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dwarves.h
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#ifndef _DWARVES_H_
#define _DWARVES_H_ 1
/*
SPDX-License-Identifier: GPL-2.0-only
Copyright (C) 2006 Mandriva Conectiva S.A.
Copyright (C) 2006..2019 Arnaldo Carvalho de Melo <[email protected]>
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <obstack.h>
#include <dwarf.h>
#include <elfutils/libdwfl.h>
#include <sys/types.h>
#include "dutil.h"
#include "list.h"
#include "rbtree.h"
/* Force a compilation error if condition is true, but also produce a
result (of value 0 and type size_t), so the expression can be used
e.g. in a structure initializer (or where-ever else comma expressions
aren't permitted). */
#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
/* Are two types/vars the same type (ignoring qualifiers)? */
#ifndef __same_type
# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
#endif
/* &a[0] degrades to a pointer: a different type from an array */
#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
struct cu;
enum load_steal_kind {
LSK__KEEPIT,
LSK__DELETE,
LSK__STOP_LOADING,
};
enum cu_state {
CU__UNPROCESSED,
CU__LOADED,
CU__PROCESSING,
};
/*
* BTF combines all the types into one big CU using btf_dedup(), so for something
* like a allyesconfig vmlinux kernel we can get over 65535 types.
*/
typedef uint32_t type_id_t;
struct btf;
struct conf_fprintf;
/** struct conf_load - load configuration
* @thread_exit - called at the end of a thread, 1st user: BTF encoder dedup
* @extra_dbg_info - keep original debugging format extra info
* (e.g. DWARF's decl_{line,file}, id, etc)
* @fixup_silly_bitfields - Fixup silly things such as "int foo:32;"
* @get_addr_info - wheter to load DW_AT_location and other addr info
* @nr_jobs - -j argument, number of threads to use
* @ptr_table_stats - print developer oriented ptr_table statistics.
* @skip_missing - skip missing types rather than bailing out.
*/
struct conf_load {
enum load_steal_kind (*steal)(struct cu *cu,
struct conf_load *conf,
void *thr_data);
struct cu * (*early_cu_filter)(struct cu *cu);
int (*thread_exit)(struct conf_load *conf, void *thr_data);
void *cookie;
char *format_path;
int nr_jobs;
bool extra_dbg_info;
bool use_obstack;
bool fixup_silly_bitfields;
bool get_addr_info;
bool ignore_alignment_attr;
bool ignore_inline_expansions;
bool ignore_labels;
bool ptr_table_stats;
bool skip_encoding_btf_decl_tag;
bool skip_missing;
bool skip_encoding_btf_type_tag;
bool skip_encoding_btf_enum64;
bool btf_gen_optimized;
bool skip_encoding_btf_inconsistent_proto;
bool skip_encoding_btf_vars;
bool encode_btf_global_vars;
bool btf_gen_floats;
bool btf_encode_force;
bool reproducible_build;
bool btf_decl_tag_kfuncs;
bool btf_gen_distilled_base;
uint8_t hashtable_bits;
uint8_t max_hashtable_bits;
uint16_t kabi_prefix_len;
const char *kabi_prefix;
struct btf *base_btf;
struct conf_fprintf *conf_fprintf;
int (*threads_prepare)(struct conf_load *conf, int nr_threads, void **thr_data);
int (*threads_collect)(struct conf_load *conf, int nr_threads, void **thr_data, int error);
};
/** struct conf_fprintf - hints to the __fprintf routines
*
* @count - Just like 'dd', stop pretty printing input after 'count' records
* @skip - Just like 'dd', skip 'count' records when pretty printing input
* @seek_bytes - Number of bytes to seek, if stdin only from start, when we have --pretty FILE, then from the end as well with negative numbers,
* may be of the form $header.MEMBER_NAME when using with --header.
* @size_bytes - Number of bytes to read, similar to seek_bytes, and when both are in place, first seek seek_bytes then read size_bytes
* @range - data structure field in --header to determine --seek_bytes and --size_bytes, must have 'offset' and 'size' fields
* @flat_arrays - a->foo[10][2] becomes a->foo[20]
* @classes_as_structs - class f becomes struct f, CTF doesn't have a "class"
* @cachelinep - pointer to current cacheline, so that when expanding types we keep track of it,
* needs to be "global", i.e. not set at each recursion.
