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v6.8
  1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef __PERF_ANNOTATE_H
  3#define __PERF_ANNOTATE_H
  4
  5#include <stdbool.h>
  6#include <stdint.h>
  7#include <stdio.h>
  8#include <linux/types.h>
  9#include <linux/list.h>
 10#include <linux/rbtree.h>
 11#include <asm/bug.h>
 12#include "symbol_conf.h"
 13#include "mutex.h"
 14#include "spark.h"
 15
 16struct hist_browser_timer;
 17struct hist_entry;
 18struct ins_ops;
 19struct map;
 20struct map_symbol;
 21struct addr_map_symbol;
 22struct option;
 23struct perf_sample;
 24struct evsel;
 25struct symbol;
 26struct annotated_data_type;
 27
 28struct ins {
 29	const char     *name;
 30	struct ins_ops *ops;
 31};
 32
 33struct ins_operands {
 34	char	*raw;
 
 
 35	struct {
 36		char	*raw;
 37		char	*name;
 38		struct symbol *sym;
 39		u64	addr;
 40		s64	offset;
 41		bool	offset_avail;
 42		bool	outside;
 43		bool	multi_regs;
 44	} target;
 45	union {
 46		struct {
 47			char	*raw;
 48			char	*name;
 49			u64	addr;
 50			bool	multi_regs;
 51		} source;
 52		struct {
 53			struct ins	    ins;
 54			struct ins_operands *ops;
 55		} locked;
 56		struct {
 57			char	*raw_comment;
 58			char	*raw_func_start;
 59		} jump;
 60	};
 61};
 62
 63struct arch;
 64
 65bool arch__is(struct arch *arch, const char *name);
 66
 67struct ins_ops {
 68	void (*free)(struct ins_operands *ops);
 69	int (*parse)(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms);
 70	int (*scnprintf)(struct ins *ins, char *bf, size_t size,
 71			 struct ins_operands *ops, int max_ins_name);
 72};
 73
 74bool ins__is_jump(const struct ins *ins);
 75bool ins__is_call(const struct ins *ins);
 76bool ins__is_ret(const struct ins *ins);
 77bool ins__is_lock(const struct ins *ins);
 78int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops, int max_ins_name);
 79bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2);
 80
 81#define ANNOTATION__IPC_WIDTH 6
 82#define ANNOTATION__CYCLES_WIDTH 6
 83#define ANNOTATION__MINMAX_CYCLES_WIDTH 19
 84#define ANNOTATION__AVG_IPC_WIDTH 36
 85#define ANNOTATION_DUMMY_LEN	256
 86
 87struct annotation_options {
 88	bool hide_src_code,
 89	     use_offset,
 90	     jump_arrows,
 91	     print_lines,
 92	     full_path,
 93	     show_linenr,
 94	     show_fileloc,
 95	     show_nr_jumps,
 96	     show_minmax_cycle,
 97	     show_asm_raw,
 98	     annotate_src,
 99	     full_addr;
100	u8   offset_level;
101	int  min_pcnt;
102	int  max_lines;
103	int  context;
104	char *objdump_path;
105	char *disassembler_style;
106	const char *prefix;
107	const char *prefix_strip;
108	unsigned int percent_type;
109};
110
111extern struct annotation_options annotate_opts;
112
113enum {
114	ANNOTATION__OFFSET_JUMP_TARGETS = 1,
115	ANNOTATION__OFFSET_CALL,
116	ANNOTATION__MAX_OFFSET_LEVEL,
117};
118
119#define ANNOTATION__MIN_OFFSET_LEVEL ANNOTATION__OFFSET_JUMP_TARGETS
120
 
 
121struct annotation;
122
123struct sym_hist_entry {
124	u64		nr_samples;
125	u64		period;
126};
127
128enum {
129	PERCENT_HITS_LOCAL,
130	PERCENT_HITS_GLOBAL,
131	PERCENT_PERIOD_LOCAL,
132	PERCENT_PERIOD_GLOBAL,
133	PERCENT_MAX,
134};
135
136struct annotation_data {
137	double			 percent[PERCENT_MAX];
138	double			 percent_sum;
139	struct sym_hist_entry	 he;
140};
141
142struct cycles_info {
143	float			 ipc;
144	u64			 avg;
145	u64			 max;
146	u64			 min;
147};
148
149struct annotation_line {
150	struct list_head	 node;
151	struct rb_node		 rb_node;
152	s64			 offset;
153	char			*line;
154	int			 line_nr;
155	char			*fileloc;
156	char			*path;
157	struct cycles_info	*cycles;
158	int			 jump_sources;
 
