xref: /linux/tools/perf/util/dso.h (revision e4bb4caa)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_DSO
3 #define __PERF_DSO
4 
5 #include <linux/refcount.h>
6 #include <linux/types.h>
7 #include <linux/rbtree.h>
8 #include <sys/types.h>
9 #include <stdbool.h>
10 #include <stdio.h>
11 #include <linux/bitops.h>
12 #include "build-id.h"
13 #include "mutex.h"
14 #include <internal/rc_check.h>
15 
16 struct machine;
17 struct map;
18 struct perf_env;
19 
20 #define DSO__NAME_KALLSYMS	"[kernel.kallsyms]"
21 #define DSO__NAME_KCORE		"[kernel.kcore]"
22 
23 enum dso_binary_type {
24 	DSO_BINARY_TYPE__KALLSYMS = 0,
25 	DSO_BINARY_TYPE__GUEST_KALLSYMS,
26 	DSO_BINARY_TYPE__VMLINUX,
27 	DSO_BINARY_TYPE__GUEST_VMLINUX,
28 	DSO_BINARY_TYPE__JAVA_JIT,
29 	DSO_BINARY_TYPE__DEBUGLINK,
30 	DSO_BINARY_TYPE__BUILD_ID_CACHE,
31 	DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO,
32 	DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
33 	DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
34 	DSO_BINARY_TYPE__MIXEDUP_UBUNTU_DEBUGINFO,
35 	DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
36 	DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
37 	DSO_BINARY_TYPE__GUEST_KMODULE,
38 	DSO_BINARY_TYPE__GUEST_KMODULE_COMP,
39 	DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
40 	DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP,
41 	DSO_BINARY_TYPE__KCORE,
42 	DSO_BINARY_TYPE__GUEST_KCORE,
43 	DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
44 	DSO_BINARY_TYPE__BPF_PROG_INFO,
45 	DSO_BINARY_TYPE__BPF_IMAGE,
46 	DSO_BINARY_TYPE__OOL,
47 	DSO_BINARY_TYPE__NOT_FOUND,
48 };
49 
50 enum dso_space_type {
51 	DSO_SPACE__USER = 0,
52 	DSO_SPACE__KERNEL,
53 	DSO_SPACE__KERNEL_GUEST
54 };
55 
56 enum dso_swap_type {
57 	DSO_SWAP__UNSET,
58 	DSO_SWAP__NO,
59 	DSO_SWAP__YES,
60 };
61 
62 enum dso_data_status {
63 	DSO_DATA_STATUS_ERROR	= -1,
64 	DSO_DATA_STATUS_UNKNOWN	= 0,
65 	DSO_DATA_STATUS_OK	= 1,
66 };
67 
68 enum dso_data_status_seen {
69 	DSO_DATA_STATUS_SEEN_ITRACE,
70 };
71 
72 enum dso_type {
73 	DSO__TYPE_UNKNOWN,
74 	DSO__TYPE_64BIT,
75 	DSO__TYPE_32BIT,
76 	DSO__TYPE_X32BIT,
77 };
78 
79 enum dso_load_errno {
80 	DSO_LOAD_ERRNO__SUCCESS		= 0,
81 
82 	/*
83 	 * Choose an arbitrary negative big number not to clash with standard
84 	 * errno since SUS requires the errno has distinct positive values.
85 	 * See 'Issue 6' in the link below.
