[linux-2.6-block.git] / tools / perf / util / annotate.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_ANNOTATE_H
#define __PERF_ANNOTATE_H

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/rbtree.h>
#include <asm/bug.h>
#include "symbol_conf.h"
#include "mutex.h"
#include "spark.h"
#include "hashmap.h"
#include "disasm.h"
#include "branch.h"
#include "evsel.h"

struct hist_browser_timer;
struct hist_entry;
struct map;
struct map_symbol;
struct addr_map_symbol;
struct option;
struct perf_sample;
struct symbol;
struct annotated_data_type;

#define ANNOTATION__IPC_WIDTH 6
#define ANNOTATION__CYCLES_WIDTH 6
#define ANNOTATION__MINMAX_CYCLES_WIDTH 19
#define ANNOTATION__AVG_IPC_WIDTH 36
#define ANNOTATION__BR_CNTR_WIDTH 30
#define ANNOTATION_DUMMY_LEN	256

enum perf_disassembler {
	PERF_DISASM_UNKNOWN = 0,
	PERF_DISASM_LLVM,
	PERF_DISASM_CAPSTONE,
	PERF_DISASM_OBJDUMP,
};
#define MAX_DISASSEMBLERS (PERF_DISASM_OBJDUMP + 1)

struct annotation_options {
	bool hide_src_code,
	     hide_src_code_on_title,
	     use_offset,
	     jump_arrows,
	     print_lines,
	     full_path,
	     show_linenr,
	     show_fileloc,
	     show_nr_jumps,
	     show_minmax_cycle,
	     show_asm_raw,
	     show_br_cntr,
	     annotate_src,
	     code_with_type,
	     full_addr;
	u8   offset_level;
	u8   disassemblers[MAX_DISASSEMBLERS];
	u8   disassembler_used;
	int  min_pcnt;
	int  max_lines;
	int  context;
	char *objdump_path;
	char *disassembler_style;
	const char *prefix;
	const char *prefix_strip;
	unsigned int percent_type;
};

extern struct annotation_options annotate_opts;

enum {
	ANNOTATION__OFFSET_JUMP_TARGETS = 1,
	ANNOTATION__OFFSET_CALL,
	ANNOTATION__MAX_OFFSET_LEVEL,
};

#define ANNOTATION__MIN_OFFSET_LEVEL ANNOTATION__OFFSET_JUMP_TARGETS

struct annotation;

struct sym_hist_entry {
	u64		nr_samples;
	u64		period;
};

enum {
	PERCENT_HITS_LOCAL,
	PERCENT_HITS_GLOBAL,
	PERCENT_PERIOD_LOCAL,
	PERCENT_PERIOD_GLOBAL,
	PERCENT_MAX,
};

struct annotation_data {
	double			 percent[PERCENT_MAX];
	double			 percent_sum;
	struct sym_hist_entry	 he;
};

struct cycles_info {
	float			 ipc;
	u64			 avg;
	u64			 max;
	u64			 min;
};

struct annotation_line {
	struct list_head	 node;
	struct rb_node		 rb_node;
	s64			 offset;
	char			*line;
	int			 line_nr;
	char			*fileloc;
	char			*path;
	struct cycles_info	*cycles;
	int			 num_aggr;
	int			 br_cntr_nr;
	u64			*br_cntr;
	struct evsel		*evsel;
	int			 jump_sources;
	u32			 idx;
	int			 idx_asm;
	int			 data_nr;
	struct annotation_data	 data[];
};

struct disasm_line {
	struct ins		 ins;
	struct ins_operands	 ops;
	union {
		u8 bytes[4];
		u32 raw_insn;
	} raw;
	/* This needs to be at the end. */
	struct annotation_line	 al;
};

extern const char * const perf_disassembler__strs[];

void annotation_line__add(struct annotation_line *al, struct list_head *head);

static inline double annotation_data__percent(struct annotation_data *data,
					      unsigned int which)
{
	return which < PERCENT_MAX ? data->percent[which] : -1;
}

static inline const char *percent_type_str(unsigned int type)
{
	static const char *str[PERCENT_MAX] = {
		"local hits",
		"global hits",
		"local period",
		"global period",
	};

	if (WARN_ON(type >= PERCENT_MAX))
		return "N/A";

	return str[type];
}

static inline struct disasm_line *disasm_line(struct annotation_line *al)
{
	return al ? container_of(al, struct disasm_line, al) : NULL;
}

/*
 * Is this offset in the same function as the line it is used?
 * asm functions jump to other functions, for instance.
 */
static inline bool disasm_line__has_local_offset(const struct disasm_line *dl)
{
	return dl->ops.target.offset_avail && !dl->ops.target.outside;
}

