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Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/annotate.h | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h new file mode 100644 index 000000000..5399ba232 --- /dev/null +++ b/tools/perf/util/annotate.h @@ -0,0 +1,403 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_ANNOTATE_H +#define __PERF_ANNOTATE_H + +#include <stdbool.h> +#include <stdint.h> +#include <linux/types.h> +#include "symbol.h" +#include "hist.h" +#include "sort.h" +#include <linux/list.h> +#include <linux/rbtree.h> +#include <pthread.h> +#include <asm/bug.h> + +struct ins_ops; + +struct ins { + const char *name; + struct ins_ops *ops; +}; + +struct ins_operands { + char *raw; + char *raw_comment; + struct { + char *raw; + char *name; + struct symbol *sym; + u64 addr; + s64 offset; + bool offset_avail; + bool outside; + } target; + union { + struct { + char *raw; + char *name; + u64 addr; + } source; + struct { + struct ins ins; + struct ins_operands *ops; + } locked; + }; +}; + +struct arch; + +struct ins_ops { + void (*free)(struct ins_operands *ops); + int (*parse)(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms); + int (*scnprintf)(struct ins *ins, char *bf, size_t size, + struct ins_operands *ops); +}; + +bool ins__is_jump(const struct ins *ins); +bool ins__is_call(const struct ins *ins); +bool ins__is_ret(const struct ins *ins); +bool ins__is_lock(const struct ins *ins); +int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops); +bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2); + +#define ANNOTATION__IPC_WIDTH 6 +#define ANNOTATION__CYCLES_WIDTH 6 +#define ANNOTATION__MINMAX_CYCLES_WIDTH 19 + +struct annotation_options { + bool hide_src_code, + use_offset, + jump_arrows, + print_lines, + full_path, + show_linenr, + show_nr_jumps, + show_nr_samples, + show_total_period, + show_minmax_cycle, + show_asm_raw, + annotate_src; + u8 offset_level; + int min_pcnt; + int max_lines; + int context; + const char *objdump_path; + const char *disassembler_style; + unsigned int percent_type; +}; + +enum { + ANNOTATION__OFFSET_JUMP_TARGETS = 1, + ANNOTATION__OFFSET_CALL, + ANNOTATION__MAX_OFFSET_LEVEL, +}; + +#define ANNOTATION__MIN_OFFSET_LEVEL ANNOTATION__OFFSET_JUMP_TARGETS + +extern struct annotation_options annotation__default_options; + +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 annotation_line { + struct list_head node; + struct rb_node rb_node; + s64 offset; + char *line; + int line_nr; + int jump_sources; + float ipc; + u64 cycles; + u64 cycles_max; + u64 cycles_min; + size_t privsize; + char *path; + u32 idx; + int idx_asm; + int data_nr; + struct annotation_data data[0]; +}; + +struct disasm_line { + struct ins ins; + struct ins_operands ops; + + /* This needs to be at the end. */ + struct annotation_line al; +}; + +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); + +void disasm_line__free(struct disasm_line *dl); +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, + struct annotation_options *opts); + +int __annotation__scnprintf_samples_period(struct annotation *notes, + char *bf, size_t size, + struct perf_evsel *evsel, + bool show_freq); + +int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw); +size_t disasm__fprintf(struct list_head *head, FILE *fp); +void symbol__calc_percent(struct symbol *sym, struct perf_evsel *evsel); + +struct sym_hist { + u64 nr_samples; + u64 period; + struct sym_hist_entry addr[0]; +}; + +struct cyc_hist { + u64 start; + u64 cycles; + u64 cycles_aggr; + u64 cycles_max; + u64 cycles_min; + u32 num; + u32 num_aggr; + u8 have_start; + /* 1 byte padding */ + u16 reset; +}; + +/** struct annotated_source - symbols with hits have this attached as in sannotation + * + * @histograms: Array of addr hit histograms per event being monitored + * nr_histograms: This may not be the same as evsel->evlist->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. + * @lines: If 'print_lines' is specified, per source code line percentages + * @source: source parsed from a disassembler like objdump -dS + * @cyc_hist: Average cycles per basic block + * + * lines is 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; + int nr_histograms; + size_t sizeof_sym_hist; + struct cyc_hist *cycles_hist; + struct sym_hist *histograms; +}; + +struct annotation { + pthread_mutex_t lock; + u64 max_coverage; + u64 start; + struct annotation_options *options; + struct annotation_line **offsets; + int nr_events; + int nr_jumps; + int max_jump_sources; + int nr_entries; + int nr_asm_entries; + u16 max_line_len; + struct { + u8 addr; + u8 jumps; + u8 target; + u8 min_addr; + u8 max_addr; + } widths; + bool have_cycles; + struct annotated_source *src; +}; + +static inline int annotation__cycles_width(struct annotation *notes) +{ + if (notes->have_cycles && notes->options->show_minmax_cycle) + return ANNOTATION__IPC_WIDTH + ANNOTATION__MINMAX_CYCLES_WIDTH; + + return notes->have_cycles ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0; +} + +static inline int annotation__pcnt_width(struct annotation *notes) +{ + return (notes->options->show_total_period ? 12 : 7) * notes->nr_events; +} + +static inline bool annotation_line__filter(struct annotation_line *al, struct annotation *notes) +{ + return notes->options->hide_src_code && al->offset == -1; +} + +void annotation__set_offsets(struct annotation *notes, s64 size); +void annotation__compute_ipc(struct annotation *notes, size_t size); +void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym); +void annotation__update_column_widths(struct annotation *notes); +void annotation__init_column_widths(struct annotation *notes, struct symbol *sym); + +static inline struct sym_hist *annotated_source__histogram(struct annotated_source *src, int idx) +{ + return ((void *)src->histograms) + (src->sizeof_sym_hist * idx); +} + +static inline struct sym_hist *annotation__histogram(struct annotation *notes, int idx) +{ + return annotated_source__histogram(notes->src, idx); +} + +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 perf_evsel *evsel); + +int addr_map_symbol__account_cycles(struct addr_map_symbol *ams, + struct addr_map_symbol *start, + unsigned cycles); + +int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample, + struct perf_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 symbol *sym, struct map *map, + struct perf_evsel *evsel, size_t privsize, + struct annotation_options *options, + struct arch **parch); +int symbol__annotate2(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, + struct annotation_options *options, + 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__END, +}; + +int symbol__strerror_disassemble(struct symbol *sym, struct map *map, + int errnum, char *buf, size_t buflen); + +int symbol__annotate_printf(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, + struct annotation_options *options); +void symbol__annotate_zero_histogram(struct symbol *sym, int evidx); +void symbol__annotate_decay_histogram(struct symbol *sym, int evidx); +void annotated_source__purge(struct annotated_source *as); + +int map_symbol__annotation_dump(struct map_symbol *ms, struct perf_evsel *evsel, + struct annotation_options *opts); + +bool ui__has_annotation(void); + +int symbol__tty_annotate(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, struct annotation_options *opts); + +int symbol__tty_annotate2(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, struct annotation_options *opts); + +#ifdef HAVE_SLANG_SUPPORT +int symbol__tui_annotate(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, + struct hist_browser_timer *hbt, + struct annotation_options *opts); +#else +static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused, + struct map *map __maybe_unused, + struct perf_evsel *evsel __maybe_unused, + struct hist_browser_timer *hbt __maybe_unused, + struct annotation_options *opts __maybe_unused) +{ + return 0; +} +#endif + +void annotation_config__init(void); + +int annotate_parse_percent_type(const struct option *opt, const char *_str, + int unset); +#endif /* __PERF_ANNOTATE_H */ |