microblaze: pthread_cancel problem

[Mike Frysinger]

On 29 Jul 2016 17:38, Waldemar Brodkorb wrote:
> > On 07/28/2016 05:57 PM, Waldemar Brodkorb wrote:
> > >It is self compiled toolchain using OpenADK. I double checked now
> > >with Buildroot and indeed they have a patch:
> > >https://git.busybox.net/buildroot/tree/package/gcc/5.4.0/840-microblaze-enable-dwarf-eh-support.patch
> > >
> > >With this patch gcc 5.4.0 works now as expected.
> > 
> > Oh, this microblaze port seems to be quite different from the microblaze
> > support in upstream GCC.  The GNU variant is exclusively DWARF-based, I
> > think.
> 
> I am afraid you are wrong here. Look at gcc git, you will find
> #define TARGET_EXCEPT_UNWIND_INFO  sjlj_except_unwind_info
> in gcc/common/config/microblaze/microblaze-common.c
>  
> I am curious how runtime testing for GNU libc microblaze is done.
> The patch from buildroot allows to build DWARF-based exception
> handling.
> 
> best regards
>  Waldemar
> 
> https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/common/config/microblaze/microblaze-common.c;h=f369bc58d143ee49f6c46b199fdc122d7252027b;hb=HEAD#l41

in order to compile/link things for microblaze, i still have to manually
hack the makefiles to include the right linkage due to the sjlj symbols.
since i don't care much about microblaze, and the problem seems to be
more with gcc, i haven't bothered looking at it anymore.
-mike
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