/*
 * Can we draw an arrow from the jump to its target, for instance? I.e.
 * is the jump and its target in the same function?
 */
bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym);

struct annotation_line *
annotation_line__next(struct annotation_line *pos, struct list_head *head);

struct annotation_write_ops {
	bool first_line, current_entry, change_color;
	int  width;
	void *obj;
	int  (*set_color)(void *obj, int color);
	void (*set_percent_color)(void *obj, double percent, bool current);
	int  (*set_jumps_percent_color)(void *obj, int nr, bool current);
	void (*printf)(void *obj, const char *fmt, ...);
	void (*write_graph)(void *obj, int graph);
};

void annotation_line__write(struct annotation_line *al, struct annotation *notes,
			    struct annotation_write_ops *ops);

int __annotation__scnprintf_samples_period(struct annotation *notes,
					   char *bf, size_t size,
					   struct evsel *evsel,
					   bool show_freq);

size_t disasm__fprintf(struct list_head *head, FILE *fp);
void symbol__calc_percent(struct symbol *sym, struct evsel *evsel);

/**
 * struct sym_hist - symbol histogram information for an event
 *
 * @nr_samples: Total number of samples.
 * @period: Sum of sample periods.
 */
struct sym_hist {
	u64		      nr_samples;
	u64		      period;
};

/**
 * struct cyc_hist - (CPU) cycle histogram for a basic block
 *
 * @start: Start address of current block (if known).
 * @cycles: Sum of cycles for the longest basic block.
 * @cycles_aggr: Total cycles for this address.
 * @cycles_max: Max cycles for this address.
 * @cycles_min: Min cycles for this address.
 * @cycles_spark: History of cycles for the longest basic block.
 * @num: Number of samples for the longest basic block.
 * @num_aggr: Total number of samples for this address.
 * @have_start: Whether the current branch info has a start address.
 * @reset: Number of resets due to a different start address.
 *
 * If sample has branch_stack and cycles info, it can construct basic blocks
 * between two adjacent branches.  It'd have start and end addresses but
 * sometimes the start address may not be available.  So the cycles are
 * accounted at the end address.  If multiple basic blocks end at the same
 * address, it will take the longest one.
 *
 * The @start, @cycles, @cycles_spark and @num fields are used for the longest
 * block only.  Other fields are used for all cases.
 *
 * See __symbol__account_cycles().
 */
struct cyc_hist {
	u64	start;
	u64	cycles;
	u64	cycles_aggr;
	u64	cycles_max;
	u64	cycles_min;
	s64	cycles_spark[NUM_SPARKS];
	u32	num;
	u32	num_aggr;
	u8	have_start;
	/* 1 byte padding */
	u16	reset;
};

/**
 * struct annotated_source - symbols with hits have this attached as in annotation
 *
 * @source: List head for annotated_line (embeded in disasm_line).
 * @histograms: Array of symbol histograms per event to maintain the total number
 * 		of samples and period.
 * @nr_histograms: This may not be the same as evsel->evlist->core.nr_entries if
 * 		  we have more than a group in a evlist, where we will want
 * 		  to see each group separately, that is why symbol__annotate2()
 * 		  sets src->nr_histograms to evsel->nr_members.
 * @samples: Hash map of sym_hist_entry.  Keyed by event index and offset in symbol.
 * @nr_events: Number of events in the current output.
 * @nr_entries: Number of annotated_line in the source list.
 * @nr_asm_entries: Number of annotated_line with actual asm instruction in the
 * 		    source list.
 * @max_jump_sources: Maximum number of jump instructions targeting to the same
 * 		      instruction.
 * @widths: Precalculated width of each column in the TUI output.
 *
 * disasm_lines are allocated, percentages calculated and all sorted by percentage
 * when the annotation is about to be presented, so the percentages are for
 * one of the entries in the histogram array, i.e. for the event/counter being
 * presented. It is deallocated right after symbol__{tui,tty,etc}_annotate
 * returns.
 */
struct annotated_source {
	struct list_head	source;
	struct sym_hist		*histograms;
	struct hashmap	   	*samples;
	int    			nr_histograms;
	int    			nr_events;
	int			nr_entries;
	int			nr_asm_entries;
	int			max_jump_sources;
	u64			start;
	struct {
		u8		addr;
		u8		jumps;
		u8		target;
		u8		min_addr;
		u8		max_addr;
		u8		max_ins_name;
		u16		max_line_len;
	} widths;
};

struct annotation_line *annotated_source__get_line(struct annotated_source *src,
						   s64 offset);

/* A branch counter once saturated */
#define ANNOTATION__BR_CNTR_SATURATED_FLAG	(1ULL << 63)

