tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __PERF_TRACE_EVENTS_H
2#define __PERF_TRACE_EVENTS_H
3
4#include <stdbool.h>
5#include "parse-events.h"
6#include "session.h"
7
8#define __unused __attribute__((unused))
9
10
11#ifndef PAGE_MASK
12#define PAGE_MASK (page_size - 1)
13#endif
14
15enum {
16 RINGBUF_TYPE_PADDING = 29,
17 RINGBUF_TYPE_TIME_EXTEND = 30,
18 RINGBUF_TYPE_TIME_STAMP = 31,
19};
20
21#ifndef TS_SHIFT
22#define TS_SHIFT 27
23#endif
24
25#define NSECS_PER_SEC 1000000000ULL
26#define NSECS_PER_USEC 1000ULL
27
28enum format_flags {
29 FIELD_IS_ARRAY = 1,
30 FIELD_IS_POINTER = 2,
31 FIELD_IS_SIGNED = 4,
32 FIELD_IS_STRING = 8,
33 FIELD_IS_DYNAMIC = 16,
34 FIELD_IS_FLAG = 32,
35 FIELD_IS_SYMBOLIC = 64,
36};
37
38struct format_field {
39 struct format_field *next;
40 char *type;
41 char *name;
42 int offset;
43 int size;
44 unsigned long flags;
45};
46
47struct format {
48 int nr_common;
49 int nr_fields;
50 struct format_field *common_fields;
51 struct format_field *fields;
52};
53
54struct print_arg_atom {
55 char *atom;
56};
57
58struct print_arg_string {
59 char *string;
60 int offset;
61};
62
63struct print_arg_field {
64 char *name;
65 struct format_field *field;
66};
67
68struct print_flag_sym {
69 struct print_flag_sym *next;
70 char *value;
71 char *str;
72};
73
74struct print_arg_typecast {
75 char *type;
76 struct print_arg *item;
77};
78
79struct print_arg_flags {
80 struct print_arg *field;
81 char *delim;
82 struct print_flag_sym *flags;
83};
84
85struct print_arg_symbol {
86 struct print_arg *field;
87 struct print_flag_sym *symbols;
88};
89
90struct print_arg;
91
92struct print_arg_op {
93 char *op;
94 int prio;
95 struct print_arg *left;
96 struct print_arg *right;
97};
98
99struct print_arg_func {
100 char *name;
101 struct print_arg *args;
102};
103
104enum print_arg_type {
105 PRINT_NULL,
106 PRINT_ATOM,
107 PRINT_FIELD,
108 PRINT_FLAGS,
109 PRINT_SYMBOL,
110 PRINT_TYPE,
111 PRINT_STRING,
112 PRINT_OP,
113};
114
115struct print_arg {
116 struct print_arg *next;
117 enum print_arg_type type;
118 union {
119 struct print_arg_atom atom;
120 struct print_arg_field field;
121 struct print_arg_typecast typecast;
122 struct print_arg_flags flags;
123 struct print_arg_symbol symbol;
124 struct print_arg_func func;
125 struct print_arg_string string;
126 struct print_arg_op op;
127 };
128};
129
130struct print_fmt {
131 char *format;
132 struct print_arg *args;
133};
134
135struct event {
136 struct event *next;
137 char *name;
138 int id;
139 int flags;
140 struct format format;
141 struct print_fmt print_fmt;
142 char *system;
143};
144
145enum {
146 EVENT_FL_ISFTRACE = 0x01,
147 EVENT_FL_ISPRINT = 0x02,
148 EVENT_FL_ISBPRINT = 0x04,
149 EVENT_FL_ISFUNC = 0x08,
150 EVENT_FL_ISFUNCENT = 0x10,
151 EVENT_FL_ISFUNCRET = 0x20,
152
153 EVENT_FL_FAILED = 0x80000000
154};
155
156struct record {
157 unsigned long long ts;
158 int size;
159 void *data;
160};
161
162struct record *trace_peek_data(int cpu);
163struct record *trace_read_data(int cpu);
164
165void parse_set_info(int nr_cpus, int long_sz);
166
167ssize_t trace_report(int fd, bool repipe);
168
169void *malloc_or_die(unsigned int size);
170
171void parse_cmdlines(char *file, int size);
172void parse_proc_kallsyms(char *file, unsigned int size);
173void parse_ftrace_printk(char *file, unsigned int size);
174
175void print_funcs(void);
176void print_printk(void);
177
178int parse_ftrace_file(char *buf, unsigned long size);
179int parse_event_file(char *buf, unsigned long size, char *sys);
180void print_trace_event(int cpu, void *data, int size);
