1 #ifndef _PROBE_EVENT_H 2 #define _PROBE_EVENT_H 3 4 #include <stdbool.h> 5 #include "intlist.h" 6 #include "strlist.h" 7 #include "strfilter.h" 8 9 extern bool probe_event_dry_run; 10 11 /* kprobe-tracer and uprobe-tracer tracing point */ 12 struct probe_trace_point { 13 char *symbol; /* Base symbol */ 14 char *module; /* Module name */ 15 unsigned long offset; /* Offset from symbol */ 16 unsigned long address; /* Actual address of the trace point */ 17 bool retprobe; /* Return probe flag */ 18 }; 19 20 /* probe-tracer tracing argument referencing offset */ 21 struct probe_trace_arg_ref { 22 struct probe_trace_arg_ref *next; /* Next reference */ 23 long offset; /* Offset value */ 24 }; 25 26 /* kprobe-tracer and uprobe-tracer tracing argument */ 27 struct probe_trace_arg { 28 char *name; /* Argument name */ 29 char *value; /* Base value */ 30 char *type; /* Type name */ 31 struct probe_trace_arg_ref *ref; /* Referencing offset */ 32 }; 33 34 /* kprobe-tracer and uprobe-tracer tracing event (point + arg) */ 35 struct probe_trace_event { 36 char *event; /* Event name */ 37 char *group; /* Group name */ 38 struct probe_trace_point point; /* Trace point */ 39 int nargs; /* Number of args */ 40 bool uprobes; /* uprobes only */ 41 struct probe_trace_arg *args; /* Arguments */ 42 }; 43 44 /* Perf probe probing point */ 45 struct perf_probe_point { 46 char *file; /* File path */ 47 char *function; /* Function name */ 48 int line; /* Line number */ 49 bool retprobe; /* Return probe flag */ 50 char *lazy_line; /* Lazy matching pattern */ 51 unsigned long offset; /* Offset from function entry */ 52 }; 53 54 /* Perf probe probing argument field chain */ 55 struct perf_probe_arg_field { 56 struct perf_probe_arg_field *next; /* Next field */ 57 char *name; /* Name of the field */ 58 long index; /* Array index number */ 59 bool ref; /* Referencing flag */ 60 }; 61 62 /* Perf probe probing argument */ 63 struct perf_probe_arg { 64 char *name; /* Argument name */ 65 char *var; /* Variable name */ 66 char *type; /* Type name */ 67 struct perf_probe_arg_field *field; /* Structure fields */ 68 }; 69 70 /* Perf probe probing event (point + arg) */ 71 struct perf_probe_event { 72 char *event; /* Event name */ 73 char *group; /* Group name */ 74 struct perf_probe_point point; /* Probe point */ 75 int nargs; /* Number of arguments */ 76 bool uprobes; 77 struct perf_probe_arg *args; /* Arguments */ 78 }; 79 80 /* Line range */ 81 struct line_range { 82 char *file; /* File name */ 83 char *function; /* Function name */ 84 int start; /* Start line number */ 85 int end; /* End line number */ 86 int offset; /* Start line offset */ 87 char *path; /* Real path name */ 88 char *comp_dir; /* Compile directory */ 89 struct intlist *line_list; /* Visible lines */ 90 }; 91 92 /* List of variables */ 93 struct variable_list { 94 struct probe_trace_point point; /* Actual probepoint */ 95 struct strlist *vars; /* Available variables */ 96 }; 97 98 /* Command string to events */ 99 extern int parse_perf_probe_command(const char *cmd, 100 struct perf_probe_event *pev); 101 102 /* Events to command string */ 103 extern char *synthesize_perf_probe_command(struct perf_probe_event *pev); 104 extern char *synthesize_probe_trace_command(struct probe_trace_event *tev); 105 extern int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf, 106 size_t len); 107 108 /* Check the perf_probe_event needs debuginfo */ 109 extern bool perf_probe_event_need_dwarf(struct perf_probe_event *pev); 110 111 /* Release event contents */ 112 extern void clear_perf_probe_event(struct perf_probe_event *pev); 113 114 /* Command string to line-range */ 115 extern int parse_line_range_desc(const char *cmd, struct line_range *lr); 116 117 /* Release line range members */ 118 extern void line_range__clear(struct line_range *lr); 119 120 /* Initialize line range */ 121 extern int line_range__init(struct line_range *lr); 122 123 /* Internal use: Return kernel/module path */ 124 extern const char *kernel_get_module_path(const char *module); 125 126 extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs, 127 int max_probe_points, const char *module, 128 bool force_add); 129 extern int del_perf_probe_events(struct strlist *dellist); 130 extern int show_perf_probe_events(void); 131 extern int show_line_range(struct line_range *lr, const char *module); 132 extern int show_available_vars(struct perf_probe_event *pevs, int npevs, 133 int max_probe_points, const char *module, 134 struct strfilter *filter, bool externs); 135 extern int show_available_funcs(const char *module, struct strfilter *filter, 136 bool user); 137 138 /* Maximum index number of event-name postfix */ 139 #define MAX_EVENT_INDEX 1024 140 141 #endif /*_PROBE_EVENT_H */ 142