4 #include <linux/compiler.h>
7 #include "namespaces.h"
9 /* Probe related configurations */
12 bool show_location_range;
18 extern struct probe_conf probe_conf;
19 extern bool probe_event_dry_run;
23 /* kprobe-tracer and uprobe-tracer tracing point */
24 struct probe_trace_point {
25 char *realname; /* function real name (if needed) */
26 char *symbol; /* Base symbol */
27 char *module; /* Module name */
28 unsigned long offset; /* Offset from symbol */
29 unsigned long address; /* Actual address of the trace point */
30 bool retprobe; /* Return probe flag */
33 /* probe-tracer tracing argument referencing offset */
34 struct probe_trace_arg_ref {
35 struct probe_trace_arg_ref *next; /* Next reference */
36 long offset; /* Offset value */
39 /* kprobe-tracer and uprobe-tracer tracing argument */
40 struct probe_trace_arg {
41 char *name; /* Argument name */
42 char *value; /* Base value */
43 char *type; /* Type name */
44 struct probe_trace_arg_ref *ref; /* Referencing offset */
47 /* kprobe-tracer and uprobe-tracer tracing event (point + arg) */
48 struct probe_trace_event {
49 char *event; /* Event name */
50 char *group; /* Group name */
51 struct probe_trace_point point; /* Trace point */
52 int nargs; /* Number of args */
53 bool uprobes; /* uprobes only */
54 struct probe_trace_arg *args; /* Arguments */
57 /* Perf probe probing point */
58 struct perf_probe_point {
59 char *file; /* File path */
60 char *function; /* Function name */
61 int line; /* Line number */
62 bool retprobe; /* Return probe flag */
63 char *lazy_line; /* Lazy matching pattern */
64 unsigned long offset; /* Offset from function entry */
65 unsigned long abs_address; /* Absolute address of the point */
68 /* Perf probe probing argument field chain */
69 struct perf_probe_arg_field {
70 struct perf_probe_arg_field *next; /* Next field */
71 char *name; /* Name of the field */
72 long index; /* Array index number */
73 bool ref; /* Referencing flag */
76 /* Perf probe probing argument */
77 struct perf_probe_arg {
78 char *name; /* Argument name */
79 char *var; /* Variable name */
80 char *type; /* Type name */
81 struct perf_probe_arg_field *field; /* Structure fields */
84 /* Perf probe probing event (point + arg) */
85 struct perf_probe_event {
86 char *event; /* Event name */
87 char *group; /* Group name */
88 struct perf_probe_point point; /* Probe point */
89 int nargs; /* Number of arguments */
90 bool sdt; /* SDT/cached event flag */
91 bool uprobes; /* Uprobe event flag */
92 char *target; /* Target binary */
93 struct perf_probe_arg *args; /* Arguments */
94 struct probe_trace_event *tevs;
96 struct nsinfo *nsi; /* Target namespace */
101 char *file; /* File name */
102 char *function; /* Function name */
103 int start; /* Start line number */
104 int end; /* End line number */
105 int offset; /* Start line offset */
106 char *path; /* Real path name */
107 char *comp_dir; /* Compile directory */
108 struct intlist *line_list; /* Visible lines */
113 /* List of variables */
114 struct variable_list {
115 struct probe_trace_point point; /* Actual probepoint */
116 struct strlist *vars; /* Available variables */
120 int init_probe_symbol_maps(bool user_only);
121 void exit_probe_symbol_maps(void);
123 /* Command string to events */
124 int parse_perf_probe_command(const char *cmd, struct perf_probe_event *pev);
125 int parse_probe_trace_command(const char *cmd, struct probe_trace_event *tev);
127 /* Events to command string */
128 char *synthesize_perf_probe_command(struct perf_probe_event *pev);
129 char *synthesize_probe_trace_command(struct probe_trace_event *tev);
130 char *synthesize_perf_probe_arg(struct perf_probe_arg *pa);
131 char *synthesize_perf_probe_point(struct perf_probe_point *pp);
133 int perf_probe_event__copy(struct perf_probe_event *dst,
134 struct perf_probe_event *src);
136 bool perf_probe_with_var(struct perf_probe_event *pev);
138 /* Check the perf_probe_event needs debuginfo */
139 bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);
141 /* Release event contents */
142 void clear_perf_probe_event(struct perf_probe_event *pev);
143 void clear_probe_trace_event(struct probe_trace_event *tev);
145 /* Command string to line-range */
146 int parse_line_range_desc(const char *cmd, struct line_range *lr);
148 /* Release line range members */
149 void line_range__clear(struct line_range *lr);
151 /* Initialize line range */
152 int line_range__init(struct line_range *lr);
154 int add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
155 int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs);
156 int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs);
157 int show_probe_trace_events(struct perf_probe_event *pevs, int npevs);
158 void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs);
162 int del_perf_probe_events(struct strfilter *filter);
164 int show_perf_probe_event(const char *group, const char *event,
165 struct perf_probe_event *pev,
166 const char *module, bool use_stdout);
167 int show_perf_probe_events(struct strfilter *filter);
168 int show_line_range(struct line_range *lr, const char *module,
169 struct nsinfo *nsi, bool user);
170 int show_available_vars(struct perf_probe_event *pevs, int npevs,
171 struct strfilter *filter);
172 int show_available_funcs(const char *module, struct nsinfo *nsi,
173 struct strfilter *filter, bool user);
174 void arch__fix_tev_from_maps(struct perf_probe_event *pev,
175 struct probe_trace_event *tev, struct map *map,
178 /* If there is no space to write, returns -E2BIG. */
179 int e_snprintf(char *str, size_t size, const char *format, ...) __printf(3, 4);
181 /* Maximum index number of event-name postfix */
182 #define MAX_EVENT_INDEX 1024
184 int copy_to_probe_trace_arg(struct probe_trace_arg *tvar,
185 struct perf_probe_arg *pvar);
187 struct map *get_target_map(const char *target, struct nsinfo *nsi, bool user);
189 void arch__post_process_probe_trace_events(struct perf_probe_event *pev,
192 #endif /*_PROBE_EVENT_H */