86 	 *
87 	 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
88 	 */
89 	__DSO_LOAD_ERRNO__START		= -10000,
90 
91 	DSO_LOAD_ERRNO__INTERNAL_ERROR	= __DSO_LOAD_ERRNO__START,
92 
93 	/* for symsrc__init() */
94 	DSO_LOAD_ERRNO__INVALID_ELF,
95 	DSO_LOAD_ERRNO__CANNOT_READ_BUILDID,
96 	DSO_LOAD_ERRNO__MISMATCHING_BUILDID,
97 
98 	/* for decompress_kmodule */
99 	DSO_LOAD_ERRNO__DECOMPRESSION_FAILURE,
100 
101 	__DSO_LOAD_ERRNO__END,
102 };
103 
104 #define DSO__SWAP(dso, type, val)				\
105 ({								\
106 	type ____r = val;					\
107 	enum dso_swap_type ___dst = dso__needs_swap(dso);	\
108 	BUG_ON(___dst == DSO_SWAP__UNSET);			\
109 	if (___dst == DSO_SWAP__YES) {				\
110 		switch (sizeof(____r)) {			\
111 		case 2:						\
112 			____r = bswap_16(val);			\
113 			break;					\
114 		case 4:						\
115 			____r = bswap_32(val);			\
116 			break;					\
117 		case 8:						\
118 			____r = bswap_64(val);			\
119 			break;					\
120 		default:					\
121 			BUG_ON(1);				\
122 		}						\
123 	}							\
124 	____r;							\
125 })
126 
127 #define DSO__DATA_CACHE_SIZE 4096
128 #define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
129 
130 /*
131  * Data about backing storage DSO, comes from PERF_RECORD_MMAP2 meta events
132  */
133 struct dso_id {
134 	u32	maj;
135 	u32	min;
136 	u64	ino;
137 	u64	ino_generation;
138 };
139 
140 struct dso_cache {
141 	struct rb_node	rb_node;
142 	u64 offset;
143 	u64 size;
144 	char data[];
145 };
146 
147 struct dso_data {
148 	struct rb_root	 cache;
149 	struct list_head open_entry;
150 #ifdef REFCNT_CHECKING
151 	struct dso	 *dso;
152 #endif
153 	int		 fd;
154 	int		 status;
155 	u32		 status_seen;
156 	u64		 file_size;
157 	u64		 elf_base_addr;
158 	u64		 debug_frame_offset;
159 	u64		 eh_frame_hdr_addr;
160 	u64		 eh_frame_hdr_offset;
161 };
162 
163 struct dso_bpf_prog {
164 	u32		id;
165 	u32		sub_id;
166 	struct perf_env	*env;
167 };
168 
169 struct auxtrace_cache;
170 
DECLARE_RC_STRUCT(dso)171 DECLARE_RC_STRUCT(dso) {
172 	struct mutex	 lock;
173 	struct dsos	 *dsos;
174 	struct rb_root_cached symbols;
175 	struct symbol	 **symbol_names;
176 	size_t		 symbol_names_len;
177 	struct rb_root_cached inlined_nodes;
178 	struct rb_root_cached srclines;
179 	struct rb_root	 data_types;
180 	struct rb_root	 global_vars;
181 
182 	struct {
183 		u64		addr;
184 		struct symbol	*symbol;
185 	} last_find_result;
186 	struct build_id	 bid;
187 	u64		 text_offset;
188 	u64		 text_end;
189 	const char	 *short_name;
190 	const char	 *long_name;
191 	void		 *a2l;
192 	char		 *symsrc_filename;
193 #if defined(__powerpc__)
194 	void		*dwfl;			/* DWARF debug info */
195 #endif
196 	struct nsinfo	*nsinfo;
197 	struct auxtrace_cache *auxtrace_cache;
198 	union { /* Tool specific area */
199 		void	 *priv;
200 		u64	 db_id;
201 	};
202 	/* bpf prog information */
203 	struct dso_bpf_prog bpf_prog;
204 	/* dso data file */
205 	struct dso_data	 data;
206 	struct dso_id	 id;
207 	unsigned int	 a2l_fails;
208 	int		 comp;
209 	refcount_t	 refcnt;
210 	enum dso_load_errno	load_errno;
211 	u16		 long_name_len;
212 	u16		 short_name_len;
213 	enum dso_binary_type	symtab_type:8;
214 	enum dso_binary_type	binary_type:8;
215 	enum dso_space_type	kernel:2;
216 	enum dso_swap_type	needs_swap:2;
217 	bool			is_kmod:1;
218 	u8		 adjust_symbols:1;
219 	u8		 has_build_id:1;
220 	u8		 header_build_id:1;
221 	u8		 has_srcline:1;
222 	u8		 hit:1;
223 	u8		 annotate_warned:1;
224 	u8		 auxtrace_warned:1;
225 	u8		 short_name_allocated:1;
