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From: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, Michael Ellerman <mpe@ellerman.id.au>
Cc: amodra@gmail.com
Subject: Re: [PATCH] powerpc/vdso: Fix incorrect CFI in gettimeofday.S
Date: Tue, 17 May 2022 13:03:21 +0530	[thread overview]
Message-ID: <1652772528.r6qrwbbda5.naveen@linux.ibm.com> (raw)
In-Reply-To: <20220502125010.1319370-1-mpe@ellerman.id.au>

Michael Ellerman wrote:
> 
> diff --git a/arch/powerpc/kernel/vdso/gettimeofday.S b/arch/powerpc/kernel/vdso/gettimeofday.S
> index eb9c81e1c218..0aee255e9cbb 100644
> --- a/arch/powerpc/kernel/vdso/gettimeofday.S
> +++ b/arch/powerpc/kernel/vdso/gettimeofday.S
> @@ -22,12 +22,15 @@
>  .macro cvdso_call funct call_time=0
>    .cfi_startproc
>  	PPC_STLU	r1, -PPC_MIN_STKFRM(r1)
> +  .cfi_adjust_cfa_offset PPC_MIN_STKFRM
>  	mflr		r0
> -  .cfi_register lr, r0
>  	PPC_STLU	r1, -PPC_MIN_STKFRM(r1)
> +  .cfi_adjust_cfa_offset PPC_MIN_STKFRM
>  	PPC_STL		r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1)

<snip>

> @@ -46,6 +50,7 @@
>  	mtlr		r0
>    .cfi_restore lr
>  	addi		r1, r1, 2 * PPC_MIN_STKFRM
> +  .cfi_def_cfa_offset 0

Should this be .cfi_adjust_cfa_offset, given that we used that at the 
start of the function?


- Naveen


  parent reply	other threads:[~2022-05-17  8:02 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-02 12:50 [PATCH] powerpc/vdso: Fix incorrect CFI in gettimeofday.S Michael Ellerman
2022-05-02 14:27 ` Segher Boessenkool
2022-05-02 23:53   ` Alan Modra
2022-05-04 12:34     ` Michael Ellerman
2022-05-04 12:27   ` Michael Ellerman
2022-05-04 14:08     ` Segher Boessenkool
2022-05-08 11:11 ` Michael Ellerman
2022-05-17  7:33 ` Naveen N. Rao [this message]
2022-05-17 12:32   ` Michael Ellerman
2022-05-18  9:38     ` Naveen N. Rao
2022-05-19  1:30     ` Alan Modra
2022-05-20 12:14       ` Naveen N. Rao

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