/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _PROBE_EVENT_H #define _PROBE_EVENT_H #include #include struct intlist; struct nsinfo; /* Probe related configurations */ struct probe_conf { bool show_ext_vars; bool show_location_range; bool force_add; bool no_inlines; bool cache; bool bootconfig; int max_probes; unsigned long magic_num; }; extern struct probe_conf probe_conf; extern bool probe_event_dry_run; #define DEFAULT_PROBE_MAGIC_NUM 0xdeade12d /* u32: 3735937325 */ struct symbol; /* kprobe-tracer and uprobe-tracer tracing point */ struct probe_trace_point { char *realname; /* function real name (if needed) */ char *symbol; /* Base symbol */ char *module; /* Module name */ unsigned long offset; /* Offset from symbol */ unsigned long ref_ctr_offset; /* SDT reference counter offset */ u64 address; /* Actual address of the trace point */ bool retprobe; /* Return probe flag */ }; /* probe-tracer tracing argument referencing offset */ struct probe_trace_arg_ref { struct probe_trace_arg_ref *next; /* Next reference */ long offset; /* Offset value */ bool user_access; /* User-memory access */ }; /* kprobe-tracer and uprobe-tracer tracing argument */ struct probe_trace_arg { char *name; /* Argument name */ char *value; /* Base value */ char *type; /* Type name */ struct probe_trace_arg_ref *ref; /* Referencing offset */ }; /* kprobe-tracer and uprobe-tracer tracing event (point + arg) */ struct probe_trace_event { char *event; /* Event name */ char *group; /* Group name */ struct probe_trace_point point; /* Trace point */ int nargs; /* Number of args */ bool uprobes; /* uprobes only */ struct probe_trace_arg *args; /* Arguments */ }; /* Perf probe probing point */ struct perf_probe_point { char *file; /* File path */ char *function; /* Function name */ int line; /* Line number */ bool retprobe; /* Return probe flag */ char *lazy_line; /* Lazy matching pattern */ unsigned long offset; /* Offset from function entry */ u64 abs_address; /* Absolute address of the point */ }; /* Perf probe probing argument field chain */ struct perf_probe_arg_field { struct perf_probe_arg_field *next; /* Next field */ char *name; /* Name of the field */ long index; /* Array index number */ bool ref; /* Referencing flag */ }; /* Perf probe probing argument */ struct perf_probe_arg { char *name; /* Argument name */ char *var; /* Variable name */ char *type; /* Type name */ struct perf_probe_arg_field *field; /* Structure fields */ bool user_access; /* User-memory access */ }; /* Perf probe probing event (point + arg) */ struct perf_probe_event { char *event; /* Event name */ char *group; /* Group name */ struct perf_probe_point point; /* Probe point */ int nargs; /* Number of arguments */ bool sdt; /* SDT/cached event flag */ bool uprobes; /* Uprobe event flag */ char *target; /* Target binary */ struct perf_probe_arg *args; /* Arguments */ struct probe_trace_event *tevs; int ntevs; struct nsinfo *nsi; /* Target namespace */ }; /* Line range */ struct line_range { char *file; /* File name */ char *function; /* Function name */ int start; /* Start line number */ int end; /* End line number */ int offset; /* Start line offset */ char *path; /* Real path name */ char *comp_dir; /* Compile directory */ struct intlist *line_list; /* Visible lines */ }; struct strlist; /* List of variables */ struct variable_list { struct probe_trace_point point; /* Actual probepoint */ struct strlist *vars; /* Available variables */ }; struct map; int init_probe_symbol_maps(bool user_only); void exit_probe_symbol_maps(void); /* Command string to events */ int parse_perf_probe_command(const char *cmd, struct perf_probe_event *pev); int parse_probe_trace_command(const char *cmd, struct probe_trace_event *tev); /* Events to command string */ char *synthesize_perf_probe_command(struct perf_probe_event *pev); char *synthesize_probe_trace_command(struct probe_trace_event *tev); char *synthesize_perf_probe_arg(struct perf_probe_arg *pa); int perf_probe_event__copy(struct perf_probe_event *dst, struct perf_probe_event *src); bool perf_probe_with_var(struct perf_probe_event *pev); /* Check the perf_probe_event needs debuginfo */ bool perf_probe_event_need_dwarf(struct perf_probe_event *pev); /* Release event contents */ void clear_perf_probe_event(struct perf_probe_event *pev); void clear_probe_trace_event(struct probe_trace_event *tev); /* Command string to line-range */ int parse_line_range_desc(const char *cmd, struct line_range *lr); /* Release line range members */ void line_range__clear(struct line_range *lr); /* Initialize line range */ int line_range__init(struct line_range *lr); int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs); int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs); int show_probe_trace_events(struct perf_probe_event *pevs, int npevs); int show_bootconfig_events(struct perf_probe_event *pevs, int npevs); void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs); struct strfilter; int show_perf_probe_event(const char *group, const char *event, struct perf_probe_event *pev, const char *module, bool use_stdout); int show_perf_probe_events(struct strfilter *filter); int show_line_range(struct line_range *lr, const char *module, struct nsinfo *nsi, bool user); int show_available_vars(struct perf_probe_event *pevs, int npevs, struct strfilter *filter); int show_available_funcs(const char *module, struct nsinfo *nsi, struct strfilter *filter, bool user); void arch__fix_tev_from_maps(struct perf_probe_event *pev, struct probe_trace_event *tev, struct map *map, struct symbol *sym); /* If there is no space to write, returns -E2BIG. */ int e_snprintf(char *str, size_t size, const char *format, ...) __printf(3, 4); /* Maximum index number of event-name postfix */ #define MAX_EVENT_INDEX 1024 int copy_to_probe_trace_arg(struct probe_trace_arg *tvar, struct perf_probe_arg *pvar); struct map *get_target_map(const char *target, struct nsinfo *nsi, bool user); void arch__post_process_probe_trace_events(struct perf_probe_event *pev, int ntevs); #endif /*_PROBE_EVENT_H */