226 	u8		 long_name_allocated:1;
227 	u8		 is_64_bit:1;
228 	bool		 sorted_by_name;
229 	bool		 loaded;
230 	u8		 rel;
231 	char		 name[];
232 };
233 
234 /* dso__for_each_symbol - iterate over the symbols of given type
235  *
236  * @dso: the 'struct dso *' in which symbols are iterated
237  * @pos: the 'struct symbol *' to use as a loop cursor
238  * @n: the 'struct rb_node *' to use as a temporary storage
239  */
240 #define dso__for_each_symbol(dso, pos, n)	\
241 	symbols__for_each_entry(dso__symbols(dso), pos, n)
242 
dso__a2l(const struct dso * dso)243 static inline void *dso__a2l(const struct dso *dso)
244 {
245 	return RC_CHK_ACCESS(dso)->a2l;
246 }
247 
dso__set_a2l(struct dso * dso,void * val)248 static inline void dso__set_a2l(struct dso *dso, void *val)
249 {
250 	RC_CHK_ACCESS(dso)->a2l = val;
251 }
252 
dso__a2l_fails(const struct dso * dso)253 static inline unsigned int dso__a2l_fails(const struct dso *dso)
254 {
255 	return RC_CHK_ACCESS(dso)->a2l_fails;
256 }
257 
dso__set_a2l_fails(struct dso * dso,unsigned int val)258 static inline void dso__set_a2l_fails(struct dso *dso, unsigned int val)
259 {
260 	RC_CHK_ACCESS(dso)->a2l_fails = val;
261 }
262 
dso__adjust_symbols(const struct dso * dso)263 static inline bool dso__adjust_symbols(const struct dso *dso)
264 {
265 	return RC_CHK_ACCESS(dso)->adjust_symbols;
266 }
267 
dso__set_adjust_symbols(struct dso * dso,bool val)268 static inline void dso__set_adjust_symbols(struct dso *dso, bool val)
269 {
270 	RC_CHK_ACCESS(dso)->adjust_symbols = val;
271 }
272 
dso__annotate_warned(const struct dso * dso)273 static inline bool dso__annotate_warned(const struct dso *dso)
274 {
275 	return RC_CHK_ACCESS(dso)->annotate_warned;
276 }
277 
dso__set_annotate_warned(struct dso * dso)278 static inline void dso__set_annotate_warned(struct dso *dso)
279 {
280 	RC_CHK_ACCESS(dso)->annotate_warned = 1;
281 }
282 
dso__auxtrace_warned(const struct dso * dso)283 static inline bool dso__auxtrace_warned(const struct dso *dso)
284 {
285 	return RC_CHK_ACCESS(dso)->auxtrace_warned;
286 }
287 
dso__set_auxtrace_warned(struct dso * dso)288 static inline void dso__set_auxtrace_warned(struct dso *dso)
289 {
290 	RC_CHK_ACCESS(dso)->auxtrace_warned = 1;
291 }
292 
dso__auxtrace_cache(struct dso * dso)293 static inline struct auxtrace_cache *dso__auxtrace_cache(struct dso *dso)
294 {
295 	return RC_CHK_ACCESS(dso)->auxtrace_cache;
296 }
297 
dso__set_auxtrace_cache(struct dso * dso,struct auxtrace_cache * cache)298 static inline void dso__set_auxtrace_cache(struct dso *dso, struct auxtrace_cache *cache)
299 {
300 	RC_CHK_ACCESS(dso)->auxtrace_cache = cache;
301 }
302 
dso__bid(struct dso * dso)303 static inline struct build_id *dso__bid(struct dso *dso)
304 {
305 	return &RC_CHK_ACCESS(dso)->bid;
306 }
307 
dso__bid_const(const struct dso * dso)308 static inline const struct build_id *dso__bid_const(const struct dso *dso)
309 {
310 	return &RC_CHK_ACCESS(dso)->bid;
311 }
312 
dso__bpf_prog(struct dso * dso)313 static inline struct dso_bpf_prog *dso__bpf_prog(struct dso *dso)
314 {
315 	return &RC_CHK_ACCESS(dso)->bpf_prog;
316 }
317 
dso__has_build_id(const struct dso * dso)318 static inline bool dso__has_build_id(const struct dso *dso)
319 {
320 	return RC_CHK_ACCESS(dso)->has_build_id;
321 }
322 
dso__set_has_build_id(struct dso * dso)323 static inline void dso__set_has_build_id(struct dso *dso)
324 {
325 	RC_CHK_ACCESS(dso)->has_build_id = true;
326 }
327 