* @suppress_force_paddings: This makes sense only if the debugging format has struct alignment information,
* So allow for it to be disabled and disable it automatically for things like BTF,
* that don't have such info.
* @skip_emitting_atomic_typedefs: Allow not emitting "typedef _Atomic int atomic_int;" and friends
*/
struct conf_fprintf {
const char *prefix;
const char *suffix;
int32_t type_spacing;
int32_t name_spacing;
uint32_t base_offset;
uint32_t count;
uint32_t *cachelinep;
const char *seek_bytes;
const char *size_bytes;
const char *header_type;
const char *range;
uint32_t skip;
uint16_t cacheline_size;
uint8_t indent;
uint8_t expand_types:1;
uint8_t expand_pointers:1;
uint8_t rel_offset:1;
uint8_t emit_stats:1;
uint8_t suppress_comments:1;
uint8_t has_alignment_info:1;
uint8_t suppress_aligned_attribute:1;
uint8_t suppress_offset_comment:1;
uint8_t suppress_force_paddings:1;
uint8_t suppress_packed:1;
uint8_t show_decl_info:1;
uint8_t show_only_data_members:1;
uint8_t no_semicolon:1;
uint8_t show_first_biggest_size_base_type_member:1;
uint8_t flat_arrays:1;
uint8_t first_member:1;
uint8_t last_member:1;
uint8_t union_member:1;
uint8_t no_parm_names:1;
uint8_t classes_as_structs:1;
uint8_t hex_fmt:1;
uint8_t strip_inline:1;
uint8_t skip_emitting_atomic_typedefs:1;
uint8_t skip_emitting_errors:1;
uint8_t skip_emitting_modifier:1;
};
struct cus;
struct cus *cus__new(void);
void cus__delete(struct cus *cus);
int cus__load_file(struct cus *cus, struct conf_load *conf,
const char *filename);
int cus__load_files(struct cus *cus, struct conf_load *conf,
char *filenames[]);
int cus__fprintf_load_files_err(struct cus *cus, const char *tool,
char *argv[], int err, FILE *output);
int cus__load_dir(struct cus *cus, struct conf_load *conf,
const char *dirname, const char *filename_mask,
const int recursive);
void __cus__add(struct cus *cus, struct cu *cu);
void cus__add(struct cus *cus, struct cu *cu);
void __cus__remove(struct cus *cus, struct cu *cu);
void cus__remove(struct cus *cus, struct cu *cu);
struct cu *cus__get_next_processable_cu(struct cus *cus);
void cus__set_cu_state(struct cus *cus, struct cu *cu, enum cu_state state);
void cus__print_error_msg(const char *progname, const struct cus *cus,
const char *filename, const int err);
struct cu *cus__find_pair(struct cus *cus, const char *name);
struct cu *cus__find_cu_by_name(struct cus *cus, const char *name);
struct tag *cus__find_struct_by_name(struct cus *cus, struct cu **cu,
const char *name, const int include_decls,
type_id_t *id);
struct tag *cus__find_struct_or_union_by_name(struct cus *cus, struct cu **cu,
const char *name, const int include_decls, type_id_t *id);
void *cu__tag_alloc(struct cu *cu, size_t size);
void cu__tag_free(struct cu *cu, struct tag *tag);
struct tag *cu__find_type_by_name(const struct cu *cu, const char *name, const int include_decls, type_id_t *idp);
struct tag *cus__find_type_by_name(struct cus *cus, struct cu **cu, const char *name,
const int include_decls, type_id_t *id);
struct function *cus__find_function_at_addr(struct cus *cus, uint64_t addr, struct cu **cu);
void cus__for_each_cu(struct cus *cus, int (*iterator)(struct cu *cu, void *cookie),
void *cookie,
struct cu *(*filter)(struct cu *cu));
bool cus__empty(const struct cus *cus);
uint32_t cus__nr_entries(const struct cus *cus);
void cus__lock(struct cus *cus);
void cus__unlock(struct cus *cus);
void *cus__priv(struct cus *cus);
void cus__set_priv(struct cus *cus, void *priv);
