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Re: Building Emacs overflowed pure space
From: |
YAMAMOTO Mitsuharu |
Subject: |
Re: Building Emacs overflowed pure space |
Date: |
Wed, 19 Jul 2006 18:22:44 +0900 |
User-agent: |
Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.6 (Marutamachi) APEL/10.6 Emacs/22.0.50 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI) |
>>>>> On Wed, 19 Jul 2006 02:04:54 -0400, Richard Stallman <address@hidden>
>>>>> said:
> I don't quite follow. Why does the redefinition made by cl.el alter
> the size of the expansion of these macro calls?
The major difference seems to come from the length of the uninterned
symbol name that is allocated for each expanded `dolist'.
static POINTER_TYPE *
pure_alloc (size, type)
size_t size;
int type;
{
POINTER_TYPE *result;
#ifdef USE_LSB_TAG
size_t alignment = (1 << GCTYPEBITS);
#else
size_t alignment = sizeof (EMACS_INT);
The length of the name of '--dolist-temp-- (in subr.el) is 15, and it
takes 2 units in 8(== (1 << GCTYPEBITS))-byte block including the
terminating nul char. On the other hand, the name of
'--cl-dolist-temp-- takes 3 units.
Here's the result of some experiments:
Dumped with dolist in subr.el: 1209808 bytes used
dolist in cl.el: >1211000 bytes used (overflow)
dolist in cl.el with the modification
'--cl-dolist-temp-- -> '--dolist-temp-- :
1209832 bytes used
YAMAMOTO Mitsuharu
address@hidden
- Re: Building Emacs overflowed pure space, (continued)
- Re: Building Emacs overflowed pure space, David Kastrup, 2006/07/25
- Re: Building Emacs overflowed pure space, Richard Stallman, 2006/07/23
- Re: Building Emacs overflowed pure space, Luc Teirlinck, 2006/07/18
- Re: Building Emacs overflowed pure space, Chong Yidong, 2006/07/18
- Re: Building Emacs overflowed pure space, Luc Teirlinck, 2006/07/18
- Re: Building Emacs overflowed pure space, Luc Teirlinck, 2006/07/18
- Re: Building Emacs overflowed pure space, Luc Teirlinck, 2006/07/18
- Re: Building Emacs overflowed pure space, Eli Zaretskii, 2006/07/18
- Re: Building Emacs overflowed pure space, Luc Teirlinck, 2006/07/18
- Re: Building Emacs overflowed pure space, Richard Stallman, 2006/07/19
- Re: Building Emacs overflowed pure space,
YAMAMOTO Mitsuharu <=
- Re: Building Emacs overflowed pure space, YAMAMOTO Mitsuharu, 2006/07/19
- Re: Building Emacs overflowed pure space, Stefan Monnier, 2006/07/19
- Re: Building Emacs overflowed pure space, Kim F. Storm, 2006/07/19
- Re: Building Emacs overflowed pure space, Stefan Monnier, 2006/07/20
- Re: Building Emacs overflowed pure space, YAMAMOTO Mitsuharu, 2006/07/19
- Re: Building Emacs overflowed pure space, Richard Stallman, 2006/07/19
- Re: Building Emacs overflowed pure space, Richard Stallman, 2006/07/19
- Re: Building Emacs overflowed pure space, Stefan Monnier, 2006/07/20
- Re: Building Emacs overflowed pure space, Kim F. Storm, 2006/07/20
- Re: Building Emacs overflowed pure space, Stefan Monnier, 2006/07/20