/**
 * struct annotated_branch - basic block and IPC information for a symbol.
 *
 * @hit_cycles: Total executed cycles.
 * @hit_insn: Total number of instructions executed.
 * @total_insn: Number of instructions in the function.
 * @cover_insn: Number of distinct, actually executed instructions.
 * @cycles_hist: Array of cyc_hist for each instruction.
 * @max_coverage: Maximum number of covered basic block (used for block-range).
 * @br_cntr: Array of the occurrences of events (branch counters) during a block.
 *
 * This struct is used by two different codes when the sample has branch stack
 * and cycles information.  annotation__compute_ipc() calculates average IPC
 * using @hit_insn / @hit_cycles.  The actual coverage can be calculated using
 * @cover_insn / @total_insn.  The @cycles_hist can give IPC for each (longest)
 * basic block ends at the given address.
 * process_basic_block() calculates coverage of instructions (or basic blocks)
 * in the function.
 */
struct annotated_branch {
	u64			hit_cycles;
	u64			hit_insn;
	unsigned int		total_insn;
	unsigned int		cover_insn;
	struct cyc_hist		*cycles_hist;
	u64			max_coverage;
	u64			*br_cntr;
};

struct LOCKABLE annotation {
	struct annotated_source *src;
	struct annotated_branch *branch;
};

static inline void annotation__init(struct annotation *notes __maybe_unused)
{
}
void annotation__exit(struct annotation *notes);

void annotation__lock(struct annotation *notes) EXCLUSIVE_LOCK_FUNCTION(*notes);
void annotation__unlock(struct annotation *notes) UNLOCK_FUNCTION(*notes);
bool annotation__trylock(struct annotation *notes) EXCLUSIVE_TRYLOCK_FUNCTION(true, *notes);

static inline int annotation__cycles_width(struct annotation *notes)
{
	if (notes->branch && annotate_opts.show_minmax_cycle)
		return ANNOTATION__IPC_WIDTH + ANNOTATION__MINMAX_CYCLES_WIDTH;

	return notes->branch ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0;
}

static inline int annotation__pcnt_width(struct annotation *notes)
{
	return (symbol_conf.show_total_period ? 12 : 8) * notes->src->nr_events;
}

static inline bool annotation_line__filter(struct annotation_line *al)
{
	return annotate_opts.hide_src_code && al->offset == -1;
}

static inline u8 annotation__br_cntr_width(void)
{
	return annotate_opts.show_br_cntr ? ANNOTATION__BR_CNTR_WIDTH : 0;
}

void annotation__update_column_widths(struct annotation *notes);
void annotation__toggle_full_addr(struct annotation *notes, struct map_symbol *ms);

static inline struct sym_hist *annotated_source__histogram(struct annotated_source *src,
							   const struct evsel *evsel)
{
	return &src->histograms[evsel->core.idx];
}

static inline struct sym_hist *annotation__histogram(struct annotation *notes,
						     const struct evsel *evsel)
{
	return annotated_source__histogram(notes->src, evsel);
}

static inline struct sym_hist_entry *
annotated_source__hist_entry(struct annotated_source *src, const struct evsel *evsel, u64 offset)
{
	struct sym_hist_entry *entry;
	long key = offset << 16 | evsel->core.idx;

	if (!hashmap__find(src->samples, key, &entry))
		return NULL;
	return entry;
}

static inline struct annotation *symbol__annotation(struct symbol *sym)
{
	return (void *)sym - symbol_conf.priv_size;
}

int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
				 struct evsel *evsel);

struct annotated_branch *annotation__get_branch(struct annotation *notes);

int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
				    struct addr_map_symbol *start,
				    unsigned cycles,
				    struct evsel *evsel,
				    u64 br_cntr);

int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
				 struct evsel *evsel, u64 addr);

struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists);
void symbol__annotate_zero_histograms(struct symbol *sym);

int symbol__annotate(struct map_symbol *ms,
		     struct evsel *evsel,
		     struct arch **parch);
int symbol__annotate2(struct map_symbol *ms,
		      struct evsel *evsel,
		      struct arch **parch);

enum symbol_disassemble_errno {
	SYMBOL_ANNOTATE_ERRNO__SUCCESS		= 0,

	/*
	 * Choose an arbitrary negative big number not to clash with standard
	 * errno since SUS requires the errno has distinct positive values.
	 * See 'Issue 6' in the link below.
	 *
	 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
	 */
	__SYMBOL_ANNOTATE_ERRNO__START		= -10000,

	SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX	= __SYMBOL_ANNOTATE_ERRNO__START,
	SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF,
	SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING,
	SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP,
	SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE,
	SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF,
	SYMBOL_ANNOTATE_ERRNO__COULDNT_DETERMINE_FILE_TYPE,

	__SYMBOL_ANNOTATE_ERRNO__END,
};

int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen);

void symbol__annotate_zero_histogram(struct symbol *sym, struct evsel *evsel);
void symbol__annotate_decay_histogram(struct symbol *sym, struct evsel *evsel);
void annotated_source__purge(struct annotated_source *as);

int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel);

bool ui__has_annotation(void);

int hist_entry__annotate_printf(struct hist_entry *he, struct evsel *evsel);
int hist_entry__tty_annotate(struct hist_entry *he, struct evsel *evsel);
int hist_entry__tty_annotate2(struct hist_entry *he, struct evsel *evsel);

