4 #include <linux/refcount.h>
5 #include <linux/types.h>
6 #include <linux/rbtree.h>
10 #include <linux/types.h>
11 #include <linux/bitops.h>
13 #include "namespaces.h"
16 enum dso_binary_type {
17 DSO_BINARY_TYPE__KALLSYMS = 0,
18 DSO_BINARY_TYPE__GUEST_KALLSYMS,
19 DSO_BINARY_TYPE__VMLINUX,
20 DSO_BINARY_TYPE__GUEST_VMLINUX,
21 DSO_BINARY_TYPE__JAVA_JIT,
22 DSO_BINARY_TYPE__DEBUGLINK,
23 DSO_BINARY_TYPE__BUILD_ID_CACHE,
24 DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO,
25 DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
26 DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
27 DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
28 DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
29 DSO_BINARY_TYPE__GUEST_KMODULE,
30 DSO_BINARY_TYPE__GUEST_KMODULE_COMP,
31 DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
32 DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP,
33 DSO_BINARY_TYPE__KCORE,
34 DSO_BINARY_TYPE__GUEST_KCORE,
35 DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
36 DSO_BINARY_TYPE__NOT_FOUND,
39 enum dso_kernel_type {
51 enum dso_data_status {
52 DSO_DATA_STATUS_ERROR = -1,
53 DSO_DATA_STATUS_UNKNOWN = 0,
54 DSO_DATA_STATUS_OK = 1,
57 enum dso_data_status_seen {
58 DSO_DATA_STATUS_SEEN_ITRACE,
69 DSO_LOAD_ERRNO__SUCCESS = 0,
72 * Choose an arbitrary negative big number not to clash with standard
73 * errno since SUS requires the errno has distinct positive values.
74 * See 'Issue 6' in the link below.
76 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
78 __DSO_LOAD_ERRNO__START = -10000,
80 DSO_LOAD_ERRNO__INTERNAL_ERROR = __DSO_LOAD_ERRNO__START,
82 /* for symsrc__init() */
83 DSO_LOAD_ERRNO__INVALID_ELF,
84 DSO_LOAD_ERRNO__CANNOT_READ_BUILDID,
85 DSO_LOAD_ERRNO__MISMATCHING_BUILDID,
87 /* for decompress_kmodule */
88 DSO_LOAD_ERRNO__DECOMPRESSION_FAILURE,
90 __DSO_LOAD_ERRNO__END,
93 #define DSO__SWAP(dso, type, val) \
96 BUG_ON(dso->needs_swap == DSO_SWAP__UNSET); \
97 if (dso->needs_swap == DSO_SWAP__YES) { \
98 switch (sizeof(____r)) { \
100 ____r = bswap_16(val); \
103 ____r = bswap_32(val); \
106 ____r = bswap_64(val); \
115 #define DSO__DATA_CACHE_SIZE 4096
116 #define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
119 struct rb_node rb_node;
126 * DSOs are put into both a list for fast iteration and rbtree for fast
130 struct list_head head;
131 struct rb_root root; /* rbtree root sorted by long name */
132 pthread_rwlock_t lock;
135 struct auxtrace_cache;
138 pthread_mutex_t lock;
139 struct list_head node;
140 struct rb_node rb_node; /* rbtree node sorted by long name */
141 struct rb_root *root; /* root of rbtree that rb_node is in */
142 struct rb_root symbols[MAP__NR_TYPES];
143 struct rb_root symbol_names[MAP__NR_TYPES];
146 struct symbol *symbol;
147 } last_find_result[MAP__NR_TYPES];
149 char *symsrc_filename;
150 unsigned int a2l_fails;
151 enum dso_kernel_type kernel;
152 enum dso_swap_type needs_swap;
153 enum dso_binary_type symtab_type;
154 enum dso_binary_type binary_type;
155 enum dso_load_errno load_errno;
160 u8 annotate_warned:1;
161 u8 short_name_allocated:1;
162 u8 long_name_allocated:1;
167 u8 build_id[BUILD_ID_SIZE];
169 const char *short_name;
170 const char *long_name;
173 void *dwfl; /* DWARF debug info */
174 struct auxtrace_cache *auxtrace_cache;
178 struct rb_root cache;
183 struct list_head open_entry;
184 u64 debug_frame_offset;
185 u64 eh_frame_hdr_offset;
188 union { /* Tool specific area */
192 struct nsinfo *nsinfo;
197 /* dso__for_each_symbol - iterate over the symbols of given type
199 * @dso: the 'struct dso *' in which symbols itereated
200 * @pos: the 'struct symbol *' to use as a loop cursor
201 * @n: the 'struct rb_node *' to use as a temporary storage
202 * @type: the 'enum map_type' type of symbols
204 #define dso__for_each_symbol(dso, pos, n, type) \
205 symbols__for_each_entry(&(dso)->symbols[(type)], pos, n)
207 static inline void dso__set_loaded(struct dso *dso, enum map_type type)
209 dso->loaded |= (1 << type);
212 struct dso *dso__new(const char *name);
213 void dso__delete(struct dso *dso);
215 void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated);
216 void dso__set_long_name(struct dso *dso, const char *name, bool name_allocated);
218 int dso__name_len(const struct dso *dso);
220 struct dso *dso__get(struct dso *dso);
221 void dso__put(struct dso *dso);
223 static inline void __dso__zput(struct dso **dso)
229 #define dso__zput(dso) __dso__zput(&dso)
231 bool dso__loaded(const struct dso *dso, enum map_type type);
233 bool dso__sorted_by_name(const struct dso *dso, enum map_type type);
234 void dso__set_sorted_by_name(struct dso *dso, enum map_type type);
235 void dso__sort_by_name(struct dso *dso, enum map_type type);
237 void dso__set_build_id(struct dso *dso, void *build_id);
238 bool dso__build_id_equal(const struct dso *dso, u8 *build_id);