void cus__set_loader_exit(struct cus *cus, void (*loader_exit)(struct cus *cus));
struct ptr_table {
void **entries;
uint32_t nr_entries;
uint32_t allocated_entries;
};
struct function;
struct tag;
struct cu;
struct variable;
/* Same as DW_LANG, so that we don't have to include dwarf.h in CTF */
enum dwarf_languages {
LANG_C89 = 0x01, /* ISO C:1989 */
LANG_C = 0x02, /* C */
LANG_Ada83 = 0x03, /* ISO Ada:1983 */
LANG_C_plus_plus = 0x04, /* ISO C++:1998 */
LANG_Cobol74 = 0x05, /* ISO Cobol:1974 */
LANG_Cobol85 = 0x06, /* ISO Cobol:1985 */
LANG_Fortran77 = 0x07, /* ISO FORTRAN 77 */
LANG_Fortran90 = 0x08, /* ISO Fortran 90 */
LANG_Pascal83 = 0x09, /* ISO Pascal:1983 */
LANG_Modula2 = 0x0a, /* ISO Modula-2:1996 */
LANG_Java = 0x0b, /* Java */
LANG_C99 = 0x0c, /* ISO C:1999 */
LANG_Ada95 = 0x0d, /* ISO Ada:1995 */
LANG_Fortran95 = 0x0e, /* ISO Fortran 95 */
LANG_PL1 = 0x0f, /* ISO PL/1:1976 */
LANG_Objc = 0x10, /* Objective-C */
LANG_ObjC_plus_plus = 0x11, /* Objective-C++ */
LANG_UPC = 0x12, /* Unified Parallel C */
LANG_D = 0x13, /* D */
};
/** struct debug_fmt_ops - specific to the underlying debug file format
*
* cu__delete - called at cu__delete(), to give a chance to formats such as
* CTF to keep the .strstab ELF section available till the cu is
* deleted.
*/
struct debug_fmt_ops {
const char *name;
int (*init)(void);
void (*exit)(void);
int (*load_file)(struct cus *cus,
struct conf_load *conf,
const char *filename);
const char *(*tag__decl_file)(const struct tag *tag,
const struct cu *cu);
uint32_t (*tag__decl_line)(const struct tag *tag,
const struct cu *cu);
unsigned long long (*tag__orig_id)(const struct tag *tag,
const struct cu *cu);
void *(*tag__alloc)(struct cu *cu, size_t size);
void (*tag__free)(struct tag *tag, struct cu *cu);
void (*cu__delete)(struct cu *cu);
bool has_alignment_info;
};
#define ARCH_MAX_REGISTER_PARAMS 8
struct cu {
struct list_head node;
struct list_head tags;
struct list_head tool_list; /* To be used by tools such as ctracer */
struct ptr_table types_table;
struct ptr_table functions_table;
struct ptr_table tags_table;
struct rb_root functions;
const char *name;
char *filename;
void *priv;
struct debug_fmt_ops *dfops;
Elf *elf;
Dwfl_Module *dwfl;
struct obstack obstack;
uint32_t cached_symtab_nr_entries;
bool use_obstack;
uint8_t addr_size;
uint8_t extra_dbg_info:1;
uint8_t has_addr_info:1;
uint8_t uses_global_strings:1;
uint8_t little_endian:1;
uint8_t nr_register_params;
int register_params[ARCH_MAX_REGISTER_PARAMS];
int functions_saved;
enum cu_state state;
uint16_t language;
unsigned long nr_inline_expansions;
size_t size_inline_expansions;
uint32_t nr_functions_changed;
uint32_t nr_structures_changed;
size_t max_len_changed_item;
size_t function_bytes_added;
size_t function_bytes_removed;
int build_id_len;
unsigned char build_id[0];
};
struct cu *cu__new(const char *name, uint8_t addr_size,
const unsigned char *build_id, int build_id_len,
const char *filename, bool use_obstack);
void cu__delete(struct cu *cu);
void *cu__malloc(struct cu *cu, size_t size);
void *cu__zalloc(struct cu *cu, size_t size);
void cu__free(struct cu *cu, void *ptr);
int cu__fprintf_ptr_table_stats_csv(struct cu *cu, FILE *fp);
int cus__fprintf_ptr_table_stats_csv_header(FILE *fp);
static inline int cu__cache_symtab(struct cu *cu)
{
int err = dwfl_module_getsymtab(cu->dwfl);
if (err > 0)
cu->cached_symtab_nr_entries = dwfl_module_getsymtab(cu->dwfl);
return err;
}
static inline __pure bool cu__is_c_plus_plus(const struct cu *cu)
