Hi,
After a year working only on the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/acme/pahole
I'm proud to announce dwarves 1.7, and without much ado, here
goes a list of changes:
- A CTF decoder based on work done by David S. Miller
CTF stands for Compact C Type Format, a more compact debugging
information found in the Solaris world.
- Handle DW_TAG_class_type, that is basically the same as
DW_TAG_structure_type.
- Add support for showing classes with a prefix: --prefix_filter/-y
Contributed by Dave Rigby
- Add support to DW_TAG_ptr_to_member_type, e.g.:
- class QSize findSize(const classQGridLayoutPriv *, <ERROR>,
+ class QSize findSize(const classQGridLayoutPriv *, int QLayoutStruct::*,
- Handle typedef definitions in functions
- Print the number of members in a struct/class
- Handle the empty base optimization trick (Zero sized C++ class)
- Thanks to Dennis Lubert for mentioning this construct, now
lots of "BRAIN FART ALERT!" are gone
- codiff detect changes in the prototype even when function size doesn't change
[acme@doppio pahole]$ codiff -V examples/tag-v6 examples/tag
tag.c:
| +0 # 42 -> 42, prototype: int (struct tag *self, int bar) ->
unsigned int (struct tag *self, int bar)
1 function changed, diff: +0
- pfunct: Implement --expand_types
So that one can get an skeleton from where a function can be
reimplemented, or a probe can be written to attach to a tracepoint.
Right now it will only expand the types for
struct/union/typedef/enumeration types, but it is a good start.
$ pfunct --expand_types --function inet6_ioctl ipv6.ko > a.c
$ echo "int main(void) { return 0; }" >> a.c
$ gcc -Wall -g a.c -o a
$ grep ^#include a.c
$
No errors, no includes.
- Reduce memory consumption by using a strings table that avoids duplication in
multi object files such as vmlinux
- Speed up struct search by name
- Several minor bug fixes and infrastructure improvements.
- Initial man page for pahole
The tarball is at http://fedorapeople.org/~acme/dwarves/.
Please report problems to this list.
- Arnaldo
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