#ifdef HAVE_SLANG_SUPPORT
int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
			 struct hist_browser_timer *hbt);
#else
static inline int symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
				struct evsel *evsel  __maybe_unused,
				struct hist_browser_timer *hbt __maybe_unused)
{
	return 0;
}
#endif

void annotation_options__init(void);
void annotation_options__exit(void);

void annotation_config__init(void);

int annotate_parse_percent_type(const struct option *opt, const char *_str,
				int unset);

int annotate_check_args(void);

/**
 * struct annotated_op_loc - Location info of instruction operand
 * @reg1: First register in the operand
 * @reg2: Second register in the operand
 * @offset: Memory access offset in the operand
 * @segment: Segment selector register
 * @mem_ref: Whether the operand accesses memory
 * @multi_regs: Whether the second register is used
 * @imm: Whether the operand is an immediate value (in offset)
 */
struct annotated_op_loc {
	int reg1;
	int reg2;
	int offset;
	u8 segment;
	bool mem_ref;
	bool multi_regs;
	bool imm;
};

enum annotated_insn_ops {
	INSN_OP_SOURCE = 0,
	INSN_OP_TARGET = 1,

	INSN_OP_MAX,
};

enum annotated_x86_segment {
	INSN_SEG_NONE = 0,

	INSN_SEG_X86_CS,
	INSN_SEG_X86_DS,
	INSN_SEG_X86_ES,
	INSN_SEG_X86_FS,
	INSN_SEG_X86_GS,
	INSN_SEG_X86_SS,
};

/**
 * struct annotated_insn_loc - Location info of instruction
 * @ops: Array of location info for source and target operands
 */
struct annotated_insn_loc {
	struct annotated_op_loc ops[INSN_OP_MAX];
};

#define for_each_insn_op_loc(insn_loc, i, op_loc)			\
	for (i = INSN_OP_SOURCE, op_loc = &(insn_loc)->ops[i];		\
	     i < INSN_OP_MAX;						\
	     i++, op_loc++)

/* Get detailed location info in the instruction */
int annotate_get_insn_location(struct arch *arch, struct disasm_line *dl,
			       struct annotated_insn_loc *loc);

/* Returns a data type from the sample instruction (if any) */
struct annotated_data_type *hist_entry__get_data_type(struct hist_entry *he);

struct annotated_item_stat {
	struct list_head list;
	char *name;
	int good;
	int bad;
};
extern struct list_head ann_insn_stat;

/* Calculate PC-relative address */
u64 annotate_calc_pcrel(struct map_symbol *ms, u64 ip, int offset,
			struct disasm_line *dl);

/**
 * struct annotated_basic_block - Basic block of instructions
 * @list: List node
 * @begin: start instruction in the block
 * @end: end instruction in the block
 */
struct annotated_basic_block {
	struct list_head list;
	struct disasm_line *begin;
	struct disasm_line *end;
};

/* Get a list of basic blocks from src to dst addresses */
int annotate_get_basic_blocks(struct symbol *sym, s64 src, s64 dst,
			      struct list_head *head);

void debuginfo_cache__delete(void);