{
return cu->language == LANG_C_plus_plus;
}
static inline __pure bool cu__is_c(const struct cu *cu)
{
return cu->language == LANG_C;
}
int lang__str2int(const char *lang);
const char *lang__int2str(int lang);
struct languages {
char *str;
int *entries;
int nr_entries;
bool exclude;
};
int languages__init(struct languages *languages, const char *tool);
int languages__parse(struct languages *languages, const char *tool);
bool languages__in(struct languages *languages, int lang);
bool languages__cu_filtered(struct languages *languages, struct cu *cu, bool verbose);
/**
* cu__for_each_cached_symtab_entry - iterate thru the cached symtab entries
* @cu: struct cu instance
* @id: uint32_t tag id
* @pos: struct GElf_Sym iterator
* @name: char pointer where the symbol_name will be stored
*/
#define cu__for_each_cached_symtab_entry(cu, id, pos, name) \
for (id = 1, \
name = dwfl_module_getsym(cu->dwfl, id, &sym, NULL); \
id < cu->cached_symtab_nr_entries; \
++id, name = dwfl_module_getsym(cu->dwfl, id, &sym, NULL))
/**
* cu__for_each_type - iterate thru all the type tags
* @cu: struct cu instance to iterate
* @id: type_id_t id
* @pos: struct tag iterator
*
* See cu__table_nullify_type_entry and users for the reason for
* the NULL test (hint: CTF Unknown types)
*/
#define cu__for_each_type(cu, id, pos) \
for (id = 1; id < cu->types_table.nr_entries; ++id) \
if (!(pos = cu->types_table.entries[id])) \
continue; \
else
/**
* cu__for_each_struct - iterate thru all the struct tags
* @cu: struct cu instance to iterate
* @pos: struct class iterator
* @id: type_id_t id
*/
#define cu__for_each_struct(cu, id, pos) \
for (id = 1; id < cu->types_table.nr_entries; ++id) \
if (!(pos = tag__class(cu->types_table.entries[id])) || \
!tag__is_struct(class__tag(pos))) \
continue; \
else
/**
* cu__for_each_struct_or_union - iterate thru all the struct and union tags
* @cu: struct cu instance to iterate
* @pos: struct class iterator
* @id: type_id_t tag id
*/
#define cu__for_each_struct_or_union(cu, id, pos) \
for (id = 1; id < cu->types_table.nr_entries; ++id) \
if (!(pos = tag__class(cu->types_table.entries[id])) || \
!(tag__is_struct(class__tag(pos)) || \
tag__is_union(class__tag(pos)))) \
continue; \
else
/**
* cu__for_each_enumeration - iterate thru all the enumeration tags
* @cu: enumeration cu instance to iterate
* @pos: enumeration iterator
* @id: type_id_t id
*/
#define cu__for_each_enumeration(cu, id, pos) \
for (id = 1; id < cu->types_table.nr_entries; ++id) \
if (!(pos = tag__type(cu->types_table.entries[id])) || \
!tag__is_enumeration(type__tag(pos))) \
continue; \
else
/**
* cu__for_each_function - iterate thru all the function tags
* @cu: struct cu instance to iterate
* @pos: struct function iterator
* @id: uint32_t tag id
*/
#define cu__for_each_function(cu, id, pos) \
for (id = 0; id < cu->functions_table.nr_entries; ++id) \
if (!(pos = tag__function(cu->functions_table.entries[id]))) \
continue; \
else
/**
* cu__for_each_variable - iterate thru all the global variable tags
* @cu: struct cu instance to iterate
* @pos: struct tag iterator
* @id: uint32_t tag id
*/
#define cu__for_each_variable(cu, id, pos) \
for (id = 0; id < cu->tags_table.nr_entries; ++id) \
if (!(pos = cu->tags_table.entries[id]) || \
!tag__is_variable(pos)) \
continue; \
else
/**
* cu__for_each_constant - iterate thru all the global constant tags
* @cu: struct cu instance to iterate
* @pos: struct tag iterator
* @id: uint32_t tag id
*/
