43de2d269f
[CLASSES]: Use ISO C99 integer types more comprehensively
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-28 11:18:43 -02:00
a6d3a1c5e3
[CLASSES]: Be a bit paranoid on class_member__new
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-28 10:10:07 -02:00
95578b7694
[CLASSES]: Shrink struct class_member
...
[acme@newtoy pahole]$ codiff build/libclasses.so.orig build/libclasses.so
/home/acme/pahole/classes.c:
struct class_member | -16
1 struct changed
class_member__new | +6
class_member__names | +5
class_member__print | -9
class__find_holes | -37
class__print_struct | -22
cu__process_class | +1
6 functions changed, 12 bytes added, 68 bytes removed
[acme@newtoy pahole]$
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-28 10:09:18 -02:00
849eda4a71
[CLASSES]: Fix abstract_origin type, its a Dwarf_Off
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-28 09:38:40 -02:00
e838c259e0
[CLASSES]: low_pc and high_pc attributes are Dwarf_Addr
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-28 09:36:39 -02:00
f397d61173
[CTRACER]: Load directory trees
...
And now we have --kprobes to specify where to find the kprobes struct
definitions, needed as we don't include any header files, emitting the needed
struct definitions, forward declarations when just pointers are used and also
for function prototypes.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-27 14:59:17 -02:00
3ac4b868aa
[CLASSES]: Introduce cus__load_dir()
...
To load directory trees, looking for files with a specified glob mask, calling
cus__load() on the ones that match and optionally recursively searching for
more matches in subdirectories.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-27 14:57:19 -02:00
b0e2c51ec8
[CLASSES]: Allow struct cus instances to share a list of defs and fwd_decls
...
So that we can extract bits from one and combine it bits from other instances,
like we'll do in ctracer, where we want to have a cus instance just to get the
kprobes definitions and forward declarations but not handle the methods in it.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-27 14:39:37 -02:00
5f2af297df
[CLASSES]: Emit definitions for DW_TAG_subroutine_type in cus__emit_tag_definitions
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-27 10:21:40 -02:00
6be23f3d82
[CLASSES]: Support unions
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-26 20:44:03 -02:00
bc5728f294
[CLASSES]: Store the high and low pc addresses in inline_expansion
...
For the ranges cases we store the lowest low_pc (in the first range) and the
highest high_pc (in the last range).
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-26 11:44:05 -02:00
3e60a747e6
[CLASSES]: Use size_t for size variables
...
uint64_t is a bit excessive.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 22:27:22 -02:00
c6713500c9
[CLASSES]: Tidy up class__print_struct prefix, suffix
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 19:46:52 -02:00
e07a9095c4
[CTRACER]: Add missing newlines after kretprobes
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 14:41:07 -02:00
6497bcae21
[CLASSES]: Handle typedef opaque types
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 14:29:08 -02:00
baadeeb7c0
[CLASSES]: Add a hack for the parm lists in function pointer struct members
...
To "fix" this:
/* include/linux/timer.h:10 */
struct timer_list {
<SNIP>
void (*function)(); /* 12 4 */
<SNIP>
ctracer.c:3077: warning: function declaration isn't a prototype
Doing this for now:
struct timer_list {
<SNIP>
void (*function)(void /* FIXME: add parm list */); /* 12 4 */
<SNIP>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 14:06:48 -02:00
9de459007b
[CLASSES]: Handle alternative function typedefs
...
Now we handle:
typedef void (dio_iodone_t)(void /* FIXME: add parm list */);
In addition to:
typedef int (*kprobe_pre_handler_t)(void /* FIXME: add parm list */);
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 14:00:16 -02:00
8716a7e2a7
[CLASSES]: Handle arrays in cus__emit_tag_definitions
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 13:52:28 -02:00
4587fc886a
[CLASSES]: Handle 'const' and 'volatile' in cus__emit_tag_definitions
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 13:51:01 -02:00
c9ccd3bb04
[CTRACER]: Add helper functions to emit struct definitions and fwd declarations
...
[acme@newtoy pahole]$ codiff build/ctracer.before build/ctracer
/home/acme/pahole/ctracer.c:
emit_module_preamble | -188
1 function changed, 188 bytes removed
/home/acme/pahole/ctracer.c:
emit_struct_defs | +74
emit_class_fwd_decl | +58
2 functions changed, 132 bytes added
build/ctracer:
3 functions changed, 132 bytes added, 188 bytes removed
[acme@newtoy pahole]$
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 13:36:13 -02:00
ef4fe6ebac
[CODIFF]: Find structs that were removed
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 13:35:21 -02:00
349463c0ca
[CODIFF]: Handle new functions
...
