1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/compiler.h>
8 #include "namespaces.h"
10 /* Probe related configurations */
13 bool show_location_range;
19 extern struct probe_conf probe_conf;
20 extern bool probe_event_dry_run;
24 /* kprobe-tracer and uprobe-tracer tracing point */
25 struct probe_trace_point {
26 char *realname; /* function real name (if needed) */
27 char *symbol; /* Base symbol */
28 char *module; /* Module name */
29 unsigned long offset; /* Offset from symbol */
30 unsigned long address; /* Actual address of the trace point */
31 bool retprobe; /* Return probe flag */
34 /* probe-tracer tracing argument referencing offset */
35 struct probe_trace_arg_ref {
36 struct probe_trace_arg_ref *next; /* Next reference */
37 long offset; /* Offset value */
40 /* kprobe-tracer and uprobe-tracer tracing argument */
41 struct probe_trace_arg {
42 char *name; /* Argument name */
43 char *value; /* Base value */
44 char *type; /* Type name */
45 struct probe_trace_arg_ref *ref; /* Referencing offset */
48 /* kprobe-tracer and uprobe-tracer tracing event (point + arg) */
49 struct probe_trace_event {
50 char *event; /* Event name */
51 char *group; /* Group name */
52 struct probe_trace_point point; /* Trace point */
53 int nargs; /* Number of args */
54 bool uprobes; /* uprobes only */
55 struct probe_trace_arg *args; /* Arguments */
58 /* Perf probe probing point */
59 struct perf_probe_point {
60 char *file; /* File path */
61 char *function; /* Function name */
62 int line; /* Line number */
63 bool retprobe; /* Return probe flag */
64 char *lazy_line; /* Lazy matching pattern */
65 unsigned long offset; /* Offset from function entry */
66 unsigned long abs_address; /* Absolute address of the point */
69 /* Perf probe probing argument field chain */
70 struct perf_probe_arg_field {
71 struct perf_probe_arg_field *next; /* Next field */
72 char *name; /* Name of the field */
73 long index; /* Array index number */
74 bool ref; /* Referencing flag */
77 /* Perf probe probing argument */
78 struct perf_probe_arg {
79 char *name; /* Argument name */
80 char *var; /* Variable name */
81 char *type; /* Type name */
82 struct perf_probe_arg_field *field; /* Structure fields */
85 /* Perf probe probing event (point + arg) */
86 struct perf_probe_event {
87 char *event; /* Event name */
88 char *group; /* Group name */
89 struct perf_probe_point point; /* Probe point */
90 int nargs; /* Number of arguments */
91 bool sdt; /* SDT/cached event flag */
92 bool uprobes; /* Uprobe event flag */
93 char *target; /* Target binary */
94 struct perf_probe_arg *args; /* Arguments */
95 struct probe_trace_event *tevs;
97 struct nsinfo *nsi; /* Target namespace */
102 char *file; /* File name */
103 char *function; /* Function name */
104 int start; /* Start line number */
105 int end; /* End line number */
106 int offset; /* Start line offset */
107 char *path; /* Real path name */
108 char *comp_dir; /* Compile directory */
109 struct intlist *line_list; /* Visible lines */
114 /* List of variables */
115 struct variable_list {
116 struct probe_trace_point point; /* Actual probepoint */
117 struct strlist *vars; /* Available variables */
121 int init_probe_symbol_maps(bool user_only);
122 void exit_probe_symbol_maps(void);
124 /* Command string to events */
125 int parse_perf_probe_command(const char *cmd, struct perf_probe_event *pev);
126 int parse_probe_trace_command(const char *cmd, struct probe_trace_event *tev);
128 /* Events to command string */
129 char *synthesize_perf_probe_command(struct perf_probe_event *pev);
130 char *synthesize_probe_trace_command(struct probe_trace_event *tev);
131 char *synthesize_perf_probe_arg(struct perf_probe_arg *pa);
132 char *synthesize_perf_probe_point(struct perf_probe_point *pp);
134 int perf_probe_event__copy(struct perf_probe_event *dst,
135 struct perf_probe_event *src);
137 bool perf_probe_with_var(struct perf_probe_event *pev);
139 /* Check the perf_probe_event needs debuginfo */
140 bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);
142 /* Release event contents */
143 void clear_perf_probe_event(struct perf_probe_event *pev);
144 void clear_probe_trace_event(struct probe_trace_event *tev);
146 /* Command string to line-range */
147 int parse_line_range_desc(const char *cmd, struct line_range *lr);
149 /* Release line range members */
150 void line_range__clear(struct line_range *lr);
152 /* Initialize line range */
153 int line_range__init(struct line_range *lr);
155 int add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
156 int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs);
157 int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs);
158 int show_probe_trace_events(struct perf_probe_event *pevs, int npevs);
159 void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs);
163 int del_perf_probe_events(struct strfilter *filter);
165 int show_perf_probe_event(const char *group, const char *event,
166 struct perf_probe_event *pev,
167 const char *module, bool use_stdout);
168 int show_perf_probe_events(struct strfilter *filter);
169 int show_line_range(struct line_range *lr, const char *module,
170 struct nsinfo *nsi, bool user);
171 int show_available_vars(struct perf_probe_event *pevs, int npevs,
172 struct strfilter *filter);
173 int show_available_funcs(const char *module, struct nsinfo *nsi,
174 struct strfilter *filter, bool user);
175 void arch__fix_tev_from_maps(struct perf_probe_event *pev,
176 struct probe_trace_event *tev, struct map *map,
179 /* If there is no space to write, returns -E2BIG. */
180 int e_snprintf(char *str, size_t size, const char *format, ...) __printf(3, 4);
182 /* Maximum index number of event-name postfix */
183 #define MAX_EVENT_INDEX 1024
185 int copy_to_probe_trace_arg(struct probe_trace_arg *tvar,
186 struct perf_probe_arg *pvar);
188 struct map *get_target_map(const char *target, struct nsinfo *nsi, bool user);
190 void arch__post_process_probe_trace_events(struct perf_probe_event *pev,
193 #endif /*_PROBE_EVENT_H */