 
 
 
 
159	u32			 idx;
160	int			 idx_asm;
161	int			 data_nr;
162	struct annotation_data	 data[];
163};
164
165struct disasm_line {
166	struct ins		 ins;
167	struct ins_operands	 ops;
168
169	/* This needs to be at the end. */
170	struct annotation_line	 al;
171};
172
173static inline double annotation_data__percent(struct annotation_data *data,
174					      unsigned int which)
175{
176	return which < PERCENT_MAX ? data->percent[which] : -1;
177}
178
179static inline const char *percent_type_str(unsigned int type)
180{
181	static const char *str[PERCENT_MAX] = {
182		"local hits",
183		"global hits",
184		"local period",
185		"global period",
186	};
187
188	if (WARN_ON(type >= PERCENT_MAX))
189		return "N/A";
190
191	return str[type];
192}
193
194static inline struct disasm_line *disasm_line(struct annotation_line *al)
195{
196	return al ? container_of(al, struct disasm_line, al) : NULL;
197}
198
199/*
200 * Is this offset in the same function as the line it is used?
201 * asm functions jump to other functions, for instance.
202 */
203static inline bool disasm_line__has_local_offset(const struct disasm_line *dl)
204{
205	return dl->ops.target.offset_avail && !dl->ops.target.outside;
206}
207
208/*
209 * Can we draw an arrow from the jump to its target, for instance? I.e.
210 * is the jump and its target in the same function?
211 */
212bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym);
213
214void disasm_line__free(struct disasm_line *dl);
215struct annotation_line *
216annotation_line__next(struct annotation_line *pos, struct list_head *head);
217
218struct annotation_write_ops {
219	bool first_line, current_entry, change_color;
220	int  width;
221	void *obj;
222	int  (*set_color)(void *obj, int color);
223	void (*set_percent_color)(void *obj, double percent, bool current);
224	int  (*set_jumps_percent_color)(void *obj, int nr, bool current);
225	void (*printf)(void *obj, const char *fmt, ...);
226	void (*write_graph)(void *obj, int graph);
227};
228
229void annotation_line__write(struct annotation_line *al, struct annotation *notes,
230			    struct annotation_write_ops *ops);
 
231
232int __annotation__scnprintf_samples_period(struct annotation *notes,
233					   char *bf, size_t size,
234					   struct evsel *evsel,
235					   bool show_freq);
236
237int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name);
238size_t disasm__fprintf(struct list_head *head, FILE *fp);
239void symbol__calc_percent(struct symbol *sym, struct evsel *evsel);
240
241struct sym_hist {
242	u64		      nr_samples;
243	u64		      period;
244	struct sym_hist_entry addr[];
245};
246
247struct cyc_hist {
248	u64	start;
249	u64	cycles;
250	u64	cycles_aggr;
251	u64	cycles_max;
252	u64	cycles_min;
253	s64	cycles_spark[NUM_SPARKS];
254	u32	num;
255	u32	num_aggr;
256	u8	have_start;
257	/* 1 byte padding */
258	u16	reset;
259};
260
261/** struct annotated_source - symbols with hits have this attached as in sannotation
262 *
263 * @histograms: Array of addr hit histograms per event being monitored
264 * nr_histograms: This may not be the same as evsel->evlist->core.nr_entries if
265 * 		  we have more than a group in a evlist, where we will want
266 * 		  to see each group separately, that is why symbol__annotate2()
267 * 		  sets src->nr_histograms to evsel->nr_members.
268 * @lines: If 'print_lines' is specified, per source code line percentages
269 * @source: source parsed from a disassembler like objdump -dS
270 * @cyc_hist: Average cycles per basic block
271 *
272 * lines is allocated, percentages calculated and all sorted by percentage
273 * when the annotation is about to be presented, so the percentages are for
274 * one of the entries in the histogram array, i.e. for the event/counter being
275 * presented. It is deallocated right after symbol__{tui,tty,etc}_annotate
276 * returns.
277 */
278struct annotated_source {
279	struct list_head	source;
280	size_t			sizeof_sym_hist;
281	struct sym_hist		*histograms;
282	struct annotation_line	**offsets;
283	int    			nr_histograms;
284	int			nr_entries;
285	int			nr_asm_entries;
286	u16			max_line_len;
287};
288
289struct annotated_branch {
 
