linux-kernel - Re: [PATCH 4/4] riscv: enable HAVE_LD_DEAD_CODE_DATA

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Message-ID: <20230512-spouse-pang-87f2e579baa2@wendy>
Date:   Fri, 12 May 2023 14:58:49 +0100
From:   Conor Dooley <conor.dooley@...rochip.com>
To:     Jisheng Zhang <jszhang@...nel.org>
CC:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Arnd Bergmann <arnd@...db.de>,
        <linux-riscv@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <linux-arch@...r.kernel.org>
Subject: Re: [PATCH 4/4] riscv: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION

On Thu, May 11, 2023 at 10:12:11PM +0800, Jisheng Zhang wrote:

> diff --git a/arch/riscv/kernel/vmlinux.lds.S b/arch/riscv/kernel/vmlinux.lds.S
> index e5f9f4677bbf..492dd4b8f3d6 100644
> --- a/arch/riscv/kernel/vmlinux.lds.S
> +++ b/arch/riscv/kernel/vmlinux.lds.S
> @@ -85,11 +85,11 @@ SECTIONS
>  	INIT_DATA_SECTION(16)
>  
>  	.init.pi : {
> -		*(.init.pi*)
> +		KEEP(*(.init.pi*))
>  	}

This section no longer exists in v6.4-rc1, it is now:
	/* Those sections result from the compilation of kernel/pi/string.c */
	.init.pidata : {
		*(.init.srodata.cst8*)
		*(.init__bug_table*)
		*(.init.sdata*)
	}

Cheers,
Conor.

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