GNU bug report logs - #23529
Request for fixing randomize_va_space build issues

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Package: emacs;

Reported by: Philippe Vaucher <philippe.vaucher <at> gmail.com>

Date: Fri, 13 May 2016 12:20:02 UTC

Severity: important

Tags: fixed

Merged with 13964

Found in version 24.3

Fixed in version 27.1

Done: Stefan Kangas <stefan <at> marxist.se>

Bug is archived. No further changes may be made.

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: p.stephani2 <at> gmail.com, philippe.vaucher <at> gmail.com, 23529 <at> debbugs.gnu.org
Subject: bug#23529: Request for fixing randomize_va_space build issues
Date: Fri, 9 Sep 2016 00:10:22 -0700

Eli Zaretskii wrote:

> I guess you mean the 'previous' and 'next' pointers?

I mean all the pointers in the data. There are more than just 'previous' and 
'next'. Most Lisp objects are tagged pointers, and data contains them.

> Emacs doesn't assume LSB representation when built with wide
> ints.

True, I should have said that the representation is always a pointer plus a 
constant offset, which is true even with wide ints. (It didn't used to be true, 
but those days are long gone.)

> your proposed method is required to "serialize" the dumped data as C
> code.

Sure, but that's true of any dumping method. The advantage of dumping to C code 
is that the compiler and linker will deserialize it for you.
This bug report was last modified 5 years and 311 days ago.

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