2 * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com>
4 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License (not later!)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
21 * The parts for function graph printing was taken and modified from the
22 * Linux Kernel that were written by Frederic Weisbecker.
34 #include "trace-event.h"
36 int header_page_ts_offset
;
37 int header_page_ts_size
;
38 int header_page_size_offset
;
39 int header_page_size_size
;
40 int header_page_data_offset
;
41 int header_page_data_size
;
43 static char *input_buf
;
44 static unsigned long long input_buf_ptr
;
45 static unsigned long long input_buf_siz
;
50 static void init_input_buf(char *buf
, unsigned long long size
)
62 static struct cmdline
*cmdlines
;
63 static int cmdline_count
;
65 static int cmdline_cmp(const void *a
, const void *b
)
67 const struct cmdline
*ca
= a
;
68 const struct cmdline
*cb
= b
;
70 if (ca
->pid
< cb
->pid
)
72 if (ca
->pid
> cb
->pid
)
78 void parse_cmdlines(char *file
, int size __unused
)
81 struct cmdline_list
*next
;
84 } *list
= NULL
, *item
;
89 line
= strtok_r(file
, "\n", &next
);
91 item
= malloc_or_die(sizeof(*item
));
92 sscanf(line
, "%d %as", &item
->pid
,
93 (float *)(void *)&item
->comm
); /* workaround gcc warning */
96 line
= strtok_r(NULL
, "\n", &next
);
100 cmdlines
= malloc_or_die(sizeof(*cmdlines
) * cmdline_count
);
104 cmdlines
[i
].pid
= list
->pid
;
105 cmdlines
[i
].comm
= list
->comm
;
112 qsort(cmdlines
, cmdline_count
, sizeof(*cmdlines
), cmdline_cmp
);
115 static struct func_map
{
116 unsigned long long addr
;
120 static unsigned int func_count
;
122 static int func_cmp(const void *a
, const void *b
)
124 const struct func_map
*fa
= a
;
125 const struct func_map
*fb
= b
;
127 if (fa
->addr
< fb
->addr
)
129 if (fa
->addr
> fb
->addr
)
135 void parse_proc_kallsyms(char *file
, unsigned int size __unused
)
138 struct func_list
*next
;
139 unsigned long long addr
;
142 } *list
= NULL
, *item
;
150 line
= strtok_r(file
, "\n", &next
);
152 item
= malloc_or_die(sizeof(*item
));
154 ret
= sscanf(line
, "%as %c %as\t[%as",
155 (float *)(void *)&addr_str
, /* workaround gcc warning */
157 (float *)(void *)&item
->func
,
158 (float *)(void *)&item
->mod
);
159 item
->addr
= strtoull(addr_str
, NULL
, 16);
162 /* truncate the extra ']' */
164 item
->mod
[strlen(item
->mod
) - 1] = 0;
169 line
= strtok_r(NULL
, "\n", &next
);
173 func_list
= malloc_or_die(sizeof(*func_list
) * func_count
+ 1);
177 func_list
[i
].func
= list
->func
;
178 func_list
[i
].addr
= list
->addr
;
179 func_list
[i
].mod
= list
->mod
;
186 qsort(func_list
, func_count
, sizeof(*func_list
), func_cmp
);
189 * Add a special record at the end.
191 func_list
[func_count
].func
= NULL
;
192 func_list
[func_count
].addr
= 0;
193 func_list
[func_count
].mod
= NULL
;
197 * We are searching for a record in between, not an exact
200 static int func_bcmp(const void *a
, const void *b
)
202 const struct func_map
*fa
= a
;
203 const struct func_map
*fb
= b
;
205 if ((fa
->addr
== fb
->addr
) ||
207 (fa
->addr
> fb
->addr
&&
208 fa
->addr
< (fb
+1)->addr
))
211 if (fa
->addr
< fb
->addr
)
217 static struct func_map
*find_func(unsigned long long addr
)
219 struct func_map
*func
;
224 func
= bsearch(&key
, func_list
, func_count
, sizeof(*func_list
),
230 void print_funcs(void)
234 for (i
= 0; i
< (int)func_count
; i
++) {
238 if (func_list
[i
].mod
)
239 printf(" [%s]\n", func_list
[i
].mod
);
245 static struct printk_map
{
246 unsigned long long addr
;
249 static unsigned int printk_count
;
251 static int printk_cmp(const void *a
, const void *b
)
253 const struct func_map
*fa
= a
;
254 const struct func_map
*fb
= b
;
256 if (fa
->addr
< fb
->addr
)
258 if (fa
->addr
> fb
->addr
)
264 static struct printk_map
*find_printk(unsigned long long addr
)
266 struct printk_map
*printk
;
267 struct printk_map key
;
271 printk
= bsearch(&key
, printk_list
, printk_count
, sizeof(*printk_list
),
277 void parse_ftrace_printk(char *file
, unsigned int size __unused
)
280 struct printk_list
*next
;
281 unsigned long long addr
;
283 } *list
= NULL
, *item
;
290 line
= strtok_r(file
, "\n", &next
);
292 item
= malloc_or_die(sizeof(*item
));
293 ret
= sscanf(line
, "%as : %as",
294 (float *)(void *)&addr_str
, /* workaround gcc warning */
295 (float *)(void *)&item
->printk
);
296 item
->addr
= strtoull(addr_str
, NULL
, 16);
301 line
= strtok_r(NULL
, "\n", &next
);
305 printk_list
= malloc_or_die(sizeof(*printk_list
) * printk_count
+ 1);
309 printk_list
[i
].printk
= list
->printk
;
310 printk_list
[i
].addr
= list
->addr
;
317 qsort(printk_list
, printk_count
, sizeof(*printk_list
), printk_cmp
);
320 void print_printk(void)
324 for (i
= 0; i
< (int)printk_count
; i
++) {
325 printf("%016llx %s\n",
327 printk_list
[i
].printk
);
331 static struct event
*alloc_event(void)
335 event
= malloc_or_die(sizeof(*event
));
336 memset(event
, 0, sizeof(*event
));
353 static struct event
*event_list
;
355 static void add_event(struct event
*event
)
357 event
->next
= event_list
;
361 static int event_item_type(enum event_type type
)
364 case EVENT_ITEM
... EVENT_SQUOTE
:
366 case EVENT_ERROR
... EVENT_DELIM
:
372 static void free_arg(struct print_arg
*arg
)
380 free(arg
->atom
.atom
);
383 case PRINT_FIELD
... PRINT_OP
:
392 static enum event_type
get_type(int ch
)
395 return EVENT_NEWLINE
;
398 if (isalnum(ch
) || ch
== '_')
406 if (ch
== '(' || ch
== ')' || ch
== ',')
412 static int __read_char(void)
414 if (input_buf_ptr
>= input_buf_siz
)
417 return input_buf
[input_buf_ptr
++];
420 static int __peek_char(void)
422 if (input_buf_ptr
>= input_buf_siz
)
425 return input_buf
[input_buf_ptr
];
428 static enum event_type
__read_token(char **tok
)
431 int ch
, last_ch
, quote_ch
, next_ch
;
434 enum event_type type
;
444 if (type
== EVENT_NONE
)
452 *tok
= malloc_or_die(2);
460 next_ch
= __peek_char();
461 if (next_ch
== '>') {
462 buf
[i
++] = __read_char();
475 buf
[i
++] = __read_char();