#define cu__for_each_constant(cu, id, pos) \
for (id = 0; id < cu->tags_table.nr_entries; ++id) \
if (!(pos = cu->tags_table.entries[id]) || \
!tag__is_constant(pos)) \
continue; \
else
/**
* cu__for_each_namespace - iterate thru all the global namespace tags
* @cu: struct cu instance to iterate
* @pos: struct tag iterator
* @id: uint32_t tag id
*/
#define cu__for_each_namespace(cu, id, pos) \
for (id = 0; id < cu->tags_table.nr_entries; ++id) \
if (!(pos = cu->tags_table.entries[id]) || \
!tag__is_namespace(pos)) \
continue; \
else
int cu__add_tag(struct cu *cu, struct tag *tag, uint32_t *id);
int cu__add_tag_with_id(struct cu *cu, struct tag *tag, uint32_t id);
int cu__table_add_tag(struct cu *cu, struct tag *tag, uint32_t *id);
int cu__table_add_tag_with_id(struct cu *cu, struct tag *tag, uint32_t id);
int cu__table_nullify_type_entry(struct cu *cu, uint32_t id);
struct tag *cu__find_base_type_by_name(const struct cu *cu, const char *name,
type_id_t *id);
struct tag *cu__find_base_type_by_name_and_size(const struct cu *cu, const char* name,
uint16_t bit_size, type_id_t *idp);
struct tag *cu__find_enumeration_by_name(const struct cu *cu, const char *name, type_id_t *idp);
struct tag *cu__find_enumeration_by_name_and_size(const struct cu *cu, const char* name,
uint16_t bit_size, type_id_t *idp);
struct tag *cu__find_first_typedef_of_type(const struct cu *cu,
const type_id_t type);
struct tag *cu__find_function_by_name(const struct cu *cu, const char *name);
struct function *cu__find_function_at_addr(const struct cu *cu,
uint64_t addr);
struct tag *cu__function(const struct cu *cu, const uint32_t id);
struct tag *cu__tag(const struct cu *cu, const uint32_t id);
struct tag *cu__type(const struct cu *cu, const type_id_t id);
struct tag *cu__find_struct_by_name(const struct cu *cu, const char *name,
const int include_decls, type_id_t *id);
struct tag *cu__find_struct_or_union_by_name(const struct cu *cu, const char *name,
const int include_decls, type_id_t *id);
bool cu__same_build_id(const struct cu *cu, const struct cu *other);
void cu__account_inline_expansions(struct cu *cu);
int cu__for_all_tags(struct cu *cu,
int (*iterator)(struct tag *tag,
struct cu *cu, void *cookie),
void *cookie);
/** struct tag - basic representation of a debug info element
* @priv - extra data, for instance, DWARF offset, id, decl_{file,line}
* @top_level -
* @shared_tags: used by struct namespace
*/
struct tag {
struct list_head node;
type_id_t type;
uint16_t tag;
bool visited:1;
bool top_level:1;
bool has_btf_type_tag:1;
bool shared_tags:1;
uint8_t recursivity_level;
const char *attribute;
};
// To use with things like type->type_enum == perf_event_type+perf_user_event_type
struct tag_cu {
struct tag *tag;
struct cu *cu;
};
void tag__delete(struct tag *tag, struct cu *cu);
static inline int tag__is_enumeration(const struct tag *tag)
{
return tag->tag == DW_TAG_enumeration_type;
}
static inline int tag__is_namespace(const struct tag *tag)
{
return tag->tag == DW_TAG_namespace;
}
static inline int tag__is_struct(const struct tag *tag)
{
return tag->tag == DW_TAG_structure_type ||
tag->tag == DW_TAG_interface_type ||
tag->tag == DW_TAG_class_type;
}
static inline int tag__is_typedef(const struct tag *tag)
{
return tag->tag == DW_TAG_typedef;
}
static inline int tag__is_rvalue_reference_type(const struct tag *tag)
{
return tag->tag == DW_TAG_rvalue_reference_type;
}
static inline int tag__is_union(const struct tag *tag)
{
return tag->tag == DW_TAG_union_type;
