Return to APOLLO CVS log

Up to [CSRG BSD Unix] / 43BSDReno / contrib / emacs-18.55 / etc

Annotation of 43BSDReno/contrib/emacs-18.55/etc/APOLLO, revision 1.1

1.1     ! root        1: The Apollo has a bizarre operating system which does not permit
        !             2: Emacs to be dumped with preloaded pure Lisp code.  Therefore, each
        !             3: time you start Emacs on this system, the standard Lisp code is loaded
        !             4: into it.  Expect it to take a long time.  You can prevent loading of
        !             5: the standard Lisp code by specifying the -nl switch.  It must
        !             6: come at the beginning of the command line; only the -t and -batch
        !             7: switches may come before it.
        !             8: 
        !             9: You must use m-apollo.h in the config.h file, together with
        !            10: s-bsd4.2.h.
        !            11: 
        !            12: There is one remaining problem on the Apollo.  You must replace
        !            13: the CPP line in src/Makefile with "CPP = /usr/lib/cpp".
        !            14: The C preprocessor lives there rather than in /lib/cpp because the
        !            15: Aegis OS uses the /lib directory as the repository for shared libraries.
        !            16: 
        !            17: 
        !            18: Here is a design for a method of dumping and reloading the relevant
        !            19: necessary impure areas of Emacs.
        !            20: 
        !            21: On dumping, you need to dump only the array `pure' plus the
        !            22: locations that contain values of forwarded Lisp variables or that are
        !            23: protected for garbage collection.  The former can be found by a
        !            24: garbage- collection-like technique, and the latter are in the
        !            25: staticprolist vector (see alloc.c for both things).
        !            26: 
        !            27: Reloading would work in an Emacs that has just been started; except
        !            28: when a switch is specified to inhibit this, it would read the dump
        !            29: file and set all the appropriate locations.  The data loaded must be
        !            30: relocated, but that's not hard.  Those locations that are of type
        !            31: Lisp_Object can be found by a technique like garbage-collection, and
        !            32: those of them that point to storage can be relocated.  The other data
        !            33: read from the file will not need to be relocated.
        !            34: 
        !            35: The switch to inhibit loading the data base would be used when it
        !            36: is time to dump a new data base.
        !            37: 
        !            38: This would take a few seconds, which is much faster than loading
        !            39: the Lisp code of Emacs from scratch.

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.