487 default: /* what should we do instead? */
497 buf
[i
++] = __read_char();
502 /* don't keep quotes */
507 if (i
== (BUFSIZ
- 1)) {
510 *tok
= realloc(*tok
, tok_size
+ BUFSIZ
);
525 } while (ch
!= quote_ch
&& last_ch
!= '\\');
526 /* remove the last quote */
530 case EVENT_ERROR
... EVENT_SPACE
:
536 while (get_type(__peek_char()) == type
) {
537 if (i
== (BUFSIZ
- 1)) {
540 *tok
= realloc(*tok
, tok_size
+ BUFSIZ
);
559 *tok
= realloc(*tok
, tok_size
+ i
);
571 static void free_token(char *tok
)
577 static enum event_type
read_token(char **tok
)
579 enum event_type type
;
582 type
= __read_token(tok
);
583 if (type
!= EVENT_SPACE
)
594 static enum event_type
read_token_item(char **tok
)
596 enum event_type type
;
599 type
= __read_token(tok
);
600 if (type
!= EVENT_SPACE
&& type
!= EVENT_NEWLINE
)
610 static int test_type(enum event_type type
, enum event_type expect
)
612 if (type
!= expect
) {
613 die("Error: expected type %d but read %d",
620 static int test_type_token(enum event_type type
, char *token
,
621 enum event_type expect
, const char *expect_tok
)
623 if (type
!= expect
) {
624 die("Error: expected type %d but read %d",
629 if (strcmp(token
, expect_tok
) != 0) {
630 die("Error: expected '%s' but read '%s'",
637 static int __read_expect_type(enum event_type expect
, char **tok
, int newline_ok
)
639 enum event_type type
;
642 type
= read_token(tok
);
644 type
= read_token_item(tok
);
645 return test_type(type
, expect
);
648 static int read_expect_type(enum event_type expect
, char **tok
)
650 return __read_expect_type(expect
, tok
, 1);
653 static int __read_expected(enum event_type expect
, const char *str
, int newline_ok
)
655 enum event_type type
;
660 type
= read_token(&token
);
662 type
= read_token_item(&token
);
664 ret
= test_type_token(type
, token
, expect
, str
);
671 static int read_expected(enum event_type expect
, const char *str
)
673 return __read_expected(expect
, str
, 1);
676 static int read_expected_item(enum event_type expect
, const char *str
)
678 return __read_expected(expect
, str
, 0);
681 static char *event_read_name(void)
685 if (read_expected(EVENT_ITEM
, (char *)"name") < 0)
688 if (read_expected(EVENT_OP
, (char *)":") < 0)
691 if (read_expect_type(EVENT_ITEM
, &token
) < 0)
701 static int event_read_id(void)
706 if (read_expected_item(EVENT_ITEM
, (char *)"ID") < 0)
709 if (read_expected(EVENT_OP
, (char *)":") < 0)
712 if (read_expect_type(EVENT_ITEM
, &token
) < 0)
715 id
= strtoul(token
, NULL
, 0);
724 static int field_is_string(struct format_field
*field
)
726 if ((field
->flags
& FIELD_IS_ARRAY
) &&
727 (!strstr(field
->type
, "char") || !strstr(field
->type
, "u8") ||
728 !strstr(field
->type
, "s8")))
734 static int field_is_dynamic(struct format_field
*field
)
736 if (!strcmp(field
->type
, "__data_loc"))
742 static int event_read_fields(struct event
*event
, struct format_field
**fields
)
744 struct format_field
*field
= NULL
;
745 enum event_type type
;
751 type
= read_token(&token
);
752 if (type
== EVENT_NEWLINE
) {
759 if (test_type_token(type
, token
, EVENT_ITEM
, (char *)"field"))
763 type
= read_token(&token
);
765 * The ftrace fields may still use the "special" name.
768 if (event
->flags
& EVENT_FL_ISFTRACE
&&
769 type
== EVENT_ITEM
&& strcmp(token
, "special") == 0) {
771 type
= read_token(&token
);
774 if (test_type_token(type
, token
, EVENT_OP
, (char *)":") < 0)
777 if (read_expect_type(EVENT_ITEM
, &token
) < 0)
782 field
= malloc_or_die(sizeof(*field
));
783 memset(field
, 0, sizeof(*field
));
785 /* read the rest of the type */
787 type
= read_token(&token
);
788 if (type
== EVENT_ITEM
||
789 (type
== EVENT_OP
&& strcmp(token
, "*") == 0) ||
791 * Some of the ftrace fields are broken and have
792 * an illegal "." in them.
794 (event
->flags
& EVENT_FL_ISFTRACE
&&
795 type
== EVENT_OP
&& strcmp(token
, ".") == 0)) {
797 if (strcmp(token
, "*") == 0)
798 field
->flags
|= FIELD_IS_POINTER
;
801 field
->type
= realloc(field
->type
,
802 strlen(field
->type
) +
803 strlen(last_token
) + 2);
804 strcat(field
->type
, " ");
805 strcat(field
->type
, last_token
);
807 field
->type
= last_token
;
816 die("no type found");
819 field
->name
= last_token
;
821 if (test_type(type
, EVENT_OP
))
824 if (strcmp(token
, "[") == 0) {
825 enum event_type last_type
= type
;
826 char *brackets
= token
;
829 field
->flags
|= FIELD_IS_ARRAY
;
831 type
= read_token(&token
);
832 while (strcmp(token
, "]") != 0) {
833 if (last_type
== EVENT_ITEM
&&
840 brackets
= realloc(brackets
,
842 strlen(token
) + len
);
844 strcat(brackets
, " ");
845 strcat(brackets
, token
);
847 type
= read_token(&token
);
848 if (type
== EVENT_NONE
) {
849 die("failed to find token");
856 brackets
= realloc(brackets
, strlen(brackets
) + 2);
857 strcat(brackets
, "]");
859 /* add brackets to type */
861 type
= read_token(&token
);
863 * If the next token is not an OP, then it is of
864 * the format: type [] item;
866 if (type
== EVENT_ITEM
) {
867 field
->type
= realloc(field
->type
,
868 strlen(field
->type
) +
869 strlen(field
->name
) +
870 strlen(brackets
) + 2);
871 strcat(field
->type
, " ");
872 strcat(field
->type
, field
->name
);
873 free_token(field
->name
);
874 strcat(field
->type
, brackets
);
876 type
= read_token(&token
);
878 field
->type
= realloc(field
->type
,
879 strlen(field
->type
) +
880 strlen(brackets
) + 1);
881 strcat(field
->type
, brackets
);
886 if (field_is_string(field
)) {
887 field
->flags
|= FIELD_IS_STRING
;
888 if (field_is_dynamic(field
))
889 field
->flags
|= FIELD_IS_DYNAMIC
;
892 if (test_type_token(type
, token
, EVENT_OP
, (char *)";"))
896 if (read_expected(EVENT_ITEM
, (char *)"offset") < 0)
899 if (read_expected(EVENT_OP
, (char *)":") < 0)
902 if (read_expect_type(EVENT_ITEM
, &token
))
904 field
->offset
= strtoul(token
, NULL
, 0);
907 if (read_expected(EVENT_OP
, (char *)";") < 0)
910 if (read_expected(EVENT_ITEM
, (char *)"size") < 0)
913 if (read_expected(EVENT_OP
