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aaf045f7 SR |
1 | /* |
2 | * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com> | |
3 | * | |
4 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
5 | * | |
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!) | |
9 | * | |
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. | |
14 | * | |
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 | |
18 | * | |
19 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
20 | */ | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <ctype.h> | |
25 | #include <errno.h> | |
26 | ||
1ef2ed10 | 27 | #include "../perf.h" |
ea4010d1 SR |
28 | #include "util.h" |
29 | #include "trace-event.h" | |
30 | ||
aaf045f7 SR |
31 | static int get_common_field(struct scripting_context *context, |
32 | int *offset, int *size, const char *type) | |
7397d80d | 33 | { |
da378962 | 34 | struct pevent *pevent = context->pevent; |
aaf045f7 SR |
35 | struct event_format *event; |
36 | struct format_field *field; | |
37 | ||
38 | if (!*size) { | |
39 | if (!pevent->events) | |
40 | return 0; | |
41 | ||
42 | event = pevent->events[0]; | |
43 | field = pevent_find_common_field(event, type); | |
44 | if (!field) | |
45 | return 0; | |
46 | *offset = field->offset; | |
47 | *size = field->size; | |
48 | } | |
49 | ||
50 | return pevent_read_number(pevent, context->event_data + *offset, *size); | |
7397d80d TZ |
51 | } |
52 | ||
53 | int common_lock_depth(struct scripting_context *context) | |
54 | { | |
aaf045f7 SR |
55 | static int offset; |
56 | static int size; | |
57 | int ret; | |
58 | ||
59 | ret = get_common_field(context, &size, &offset, | |
60 | "common_lock_depth"); | |
61 | if (ret < 0) | |
62 | return -1; | |
63 | ||
64 | return ret; | |
65 | } | |
66 | ||
67 | int common_flags(struct scripting_context *context) | |
68 | { | |
69 | static int offset; | |
70 | static int size; | |
71 | int ret; | |
72 | ||
73 | ret = get_common_field(context, &size, &offset, | |
74 | "common_flags"); | |
75 | if (ret < 0) | |
76 | return -1; | |
77 | ||
78 | return ret; | |
79 | } | |
80 | ||
81 | int common_pc(struct scripting_context *context) | |
82 | { | |
83 | static int offset; | |
84 | static int size; | |
85 | int ret; | |
86 | ||
87 | ret = get_common_field(context, &size, &offset, | |
88 | "common_preempt_count"); | |
89 | if (ret < 0) | |
90 | return -1; | |
91 | ||
92 | return ret; | |
93 | } | |
94 | ||
95 | unsigned long long | |
96 | raw_field_value(struct event_format *event, const char *name, void *data) | |
97 | { | |
98 | struct format_field *field; | |
99 | unsigned long long val; | |
100 | ||
101 | field = pevent_find_any_field(event, name); | |
102 | if (!field) | |
103 | return 0ULL; | |
104 | ||
105 | pevent_read_number_field(field, data, &val); | |
106 | ||
107 | return val; | |
108 | } | |
109 | ||
97822433 | 110 | unsigned long long read_size(struct event_format *event, void *ptr, int size) |
aaf045f7 | 111 | { |
97822433 | 112 | return pevent_read_number(event->pevent, ptr, size); |
aaf045f7 SR |
113 | } |
114 | ||
aa1aac17 ACM |
115 | void event_format__fprintf(struct event_format *event, |
116 | int cpu, void *data, int size, FILE *fp) | |
aaf045f7 | 117 | { |
1c698186 | 118 | struct pevent_record record; |
aaf045f7 | 119 | struct trace_seq s; |
aaf045f7 SR |
120 | |
121 | memset(&record, 0, sizeof(record)); | |
122 | record.cpu = cpu; | |
123 | record.size = size; | |
124 | record.data = data; | |
125 | ||
126 | trace_seq_init(&s); | |
76a8349d | 127 | pevent_event_info(&s, event, &record); |