dso__has_srcline(const struct dso * dso)328 static inline bool dso__has_srcline(const struct dso *dso)
329 {
330 	return RC_CHK_ACCESS(dso)->has_srcline;
331 }
332 
dso__set_has_srcline(struct dso * dso,bool val)333 static inline void dso__set_has_srcline(struct dso *dso, bool val)
334 {
335 	RC_CHK_ACCESS(dso)->has_srcline = val;
336 }
337 
dso__comp(const struct dso * dso)338 static inline int dso__comp(const struct dso *dso)
339 {
340 	return RC_CHK_ACCESS(dso)->comp;
341 }
342 
dso__set_comp(struct dso * dso,int comp)343 static inline void dso__set_comp(struct dso *dso, int comp)
344 {
345 	RC_CHK_ACCESS(dso)->comp = comp;
346 }
347 
dso__data(struct dso * dso)348 static inline struct dso_data *dso__data(struct dso *dso)
349 {
350 	return &RC_CHK_ACCESS(dso)->data;
351 }
352 
dso__db_id(const struct dso * dso)353 static inline u64 dso__db_id(const struct dso *dso)
354 {
355 	return RC_CHK_ACCESS(dso)->db_id;
356 }
357 
dso__set_db_id(struct dso * dso,u64 db_id)358 static inline void dso__set_db_id(struct dso *dso, u64 db_id)
359 {
360 	RC_CHK_ACCESS(dso)->db_id = db_id;
361 }
362 
dso__dsos(struct dso * dso)363 static inline struct dsos *dso__dsos(struct dso *dso)
364 {
365 	return RC_CHK_ACCESS(dso)->dsos;
366 }
367 
dso__set_dsos(struct dso * dso,struct dsos * dsos)368 static inline void dso__set_dsos(struct dso *dso, struct dsos *dsos)
369 {
370 	RC_CHK_ACCESS(dso)->dsos = dsos;
371 }
372 
dso__header_build_id(struct dso * dso)373 static inline bool dso__header_build_id(struct dso *dso)
374 {
375 	return RC_CHK_ACCESS(dso)->header_build_id;
376 }
377 
dso__set_header_build_id(struct dso * dso,bool val)378 static inline void dso__set_header_build_id(struct dso *dso, bool val)
379 {
380 	RC_CHK_ACCESS(dso)->header_build_id = val;
381 }
382 
dso__hit(const struct dso * dso)383 static inline bool dso__hit(const struct dso *dso)
384 {
385 	return RC_CHK_ACCESS(dso)->hit;
386 }
387 
dso__set_hit(struct dso * dso)388 static inline void dso__set_hit(struct dso *dso)
389 {
390 	RC_CHK_ACCESS(dso)->hit = 1;
391 }
392 
dso__id(struct dso * dso)393 static inline struct dso_id *dso__id(struct dso *dso)
394 {
395 	return &RC_CHK_ACCESS(dso)->id;
396 }
397 
dso__id_const(const struct dso * dso)398 static inline const struct dso_id *dso__id_const(const struct dso *dso)
399 {
400 	return &RC_CHK_ACCESS(dso)->id;
401 }
402 
dso__inlined_nodes(struct dso * dso)403 static inline struct rb_root_cached *dso__inlined_nodes(struct dso *dso)
404 {
405 	return &RC_CHK_ACCESS(dso)->inlined_nodes;
406 }
407 
dso__is_64_bit(const struct dso * dso)408 static inline bool dso__is_64_bit(const struct dso *dso)
409 {
410 	return RC_CHK_ACCESS(dso)->is_64_bit;
411 }
412 
dso__set_is_64_bit(struct dso * dso,bool is)413 static inline void dso__set_is_64_bit(struct dso *dso, bool is)
414 {
415 	RC_CHK_ACCESS(dso)->is_64_bit = is;
416 }
417 
dso__is_kmod(const struct dso * dso)418 static inline bool dso__is_kmod(const struct dso *dso)
419 {
420 	return RC_CHK_ACCESS(dso)->is_kmod;
421 }
422 
dso__set_is_kmod(struct dso * dso)423 static inline void dso__set_is_kmod(struct dso *dso)
424 {
425 	RC_CHK_ACCESS(dso)->is_kmod = 1;
426 }
427 
dso__kernel(const struct dso * dso)428 static inline enum dso_space_type dso__kernel(const struct dso *dso)
429 {
430 	return RC_CHK_ACCESS(dso)->kernel;
431 }
432 
dso__set_kernel(struct dso * dso,enum dso_space_type kernel)433 static inline void dso__set_kernel(struct dso *dso, enum dso_space_type kernel)
434 {
435 	RC_CHK_ACCESS(dso)->kernel = kernel;
436 }
437 