int annotation_br_cntr_entry(char **str, int br_cntr_nr, u64 *br_cntr,
			     int num_aggr, struct evsel *evsel);
int annotation_br_cntr_abbr_list(char **str, struct evsel *evsel, bool header);
#endif	/* __PERF_ANNOTATE_H */
Commit	Line	Data
	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	#include "hashmap.h"
	16	#include "disasm.h"
	17	#include "branch.h"
	18	#include "evsel.h"
	19
	20	struct hist_browser_timer;
	21	struct hist_entry;
	22	struct map;
	23	struct map_symbol;
	24	struct addr_map_symbol;
	25	struct option;
	26	struct perf_sample;
	27	struct symbol;
	28	struct annotated_data_type;
	29
	30	#define ANNOTATION__IPC_WIDTH 6
	31	#define ANNOTATION__CYCLES_WIDTH 6
	32	#define ANNOTATION__MINMAX_CYCLES_WIDTH 19
	33	#define ANNOTATION__AVG_IPC_WIDTH 36
	34	#define ANNOTATION__BR_CNTR_WIDTH 30
	35	#define ANNOTATION_DUMMY_LEN 256
	36
	37	enum perf_disassembler {
	38	PERF_DISASM_UNKNOWN = 0,
	39	PERF_DISASM_LLVM,
	40	PERF_DISASM_CAPSTONE,
	41	PERF_DISASM_OBJDUMP,
	42	};
	43	#define MAX_DISASSEMBLERS (PERF_DISASM_OBJDUMP + 1)
	44
	45	struct annotation_options {
	46	bool hide_src_code,
	47	hide_src_code_on_title,
	48	use_offset,
	49	jump_arrows,
	50	print_lines,
	51	full_path,
	52	show_linenr,
	53	show_fileloc,
	54	show_nr_jumps,
	55	show_minmax_cycle,
	56	show_asm_raw,
	57	show_br_cntr,
	58	annotate_src,
	59	code_with_type,
	60	full_addr;
	61	u8 offset_level;
	62	u8 disassemblers[MAX_DISASSEMBLERS];
	63	u8 disassembler_used;
	64	int min_pcnt;
	65	int max_lines;
	66	int context;
	67	char *objdump_path;
	68	char *disassembler_style;
	69	const char *prefix;
	70	const char *prefix_strip;
	71	unsigned int percent_type;
	72	};
	73
	74	extern struct annotation_options annotate_opts;
	75
	76	enum {
	77	ANNOTATION__OFFSET_JUMP_TARGETS = 1,
	78	ANNOTATION__OFFSET_CALL,
	79	ANNOTATION__MAX_OFFSET_LEVEL,
	80	};
	81
	82	#define ANNOTATION__MIN_OFFSET_LEVEL ANNOTATION__OFFSET_JUMP_TARGETS
	83
	84	struct annotation;
	85
	86	struct sym_hist_entry {
	87	u64 nr_samples;
	88	u64 period;
	89	};
	90
	91	enum {
	92	PERCENT_HITS_LOCAL,
	93	PERCENT_HITS_GLOBAL,
	94	PERCENT_PERIOD_LOCAL,
	95	PERCENT_PERIOD_GLOBAL,
	96	PERCENT_MAX,
	97	};
	98
	99	struct annotation_data {
	100	double percent[PERCENT_MAX];
	101	double percent_sum;
	102	struct sym_hist_entry he;
	103	};
	104
	105	struct cycles_info {
	106	float ipc;
	107	u64 avg;
	108	u64 max;
	109	u64 min;
	110	};
	111
	112	struct annotation_line {
	113	struct list_head node;
	114	struct rb_node rb_node;
	115	s64 offset;
	116	char *line;
	117	int line_nr;
	118	char *fileloc;
	119	char *path;
	120	struct cycles_info *cycles;
	121	int num_aggr;
	122	int br_cntr_nr;
	123	u64 *br_cntr;
	124	struct evsel *evsel;
	125	int jump_sources;
	126	u32 idx;
	127	int idx_asm;
	128	int data_nr;
	129	struct annotation_data data[];
	130	};
	131
	132	struct disasm_line {
	133	struct ins ins;
	134	struct ins_operands ops;
	135	union {
	136	u8 bytes[4];
	137	u32 raw_insn;
	138	} raw;
	139	/* This needs to be at the end. */
	140	struct annotation_line al;
	141	};
	142
	143	extern const char * const perf_disassembler__strs[];
	144
	145	void annotation_line__add(struct annotation_line al, struct list_head head);
	146
	147	static inline double annotation_data__percent(struct annotation_data *data,
	148	unsigned int which)
	149	{
	150	return which < PERCENT_MAX ? data->percent[which] : -1;
	151	}
	152
	153	static inline const char *percent_type_str(unsigned int type)
	154	{
	155	static const char *str[PERCENT_MAX] = {
	156	"local hits",
	157	"global hits",
	158	"local period",
	159	"global period",
	160	};
	161
	162	if (WARN_ON(type >= PERCENT_MAX))
	163	return "N/A";
	164
	165	return str[type];
	166	}
	167
	168	static inline struct disasm_line disasm_line(struct annotation_line al)
	169	{
	170	return al ? container_of(al, struct disasm_line, al) : NULL;
	171	}
	172
	173	/*
	174	* Is this offset in the same function as the line it is used?
	175	* asm functions jump to other functions, for instance.
	176	*/
	177	static inline bool disasm_line__has_local_offset(const struct disasm_line *dl)
	178	{
	179	return dl->ops.target.offset_avail && !dl->ops.target.outside;
	180	}
	181
	182	/*
	183	* Can we draw an arrow from the jump to its target, for instance? I.e.
	184	* is the jump and its target in the same function?
	185	*/
	186	bool disasm_line__is_valid_local_jump(struct disasm_line dl, struct symbol sym);
	187
	188	struct annotation_line *
	189	annotation_line__next(struct annotation_line pos, struct list_head head);
	190
	191	struct annotation_write_ops {
	192	bool first_line, current_entry, change_color;
	193	int width;
	194	void *obj;
	195	int (set_color)(void obj, int color);