 
 
290	u64			hit_cycles;
291	u64			hit_insn;
292	unsigned int		total_insn;
293	unsigned int		cover_insn;
294	struct cyc_hist		*cycles_hist;
295	u64			max_coverage;
296};
297
298struct LOCKABLE annotation {
299	u64			start;
300	int			nr_events;
301	int			max_jump_sources;
 
 
 
302	struct {
303		u8		addr;
304		u8		jumps;
305		u8		target;
306		u8		min_addr;
307		u8		max_addr;
308		u8		max_ins_name;
309	} widths;
 
310	struct annotated_source *src;
311	struct annotated_branch *branch;
312};
313
314static inline void annotation__init(struct annotation *notes __maybe_unused)
315{
316}
317void annotation__exit(struct annotation *notes);
318
319void annotation__lock(struct annotation *notes) EXCLUSIVE_LOCK_FUNCTION(*notes);
320void annotation__unlock(struct annotation *notes) UNLOCK_FUNCTION(*notes);
321bool annotation__trylock(struct annotation *notes) EXCLUSIVE_TRYLOCK_FUNCTION(true, *notes);
322
323static inline int annotation__cycles_width(struct annotation *notes)
324{
325	if (notes->branch && annotate_opts.show_minmax_cycle)
326		return ANNOTATION__IPC_WIDTH + ANNOTATION__MINMAX_CYCLES_WIDTH;
327
328	return notes->branch ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0;
329}
330
331static inline int annotation__pcnt_width(struct annotation *notes)
332{
333	return (symbol_conf.show_total_period ? 12 : 7) * notes->nr_events;
334}
335
336static inline bool annotation_line__filter(struct annotation_line *al)
337{
338	return annotate_opts.hide_src_code && al->offset == -1;
339}
340
341void annotation__set_offsets(struct annotation *notes, s64 size);
 
342void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym);
343void annotation__update_column_widths(struct annotation *notes);
344void annotation__init_column_widths(struct annotation *notes, struct symbol *sym);
345void annotation__toggle_full_addr(struct annotation *notes, struct map_symbol *ms);
346
347static inline struct sym_hist *annotated_source__histogram(struct annotated_source *src, int idx)
348{
349	return ((void *)src->histograms) + (src->sizeof_sym_hist * idx);
350}
351
352static inline struct sym_hist *annotation__histogram(struct annotation *notes, int idx)
353{
354	return annotated_source__histogram(notes->src, idx);
355}
356
357static inline struct annotation *symbol__annotation(struct symbol *sym)
358{
359	return (void *)sym - symbol_conf.priv_size;
360}
361
362int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
363				 struct evsel *evsel);
364
365struct annotated_branch *annotation__get_branch(struct annotation *notes);
366
367int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
368				    struct addr_map_symbol *start,
369				    unsigned cycles);
370
371int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
372				 struct evsel *evsel, u64 addr);
373
374struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists);
375void symbol__annotate_zero_histograms(struct symbol *sym);
376
377int symbol__annotate(struct map_symbol *ms,
378		     struct evsel *evsel,
 
379		     struct arch **parch);
380int symbol__annotate2(struct map_symbol *ms,
381		      struct evsel *evsel,
 
