311 lines
8.2 KiB
C
311 lines
8.2 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#ifndef __PERF_CALLCHAIN_H
|
||
|
|
#define __PERF_CALLCHAIN_H
|
||
|
|
|
||
|
|
#include <linux/list.h>
|
||
|
|
#include <linux/rbtree.h>
|
||
|
|
#include "map_symbol.h"
|
||
|
|
#include "branch.h"
|
||
|
|
|
||
|
|
struct addr_location;
|
||
|
|
struct evsel;
|
||
|
|
struct ip_callchain;
|
||
|
|
struct map;
|
||
|
|
struct perf_sample;
|
||
|
|
struct thread;
|
||
|
|
struct hists;
|
||
|
|
|
||
|
|
#define HELP_PAD "\t\t\t\t"
|
||
|
|
|
||
|
|
#define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace):\n\n"
|
||
|
|
|
||
|
|
# define RECORD_MODE_HELP HELP_PAD "record_mode:\tcall graph recording mode (fp|dwarf|lbr)\n"
|
||
|
|
|
||
|
|
#define RECORD_SIZE_HELP \
|
||
|
|
HELP_PAD "record_size:\tif record_mode is 'dwarf', max size of stack recording (<bytes>)\n" \
|
||
|
|
HELP_PAD "\t\tdefault: 8192 (bytes)\n"
|
||
|
|
|
||
|
|
#define CALLCHAIN_RECORD_HELP CALLCHAIN_HELP RECORD_MODE_HELP RECORD_SIZE_HELP
|
||
|
|
|
||
|
|
#define CALLCHAIN_REPORT_HELP \
|
||
|
|
HELP_PAD "print_type:\tcall graph printing style (graph|flat|fractal|folded|none)\n" \
|
||
|
|
HELP_PAD "threshold:\tminimum call graph inclusion threshold (<percent>)\n" \
|
||
|
|
HELP_PAD "print_limit:\tmaximum number of call graph entry (<number>)\n" \
|
||
|
|
HELP_PAD "order:\t\tcall graph order (caller|callee)\n" \
|
||
|
|
HELP_PAD "sort_key:\tcall graph sort key (function|address)\n" \
|
||
|
|
HELP_PAD "branch:\t\tinclude last branch info to call graph (branch)\n" \
|
||
|
|
HELP_PAD "value:\t\tcall graph value (percent|period|count)\n"
|
||
|
|
|
||
|
|
enum perf_call_graph_mode {
|
||
|
|
CALLCHAIN_NONE,
|
||
|
|
CALLCHAIN_FP,
|
||
|
|
CALLCHAIN_DWARF,
|
||
|
|
CALLCHAIN_LBR,
|
||
|
|
CALLCHAIN_MAX
|
||
|
|
};
|
||
|
|
|
||
|
|
enum chain_mode {
|
||
|
|
CHAIN_NONE,
|
||
|
|
CHAIN_FLAT,
|
||
|
|
CHAIN_GRAPH_ABS,
|
||
|
|
CHAIN_GRAPH_REL,
|
||
|
|
CHAIN_FOLDED,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum chain_order {
|
||
|
|
ORDER_CALLER,
|
||
|
|
ORDER_CALLEE
|
||
|
|
};
|
||
|
|
|
||
|
|
struct callchain_node {
|
||
|
|
struct callchain_node *parent;
|
||
|
|
struct list_head val;
|
||
|
|
struct list_head parent_val;
|
||
|
|
struct rb_node rb_node_in; /* to insert nodes in an rbtree */
|
||
|
|
struct rb_node rb_node; /* to sort nodes in an output tree */
|
||
|
|
struct rb_root rb_root_in; /* input tree of children */
|
||
|
|
struct rb_root rb_root; /* sorted output tree of children */
|
||
|
|
unsigned int val_nr;
|
||
|
|
unsigned int count;
|
||
|
|
unsigned int children_count;
|
||
|
|
u64 hit;
|
||
|
|
u64 children_hit;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct callchain_root {
|
||
|
|
u64 max_depth;
|
||
|
|
struct callchain_node node;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct callchain_param;
|
||
|
|
|
||
|
|
typedef void (*sort_chain_func_t)(struct rb_root *, struct callchain_root *,
|
||
|
|
u64, struct callchain_param *);
|
||
|
|
|
||
|
|
enum chain_key {
|
||
|
|
CCKEY_FUNCTION,
|
||
|
|
CCKEY_ADDRESS,
|
||
|
|
CCKEY_SRCLINE
|
||
|
|
};
|
||
|
|
|
||
|
|
enum chain_value {
|
||
|
|
CCVAL_PERCENT,
|
||
|
|
CCVAL_PERIOD,
|
||
|
|
CCVAL_COUNT,
|
||
|
|
};
|
||
|
|
|
||
|
|
extern bool dwarf_callchain_users;
|
||
|
|
|
||
|
|
struct callchain_param {
|
||
|
|
bool enabled;
|
||
|
|
enum perf_call_graph_mode record_mode;
|
||
|
|
u32 dump_size;
|
||
|
|
enum chain_mode mode;
|
||
|
|
u16 max_stack;
|
||
|
|
u32 print_limit;
|
||
|
|
double min_percent;
|
||
|
|
sort_chain_func_t sort;
|
||
|
|
enum chain_order order;
|
||
|
|
bool order_set;
|
||
|
|
