Re: Question about adding a new option vs extending an existing one

Zander Work via Gdb <[email protected]> Thu, 30 Apr 2026 15:46:47 +0000
Newsgroups gmane.comp.gdb.devel
Message-ID <-tT8gWCj1g1GjvJRl43XWZw617t_INK4DMPtVHfOvkCNNIFLeYs2Fylz6xQLXmVXqo69m-h3iMq4yFB9WDuZCrQKeVqtRDlOGO1lAbt9AXc=@zanderwork.com>
Cool, that makes sense! Patch (hopefully) coming soon for this.

-Zander

On Wednesday, April 29th, 2026 at 10:40 AM, Guinevere Larsen <guinevere@red=
hat.com> wrote:

> On 4/29/26 9:45 AM, Zander Work via Gdb wrote:
> > Hello,
> >
> > I'm interested in writing a patch for GDB which allows a user to change=
 the radix used for displaying function offsets in instruction listings (ex=
ample below), right now it only uses decimal, and doesn't respect the exist=
ing radix settings (either `radix` or `output-radix`).
> >
> > I want to contribute a patch that allows the user to change the radix u=
sed for displaying these offsets, but I'm not sure if it would be best to r=
e-use the value of `output-radix`, or to define a new setting (eg, `offset-=
radix` maybe).
> >
> > Additionally, if a new option should be added, would it be appropriate =
to have `set radix` also set that new one (I would assume yes).
> >
> > Does anyone have any opinions on this? My personal feeling is that reus=
ing `output-radix` would be best.
>=20
> In this case, based on how "set radix" is described in the manual, I
> think this is actually a bug and the offset should already be using the
> specified (output-)radix, so I guess I am with you on the opinion, but
> from the POV that it should already be happening and you're fixing a
> bug, not that it is a feature being extended
>=20
> --
> Cheers,
> Guinevere Larsen
> It/she
>=20
> >
> > ---
> >
> > (gdb) set radix 16
> > Input and output radices now set to decimal 16, hex 10, octal 20.
> > (gdb) x/8i $rip
> > =3D> 0x7ffff7fe0c00 <_start>:     mov    %rsp,%rdi
> >     0x7ffff7fe0c03 <_start+3>:   call   0x7ffff7fe1750 <_dl_start>
> >     0x7ffff7fe0c08 <_dl_start_user>:     mov    %rax,%r12
> >     0x7ffff7fe0c0b <_dl_start_user+3>:   mov    %rsp,%r13
> >     0x7ffff7fe0c0e <_dl_start_user+6>:   mov    0x1cb9c(%rip),%edx     =
   # 0x7ffff7ffd7b0 <_rtld_global+1968>
> >     0x7ffff7fe0c14 <_dl_start_user+12>:  test   $0x2,%edx
> >     0x7ffff7fe0c1a <_dl_start_user+18>:  je     0x7ffff7fe0c2d <_dl_sta=
rt_user+37>
> >     0x7ffff7fe0c1c <_dl_start_user+20>:  mov    $0x1,%esi
> >                                    ^^ i am referring to these offsets
> >
> >
>=20
>