File-copy from v4.4.100

This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Please refer to that tree for all history prior to this point.

Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
new file mode 100644
index 0000000..f1a6db1
--- /dev/null
+++ b/tools/perf/util/parse-events.h
@@ -0,0 +1,173 @@
+#ifndef __PERF_PARSE_EVENTS_H
+#define __PERF_PARSE_EVENTS_H
+/*
+ * Parse symbolic events/counts passed in as options:
+ */
+
+#include <linux/list.h>
+#include <stdbool.h>
+#include <linux/types.h>
+#include <linux/perf_event.h>
+
+struct list_head;
+struct perf_evsel;
+struct perf_evlist;
+struct parse_events_error;
+
+struct option;
+
+struct tracepoint_path {
+	char *system;
+	char *name;
+	struct tracepoint_path *next;
+};
+
+extern struct tracepoint_path *tracepoint_id_to_path(u64 config);
+extern struct tracepoint_path *tracepoint_name_to_path(const char *name);
+extern bool have_tracepoints(struct list_head *evlist);
+
+const char *event_type(int type);
+
+extern int parse_events_option(const struct option *opt, const char *str,
+			       int unset);
+extern int parse_events(struct perf_evlist *evlist, const char *str,
+			struct parse_events_error *error);
+extern int parse_events_terms(struct list_head *terms, const char *str);
+extern int parse_filter(const struct option *opt, const char *str, int unset);
+extern int exclude_perf(const struct option *opt, const char *arg, int unset);
+
+#define EVENTS_HELP_MAX (128*1024)
+
+enum perf_pmu_event_symbol_type {
+	PMU_EVENT_SYMBOL_ERR,		/* not a PMU EVENT */
+	PMU_EVENT_SYMBOL,		/* normal style PMU event */
+	PMU_EVENT_SYMBOL_PREFIX,	/* prefix of pre-suf style event */
+	PMU_EVENT_SYMBOL_SUFFIX,	/* suffix of pre-suf style event */
+};
+
+struct perf_pmu_event_symbol {
+	char	*symbol;
+	enum perf_pmu_event_symbol_type	type;
+};
+
+enum {
+	PARSE_EVENTS__TERM_TYPE_NUM,
+	PARSE_EVENTS__TERM_TYPE_STR,
+};
+
+enum {
+	PARSE_EVENTS__TERM_TYPE_USER,
+	PARSE_EVENTS__TERM_TYPE_CONFIG,
+	PARSE_EVENTS__TERM_TYPE_CONFIG1,
+	PARSE_EVENTS__TERM_TYPE_CONFIG2,
+	PARSE_EVENTS__TERM_TYPE_NAME,
+	PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD,
+	PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ,
+	PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
+	PARSE_EVENTS__TERM_TYPE_TIME,
+	PARSE_EVENTS__TERM_TYPE_CALLGRAPH,
+	PARSE_EVENTS__TERM_TYPE_STACKSIZE,
+	PARSE_EVENTS__TERM_TYPE_NOINHERIT,
+	PARSE_EVENTS__TERM_TYPE_INHERIT
+};
+
+struct parse_events_term {
+	char *config;
+	union {
+		char *str;
+		u64  num;
+	} val;
+	int type_val;
+	int type_term;
+	struct list_head list;
+	bool used;
+
+	/* error string indexes for within parsed string */
+	int err_term;
+	int err_val;
+};
+
+struct parse_events_error {
+	int   idx;	/* index in the parsed string */
+	char *str;      /* string to display at the index */
+	char *help;	/* optional help string */
+};
+
+struct parse_events_evlist {
+	struct list_head	   list;
+	int			   idx;
+	int			   nr_groups;
+	struct parse_events_error *error;
+};
+
+struct parse_events_terms {
+	struct list_head *terms;
+};
+
+int parse_events__is_hardcoded_term(struct parse_events_term *term);
+int parse_events_term__num(struct parse_events_term **term,
+			   int type_term, char *config, u64 num,
+			   void *loc_term, void *loc_val);
+int parse_events_term__str(struct parse_events_term **term,
+			   int type_term, char *config, char *str,
+			   void *loc_term, void *loc_val);
+int parse_events_term__sym_hw(struct parse_events_term **term,
+			      char *config, unsigned idx);
+int parse_events_term__clone(struct parse_events_term **new,
+			     struct parse_events_term *term);
+void parse_events__free_terms(struct list_head *terms);
+int parse_events__modifier_event(struct list_head *list, char *str, bool add);
+int parse_events__modifier_group(struct list_head *list, char *event_mod);
+int parse_events_name(struct list_head *list, char *name);
+int parse_events_add_tracepoint(struct list_head *list, int *idx,
+				char *sys, char *event,
+				struct parse_events_error *error,
+				struct list_head *head_config);
+int parse_events_load_bpf(struct parse_events_evlist *data,
+			  struct list_head *list,
+			  char *bpf_file_name,
+			  bool source);
+/* Provide this function for perf test */
+struct bpf_object;
+int parse_events_load_bpf_obj(struct parse_events_evlist *data,
+			      struct list_head *list,
+			      struct bpf_object *obj);
+int parse_events_add_numeric(struct parse_events_evlist *data,
+			     struct list_head *list,
+			     u32 type, u64 config,
+			     struct list_head *head_config);
+int parse_events_add_cache(struct list_head *list, int *idx,
+			   char *type, char *op_result1, char *op_result2);
+int parse_events_add_breakpoint(struct list_head *list, int *idx,
+				void *ptr, char *type, u64 len);
+int parse_events_add_pmu(struct parse_events_evlist *data,
+			 struct list_head *list, char *name,
+			 struct list_head *head_config);
+enum perf_pmu_event_symbol_type
+perf_pmu__parse_check(const char *name);
+void parse_events__set_leader(char *name, struct list_head *list);
+void parse_events_update_lists(struct list_head *list_event,
+			       struct list_head *list_all);
+void parse_events_evlist_error(struct parse_events_evlist *data,
+			       int idx, const char *str);
+
+void print_events(const char *event_glob, bool name_only);
+
+struct event_symbol {
+	const char	*symbol;
+	const char	*alias;
+};
+extern struct event_symbol event_symbols_hw[];
+extern struct event_symbol event_symbols_sw[];
+void print_symbol_events(const char *event_glob, unsigned type,
+				struct event_symbol *syms, unsigned max,
+				bool name_only);
+void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
+			     bool name_only);
+int print_hwcache_events(const char *event_glob, bool name_only);
+extern int is_valid_tracepoint(const char *event_string);
+
+int valid_event_mount(const char *eventfs);
+char *parse_events_formats_error_string(char *additional_terms);
+
+#endif /* __PERF_PARSE_EVENTS_H */