, (char *)":") < 0)
916 if (read_expect_type(EVENT_ITEM
, &token
))
918 field
->size
= strtoul(token
, NULL
, 0);
921 if (read_expected(EVENT_OP
, (char *)";") < 0)
924 if (read_expected(EVENT_ITEM
, (char *)"signed") < 0)
927 if (read_expected(EVENT_OP
, (char *)":") < 0)
930 if (read_expect_type(EVENT_ITEM
, &token
))
932 if (strtoul(token
, NULL
, 0))
933 field
->flags
|= FIELD_IS_SIGNED
;
936 if (read_expected(EVENT_OP
, (char *)";") < 0)
939 if (read_expect_type(EVENT_NEWLINE
, &token
) < 0)
944 fields
= &field
->next
;
958 static int event_read_format(struct event
*event
)
963 if (read_expected_item(EVENT_ITEM
, (char *)"format") < 0)
966 if (read_expected(EVENT_OP
, (char *)":") < 0)
969 if (read_expect_type(EVENT_NEWLINE
, &token
))
973 ret
= event_read_fields(event
, &event
->format
.common_fields
);
976 event
->format
.nr_common
= ret
;
978 ret
= event_read_fields(event
, &event
->format
.fields
);
981 event
->format
.nr_fields
= ret
;
991 process_arg_token(struct event
*event
, struct print_arg
*arg
,
992 char **tok
, enum event_type type
);
994 static enum event_type
995 process_arg(struct event
*event
, struct print_arg
*arg
, char **tok
)
997 enum event_type type
;
1000 type
= read_token(&token
);
1003 return process_arg_token(event
, arg
, tok
, type
);
1006 static enum event_type
1007 process_cond(struct event
*event
, struct print_arg
*top
, char **tok
)
1009 struct print_arg
*arg
, *left
, *right
;
1010 enum event_type type
;
1013 arg
= malloc_or_die(sizeof(*arg
));
1014 memset(arg
, 0, sizeof(*arg
));
1016 left
= malloc_or_die(sizeof(*left
));
1018 right
= malloc_or_die(sizeof(*right
));
1020 arg
->type
= PRINT_OP
;
1021 arg
->op
.left
= left
;
1022 arg
->op
.right
= right
;
1025 type
= process_arg(event
, left
, &token
);
1026 if (test_type_token(type
, token
, EVENT_OP
, (char *)":"))
1031 type
= process_arg(event
, right
, &token
);
1033 top
->op
.right
= arg
;
1046 static int get_op_prio(char *op
)
1057 /* '>>' and '<<' are 8 */
1061 /* '==' and '!=' are 10 */
1071 die("unknown op '%c'", op
[0]);
1075 if (strcmp(op
, "++") == 0 ||
1076 strcmp(op
, "--") == 0) {
1078 } else if (strcmp(op
, ">>") == 0 ||
1079 strcmp(op
, "<<") == 0) {
1081 } else if (strcmp(op
, ">=") == 0 ||
1082 strcmp(op
, "<=") == 0) {
1084 } else if (strcmp(op
, "==") == 0 ||
1085 strcmp(op
, "!=") == 0) {
1087 } else if (strcmp(op
, "&&") == 0) {
1089 } else if (strcmp(op
, "||") == 0) {
1092 die("unknown op '%s'", op
);
1098 static void set_op_prio(struct print_arg
*arg
)
1101 /* single ops are the greatest */
1102 if (!arg
->op
.left
|| arg
->op
.left
->type
== PRINT_NULL
) {
1107 arg
->op
.prio
= get_op_prio(arg
->op
.op
);
1110 static enum event_type
1111 process_op(struct event
*event
, struct print_arg
*arg
, char **tok
)
1113 struct print_arg
*left
, *right
= NULL
;
1114 enum event_type type
;
1117 /* the op is passed in via tok */
1120 if (arg
->type
== PRINT_OP
&& !arg
->op
.left
) {
1121 /* handle single op */
1123 die("bad op token %s", token
);
1132 die("bad op token %s", token
);
1136 /* make an empty left */
1137 left
= malloc_or_die(sizeof(*left
));
1138 left
->type
= PRINT_NULL
;
1139 arg
->op
.left
= left
;
1141 right
= malloc_or_die(sizeof(*right
));
1142 arg
->op
.right
= right
;
1144 type
= process_arg(event
, right
, tok
);
1146 } else if (strcmp(token
, "?") == 0) {
1148 left
= malloc_or_die(sizeof(*left
));
1149 /* copy the top arg to the left */
1152 arg
->type
= PRINT_OP
;
1154 arg
->op
.left
= left
;
1157 type
= process_cond(event
, arg
, tok
);
1159 } else if (strcmp(token
, ">>") == 0 ||
1160 strcmp(token
, "<<") == 0 ||
1161 strcmp(token
, "&") == 0 ||
1162 strcmp(token
, "|") == 0 ||
1163 strcmp(token
, "&&") == 0 ||
1164 strcmp(token
, "||") == 0 ||
1165 strcmp(token
, "-") == 0 ||
1166 strcmp(token
, "+") == 0 ||
1167 strcmp(token
, "*") == 0 ||
1168 strcmp(token
, "^") == 0 ||
1169 strcmp(token
, "/") == 0 ||
1170 strcmp(token
, "==") == 0 ||
1171 strcmp(token
, "!=") == 0) {
1173 left
= malloc_or_die(sizeof(*left
));
1175 /* copy the top arg to the left */
1178 arg
->type
= PRINT_OP
;
1180 arg
->op
.left
= left
;
1184 right
= malloc_or_die(sizeof(*right
));
1186 type
= process_arg(event
, right
, tok
);
1188 arg
->op
.right
= right
;
1191 die("unknown op '%s'", token
);
1192 /* the arg is now the left side */
1197 if (type
== EVENT_OP
) {
1200 /* higher prios need to be closer to the root */
1201 prio
= get_op_prio(*tok
);
1203 if (prio
> arg
->op
.prio
)
1204 return process_op(event
, arg
, tok
);
1206 return process_op(event
, right
, tok
);
1212 static enum event_type
1213 process_entry(struct event
*event __unused
, struct print_arg
*arg
,
1216 enum event_type type
;
1220 if (read_expected(EVENT_OP
, (char *)"->") < 0)
1223 if (read_expect_type(EVENT_ITEM
, &token
) < 0)
1227 arg
->type
= PRINT_FIELD
;
1228 arg
->field
.name
= field
;
1230 type
= read_token(&token
);
1240 static char *arg_eval (struct print_arg
*arg
);
1242 static long long arg_num_eval(struct print_arg
*arg
)
1244 long long left
, right
;
1247 switch (arg
->type
) {
1249 val
= strtoll(arg
->atom
.atom
, NULL
, 0);
1252 val
= arg_num_eval(arg
->typecast
.item
);
1255 switch (arg
->op
.op
[0]) {
1257 left
= arg_num_eval(arg
->op
.left
);
1258 right
= arg_num_eval(arg
->op
.right
);
1260 val
= left
|| right
;
1265 left
= arg_num_eval(arg
->op
.left
);
1266 right
= arg_num_eval(arg
->op
.right
);
1268 val
= left
&& right
;
1273 left
= arg_num_eval(arg
->op
.left
);
1274 right
= arg_num_eval(arg
->op
.right
);
1275 switch (arg
->op
.op
[1]) {
1280 val
= left
<< right
;
1283 val
= left
<= right
;
1286 die("unknown op '%s'", arg
->op
.op
);
1290 left
= arg_num_eval(arg
->op
.left
);
1291 right
= arg_num_eval(arg
->op
.right
);
1292 switch (arg
->op
.op
[1]) {
1297 val
= left
>> right
;
1300 val
= left
>= right
;
1303 die("unknown op '%s'", arg
->op
.op
);
1307 left
= arg_num_eval(arg
->op
.left
);
1308 right
= arg_num_eval(arg
->op
.right
);
1310 if (arg
->op
.op
[1] != '=')
