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