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 /* Probe related configurations */ 10 struct probe_conf { 11 bool show_ext_vars; 12 bool show_location_range; 13 bool force_add; 14 bool no_inlines; 15 int max_probes; 16 }; 17 extern struct probe_conf probe_conf; 18 extern bool probe_event_dry_run; 19 20 /* kprobe-tracer and uprobe-tracer tracing point */ 21 struct probe_trace_point { 22 char *realname; /* function real name (if needed) */ 23 char *symbol; /* Base symbol */ 24 char *module; /* Module name */ 25 unsigned long offset; /* Offset from symbol */ 26 unsigned long address; /* Actual address of the trace point */ 27 bool retprobe; /* Return probe flag */ 28 }; 29 30 /* probe-tracer tracing argument referencing offset */ 31 struct probe_trace_arg_ref { 32 struct probe_trace_arg_ref *next; /* Next reference */ 33 long offset; /* Offset value */ 34 }; 35 36 /* kprobe-tracer and uprobe-tracer tracing argument */ 37 struct probe_trace_arg { 38 char *name; /* Argument name */ 39 char *value; /* Base value */ 40 char *type; /* Type name */ 41 struct probe_trace_arg_ref *ref; /* Referencing offset */ 42 }; 43 44 /* kprobe-tracer and uprobe-tracer tracing event (point + arg) */ 45 struct probe_trace_event { 46 char *event; /* Event name */ 47 char *group; /* Group name */ 48 struct probe_trace_point point; /* Trace point */ 49 int nargs; /* Number of args */ 50 bool uprobes; /* uprobes only */ 51 struct probe_trace_arg *args; /* Arguments */ 52 }; 53 54 /* Perf probe probing point */ 55 struct perf_probe_point { 56 char *file; /* File path */ 57 char *function; /* Function name */ 58 int line; /* Line number */ 59 bool retprobe; /* Return probe flag */ 60 char *lazy_line; /* Lazy matching pattern */ 61 unsigned long offset; /* Offset from function entry */ 62 unsigned long abs_address; /* Absolute address of the point */ 63 }; 64 65 /* Perf probe probing argument field chain */ 66 struct perf_probe_arg_field { 67 struct perf_probe_arg_field *next; /* Next field */ 68 char *name; /* Name of the field */ 69 long index; /* Array index number */ 70 bool ref; /* Referencing flag */ 71 }; 72 73 /* Perf probe probing argument */ 74 struct perf_probe_arg { 75 char *name; /* Argument name */ 76 char *var; /* Variable name */ 77 char *type; /* Type name */ 78 struct perf_probe_arg_field *field; /* Structure fields */ 79 }; 80 81 /* Perf probe probing event (point + arg) */ 82 struct perf_probe_event { 83 char *event; /* Event name */ 84 char *group; /* Group name */ 85 struct perf_probe_point point; /* Probe point */ 86 int nargs; /* Number of arguments */ 87 bool uprobes; /* Uprobe event flag */ 88 char *target; /* Target binary */ 89 struct perf_probe_arg *args; /* Arguments */ 90 }; 91 92 /* Line range */ 93 struct line_range { 94 char *file; /* File name */ 95 char *function; /* Function name */ 96 int start; /* Start line number */ 97 int end; /* End line number */ 98 int offset; /* Start line offset */ 99 char *path; /* Real path name */ 100 char *comp_dir; /* Compile directory */ 101 struct intlist *line_list; /* Visible lines */ 102 }; 103 104 /* List of variables */ 105 struct variable_list { 106 struct probe_trace_point point; /* Actual probepoint */ 107 struct strlist *vars; /* Available variables */ 108 }; 109 110 struct map; 111 112 /* Command string to events */ 113 extern int parse_perf_probe_command(const char *cmd, 114 struct perf_probe_event *pev); 115 extern int parse_probe_trace_command(const char *cmd, 116 struct probe_trace_event *tev); 117 118 /* Events to command string */ 119 extern char *synthesize_perf_probe_command(struct perf_probe_event *pev); 120 extern char *synthesize_probe_trace_command(struct probe_trace_event *tev); 121 extern int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf, 122 size_t len); 123 124 /* Check the perf_probe_event needs debuginfo */ 125 extern bool perf_probe_event_need_dwarf(struct perf_probe_event *pev); 126 127 /* Release event contents */ 128 extern void clear_perf_probe_event(struct perf_probe_event *pev); 129 extern void clear_probe_trace_event(struct probe_trace_event *tev); 130 131 /* Command string to line-range */ 132 extern int parse_line_range_desc(const char *cmd, struct line_range *lr); 133 134 /* Release line range members */ 135 extern void line_range__clear(struct line_range *lr); 136 137 /* Initialize line range */ 138 extern int line_range__init(struct line_range *lr); 139 140 extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs); 141 extern int del_perf_probe_events(struct strfilter *filter); 142 extern int show_perf_probe_events(struct strfilter *filter); 143 extern int show_line_range(struct line_range *lr, const char *module, 144 bool user); 145 extern int show_available_vars(struct perf_probe_event *pevs, int npevs, 146 struct strfilter *filter); 147 extern int show_available_funcs(const char *module, struct strfilter *filter, 148 bool user); 149 bool arch__prefers_symtab(void); 150 void arch__fix_tev_from_maps(struct perf_probe_event *pev, 151 struct probe_trace_event *tev, struct map *map); 152 153 /* If there is no space to write, returns -E2BIG. */ 154 int e_snprintf(char *str, size_t size, const char *format, ...) 155 __attribute__((format(printf, 3, 4))); 156 157 /* Maximum index number of event-name postfix */ 158 #define MAX_EVENT_INDEX 1024 159 160 int copy_to_probe_trace_arg(struct probe_trace_arg *tvar, 161 struct perf_probe_arg *pvar); 162 163 #endif /*_PROBE_EVENT_H */ 164