linux-kernel - Re: [PATCH v3 20/29] riscv/kernel: update __show

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Date: Sun, 12 May 2024 19:10:59 +0200
From: Alexandre Ghiti <alex@...ti.fr>
To: Deepak Gupta <debug@...osinc.com>, paul.walmsley@...ive.com,
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Subject: Re: [PATCH v3 20/29] riscv/kernel: update __show_regs to print shadow
 stack register

On 04/04/2024 01:35, Deepak Gupta wrote:
> Updating __show_regs to print captured shadow stack pointer as well.
> On tasks where shadow stack is disabled, it'll simply print 0.
>
> Signed-off-by: Deepak Gupta <debug@...osinc.com>
> ---
>   arch/riscv/kernel/process.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c
> index ebed7589c51a..079fd6cd6446 100644
> --- a/arch/riscv/kernel/process.c
> +++ b/arch/riscv/kernel/process.c
> @@ -89,8 +89,8 @@ void __show_regs(struct pt_regs *regs)
>   		regs->s8, regs->s9, regs->s10);
>   	pr_cont(" s11: " REG_FMT " t3 : " REG_FMT " t4 : " REG_FMT "\n",
>   		regs->s11, regs->t3, regs->t4);
> -	pr_cont(" t5 : " REG_FMT " t6 : " REG_FMT "\n",
> -		regs->t5, regs->t6);
> +	pr_cont(" t5 : " REG_FMT " t6 : " REG_FMT " ssp : " REG_FMT "\n",
> +		regs->t5, regs->t6, get_active_shstk(current));
>   
>   	pr_cont("status: " REG_FMT " badaddr: " REG_FMT " cause: " REG_FMT "\n",
>   		regs->status, regs->badaddr, regs->cause);


Reviewed-by: Alexandre Ghiti <alexghiti@...osinc.com>