[acme@newtoy pahole]$ codiff build/ctracer.before build/ctracer
/home/acme/pahole/ctracer.c:
emit_module_preamble | -188
1 function changed, 188 bytes removed
/home/acme/pahole/ctracer.c:
emit_struct_defs | +74
emit_class_fwd_decl | +58
2 functions changed, 132 bytes added
build/ctracer:
3 functions changed, 132 bytes added, 188 bytes removed
[acme@newtoy pahole]$
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 13:03:33 -02:00
7483c767f4
[CLASSES]: 'type' is also a Dwarf_Off
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 12:18:14 -02:00
45c40e4b8d
[CLASSES]: Use Dwarf_Off type for the cu_offset derived variables/members
...
This is part of a cleanup process were I'm revisiting the types used for
the various abstractions, using the correct libdw.h types.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 12:07:41 -02:00
30128e9d11
[CLASSES]: Use uint32_t for the cu id
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 12:00:07 -02:00
3ca40af1fd
[CLASSES]: Add support for enums
...
Be it named enums such as:
/* include/linux/pid.h:7 */
enum pid_type {
PIDTYPE_PID = 0,
PIDTYPE_PGID = 1,
PIDTYPE_SID = 2,
PIDTYPE_MAX = 3,
};
Or nameless enums inside structs:
/* include/linux/journal-head.h:14 */
typedef struct transaction_s {
journal_t * t_journal; /* 0 4 */
tid_t t_tid; /* 4 4 */
enum {
T_RUNNING = 0,
T_LOCKED = 1,
T_RUNDOWN = 2,
T_FLUSH = 3,
T_COMMIT = 4,
T_FINISHED = 5,
} t_state; /* 8 4 */
long unsigned int t_log_start; /* 12 4 */
<SNIP>
} transaction_t; /* size: 84, cachelines: 3 */
/* last cacheline: 20 bytes */
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-24 11:56:59 -02:00
ff9c2b79cd
[CTRACER]: Emit kretprobes too
...
Now we get this using 'ctracer vmlinux sk_buff', for just one ping packet:
[14402.349410] -> ne2k_pci_block_input: skb=cea97c00
[14402.351310] <- ne2k_pci_block_input
[14402.352712] -> eth_type_trans: skb=cea97c00
[14402.353909] <- eth_type_trans
[14402.354721] -> netif_rx: skb=cea97c00
[14402.355682] <- netif_rx
[14402.356691] -> netif_receive_skb: skb=cea97c00
[14402.358007] -> arp_rcv: skb=cea97c00
[14402.359023] -> arp_process: skb=cea97c00
[14402.360152] -> ip_route_input: skb=cea97c00
[14402.361980] <- ip_route_input
[14402.369199] -> eth_header: skb=cea97b40
[14402.370336] <- eth_header
[14402.371159] -> arp_xmit: skb=cea97b40
[14402.372580] -> dev_queue_xmit: skb=cea97b40
[14402.373742] -> pfifo_fast_enqueue: skb=cea97b40
[14402.374849] <- pfifo_fast_enqueue
[14402.375827] -> dev_hard_start_xmit: skb=cea97b40
[14402.377021] -> ei_start_xmit: skb=cea97b40
[14402.378759] -> kfree_skb: skb=cea97b40
[14402.379783] -> __kfree_skb: skb=cea97b40
[14402.380854] -> kfree_skbmem: skb=cea97b40
[14402.382675] -> ne2k_pci_block_input: skb=cea97a80
[14402.383816] <- ne2k_pci_block_input
[14402.384656] -> eth_type_trans: skb=cea97a80
[14402.385632] <- eth_type_trans
[14402.386366] -> netif_rx: skb=cea97a80
[14402.387220] <- netif_rx
[14402.387949] -> skb_release_data: skb=cea97b40
[14402.389069] <- skb_release_data
[14402.389856] <- kfree_skbmem
[14402.390715] <- __kfree_skb
[14402.391761] <- kfree_skb
[14402.392875] <- ei_start_xmit
[14402.393594] <- dev_hard_start_xmit
[14402.394459] <- dev_queue_xmit
[14402.395169] <- arp_xmit
[14402.395852] -> kfree_skb: skb=cea97c00
[14402.396764] -> __kfree_skb: skb=cea97c00
[14402.397717] -> kfree_skbmem: skb=cea97c00
[14402.398677] -> skb_release_data: skb=cea97c00
[14402.399909] <- skb_release_data
[14402.400637] <- kfree_skbmem
[14402.401267] <- __kfree_skb
[14402.401875] <- kfree_skb
[14402.402489] <- arp_process
[14402.403156] <- arp_rcv
[14402.403757] <- netif_receive_skb
[14402.404674] -> netif_receive_skb: skb=cea97a80
[14402.405789] -> ip_rcv: skb=cea97a80
[14402.406837] -> ip_route_input: skb=cea97a80
[14402.407845] <- ip_route_input
