c97cf42219
Now one has just to press the right key, 'a' or Enter on the main 'perf top --tui' screen to live annotate the symbol under the cursor. The annotate window starts centered on the hottest line (the one with most samples so far) then TAB and shift+TAB can be used to go to the prev/next hot line. Pressing 'H' at any point will center again the screen on the hottest line. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
103 lines
2.9 KiB
C
103 lines
2.9 KiB
C
#ifndef __PERF_ANNOTATE_H
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#define __PERF_ANNOTATE_H
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#include <stdbool.h>
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#include "types.h"
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#include "symbol.h"
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#include <linux/list.h>
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#include <linux/rbtree.h>
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struct objdump_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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};
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void objdump_line__free(struct objdump_line *self);
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struct objdump_line *objdump__get_next_ip_line(struct list_head *head,
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struct objdump_line *pos);
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struct sym_hist {
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u64 sum;
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u64 addr[0];
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};
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struct source_line {
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struct rb_node node;
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double percent;
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char *path;
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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 objdump -dS
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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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int sizeof_sym_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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struct annotated_source *src;
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};
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struct sannotation {
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struct annotation annotation;
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struct symbol symbol;
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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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struct sannotation *a = container_of(sym, struct sannotation, symbol);
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return &a->annotation;
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}
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int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
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int evidx, u64 addr);
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int symbol__alloc_hist(struct symbol *sym, int nevents);
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void symbol__annotate_zero_histograms(struct symbol *sym);
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int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize);
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int symbol__annotate_init(struct map *map __used, struct symbol *sym);
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int symbol__annotate_printf(struct symbol *sym, struct map *map, int evidx,
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bool full_paths, int min_pcnt, int max_lines,
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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 objdump_line_list__purge(struct list_head *head);
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int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx,
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bool print_lines, bool full_paths, int min_pcnt,
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int max_lines);
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#ifdef NO_NEWT_SUPPORT
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static inline int symbol__tui_annotate(struct symbol *sym __used,
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struct map *map __used,
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int evidx __used, int refresh __used)
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{
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return 0;
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}
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#else
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int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
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int refresh);
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#endif
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#endif /* __PERF_ANNOTATE_H */
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