123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289 |
- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef __PERF_SYMBOL
- #define __PERF_SYMBOL 1
- #include <linux/types.h>
- #include <linux/refcount.h>
- #include <stdbool.h>
- #include <stdint.h>
- #include <linux/list.h>
- #include <linux/rbtree.h>
- #include <stdio.h>
- #include "path.h"
- #include "symbol_conf.h"
- #include "spark.h"
- #ifdef HAVE_LIBELF_SUPPORT
- #include <libelf.h>
- #include <gelf.h>
- #endif
- #include <elf.h>
- struct dso;
- struct map;
- struct maps;
- struct option;
- struct build_id;
- /*
- * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
- * for newer versions we can use mmap to reduce memory usage:
- */
- #ifdef ELF_C_READ_MMAP
- # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
- #else
- # define PERF_ELF_C_READ_MMAP ELF_C_READ
- #endif
- #ifdef HAVE_LIBELF_SUPPORT
- Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
- GElf_Shdr *shp, const char *name, size_t *idx);
- #endif
- /** struct symbol - symtab entry
- *
- * @ignore - resolvable but tools ignore it (e.g. idle routines)
- */
- struct symbol {
- struct rb_node rb_node;
- u64 start;
- u64 end;
- u16 namelen;
- u8 type:4;
- u8 binding:4;
- u8 idle:1;
- u8 ignore:1;
- u8 inlined:1;
- u8 arch_sym;
- bool annotate2;
- char name[];
- };
- void symbol__delete(struct symbol *sym);
- void symbols__delete(struct rb_root_cached *symbols);
- /* symbols__for_each_entry - iterate over symbols (rb_root)
- *
- * @symbols: the rb_root of symbols
- * @pos: the 'struct symbol *' to use as a loop cursor
- * @nd: the 'struct rb_node *' to use as a temporary storage
- */
- #define symbols__for_each_entry(symbols, pos, nd) \
- for (nd = rb_first_cached(symbols); \
- nd && (pos = rb_entry(nd, struct symbol, rb_node)); \
- nd = rb_next(nd))
- static inline size_t symbol__size(const struct symbol *sym)
- {
- return sym->end - sym->start;
- }
- struct strlist;
- struct intlist;
- struct symbol_name_rb_node {
- struct rb_node rb_node;
- struct symbol sym;
- };
- static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
- {
- return path__join(bf, size, symbol_conf.symfs, path);
- }
- #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
- extern int vmlinux_path__nr_entries;
- extern char **vmlinux_path;
- static inline void *symbol__priv(struct symbol *sym)
- {
- return ((void *)sym) - symbol_conf.priv_size;
- }
- struct ref_reloc_sym {
- const char *name;
- u64 addr;
- u64 unrelocated_addr;
- };
- struct addr_location {
- struct thread *thread;
- struct maps *maps;
- struct map *map;
- struct symbol *sym;
- const char *srcline;
- u64 addr;
- char level;
- u8 filtered;
- u8 cpumode;
- s32 cpu;
- s32 socket;
- };
- int dso__load(struct dso *dso, struct map *map);
- int dso__load_vmlinux(struct dso *dso, struct map *map,
- const char *vmlinux, bool vmlinux_allocated);
- int dso__load_vmlinux_path(struct dso *dso, struct map *map);
- int __dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
- bool no_kcore);
- int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map);
- void dso__insert_symbol(struct dso *dso,
- struct symbol *sym);
- void dso__delete_symbol(struct dso *dso,
- struct symbol *sym);
- struct symbol *dso__find_symbol(struct dso *dso, u64 addr);
- struct symbol *dso__find_symbol_by_name(struct dso *dso, const char *name);
- struct symbol *symbol__next_by_name(struct symbol *sym);
- struct symbol *dso__first_symbol(struct dso *dso);
- struct symbol *dso__last_symbol(struct dso *dso);
- struct symbol *dso__next_symbol(struct symbol *sym);
- enum dso_type dso__type_fd(int fd);
- int filename__read_build_id(const char *filename, struct build_id *id);
- int sysfs__read_build_id(const char *filename, struct build_id *bid);
- int modules__parse(const char *filename, void *arg,
- int (*process_module)(void *arg, const char *name,
- u64 start, u64 size));
- int filename__read_debuglink(const char *filename, char *debuglink,
- size_t size);
- struct perf_env;
- int symbol__init(struct perf_env *env);
- void symbol__exit(void);
- void symbol__elf_init(void);
- int symbol__annotation_init(void);