	196	void (set_percent_color)(void obj, double percent, bool current);
	197	int (set_jumps_percent_color)(void obj, int nr, bool current);
	198	void (printf)(void obj, const char *fmt, ...);
	199	void (write_graph)(void obj, int graph);
	200	};
	201
	202	void annotation_line__write(struct annotation_line al, struct annotation notes,
	203	struct annotation_write_ops *ops);
	204
	205	int __annotation__scnprintf_samples_period(struct annotation *notes,
	206	char *bf, size_t size,
	207	struct evsel *evsel,
	208	bool show_freq);
	209
	210	size_t disasm__fprintf(struct list_head head, FILE fp);
	211	void symbol__calc_percent(struct symbol sym, struct evsel evsel);
	212
	213	/**
	214	* struct sym_hist - symbol histogram information for an event
	215	*
	216	* @nr_samples: Total number of samples.
	217	* @period: Sum of sample periods.
	218	*/
	219	struct sym_hist {
	220	u64 nr_samples;
	221	u64 period;
	222	};
	223
	224	/**
	225	* struct cyc_hist - (CPU) cycle histogram for a basic block
	226	*
	227	* @start: Start address of current block (if known).
	228	* @cycles: Sum of cycles for the longest basic block.
	229	* @cycles_aggr: Total cycles for this address.
	230	* @cycles_max: Max cycles for this address.
	231	* @cycles_min: Min cycles for this address.
	232	* @cycles_spark: History of cycles for the longest basic block.
	233	* @num: Number of samples for the longest basic block.
	234	* @num_aggr: Total number of samples for this address.
	235	* @have_start: Whether the current branch info has a start address.
	236	* @reset: Number of resets due to a different start address.
	237	*
	238	* If sample has branch_stack and cycles info, it can construct basic blocks
	239	* between two adjacent branches. It'd have start and end addresses but
	240	* sometimes the start address may not be available. So the cycles are
	241	* accounted at the end address. If multiple basic blocks end at the same
	242	* address, it will take the longest one.
	243	*
	244	* The @start, @cycles, @cycles_spark and @num fields are used for the longest
	245	* block only. Other fields are used for all cases.
	246	*
	247	* See __symbol__account_cycles().
	248	*/
	249	struct cyc_hist {
	250	u64 start;
	251	u64 cycles;
	252	u64 cycles_aggr;
	253	u64 cycles_max;
	254	u64 cycles_min;
	255	s64 cycles_spark[NUM_SPARKS];
	256	u32 num;
	257	u32 num_aggr;
	258	u8 have_start;
	259	/* 1 byte padding */
	260	u16 reset;
	261	};
	262
	263	/**
	264	* struct annotated_source - symbols with hits have this attached as in annotation
	265	*
	266	* @source: List head for annotated_line (embeded in disasm_line).
	267	* @histograms: Array of symbol histograms per event to maintain the total number
	268	* of samples and period.
	269	* @nr_histograms: This may not be the same as evsel->evlist->core.nr_entries if
	270	* we have more than a group in a evlist, where we will want
	271	* to see each group separately, that is why symbol__annotate2()
	272	* sets src->nr_histograms to evsel->nr_members.
	273	* @samples: Hash map of sym_hist_entry. Keyed by event index and offset in symbol.
	274	* @nr_events: Number of events in the current output.
	275	* @nr_entries: Number of annotated_line in the source list.
	276	* @nr_asm_entries: Number of annotated_line with actual asm instruction in the
	277	* source list.
	278	* @max_jump_sources: Maximum number of jump instructions targeting to the same
	279	* instruction.
	280	* @widths: Precalculated width of each column in the TUI output.
	281	*
	282	* disasm_lines are allocated, percentages calculated and all sorted by percentage
	283	* when the annotation is about to be presented, so the percentages are for
	284	* one of the entries in the histogram array, i.e. for the event/counter being
	285	* presented. It is deallocated right after symbol__{tui,tty,etc}_annotate
	286	* returns.
	287	*/
	288	struct annotated_source {
	289	struct list_head source;
	290	struct sym_hist *histograms;
	291	struct hashmap *samples;
	292	int nr_histograms;
	293	int nr_events;
	294	int nr_entries;
	295	int nr_asm_entries;
	296	int max_jump_sources;
	297	u64 start;
	298	struct {
	299	u8 addr;
	300	u8 jumps;
	301	u8 target;
	302	u8 min_addr;
	303	u8 max_addr;
	304	u8 max_ins_name;
	305	u16 max_line_len;
	306	} widths;
	307	};
	308
	309	struct annotation_line annotated_source__get_line(struct annotated_source src,
	310	s64 offset);
	311
	312	/* A branch counter once saturated */
	313	#define ANNOTATION__BR_CNTR_SATURATED_FLAG (1ULL << 63)
	314
	315	/**
	316	* struct annotated_branch - basic block and IPC information for a symbol.
	317	*
	318	* @hit_cycles: Total executed cycles.
	319	* @hit_insn: Total number of instructions executed.
