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Re: Time to drop the pre-dump phase in the build?
From: |
Stefan Monnier |
Subject: |
Re: Time to drop the pre-dump phase in the build? |
Date: |
Fri, 10 Jan 2014 21:58:55 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) |
>>> That's why the XEmacs portable dumper is better than the current Emacs
>>> setup.
>> Right, a portable dumper would be nice to have.
>> Tho I don't know enough of the details to know what are the downsides
>> (e.g. does it require relocation? If so that means the file can't just
>> be mmap'd read-only and shared between processes, right?).
> If I'm reading the XEmacs Internals documentation properly, pdump *may*
> require relocation, but not if the offset at which the dumpfile is loaded
> happens to match the offset at which it's loaded. That's about as good as
> you can ask for.
Which begs the question: when is it the case that the offset matches?
Can we assume it to be the common case?
Stefan