dso__last_find_result_addr(const struct dso * dso)438 static inline u64 dso__last_find_result_addr(const struct dso *dso)
439 {
440 	return RC_CHK_ACCESS(dso)->last_find_result.addr;
441 }
442 
dso__set_last_find_result_addr(struct dso * dso,u64 addr)443 static inline void dso__set_last_find_result_addr(struct dso *dso, u64 addr)
444 {
445 	RC_CHK_ACCESS(dso)->last_find_result.addr = addr;
446 }
447 
dso__last_find_result_symbol(const struct dso * dso)448 static inline struct symbol *dso__last_find_result_symbol(const struct dso *dso)
449 {
450 	return RC_CHK_ACCESS(dso)->last_find_result.symbol;
451 }
452 
dso__set_last_find_result_symbol(struct dso * dso,struct symbol * symbol)453 static inline void dso__set_last_find_result_symbol(struct dso *dso, struct symbol *symbol)
454 {
455 	RC_CHK_ACCESS(dso)->last_find_result.symbol = symbol;
456 }
457 
dso__load_errno(struct dso * dso)458 static inline enum dso_load_errno *dso__load_errno(struct dso *dso)
459 {
460 	return &RC_CHK_ACCESS(dso)->load_errno;
461 }
462 
dso__set_loaded(struct dso * dso)463 static inline void dso__set_loaded(struct dso *dso)
464 {
465 	RC_CHK_ACCESS(dso)->loaded = true;
466 }
467 
dso__lock(struct dso * dso)468 static inline struct mutex *dso__lock(struct dso *dso)
469 {
470 	return &RC_CHK_ACCESS(dso)->lock;
471 }
472 
dso__long_name(const struct dso * dso)473 static inline const char *dso__long_name(const struct dso *dso)
474 {
475 	return RC_CHK_ACCESS(dso)->long_name;
476 }
477 
dso__long_name_allocated(const struct dso * dso)478 static inline bool dso__long_name_allocated(const struct dso *dso)
479 {
480 	return RC_CHK_ACCESS(dso)->long_name_allocated;
481 }
482 
dso__set_long_name_allocated(struct dso * dso,bool allocated)483 static inline void dso__set_long_name_allocated(struct dso *dso, bool allocated)
484 {
485 	RC_CHK_ACCESS(dso)->long_name_allocated = allocated;
486 }
487 
dso__long_name_len(const struct dso * dso)488 static inline u16 dso__long_name_len(const struct dso *dso)
489 {
490 	return RC_CHK_ACCESS(dso)->long_name_len;
491 }
492 
dso__name(const struct dso * dso)493 static inline const char *dso__name(const struct dso *dso)
494 {
495 	return RC_CHK_ACCESS(dso)->name;
496 }
497 
dso__needs_swap(const struct dso * dso)498 static inline enum dso_swap_type dso__needs_swap(const struct dso *dso)
499 {
500 	return RC_CHK_ACCESS(dso)->needs_swap;
501 }
502 
dso__set_needs_swap(struct dso * dso,enum dso_swap_type type)503 static inline void dso__set_needs_swap(struct dso *dso, enum dso_swap_type type)
504 {
505 	RC_CHK_ACCESS(dso)->needs_swap = type;
506 }
507 
dso__nsinfo(struct dso * dso)508 static inline struct nsinfo *dso__nsinfo(struct dso *dso)
509 {
510 	return RC_CHK_ACCESS(dso)->nsinfo;
511 }
512 
dso__nsinfo_const(const struct dso * dso)513 static inline const struct nsinfo *dso__nsinfo_const(const struct dso *dso)
514 {
515 	return RC_CHK_ACCESS(dso)->nsinfo;
516 }
517 
dso__nsinfo_ptr(struct dso * dso)518 static inline struct nsinfo **dso__nsinfo_ptr(struct dso *dso)
519 {
520 	return &RC_CHK_ACCESS(dso)->nsinfo;
521 }
522 
523 void dso__set_nsinfo(struct dso *dso, struct nsinfo *nsi);
524 
dso__rel(const struct dso * dso)525 static inline u8 dso__rel(const struct dso *dso)
526 {
527 	return RC_CHK_ACCESS(dso)->rel;
528 }
529 
dso__set_rel(struct dso * dso,u8 rel)530 static inline void dso__set_rel(struct dso *dso, u8 rel)
531 {
532 	RC_CHK_ACCESS(dso)->rel = rel;
533 }
534 
dso__short_name(const struct dso * dso)535 static inline const char *dso__short_name(const struct dso *dso)