181
182extern int file_bigendian;
183extern int host_bigendian;
184
185int bigendian(void);
186
187static inline unsigned short __data2host2(unsigned short data)
188{
189 unsigned short swap;
190
191 if (host_bigendian == file_bigendian)
192 return data;
193
194 swap = ((data & 0xffULL) << 8) |
195 ((data & (0xffULL << 8)) >> 8);
196
197 return swap;
198}
199
200static inline unsigned int __data2host4(unsigned int data)
201{
202 unsigned int swap;
203
204 if (host_bigendian == file_bigendian)
205 return data;
206
207 swap = ((data & 0xffULL) << 24) |
208 ((data & (0xffULL << 8)) << 8) |
209 ((data & (0xffULL << 16)) >> 8) |
210 ((data & (0xffULL << 24)) >> 24);
211
212 return swap;
213}
214
215static inline unsigned long long __data2host8(unsigned long long data)
216{
217 unsigned long long swap;
218
219 if (host_bigendian == file_bigendian)
220 return data;
221
222 swap = ((data & 0xffULL) << 56) |
223 ((data & (0xffULL << 8)) << 40) |
224 ((data & (0xffULL << 16)) << 24) |
225 ((data & (0xffULL << 24)) << 8) |
226 ((data & (0xffULL << 32)) >> 8) |
227 ((data & (0xffULL << 40)) >> 24) |
228 ((data & (0xffULL << 48)) >> 40) |
229 ((data & (0xffULL << 56)) >> 56);
230
231 return swap;
232}
233
234#define data2host2(ptr) __data2host2(*(unsigned short *)ptr)
235#define data2host4(ptr) __data2host4(*(unsigned int *)ptr)
236#define data2host8(ptr) ({ \
237 unsigned long long __val; \
238 \
239 memcpy(&__val, (ptr), sizeof(unsigned long long)); \
240 __data2host8(__val); \
241})
242
243extern int header_page_ts_offset;
244extern int header_page_ts_size;
245extern int header_page_size_offset;
246extern int header_page_size_size;
247extern int header_page_data_offset;
248extern int header_page_data_size;
249
250extern bool latency_format;
251
252int trace_parse_common_type(void *data);
253int trace_parse_common_pid(void *data);
254int parse_common_pc(void *data);
255int parse_common_flags(void *data);
256int parse_common_lock_depth(void *data);
257struct event *trace_find_event(int id);
258struct event *trace_find_next_event(struct event *event);
259unsigned long long read_size(void *ptr, int size);
260unsigned long long
261raw_field_value(struct event *event, const char *name, void *data);
262void *raw_field_ptr(struct event *event, const char *name, void *data);
263unsigned long long eval_flag(const char *flag);
264
265int read_tracing_data(int fd, struct list_head *pattrs);
266ssize_t read_tracing_data_size(int fd, struct list_head *pattrs);
267
268/* taken from kernel/trace/trace.h */
269enum trace_flag_type {
270 TRACE_FLAG_IRQS_OFF = 0x01,
271 TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
272 TRACE_FLAG_NEED_RESCHED = 0x04,
273 TRACE_FLAG_HARDIRQ = 0x08,
274 TRACE_FLAG_SOFTIRQ = 0x10,
275};
276
277struct scripting_ops {
278 const char *name;
279 int (*start_script) (const char *script, int argc, const char **argv);
280 int (*stop_script) (void);
281 void (*process_event) (union perf_event *event,
282 struct perf_sample *sample,
283 struct perf_evsel *evsel,
284 struct perf_session *session,
285 struct thread *thread);
286 int (*generate_script) (const char *outfile);
287};
288
289int script_spec_register(const char *spec, struct scripting_ops *ops);
290
291void setup_perl_scripting(void);
292void setup_python_scripting(void);
293
294struct scripting_context {
295 void *event_data;
296};
297
298int common_pc(struct scripting_context *context);
299int common_flags(struct scripting_context *context);
300int common_lock_depth(struct scripting_context *context);
301
302#endif /* __PERF_TRACE_EVENTS_H */