382		      struct arch **parch);
383
384enum symbol_disassemble_errno {
385	SYMBOL_ANNOTATE_ERRNO__SUCCESS		= 0,
386
387	/*
388	 * Choose an arbitrary negative big number not to clash with standard
389	 * errno since SUS requires the errno has distinct positive values.
390	 * See 'Issue 6' in the link below.
391	 *
392	 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
393	 */
394	__SYMBOL_ANNOTATE_ERRNO__START		= -10000,
395
396	SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX	= __SYMBOL_ANNOTATE_ERRNO__START,
397	SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF,
398	SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING,
399	SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP,
400	SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE,
401	SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF,
402
403	__SYMBOL_ANNOTATE_ERRNO__END,
404};
405
406int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen);
407
408int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel);
 
409void symbol__annotate_zero_histogram(struct symbol *sym, int evidx);
410void symbol__annotate_decay_histogram(struct symbol *sym, int evidx);
411void annotated_source__purge(struct annotated_source *as);
412
413int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel);
 
414
415bool ui__has_annotation(void);
416
417int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel);
418
419int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel);
420
421#ifdef HAVE_SLANG_SUPPORT
422int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
423			 struct hist_browser_timer *hbt);
 
424#else
425static inline int symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
426				struct evsel *evsel  __maybe_unused,
427				struct hist_browser_timer *hbt __maybe_unused)
 
428{
429	return 0;
430}
431#endif
432
433void annotation_options__init(void);
434void annotation_options__exit(void);
435
436void annotation_config__init(void);
437
438int annotate_parse_percent_type(const struct option *opt, const char *_str,
439				int unset);
440
441int annotate_check_args(void);
442
443/**
444 * struct annotated_op_loc - Location info of instruction operand
445 * @reg: Register in the operand
446 * @offset: Memory access offset in the operand
447 * @mem_ref: Whether the operand accesses memory
448 */
449struct annotated_op_loc {
450	int reg;
451	int offset;
452	bool mem_ref;
453};
454
455enum annotated_insn_ops {
456	INSN_OP_SOURCE = 0,
457	INSN_OP_TARGET = 1,
458
459	INSN_OP_MAX,
460};
461
462/**
463 * struct annotated_insn_loc - Location info of instruction
464 * @ops: Array of location info for source and target operands
465 */
466struct annotated_insn_loc {
467	struct annotated_op_loc ops[INSN_OP_MAX];
468};
469
470#define for_each_insn_op_loc(insn_loc, i, op_loc)			\
471	for (i = INSN_OP_SOURCE, op_loc = &(insn_loc)->ops[i];		\
472	     i < INSN_OP_MAX;						\
473	     i++, op_loc++)
474
475/* Get detailed location info in the instruction */
476int annotate_get_insn_location(struct arch *arch, struct disasm_line *dl,
477			       struct annotated_insn_loc *loc);
478
479/* Returns a data type from the sample instruction (if any) */
480struct annotated_data_type *hist_entry__get_data_type(struct hist_entry *he);
481
482struct annotated_item_stat {
483	struct list_head list;
484	char *name;
485	int good;
486	int bad;
487};
488extern struct list_head ann_insn_stat;
489
490#endif	/* __PERF_ANNOTATE_H */
v6.2
  1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef __PERF_ANNOTATE_H
  3#define __PERF_ANNOTATE_H
  4
  5#include <stdbool.h>
  6#include <stdint.h>
  7#include <stdio.h>
  8#include <linux/types.h>
  9#include <linux/list.h>
 10#include <linux/rbtree.h>
 11#include <asm/bug.h>
 12#include "symbol_conf.h"
 13#include "mutex.h"
 14#include "spark.h"
 15
 16struct hist_browser_timer;
 17struct hist_entry;
 18struct ins_ops;
 19struct map;
 20struct map_symbol;
 21struct addr_map_symbol;
 22struct option;
 23struct perf_sample;
 24struct evsel;
 25struct symbol;
 
 26
 27struct ins {
 28	const char     *name;
 29	struct ins_ops *ops;
 30};
 31
 32struct ins_operands {
 33	char	*raw;
 34	char	*raw_comment;
 35	char	*raw_func_start;
 36	struct {
 37		char	*raw;
 38		char	*name;
 39		struct symbol *sym;
 40		u64	addr;
 41		s64	offset;
 42		bool	offset_avail;
 43		bool	outside;
 
