Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 193 insertions, 0 deletions

diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
new file mode 100644
index 000000000..45b14f020
--- /dev/null
+++ b/tools/perf/util/probe-event.h
@@ -0,0 +1,193 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _PROBE_EVENT_H
+#define _PROBE_EVENT_H
+
+#include <linux/compiler.h>
+#include <stdbool.h>
+#include "intlist.h"
+#include "namespaces.h"
+
+/* Probe related configurations */
+struct probe_conf {
+	bool	show_ext_vars;
+	bool	show_location_range;
+	bool	force_add;
+	bool	no_inlines;
+	bool	cache;
+	int	max_probes;
+};
+extern struct probe_conf probe_conf;
+extern bool probe_event_dry_run;
+
+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	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 */
+};
+
+/* 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 */
+	unsigned long	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 */
+};
+
+/* 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);
+char *synthesize_perf_probe_point(struct perf_probe_point *pp);
+
+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 add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
+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);
+void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs);
+
+struct strfilter;
+
+int del_perf_probe_events(struct strfilter *filter);
+
+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 */