227 lines
5.8 KiB
C
227 lines
5.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_ANNOTATE_H
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#define __PERF_ANNOTATE_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <linux/types.h>
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#include "symbol.h"
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#include "hist.h"
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#include "sort.h"
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include <pthread.h>
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struct ins_ops;
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struct ins {
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const char *name;
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struct ins_ops *ops;
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};
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struct ins_operands {
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char *raw;
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struct {
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char *raw;
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char *name;
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u64 addr;
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s64 offset;
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bool offset_avail;
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} target;
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union {
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struct {
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char *raw;
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char *name;
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u64 addr;
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} source;
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struct {
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struct ins ins;
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struct ins_operands *ops;
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} locked;
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};
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};
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struct arch;
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struct ins_ops {
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void (*free)(struct ins_operands *ops);
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int (*parse)(struct arch *arch, struct ins_operands *ops, struct map *map);
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int (*scnprintf)(struct ins *ins, char *bf, size_t size,
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struct ins_operands *ops);
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};
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bool ins__is_jump(const struct ins *ins);
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bool ins__is_call(const struct ins *ins);
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bool ins__is_ret(const struct ins *ins);
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bool ins__is_lock(const struct ins *ins);
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int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops);
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bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2);
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struct annotation;
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struct disasm_line {
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struct list_head node;
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s64 offset;
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char *line;
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struct ins ins;
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int line_nr;
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float ipc;
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u64 cycles;
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struct ins_operands ops;
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};
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static inline bool disasm_line__has_offset(const struct disasm_line *dl)
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{
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return dl->ops.target.offset_avail;
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}
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struct sym_hist_entry {
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u64 nr_samples;
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u64 period;
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};
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void disasm_line__free(struct disasm_line *dl);
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struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos);
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int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw);
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size_t disasm__fprintf(struct list_head *head, FILE *fp);
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double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
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s64 end, const char **path, struct sym_hist_entry *sample);
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struct sym_hist {
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u64 nr_samples;
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u64 period;
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struct sym_hist_entry addr[0];
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};
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struct cyc_hist {
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u64 start;
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u64 cycles;
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u64 cycles_aggr;
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u32 num;
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u32 num_aggr;
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u8 have_start;
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/* 1 byte padding */
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u16 reset;
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};
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struct source_line_samples {
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double percent;
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double percent_sum;
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u64 nr;
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};
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struct source_line {
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struct rb_node node;
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char *path;
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int nr_pcnt;
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struct source_line_samples samples[1];
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};
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/** struct annotated_source - symbols with hits have this attached as in sannotation
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*
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* @histogram: Array of addr hit histograms per event being monitored
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* @lines: If 'print_lines' is specified, per source code line percentages
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* @source: source parsed from a disassembler like objdump -dS
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* @cyc_hist: Average cycles per basic block
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*
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* lines is allocated, percentages calculated and all sorted by percentage
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* when the annotation is about to be presented, so the percentages are for
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* one of the entries in the histogram array, i.e. for the event/counter being
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* presented. It is deallocated right after symbol__{tui,tty,etc}_annotate
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* returns.
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*/
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struct annotated_source {
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struct list_head source;
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struct source_line *lines;
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int nr_histograms;
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size_t sizeof_sym_hist;
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struct cyc_hist *cycles_hist;
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struct sym_hist histograms[0];
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};
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struct annotation {
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pthread_mutex_t lock;
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u64 max_coverage;
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struct annotated_source *src;
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};
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static inline struct sym_hist *annotation__histogram(struct annotation *notes, int idx)
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{
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return (((void *)¬es->src->histograms) +
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(notes->src->sizeof_sym_hist * idx));
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}
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static inline struct annotation *symbol__annotation(struct symbol *sym)
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{
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return (void *)sym - symbol_conf.priv_size;
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}
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int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
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int evidx);
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int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
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struct addr_map_symbol *start,
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unsigned cycles);
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int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
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int evidx, u64 addr);
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int symbol__alloc_hist(struct symbol *sym);
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void symbol__annotate_zero_histograms(struct symbol *sym);
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int symbol__disassemble(struct symbol *sym, struct map *map,
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const char *arch_name, size_t privsize,
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struct arch **parch, char *cpuid);
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enum symbol_disassemble_errno {
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SYMBOL_ANNOTATE_ERRNO__SUCCESS = 0,
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/*
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* Choose an arbitrary negative big number not to clash with standard
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* errno since SUS requires the errno has distinct positive values.
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* See 'Issue 6' in the link below.
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*
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* http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
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*/
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__SYMBOL_ANNOTATE_ERRNO__START = -10000,
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SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX = __SYMBOL_ANNOTATE_ERRNO__START,
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__SYMBOL_ANNOTATE_ERRNO__END,
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};
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int symbol__strerror_disassemble(struct symbol *sym, struct map *map,
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int errnum, char *buf, size_t buflen);
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int symbol__annotate_printf(struct symbol *sym, struct map *map,
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struct perf_evsel *evsel, bool full_paths,
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int min_pcnt, int max_lines, int context);
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void symbol__annotate_zero_histogram(struct symbol *sym, int evidx);
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void symbol__annotate_decay_histogram(struct symbol *sym, int evidx);
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void disasm__purge(struct list_head *head);
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bool ui__has_annotation(void);
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int symbol__tty_annotate(struct symbol *sym, struct map *map,
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struct perf_evsel *evsel, bool print_lines,
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bool full_paths, int min_pcnt, int max_lines);
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#ifdef HAVE_SLANG_SUPPORT
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int symbol__tui_annotate(struct symbol *sym, struct map *map,
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struct perf_evsel *evsel,
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struct hist_browser_timer *hbt);
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#else
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static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
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struct map *map __maybe_unused,
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struct perf_evsel *evsel __maybe_unused,
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struct hist_browser_timer *hbt
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__maybe_unused)
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{
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return 0;
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}
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#endif
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extern const char *disassembler_style;
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#endif /* __PERF_ANNOTATE_H */
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