 44	} target;
 45	union {
 46		struct {
 47			char	*raw;
 48			char	*name;
 49			u64	addr;
 
 50		} source;
 51		struct {
 52			struct ins	    ins;
 53			struct ins_operands *ops;
 54		} locked;
 
 
 
 
 55	};
 56};
 57
 58struct arch;
 59
 
 
 60struct ins_ops {
 61	void (*free)(struct ins_operands *ops);
 62	int (*parse)(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms);
 63	int (*scnprintf)(struct ins *ins, char *bf, size_t size,
 64			 struct ins_operands *ops, int max_ins_name);
 65};
 66
 67bool ins__is_jump(const struct ins *ins);
 68bool ins__is_call(const struct ins *ins);
 69bool ins__is_ret(const struct ins *ins);
 70bool ins__is_lock(const struct ins *ins);
 71int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops, int max_ins_name);
 72bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2);
 73
 74#define ANNOTATION__IPC_WIDTH 6
 75#define ANNOTATION__CYCLES_WIDTH 6
 76#define ANNOTATION__MINMAX_CYCLES_WIDTH 19
 77#define ANNOTATION__AVG_IPC_WIDTH 36
 78#define ANNOTATION_DUMMY_LEN	256
 79
 80struct annotation_options {
 81	bool hide_src_code,
 82	     use_offset,
 83	     jump_arrows,
 84	     print_lines,
 85	     full_path,
 86	     show_linenr,
 87	     show_fileloc,
 88	     show_nr_jumps,
 89	     show_minmax_cycle,
 90	     show_asm_raw,
 91	     annotate_src,
 92	     full_addr;
 93	u8   offset_level;
 94	int  min_pcnt;
 95	int  max_lines;
 96	int  context;
 97	const char *objdump_path;
 98	const char *disassembler_style;
 99	const char *prefix;
100	const char *prefix_strip;
101	unsigned int percent_type;
102};
103
 
 
104enum {
105	ANNOTATION__OFFSET_JUMP_TARGETS = 1,
106	ANNOTATION__OFFSET_CALL,
107	ANNOTATION__MAX_OFFSET_LEVEL,
108};
109
110#define ANNOTATION__MIN_OFFSET_LEVEL ANNOTATION__OFFSET_JUMP_TARGETS
111
112extern struct annotation_options annotation__default_options;
113
114struct annotation;
115
116struct sym_hist_entry {
117	u64		nr_samples;
118	u64		period;
119};
120
121enum {
122	PERCENT_HITS_LOCAL,
123	PERCENT_HITS_GLOBAL,
124	PERCENT_PERIOD_LOCAL,
125	PERCENT_PERIOD_GLOBAL,
126	PERCENT_MAX,
127};
128
129struct annotation_data {
130	double			 percent[PERCENT_MAX];
131	double			 percent_sum;
132	struct sym_hist_entry	 he;
133};
134
 
 
 
 
 
 
 
135struct annotation_line {
136	struct list_head	 node;
137	struct rb_node		 rb_node;
138	s64			 offset;
139	char			*line;
140	int			 line_nr;
141	char			*fileloc;
 