	320	* @total_insn: Number of instructions in the function.
	321	* @cover_insn: Number of distinct, actually executed instructions.
	322	* @cycles_hist: Array of cyc_hist for each instruction.
	323	* @max_coverage: Maximum number of covered basic block (used for block-range).
	324	* @br_cntr: Array of the occurrences of events (branch counters) during a block.
	325	*
	326	* This struct is used by two different codes when the sample has branch stack
	327	* and cycles information. annotation__compute_ipc() calculates average IPC
	328	* using @hit_insn / @hit_cycles. The actual coverage can be calculated using
	329	* @cover_insn / @total_insn. The @cycles_hist can give IPC for each (longest)
	330	* basic block ends at the given address.
	331	* process_basic_block() calculates coverage of instructions (or basic blocks)
	332	* in the function.
	333	*/
	334	struct annotated_branch {
	335	u64 hit_cycles;
	336	u64 hit_insn;
	337	unsigned int total_insn;
	338	unsigned int cover_insn;
	339	struct cyc_hist *cycles_hist;
	340	u64 max_coverage;
	341	u64 *br_cntr;
	342	};
	343
	344	struct LOCKABLE annotation {
	345	struct annotated_source *src;
	346	struct annotated_branch *branch;
	347	};
	348
	349	static inline void annotation__init(struct annotation *notes __maybe_unused)
	350	{
	351	}
	352	void annotation__exit(struct annotation *notes);
	353
	354	void annotation__lock(struct annotation notes) EXCLUSIVE_LOCK_FUNCTION(notes);
	355	void annotation__unlock(struct annotation notes) UNLOCK_FUNCTION(notes);
	356	bool annotation__trylock(struct annotation notes) EXCLUSIVE_TRYLOCK_FUNCTION(true, notes);
	357
	358	static inline int annotation__cycles_width(struct annotation *notes)
	359	{
	360	if (notes->branch && annotate_opts.show_minmax_cycle)
	361	return ANNOTATION__IPC_WIDTH + ANNOTATION__MINMAX_CYCLES_WIDTH;
	362
	363	return notes->branch ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0;
	364	}
	365
	366	static inline int annotation__pcnt_width(struct annotation *notes)
	367	{
	368	return (symbol_conf.show_total_period ? 12 : 8) * notes->src->nr_events;
	369	}
	370
	371	static inline bool annotation_line__filter(struct annotation_line *al)
	372	{
	373	return annotate_opts.hide_src_code && al->offset == -1;
	374	}
	375
	376	static inline u8 annotation__br_cntr_width(void)
	377	{
	378	return annotate_opts.show_br_cntr ? ANNOTATION__BR_CNTR_WIDTH : 0;
	379	}
	380
	381	void annotation__update_column_widths(struct annotation *notes);
	382	void annotation__toggle_full_addr(struct annotation notes, struct map_symbol ms);
	383
	384	static inline struct sym_hist annotated_source__histogram(struct annotated_source src,
	385	const struct evsel *evsel)
	386	{
	387	return &src->histograms[evsel->core.idx];
	388	}
	389
	390	static inline struct sym_hist annotation__histogram(struct annotation notes,
	391	const struct evsel *evsel)
	392	{
	393	return annotated_source__histogram(notes->src, evsel);
	394	}
	395
	396	static inline struct sym_hist_entry *
	397	annotated_source__hist_entry(struct annotated_source src, const struct evsel evsel, u64 offset)
	398	{
	399	struct sym_hist_entry *entry;
	400	long key = offset << 16 \| evsel->core.idx;
	401
	402	if (!hashmap__find(src->samples, key, &entry))
	403	return NULL;
	404	return entry;
	405	}
	406
	407	static inline struct annotation symbol__annotation(struct symbol sym)
	408	{
	409	return (void *)sym - symbol_conf.priv_size;
	410	}
	411
	412	int addr_map_symbol__inc_samples(struct addr_map_symbol ams, struct perf_sample sample,
	413	struct evsel *evsel);
	414
	415	struct annotated_branch annotation__get_branch(struct annotation notes);
	416
	417	int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
	418	struct addr_map_symbol *start,
	419	unsigned cycles,
	420	struct evsel *evsel,
	421	u64 br_cntr);
	422
	423	int hist_entry__inc_addr_samples(struct hist_entry he, struct perf_sample sample,
	424	struct evsel *evsel, u64 addr);
	425
	426	struct annotated_source symbol__hists(struct symbol sym, int nr_hists);
	427	void symbol__annotate_zero_histograms(struct symbol *sym);
	428
	429	int symbol__annotate(struct map_symbol *ms,
	430	struct evsel *evsel,
	431	struct arch **parch);
	432	int symbol__annotate2(struct map_symbol *ms,
	433	struct evsel *evsel,
	434	struct arch **parch);
	435
	436	enum symbol_disassemble_errno {
	437	SYMBOL_ANNOTATE_ERRNO__SUCCESS = 0,
	438
	439	/*
	440	* Choose an arbitrary negative big number not to clash with standard
	441	* errno since SUS requires the errno has distinct positive values.
	442	* See 'Issue 6' in the link below.
	443	*
	444	* http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
	445	*/
