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      1 #ifndef __PERF_DSO
      2 #define __PERF_DSO
      3 
      4 #include <linux/types.h>
      5 #include <linux/rbtree.h>
      6 #include <stdbool.h>
      7 #include "types.h"
      8 #include "map.h"
      9 
     10 enum dso_binary_type {
     11 	DSO_BINARY_TYPE__KALLSYMS = 0,
     12 	DSO_BINARY_TYPE__GUEST_KALLSYMS,
     13 	DSO_BINARY_TYPE__VMLINUX,
     14 	DSO_BINARY_TYPE__GUEST_VMLINUX,
     15 	DSO_BINARY_TYPE__JAVA_JIT,
     16 	DSO_BINARY_TYPE__DEBUGLINK,
     17 	DSO_BINARY_TYPE__BUILD_ID_CACHE,
     18 	DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
     19 	DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
     20 	DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
     21 	DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
     22 	DSO_BINARY_TYPE__GUEST_KMODULE,
     23 	DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
     24 	DSO_BINARY_TYPE__KCORE,
     25 	DSO_BINARY_TYPE__GUEST_KCORE,
     26 	DSO_BINARY_TYPE__NOT_FOUND,
     27 };
     28 
     29 enum dso_kernel_type {
     30 	DSO_TYPE_USER = 0,
     31 	DSO_TYPE_KERNEL,
     32 	DSO_TYPE_GUEST_KERNEL
     33 };
     34 
     35 enum dso_swap_type {
     36 	DSO_SWAP__UNSET,
     37 	DSO_SWAP__NO,
     38 	DSO_SWAP__YES,
     39 };
     40 
     41 #define DSO__SWAP(dso, type, val)			\
     42 ({							\
     43 	type ____r = val;				\
     44 	BUG_ON(dso->needs_swap == DSO_SWAP__UNSET);	\
     45 	if (dso->needs_swap == DSO_SWAP__YES) {		\
     46 		switch (sizeof(____r)) {		\
     47 		case 2:					\
     48 			____r = bswap_16(val);		\
     49 			break;				\
     50 		case 4:					\
     51 			____r = bswap_32(val);		\
     52 			break;				\
     53 		case 8:					\
     54 			____r = bswap_64(val);		\
     55 			break;				\
     56 		default:				\
     57 			BUG_ON(1);			\
     58 		}					\
     59 	}						\
     60 	____r;						\
     61 })
     62 
     63 #define DSO__DATA_CACHE_SIZE 4096
     64 #define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
     65 
     66 struct dso_cache {
     67 	struct rb_node	rb_node;
     68 	u64 offset;
     69 	u64 size;
     70 	char data[0];
     71 };
     72 
     73 struct dso {
     74 	struct list_head node;
     75 	struct rb_root	 symbols[MAP__NR_TYPES];
     76 	struct rb_root	 symbol_names[MAP__NR_TYPES];
     77 	struct rb_root	 cache;
     78 	enum dso_kernel_type	kernel;
     79 	enum dso_swap_type	needs_swap;
     80 	enum dso_binary_type	symtab_type;
     81 	enum dso_binary_type	data_type;
     82 	u8		 adjust_symbols:1;
     83 	u8		 has_build_id:1;
     84 	u8		 hit:1;
     85 	u8		 annotate_warned:1;
     86 	u8		 sname_alloc:1;
     87 	u8		 lname_alloc:1;
     88 	u8		 sorted_by_name;
     89 	u8		 loaded;
     90 	u8		 rel;
     91 	u8		 build_id[BUILD_ID_SIZE];
     92 	const char	 *short_name;
     93 	char		 *long_name;
     94 	u16		 long_name_len;
     95 	u16		 short_name_len;
     96 	char		 name[0];
     97 };
     98 
     99 static inline void dso__set_loaded(struct dso *dso, enum map_type type)
    100 {
    101 	dso->loaded |= (1 << type);
    102 }
    103 
    104 struct dso *dso__new(const char *name);
    105 void dso__delete(struct dso *dso);
    106 
    107 void dso__set_short_name(struct dso *dso, const char *name);
    108 void dso__set_long_name(struct dso *dso, char *name);
    109 
    110 int dso__name_len(const struct dso *dso);
    111 
    112 bool dso__loaded(const struct dso *dso, enum map_type type);
    113 
    114 bool dso__sorted_by_name(const struct dso *dso, enum map_type type);
    115 void dso__set_sorted_by_name(struct dso *dso, enum map_type type);
    116 void dso__sort_by_name(struct dso *dso, enum map_type type);
    117 
    118 void dso__set_build_id(struct dso *dso, void *build_id);
    119 bool dso__build_id_equal(const struct dso *dso, u8 *build_id);
    120 void dso__read_running_kernel_build_id(struct dso *dso,
    121 				       struct machine *machine);
    122 int dso__kernel_module_get_build_id(struct dso *dso, const char *root_dir);
    123 
    124 char dso__symtab_origin(const struct dso *dso);
    125 int dso__binary_type_file(struct dso *dso, enum dso_binary_type type,
    126 			  char *root_dir, char *file, size_t size);
    127 
    128 int dso__data_fd(struct dso *dso, struct machine *machine);
    129 ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
    130 			      u64 offset, u8 *data, ssize_t size);
    131 ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
    132 			    struct machine *machine, u64 addr,
    133 			    u8 *data, ssize_t size);
    134 
    135 struct map *dso__new_map(const char *name);
    136 struct dso *dso__kernel_findnew(struct machine *machine, const char *name,
    137 				const char *short_name, int dso_type);
    138 
    139 void dsos__add(struct list_head *head, struct dso *dso);
    140 struct dso *dsos__find(struct list_head *head, const char *name,
    141 		       bool cmp_short);
    142 struct dso *__dsos__findnew(struct list_head *head, const char *name);
    143 bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
    144 
    145 size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
    146 			       bool (skip)(struct dso *dso, int parm), int parm);
    147 size_t __dsos__fprintf(struct list_head *head, FILE *fp);
    148 
    149 size_t dso__fprintf_buildid(struct dso *dso, FILE *fp);
    150 size_t dso__fprintf_symbols_by_name(struct dso *dso,
    151 				    enum map_type type, FILE *fp);
    152 size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp);
    153 
    154 static inline bool dso__is_vmlinux(struct dso *dso)
    155 {
    156 	return dso->data_type == DSO_BINARY_TYPE__VMLINUX ||
    157 	       dso->data_type == DSO_BINARY_TYPE__GUEST_VMLINUX;
    158 }
    159 
    160 static inline bool dso__is_kcore(struct dso *dso)
    161 {
    162 	return dso->data_type == DSO_BINARY_TYPE__KCORE ||
    163 	       dso->data_type == DSO_BINARY_TYPE__GUEST_KCORE;
    164 }
    165 
    166 #endif /* __PERF_DSO */
    167