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