239 void dso__read_running_kernel_build_id(struct dso *dso,
240 struct machine *machine);
241 int dso__kernel_module_get_build_id(struct dso *dso, const char *root_dir);
243 char dso__symtab_origin(const struct dso *dso);
244 int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type type,
245 char *root_dir, char *filename, size_t size);
246 bool is_supported_compression(const char *ext);
247 bool is_kernel_module(const char *pathname, int cpumode);
248 bool decompress_to_file(const char *ext, const char *filename, int output_fd);
249 bool dso__needs_decompress(struct dso *dso);
250 int dso__decompress_kmodule_fd(struct dso *dso, const char *name);
251 int dso__decompress_kmodule_path(struct dso *dso, const char *name,
252 char *pathname, size_t len);
254 #define KMOD_DECOMP_NAME "/tmp/perf-kmod-XXXXXX"
255 #define KMOD_DECOMP_LEN sizeof(KMOD_DECOMP_NAME)
264 int __kmod_path__parse(struct kmod_path *m, const char *path,
265 bool alloc_name, bool alloc_ext);
267 #define kmod_path__parse(__m, __p) __kmod_path__parse(__m, __p, false, false)
268 #define kmod_path__parse_name(__m, __p) __kmod_path__parse(__m, __p, true , false)
269 #define kmod_path__parse_ext(__m, __p) __kmod_path__parse(__m, __p, false, true)
271 void dso__set_module_info(struct dso *dso, struct kmod_path *m,
272 struct machine *machine);
275 * The dso__data_* external interface provides following functions:
280 * dso__data_read_offset
281 * dso__data_read_addr
283 * Please refer to the dso.c object code for each function and
284 * arguments documentation. Following text tries to explain the
285 * dso file descriptor caching.
287 * The dso__data* interface allows caching of opened file descriptors
288 * to speed up the dso data accesses. The idea is to leave the file
289 * descriptor opened ideally for the whole life of the dso object.
291 * The current usage of the dso__data_* interface is as follows:
294 * int fd = dso__data_get_fd(dso, machine);
297 * dso__data_put_fd(dso);
301 * n = dso__data_read_offset(dso_0, &machine, 0, buf, BUFSIZE);
302 * n = dso__data_read_addr(dso_0, &machine, 0, buf, BUFSIZE);
304 * Eventually close DSO's fd:
305 * dso__data_close(dso);
307 * It is not necessary to close the DSO object data file. Each time new
308 * DSO data file is opened, the limit (RLIMIT_NOFILE/2) is checked. Once
309 * it is crossed, the oldest opened DSO object is closed.
311 * The dso__delete function calls close_dso function to ensure the
312 * data file descriptor gets closed/unmapped before the dso object
317 int dso__data_get_fd(struct dso *dso, struct machine *machine);
318 void dso__data_put_fd(struct dso *dso);
319 void dso__data_close(struct dso *dso);
321 off_t dso__data_size(struct dso *dso, struct machine *machine);
322 ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
323 u64 offset, u8 *data, ssize_t size);
324 ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
325 struct machine *machine, u64 addr,
326 u8 *data, ssize_t size);
327 bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by);
329 struct map *dso__new_map(const char *name);
330 struct dso *machine__findnew_kernel(struct machine *machine, const char *name,
331 const char *short_name, int dso_type);
333 void __dsos__add(struct dsos *dsos, struct dso *dso);
334 void dsos__add(struct dsos *dsos, struct dso *dso);
335 struct dso *__dsos__addnew(struct dsos *dsos, const char *name);
336 struct dso *__dsos__find(struct dsos *dsos, const char *name, bool cmp_short);
337 struct dso *dsos__find(struct dsos *dsos, const char *name, bool cmp_short);
338 struct dso *__dsos__findnew(struct dsos *dsos, const char *name);
339 struct dso *dsos__findnew(struct dsos *dsos, const char *name);
340 bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
342 void dso__reset_find_symbol_cache(struct dso *dso);
344 size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
345 bool (skip)(struct dso *dso, int parm), int parm);
346 size_t __dsos__fprintf(struct list_head *head, FILE *fp);
348 size_t dso__fprintf_buildid(struct dso *dso, FILE *fp);
349 size_t dso__fprintf_symbols_by_name(struct dso *dso,
350 enum map_type type, FILE *fp);
351 size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp);
353 static inline bool dso__is_vmlinux(struct dso *dso)
355 return dso->binary_type == DSO_BINARY_TYPE__VMLINUX ||
356 dso->binary_type == DSO_BINARY_TYPE__GUEST_VMLINUX;
359 static inline bool dso__is_kcore(struct dso *dso)
361 return dso->binary_type == DSO_BINARY_TYPE__KCORE ||
362 dso->binary_type == DSO_BINARY_TYPE__GUEST_KCORE;
365 static inline bool dso__is_kallsyms(struct dso *dso)
367 return dso->kernel && dso->long_name[0] != '/';
370 void dso__free_a2l(struct dso *dso);
372 enum dso_type dso__type(struct dso *dso, struct machine *machine);
374 int dso__strerror_load(struct dso *dso, char *buf, size_t buflen);
376 void reset_fd_limit(void);
378 #endif /* __PERF_DSO */