* codiff new features
@ 2009-03-03 14:09 Arnaldo Carvalho de Melo
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From: Arnaldo Carvalho de Melo @ 2009-03-03 14:09 UTC (permalink / raw)
To: Ilpo Järvinen; +Cc: dwarves-u79uwXL29TY76Z2rM5mHXA
Hi,
This is just to let you know about some new features in codiff:
commit dc5592b84424025171bf6b12d4660de5cfef76a3
Author: Arnaldo Carvalho de Melo <acme-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Date: Tue Mar 3 10:55:25 2009 -0300
codiff: Detect changes in padding and the number of holes/bit_holes
$ codiff -V /tmp/pahole.old build/pahole
/home/acme/git/pahole/pahole.c:
struct tag | +0
padding: +2
refcnt
removed: uint16_t /* 56( 0) 2( 0) */
recursivity_level
from: uint16_t /* 58( 0) 2( 0) */
to: uint16_t /* 56( 0) 2(15) */
visited
added: uint16_t /* 56(15) 2( 1) */
1 struct changed
Size is the same, but now we have padding (2 bytes).
commit 585075767171d52240457eaed58e3d1eb4823f7d
Author: Arnaldo Carvalho de Melo <acme-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Date: Tue Mar 3 10:31:14 2009 -0300
codiff: improve detection removal and addition of members in structs
Consider this case:
$ codiff -V /tmp/pahole.old build/pahole
/home/acme/git/pahole/pahole.c:
struct tag | +0
refcnt
removed: uint16_t /* 56( 0) 2( 0) */
recursivity_level
from: uint16_t /* 58( 0) 2( 0) */
to: uint16_t /* 56( 0) 2(15) */
used
added: uint16_t /* 56(15) 2( 1) */
1 struct changed
The number of members is the same and so is the size of the struct, but
'refcnt' was removed (in fact renamed to used) and 'used' was added.
- Arnaldo
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