OpenE2K/dwarves
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
61 Commits 1 Branch 0 Tags 3.4 MiB
6b82eae556
Commit Graph

61 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Arnaldo Carvalho de Melo
6b82eae556 [PAHOLE]: getopt support 
With some of the options in pfunct, such as:

[acme@newtoy guinea_pig-2.6]$ pahole --sizes kernel/sched.o | sort -k2 -nr | head -5
pglist_data: 3456
task_struct: 2704
rq: 2480
mmu_gather: 2040
zone: 1664
[acme@newtoy guinea_pig-2.6]$

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-11-02 13:47:37 -03:00
Arnaldo Carvalho de Melo
683428ee16 [PFUNCT]: Add missing 'else' 
And update the --help output.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-11-01 18:08:54 -03:00
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
4a6117a912 [PFUNCT]: Introduce --help 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-11-01 10:29:31 -03:00
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
8f1d76d93a [PFUNCT]: Implement --size in pfunct 
[acme@newtoy net-2.6]$ pfunct --size net/ipv4/netfilter/ip_conntrack.ko | sort -k 2 -nr | head -5
tcp_packet: 3349
ip_conntrack_in: 1146
icmp_error: 874
ip_conntrack_expect_related: 804
__ip_conntrack_confirm: 586
[acme@newtoy net-2.6]$

'nuff said :-)

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-30 15:15:09 -03:00
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
3dfd363868 Add getopt support in pfunct, options implemented should be self explaining, 
except for --classes, that asks that all non-inlined functions that receive as
one of its parameter a pointer to the specified class be printed, just the name
if --verbose is not used, or its complete prototype and where it is in the
source code:

[acme@newtoy net-2.6]$ pfunct --verbose --class=inode fs/ext3/built-in.o
/* /pub/scm/linux/kernel/git/acme/net-2.6/fs/ext3/balloc.c 606 */
void ext3_free_blocks(handle_t * handle, struct inode * inode, ext3_fsblk_t block, long unsigned int count);

/* /pub/scm/linux/kernel/git/acme/net-2.6/fs/ext3/balloc.c 1404 */
ext3_fsblk_t ext3_new_blocks(handle_t * handle, struct inode * inode, ext3_fsblk_t goal, long unsigned int * count, int * errp);

/* /pub/scm/linux/kernel/git/acme/net-2.6/fs/ext3/balloc.c 1668 */
ext3_fsblk_t ext3_new_block(handle_t * handle, struct inode * inode, ext3_fsblk_t goal, int * errp);

/* /pub/scm/linux/kernel/git/acme/net-2.6/fs/ext3/balloc.c 346 */
void ext3_init_block_alloc_info(struct inode * inode);

/* /pub/scm/linux/kernel/git/acme/net-2.6/fs/ext3/balloc.c 388 */
void ext3_discard_reservation(struct inode * inode);

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-29 00:41:48 -03:00
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
e038f068b1 New dwarf: pfunct, see it in action: 
[acme@newtoy net-2.6]$ pfunct ~acme/work/atag/atag | grep LRMI
void * LRMI_alloc_real(int size);
void LRMI_free_real(void * m);
int LRMI_init(void);
void set_regs(struct LRMI_regs * r);
void get_regs(struct LRMI_regs * r);
int LRMI_call(struct LRMI_regs * r);
int LRMI_int(int i, struct LRMI_regs * r);
[acme@newtoy net-2.6]$

[acme@newtoy net-2.6]$ pfunct kernel/sched.o task_running
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 19:07:45 -03:00
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
Arnaldo Carvalho de Melo
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
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
Arnaldo Carvalho de Melo
01f021b2a7 Prefix the functions that create the classes list with "classes__", 
in preparation to moving them to a library.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-28 14:16:29 -03:00
Arnaldo Carvalho de Melo
06672633cb Move the top level dwarf traversal of the CUs to a new function, 
classes__load().

