4 #include <linux/atomic.h>
5 #include <linux/types.h>
6 #include <linux/rbtree.h>
9 #include <linux/types.h>
10 #include <linux/bitops.h>
14 enum dso_binary_type {
15 DSO_BINARY_TYPE__KALLSYMS = 0,
16 DSO_BINARY_TYPE__GUEST_KALLSYMS,
17 DSO_BINARY_TYPE__VMLINUX,
18 DSO_BINARY_TYPE__GUEST_VMLINUX,
19 DSO_BINARY_TYPE__JAVA_JIT,
20 DSO_BINARY_TYPE__DEBUGLINK,
21 DSO_BINARY_TYPE__BUILD_ID_CACHE,
22 DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
23 DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
24 DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
25 DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
26 DSO_BINARY_TYPE__GUEST_KMODULE,
27 DSO_BINARY_TYPE__GUEST_KMODULE_COMP,
28 DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
29 DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP,
30 DSO_BINARY_TYPE__KCORE,
31 DSO_BINARY_TYPE__GUEST_KCORE,
32 DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
33 DSO_BINARY_TYPE__NOT_FOUND,
36 enum dso_kernel_type {
48 enum dso_data_status {
49 DSO_DATA_STATUS_ERROR = -1,
50 DSO_DATA_STATUS_UNKNOWN = 0,
51 DSO_DATA_STATUS_OK = 1,
54 enum dso_data_status_seen {
55 DSO_DATA_STATUS_SEEN_ITRACE,
66 DSO_LOAD_ERRNO__SUCCESS = 0,
69 * Choose an arbitrary negative big number not to clash with standard
70 * errno since SUS requires the errno has distinct positive values.
71 * See 'Issue 6' in the link below.
73 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
75 __DSO_LOAD_ERRNO__START = -10000,
77 DSO_LOAD_ERRNO__INTERNAL_ERROR = __DSO_LOAD_ERRNO__START,
79 /* for symsrc__init() */
80 DSO_LOAD_ERRNO__INVALID_ELF,
81 DSO_LOAD_ERRNO__CANNOT_READ_BUILDID,
82 DSO_LOAD_ERRNO__MISMATCHING_BUILDID,
84 /* for decompress_kmodule */
85 DSO_LOAD_ERRNO__DECOMPRESSION_FAILURE,
87 __DSO_LOAD_ERRNO__END,
90 #define DSO__SWAP(dso, type, val) \
93 BUG_ON(dso->needs_swap == DSO_SWAP__UNSET); \
94 if (dso->needs_swap == DSO_SWAP__YES) { \
95 switch (sizeof(____r)) { \
97 ____r = bswap_16(val); \
100 ____r = bswap_32(val); \
103 ____r = bswap_64(val); \
112 #define DSO__DATA_CACHE_SIZE 4096
113 #define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
116 struct rb_node rb_node;
123 * DSOs are put into both a list for fast iteration and rbtree for fast
127 struct list_head head;
128 struct rb_root root; /* rbtree root sorted by long name */
129 pthread_rwlock_t lock;
132 struct auxtrace_cache;
135 pthread_mutex_t lock;
136 struct list_head node;
137 struct rb_node rb_node; /* rbtree node sorted by long name */
138 struct rb_root symbols[MAP__NR_TYPES];
139 struct rb_root symbol_names[MAP__NR_TYPES];
141 char *symsrc_filename;
142 unsigned int a2l_fails;
143 enum dso_kernel_type kernel;
144 enum dso_swap_type needs_swap;
145 enum dso_binary_type symtab_type;
146 enum dso_binary_type binary_type;
147 enum dso_load_errno load_errno;
152 u8 annotate_warned:1;
153 u8 short_name_allocated:1;
154 u8 long_name_allocated:1;
159 u8 build_id[BUILD_ID_SIZE];
160 const char *short_name;
161 const char *long_name;
164 void *dwfl; /* DWARF debug info */
165 struct auxtrace_cache *auxtrace_cache;
169 struct rb_root cache;
174 struct list_head open_entry;
175 u64 debug_frame_offset;
176 u64 eh_frame_hdr_offset;
179 union { /* Tool specific area */
187 /* dso__for_each_symbol - iterate over the symbols of given type
189 * @dso: the 'struct dso *' in which symbols itereated
190 * @pos: the 'struct symbol *' to use as a loop cursor
191 * @n: the 'struct rb_node *' to use as a temporary storage
192 * @type: the 'enum map_type' type of symbols
194 #define dso__for_each_symbol(dso, pos, n, type) \
195 symbols__for_each_entry(&(dso)->symbols[(type)], pos, n)
197 static inline void dso__set_loaded(struct dso *dso, enum map_type type)
199 dso->loaded |= (1 << type);
202 struct dso *dso__new(const char *name);
203 void dso__delete(struct dso *dso);
205 void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated);
206 void dso__set_long_name(struct dso *dso, const char *name, bool name_allocated);
208 int dso__name_len(const struct dso *dso);
210 struct dso *dso__get(struct dso *dso);
211 void dso__put(struct dso *dso);
213 static inline void __dso__zput(struct dso **dso)
219 #define dso__zput(dso) __dso__zput(&dso)
221 bool dso__loaded(const struct dso *dso, enum map_type type);
223 bool dso__sorted_by_name(const struct dso *dso, enum map_type type);
224 void dso__set_sorted_by_name(struct dso *dso, enum map_type type);
225 void dso__sort_by_name(struct dso *dso, enum map_type type);
