Re: Announce: Revisiting Patchwork (aka, if you have a patch in patchwork, your attention is ***required***!)

[Bryan Hundven <bryanhundven@gmail.com>]

Dan,

On Thu, Dec 4, 2014 at 5:46 PM, Dan Wilder <Dan.Wilder@watchguard.com> wrote:
> Thanks Bryan.  Yup their backtraces look just like mine.

:)

> I'll keep an eye on that bug, if somebody fixes it before I get a Round Tuit that'd be nice for me!  Otherwise I guess the patch goes upstream.

Indeed. You can always add yourself to "cc" on the bug. I saw some
other related bugs in my search, though they are "AIX"... that is
still "powerpc" (rs6000).

Also, Check the patches in comment #4.

As a related... but slightly off-topic thought... Another thing I'd
like to change about crosstool-ng: I dislike all these "for upstream"
patches we harbor in patches/. Maybe I'll work on a RFC on how we can
deal with them.

Cheers,

-Bryan

> --
> Dan Wilder
> ________________________________________
> From: Bryan Hundven [bryanhundven@gmail.com]
> Sent: Thursday, December 04, 2014 5:42 PM
> To: Dan Wilder
> Cc: crossgcc@sourceware.org
> Subject: Re: Announce: Revisiting Patchwork (aka, if you have a patch in patchwork, your attention is ***required***!)
>
> Dan,
>
> On Thu, Dec 4, 2014 at 4:24 PM, Dan Wilder <Dan.Wilder@watchguard.com> wrote:
>> Any unwind patches for ppc in glibc-2.19?
>
> I don't see any in patchwork.
>
>> A small c++ program fails nicely on 32-bit ppc:
>> ------------------------------------------------------------------------------------------
>> #include <iostream>
>>
>> static void cause_exn(void)
>> {
>>     std::cout << "cause_exn invoked" << std::endl;
>>     throw 20;
>>     std::cout << "cause_exn done" << std::endl;
>> }
>>
>> int main(int argc, char **argv)
>> {
>>     std::cout << "Starting" << std::endl;
>>     try {
>>         cause_exn();
>>     } catch (int e) {
>>         std::cout <<  "Caught exception " << e << std::endl;
>>     }
>>     std::cout << "Exiting" << std::endl;
>>     return 0;
>> }
>> -----------------------------------------------------------------------------------------------
>>
>> Expected output is:
>>
>> Starting
>> cause_exn invoked
>> Caught exception 20
>> Exiting
>>
>> on 32-bit ppc with glibc-2.19/gcc-4.8.3:
>>
>> Starting
>> cause_exn invoked
>> Aborted (core dumped)
>>
>> Have done some preliminary work and will have a patch for the list in a few weeks, but it would be a shame if somebody else has already gone there!
>
> Have you checked upstream?
> https://sourceware.org/git/?p=glibc.git;a=shortlog;h=refs/heads/master
>
>> ppc_64 works fine.  As does x86, x86_64 on the same test program.
>
> Hrm...
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62231
> Related?
>
>> --
>> Dan Wilder
>> Btw thanks Bryan for taking the cross-gcc helm and thanks Yann for the excellent work!
>
> :)
>
>>
>>
>> --
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>>
>
> Cheers,
>
> -Bryan

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