[PATCH] Fix gdb.dwarf2/clztest.exp with Clang

[Gary Benson]

Andreas Schwab wrote:
> On Nov 02 2020, Gary Benson via Gdb-patches wrote:
> > diff --git a/gdb/testsuite/gdb.dwarf2/clztest.S b/gdb/testsuite/gdb.dwarf2/clztest.S
> > index a904fee..08a8bac 100644
> > --- a/gdb/testsuite/gdb.dwarf2/clztest.S
> > +++ b/gdb/testsuite/gdb.dwarf2/clztest.S
> > @@ -22,6 +22,12 @@
> >  
> >  */
> >  
> > +#if defined(__clang__)
> > +# define EH_FRAME_SH_FLAGS "a"
> > +#else
> > +# define EH_FRAME_SH_FLAGS "aw"
> > +#endif
> > +
> >  	.file	"clztest.c"
> >  	.text
> >  .Ltext0:
> > @@ -178,7 +184,7 @@ _start:
> >  .LEFDE4:
> >  #NO_APP
> >  #APP
> > -	.section	.eh_frame,"aw",@progbits
> > +	.section	.eh_frame,EH_FRAME_SH_FLAGS,@progbits
> 
> Shouldn't .eh_frame always be read-only?

I don't know.

> It certainly is when compiled with gcc.

A comment in that .S file indicated it was originally generated
using GCC (via gcc -dA -S -g -O2 clztest.c -o clztest.S) but that
was 2011, so maybe things changed.

I'm happy to change the test to have .eh_frame read-only for all
compilers, if that seems more correct.

Thanks,
Gary

-- 
Gary Benson - he / him / his
Principal Software Engineer, Red Hat