1311 die("unknown op '%s'", arg
->op
.op
);
1313 val
= left
== right
;
1316 left
= arg_num_eval(arg
->op
.left
);
1317 right
= arg_num_eval(arg
->op
.right
);
1319 switch (arg
->op
.op
[1]) {
1321 val
= left
!= right
;
1324 die("unknown op '%s'", arg
->op
.op
);
1328 die("unknown op '%s'", arg
->op
.op
);
1333 case PRINT_FIELD
... PRINT_SYMBOL
:
1336 die("invalid eval type %d", arg
->type
);
1342 static char *arg_eval (struct print_arg
*arg
)
1345 static char buf
[20];
1347 switch (arg
->type
) {
1349 return arg
->atom
.atom
;
1351 return arg_eval(arg
->typecast
.item
);
1353 val
= arg_num_eval(arg
);
1354 sprintf(buf
, "%lld", val
);
1358 case PRINT_FIELD
... PRINT_SYMBOL
:
1361 die("invalid eval type %d", arg
->type
);
1368 static enum event_type
1369 process_fields(struct event
*event
, struct print_flag_sym
**list
, char **tok
)
1371 enum event_type type
;
1372 struct print_arg
*arg
= NULL
;
1373 struct print_flag_sym
*field
;
1379 type
= read_token_item(&token
);
1380 if (test_type_token(type
, token
, EVENT_OP
, (char *)"{"))
1383 arg
= malloc_or_die(sizeof(*arg
));
1386 type
= process_arg(event
, arg
, &token
);
1387 if (test_type_token(type
, token
, EVENT_DELIM
, (char *)","))
1390 field
= malloc_or_die(sizeof(*field
));
1391 memset(field
, 0, sizeof(field
));
1393 value
= arg_eval(arg
);
1394 field
->value
= strdup(value
);
1397 type
= process_arg(event
, arg
, &token
);
1398 if (test_type_token(type
, token
, EVENT_OP
, (char *)"}"))
1401 value
= arg_eval(arg
);
1402 field
->str
= strdup(value
);
1407 list
= &field
->next
;
1410 type
= read_token_item(&token
);
1411 } while (type
== EVENT_DELIM
&& strcmp(token
, ",") == 0);
1423 static enum event_type
1424 process_flags(struct event
*event
, struct print_arg
*arg
, char **tok
)
1426 struct print_arg
*field
;
1427 enum event_type type
;
1430 memset(arg
, 0, sizeof(*arg
));
1431 arg
->type
= PRINT_FLAGS
;
1433 if (read_expected_item(EVENT_DELIM
, (char *)"(") < 0)
1436 field
= malloc_or_die(sizeof(*field
));
1438 type
= process_arg(event
, field
, &token
);
1439 if (test_type_token(type
, token
, EVENT_DELIM
, (char *)","))
1442 arg
->flags
.field
= field
;
1444 type
= read_token_item(&token
);
1445 if (event_item_type(type
)) {
1446 arg
->flags
.delim
= token
;
1447 type
= read_token_item(&token
);
1450 if (test_type_token(type
, token
, EVENT_DELIM
, (char *)","))
1453 type
= process_fields(event
, &arg
->flags
.flags
, &token
);
1454 if (test_type_token(type
, token
, EVENT_DELIM
, (char *)")"))
1458 type
= read_token_item(tok
);
1466 static enum event_type
1467 process_symbols(struct event
*event
, struct print_arg
*arg
, char **tok
)
1469 struct print_arg
*field
;
1470 enum event_type type
;
1473 memset(arg
, 0, sizeof(*arg
));
1474 arg
->type
= PRINT_SYMBOL
;
1476 if (read_expected_item(EVENT_DELIM
, (char *)"(") < 0)
1479 field
= malloc_or_die(sizeof(*field
));
1481 type
= process_arg(event
, field
, &token
);
1482 if (test_type_token(type
, token
, EVENT_DELIM
, (char *)","))
1485 arg
->symbol
.field
= field
;
1487 type
= process_fields(event
, &arg
->symbol
.symbols
, &token
);
1488 if (test_type_token(type
, token
, EVENT_DELIM
, (char *)")"))
1492 type
= read_token_item(tok
);
1500 static enum event_type
1501 process_paren(struct event
*event
, struct print_arg
*arg
, char **tok
)
1503 struct print_arg
*item_arg
;
1504 enum event_type type
;
1508 type
= process_arg(event
, arg
, &token
);
1510 if (type
== EVENT_ERROR
)
1513 if (type
== EVENT_OP
) {
1514 /* handle the ptr casts */
1515 if (!strcmp(token
, "*")) {
1517 * FIXME: should we zapp whitespaces before ')' ?
1518 * (may require a peek_token_item())
1520 if (__peek_char() == ')') {
1523 type
= read_token_item(&token
);
1527 type
= process_op(event
, arg
, &token
);
1529 if (type
== EVENT_ERROR
)
1534 if (test_type_token(type
, token
, EVENT_DELIM
, (char *)")")) {
1540 type
= read_token_item(&token
);
1543 * If the next token is an item or another open paren, then
1544 * this was a typecast.
1546 if (event_item_type(type
) ||
1547 (type
== EVENT_DELIM
&& strcmp(token
, "(") == 0)) {
1549 /* make this a typecast and contine */
1551 /* prevous must be an atom */
1552 if (arg
->type
!= PRINT_ATOM
)
1553 die("previous needed to be PRINT_ATOM");
1555 item_arg
= malloc_or_die(sizeof(*item_arg
));
1557 arg
->type
= PRINT_TYPE
;
1559 char *old
= arg
->atom
.atom
;
1561 arg
->atom
.atom
= malloc_or_die(strlen(old
+ 3));
1562 sprintf(arg
->atom
.atom
, "%s *", old
);
1565 arg
->typecast
.type
= arg
->atom
.atom
;
1566 arg
->typecast
.item
= item_arg
;
1567 type
= process_arg_token(event
, item_arg
, &token
, type
);
1576 static enum event_type
1577 process_str(struct event
*event __unused
, struct print_arg
*arg
, char **tok
)
1579 enum event_type type
;
1582 if (read_expected(EVENT_DELIM
, (char *)"(") < 0)
1585 if (read_expect_type(EVENT_ITEM
, &token
) < 0)
1588 arg
->type
= PRINT_STRING
;
1589 arg
->string
.string
= token
;
1590 arg
->string
.offset
= -1;
1592 if (read_expected(EVENT_DELIM
, (char *)")") < 0)
1595 type
= read_token(&token
);
1605 process_arg_token(struct event
*event
, struct print_arg
*arg
,
1606 char **tok
, enum event_type type
)
1615 if (strcmp(token
, "REC") == 0) {
1617 type
= process_entry(event
, arg
, &token
);
1618 } else if (strcmp(token
, "__print_flags") == 0) {
1620 type
= process_flags(event
, arg
, &token
);
1621 } else if (strcmp(token
, "__print_symbolic") == 0) {
1623 type
= process_symbols(event
, arg
, &token
);
1624 } else if (strcmp(token
, "__get_str") == 0) {
1626 type
= process_str(event
, arg
, &token
);
1629 /* test the next token */
1630 type
= read_token_item(&token
);
1632 /* atoms can be more than one token long */
1633 while (type
== EVENT_ITEM
) {
1634 atom
= realloc(atom
, strlen(atom
) + strlen(token
) + 2);
1636 strcat(atom
, token
);
1638 type
= read_token_item(&token
);
1641 /* todo, test for function */
1643 arg
->type
= PRINT_ATOM
;
1644 arg
->atom
.atom
= atom
;
1649 arg
->type
= PRINT_ATOM
;