536 {
537 	return RC_CHK_ACCESS(dso)->short_name;
538 }
539 
dso__short_name_allocated(const struct dso * dso)540 static inline bool dso__short_name_allocated(const struct dso *dso)
541 {
542 	return RC_CHK_ACCESS(dso)->short_name_allocated;
543 }
544 
dso__set_short_name_allocated(struct dso * dso,bool allocated)545 static inline void dso__set_short_name_allocated(struct dso *dso, bool allocated)
546 {
547 	RC_CHK_ACCESS(dso)->short_name_allocated = allocated;
548 }
549 
dso__short_name_len(const struct dso * dso)550 static inline u16 dso__short_name_len(const struct dso *dso)
551 {
552 	return RC_CHK_ACCESS(dso)->short_name_len;
553 }
554 
dso__srclines(struct dso * dso)555 static inline struct rb_root_cached *dso__srclines(struct dso *dso)
556 {
557 	return &RC_CHK_ACCESS(dso)->srclines;
558 }
559 
dso__data_types(struct dso * dso)560 static inline struct rb_root *dso__data_types(struct dso *dso)
561 {
562 	return &RC_CHK_ACCESS(dso)->data_types;
563 }
564 
dso__global_vars(struct dso * dso)565 static inline struct rb_root *dso__global_vars(struct dso *dso)
566 {
567 	return &RC_CHK_ACCESS(dso)->global_vars;
568 }
569 
dso__symbols(struct dso * dso)570 static inline struct rb_root_cached *dso__symbols(struct dso *dso)
571 {
572 	return &RC_CHK_ACCESS(dso)->symbols;
573 }
574 
dso__symbol_names(struct dso * dso)575 static inline struct symbol **dso__symbol_names(struct dso *dso)
576 {
577 	return RC_CHK_ACCESS(dso)->symbol_names;
578 }
579 
dso__set_symbol_names(struct dso * dso,struct symbol ** names)580 static inline void dso__set_symbol_names(struct dso *dso, struct symbol **names)
581 {
582 	RC_CHK_ACCESS(dso)->symbol_names = names;
583 }
584 
dso__symbol_names_len(struct dso * dso)585 static inline size_t dso__symbol_names_len(struct dso *dso)
586 {
587 	return RC_CHK_ACCESS(dso)->symbol_names_len;
588 }
589 
dso__set_symbol_names_len(struct dso * dso,size_t len)590 static inline void dso__set_symbol_names_len(struct dso *dso, size_t len)
591 {
592 	RC_CHK_ACCESS(dso)->symbol_names_len = len;
593 }
594 
dso__symsrc_filename(const struct dso * dso)595 static inline const char *dso__symsrc_filename(const struct dso *dso)
596 {
597 	return RC_CHK_ACCESS(dso)->symsrc_filename;
598 }
599 
dso__set_symsrc_filename(struct dso * dso,char * val)600 static inline void dso__set_symsrc_filename(struct dso *dso, char *val)
601 {
602 	RC_CHK_ACCESS(dso)->symsrc_filename = val;
603 }
604 
dso__free_symsrc_filename(struct dso * dso)605 static inline void dso__free_symsrc_filename(struct dso *dso)
606 {
607 	zfree(&RC_CHK_ACCESS(dso)->symsrc_filename);
608 }
609 
dso__symtab_type(const struct dso * dso)610 static inline enum dso_binary_type dso__symtab_type(const struct dso *dso)
611 {
612 	return RC_CHK_ACCESS(dso)->symtab_type;
613 }
614 
dso__set_symtab_type(struct dso * dso,enum dso_binary_type bt)615 static inline void dso__set_symtab_type(struct dso *dso, enum dso_binary_type bt)
616 {
617 	RC_CHK_ACCESS(dso)->symtab_type = bt;
618 }
619 
dso__text_end(const struct dso * dso)620 static inline u64 dso__text_end(const struct dso *dso)
621 {
622 	return RC_CHK_ACCESS(dso)->text_end;
623 }
624 
dso__set_text_end(struct dso * dso,u64 val)625 static inline void dso__set_text_end(struct dso *dso, u64 val)
626 {
627 	RC_CHK_ACCESS(dso)->text_end = val;
628 }
629 
dso__text_offset(const struct dso * dso)630 static inline u64 dso__text_offset(const struct dso *dso)
631 {
632 	return RC_CHK_ACCESS(dso)->text_offset;
633 }
634 