- struct symbol *symbol__new(u64 start, u64 len, u8 binding, u8 type, const char *name);
- size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
- const struct addr_location *al,
- bool unknown_as_addr,
- bool print_offsets, FILE *fp);
- size_t symbol__fprintf_symname_offs(const struct symbol *sym,
- const struct addr_location *al, FILE *fp);
- size_t __symbol__fprintf_symname(const struct symbol *sym,
- const struct addr_location *al,
- bool unknown_as_addr, FILE *fp);
- size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
- size_t symbol__fprintf(struct symbol *sym, FILE *fp);
- bool symbol__restricted_filename(const char *filename,
- const char *restricted_filename);
- int symbol__config_symfs(const struct option *opt __maybe_unused,
- const char *dir, int unset __maybe_unused);
- struct symsrc;
- #ifdef HAVE_LIBBFD_SUPPORT
- int dso__load_bfd_symbols(struct dso *dso, const char *debugfile);
- #endif
- int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
- struct symsrc *runtime_ss, int kmodule);
- int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss);
- char *dso__demangle_sym(struct dso *dso, int kmodule, const char *elf_name);
- void __symbols__insert(struct rb_root_cached *symbols, struct symbol *sym,
- bool kernel);
- void symbols__insert(struct rb_root_cached *symbols, struct symbol *sym);
- void symbols__fixup_duplicate(struct rb_root_cached *symbols);
- void symbols__fixup_end(struct rb_root_cached *symbols);
- void maps__fixup_end(struct maps *maps);
- typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
- int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
- bool *is_64_bit);
- #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
- struct kcore_extract {
- char *kcore_filename;
- u64 addr;
- u64 offs;
- u64 len;
- char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
- int fd;
- };
- int kcore_extract__create(struct kcore_extract *kce);
- void kcore_extract__delete(struct kcore_extract *kce);
- int kcore_copy(const char *from_dir, const char *to_dir);
- int compare_proc_modules(const char *from, const char *to);
- int setup_list(struct strlist **list, const char *list_str,
- const char *list_name);
- int setup_intlist(struct intlist **list, const char *list_str,
- const char *list_name);
- #ifdef HAVE_LIBELF_SUPPORT
- bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
- void arch__sym_update(struct symbol *s, GElf_Sym *sym);
- #endif
- const char *arch__normalize_symbol_name(const char *name);
- #define SYMBOL_A 0
- #define SYMBOL_B 1
- void arch__symbols__fixup_end(struct symbol *p, struct symbol *c);
- int arch__compare_symbol_names(const char *namea, const char *nameb);
- int arch__compare_symbol_names_n(const char *namea, const char *nameb,
- unsigned int n);
- int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb);
- enum symbol_tag_include {
- SYMBOL_TAG_INCLUDE__NONE = 0,
- SYMBOL_TAG_INCLUDE__DEFAULT_ONLY
- };
- int symbol__match_symbol_name(const char *namea, const char *nameb,
- enum symbol_tag_include includes);
- /* structure containing an SDT note's info */
- struct sdt_note {
- char *name; /* name of the note*/
- char *provider; /* provider name */
- char *args;
- bool bit32; /* whether the location is 32 bits? */
- union { /* location, base and semaphore addrs */
- Elf64_Addr a64[3];
- Elf32_Addr a32[3];
- } addr;
- struct list_head note_list; /* SDT notes' list */
- };
- int get_sdt_note_list(struct list_head *head, const char *target);
- int cleanup_sdt_note_list(struct list_head *sdt_notes);
- int sdt_notes__get_count(struct list_head *start);
- #define SDT_PROBES_SCN ".probes"
- #define SDT_BASE_SCN ".stapsdt.base"
- #define SDT_NOTE_SCN ".note.stapsdt"
- #define SDT_NOTE_TYPE 3
- #define SDT_NOTE_NAME "stapsdt"
- #define NR_ADDR 3
- enum {
- SDT_NOTE_IDX_LOC = 0,
- SDT_NOTE_IDX_BASE,
- SDT_NOTE_IDX_REFCTR,
- };
- struct mem_info *mem_info__new(void);
- struct mem_info *mem_info__get(struct mem_info *mi);
- void mem_info__put(struct mem_info *mi);
- static inline void __mem_info__zput(struct mem_info **mi)
- {
- mem_info__put(*mi);
- *mi = NULL;
- }
- #define mem_info__zput(mi) __mem_info__zput(&mi)
- #endif /* __PERF_SYMBOL */
|