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Re: Status and rationale for toplevel bootstrap (was Re: Example of debugging GCC with toplevel bootstrap)
- From: Ian Lance Taylor <ian at airs dot com>
- To: DJ Delorie <dj at redhat dot com>
- Cc: kenner at vlsi1 dot ultra dot nyu dot edu, paul at codesourcery dot com, gcc at gcc dot gnu dot org
- Date: 16 Jan 2006 11:34:18 -0800
- Subject: Re: Status and rationale for toplevel bootstrap (was Re: Example of debugging GCC with toplevel bootstrap)
- References: <10601161743.AA12121@vlsi1.ultra.nyu.edu> <200601161818.k0GII1BF031801@greed.delorie.com>
DJ Delorie <dj@redhat.com> writes:
> Two copies of gcc, both configured for the same target and built from
> the same sources, should produce identical objects regardless of how
> they are built or what they run on.
But note that we do not satisfy this today. Specifically if you build
gcc on two different hosts which have different definitions for
HOST_BITS_PER_LONGLONG, then even if you configure for the same
targets and build from the same sources, you will not get identical
objects.
Ian