27 Feb
2017
27 Feb
'17
9:13 p.m.
Joerg Schilling <schily(a)schily.net> wrote:
BTW: undump(1) has been announced on a Sun User Group in 1987, but the
next year, SunOS-4.0 came out and made things much harder to implement.
I did never see an updated undump(1) source that would be able to deal with
SunOS-4.0 and it's shared libraries. Does it exist?
Emacs uses a thing called "unexec", or rather several things, one for each
OS, with varying complexity and fearsomeness.
The SunOS one was deleted in 2008:
http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=2a5cb2584f9ca171ad431…
The Solaris one is the easiest, because dldump() is part of the OS:
http://git.savannah.gnu.org/cgit/emacs.git/tree/src/unexsol.c?id=4daca38d5c…
Of course, the most popular systems (generic ELF, Windows, and Mac OS)
have the most complicated implementations of unexec.
Tony.
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