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