 
142	int			 jump_sources;
143	float			 ipc;
144	u64			 cycles;
145	u64			 cycles_max;
146	u64			 cycles_min;
147	char			*path;
148	u32			 idx;
149	int			 idx_asm;
150	int			 data_nr;
151	struct annotation_data	 data[];
152};
153
154struct disasm_line {
155	struct ins		 ins;
156	struct ins_operands	 ops;
157
158	/* This needs to be at the end. */
159	struct annotation_line	 al;
160};
161
162static inline double annotation_data__percent(struct annotation_data *data,
163					      unsigned int which)
164{
165	return which < PERCENT_MAX ? data->percent[which] : -1;
166}
167
168static inline const char *percent_type_str(unsigned int type)
169{
170	static const char *str[PERCENT_MAX] = {
171		"local hits",
172		"global hits",
173		"local period",
174		"global period",
175	};
176
177	if (WARN_ON(type >= PERCENT_MAX))
178		return "N/A";
179
180	return str[type];
181}
182
183static inline struct disasm_line *disasm_line(struct annotation_line *al)
184{
185	return al ? container_of(al, struct disasm_line, al) : NULL;
186}
187
188/*
189 * Is this offset in the same function as the line it is used?
190 * asm functions jump to other functions, for instance.
191 */
192static inline bool disasm_line__has_local_offset(const struct disasm_line *dl)
193{
194	return dl->ops.target.offset_avail && !dl->ops.target.outside;
195}
196
197/*
198 * Can we draw an arrow from the jump to its target, for instance? I.e.
199 * is the jump and its target in the same function?
200 */
201bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym);
202
203void disasm_line__free(struct disasm_line *dl);
204struct annotation_line *
205annotation_line__next(struct annotation_line *pos, struct list_head *head);
206
207struct annotation_write_ops {
208	bool first_line, current_entry, change_color;
209	int  width;
210	void *obj;
211	int  (*set_color)(void *obj, int color);
212	void (*set_percent_color)(void *obj, double percent, bool current);
213	int  (*set_jumps_percent_color)(void *obj, int nr, bool current);
214	void (*printf)(void *obj, const char *fmt, ...);
215	void (*write_graph)(void *obj, int graph);
216};
217
218void annotation_line__write(struct annotation_line *al, struct annotation *notes,
219			    struct annotation_write_ops *ops,
220			    struct annotation_options *opts);
221
222int __annotation__scnprintf_samples_period(struct annotation *notes,
223					   char *bf, size_t size,
224					   struct evsel *evsel,
225					   bool show_freq);
226
227int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name);
228size_t disasm__fprintf(struct list_head *head, FILE *fp);
229void symbol__calc_percent(struct symbol *sym, struct evsel *evsel);
230
231struct sym_hist {
232	u64		      nr_samples;
233	u64		      period;
234	struct sym_hist_entry addr[];
235};
236
237struct cyc_hist {
238	u64	start;
239	u64	cycles;
240	u64	cycles_aggr;
241	u64	cycles_max;
242	u64	cycles_min;
243	s64	cycles_spark[NUM_SPARKS];
244	u32	num;
245	u32	num_aggr;
246	u8	have_start;
247	/* 1 byte padding */
248	u16	reset;
249};
250
251/** struct annotated_source - symbols with hits have this attached as in sannotation
252 *
253 * @histograms: Array of addr hit histograms per event being monitored
254 * nr_histograms: This may not be the same as evsel->evlist->core.nr_entries if
255 * 		  we have more than a group in a evlist, where we will want
256 * 		  to see each group separately, that is why symbol__annotate2()
257 * 		  sets src->nr_histograms to evsel->nr_members.
258 * @lines: If 'print_lines' is specified, per source code line percentages
259 * @source: source parsed from a disassembler like objdump -dS
260 * @cyc_hist: Average cycles per basic block
261 *
262 * lines is allocated, percentages calculated and all sorted by percentage
263 * when the annotation is about to be presented, so the percentages are for
264 * one of the entries in the histogram array, i.e. for the event/counter being
265 * presented. It is deallocated right after symbol__{tui,tty,etc}_annotate
266 * returns.
267 */
268struct annotated_source {
269	struct list_head   source;
270	int    		   nr_histograms;
271	size_t		   sizeof_sym_hist;
272	struct cyc_hist	   *cycles_hist;
273	struct sym_hist	   *histograms;
 
 
 
274};
275
276struct annotation {
277	struct mutex lock;
278	u64			max_coverage;
279	u64			start;
280	u64			hit_cycles;
281	u64			hit_insn;
282	unsigned int		total_insn;
283	unsigned int		cover_insn;
284	struct annotation_options *options;
285	struct annotation_line	**offsets;
 
 
 
 
286	int			nr_events;
287	int			max_jump_sources;
288	int			nr_entries;
289	int			nr_asm_entries;
290	u16			max_line_len;
291	struct {
292		u8		addr;
293		u8		jumps;
294		u8		target;
295		u8		min_addr;
296		u8		max_addr;
297		u8		max_ins_name;
298	} widths;
299	bool			have_cycles;
300	struct annotated_source *src;
 
301};
302
303void annotation__init(struct annotation *notes);
 