}
static inline int tag__is_const(const struct tag *tag)
{
return tag->tag == DW_TAG_const_type;
}
static inline int tag__is_pointer(const struct tag *tag)
{
return tag->tag == DW_TAG_pointer_type;
}
static inline int tag__is_pointer_to(const struct tag *tag, type_id_t type)
{
return tag__is_pointer(tag) && tag->type == type;
}
static inline bool tag__is_variable(const struct tag *tag)
{
return tag->tag == DW_TAG_variable;
}
static inline bool tag__is_constant(const struct tag *tag)
{
return tag->tag == DW_TAG_constant;
}
static inline bool tag__is_volatile(const struct tag *tag)
{
return tag->tag == DW_TAG_volatile_type;
}
static inline bool tag__is_atomic(const struct tag *tag)
{
return tag->tag == DW_TAG_atomic_type;
}
static inline bool tag__is_restrict(const struct tag *tag)
{
return tag->tag == DW_TAG_restrict_type;
}
static inline int tag__is_modifier(const struct tag *tag)
{
return tag__is_const(tag) ||
tag__is_volatile(tag) ||
tag__is_restrict(tag) ||
tag__is_atomic(tag);
}
static inline bool tag__has_namespace(const struct tag *tag)
{
return tag__is_struct(tag) ||
tag__is_union(tag) ||
tag__is_namespace(tag) ||
tag__is_enumeration(tag);
}
/**
* tag__is_tag_type - is this tag derived from the 'type' class?
* @tag - tag queried
*/
static inline int tag__is_type(const struct tag *tag)
{
return tag__is_union(tag) ||
tag__is_struct(tag) ||
tag__is_typedef(tag) ||
tag__is_rvalue_reference_type(tag) ||
tag__is_enumeration(tag);
}
/**
* tag__is_tag_type - is this one of the possible types for a tag?
* @tag - tag queried
*/
static inline int tag__is_tag_type(const struct tag *tag)
{
return tag__is_type(tag) ||
tag->tag == DW_TAG_array_type ||
tag->tag == DW_TAG_string_type ||
tag->tag == DW_TAG_base_type ||
tag->tag == DW_TAG_const_type ||
tag->tag == DW_TAG_pointer_type ||
tag->tag == DW_TAG_rvalue_reference_type ||
tag->tag == DW_TAG_ptr_to_member_type ||
tag->tag == DW_TAG_reference_type ||
tag->tag == DW_TAG_restrict_type ||
tag->tag == DW_TAG_subroutine_type ||
tag->tag == DW_TAG_unspecified_type ||
tag->tag == DW_TAG_volatile_type ||
tag->tag == DW_TAG_atomic_type ||
tag->tag == DW_TAG_unspecified_type ||
tag->tag == DW_TAG_LLVM_annotation;
}
static inline const char *tag__decl_file(const struct tag *tag,
const struct cu *cu)
{
if (cu->dfops && cu->dfops->tag__decl_file)
return cu->dfops->tag__decl_file(tag, cu);
return NULL;
}
static inline uint32_t tag__decl_line(const struct tag *tag,
const struct cu *cu)
{
if (cu->dfops && cu->dfops->tag__decl_line)
return cu->dfops->tag__decl_line(tag, cu);
return 0;
}
static inline unsigned long long tag__orig_id(const struct tag *tag,
const struct cu *cu)
{
if (cu->dfops && cu->dfops->tag__orig_id)
return cu->dfops->tag__orig_id(tag, cu);
return 0;
}
size_t tag__fprintf_decl_info(const struct tag *tag,
const struct cu *cu, FILE *fp);
size_t tag__fprintf(struct tag *tag, const struct cu *cu,
const struct conf_fprintf *conf, FILE *fp);
const char *tag__name(const struct tag *tag, const struct cu *cu,
char *bf, size_t len, const struct conf_fprintf *conf);
void tag__not_found_die(const char *file, int line, const char *func, int tag, const char *name);
#define tag__assert_search_result(result, tag, name) \
do { if (!result) tag__not_found_die(__FILE__,\
__LINE__, __func__, tag, name); } while (0)
size_t tag__size(const struct tag *tag, const struct cu *cu);
size_t tag__nr_cachelines(const struct conf_fprintf *conf, const struct tag *tag, const struct cu *cu);