227 void dso__set_build_id(struct dso *dso, void *build_id);
228 bool dso__build_id_equal(const struct dso *dso, u8 *build_id);
229 void dso__read_running_kernel_build_id(struct dso *dso,
230 struct machine *machine);
231 int dso__kernel_module_get_build_id(struct dso *dso, const char *root_dir);
233 char dso__symtab_origin(const struct dso *dso);
234 int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type type,
235 char *root_dir, char *filename, size_t size);
236 bool is_supported_compression(const char *ext);
237 bool is_kernel_module(const char *pathname, int cpumode);
238 bool decompress_to_file(const char *ext, const char *filename, int output_fd);
239 bool dso__needs_decompress(struct dso *dso);
248 int __kmod_path__parse(struct kmod_path *m, const char *path,
249 bool alloc_name, bool alloc_ext);
251 #define kmod_path__parse(__m, __p) __kmod_path__parse(__m, __p, false, false)
252 #define kmod_path__parse_name(__m, __p) __kmod_path__parse(__m, __p, true , false)
253 #define kmod_path__parse_ext(__m, __p) __kmod_path__parse(__m, __p, false, true)
256 * The dso__data_* external interface provides following functions:
261 * dso__data_read_offset
262 * dso__data_read_addr
264 * Please refer to the dso.c object code for each function and
265 * arguments documentation. Following text tries to explain the
266 * dso file descriptor caching.
268 * The dso__data* interface allows caching of opened file descriptors
269 * to speed up the dso data accesses. The idea is to leave the file
270 * descriptor opened ideally for the whole life of the dso object.
272 * The current usage of the dso__data_* interface is as follows:
275 * int fd = dso__data_get_fd(dso, machine);
278 * dso__data_put_fd(dso);
282 * n = dso__data_read_offset(dso_0, &machine, 0, buf, BUFSIZE);
283 * n = dso__data_read_addr(dso_0, &machine, 0, buf, BUFSIZE);
285 * Eventually close DSO's fd:
286 * dso__data_close(dso);
288 * It is not necessary to close the DSO object data file. Each time new
289 * DSO data file is opened, the limit (RLIMIT_NOFILE/2) is checked. Once
290 * it is crossed, the oldest opened DSO object is closed.
292 * The dso__delete function calls close_dso function to ensure the
293 * data file descriptor gets closed/unmapped before the dso object
298 int dso__data_get_fd(struct dso *dso, struct machine *machine);
299 void dso__data_put_fd(struct dso *dso __maybe_unused);
300 void dso__data_close(struct dso *dso);
302 off_t dso__data_size(struct dso *dso, struct machine *machine);
303 ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
304 u64 offset, u8 *data, ssize_t size);
305 ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
306 struct machine *machine, u64 addr,
307 u8 *data, ssize_t size);
308 bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by);
310 struct map *dso__new_map(const char *name);
311 struct dso *machine__findnew_kernel(struct machine *machine, const char *name,
312 const char *short_name, int dso_type);
314 void __dsos__add(struct dsos *dsos, struct dso *dso);
315 void dsos__add(struct dsos *dsos, struct dso *dso);
316 struct dso *__dsos__addnew(struct dsos *dsos, const char *name);
317 struct dso *__dsos__find(struct dsos *dsos, const char *name, bool cmp_short);
318 struct dso *dsos__find(struct dsos *dsos, const char *name, bool cmp_short);
319 struct dso *__dsos__findnew(struct dsos *dsos, const char *name);
320 struct dso *dsos__findnew(struct dsos *dsos, const char *name);
321 bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
323 size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
324 bool (skip)(struct dso *dso, int parm), int parm);
325 size_t __dsos__fprintf(struct list_head *head, FILE *fp);
327 size_t dso__fprintf_buildid(struct dso *dso, FILE *fp);
328 size_t dso__fprintf_symbols_by_name(struct dso *dso,
329 enum map_type type, FILE *fp);
330 size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp);
332 static inline bool dso__is_vmlinux(struct dso *dso)
334 return dso->binary_type == DSO_BINARY_TYPE__VMLINUX ||
335 dso->binary_type == DSO_BINARY_TYPE__GUEST_VMLINUX;
338 static inline bool dso__is_kcore(struct dso *dso)
340 return dso->binary_type == DSO_BINARY_TYPE__KCORE ||
341 dso->binary_type == DSO_BINARY_TYPE__GUEST_KCORE;
344 void dso__free_a2l(struct dso *dso);
346 enum dso_type dso__type(struct dso *dso, struct machine *machine);
348 int dso__strerror_load(struct dso *dso, char *buf, size_t buflen);
350 #endif /* __PERF_DSO */