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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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d2009c5130
In order to implement callchains collapsing, we need to keep track of the maximum depth in a histogram tree of callchains. This way we'll avoid allocating an arbitrary temporary buffer size on callchain merge time. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Christoph Hellwig <hch@infradead.org>
125 lines
3.3 KiB
C
125 lines
3.3 KiB
C
#ifndef __PERF_SORT_H
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#define __PERF_SORT_H
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#include "../builtin.h"
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#include "util.h"
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#include "color.h"
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#include <linux/list.h>
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#include "cache.h"
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#include <linux/rbtree.h>
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#include "symbol.h"
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#include "string.h"
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#include "callchain.h"
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#include "strlist.h"
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#include "values.h"
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#include "../perf.h"
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#include "debug.h"
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#include "header.h"
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#include "parse-options.h"
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#include "parse-events.h"
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#include "thread.h"
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#include "sort.h"
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extern regex_t parent_regex;
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extern const char *sort_order;
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extern const char default_parent_pattern[];
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extern const char *parent_pattern;
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extern const char default_sort_order[];
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extern int sort__need_collapse;
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extern int sort__has_parent;
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extern char *field_sep;
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extern struct sort_entry sort_comm;
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extern struct sort_entry sort_dso;
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extern struct sort_entry sort_sym;
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extern struct sort_entry sort_parent;
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extern enum sort_type sort__first_dimension;
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/**
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* struct hist_entry - histogram entry
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*
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* @row_offset - offset from the first callchain expanded to appear on screen
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* @nr_rows - rows expanded in callchain, recalculated on folding/unfolding
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*/
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struct hist_entry {
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struct rb_node rb_node;
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u64 period;
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u64 period_sys;
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u64 period_us;
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u64 period_guest_sys;
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u64 period_guest_us;
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struct map_symbol ms;
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struct thread *thread;
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u64 ip;
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s32 cpu;
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u32 nr_events;
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/* XXX These two should move to some tree widget lib */
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u16 row_offset;
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u16 nr_rows;
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bool init_have_children;
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char level;
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u8 filtered;
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struct symbol *parent;
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union {
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unsigned long position;
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struct hist_entry *pair;
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struct rb_root sorted_chain;
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};
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struct callchain_root callchain[0];
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};
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enum sort_type {
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SORT_PID,
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SORT_COMM,
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SORT_DSO,
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SORT_SYM,
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SORT_PARENT,
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SORT_CPU,
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};
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/*
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* configurable sorting bits
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*/
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struct sort_entry {
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struct list_head list;
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const char *se_header;
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int64_t (*se_cmp)(struct hist_entry *, struct hist_entry *);
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int64_t (*se_collapse)(struct hist_entry *, struct hist_entry *);
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int (*se_snprintf)(struct hist_entry *self, char *bf, size_t size,
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unsigned int width);
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u8 se_width_idx;
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bool elide;
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};
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extern struct sort_entry sort_thread;
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extern struct list_head hist_entry__sort_list;
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void setup_sorting(const char * const usagestr[], const struct option *opts);
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extern size_t sort__thread_print(FILE *, struct hist_entry *, unsigned int);
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extern size_t sort__comm_print(FILE *, struct hist_entry *, unsigned int);
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extern size_t sort__dso_print(FILE *, struct hist_entry *, unsigned int);
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extern size_t sort__sym_print(FILE *, struct hist_entry *, unsigned int __used);
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extern int64_t cmp_null(void *, void *);
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extern int64_t sort__thread_cmp(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__comm_cmp(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__comm_collapse(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__dso_cmp(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__sym_cmp(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__parent_cmp(struct hist_entry *, struct hist_entry *);
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int64_t sort__cpu_cmp(struct hist_entry *left, struct hist_entry *right);
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extern size_t sort__parent_print(FILE *, struct hist_entry *, unsigned int);
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extern int sort_dimension__add(const char *);
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void sort_entry__setup_elide(struct sort_entry *self, struct strlist *list,
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const char *list_name, FILE *fp);
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#endif /* __PERF_SORT_H */
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