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RE: [Patch] Microblaze: Port of Linux gdbserver
- From: Ajit Kumar Agarwal <ajit dot kumar dot agarwal at xilinx dot com>
- To: Pedro Alves <palves at redhat dot com>, Michael Eager <eager at eagercon dot com>, "Joel Brobecker" <brobecker at adacore dot com>
- Cc: "gdb-patches at sourceware dot org" <gdb-patches at sourceware dot org>, Vinod Kathail <vinodk at xilinx dot com>, Vidhumouli Hunsigida <vidhum at xilinx dot com>, "Nagaraju Mekala" <nmekala at xilinx dot com>
- Date: Fri, 19 Dec 2014 18:06:06 +0000
- Subject: RE: [Patch] Microblaze: Port of Linux gdbserver
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-----Original Message-----
From: gdb-patches-owner@sourceware.org [mailto:gdb-patches-owner@sourceware.org] On Behalf Of Pedro Alves
Sent: Friday, December 19, 2014 4:33 PM
To: Ajit Kumar Agarwal; Michael Eager; Joel Brobecker
Cc: gdb-patches@sourceware.org; Vinod Kathail; Vidhumouli Hunsigida; Nagaraju Mekala
Subject: Re: [Patch] Microblaze: Port of Linux gdbserver
On 12/19/2014 10:26 AM, Ajit Kumar Agarwal wrote:
> -----Original Message-----
> From: Pedro Alves [mailto:palves@redhat.com]
> Sent: Thursday, December 18, 2014 4:58 PM
> To: Ajit Kumar Agarwal; Michael Eager; Joel Brobecker
> Cc: gdb-patches@sourceware.org; Vinod Kathail; Vidhumouli Hunsigida;
> Nagaraju Mekala
> Subject: Re: [Patch] Microblaze: Port of Linux gdbserver
>
> On 12/18/2014 08:56 AM, Ajit Kumar Agarwal wrote:
>> From: Pedro Alves [mailto:palves@redhat.com] On 10/17/2014 08:22 PM,
>> Ajit Kumar Agarwal wrote:
>>
>>> Gdb.base gdb testsuite is run and here is the status of gdb testsuite run for gdb.base.
>>>
>>> === gdb Summary ===
>>>
>>> # of expected passes 7804
>>> # of unexpected failures 2263
>>
>>>> Over 2000 unexpected failures is not very reassuring though.
>>>> Have you looked at the logs to get an idea of what might be broken?
>>
>> We have looked at the log files for the failures. Here are the main categories of the failure.
>>
>> 1. push_dummy_code is not implemented for Micro blaze port due to this there are 350+ failures.
>
>>> Eh, no inferior function call support. Are you planning on implementing this?
>
>>> You can set gdb,cannot_call_functions in your board file to skip the affected tests meanwhile.
>
>> 2. Failures for signals is around 357.
>
>>> What sort of failures?
>
>> 3. Watch point failures are around 817.
>
>>> Set gdb,no_hardware_watchpoints in the board file.
>
> Thanks. We have used the following gdb options as per your suggestions.
>
> set_board_info gdb,no_hardware_watchpoints 1 set_board_info
> gdb,cannot_call_functions 1 set_board_info gdb,nosignals 1
>
>>To be clear, gdb,nosignals is for targets that truly have no concept of signals. A Linux port should not need that... It's probably masking out real problems.
Thanks. I have added gdb,nosignals to investigate the failures for signal handling. Sorry for that.
> The gdb summary for gdb.base is as follows:
>
> === gdb Summary ===
>
> # of expected passes 6047
> # of unexpected failures 539
>>FYI, this is way higher than I'd expect after disabling all that functionality.
Could you please let me know what is the expected failures after disabling all that functionality.
Thanks & Regards
Ajit
> # of expected failures 17
> # of known failures 21
> # of unresolved testcases 26
> # of untested testcases 43
> # of unsupported tests 133
>
> I will send the modified patch incorporating your comments.
Thanks.
Pedro Alves