1650 arg
->atom
.atom
= token
;
1651 type
= read_token_item(&token
);
1654 if (strcmp(token
, "(") == 0) {
1656 type
= process_paren(event
, arg
, &token
);
1660 /* handle single ops */
1661 arg
->type
= PRINT_OP
;
1663 arg
->op
.left
= NULL
;
1664 type
= process_op(event
, arg
, &token
);
1668 case EVENT_ERROR
... EVENT_NEWLINE
:
1670 die("unexpected type %d", type
);
1677 static int event_read_print_args(struct event
*event
, struct print_arg
**list
)
1679 enum event_type type
;
1680 struct print_arg
*arg
;
1685 arg
= malloc_or_die(sizeof(*arg
));
1686 memset(arg
, 0, sizeof(*arg
));
1688 type
= process_arg(event
, arg
, &token
);
1690 if (type
== EVENT_ERROR
) {
1698 if (type
== EVENT_OP
) {
1699 type
= process_op(event
, arg
, &token
);
1704 if (type
== EVENT_DELIM
&& strcmp(token
, ",") == 0) {
1711 } while (type
!= EVENT_NONE
);
1713 if (type
!= EVENT_NONE
)
1719 static int event_read_print(struct event
*event
)
1721 enum event_type type
;
1725 if (read_expected_item(EVENT_ITEM
, (char *)"print") < 0)
1728 if (read_expected(EVENT_ITEM
, (char *)"fmt") < 0)
1731 if (read_expected(EVENT_OP
, (char *)":") < 0)
1734 if (read_expect_type(EVENT_DQUOTE
, &token
) < 0)
1738 event
->print_fmt
.format
= token
;
1739 event
->print_fmt
.args
= NULL
;
1741 /* ok to have no arg */
1742 type
= read_token_item(&token
);
1744 if (type
== EVENT_NONE
)
1747 /* Handle concatination of print lines */
1748 if (type
== EVENT_DQUOTE
) {
1751 cat
= malloc_or_die(strlen(event
->print_fmt
.format
) +
1753 strcpy(cat
, event
->print_fmt
.format
);
1756 free_token(event
->print_fmt
.format
);
1757 event
->print_fmt
.format
= NULL
;
1762 if (test_type_token(type
, token
, EVENT_DELIM
, (char *)","))
1767 ret
= event_read_print_args(event
, &event
->print_fmt
.args
);
1778 static struct format_field
*
1779 find_common_field(struct event
*event
, const char *name
)
1781 struct format_field
*format
;
1783 for (format
= event
->format
.common_fields
;
1784 format
; format
= format
->next
) {
1785 if (strcmp(format
->name
, name
) == 0)
1792 static struct format_field
*
1793 find_field(struct event
*event
, const char *name
)
1795 struct format_field
*format
;
1797 for (format
= event
->format
.fields
;
1798 format
; format
= format
->next
) {
1799 if (strcmp(format
->name
, name
) == 0)
1806 static struct format_field
*
1807 find_any_field(struct event
*event
, const char *name
)
1809 struct format_field
*format
;
1811 format
= find_common_field(event
, name
);
1814 return find_field(event
, name
);
1817 static unsigned long long read_size(void *ptr
, int size
)
1821 return *(unsigned char *)ptr
;
1823 return data2host2(ptr
);
1825 return data2host4(ptr
);
1827 return data2host8(ptr
);
1835 raw_field_value(struct event
*event
, const char *name
, void *data
)
1837 struct format_field
*field
;
1839 field
= find_any_field(event
, name
);
1843 return read_size(data
+ field
->offset
, field
->size
);
1846 void *raw_field_ptr(struct event
*event
, const char *name
, void *data
)
1848 struct format_field
*field
;
1850 field
= find_any_field(event
, name
);
1854 return data
+ field
->offset
;
1857 static int get_common_info(const char *type
, int *offset
, int *size
)
1859 struct event
*event
;
1860 struct format_field
*field
;
1863 * All events should have the same common elements.
1864 * Pick any event to find where the type is;
1867 die("no event_list!");
1870 field
= find_common_field(event
, type
);
1872 die("field '%s' not found", type
);
1874 *offset
= field
->offset
;
1875 *size
= field
->size
;
1880 int trace_parse_common_type(void *data
)
1882 static int type_offset
;
1883 static int type_size
;
1887 ret
= get_common_info("common_type",
1893 return read_size(data
+ type_offset
, type_size
);
1896 static int parse_common_pid(void *data
)
1898 static int pid_offset
;
1899 static int pid_size
;
1903 ret
= get_common_info("common_pid",
1910 return read_size(data
+ pid_offset
, pid_size
);
1913 struct event
*trace_find_event(int id
)
1915 struct event
*event
;
1917 for (event
= event_list
; event
; event
= event
->next
) {
1918 if (event
->id
== id
)
1924 static unsigned long long eval_num_arg(void *data
, int size
,
1925 struct event
*event
, struct print_arg
*arg
)
1927 unsigned long long val
= 0;
1928 unsigned long long left
, right
;
1930 switch (arg
->type
) {
1935 return strtoull(arg
->atom
.atom
, NULL
, 0);
1937 if (!arg
->field
.field
) {
1938 arg
->field
.field
= find_any_field(event
, arg
->field
.name
);
1939 if (!arg
->field
.field
)
1940 die("field %s not found", arg
->field
.name
);
1942 /* must be a number */
1943 val
= read_size(data
+ arg
->field
.field
->offset
,
1944 arg
->field
.field
->size
);
1950 return eval_num_arg(data
, size
, event
, arg
->typecast
.item
);
1955 left
= eval_num_arg(data
, size
, event
, arg
->op
.left
);
1956 right
= eval_num_arg(data
, size
, event
, arg
->op
.right
);
1957 switch (arg
->op
.op
[0]) {
1960 val
= left
|| right
;
1966 val
= left
&& right
;
1971 switch (arg
->op
.op
[1]) {
1976 val
= left
<< right
;
1979 val
= left
<= right
;
1982 die("unknown op '%s'", arg
->op
.op
);
1986 switch (arg
->op
.op
[1]) {
1991 val
= left
>> right
;
1994 val
= left
>= right
;
1997 die("unknown op '%s'", arg
->op
.op
);
2001 if (arg
->op
.op
[1] != '=')
2002 die("unknown op '%s'", arg
->op
.op
);
2003 val
= left
== right
;
2006 die("unknown op '%s'", arg
->op
.op
);
2009 default: /* not sure what to do there */
2017 unsigned long long value
;
2020 static const struct flag flags
[] = {
2021 { "HI_SOFTIRQ", 0 },
2022 { "TIMER_SOFTIRQ", 1 },
2023 { "NET_TX_SOFTIRQ", 2 },
2024 { "NET_RX_SOFTIRQ", 3 },
2025 { "BLOCK_SOFTIRQ", 4 },
2026 { "BLOCK_IOPOLL_SOFTIRQ", 5 },
2027 { "TASKLET_SOFTIRQ", 6 },
2028 { "SCHED_SOFTIRQ", 7 },
2029 { "HRTIMER_SOFTIRQ", 8 },
2030 { "RCU_SOFTIRQ", 9 },
2032 { "HRTIMER_NORESTART", 0 },
2033 { "HRTIMER_RESTART", 1 },
2036 static unsigned long long eval_flag(const char *flag
)
2041 * Some flags in the format files do not get converted.