struct tag *tag__follow_typedef(const struct tag *tag, const struct cu *cu);
struct tag *tag__strip_typedefs_and_modifiers(const struct tag *tag, const struct cu *cu);
size_t __tag__id_not_found_fprintf(FILE *fp, type_id_t id,
const char *fn, int line);
#define tag__id_not_found_fprintf(fp, id) \
__tag__id_not_found_fprintf(fp, id, __func__, __LINE__)
int __tag__has_type_loop(const struct tag *tag, const struct tag *type,
char *bf, size_t len, FILE *fp,
const char *fn, int line);
#define tag__has_type_loop(tag, type, bf, len, fp) \
__tag__has_type_loop(tag, type, bf, len, fp, __func__, __LINE__)
struct ptr_to_member_type {
struct tag tag;
type_id_t containing_type;
};
static inline struct ptr_to_member_type *
tag__ptr_to_member_type(const struct tag *tag)
{
return (struct ptr_to_member_type *)tag;
}
struct llvm_annotation {
const char *value;
int16_t component_idx;
struct list_head node;
};
/** struct btf_type_tag_type - representing a btf_type_tag annotation
*
* @tag - DW_TAG_LLVM_annotation tag
* @value - btf_type_tag value string
* @node - list_head node
*/
struct btf_type_tag_type {
struct tag tag;
const char *value;
struct list_head node;
};
/** The struct btf_type_tag_ptr_type - type containing both pointer type and
* its btf_type_tag annotations
*
* @tag - pointer type tag
* @tags - btf_type_tag annotations for the pointer type
*/
struct btf_type_tag_ptr_type {
struct tag tag;
struct list_head tags;
};
static inline struct btf_type_tag_ptr_type *tag__btf_type_tag_ptr(struct tag *tag)
{
return (struct btf_type_tag_ptr_type *)tag;
}
static inline struct btf_type_tag_type *tag__btf_type_tag(struct tag *tag)
{
return (struct btf_type_tag_type *)tag;
}
/** struct namespace - base class for enums, structs, unions, typedefs, etc
*
* @tags - class_member, enumerators, etc
* @shared_tags: if this bit is set, don't free the entries in @tags
*/
struct namespace {
struct tag tag;
const char *name;
struct list_head tags;
struct list_head annots;
};
static inline struct namespace *tag__namespace(const struct tag *tag)
{
return (struct namespace *)tag;
}
void namespace__delete(struct namespace *nspace, struct cu *cu);
static inline __pure bool namespace__shared_tags(struct namespace *nspace)
{
return nspace->tag.shared_tags;
}
/**
* namespace__for_each_tag - iterate thru all the tags
* @nspace: struct namespace instance to iterate
* @pos: struct tag iterator
*/
#define namespace__for_each_tag(nspace, pos) \
list_for_each_entry(pos, &(nspace)->tags, node)
/**
* namespace__for_each_tag_safe_reverse - safely iterate thru all the tags, in reverse order
* @nspace: struct namespace instance to iterate
* @pos: struct tag iterator
* @n: struct class_member temp iterator
*/
#define namespace__for_each_tag_safe_reverse(nspace, pos, n) \
list_for_each_entry_safe_reverse(pos, n, &(nspace)->tags, node)
void namespace__add_tag(struct namespace *nspace, struct tag *tag);
struct ip_tag {
struct tag tag;
uint64_t addr;
};
struct inline_expansion {
struct ip_tag ip;
size_t size;
uint64_t high_pc;
};
static inline struct inline_expansion *
tag__inline_expansion(const struct tag *tag)
{
return (struct inline_expansion *)tag;
}
struct label {
struct ip_tag ip;
const char *name;
};
static inline struct label *tag__label(const struct tag *tag)
{
return (struct label *)tag;
}
static inline const char *label__name(const struct label *label)
{
return label->name;
}
enum vscope {
VSCOPE_UNKNOWN,
VSCOPE_LOCAL,
VSCOPE_GLOBAL,
VSCOPE_REGISTER,
VSCOPE_OPTIMIZED
} __attribute__((packed));
