From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Buettner To: Daniel Jacobowitz , Kevin Buettner Cc: Elena Zannoni , gdb-patches@sources.redhat.com Subject: Re: [RFA] W.I.P. AltiVec ppc registers support. Date: Thu, 29 Nov 2001 15:47:00 -0000 Message-ID: <1011129234527.ZM19890@ocotillo.lan> References: <15365.39495.801289.497931@krustylu.cygnus.com> <1011129183830.ZM18856@ocotillo.lan> <15366.44991.616576.411278@krustylu.cygnus.com> <1011129222000.ZM19585@ocotillo.lan> <20011129174621.B15429@nevyn.them.org> <1011129231229.ZM19791@ocotillo.lan> <20011129183732.A17705@nevyn.them.org> X-SW-Source: 2001-11/msg00585.html Message-ID: <20011129154700.9766SZHqa6t59ojFudwBZbvsVFbH05d8uDLR8sdh9iE@z> On Nov 29, 6:37pm, Daniel Jacobowitz wrote: > On Thu, Nov 29, 2001 at 04:12:29PM -0700, Kevin Buettner wrote: > > > My still-unsubmitted cross-core patches for PowerPC remove > > > core-regset.o also, and very unpleasantly turn ppc-linux-nat.c into a > > > target-dependant rather than native-dependant file, so that we can grub > > > through the gregsets by hand. If you've got a better idea I'd love to > > > hear it :) It will be made somewhat easier by the destruction of > > > regmap[]. > > > > I haven't seen your patches, but I imagine you have a table of > > constants or some such that represent offsets and sizes of members in > > the regsets? (I.e, something similar to what I did for SVR4 shared > > library offsets.) If that's the approach, then the only real problem I > > have with it is accurately generating (and maintaining) the tables. > > The SVR4 shared library tables are compact enough to easily generate > > by hand. The regset data is quite a lot larger and I would think > > you'd want to generate this data through more automatic means. (I.e, > > via a program that you'd compile and and then run on the target.) > > Nothing that abstracted. I copy the necessary type definitions and > constants from target headers; they are "relatively" guaranteed never > to change. It's a mess. How does the "cross" part of it work then? Won't the sizes of the fundamental types, struct alignment, etc. change depending upon which host you compile it on?