diff options
Diffstat (limited to 'tools/perf/util/symbol.h')
-rw-r--r-- | tools/perf/util/symbol.h | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h new file mode 100644 index 00000000..ac49ef20 --- /dev/null +++ b/tools/perf/util/symbol.h @@ -0,0 +1,270 @@ +#ifndef __PERF_SYMBOL +#define __PERF_SYMBOL 1 + +#include <linux/types.h> +#include <stdbool.h> +#include <stdint.h> +#include "map.h" +#include "../perf.h" +#include <linux/list.h> +#include <linux/rbtree.h> +#include <stdio.h> + +#ifdef HAVE_CPLUS_DEMANGLE +extern char *cplus_demangle(const char *, int); + +static inline char *bfd_demangle(void __used *v, const char *c, int i) +{ + return cplus_demangle(c, i); +} +#else +#ifdef NO_DEMANGLE +static inline char *bfd_demangle(void __used *v, const char __used *c, + int __used i) +{ + return NULL; +} +#else +#include <bfd.h> +#endif +#endif + +int hex2u64(const char *ptr, u64 *val); +char *strxfrchar(char *s, char from, char to); + +/* + * 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 LIBELF_NO_MMAP +# define PERF_ELF_C_READ_MMAP ELF_C_READ +#else +# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP +#endif + +#ifndef DMGL_PARAMS +#define DMGL_PARAMS (1 << 0) /* Include function args */ +#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ +#endif + +#define BUILD_ID_SIZE 20 + +/** 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 binding; + bool ignore; + char name[0]; +}; + +void symbol__delete(struct symbol *sym); + +struct strlist; + +struct symbol_conf { + unsigned short priv_size; + unsigned short nr_events; + bool try_vmlinux_path, + show_kernel_path, + use_modules, + sort_by_name, + show_nr_samples, + show_total_period, + use_callchain, + exclude_other, + show_cpu_utilization, + initialized, + kptr_restrict, + annotate_asm_raw, + annotate_src; + const char *vmlinux_name, + *kallsyms_name, + *source_prefix, + *field_sep; + const char *default_guest_vmlinux_name, + *default_guest_kallsyms, + *default_guest_modules; + const char *guestmount; + const char *dso_list_str, + *comm_list_str, + *sym_list_str, + *col_width_list_str; + struct strlist *dso_list, + *comm_list, + *sym_list, + *dso_from_list, + *dso_to_list, + *sym_from_list, + *sym_to_list; + const char *symfs; +}; + +extern struct symbol_conf symbol_conf; + +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 map_symbol { + struct map *map; + struct symbol *sym; + bool unfolded; + bool has_children; +}; + +struct addr_map_symbol { + struct map *map; + struct symbol *sym; + u64 addr; + u64 al_addr; +}; + +struct branch_info { + struct addr_map_symbol from; + struct addr_map_symbol to; + struct branch_flags flags; +}; + +struct addr_location { + struct thread *thread; + struct map *map; + struct symbol *sym; + u64 addr; + char level; + bool filtered; + u8 cpumode; + s32 cpu; +}; + +enum dso_kernel_type { + DSO_TYPE_USER = 0, + DSO_TYPE_KERNEL, + DSO_TYPE_GUEST_KERNEL +}; + +struct dso { + struct list_head node; + struct rb_root symbols[MAP__NR_TYPES]; + struct rb_root symbol_names[MAP__NR_TYPES]; + enum dso_kernel_type kernel; + u8 adjust_symbols:1; + u8 has_build_id:1; + u8 hit:1; + u8 annotate_warned:1; + u8 sname_alloc:1; + u8 lname_alloc:1; + unsigned char symtab_type; + u8 sorted_by_name; + u8 loaded; + u8 build_id[BUILD_ID_SIZE]; + const char *short_name; + char *long_name; + u16 long_name_len; + u16 short_name_len; + char name[0]; +}; + +struct dso *dso__new(const char *name); +void dso__delete(struct dso *dso); + +int dso__name_len(const struct dso *dso); + +bool dso__loaded(const struct dso *dso, enum map_type type); +bool dso__sorted_by_name(const struct dso *dso, enum map_type type); + +static inline void dso__set_loaded(struct dso *dso, enum map_type type) +{ + dso->loaded |= (1 << type); +} + +void dso__sort_by_name(struct dso *dso, enum map_type type); + +struct dso *__dsos__findnew(struct list_head *head, const char *name); + +int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter); +int dso__load_vmlinux(struct dso *dso, struct map *map, + const char *vmlinux, symbol_filter_t filter); +int dso__load_vmlinux_path(struct dso *dso, struct map *map, + symbol_filter_t filter); +int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, + symbol_filter_t filter); +int machine__load_kallsyms(struct machine *machine, const char *filename, + enum map_type type, symbol_filter_t filter); +int machine__load_vmlinux_path(struct machine *machine, enum map_type type, + symbol_filter_t filter); + +size_t __dsos__fprintf(struct list_head *head, FILE *fp); + +size_t machine__fprintf_dsos_buildid(struct machine *machine, + FILE *fp, bool with_hits); +size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp); +size_t machines__fprintf_dsos_buildid(struct rb_root *machines, + FILE *fp, bool with_hits); +size_t dso__fprintf_buildid(struct dso *dso, FILE *fp); +size_t dso__fprintf_symbols_by_name(struct dso *dso, + enum map_type type, FILE *fp); +size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp); + +enum symtab_type { + SYMTAB__KALLSYMS = 0, + SYMTAB__GUEST_KALLSYMS, + SYMTAB__JAVA_JIT, + SYMTAB__BUILD_ID_CACHE, + SYMTAB__FEDORA_DEBUGINFO, + SYMTAB__UBUNTU_DEBUGINFO, + SYMTAB__BUILDID_DEBUGINFO, + SYMTAB__SYSTEM_PATH_DSO, + SYMTAB__GUEST_KMODULE, + SYMTAB__SYSTEM_PATH_KMODULE, + SYMTAB__NOT_FOUND, +}; + +char dso__symtab_origin(const struct dso *dso); +void dso__set_long_name(struct dso *dso, char *name); +void dso__set_build_id(struct dso *dso, void *build_id); +void dso__read_running_kernel_build_id(struct dso *dso, + struct machine *machine); +struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, + u64 addr); +struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, + const char *name); + +int filename__read_build_id(const char *filename, void *bf, size_t size); +int sysfs__read_build_id(const char *filename, void *bf, size_t size); +bool __dsos__read_build_ids(struct list_head *head, bool with_hits); +int build_id__sprintf(const u8 *build_id, int len, char *bf); +int kallsyms__parse(const char *filename, void *arg, + int (*process_symbol)(void *arg, const char *name, + char type, u64 start, u64 end)); + +void machine__destroy_kernel_maps(struct machine *machine); +int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel); +int machine__create_kernel_maps(struct machine *machine); + +int machines__create_kernel_maps(struct rb_root *machines, pid_t pid); +int machines__create_guest_kernel_maps(struct rb_root *machines); +void machines__destroy_guest_kernel_maps(struct rb_root *machines); + +int symbol__init(void); +void symbol__exit(void); +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, FILE *fp); +bool symbol_type__is_a(char symbol_type, enum map_type map_type); + +size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); + +#endif /* __PERF_SYMBOL */ |