[cfe-dev] Debuginfo for alias variable /func is not emited.

via cfe-dev cfe-dev at lists.llvm.org
Tue Apr 20 10:51:03 PDT 2021


> Sure, looks like an omission/bug/missing debug info to me. I don't see
> any tests in clang for debug info IR emission that include "alias", so
> Iguess it's not implemented at all. I vaguely thought it was, but
> probably misremembering.

I can't get newname even with a use, or -fstandalone-debug.

Umesh, if you're willing to generate a patch, that would be wonderful.
Or if you can't, please file a bug.
Thanks,
--paulr

> 
> On Tue, Apr 20, 2021 at 6:48 AM Umesh Kalappa via cfe-dev
> <cfe-dev at lists.llvm.org> wrote:
> >
> > Hi All ,
> >
> > We have a stitution with clang ,where the debuginfo for alias variable
> > /func is not emitted i.e
> >
> > $cat test.c
> > int oldname = 1;
> > extern int newname __attribute__((alias("oldname")));
> > $clang -g -O0 test.c
> > $gdb a.out
> > (gdb) pt oldname
> > type = int
> > (gdb) pt newname
> > type = <data variable, no debug info>
> >
> > and we can fix the same ,by adding the DIGlobalVariable for alias too .
> >
> > Before we go-ahead and make the changes ,we would like experts to
> > confirm these gaps and their comments on the same .
> >
> > Thank you
> > ~Umesh
> > _______________________________________________
> > cfe-dev mailing list
> > cfe-dev at lists.llvm.org
> > https://urldefense.com/v3/__https://lists.llvm.org/cgi-
> bin/mailman/listinfo/cfe-dev__;!!JmoZiZGBv3RvKRSx!pxXu4Tfnp4BMBKoTyZ6CO-
> ob63HTGRA28O37lmhfVnBjCmlifoL0o9S42AfbAP4omg$


More information about the cfe-dev mailing list