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Author SHA1 Message Date
Arnaldo Carvalho de Melo 2de67fcaf4 [PAHOLE]: Implement type expansion 
What is in a struct...

[acme@filo pahole]$ pahole net/ipv6/tcp_ipv6.o delayed_work
/* <2bc9> /home/acme/git/linux-2.6/include/linux/workqueue.h:37 */
struct delayed_work {
        struct work_struct         work;                 /*     0    16 */
        struct timer_list          timer;                /*    16    24 */
}; /* size: 40, cachelines: 1 */
   /* last cacheline: 40 bytes */
[acme@filo pahole]$

Oh, but what if we want to unfold all the structs?

lo pahole]$ pahole --expand_types /home/acme/git/OUTPUT/qemu/linux-2.6/net/ipv6/tcp_ipv6.o delayed_work
/* <2bc9> /home/acme/git/linux-2.6/include/linux/workqueue.h:37 */
struct delayed_work {
        struct work_struct {
                atomic_long_t      data;                 /*   0   4 */
                struct list_head {
                        struct list_head * next;         /*   0   4 */
                        struct list_head * prev;         /*   4   4 */
                } entry;				 /*   4   8 */
                work_func_t        func;                 /*  12   4 */
        } work;						 /*   0  16 */
        struct timer_list {
                struct list_head {
                        struct list_head * next;         /*   0   4 */
                        struct list_head * prev;         /*   4   4 */
                } entry; /*     0     8 */
                long unsigned int  expires;              /*   8   4 */
                void               (*function)(long unsigned int); /*    12     4 */
                long unsigned int  data;                 /*  16   4 */
                struct tvec_t_base_s * base;             /*  20   4 */
        } timer; /*    16    24 */
}; /* size: 40, cachelines: 1 */
   /* last cacheline: 40 bytes */
[acme@filo pahole]$

Quick hack, as we already had all the needed infrastructure due to anonymous struct
printing inside structs/unions, now for the curious, if you have the kernel-debuginfo
package installed in your FC6 machine:

[acme@filo pahole]$ pahole --expand_types /usr/lib/debug/lib/modules/2.6.19-1.2895.fc6/kernel/net/ipv6/ipv6.ko.debug tcp6_sock

Try struct task_struct too 8-)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2007-01-29 13:12:23 -02:00
Arnaldo Carvalho de Melo b5baabcd16 [ALL]: Fixup warnings 
Using export CFLAGS="-Wall -Wfatal-errors -Wformat=2 -Wsequence-point -Wextra
-Wno-parentheses -g", suggested by Davi Arnault, amazing how cruft piles up
when one is not looking ;)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2007-01-29 10:42:03 -02:00
Davi Arnaut c9bd654d3b [PAHOLE]: Handle anonymous structs 
Some are just typedefs, others are inside structs and in some cases its
useful to see the statistics for them, so add two new cmd line options:

-a, --anon_include        include anonymous classes\
-A, --nested_anon_include include nested (inside other structs) anonymous classes

Commiter note: I've reworked several aspects of the patch, but mostly to
give better names for the new find_first_typedef_of_type function, adding
a clarifying comment and introducing --nested_anon_include so that we
can select just the typedef'ed anonymous structs.

Damn, I had commited just dwarves.c, here is the dwarves.h and pahole.c bits.

Signed-off-by: Davi Arnaut <davi@haxent.com.br>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2007-01-28 11:07:22 -02:00
Arnaldo Carvalho de Melo 812406d9fb [LIB]: Use sysconf to get the L1 cacheline size 
As suggested by Ulrich Drepper.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
 2007-01-18 21:41:25 -02:00
Arnaldo Carvalho de Melo 46884e3d4f [LIB]: Make the default cacheline be 64 
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
 2007-01-18 21:18:44 -02:00
Arnaldo Carvalho de Melo 1750958111 [LIB]: Separate emission of definitions in a type from the emission of the type itself 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2007-01-16 12:11:35 -02:00
Arnaldo Carvalho de Melo 3a9ceb41ee [LIB]: Rename cus__emit_struct_definitions to cus__emit_type_definitions 
To make it handle unions too.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2007-01-13 14:19:34 -02:00
Arnaldo Carvalho de Melo 7e57db18d7 [LIB]: Add support for DW_AT_specification in DW_TAG_subprogram 
C++ feature, we have to look for the id, then abstract_origin and then
specification.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2007-01-13 11:37:41 -02:00
Arnaldo Carvalho de Melo f6718f5721 [LIB]: Export lexblock__print 
tag__print on a DW_TAG_subprogram tag prints just the function prototype,
without the ending ";\", so if a user wants to print the whole function its
just a matter of calling tag__print + lexblock__(tag__function(tag), cu,
indent).

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2007-01-13 10:57:19 -02:00
Arnaldo Carvalho de Melo 16c0586602 [LIB]: Make all callers of function__print use tag__print instead 
And since there are no external users now, just unexport it, ditto
for tag__print_decl_info.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2007-01-12 16:25:20 -02:00
Arnaldo Carvalho de Melo df1832ac4f [LIB]: Introduce tag__print_decl_info 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2007-01-12 16:11:37 -02:00
Arnaldo Carvalho de Melo 3fe4f09a27 [LIB]: Move the stats printing bits out of function__print 
Moving them to a new function, function__print_stats.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2007-01-12 16:00:07 -02:00
Arnaldo Carvalho de Melo d385563a53 [LIB]: Make the function methods return and receive a struct tag 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2007-01-12 15:47:26 -02:00
Arnaldo Carvalho de Melo 30b6aa2f73 [LIB]: Rename classes.[ch] to dwarves.[ch] 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2007-01-11 16:07:05 -02:00