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
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
800429032e
[PFUNCT]: Implement --function_name_len
...
[acme@newtoy net-2.6]$ pfunct --function_name_len vmlinux | sort -k 2 -nr | head -5
attribute_container_add_class_device_adapter: 44
wait_for_completion_interruptible_timeout: 41
sparse_memory_present_with_active_regions: 41
attribute_container_classdev_to_container: 41
percpu_pagelist_fraction_sysctl_handler: 39
[acme@newtoy net-2.6]$
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-11-01 10:42:18 -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
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
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
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
f4cc126c11
Separate finding the holes from printing the class, so that we are able to
...
print just the structs with holes, that indeed is what we do now if no class
name is passed.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-28 18:10:47 -03:00
3593eb45a6
Move the class and class_member structs to a new header file,
...
classes.h.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-28 13:45:59 -03:00
Arnaldo Carvalho de Melo