravana Kannan wrote:
> When loading a module, module_frob_arch_sections() tries to figure out
> the number of PLTs that'll be needed to handle all the RELAs. While
> doing this, it tries to dedupe PLT allocations for multiple
> R_AARCH64_CALL26 relocations to the same symbol. It does the same for
> R_AARCH64_JUMP26 relocations.
> 
> To make checks for duplicates easier/faster, it sorts the relocation
> list by type, symbol and addend. That way, to check for a duplicate
> relocation, it just needs to compare with the previous entry.
> 
> [...]

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

[1/1] arm64/module: Optimize module load time by optimizing PLT counting
      https://git.kernel.org/arm64/c/d4e0340919fb

-- 
Catalin