struct location {
Dwarf_Op *expr;
size_t exprlen;
};
struct variable {
struct ip_tag ip;
const char *name;
uint8_t external:1;
uint8_t declaration:1;
uint8_t has_specification:1;
uint8_t artificial:1;
uint8_t top_level:1;
enum vscope scope;
struct location location;
struct hlist_node tool_hnode;
struct list_head annots;
struct variable *spec;
};
static inline struct variable *tag__variable(const struct tag *tag)
{
return (struct variable *)tag;
}
enum vscope variable__scope(const struct variable *var);
const char *variable__scope_str(const struct variable *var);
const char *variable__name(const struct variable *var);
const char *variable__type_name(const struct variable *var,
const struct cu *cu, char *bf, size_t len);
struct constant {
struct tag tag;
const char *name;
uint64_t value;
};
static inline struct constant *tag__constant(const struct tag *tag)
{
return (struct constant *)tag;
}
static inline const char *constant__name(const struct constant *constant)
{
return constant->name;
}
static inline uint64_t constant__value(const struct constant *constant)
{
return constant->value;
}
struct lexblock {
struct ip_tag ip;
struct list_head tags;
uint32_t size;
uint16_t nr_inline_expansions;
uint16_t nr_labels;
uint16_t nr_variables;
uint16_t nr_lexblocks;
uint32_t size_inline_expansions;
};
static inline struct lexblock *tag__lexblock(const struct tag *tag)
{
return (struct lexblock *)tag;
}
void lexblock__delete(struct lexblock *lexblock, struct cu *cu);
struct function;
void lexblock__add_inline_expansion(struct lexblock *lexblock,
struct inline_expansion *exp);
void lexblock__add_label(struct lexblock *lexblock, struct label *label);
void lexblock__add_lexblock(struct lexblock *lexblock, struct lexblock *child);
void lexblock__add_tag(struct lexblock *lexblock, struct tag *tag);
void lexblock__add_variable(struct lexblock *lexblock, struct variable *var);
size_t lexblock__fprintf(const struct lexblock *lexblock, const struct cu *cu,
struct function *function, uint16_t indent,
const struct conf_fprintf *conf, FILE *fp);
struct parameter {
struct tag tag;
const char *name;
uint8_t optimized:1;
uint8_t unexpected_reg:1;
uint8_t has_loc:1;
};
static inline struct parameter *tag__parameter(const struct tag *tag)
{
return (struct parameter *)tag;
}
static inline const char *parameter__name(const struct parameter *parm)
{
return parm->name;
}
/* struct template_type_param - parameters to a template, stored in 'struct type'
*/
struct template_type_param {
struct tag tag;
const char *name;
};
void template_type_param__delete(struct template_type_param *ttparam, struct cu *cu);
struct template_value_param {
struct tag tag;
const char *name;
uint64_t const_value;
uint64_t default_value;
};
void template_value_param__delete(struct template_value_param *ttparam, struct cu *cu);
/* struct template_parameter_pack - list of DW_TAG_template_type_param
*/
struct template_parameter_pack {
struct tag tag;
const char *name;
struct list_head params;
};
void template_parameter_pack__delete(struct template_parameter_pack *pack, struct cu *cu);
static inline struct template_parameter_pack *tag__template_parameter_pack(const struct tag *tag)
{
return (struct template_parameter_pack *)tag;
}
void template_parameter_pack__add(struct template_parameter_pack *pack, struct template_type_param *param);
/* struct formal_parameter_pack - list of DW_TAG_formal_parameter
*/
struct formal_parameter_pack {
struct tag tag;
struct list_head params;
};