1 #ifndef _PROBE_EVENT_H 2 #define _PROBE_EVENT_H 3 4 #include <stdbool.h> 5 #include "strlist.h" 6 #include "strfilter.h" 7 8 extern bool probe_event_dry_run; 9 10 /* kprobe-tracer tracing point */ 11 struct probe_trace_point { 12 char *symbol; /* Base symbol */ 13 unsigned long offset; /* Offset from symbol */ 14 bool retprobe; /* Return probe flag */ 15 }; 16 17 /* probe-tracer tracing argument referencing offset */ 18 struct probe_trace_arg_ref { 19 struct probe_trace_arg_ref *next; /* Next reference */ 20 long offset; /* Offset value */ 21 }; 22 23 /* kprobe-tracer tracing argument */ 24 struct probe_trace_arg { 25 char *name; /* Argument name */ 26 char *value; /* Base value */ 27 char *type; /* Type name */ 28 struct probe_trace_arg_ref *ref; /* Referencing offset */ 29 }; 30 31 /* kprobe-tracer tracing event (point + arg) */ 32 struct probe_trace_event { 33 char *event; /* Event name */ 34 char *group; /* Group name */ 35 struct probe_trace_point point; /* Trace point */ 36 int nargs; /* Number of args */ 37 struct probe_trace_arg *args; /* Arguments */ 38 }; 39 40 /* Perf probe probing point */ 41 struct perf_probe_point { 42 char *file; /* File path */ 43 char *function; /* Function name */ 44 int line; /* Line number */ 45 bool retprobe; /* Return probe flag */ 46 char *lazy_line; /* Lazy matching pattern */ 47 unsigned long offset; /* Offset from function entry */ 48 }; 49 50 /* Perf probe probing argument field chain */ 51 struct perf_probe_arg_field { 52 struct perf_probe_arg_field *next; /* Next field */ 53 char *name; /* Name of the field */ 54 long index; /* Array index number */ 55 bool ref; /* Referencing flag */ 56 }; 57 58 /* Perf probe probing argument */ 59 struct perf_probe_arg { 60 char *name; /* Argument name */ 61 char *var; /* Variable name */ 62 char *type; /* Type name */ 63 struct perf_probe_arg_field *field; /* Structure fields */ 64 }; 65 66 /* Perf probe probing event (point + arg) */ 67 struct perf_probe_event { 68 char *event; /* Event name */ 69 char *group; /* Group name */ 70 struct perf_probe_point point; /* Probe point */ 71 int nargs; /* Number of arguments */ 72 struct perf_probe_arg *args; /* Arguments */ 73 }; 74 75 76 /* Line number container */ 77 struct line_node { 78 struct list_head list; 79 int line; 80 }; 81 82 /* Line range */ 83 struct line_range { 84 char *file; /* File name */ 85 char *function; /* Function name */ 86 int start; /* Start line number */ 87 int end; /* End line number */ 88 int offset; /* Start line offset */ 89 char *path; /* Real path name */ 90 char *comp_dir; /* Compile directory */ 91 struct list_head line_list; /* Visible lines */ 92 }; 93 94 /* List of variables */ 95 struct variable_list { 96 struct probe_trace_point point; /* Actual probepoint */ 97 struct strlist *vars; /* Available variables */ 98 }; 99 100 /* Command string to events */ 101 extern int parse_perf_probe_command(const char *cmd, 102 struct perf_probe_event *pev); 103 104 /* Events to command string */ 105 extern char *synthesize_perf_probe_command(struct perf_probe_event *pev); 106 extern char *synthesize_probe_trace_command(struct probe_trace_event *tev); 107 extern int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf, 108 size_t len); 109 110 /* Check the perf_probe_event needs debuginfo */ 111 extern bool perf_probe_event_need_dwarf(struct perf_probe_event *pev); 112 113 /* Release event contents */ 114 extern void clear_perf_probe_event(struct perf_probe_event *pev); 115 116 /* Command string to line-range */ 117 extern int parse_line_range_desc(const char *cmd, struct line_range *lr); 118 119 /* Internal use: Return kernel/module path */ 120 extern const char *kernel_get_module_path(const char *module); 121 122 extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs, 123 int max_probe_points, const char *module, 124 bool force_add); 125 extern int del_perf_probe_events(struct strlist *dellist); 126 extern int show_perf_probe_events(void); 127 extern int show_line_range(struct line_range *lr, const char *module); 128 extern int show_available_vars(struct perf_probe_event *pevs, int npevs, 129 int max_probe_points, const char *module, 130 struct strfilter *filter, bool externs); 131 extern int show_available_funcs(const char *module, struct strfilter *filter); 132 133 134 /* Maximum index number of event-name postfix */ 135 #define MAX_EVENT_INDEX 1024 136 137 #endif /*_PROBE_EVENT_H */ 138