2042 * If the flag is not numeric, see if it is something that
2043 * we already know about.
2045 if (isdigit(flag
[0]))
2046 return strtoull(flag
, NULL
, 0);
2048 for (i
= 0; i
< (int)(sizeof(flags
)/sizeof(flags
[0])); i
++)
2049 if (strcmp(flags
[i
].name
, flag
) == 0)
2050 return flags
[i
].value
;
2055 static void print_str_arg(void *data
, int size
,
2056 struct event
*event
, struct print_arg
*arg
)
2058 struct print_flag_sym
*flag
;
2059 unsigned long long val
, fval
;
2063 switch (arg
->type
) {
2068 printf("%s", arg
->atom
.atom
);
2071 if (!arg
->field
.field
) {
2072 arg
->field
.field
= find_any_field(event
, arg
->field
.name
);
2073 if (!arg
->field
.field
)
2074 die("field %s not found", arg
->field
.name
);
2076 str
= malloc_or_die(arg
->field
.field
->size
+ 1);
2077 memcpy(str
, data
+ arg
->field
.field
->offset
,
2078 arg
->field
.field
->size
);
2079 str
[arg
->field
.field
->size
] = 0;
2084 val
= eval_num_arg(data
, size
, event
, arg
->flags
.field
);
2086 for (flag
= arg
->flags
.flags
; flag
; flag
= flag
->next
) {
2087 fval
= eval_flag(flag
->value
);
2088 if (!val
&& !fval
) {
2089 printf("%s", flag
->str
);
2092 if (fval
&& (val
& fval
) == fval
) {
2093 if (print
&& arg
->flags
.delim
)
2094 printf("%s", arg
->flags
.delim
);
2095 printf("%s", flag
->str
);
2102 val
= eval_num_arg(data
, size
, event
, arg
->symbol
.field
);
2103 for (flag
= arg
->symbol
.symbols
; flag
; flag
= flag
->next
) {
2104 fval
= eval_flag(flag
->value
);
2106 printf("%s", flag
->str
);
2114 case PRINT_STRING
: {
2117 if (arg
->string
.offset
== -1) {
2118 struct format_field
*f
;
2120 f
= find_any_field(event
, arg
->string
.string
);
2121 arg
->string
.offset
= f
->offset
;
2123 str_offset
= *(int *)(data
+ arg
->string
.offset
);
2124 str_offset
&= 0xffff;
2125 printf("%s", ((char *)data
) + str_offset
);
2130 * The only op for string should be ? :
2132 if (arg
->op
.op
[0] != '?')
2134 val
= eval_num_arg(data
, size
, event
, arg
->op
.left
);
2136 print_str_arg(data
, size
, event
, arg
->op
.right
->op
.left
);
2138 print_str_arg(data
, size
, event
, arg
->op
.right
->op
.right
);
2146 static struct print_arg
*make_bprint_args(char *fmt
, void *data
, int size
, struct event
*event
)
2148 static struct format_field
*field
, *ip_field
;
2149 struct print_arg
*args
, *arg
, **next
;
2150 unsigned long long ip
, val
;
2155 field
= find_field(event
, "buf");
2157 die("can't find buffer field for binary printk");
2158 ip_field
= find_field(event
, "ip");
2160 die("can't find ip field for binary printk");
2163 ip
= read_size(data
+ ip_field
->offset
, ip_field
->size
);
2166 * The first arg is the IP pointer.
2168 args
= malloc_or_die(sizeof(*args
));
2173 arg
->type
= PRINT_ATOM
;
2174 arg
->atom
.atom
= malloc_or_die(32);
2175 sprintf(arg
->atom
.atom
, "%lld", ip
);
2177 /* skip the first "%pf : " */
2178 for (ptr
= fmt
+ 6, bptr
= data
+ field
->offset
;
2179 bptr
< data
+ size
&& *ptr
; ptr
++) {
2203 bptr
= (void *)(((unsigned long)bptr
+ (long_size
- 1)) &
2215 val
= read_size(bptr
, ls
);
2217 arg
= malloc_or_die(sizeof(*arg
));
2219 arg
->type
= PRINT_ATOM
;
2220 arg
->atom
.atom
= malloc_or_die(32);
2221 sprintf(arg
->atom
.atom
, "%lld", val
);
2226 arg
= malloc_or_die(sizeof(*arg
));
2228 arg
->type
= PRINT_STRING
;
2229 arg
->string
.string
= strdup(bptr
);
2230 bptr
+= strlen(bptr
) + 1;
2242 static void free_args(struct print_arg
*args
)
2244 struct print_arg
*next
;
2249 if (args
->type
== PRINT_ATOM
)
2250 free(args
->atom
.atom
);
2252 free(args
->string
.string
);
2258 static char *get_bprint_format(void *data
, int size __unused
, struct event
*event
)
2260 unsigned long long addr
;
2261 static struct format_field
*field
;
2262 struct printk_map
*printk
;
2267 field
= find_field(event
, "fmt");
2269 die("can't find format field for binary printk");
2270 printf("field->offset = %d size=%d\n", field
->offset
, field
->size
);
2273 addr
= read_size(data
+ field
->offset
, field
->size
);
2275 printk
= find_printk(addr
);
2277 format
= malloc_or_die(45);
2278 sprintf(format
, "%%pf : (NO FORMAT FOUND at %llx)\n",
2284 /* Remove any quotes. */
2287 format
= malloc_or_die(strlen(p
) + 10);
2288 sprintf(format
, "%s : %s", "%pf", p
);
2289 /* remove ending quotes and new line since we will add one too */
2290 p
= format
+ strlen(format
) - 1;
2295 if (strcmp(p
, "\\n") == 0)
2301 static void pretty_print(void *data
, int size
, struct event
*event
)
2303 struct print_fmt
*print_fmt
= &event
->print_fmt
;
2304 struct print_arg
*arg
= print_fmt
->args
;
2305 struct print_arg
*args
= NULL
;
2306 const char *ptr
= print_fmt
->format
;
2307 unsigned long long val
;
2308 struct func_map
*func
;
2309 const char *saveptr
;
2310 char *bprint_fmt
= NULL
;
2316 if (event
->flags
& EVENT_FL_ISFUNC
)
2317 ptr
= " %pF <-- %pF";
2319 if (event
->flags
& EVENT_FL_ISBPRINT
) {
2320 bprint_fmt
= get_bprint_format(data
, size
, event
);
2321 args
= make_bprint_args(bprint_fmt
, data
, size
, event
);
2326 for (; *ptr
; ptr
++) {
2353 if (*(ptr
+1) == 'F' ||
2366 die("no argument match");
2368 len
= ((unsigned long)ptr
+ 1) -
2369 (unsigned long)saveptr
;
2371 /* should never happen */
2375 memcpy(format
, saveptr
, len
);
2378 val
= eval_num_arg(data
, size
, event
, arg
);
2382 func
= find_func(val
);
2384 printf("%s", func
->func
);
2385 if (show_func
== 'F')
2393 printf(format
, (int)val
);
2396 printf(format
, (long)val
);
2399 printf(format
, (long long)val
);
2402 die("bad count (%d)", ls