dso__set_text_offset(struct dso * dso,u64 val)635 static inline void dso__set_text_offset(struct dso *dso, u64 val)
636 {
637 	RC_CHK_ACCESS(dso)->text_offset = val;
638 }
639 
640 int dso_id__cmp(const struct dso_id *a, const struct dso_id *b);
641 bool dso_id__empty(const struct dso_id *id);
642 
643 struct dso *dso__new_id(const char *name, const struct dso_id *id);
644 struct dso *dso__new(const char *name);
645 void dso__delete(struct dso *dso);
646 
647 int dso__cmp_id(struct dso *a, struct dso *b);
648 void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated);
649 void dso__set_long_name(struct dso *dso, const char *name, bool name_allocated);
650 void __dso__inject_id(struct dso *dso, const struct dso_id *id);
651 
652 int dso__name_len(const struct dso *dso);
653 
654 struct dso *dso__get(struct dso *dso);
655 void dso__put(struct dso *dso);
656 
__dso__zput(struct dso ** dso)657 static inline void __dso__zput(struct dso **dso)
658 {
659 	dso__put(*dso);
660 	*dso = NULL;
661 }
662 
663 #define dso__zput(dso) __dso__zput(&dso)
664 
665 bool dso__loaded(const struct dso *dso);
666 
dso__has_symbols(const struct dso * dso)667 static inline bool dso__has_symbols(const struct dso *dso)
668 {
669 	return !RB_EMPTY_ROOT(&RC_CHK_ACCESS(dso)->symbols.rb_root);
670 }
671 
672 char *dso__filename_with_chroot(const struct dso *dso, const char *filename);
673 
674 bool dso__sorted_by_name(const struct dso *dso);
675 void dso__set_sorted_by_name(struct dso *dso);
676 void dso__sort_by_name(struct dso *dso);
677 
678 void dso__set_build_id(struct dso *dso, struct build_id *bid);
679 bool dso__build_id_equal(const struct dso *dso, struct build_id *bid);
680 void dso__read_running_kernel_build_id(struct dso *dso,
681 				       struct machine *machine);
682 int dso__kernel_module_get_build_id(struct dso *dso, const char *root_dir);
683 
684 char dso__symtab_origin(const struct dso *dso);
685 int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type type,
686 				   char *root_dir, char *filename, size_t size);
687 bool is_kernel_module(const char *pathname, int cpumode);
688 bool dso__needs_decompress(struct dso *dso);
689 int dso__decompress_kmodule_fd(struct dso *dso, const char *name);
690 int dso__decompress_kmodule_path(struct dso *dso, const char *name,
691 				 char *pathname, size_t len);
692 int filename__decompress(const char *name, char *pathname,
693 			 size_t len, int comp, int *err);
694 
695 #define KMOD_DECOMP_NAME  "/tmp/perf-kmod-XXXXXX"
696 #define KMOD_DECOMP_LEN   sizeof(KMOD_DECOMP_NAME)
697 
698 struct kmod_path {
699 	char *name;
700 	int   comp;
701 	bool  kmod;
702 };
703 
704 int __kmod_path__parse(struct kmod_path *m, const char *path,
705 		     bool alloc_name);
706 
707 #define kmod_path__parse(__m, __p)      __kmod_path__parse(__m, __p, false)
708 #define kmod_path__parse_name(__m, __p) __kmod_path__parse(__m, __p, true)
709 
710 void dso__set_module_info(struct dso *dso, struct kmod_path *m,
711 			  struct machine *machine);
712 
713 /*
714  * The dso__data_* external interface provides following functions:
715  *   dso__data_get_fd
716  *   dso__data_put_fd
717  *   dso__data_close
718  *   dso__data_size
719  *   dso__data_read_offset
720  *   dso__data_read_addr
721  *   dso__data_write_cache_offs
722  *   dso__data_write_cache_addr
723  *
724  * Please refer to the dso.c object code for each function and
725  * arguments documentation. Following text tries to explain the
726  * dso file descriptor caching.