enum chain_key key;
|
||
|
|
bool branch_callstack;
|
||
|
|
enum chain_value value;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern struct callchain_param callchain_param;
|
||
|
|
extern struct callchain_param callchain_param_default;
|
||
|
|
|
||
|
|
struct callchain_list {
|
||
|
|
u64 ip;
|
||
|
|
struct map_symbol ms;
|
||
|
|
struct /* for TUI */ {
|
||
|
|
bool unfolded;
|
||
|
|
bool has_children;
|
||
|
|
};
|
||
|
|
u64 branch_count;
|
||
|
|
u64 from_count;
|
||
|
|
u64 predicted_count;
|
||
|
|
u64 abort_count;
|
||
|
|
u64 cycles_count;
|
||
|
|
u64 iter_count;
|
||
|
|
u64 iter_cycles;
|
||
|
|
struct branch_type_stat brtype_stat;
|
||
|
|
const char *srcline;
|
||
|
|
struct list_head list;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* A callchain cursor is a single linked list that
|
||
|
|
* let one feed a callchain progressively.
|
||
|
|
* It keeps persistent allocated entries to minimize
|
||
|
|
* allocations.
|
||
|
|
*/
|
||
|
|
struct callchain_cursor_node {
|
||
|
|
u64 ip;
|
||
|
|
struct map_symbol ms;
|
||
|
|
const char *srcline;
|
||
|
|
/* Indicate valid cursor node for LBR stitch */
|
||
|
|
bool valid;
|
||
|
|
|
||
|
|
bool branch;
|
||
|
|
struct branch_flags branch_flags;
|
||
|
|
u64 branch_from;
|
||
|
|
int nr_loop_iter;
|
||
|
|
u64 iter_cycles;
|
||
|
|
struct callchain_cursor_node *next;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct stitch_list {
|
||
|
|
struct list_head node;
|
||
|
|
struct callchain_cursor_node cursor;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct callchain_cursor {
|
||
|
|
u64 nr;
|
||
|
|
struct callchain_cursor_node *first;
|
||
|
|
struct callchain_cursor_node **last;
|
||
|
|
u64 pos;
|
||
|
|
struct callchain_cursor_node *curr;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern __thread struct callchain_cursor callchain_cursor;
|
||
|
|
|
||
|
|
static inline void callchain_init(struct callchain_root *root)
|
||
|
|
{
|
||
|
|
INIT_LIST_HEAD(&root->node.val);
|
||
|
|
INIT_LIST_HEAD(&root->node.parent_val);
|
||
|
|
|
||
|
|
root->node.parent = NULL;
|
||
|
|
root->node.hit = 0;
|
||
|
|
root->node.children_hit = 0;
|
||
|
|
root->node.rb_root_in = RB_ROOT;
|
||
|
|
root->max_depth = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline u64 callchain_cumul_hits(struct callchain_node *node)
|
||
|
|
{
|
||
|
|
return node->hit + node->children_hit;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned callchain_cumul_counts(struct callchain_node *node)
|
||
|
|
{
|
||
|
|
return node->count + node->children_count;
|
||
|
|
}
|
||
|
|
|
||
|
|
int callchain_register_param(struct callchain_param *param);
|
||
|
|
int callchain_append(struct callchain_root *root,
|
||
|
|
struct callchain_cursor *cursor,
|
||
|
|
u64 period);
|
||
|
|
|
||
|
|
int callchain_merge(struct callchain_cursor *cursor,
|
||
|
|
struct callchain_root *dst, struct callchain_root *src);
|
||
|
|
|
||
|
|
void callchain_cursor_reset(struct callchain_cursor *cursor);
|
||
|
|
|
||
|
|
int callchain_cursor_append(struct callchain_cursor *cursor, u64 ip,
|
||
|
|
struct map_symbol *ms,
|
||
|
|
bool branch, struct branch_flags *flags,
|
||
|
|
int nr_loop_iter, u64 iter_cycles, u64 branch_from,
|
||
|
|
const char *srcline);
|
||
|
|
|
||
|
|
/* Close a cursor writing session. Initialize for the reader */
|
||
|
|
static inline void callchain_cursor_commit(struct callchain_cursor *cursor)
|
||
|
|
{
|
||
|
|
cursor->curr = cursor->first;
|
||
|
|
cursor->pos = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Cursor reading iteration helpers */
|
||
|
|
static inline struct callchain_cursor_node *
|
||
|
|
