[edk2-devel] [PATCH 0/3] Add support for gdb and lldb

[Rebecca Cran]

I should note my comments are against 
https://github.com/ajfish/edk2/tree/BZ3500-gdb, not the patches you sent 
out.

AARCH64 is working great! The only thing I noticed that doesn't look 
quite right is the following message on startup when running gdb -ex 
"target remote localhost:1234" -ex "source efi_gdb.py" -ex "efi":


Traceback (most recent call last):
   File "efi_gdb.py", line 804, in invoke
     self.restore_user_state()
   File "efi_gdb.py", line 690, in restore_user_state
     self.user_selected_frame.select()
gdb.error: Frame is invalid.
Traceback (most recent call last):
   File "efi_gdb.py", line 822, in invoke
     gdb.execute('efi symbols --extended')
gdb.error: Error occurred in Python: Frame is invalid.
Error occurred in Python: Error occurred in Python: Frame is invalid.


Running `bt` shows the full set of frames except for the last one which 
as expected is shown as ??.


-- 

Rebecca Cran


On 8/11/21 5:22 PM, Andrew Fish wrote:
>
>> On Aug 11, 2021, at 3:11 PM, Rebecca Cran <rebecca at nuviainc.com> wrote:
>>
>> I realized the Arm gcc 10.3 aarch64 download from https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-a/downloads uses Python 2.7.18 and not Python 3, so the f-Strings and likely more cause problems. I suspect at this point there's little point putting effort into supporting Python 2.
>>
> I’ve not tested on ARM yet, so please let me know if it works. I’d like to avoid Python 2.7 support is possible given it is passed its best by date.
>
>> I noticed a couple of issues though: in efi_debugging.py the Attributes text is partially underlined with the non-ASCII characters '——————' instead of '----------'.
>>
> Thanks did not notice that.
>
>>       Attributes
>>       ——————----
>>       _dict_ : dictionay
>>
>>
>> There are also a couple of typos of 'dictionary':
>>
>>
>> _dict_ : dictionay
>>
> Shoot though I fixed those




>
> Thanks,
>
> Andrew Fish
>
>> -- 
>> Rebecca Cran
>>
>>
>> On 8/8/21 3:46 PM, Andrew Fish via groups.io wrote:
>>> This patch set adds debugging support for gdb and lldb.
>>> It also adds generic debugging classes that use a file like object to
>>> make it easy to import into any debugger that supports Python.
>>>
>>> Since these debugging scripts don't depend on any EFI code I was thinking
>>> we could place them in the root of the repo to be easy to discover.
>>>
>>> I've tested gdb on Ubuntu and lldb on macOS for IA32 and X64.
>>>
>>> Andrew Fish (3):
>>>    efi_debugging.py: - Add debugger agnostic debugging Python Classes
>>>    efi_gdb.py: - Add gdb EFI commands and pretty Print
>>>    efi_lldb.py: - Add lldb EFI commands and pretty Print
>>>
>>>   efi_debugging.py | 2187 ++++++++++++++++++++++++++++++++++++++++++++++
>>>   efi_gdb.py       |  918 +++++++++++++++++++
>>>   efi_lldb.py      | 1044 ++++++++++++++++++++++
>>>   3 files changed, 4149 insertions(+)
>>>   create mode 100755 efi_debugging.py
>>>   create mode 100755 efi_gdb.py
>>>   create mode 100755 efi_lldb.py
>>>


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