aa1aac17 | 128 | trace_seq_do_fprintf(&s, fp); |
b58f608e | 129 | trace_seq_destroy(&s); |
aaf045f7 SR |
130 | } |
131 | ||
aa1aac17 ACM |
132 | void event_format__print(struct event_format *event, |
133 | int cpu, void *data, int size) | |
134 | { | |
135 | return event_format__fprintf(event, cpu, data, size, stdout); | |
136 | } | |
137 | ||
da378962 | 138 | void parse_ftrace_printk(struct pevent *pevent, |
1d037ca1 | 139 | char *file, unsigned int size __maybe_unused) |
aaf045f7 SR |
140 | { |
141 | unsigned long long addr; | |
142 | char *printk; | |
143 | char *line; | |
144 | char *next = NULL; | |
145 | char *addr_str; | |
5bcaaca3 | 146 | char *fmt = NULL; |
aaf045f7 SR |
147 | |
148 | line = strtok_r(file, "\n", &next); | |
149 | while (line) { | |
150 | addr_str = strtok_r(line, ":", &fmt); | |
151 | if (!addr_str) { | |
152 | warning("printk format with empty entry"); | |
153 | break; | |
154 | } | |
155 | addr = strtoull(addr_str, NULL, 16); | |
156 | /* fmt still has a space, skip it */ | |
157 | printk = strdup(fmt+1); | |
158 | line = strtok_r(NULL, "\n", &next); | |
159 | pevent_register_print_string(pevent, printk, addr); | |
160 | } | |
161 | } | |
162 | ||
da378962 | 163 | int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size) |
aaf045f7 SR |
164 | { |
165 | return pevent_parse_event(pevent, buf, size, "ftrace"); | |
166 | } | |
167 | ||
da378962 ACM |
168 | int parse_event_file(struct pevent *pevent, |
169 | char *buf, unsigned long size, char *sys) | |
aaf045f7 SR |
170 | { |
171 | return pevent_parse_event(pevent, buf, size, sys); | |
172 | } | |
173 | ||
da378962 ACM |
174 | struct event_format *trace_find_next_event(struct pevent *pevent, |
175 | struct event_format *event) | |
aaf045f7 SR |
176 | { |
177 | static int idx; | |
178 | ||
d0d39138 | 179 | if (!pevent || !pevent->events) |
aaf045f7 SR |
180 | return NULL; |
181 | ||
182 | if (!event) { | |
183 | idx = 0; | |
184 | return pevent->events[0]; | |
185 | } | |
186 | ||
187 | if (idx < pevent->nr_events && event == pevent->events[idx]) { | |
188 | idx++; | |
189 | if (idx == pevent->nr_events) | |
190 | return NULL; | |
191 | return pevent->events[idx]; | |
192 | } | |
193 | ||
194 | for (idx = 1; idx < pevent->nr_events; idx++) { | |
195 | if (event == pevent->events[idx - 1]) | |
196 | return pevent->events[idx]; | |
197 | } | |
198 | return NULL; | |
199 | } | |
200 | ||
201 | struct flag { | |
202 | const char *name; | |
203 | unsigned long long value; | |
204 | }; | |
205 | ||
206 | static const struct flag flags[] = { | |
207 | { "HI_SOFTIRQ", 0 }, | |
208 | { "TIMER_SOFTIRQ", 1 }, | |
209 | { "NET_TX_SOFTIRQ", 2 }, | |
210 | { "NET_RX_SOFTIRQ", 3 }, | |
211 | { "BLOCK_SOFTIRQ", 4 }, | |
511cbce2 | 212 | { "IRQ_POLL_SOFTIRQ", 5 }, |
aaf045f7 SR |
213 | { "TASKLET_SOFTIRQ", 6 }, |
214 | { "SCHED_SOFTIRQ", 7 }, | |
215 | { "HRTIMER_SOFTIRQ", 8 }, | |
216 | { "RCU_SOFTIRQ", 9 }, | |
217 | ||
218 | { "HRTIMER_NORESTART", 0 }, | |
219 | { "HRTIMER_RESTART", 1 }, | |
220 | }; | |
221 | ||
222 | unsigned long long eval_flag(const char *flag) | |
223 | { | |
224 | int i; | |
225 | ||
226 | /* | |
227 | * Some flags in the format files do not get converted. | |
228 | * If the flag is not numeric, see if it is something that | |
229 | * we already know about. | |
230 | */ | |
231 | if (isdigit(flag[0])) | |
232 | return strtoull(flag, NULL, 0); | |
233 | ||
234 | for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) | |
235 | if (strcmp(flags[i].name, flag) == 0) | |
236 | return flags[i].value; | |
237 | ||
238 | return 0; | |
7397d80d | 239 | } |