callchain_cursor_current(struct callchain_cursor *cursor)
|
||
|
|
{
|
||
|
|
if (cursor->pos == cursor->nr)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
return cursor->curr;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void callchain_cursor_advance(struct callchain_cursor *cursor)
|
||
|
|
{
|
||
|
|
cursor->curr = cursor->curr->next;
|
||
|
|
cursor->pos++;
|
||
|
|
}
|
||
|
|
|
||
|
|
int callchain_cursor__copy(struct callchain_cursor *dst,
|
||
|
|
struct callchain_cursor *src);
|
||
|
|
|
||
|
|
struct option;
|
||
|
|
struct hist_entry;
|
||
|
|
|
||
|
|
int record_parse_callchain_opt(const struct option *opt, const char *arg, int unset);
|
||
|
|
int record_callchain_opt(const struct option *opt, const char *arg, int unset);
|
||
|
|
|
||
|
|
struct record_opts;
|
||
|
|
|
||
|
|
int record_opts__parse_callchain(struct record_opts *record,
|
||
|
|
struct callchain_param *callchain,
|
||
|
|
const char *arg, bool unset);
|
||
|
|
|
||
|
|
int sample__resolve_callchain(struct perf_sample *sample,
|
||
|
|
struct callchain_cursor *cursor, struct symbol **parent,
|
||
|
|
struct evsel *evsel, struct addr_location *al,
|
||
|
|
int max_stack);
|
||
|
|
int hist_entry__append_callchain(struct hist_entry *he, struct perf_sample *sample);
|
||
|
|
int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *node,
|
||
|
|
bool hide_unresolved);
|
||
|
|
|
||
|
|
extern const char record_callchain_help[];
|
||
|
|
int parse_callchain_record(const char *arg, struct callchain_param *param);
|
||
|
|
int parse_callchain_record_opt(const char *arg, struct callchain_param *param);
|
||
|
|
int parse_callchain_report_opt(const char *arg);
|
||
|
|
int parse_callchain_top_opt(const char *arg);
|
||
|
|
int perf_callchain_config(const char *var, const char *value);
|
||
|
|
|
||
|
|
static inline void callchain_cursor_snapshot(struct callchain_cursor *dest,
|
||
|
|
struct callchain_cursor *src)
|
||
|
|
{
|
||
|
|
*dest = *src;
|
||
|
|
|
||
|
|
dest->first = src->curr;
|
||
|
|
dest->nr -= src->pos;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef HAVE_SKIP_CALLCHAIN_IDX
|
||
|
|
int arch_skip_callchain_idx(struct thread *thread, struct ip_callchain *chain);
|
||
|
|
#else
|
||
|
|
static inline int arch_skip_callchain_idx(struct thread *thread __maybe_unused,
|
||
|
|
struct ip_callchain *chain __maybe_unused)
|
||
|
|
{
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
char *callchain_list__sym_name(struct callchain_list *cl,
|
||
|
|
char *bf, size_t bfsize, bool show_dso);
|
||
|
|
char *callchain_node__scnprintf_value(struct callchain_node *node,
|
||
|
|
char *bf, size_t bfsize, u64 total);
|
||
|
|
int callchain_node__fprintf_value(struct callchain_node *node,
|
||
|
|
FILE *fp, u64 total);
|
||
|
|
|
||
|
|
int callchain_list_counts__printf_value(struct callchain_list *clist,
|
||
|
|
FILE *fp, char *bf, int bfsize);
|
||
|
|
|
||
|
|
void free_callchain(struct callchain_root *root);
|
||
|
|
void decay_callchain(struct callchain_root *root);
|
||
|
|
int callchain_node__make_parent_list(struct callchain_node *node);
|
||
|
|
|
||
|
|
int callchain_branch_counts(struct callchain_root *root,
|
||
|
|
u64 *branch_count, u64 *predicted_count,
|
||
|
|
u64 *abort_count, u64 *cycles_count);
|
||
|
|
|
||
|
|
void callchain_param_setup(u64 sample_type);
|
||
|
|
|
||
|
|
bool callchain_cnode_matched(struct callchain_node *base_cnode,
|
||
|
|
struct callchain_node *pair_cnode);
|
||
|
|
|
||
|
|
u64 callchain_total_hits(struct hists *hists);
|
||
|
|
|
||
|
|
s64 callchain_avg_cycles(struct callchain_node *cnode);
|
||
|
|
|
||
|
|
#endif /* __PERF_CALLCHAIN_H */
|