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-28 14:08:46 -03:00
Arnaldo Carvalho de Melo
13ec307479 Move the global 'bf' buffer to the only place still using it. 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-28 13:51:34 -03:00
Arnaldo Carvalho de Melo
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
5c3d14ac09 Renane class__print to class__print_struct and make class__print 
call it if the class ->tag is DW_TAG_structure_type, and do a basic
print for the other tags.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-28 13:37:20 -03:00
Arnaldo Carvalho de Melo
7f5ce05961 Initialize struct class->name in the constructor if no name was 
informed.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-28 13:16:59 -03:00
Arnaldo Carvalho de Melo
23cc5e41cb Get the file and line where the classes were declared and use it 
in the printout.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-28 09:52:08 -03:00
Arnaldo Carvalho de Melo
98295e3fd2 Improve attr_numeric to handle more form types, convering DW_AT_type, 
etc, so ditch attr_type().

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-27 17:51:18 -03:00
Arnaldo Carvalho de Melo
7dbb993d8b Rename attr_unsigned to attr_numeric, simplifying it to not require a 
Dwarf_Attribute to work on, as we just return a integer and it handles more
than just unsigned ints.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-27 15:04:18 -03:00
Arnaldo Carvalho de Melo
0c707643d7 Print the number of holes 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-26 03:31:58 -03:00
Arnaldo Carvalho de Melo
d36e7147f0 Stop using libdwarf from SGI, use the one in elfutils instead, the code got 
much cleaner and now uses what seems to be a better maintained DWARF library
that hopefully works well on 64bit platforms, well see.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-26 03:06:32 -03:00
Arnaldo Carvalho de Melo
e5e7c6fc8b Initialize nr_entries in class__new 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 15:21:34 -03:00
Arnaldo Carvalho de Melo
17025a38f2 Handle multi CU (Compile Unit) files, like vmlinux :-) 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 14:33:59 -03:00
Arnaldo Carvalho de Melo
aac0259cc0 Use return for consistency in main. 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 14:03:44 -03:00
Arnaldo Carvalho de Melo
3acc236241 Support void pointers, i.e. DW_TAG_pointer_type with no DW_AT_type. 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 13:47:54 -03:00
Arnaldo Carvalho de Melo
4881c2f0d2 Add a .gitignore file 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 13:32:07 -03:00
Arnaldo Carvalho de Melo
134120b796 Ditch the program_name variable, use "pahole" directly 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 13:29:38 -03:00
Arnaldo Carvalho de Melo
e01a32fddc Remove leftover check_error variable. 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 13:20:18 -03:00
Arnaldo Carvalho de Melo
2338691b42 Show the sum of the members sizeof only if there are holes, and if so print the 
sum of all holes too.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 13:18:43 -03:00
Arnaldo Carvalho de Melo
031b291d9a Add a copyright notice. 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 12:49:47 -03:00
Arnaldo Carvalho de Melo
51a8d81527 bitfields, ugh, if you have, say: 
struct foo {
        char    c:1;
        int     b:1;
        short   a:1;
};

the first byte_size for the first member (c) will be 1, as the "type"
is char, but the compiler combines all of them into a single 4 byte
bitfield, and the '4' only appear when the bit field has type int, in
the above case on the second member.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 12:46:26 -03:00
Arnaldo Carvalho de Melo
96ef1165ae Add support for enum printing. 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 12:42:53 -03:00
Arnaldo Carvalho de Melo
a4e260fc1a Grr, another fix for bitfields, this time for a sequence of 
bitfields, i.e. the offset changes from one bitfield to another.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 12:14:27 -03:00
Arnaldo Carvalho de Melo
e45d94f9de Fix bitfield accounting, as I was assuming that the first field would be 
at the 0 offset, but its not, so just look if the last member was in a
bitfield.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 12:01:18 -03:00
Arnaldo Carvalho de Melo
d4c95e9b49 Remove more dead code, we don't use the srcfile table. 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 02:55:36 -03:00
Arnaldo Carvalho de Melo
9b15e948e4 Remove dead code 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 02:42:57 -03:00
Arnaldo Carvalho de Melo
23971435ad Fix the struct declaration case. 
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 02:37:21 -03:00
Arnaldo Carvalho de Melo
e748ac69c3 Print the diff when the sum of the member sizeofs + the sum of the 
holes is not equal to the size of the struct:

struct task_struct {
<SNIP>
}; /* sizeof struct: 1312, sum sizeof members: 1279 */

/* BRAIN FART ALERT! 1312 != 1279 + 25(holes), diff = 8 */

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
 2006-10-25 01:18:15 -03:00