[14402.408654] -> ip_local_deliver: skb=cea97a80
[14402.410031] -> icmp_rcv: skb=cea97a80
[14402.411105] -> __skb_checksum_complete: skb=cea97a80
[14402.412397] <- __skb_checksum_complete
[14402.413512] -> icmp_echo: skb=cea97a80
[14402.414584] -> icmp_reply: skb=cea97a80
[14402.415665] -> ip_options_echo: skb=cea97a80
[14402.416827] <- ip_options_echo
[14402.418188] -> dummy_xfrm_decode_session: skb=cea97a80
[14402.419426] <- dummy_xfrm_decode_session
[14402.422520] -> icmp_glue_bits: skb=cea97c00
[14402.424001] <- icmp_glue_bits
[14402.426607] -> ip_output: skb=cea97c00
[14402.428314] -> neigh_resolve_output: skb=cea97c00
[14402.429559] -> __neigh_event_send: skb=cea97c00
[14402.430747] <- __neigh_event_send
[14402.432143] -> eth_header: skb=cea97c00
[14402.433059] <- eth_header
[14402.433754] -> dev_queue_xmit: skb=cea97c00
[14402.434763] -> pfifo_fast_enqueue: skb=cea97c00
[14402.435782] <- pfifo_fast_enqueue
[14402.437177] -> dev_hard_start_xmit: skb=cea97c00
[14402.438281] -> ei_start_xmit: skb=cea97c00
[14402.439634] -> kfree_skb: skb=cea97c00
[14402.440543] -> __kfree_skb: skb=cea97c00
[14402.441530] -> sock_wfree: skb=cea97c00
[14402.442730] <- sock_wfree
[14402.443433] -> kfree_skbmem: skb=cea97c00
[14402.444383] -> skb_release_data: skb=cea97c00
[14402.445628] <- skb_release_data
[14402.446370] <- kfree_skbmem
[14402.447004] <- __kfree_skb
[14402.447613] <- kfree_skb
[14402.448207] <- ei_start_xmit
[14402.448862] <- dev_hard_start_xmit
[14402.449627] <- dev_queue_xmit
[14402.450328] <- neigh_resolve_output
[14402.451159] <- ip_output
[14402.451987] <- icmp_reply
[14402.452639] <- icmp_echo
[14402.453326] -> kfree_skb: skb=cea97a80
[14402.454220] -> __kfree_skb: skb=cea97a80
[14402.601772] -> kfree_skbmem: skb=cea97a80
[14402.602809] -> skb_release_data: skb=cea97a80
[14402.603762] <- skb_release_data
[14402.604479] <- kfree_skbmem
[14402.605072] <- __kfree_skb
[14402.605646] <- kfree_skb
[14402.606392] <- icmp_rcv
[14402.606996] <- ip_local_deliver
[14402.607694] <- ip_rcv
[14402.608236] <- netif_receive_skb
[14408.809296] -> arp_solicit: skb=00000000
[14408.811051] -> eth_header: skb=cea97a80
[14408.811977] <- eth_header
[14408.812845] -> arp_xmit: skb=cea97a80
[14408.813765] -> dev_queue_xmit: skb=cea97a80
[14408.814760] -> pfifo_fast_enqueue: skb=cea97a80
[14408.815763] <- pfifo_fast_enqueue
[14408.816657] -> dev_hard_start_xmit: skb=cea97a80
[14408.817730] -> ei_start_xmit: skb=cea97a80
[14408.818989] -> kfree_skb: skb=cea97a80
[14408.819892] -> __kfree_skb: skb=cea97a80
[14408.821529] -> ne2k_pci_block_input: skb=cea97c00
[14408.822605] <- ne2k_pci_block_input
[14408.823442] -> eth_type_trans: skb=cea97c00
[14408.824454] <- eth_type_trans
[14408.825198] -> netif_rx: skb=cea97c00
[14408.826049] <- netif_rx
[14408.826732] -> kfree_skbmem: skb=cea97a80
[14408.827681] -> skb_release_data: skb=cea97a80
[14408.828755] <- skb_release_data
[14408.829482] <- kfree_skbmem
[14408.830111] <- __kfree_skb
[14408.830720] <- kfree_skb
[14408.831312] <- ei_start_xmit
[14408.835039] <- dev_hard_start_xmit
[14408.835864] <- dev_queue_xmit
[14408.836495] <- arp_xmit
[14408.837114] <- arp_solicit
[14408.837889] -> netif_receive_skb: skb=cea97c00
[14408.838897] -> arp_rcv: skb=cea97c00
[14408.839933] -> arp_process: skb=cea97c00
[14408.841326] -> kfree_skb: skb=cea97c00
[14408.842194] -> __kfree_skb: skb=cea97c00
[14408.843070] -> kfree_skbmem: skb=cea97c00
[14408.844025] -> skb_release_data: skb=cea97c00
[14408.844932] <- skb_release_data
[14408.845595] <- kfree_skbmem
[14408.846181] <- __kfree_skb
[14408.846749] <- kfree_skb
[14408.847299] <- arp_process
[14408.847944] <- arp_rcv
[14408.848473] <- netif_receive_skb
Now we're getting to the point where a better, non printk based relaying module
is in demand, will look at blktrace relayfs stuff.
