144 lines
3.7 KiB
C
144 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _PERF_ANNOTATE_DATA_H
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#define _PERF_ANNOTATE_DATA_H
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#include <errno.h>
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#include <linux/compiler.h>
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#include <linux/rbtree.h>
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#include <linux/types.h>
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struct evsel;
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struct map_symbol;
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/**
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* struct annotated_member - Type of member field
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* @node: List entry in the parent list
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* @children: List head for child nodes
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* @type_name: Name of the member type
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* @var_name: Name of the member variable
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* @offset: Offset from the outer data type
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* @size: Size of the member field
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*
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* This represents a member type in a data type.
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*/
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struct annotated_member {
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struct list_head node;
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struct list_head children;
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char *type_name;
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char *var_name;
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int offset;
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int size;
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};
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/**
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* struct type_hist_entry - Histogram entry per offset
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* @nr_samples: Number of samples
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* @period: Count of event
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*/
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struct type_hist_entry {
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int nr_samples;
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u64 period;
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};
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/**
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* struct type_hist - Type histogram for each event
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* @nr_samples: Total number of samples in this data type
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* @period: Total count of the event in this data type
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* @offset: Array of histogram entry
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*/
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struct type_hist {
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u64 nr_samples;
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u64 period;
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struct type_hist_entry addr[];
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};
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/**
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* struct annotated_data_type - Data type to profile
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* @node: RB-tree node for dso->type_tree
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* @self: Actual type information
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* @nr_histogram: Number of histogram entries
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* @histograms: An array of pointers to histograms
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*
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* This represents a data type accessed by samples in the profile data.
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*/
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struct annotated_data_type {
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struct rb_node node;
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struct annotated_member self;
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int nr_histograms;
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struct type_hist **histograms;
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};
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extern struct annotated_data_type unknown_type;
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/**
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* struct annotated_data_stat - Debug statistics
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* @total: Total number of entry
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* @no_sym: No symbol or map found
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* @no_insn: Failed to get disasm line
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* @no_insn_ops: The instruction has no operands
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* @no_mem_ops: The instruction has no memory operands
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* @no_reg: Failed to extract a register from the operand
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* @no_dbginfo: The binary has no debug information
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* @no_cuinfo: Failed to find a compile_unit
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* @no_var: Failed to find a matching variable
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* @no_typeinfo: Failed to get a type info for the variable
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* @invalid_size: Failed to get a size info of the type
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* @bad_offset: The access offset is out of the type
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*/
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struct annotated_data_stat {
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int total;
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int no_sym;
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int no_insn;
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int no_insn_ops;
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int no_mem_ops;
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int no_reg;
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int no_dbginfo;
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int no_cuinfo;
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int no_var;
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int no_typeinfo;
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int invalid_size;
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int bad_offset;
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};
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extern struct annotated_data_stat ann_data_stat;
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#ifdef HAVE_DWARF_SUPPORT
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/* Returns data type at the location (ip, reg, offset) */
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struct annotated_data_type *find_data_type(struct map_symbol *ms, u64 ip,
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int reg, int offset);
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/* Update type access histogram at the given offset */
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int annotated_data_type__update_samples(struct annotated_data_type *adt,
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struct evsel *evsel, int offset,
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int nr_samples, u64 period);
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/* Release all data type information in the tree */
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void annotated_data_type__tree_delete(struct rb_root *root);
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#else /* HAVE_DWARF_SUPPORT */
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static inline struct annotated_data_type *
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find_data_type(struct map_symbol *ms __maybe_unused, u64 ip __maybe_unused,
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int reg __maybe_unused, int offset __maybe_unused)
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{
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return NULL;
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}
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static inline int
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annotated_data_type__update_samples(struct annotated_data_type *adt __maybe_unused,
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struct evsel *evsel __maybe_unused,
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int offset __maybe_unused,
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int nr_samples __maybe_unused,
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u64 period __maybe_unused)
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{
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return -1;
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}
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static inline void annotated_data_type__tree_delete(struct rb_root *root __maybe_unused)
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{
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}
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#endif /* HAVE_DWARF_SUPPORT */
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#endif /* _PERF_ANNOTATE_DATA_H */
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