a42afe1acf
[CLASSES]: Add support for DW_TAG_inlined_subroutine
...
Output of pfunct using this information (all for a make allyesconfig build):
Top 5 functions by size of inlined functions in net/ipv4:
[acme@newtoy guinea_pig-2.6]$ pfunct -I net/ipv4/built-in.o | sort -k3 -nr | head -5
ip_route_input: 19 7086
tcp_ack: 33 6415
do_ip_vs_set_ctl: 23 4193
q931_help: 8 3822
ip_defrag: 19 3318
[acme@newtoy guinea_pig-2.6]$
And by number of inline expansions:
[acme@newtoy guinea_pig-2.6]$ pfunct -I net/ipv4/built-in.o | sort -k2 -nr | head -5
dump_packet: 35 905
tcp_v4_rcv: 34 1773
tcp_recvmsg: 34 928
tcp_ack: 33 6415
tcp_rcv_established: 31 1195
[acme@newtoy guinea_pig-2.6]$
And the list of expansions on a specific function:
[acme@newtoy guinea_pig-2.6]$ pfunct -i net/ipv4/built-in.o tcp_v4_rcv
/* net/ipv4/tcp_ipv4.c:1054 */
int tcp_v4_rcv(struct sk_buff * skb);
/* size: 2189, variables: 8, goto labels: 6, inline expansions: 34 (1773 bytes) */
/* inline expansions in tcp_v4_rcv:
current_thread_info: 8
pskb_may_pull: 36
pskb_may_pull: 29
tcp_v4_checksum_init: 139
__fswab32: 2
__fswab32: 2
inet_iif: 12
__inet_lookup: 292
__fswab16: 20
inet_ehashfn: 25
inet_ehash_bucket: 18
prefetch: 4
prefetch: 4
prefetch: 4
sock_hold: 4
xfrm4_policy_check: 59
nf_reset: 66
sk_filter: 135
__skb_trim: 20
get_softnet_dma: 68
tcp_prequeue: 257
sk_add_backlog: 40
sock_put: 27
xfrm4_policy_check: 46
tcp_checksum_complete: 29
current_thread_info: 8
sock_put: 20
xfrm4_policy_check: 50
tcp_checksum_complete: 29
current_thread_info: 8
inet_iif: 9
inet_lookup_listener: 36
inet_twsk_put: 114
tcp_v4_timewait_ack: 153
*/
[acme@newtoy guinea_pig-2.6]$
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-11-03 12:41:19 -03:00
7896f67c95
[CLASSES]: Initial support for DW_TAG_lexical_block
...
For now we just discard it so that all the variables in a function can be
accounted, but the right thing, as said in the comment added in this cset is to
have a list of lexical blocks, each with a list of its variables so that we can
find the biggest stack usage in functions.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-11-02 15:53:39 -03:00
97385598a6
[CLASSES]: Use strdup for the ->name members
...
Reducing the memory footprint, but more has to be done, such as to take
advantage of the strings table when handling indirect strings.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-11-02 13:48:35 -03:00
09bb5df8aa
[PFUNCT]: Implement --nr_parameters
...
[acme@newtoy net-2.6]$ pfunct --nr_parameters vmlinux | sort -k 2 -nr | head -5
__ide_add_setting: 13
ide_add_setting: 12
fib_dump_info: 12
__blockdev_direct_IO: 10
vma_merge: 9
[acme@newtoy net-2.6]$
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-11-01 10:34:42 -03:00
eff5348081
Handle the DW_TAG_variable and DW_TAG_label tags, now we can do:
...
[acme@newtoy net-2.6]$ pfunct --variables vmlinux | sort -k 2 -nr | head -5
do_task_stat: 29
load_elf_binary: 28
elf_core_dump: 23
ext3_new_blocks: 21
sys_unshare: 19
[acme@newtoy net-2.6]$
And:
[acme@newtoy net-2.6]$ pfunct --goto_labels vmlinux | sort -k 2 -nr | head -5
copy_process: 16
sys_unshare: 10
device_add: 9
class_device_add: 8
tcp_sendmsg: 7
[acme@newtoy net-2.6]$
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-11-01 10:18:01 -03:00
5aaca80de6
[CLASSES]: Rework the find_by routines
...
So that we can find all the cus for some specific class
(cus__find_class_by_name), or traverse all the CUs (cus__for_each_cu),
etc.
Now we don't look at just the first CU in multi-CU files (vmlinux, etc).
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-31 17:23:16 -03:00
0ca9826e36
Introduce struct cu, i.e. a per compilation unit struct that holds the list of
...
types for each CU, for now when working on multi-CU files (vmlinux, any binary
with more than one object file linked) we look only at the first CU when
looking for a specific class or function name, this will be fixed in the
upcoming csets, but doesn't affect the case when we don't specify a class or
function name, where all the CU's are traversed.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-31 16:12:42 -03:00
19189046aa
Use : as separator for decl_file:decl_line, suggested by martin
...
on irc 8)
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-30 15:24:32 -03:00
042c51dc1f
Support DW_AT_low_pc and DW_AT_high_pc, now pfunct is able to do this:
...
[acme@newtoy net-2.6]$ pfunct kernel/sched.o schedule
/* /pub/scm/linux/kernel/git/acme/net-2.6/kernel/sched.c 3317 */
void schedule(void);
/* size: 1492 */
Cute, huh? :-)
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-30 14:22:39 -03:00
f204c370ed
Move the attr functions that are needed only by class__new or class_member__new
...
to where they are needed.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-30 13:37:04 -03:00
6b32c8362b
Introduce classes__for_each, that receives an iterator function and a cookie,
...
so that one can traverse all the classes loaded by classes__load.
Also export classes__find_by_id().
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-28 23:55:56 -03:00
67b12e237c
Support DW_AT_inline, that only makes sense on functions, where now we
...
see that the function was indeed inlined:
[acme@newtoy net-2.6]$ pfunct kernel/sched.o task_running
/* /pub/scm/linux/kernel/git/acme/net-2.6/kernel/sched.c 304 */
inline int task_running(struct rq * rq, struct task_struct * p);
[acme@newtoy net-2.6]$
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-28 21:40:35 -03:00
d23a3a6e64
Print the decl file and line at class__print, not at class__print_struct, that
...
way we get it for free for the upcoming types, as class__print_function got
now.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-28 19:13:27 -03:00
d0df41c935
Support DW_TAG_formal_parameter, that gets into the struct class members list,
...
i.e. the list of parameters of a function (DW_TAG_subprogram).
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-28 19:04:40 -03:00
f9ed05bd42
Initial implementation of class__print_function, now to get the list
...
of DW_AT_formal_parameters and then print it.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-28 18:49:27 -03:00
e61005ee82
Only structs have holes, not, for instance, DW_AT_subprogram entries,
...
aka functions.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-28 18:37:38 -03:00
35e87417f9
Move the classes methods out of pahole.c and into classes.c,
...
that will be used by other new dwarves 8)
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-28 18:22:42 -03:00
Arnaldo Carvalho de Melo