 
304void annotation__exit(struct annotation *notes);
305
 
 
 
 
306static inline int annotation__cycles_width(struct annotation *notes)
307{
308	if (notes->have_cycles && notes->options->show_minmax_cycle)
309		return ANNOTATION__IPC_WIDTH + ANNOTATION__MINMAX_CYCLES_WIDTH;
310
311	return notes->have_cycles ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0;
312}
313
314static inline int annotation__pcnt_width(struct annotation *notes)
315{
316	return (symbol_conf.show_total_period ? 12 : 7) * notes->nr_events;
317}
318
319static inline bool annotation_line__filter(struct annotation_line *al, struct annotation *notes)
320{
321	return notes->options->hide_src_code && al->offset == -1;
322}
323
324void annotation__set_offsets(struct annotation *notes, s64 size);
325void annotation__compute_ipc(struct annotation *notes, size_t size);
326void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym);
327void annotation__update_column_widths(struct annotation *notes);
328void annotation__init_column_widths(struct annotation *notes, struct symbol *sym);
329void annotation__toggle_full_addr(struct annotation *notes, struct map_symbol *ms);
330
331static inline struct sym_hist *annotated_source__histogram(struct annotated_source *src, int idx)
332{
333	return ((void *)src->histograms) + (src->sizeof_sym_hist * idx);
334}
335
336static inline struct sym_hist *annotation__histogram(struct annotation *notes, int idx)
337{
338	return annotated_source__histogram(notes->src, idx);
339}
340
341static inline struct annotation *symbol__annotation(struct symbol *sym)
342{
343	return (void *)sym - symbol_conf.priv_size;
344}
345
346int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
347				 struct evsel *evsel);
348
 
 
349int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
350				    struct addr_map_symbol *start,
351				    unsigned cycles);
352
353int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
354				 struct evsel *evsel, u64 addr);
355
356struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists);
357void symbol__annotate_zero_histograms(struct symbol *sym);
358
359int symbol__annotate(struct map_symbol *ms,
360		     struct evsel *evsel,
361		     struct annotation_options *options,
362		     struct arch **parch);
363int symbol__annotate2(struct map_symbol *ms,
364		      struct evsel *evsel,
365		      struct annotation_options *options,
366		      struct arch **parch);
367
368enum symbol_disassemble_errno {
369	SYMBOL_ANNOTATE_ERRNO__SUCCESS		= 0,
370
371	/*
372	 * Choose an arbitrary negative big number not to clash with standard
373	 * errno since SUS requires the errno has distinct positive values.
374	 * See 'Issue 6' in the link below.
375	 *
376	 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
377	 */
378	__SYMBOL_ANNOTATE_ERRNO__START		= -10000,
379
380	SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX	= __SYMBOL_ANNOTATE_ERRNO__START,
381	SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF,
382	SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING,
383	SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP,
384	SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE,
385	SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF,
386
387	__SYMBOL_ANNOTATE_ERRNO__END,
388};
389
390int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen);
391
392int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel,
393			    struct annotation_options *options);
394void symbol__annotate_zero_histogram(struct symbol *sym, int evidx);
395void symbol__annotate_decay_histogram(struct symbol *sym, int evidx);
396void annotated_source__purge(struct annotated_source *as);
397
398int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel,
399				struct annotation_options *opts);
400
401bool ui__has_annotation(void);
402
403int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel, struct annotation_options *opts);
404
405int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel, struct annotation_options *opts);
406
407#ifdef HAVE_SLANG_SUPPORT
408int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
409			 struct hist_browser_timer *hbt,
410			 struct annotation_options *opts);
411#else
412static inline int symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
413				struct evsel *evsel  __maybe_unused,
414				struct hist_browser_timer *hbt __maybe_unused,
415				struct annotation_options *opts __maybe_unused)
416{
417	return 0;
418}
419#endif
420
421void annotation_config__init(struct annotation_options *opt);
 
 
 
422
423int annotate_parse_percent_type(const struct option *opt, const char *_str,
424				int unset);
425
426int annotate_check_args(struct annotation_options *args);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
427
428#endif	/* __PERF_ANNOTATE_H */