257 struct perf_hpp_fmt {  struct
259 	int (*header)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,  argument
261 	int (*width)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,  argument
263 	int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,  argument
265 	int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,  argument
267 	int64_t (*cmp)(struct perf_hpp_fmt *fmt,  argument
269 	int64_t (*collapse)(struct perf_hpp_fmt *fmt,  argument
271 	int64_t (*sort)(struct perf_hpp_fmt *fmt,  argument
273 	bool (*equal)(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b);  argument
274 	void (*free)(struct perf_hpp_fmt *fmt);  argument
276 	struct list_head list;
277 	struct list_head sort_list;
278 	bool elide;
279 	int len;
280 	int user_len;
281 	int idx;
282 	int level;