Getting access to the traced parameter at kretprobes time is badly needed, so
that we can correlate the exit calls with the entry ones.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
[14385.224958] ctracer: registered 331 entry probes
[14385.248000] ctracer: registered 331 exit probes
2006-12-23 23:42:39 -02:00
ca50c1a52f
[CLASSES]: Make cus__emit_struct_definitions register what it defines
...
So that we don't get duplicates.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 23:34:42 -02:00
82692a819d
[CLASSES]: Export cus__emit_fwd_decl
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 23:33:37 -02:00
8cecc52959
[CLASSES]: Look for nameless classes in cus__find_definition
...
structs typedef'ed...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 22:35:38 -02:00
297d7b3f8f
[CLASSES]: Handle cases where fwd decls and definitions can happen
...
If a definition is being emitted and there was already a forward declaration,
remove the class from the fwd_decl list before adding it to the declarations
list, in the reverse case just don't add it to the fwd_decl list.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 22:28:40 -02:00
2d7ec7cd35
[CLASSES]: Set ->{fwd_decl_emitted,visited} to speed up lookups
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 21:44:55 -02:00
bbac253ab0
[CLASSES]: Just move class__subroutine_ptr_mask before class_member__names
...
So that we can use it there.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 20:39:24 -02:00
6276810a8a
[CTRACER]: Group open coded function definition in a helper function
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 20:37:23 -02:00
d1a6c173b9
[CTRACER]: Print the number of registered probes at module load time
...
vmlinux sk_buff example:
[ 1933.122713] ctracer: registered 331 probes
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 20:22:40 -02:00
4c08435f55
[CTRACER]: Introduce emit_module_license
...
Its needed after all, if we want to use EXPORT_SYMBOL_GPL'ed symbols such as
register_jprobe, etc :-)
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 20:09:02 -02:00
a9d9241e48
[CLASSES]: Emit module_{exit,init} directly
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 19:58:00 -02:00
149f4f81ed
[CLASSES]: Introduce functions to rebuild structs, typedefs, etc
...
So that we can build a module that doesn't uses #includes to get these
definitions.
More work to be done for enums, etc, but this already is enough for
ctracer to handle tracing the sk_buff methods in vmlinux.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 19:29:27 -02:00
f7a934cf0a
[CLASSES]: Add _add and _find functions for definitions and fwd decls
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 18:53:25 -02:00
af9adf0b9a
[CLASSES]: Introduce cus__find_function_by_name
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 18:46:05 -02:00
7d581ce17c
[CLASSES]: Introduce list heads for definitions and forward declarations
...
In struct cus, that will be used when rebuilding class definitions for
enums, struct pointers, struct definitions, etc, in ctracer for a start.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 18:30:48 -02:00
86e083e47b
[CTRACER]: No need to use MODULE_{AUTHOR,LICENSE}
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 18:28:03 -02:00
64bf0272da
[CTRACER]: Use expanded forms of __init and __exit
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 18:24:25 -02:00
2e2cd691da
[CTRACER]: Don't emit 'NULL', just (void *)0
...
Again for not having to emit any "#include" in the ctracer generated module
source file.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 18:14:37 -02:00
c883f688cc
[CTRACER]: Use expanded form of JPROBE_ENTRY() macro
...
So that we don't need to include any header in the ctracer generated
module source file.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 18:12:41 -02:00
66ef6a39ba
[CLASSES]: Add optional prefix and suffix parameters to class__print
...
That will be used when typedefs are being emitted, etc.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 18:09:47 -02:00
79206c3a22
[CMAKE]: Move the debug setting to the right place
...
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-23 13:16:30 -02:00
3288e28168
[CTRACER]: Use parameter__names and add a little hack for enums
...
Now ctracer manages vmlinux at least for struct sk_buff, more to come as tests
are made with other classes (structs).
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-20 20:41:46 -02:00
27af1f615b
[CLASSES]: Introduce parameter__names
...
Some rework is needed to make class_member__names and parameter__names to share
more code, but there are things like bitfields that are exclusive to
class_member entries, etc.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-20 20:40:13 -02:00
f793f83a6d
[CTRACER]: struct function has a list of struct parameter
...
Not struct class_member, that was not much of a problem, as the
initial layout is the same (struct tag).
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-20 20:09:49 -02:00
Arnaldo Carvalho de Melo