);
2407 die("no matching argument");
2409 print_str_arg(data
, size
, event
, arg
);
2413 printf(">%c<", *ptr
);
2426 static inline int log10_cpu(int nb
)
2435 /* taken from Linux, written by Frederic Weisbecker */
2436 static void print_graph_cpu(int cpu
)
2439 int log10_this
= log10_cpu(cpu
);
2440 int log10_all
= log10_cpu(cpus
);
2444 * Start with a space character - to make it stand out
2445 * to the right a bit when trace output is pasted into
2451 * Tricky - we space the CPU field according to the max
2452 * number of online CPUs. On a 2-cpu system it would take
2453 * a maximum of 1 digit - on a 128 cpu system it would
2454 * take up to 3 digits:
2456 for (i
= 0; i
< log10_all
- log10_this
; i
++)
2459 printf("%d) ", cpu
);
2462 #define TRACE_GRAPH_PROCINFO_LENGTH 14
2463 #define TRACE_GRAPH_INDENT 2
2465 static void print_graph_proc(int pid
, const char *comm
)
2467 /* sign + log10(MAX_INT) + '\0' */
2473 sprintf(pid_str
, "%d", pid
);
2475 /* 1 stands for the "-" character */
2476 len
= strlen(comm
) + strlen(pid_str
) + 1;
2478 if (len
< TRACE_GRAPH_PROCINFO_LENGTH
)
2479 spaces
= TRACE_GRAPH_PROCINFO_LENGTH
- len
;
2481 /* First spaces to align center */
2482 for (i
= 0; i
< spaces
/ 2; i
++)
2485 printf("%s-%s", comm
, pid_str
);
2487 /* Last spaces to align center */
2488 for (i
= 0; i
< spaces
- (spaces
/ 2); i
++)
2492 static struct record
*
2493 get_return_for_leaf(int cpu
, int cur_pid
, unsigned long long cur_func
,
2494 struct record
*next
)
2496 struct format_field
*field
;
2497 struct event
*event
;
2502 type
= trace_parse_common_type(next
->data
);
2503 event
= trace_find_event(type
);
2507 if (!(event
->flags
& EVENT_FL_ISFUNCRET
))
2510 pid
= parse_common_pid(next
->data
);
2511 field
= find_field(event
, "func");
2513 die("function return does not have field func");
2515 val
= read_size(next
->data
+ field
->offset
, field
->size
);
2517 if (cur_pid
!= pid
|| cur_func
!= val
)
2520 /* this is a leaf, now advance the iterator */
2521 return trace_read_data(cpu
);
2524 /* Signal a overhead of time execution to the output */
2525 static void print_graph_overhead(unsigned long long duration
)
2527 /* Non nested entry or return */
2528 if (duration
== ~0ULL)
2529 return (void)printf(" ");
2531 /* Duration exceeded 100 msecs */
2532 if (duration
> 100000ULL)
2533 return (void)printf("! ");
2535 /* Duration exceeded 10 msecs */
2536 if (duration
> 10000ULL)
2537 return (void)printf("+ ");
2542 static void print_graph_duration(unsigned long long duration
)
2544 unsigned long usecs
= duration
/ 1000;
2545 unsigned long nsecs_rem
= duration
% 1000;
2546 /* log10(ULONG_MAX) + '\0' */
2552 sprintf(msecs_str
, "%lu", usecs
);
2555 len
= printf("%lu", usecs
);
2557 /* Print nsecs (we don't want to exceed 7 numbers) */
2559 snprintf(nsecs_str
, 8 - len
, "%03lu", nsecs_rem
);
2560 len
+= printf(".%s", nsecs_str
);
2565 /* Print remaining spaces to fit the row's width */
2566 for (i
= len
; i
< 7; i
++)
2573 print_graph_entry_leaf(struct event
*event
, void *data
, struct record
*ret_rec
)
2575 unsigned long long rettime
, calltime
;
2576 unsigned long long duration
, depth
;
2577 unsigned long long val
;
2578 struct format_field
*field
;
2579 struct func_map
*func
;
2580 struct event
*ret_event
;
2584 type
= trace_parse_common_type(ret_rec
->data
);
2585 ret_event
= trace_find_event(type
);
2587 field
= find_field(ret_event
, "rettime");
2589 die("can't find rettime in return graph");
2590 rettime
= read_size(ret_rec
->data
+ field
->offset
, field
->size
);
2592 field
= find_field(ret_event
, "calltime");
2594 die("can't find rettime in return graph");
2595 calltime
= read_size(ret_rec
->data
+ field
->offset
, field
->size
);
2597 duration
= rettime
- calltime
;
2600 print_graph_overhead(duration
);
2603 print_graph_duration(duration
);
2605 field
= find_field(event
, "depth");
2607 die("can't find depth in entry graph");
2608 depth
= read_size(data
+ field
->offset
, field
->size
);
2611 for (i
= 0; i
< (int)(depth
* TRACE_GRAPH_INDENT
); i
++)
2614 field
= find_field(event
, "func");
2616 die("can't find func in entry graph");
2617 val
= read_size(data
+ field
->offset
, field
->size
);
2618 func
= find_func(val
);
2621 printf("%s();", func
->func
);
2623 printf("%llx();", val
);
2626 static void print_graph_nested(struct event
*event
, void *data
)
2628 struct format_field
*field
;
2629 unsigned long long depth
;
2630 unsigned long long val
;
2631 struct func_map
*func
;
2635 print_graph_overhead(-1);
2640 field
= find_field(event
, "depth");
2642 die("can't find depth in entry graph");
2643 depth
= read_size(data
+ field
->offset
, field
->size
);
2646 for (i
= 0; i
< (int)(depth
* TRACE_GRAPH_INDENT
); i
++)
2649 field
= find_field(event
, "func");
2651 die("can't find func in entry graph");
2652 val
= read_size(data
+ field
->offset
, field
->size
);
2653 func
= find_func(val
);
2656 printf("%s() {", func
->func
);
2658 printf("%llx() {", val
);
2662 pretty_print_func_ent(void *data
, int size
, struct event
*event
,
2663 int cpu
, int pid
, const char *comm
,
2664 unsigned long secs
, unsigned long usecs
)
2666 struct format_field
*field
;
2671 printf("%5lu.%06lu | ", secs
, usecs
);
2673 print_graph_cpu(cpu
);
2674 print_graph_proc(pid
, comm
);
2678 field
= find_field(event
, "func");
2680 die("function entry does not have func field");
2682 val
= read_size(data
+ field
->offset
, field
->size
);
2685 * peek_data may unmap the data pointer. Copy it first.
