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RE: [RFA] Compact EH Patch
- From: "Moore, Catherine" <Catherine_Moore at mentor dot com>
- To: Richard Henderson <rth at redhat dot com>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Cc: "jason at redhat dot com" <jason at redhat dot com>, Matthew Fortune <Matthew dot Fortune at imgtec dot com>
- Date: Tue, 1 Dec 2015 21:31:58 +0000
- Subject: RE: [RFA] Compact EH Patch
- Authentication-results: sourceware.org; auth=none
- References: <FD3DCEAC5B03E9408544A1E416F112420192C8DEFB at NA-MBX-04 dot mgc dot mentorg dot com> <55FC6505 dot 8040203 at redhat dot com> <FD3DCEAC5B03E9408544A1E416F112420192CC82F4 at NA-MBX-04 dot mgc dot mentorg dot com>
Ping?
> -----Original Message-----
> From: gcc-patches-owner@gcc.gnu.org [mailto:gcc-patches-
> owner@gcc.gnu.org] On Behalf Of Moore, Catherine
> Sent: Wednesday, November 25, 2015 11:58 AM
> To: Richard Henderson; gcc-patches@gcc.gnu.org
> Cc: jason@redhat.com; Matthew Fortune
> Subject: RE: [RFA] Compact EH Patch
>
>
>
> > -----Original Message-----
> > From: Richard Henderson [mailto:rth@redhat.com]
> > Sent: Friday, September 18, 2015 3:25 PM
> > To: Moore, Catherine; gcc-patches@gcc.gnu.org
> > Cc: jason@redhat.com; Matthew Fortune
> > Subject: Re: [RFA] Compact EH Patch
> >
> > > Index: libgcc/libgcc-std.ver.in
> > >
> >
> ==========================================================
> > =========
> > > --- libgcc/libgcc-std.ver.in (revision 226409)
> > > +++ libgcc/libgcc-std.ver.in (working copy)
> > > @@ -1918,6 +1918,7 @@ GCC_4.6.0 {
> > > __morestack_current_segment
> > > __morestack_initial_sp
> > > __splitstack_find
> > > + _Unwind_GetEhEncoding
> > > }
> > >
> > > %inherit GCC_4.7.0 GCC_4.6.0
> > > @@ -1938,3 +1939,8 @@ GCC_4.7.0 {
> > > %inherit GCC_4.8.0 GCC_4.7.0
> > > GCC_4.8.0 {
> > > }
> > > +
> > > +%inherit GCC_4.8.0 GCC_4.7.0
> > > +GCC_4.8.0 {
> > > + __register_frame_info_header_bases
> > > +}
> >
> > You can't push new symbols into old versions. These have to go into
> > the version for the current gcc.
> >
> > > Index: libstdc++-v3/config/abi/pre/gnu.ver
> > >
> >
> ==========================================================
> > =========
> > > --- libstdc++-v3/config/abi/pre/gnu.ver (revision 226409)
> > > +++ libstdc++-v3/config/abi/pre/gnu.ver (working copy)
> > > @@ -1909,6 +1909,7 @@ CXXABI_1.3 {
> > > __gxx_personality_v0;
> > > __gxx_personality_sj0;
> > > __gxx_personality_seh0;
> > > + __gnu_compact_pr2;
> > > __dynamic_cast;
> > >
> > > # *_type_info classes, ctor and dtor
> > > Index: libstdc++-v3/config/abi/pre/gnu-versioned-namespace.ver
> > >
> >
> ==========================================================
> > =========
> > > --- libstdc++-v3/config/abi/pre/gnu-versioned-namespace.ver
> > (revision 226409)
> > > +++ libstdc++-v3/config/abi/pre/gnu-versioned-namespace.ver
> > (working copy)
> > > @@ -200,6 +200,7 @@ CXXABI_2.0 {
> > > __cxa_vec_new;
> > > __gxx_personality_v0;
> > > __gxx_personality_sj0;
> > > + __gnu_compact_pr2;
> > > __dynamic_cast;
> > >
> > > # std::exception_ptr
> >
> > Likewise.
> >
> I'm getting ready to post the updates to this patch -- hopefully, I can still get it
> in GCC 6.0.
> I'm not sure how to tell what the current CXXABI is for these two files.
> Should it be CXXABI_2.0 for both of these?
> Thanks,
> Catherine