diff options
Diffstat (limited to 'tools/perf/util/symbol.h')
| -rw-r--r-- | tools/perf/util/symbol.h | 285 | 
1 files changed, 175 insertions, 110 deletions
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 038f2201ee0..615c752dd76 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -5,40 +5,57 @@  #include <stdbool.h>  #include <stdint.h>  #include "map.h" +#include "../perf.h"  #include <linux/list.h>  #include <linux/rbtree.h>  #include <stdio.h> +#include <byteswap.h> +#include <libgen.h> +#include "build-id.h" +#include "event.h" + +#ifdef HAVE_LIBELF_SUPPORT +#include <libelf.h> +#include <gelf.h> +#endif +#include <elf.h> + +#include "dso.h" -#ifdef HAVE_CPLUS_DEMANGLE +#ifdef HAVE_CPLUS_DEMANGLE_SUPPORT  extern char *cplus_demangle(const char *, int); -static inline char *bfd_demangle(void __used *v, const char *c, int i) +static inline char *bfd_demangle(void __maybe_unused *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) +static inline char *bfd_demangle(void __maybe_unused *v, +				 const char __maybe_unused *c, +				 int __maybe_unused i)  {  	return NULL;  }  #else +#define PACKAGE 'perf'  #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 +#ifdef HAVE_LIBELF_MMAP_SUPPORT  # 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 +extern Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, +				GElf_Shdr *shp, const char *name, size_t *idx);  #endif  #ifndef DMGL_PARAMS @@ -46,32 +63,64 @@ char *strxfrchar(char *s, char from, char to);  #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 *self); +void symbol__delete(struct symbol *sym); +void symbols__delete(struct rb_root *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(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 + 1; +}  struct strlist;  struct symbol_conf {  	unsigned short	priv_size; +	unsigned short	nr_events;  	bool		try_vmlinux_path, +			ignore_vmlinux, +			show_kernel_path,  			use_modules,  			sort_by_name,  			show_nr_samples, +			show_total_period,  			use_callchain, +			cumulate_callchain,  			exclude_other,  			show_cpu_utilization, -			initialized; +			initialized, +			kptr_restrict, +			annotate_asm_raw, +			annotate_src, +			event_group, +			demangle, +			filter_relative;  	const char	*vmlinux_name, +			*kallsyms_name,  			*source_prefix,  			*field_sep;  	const char	*default_guest_vmlinux_name, @@ -84,14 +133,21 @@ struct symbol_conf {  			*col_width_list_str;         struct strlist	*dso_list,  			*comm_list, -			*sym_list; +			*sym_list, +			*dso_from_list, +			*dso_to_list, +			*sym_from_list, +			*sym_to_list; +	const char	*symfs;  };  extern struct symbol_conf symbol_conf; +extern int vmlinux_path__nr_entries; +extern char **vmlinux_path; -static inline void *symbol__priv(struct symbol *self) +static inline void *symbol__priv(struct symbol *sym)  { -	return ((void *)self) - symbol_conf.priv_size; +	return ((void *)sym) - symbol_conf.priv_size;  }  struct ref_reloc_sym { @@ -107,126 +163,135 @@ struct map_symbol {  	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 mem_info { +	struct addr_map_symbol iaddr; +	struct addr_map_symbol daddr; +	union perf_mem_data_src data_src; +}; +  struct addr_location { +	struct machine *machine;  	struct thread *thread;  	struct map    *map;  	struct symbol *sym;  	u64	      addr;  	char	      level; -	bool	      filtered; +	u8	      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		 slen_calculated:1; -	u8		 has_build_id:1; -	u8		 hit:1; -	u8		 annotate_warned:1; -	u8		 sname_alloc:1; -	u8		 lname_alloc:1; -	unsigned char	 origin; -	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 symsrc { +	char *name; +	int fd; +	enum dso_binary_type type; -struct dso *dso__new(const char *name); -struct dso *dso__new_kernel(const char *name); -void dso__delete(struct dso *self); +#ifdef HAVE_LIBELF_SUPPORT +	Elf *elf; +	GElf_Ehdr ehdr; -int dso__name_len(const struct dso *self); +	Elf_Scn *opdsec; +	size_t opdidx; +	GElf_Shdr opdshdr; -bool dso__loaded(const struct dso *self, enum map_type type); -bool dso__sorted_by_name(const struct dso *self, enum map_type type); +	Elf_Scn *symtab; +	GElf_Shdr symshdr; -static inline void dso__set_loaded(struct dso *self, enum map_type type) -{ -	self->loaded |= (1 << type); -} +	Elf_Scn *dynsym; +	size_t dynsym_idx; +	GElf_Shdr dynshdr; -void dso__sort_by_name(struct dso *self, enum map_type type); - -struct dso *__dsos__findnew(struct list_head *head, const char *name); +	bool adjust_symbols; +#endif +}; -int dso__load(struct dso *self, struct map *map, symbol_filter_t filter); -int dso__load_vmlinux_path(struct dso *self, struct map *map, +void symsrc__destroy(struct symsrc *ss); +int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name, +		 enum dso_binary_type type); +bool symsrc__has_symtab(struct symsrc *ss); +bool symsrc__possibly_runtime(struct symsrc *ss); + +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, bool vmlinux_allocated, +		      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 *self, const char *filename, struct map *map, +int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,  		       symbol_filter_t filter); -int machine__load_kallsyms(struct machine *self, const char *filename, -			   enum map_type type, symbol_filter_t filter); -int machine__load_vmlinux_path(struct machine *self, 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 *self, FILE *fp, bool with_hits); -size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp); -size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits); - -size_t dso__fprintf_buildid(struct dso *self, FILE *fp); -size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp); -size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp); - -enum dso_origin { -	DSO__ORIG_KERNEL = 0, -	DSO__ORIG_GUEST_KERNEL, -	DSO__ORIG_JAVA_JIT, -	DSO__ORIG_BUILD_ID_CACHE, -	DSO__ORIG_FEDORA, -	DSO__ORIG_UBUNTU, -	DSO__ORIG_BUILDID, -	DSO__ORIG_DSO, -	DSO__ORIG_GUEST_KMODULE, -	DSO__ORIG_KMODULE, -	DSO__ORIG_NOT_FOUND, -}; -char dso__symtab_origin(const struct dso *self); -void dso__set_long_name(struct dso *self, char *name); -void dso__set_build_id(struct dso *self, void *build_id); -void dso__read_running_kernel_build_id(struct dso *self, struct machine *machine); -struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr); -struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type, +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 *self, int len, char *bf); -int kallsyms__parse(const char *filename, void *arg, -		    int (*process_symbol)(void *arg, const char *name, -					  char type, u64 start)); - -void machine__destroy_kernel_maps(struct machine *self); -int __machine__create_kernel_maps(struct machine *self, struct dso *kernel); -int machine__create_kernel_maps(struct machine *self); - -int machines__create_kernel_maps(struct rb_root *self, pid_t pid); -int machines__create_guest_kernel_maps(struct rb_root *self); -void machines__destroy_guest_kernel_maps(struct rb_root *self); +int modules__parse(const char *filename, void *arg, +		   int (*process_module)(void *arg, const char *name, +					 u64 start)); +int filename__read_debuglink(const char *filename, char *debuglink, +			     size_t size);  int symbol__init(void);  void symbol__exit(void); +void symbol__elf_init(void); +struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name); +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); +size_t symbol__fprintf(struct symbol *sym, FILE *fp);  bool symbol_type__is_a(char symbol_type, enum map_type map_type); +bool symbol__restricted_filename(const char *filename, +				 const char *restricted_filename); +bool symbol__is_idle(struct symbol *sym); + +int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss, +		  struct symsrc *runtime_ss, symbol_filter_t filter, +		  int kmodule); +int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, +				struct map *map, symbol_filter_t filter); + +void symbols__insert(struct rb_root *symbols, struct symbol *sym); +void symbols__fixup_duplicate(struct rb_root *symbols); +void symbols__fixup_end(struct rb_root *symbols); +void __map_groups__fixup_end(struct map_groups *mg, enum map_type type); + +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); -size_t machine__fprintf_vmlinux_path(struct machine *self, FILE *fp); +int setup_list(struct strlist **list, const char *list_str, +	       const char *list_name);  #endif /* __PERF_SYMBOL */  | 
