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Linux kernel mirror (for testing)
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kernel
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linux
1#ifndef _TRACE_EVENTS_H
2#define _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};
30
31struct format_field {
32 struct format_field *next;
33 char *type;
34 char *name;
35 int offset;
36 int size;
37 unsigned long flags;
38};
39
40struct format {
41 int nr_common;
42 int nr_fields;
43 struct format_field *common_fields;
44 struct format_field *fields;
45};
46
47struct print_arg_atom {
48 char *atom;
49};
50
51struct print_arg_string {
52 char *string;
53 int offset;
54};
55
56struct print_arg_field {
57 char *name;
58 struct format_field *field;
59};
60
61struct print_flag_sym {
62 struct print_flag_sym *next;
63 char *value;
64 char *str;
65};
66
67struct print_arg_typecast {
68 char *type;
69 struct print_arg *item;
70};
71
72struct print_arg_flags {
73 struct print_arg *field;
74 char *delim;
75 struct print_flag_sym *flags;
76};
77
78struct print_arg_symbol {
79 struct print_arg *field;
80 struct print_flag_sym *symbols;
81};
82
83struct print_arg;
84
85struct print_arg_op {
86 char *op;
87 int prio;
88 struct print_arg *left;
89 struct print_arg *right;
90};
91
92struct print_arg_func {
93 char *name;
94 struct print_arg *args;
95};
96
97enum print_arg_type {
98 PRINT_NULL,
99 PRINT_ATOM,
100 PRINT_FIELD,
101 PRINT_FLAGS,
102 PRINT_SYMBOL,
103 PRINT_TYPE,
104 PRINT_STRING,
105 PRINT_OP,
106};
107
108struct print_arg {
109 struct print_arg *next;
110 enum print_arg_type type;
111 union {
112 struct print_arg_atom atom;
113 struct print_arg_field field;
114 struct print_arg_typecast typecast;
115 struct print_arg_flags flags;
116 struct print_arg_symbol symbol;
117 struct print_arg_func func;
118 struct print_arg_string string;
119 struct print_arg_op op;
120 };
121};
122
123struct print_fmt {
124 char *format;
125 struct print_arg *args;
126};
127
128struct event {
129 struct event *next;
130 char *name;
131 int id;
132 int flags;
133 struct format format;
134 struct print_fmt print_fmt;
135};
136
137enum {
138 EVENT_FL_ISFTRACE = 1,
139 EVENT_FL_ISPRINT = 2,
140 EVENT_FL_ISBPRINT = 4,
141 EVENT_FL_ISFUNC = 8,
142 EVENT_FL_ISFUNCENT = 16,
143 EVENT_FL_ISFUNCRET = 32,
144};
145
146struct record {
147 unsigned long long ts;
148 int size;
149 void *data;
150};
151
152struct record *trace_peek_data(int cpu);
153struct record *trace_read_data(int cpu);
154
155void parse_set_info(int nr_cpus, int long_sz);
156
157void trace_report(void);
158
159void *malloc_or_die(unsigned int size);
160
161void parse_cmdlines(char *file, int size);
162void parse_proc_kallsyms(char *file, unsigned int size);
163void parse_ftrace_printk(char *file, unsigned int size);
164
165void print_funcs(void);
166void print_printk(void);
167
168int parse_ftrace_file(char *buf, unsigned long size);
169int parse_event_file(char *buf, unsigned long size, char *system);
170void print_event(int cpu, void *data, int size, unsigned long long nsecs,
171 char *comm);
172
173extern int file_bigendian;
174extern int host_bigendian;
175
176int bigendian(void);
177
178static inline unsigned short __data2host2(unsigned short data)
179{
180 unsigned short swap;
181
182 if (host_bigendian == file_bigendian)
183 return data;
184
185 swap = ((data & 0xffULL) << 8) |
186 ((data & (0xffULL << 8)) >> 8);
187
188 return swap;
189}
190
191static inline unsigned int __data2host4(unsigned int data)
192{
193 unsigned int swap;
194
195 if (host_bigendian == file_bigendian)
196 return data;
197
198 swap = ((data & 0xffULL) << 24) |
199 ((data & (0xffULL << 8)) << 8) |
200 ((data & (0xffULL << 16)) >> 8) |
201 ((data & (0xffULL << 24)) >> 24);
202
203 return swap;
204}
205
206static inline unsigned long long __data2host8(unsigned long long data)
207{
208 unsigned long long swap;
209
210 if (host_bigendian == file_bigendian)
211 return data;
212
213 swap = ((data & 0xffULL) << 56) |
214 ((data & (0xffULL << 8)) << 40) |
215 ((data & (0xffULL << 16)) << 24) |
216 ((data & (0xffULL << 24)) << 8) |
217 ((data & (0xffULL << 32)) >> 8) |
218 ((data & (0xffULL << 40)) >> 24) |
219 ((data & (0xffULL << 48)) >> 40) |
220 ((data & (0xffULL << 56)) >> 56);
221
222 return swap;
223}
224
225#define data2host2(ptr) __data2host2(*(unsigned short *)ptr)
226#define data2host4(ptr) __data2host4(*(unsigned int *)ptr)
227#define data2host8(ptr) __data2host8(*(unsigned long long *)ptr)
228
229extern int header_page_ts_offset;
230extern int header_page_ts_size;
231extern int header_page_size_offset;
232extern int header_page_size_size;
233extern int header_page_data_offset;
234extern int header_page_data_size;
235
236int parse_header_page(char *buf, unsigned long size);
237int trace_parse_common_type(void *data);
238struct event *trace_find_event(int id);
239unsigned long long
240raw_field_value(struct event *event, const char *name, void *data);
241void *raw_field_ptr(struct event *event, const char *name, void *data);
242
243void read_tracing_data(struct perf_event_attr *pattrs, int nb_events);
244
245#endif /* _TRACE_EVENTS_H */