From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Raphael Gault <raphael.gault@arm.com>
Cc: julien.thierry@arm.com, peterz@infradead.org,
catalin.marinas@arm.com, will.deacon@arm.com,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [RFC 5/6] arm64: sleep: Add stack frame setup for __cpu_supsend_enter
Date: Tue, 23 Apr 2019 15:37:54 -0500 [thread overview]
Message-ID: <20190423203754.mdtjssru2h2rzqou@treble> (raw)
In-Reply-To: <20190409135243.12424-6-raphael.gault@arm.com>
In $SUBJECT, s/supsend/suspend/.
On Tue, Apr 09, 2019 at 02:52:42PM +0100, Raphael Gault wrote:
> Annotate cpu_resume and _cpu_resume to silence objtool warning
> about non-standard stack frame.
>
> Signed-off-by: Raphael Gault <raphael.gault@arm.com>
> ---
> arch/arm64/kernel/sleep.S | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm64/kernel/sleep.S b/arch/arm64/kernel/sleep.S
> index 3e53ffa07994..eb434525fe82 100644
> --- a/arch/arm64/kernel/sleep.S
> +++ b/arch/arm64/kernel/sleep.S
> @@ -90,6 +90,7 @@ ENTRY(__cpu_suspend_enter)
> str x0, [x1]
> add x0, x0, #SLEEP_STACK_DATA_SYSTEM_REGS
> stp x29, lr, [sp, #-16]!
> + mov x29, sp
Why is it changing the actual code? The patch description indicates
that it's only adding annotations.
> bl cpu_do_suspend
> ldp x29, lr, [sp], #16
> mov x0, #1
> @@ -146,3 +147,6 @@ ENTRY(_cpu_resume)
> mov x0, #0
> ret
> ENDPROC(_cpu_resume)
> +
> + asm_stack_frame_non_standard cpu_resume
> + asm_stack_frame_non_standard _cpu_resume
> --
> 2.17.1
>
--
Josh
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next prev parent reply other threads:[~2019-04-23 20:38 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-09 13:52 [PATCH 0/6] objtool: Add support for Arm64 Raphael Gault
2019-04-09 13:52 ` [RFC 1/6] objtool: Refactor code to make it more suitable for multiple architecture support Raphael Gault
2019-04-23 20:13 ` Josh Poimboeuf
2019-04-24 16:11 ` Raphael Gault
2019-04-24 16:17 ` Josh Poimboeuf
2019-04-09 13:52 ` [RFC 2/6] objtool: arm64: Add required implementation for supporting the aarch64 architecture in objtool Raphael Gault
2019-04-09 16:20 ` Peter Zijlstra
2019-04-23 20:18 ` Josh Poimboeuf
2019-04-24 16:16 ` Raphael Gault
2019-04-24 16:23 ` Josh Poimboeuf
2019-04-09 13:52 ` [RFC 3/6] objtool: arm64: Adapt the stack frame checks and the section analysis for the arm architecture Raphael Gault
2019-04-09 16:12 ` Peter Zijlstra
2019-04-09 16:24 ` Mark Rutland
2019-04-09 16:27 ` Julien Thierry
2019-04-09 16:33 ` Raphaël Gault
2019-04-23 20:36 ` Josh Poimboeuf
2019-04-24 16:32 ` Raphael Gault
2019-04-24 16:56 ` Josh Poimboeuf
2019-04-25 8:12 ` Raphael Gault
2019-04-25 8:33 ` Peter Zijlstra
2019-04-25 16:25 ` Josh Poimboeuf
2019-04-30 12:20 ` Raphael Gault
2019-05-01 15:09 ` Raphael Gault
2019-04-24 10:36 ` Julien Thierry
2019-04-09 13:52 ` [RFC 4/6] arm64: assembler: Add macro to annotate asm function having non standard stack-frame Raphael Gault
2019-04-24 10:44 ` Julien Thierry
2019-04-09 13:52 ` [RFC 5/6] arm64: sleep: Add stack frame setup for __cpu_supsend_enter Raphael Gault
2019-04-23 20:37 ` Josh Poimboeuf [this message]
2019-04-09 13:52 ` [RFC 6/6] objtool: arm64: Enable stack validation for arm64 Raphael Gault
2019-04-09 14:57 ` [PATCH 0/6] objtool: Add support for Arm64 Josh Poimboeuf
2019-04-09 17:43 ` Ard Biesheuvel
2019-04-10 3:37 ` Josh Poimboeuf
2019-04-10 7:20 ` Julien Thierry
2019-04-23 21:09 ` Josh Poimboeuf
2019-04-24 16:08 ` Raphael Gault
2019-04-24 16:14 ` Josh Poimboeuf
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