On Mon, Oct 09, 2017 at 07:00:52PM +0200, Marcin Wojtas wrote:
> From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
>
> To avoid dereferencing junk when walking the call stack in exception
> handlers (which may prevent us from getting a full backtrace), set
> the frame pointer to 0x0 when first entering UEFI.
>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
> ---
> Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S b/Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S
> index 9265636..72f8cfc 100644
> --- a/Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S
> +++ b/Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S
> @@ -16,6 +16,7 @@
> #include <Library/ArmLib.h>
>
> ASM_FUNC(ArmPlatformPeiBootAction)
> + mov x29, xzr
> ret
>
> //UINTN
> --
> 1.8.3.1
>
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