2687 copy_data
= malloc_or_die(size
);
2688 memcpy(copy_data
, data
, size
);
2691 rec
= trace_peek_data(cpu
);
2693 rec
= get_return_for_leaf(cpu
, pid
, val
, rec
);
2695 print_graph_entry_leaf(event
, data
, rec
);
2699 print_graph_nested(event
, data
);
2705 pretty_print_func_ret(void *data
, int size __unused
, struct event
*event
,
2706 int cpu
, int pid
, const char *comm
,
2707 unsigned long secs
, unsigned long usecs
)
2709 unsigned long long rettime
, calltime
;
2710 unsigned long long duration
, depth
;
2711 struct format_field
*field
;
2714 printf("%5lu.%06lu | ", secs
, usecs
);
2716 print_graph_cpu(cpu
);
2717 print_graph_proc(pid
, comm
);
2721 field
= find_field(event
, "rettime");
2723 die("can't find rettime in return graph");
2724 rettime
= read_size(data
+ field
->offset
, field
->size
);
2726 field
= find_field(event
, "calltime");
2728 die("can't find calltime in return graph");
2729 calltime
= read_size(data
+ field
->offset
, field
->size
);
2731 duration
= rettime
- calltime
;
2734 print_graph_overhead(duration
);
2737 print_graph_duration(duration
);
2739 field
= find_field(event
, "depth");
2741 die("can't find depth in entry graph");
2742 depth
= read_size(data
+ field
->offset
, field
->size
);
2745 for (i
= 0; i
< (int)(depth
* TRACE_GRAPH_INDENT
); i
++)
2752 pretty_print_func_graph(void *data
, int size
, struct event
*event
,
2753 int cpu
, int pid
, const char *comm
,
2754 unsigned long secs
, unsigned long usecs
)
2756 if (event
->flags
& EVENT_FL_ISFUNCENT
)
2757 pretty_print_func_ent(data
, size
, event
,
2758 cpu
, pid
, comm
, secs
, usecs
);
2759 else if (event
->flags
& EVENT_FL_ISFUNCRET
)
2760 pretty_print_func_ret(data
, size
, event
,
2761 cpu
, pid
, comm
, secs
, usecs
);
2765 void print_event(int cpu
, void *data
, int size
, unsigned long long nsecs
,
2768 struct event
*event
;
2770 unsigned long usecs
;
2774 secs
= nsecs
/ NSECS_PER_SEC
;
2775 nsecs
-= secs
* NSECS_PER_SEC
;
2776 usecs
= nsecs
/ NSECS_PER_USEC
;
2778 type
= trace_parse_common_type(data
);
2780 event
= trace_find_event(type
);
2782 printf("ug! no event found for type %d\n", type
);
2786 pid
= parse_common_pid(data
);
2788 if (event
->flags
& (EVENT_FL_ISFUNCENT
| EVENT_FL_ISFUNCRET
))
2789 return pretty_print_func_graph(data
, size
, event
, cpu
,
2790 pid
, comm
, secs
, usecs
);
2792 printf("%16s-%-5d [%03d] %5lu.%09Lu: %s: ",
2794 secs
, nsecs
, event
->name
);
2796 pretty_print(data
, size
, event
);
2800 static void print_fields(struct print_flag_sym
*field
)
2802 printf("{ %s, %s }", field
->value
, field
->str
);
2805 print_fields(field
->next
);
2809 static void print_args(struct print_arg
*args
)
2811 int print_paren
= 1;
2813 switch (args
->type
) {
2818 printf("%s", args
->atom
.atom
);
2821 printf("REC->%s", args
->field
.name
);
2824 printf("__print_flags(");
2825 print_args(args
->flags
.field
);
2826 printf(", %s, ", args
->flags
.delim
);
2827 print_fields(args
->flags
.flags
);
2831 printf("__print_symbolic(");
2832 print_args(args
->symbol
.field
);
2834 print_fields(args
->symbol
.symbols
);
2838 printf("__get_str(%s)", args
->string
.string
);
2841 printf("(%s)", args
->typecast
.type
);
2842 print_args(args
->typecast
.item
);
2845 if (strcmp(args
->op
.op
, ":") == 0)
2849 print_args(args
->op
.left
);
2850 printf(" %s ", args
->op
.op
);
2851 print_args(args
->op
.right
);
2856 /* we should warn... */
2861 print_args(args
->next
);
2865 static void parse_header_field(char *type
,
2866 int *offset
, int *size
)
2870 if (read_expected(EVENT_ITEM
, (char *)"field") < 0)
2872 if (read_expected(EVENT_OP
, (char *)":") < 0)
2875 if (read_expect_type(EVENT_ITEM
, &token
) < 0)
2879 if (read_expected(EVENT_ITEM
, type
) < 0)
2881 if (read_expected(EVENT_OP
, (char *)";") < 0)
2883 if (read_expected(EVENT_ITEM
, (char *)"offset") < 0)
2885 if (read_expected(EVENT_OP
, (char *)":") < 0)
2887 if (read_expect_type(EVENT_ITEM
, &token
) < 0)
2889 *offset
= atoi(token
);
2891 if (read_expected(EVENT_OP
, (char *)";") < 0)
2893 if (read_expected(EVENT_ITEM
, (char *)"size") < 0)
2895 if (read_expected(EVENT_OP
, (char *)":") < 0)
2897 if (read_expect_type(EVENT_ITEM
, &token
) < 0)
2899 *size
= atoi(token
);
2901 if (read_expected(EVENT_OP
, (char *)";") < 0)
2903 if (read_expected(EVENT_ITEM
, (char *)"signed") < 0)
2905 if (read_expected(EVENT_OP
, (char *)":") < 0)
2907 if (read_expect_type(EVENT_ITEM
, &token
) < 0)
2910 if (read_expected(EVENT_OP
, (char *)";") < 0)
2912 if (read_expect_type(EVENT_NEWLINE
, &token
) < 0)
2917 int parse_header_page(char *buf
, unsigned long size
)
2919 init_input_buf(buf
, size
);
2921 parse_header_field((char *)"timestamp", &header_page_ts_offset
,
2922 &header_page_ts_size
);
2923 parse_header_field((char *)"commit", &header_page_size_offset
,
2924 &header_page_size_size
);
2925 parse_header_field((char *)"data", &header_page_data_offset
,
2926 &header_page_data_size
);
2931 int parse_ftrace_file(char *buf
, unsigned long size
)
2933 struct format_field
*field
;
2934 struct print_arg
*arg
, **list
;
2935 struct event
*event
;
2938 init_input_buf(buf
, size
);
2940 event
= alloc_event();
2944 event
->flags
|= EVENT_FL_ISFTRACE
;
2946 event
->name
= event_read_name();
2948 die("failed to read ftrace event name");
2950 if (strcmp(event
->name
, "function") == 0)
2951 event
->flags
|= EVENT_FL_ISFUNC
;
2953 else if (strcmp(event
->name
, "funcgraph_entry") == 0)
2954 event
->flags
|= EVENT_FL_ISFUNCENT
;
2956 else if (strcmp(event
->name
, "funcgraph_exit") == 0)
2957 event
->flags
|= EVENT_FL_ISFUNCRET
;
2959 else if (strcmp(event
->name
, "bprint") == 0)
2960 event
->flags
|= EVENT_FL_ISBPRINT
;
2962 event
->id
= event_read_id();
2964 die("failed to read ftrace event id");
2968 ret
= event_read_format(event
);
2970 die("failed to read ftrace event format");
2972 ret
= event_read_print(event
);
2974 die("failed to read ftrace event print fmt");
2977 * The arguments for ftrace files are parsed by the fields.
2978 * Set up the fields as their arguments.
2980 list
= &event
->print_fmt
.args
;
2981 for (field
= event
->format
.fields
; field
; field
= field
->next
) {
2982 arg
= malloc_or_die(sizeof(*arg
));
2983 memset(arg
, 0, sizeof(*arg
));
2986 arg
->type
= PRINT_FIELD
;
2987 arg
->field
.name
= field
->name
;
2988 arg
->field
.field
= field
;
2993 int parse_event_file(char *buf
, unsigned long size
, char *sys
)
2995 struct event
*event
;
2998 init_input_buf(buf
, size
);
3000 event
= alloc_event();
3004 event
->name
= event_read_name();
3006 die("failed to read event name");
3008 event
->id
= event_read_id();
3010 die("failed to read event id");
3012 ret
= event_read_format(event
);
3014 die("failed to read event format");
3016 ret
= event_read_print(event
);
3018 die("failed to read event print fmt");
3020 event
->system
= strdup(sys
);
3022 #define PRINT_ARGS 0
3023 if (PRINT_ARGS
&& event
->print_fmt
.args
)
3024 print_args(event
->print_fmt
.args
);
3030 void parse_set_info(int nr_cpus
, int long_sz
)
3033 long_size
= long_sz
;