	446	__SYMBOL_ANNOTATE_ERRNO__START = -10000,
	447
	448	SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX = __SYMBOL_ANNOTATE_ERRNO__START,
	449	SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF,
	450	SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING,
	451	SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP,
	452	SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE,
	453	SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF,
	454	SYMBOL_ANNOTATE_ERRNO__COULDNT_DETERMINE_FILE_TYPE,
	455
	456	__SYMBOL_ANNOTATE_ERRNO__END,
	457	};
	458
	459	int symbol__strerror_disassemble(struct map_symbol ms, int errnum, char buf, size_t buflen);
	460
	461	void symbol__annotate_zero_histogram(struct symbol sym, struct evsel evsel);
	462	void symbol__annotate_decay_histogram(struct symbol sym, struct evsel evsel);
	463	void annotated_source__purge(struct annotated_source *as);
	464
	465	int map_symbol__annotation_dump(struct map_symbol ms, struct evsel evsel);
	466
	467	bool ui__has_annotation(void);
	468
	469	int hist_entry__annotate_printf(struct hist_entry he, struct evsel evsel);
	470	int hist_entry__tty_annotate(struct hist_entry he, struct evsel evsel);
	471	int hist_entry__tty_annotate2(struct hist_entry he, struct evsel evsel);
	472
	473	#ifdef HAVE_SLANG_SUPPORT
	474	int symbol__tui_annotate(struct map_symbol ms, struct evsel evsel,
	475	struct hist_browser_timer *hbt);
	476	#else
	477	static inline int symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
	478	struct evsel *evsel __maybe_unused,
	479	struct hist_browser_timer *hbt __maybe_unused)
	480	{
	481	return 0;
	482	}
	483	#endif
	484
	485	void annotation_options__init(void);
	486	void annotation_options__exit(void);
	487
	488	void annotation_config__init(void);
	489
	490	int annotate_parse_percent_type(const struct option opt, const char _str,
	491	int unset);
	492
	493	int annotate_check_args(void);
	494
	495	/**
	496	* struct annotated_op_loc - Location info of instruction operand
	497	* @reg1: First register in the operand
	498	* @reg2: Second register in the operand
	499	* @offset: Memory access offset in the operand
	500	* @segment: Segment selector register
	501	* @mem_ref: Whether the operand accesses memory
	502	* @multi_regs: Whether the second register is used
	503	* @imm: Whether the operand is an immediate value (in offset)
	504	*/
	505	struct annotated_op_loc {
	506	int reg1;
	507	int reg2;
	508	int offset;
	509	u8 segment;
	510	bool mem_ref;
	511	bool multi_regs;
	512	bool imm;
	513	};
	514
	515	enum annotated_insn_ops {
	516	INSN_OP_SOURCE = 0,
	517	INSN_OP_TARGET = 1,
	518
	519	INSN_OP_MAX,
	520	};
	521
	522	enum annotated_x86_segment {
	523	INSN_SEG_NONE = 0,
	524
	525	INSN_SEG_X86_CS,
	526	INSN_SEG_X86_DS,
	527	INSN_SEG_X86_ES,
	528	INSN_SEG_X86_FS,
	529	INSN_SEG_X86_GS,
	530	INSN_SEG_X86_SS,
	531	};
	532
	533	/**
	534	* struct annotated_insn_loc - Location info of instruction
	535	* @ops: Array of location info for source and target operands
	536	*/
	537	struct annotated_insn_loc {
	538	struct annotated_op_loc ops[INSN_OP_MAX];
	539	};
	540
	541	#define for_each_insn_op_loc(insn_loc, i, op_loc) \
	542	for (i = INSN_OP_SOURCE, op_loc = &(insn_loc)->ops[i]; \
	543	i < INSN_OP_MAX; \
	544	i++, op_loc++)
	545
	546	/* Get detailed location info in the instruction */
	547	int annotate_get_insn_location(struct arch arch, struct disasm_line dl,
	548	struct annotated_insn_loc *loc);
	549
	550	/* Returns a data type from the sample instruction (if any) */
	551	struct annotated_data_type hist_entry__get_data_type(struct hist_entry he);
	552
	553	struct annotated_item_stat {
	554	struct list_head list;
	555	char *name;
	556	int good;
	557	int bad;
	558	};
	559	extern struct list_head ann_insn_stat;
	560
	561	/* Calculate PC-relative address */
	562	u64 annotate_calc_pcrel(struct map_symbol *ms, u64 ip, int offset,
	563	struct disasm_line *dl);
	564
	565	/**
	566	* struct annotated_basic_block - Basic block of instructions
	567	* @list: List node
	568	* @begin: start instruction in the block
	569	* @end: end instruction in the block
	570	*/
	571	struct annotated_basic_block {
	572	struct list_head list;
	573	struct disasm_line *begin;
	574	struct disasm_line *end;
	575	};
	576
	577	/* Get a list of basic blocks from src to dst addresses */
	578	int annotate_get_basic_blocks(struct symbol *sym, s64 src, s64 dst,
	579	struct list_head *head);
	580
	581	void debuginfo_cache__delete(void);
	582
	583	int annotation_br_cntr_entry(char *str, int br_cntr_nr, u64 br_cntr,
	584	int num_aggr, struct evsel *evsel);
	585	int annotation_br_cntr_abbr_list(char *str, struct evsel evsel, bool header);
	586	#endif /* __PERF_ANNOTATE_H */