Paul,

I like this feature very much. Actually, I did some POC one year ago but I did finalize it.

In my POC, I could use EBP to tack the stack frame on IAS32 arch.
But for x64, I tried to use –keepexceptiontable flag to explain stack frame from the debug section of image.
I may workson MSFT toolchain, but it did now work well for GCC toolchain.

I think Eric could help to verify MSFT for your patch. If it works well, that’s will be great!

Say again, I like this feature!!!:-)

Thanks!
Jeff


发件人: Paulo Alcantara<mailto:pcacjr@zytor.com>
发送时间: 2017年11月14日 21:23
收件人: edk2-devel@lists.01.org<mailto:edk2-devel@lists.01.org>
抄送: Rick Bramley<mailto:richard.bramley@hp.com>; Laszlo Ersek<mailto:lersek@redhat.com>; Andrew Fish<mailto:afish@apple.com>; Eric Dong<mailto:eric.dong@intel.com>
主题: Re: [edk2] [RFC 0/1] Stack trace support in X64 exception handling

Hi,

On 14/11/2017 10:47, Paulo Alcantara wrote:
> Hi,
>
> This series adds stack trace support during a X64 CPU exception.
>
> Informations like back trace, stack contents and image module names
> (that were part of the call stack) will be dumped out.
>
> We already have such support in ARM/AArch64 (IIRC) exception handling
> (thanks to Ard), and then I thought we'd also deserve it in X64 and
> IA-32 platforms.
>
> What do you think guys?
>
> BTW, I've tested this only with OVMF (X64 only), using:
>    - gcc-6.3.0, GCC5, NOOPT
>
> Any other tests  would be really appreciable.

I've attached a file to show you how the trace would look like.

Thanks!
Paulo

>
> Thanks!
> Paulo
>
> Repo:   https://github.com/pcacjr/edk2.git
> Branch: stacktrace_x64
>
> Cc: Rick Bramley <richard.bramley@hp.com>
> Cc: Andrew Fish <afish@apple.com>
> Cc: Eric Dong <eric.dong@intel.com>
> Cc: Laszlo Ersek <lersek@redhat.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
> ---
>
> Paulo Alcantara (1):
>    UefiCpuPkg/CpuExceptionHandlerLib/X64: Add stack trace support
>
>   UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c | 344 +++++++++++++++++++-
>   1 file changed, 342 insertions(+), 2 deletions(-)
>