[cfe-dev] DWARFv5 by default in clang?

[David Blaikie via cfe-dev]

Hey Stephen,

I see you added a test to ensure Android uses DWARFv4 here:
https://reviews.llvm.org/D60238

Is that still the case? I can figure out how to ensure that's the case as
we transition the default to DWARFv5 for platforms that haven't opted out.

On Tue, Nov 30, 2021 at 9:28 AM Khem Raj <raj.khem at gmail.com> wrote:

> On Tue, Nov 30, 2021 at 9:10 AM via cfe-dev <cfe-dev at lists.llvm.org>
> wrote:
> >
> > > Generic_GCC has many (indirect) derived classes
> > > (FreeBSD/OpenBSD/Solaris) which override the base
> > > GetDefaultDwarfVersion().
> > > The Generic_GCC change will affect
> > > Haiku/Hurd/Linux/NetBSD/PS4CPU/etc. I have CC'd these folks: if
> > > your platform is not ready for DWARF v5, you can override
> > > GetDefaultDwarfVersion() in your toolchain.
>
> We have been using v5 in yocto with clang13 onwards as well [1] and
> have not seen any blockers.
>
> [1]
> https://github.com/kraj/meta-clang/blob/master/recipes-devtools/clang/clang/0027-clang-Switch-defaults-to-dwarf-5-debug-info-on-Linux.patch
>
> >
> > PS4 updated to set v4 explicitly as of
> >
> https://github.com/llvm/llvm-project/commit/b8e03be88dc87303f7401ea7b9906947ac67a6db
> > --paulr
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>
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