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 
dso__set_loaded(struct dso * dso,enum map_type type)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 
dso__is_vmlinux(struct dso * dso)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 
dso__is_kcore(struct dso * dso)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