727  *
728  * The dso__data* interface allows caching of opened file descriptors
729  * to speed up the dso data accesses. The idea is to leave the file
730  * descriptor opened ideally for the whole life of the dso object.
731  *
732  * The current usage of the dso__data_* interface is as follows:
733  *
734  * Get DSO's fd:
735  *   int fd = dso__data_get_fd(dso, machine);
736  *   if (fd >= 0) {
737  *       USE 'fd' SOMEHOW
738  *       dso__data_put_fd(dso);
739  *   }
740  *
741  * Read DSO's data:
742  *   n = dso__data_read_offset(dso_0, &machine, 0, buf, BUFSIZE);
743  *   n = dso__data_read_addr(dso_0, &machine, 0, buf, BUFSIZE);
744  *
745  * Eventually close DSO's fd:
746  *   dso__data_close(dso);
747  *
748  * It is not necessary to close the DSO object data file. Each time new
749  * DSO data file is opened, the limit (RLIMIT_NOFILE/2) is checked. Once
750  * it is crossed, the oldest opened DSO object is closed.
751  *
752  * The dso__delete function calls close_dso function to ensure the
753  * data file descriptor gets closed/unmapped before the dso object
754  * is freed.
755  *
756  * TODO
757 */
758 int dso__data_get_fd(struct dso *dso, struct machine *machine);
759 void dso__data_put_fd(struct dso *dso);
760 void dso__data_close(struct dso *dso);
761 
762 int dso__data_file_size(struct dso *dso, struct machine *machine);
763 off_t dso__data_size(struct dso *dso, struct machine *machine);
764 ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
765 			      u64 offset, u8 *data, ssize_t size);
766 ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
767 			    struct machine *machine, u64 addr,
768 			    u8 *data, ssize_t size);
769 bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by);
770 ssize_t dso__data_write_cache_offs(struct dso *dso, struct machine *machine,
771 				   u64 offset, const u8 *data, ssize_t size);
772 ssize_t dso__data_write_cache_addr(struct dso *dso, struct map *map,
773 				   struct machine *machine, u64 addr,
774 				   const u8 *data, ssize_t size);
775 
776 struct map *dso__new_map(const char *name);
777 struct dso *machine__findnew_kernel(struct machine *machine, const char *name,
778 				    const char *short_name, int dso_type);
779 
780 void dso__reset_find_symbol_cache(struct dso *dso);
781 
782 size_t dso__fprintf_symbols_by_name(struct dso *dso, FILE *fp);
783 size_t dso__fprintf(struct dso *dso, FILE *fp);
784 
dso__binary_type(const struct dso * dso)785 static inline enum dso_binary_type dso__binary_type(const struct dso *dso)
786 {
787 	return RC_CHK_ACCESS(dso)->binary_type;
788 }
789 
dso__set_binary_type(struct dso * dso,enum dso_binary_type bt)790 static inline void dso__set_binary_type(struct dso *dso, enum dso_binary_type bt)
791 {
792 	RC_CHK_ACCESS(dso)->binary_type = bt;
793 }
794 
dso__is_vmlinux(const struct dso * dso)795 static inline bool dso__is_vmlinux(const struct dso *dso)
796 {
797 	enum dso_binary_type bt = dso__binary_type(dso);
798 
799 	return bt == DSO_BINARY_TYPE__VMLINUX || bt == DSO_BINARY_TYPE__GUEST_VMLINUX;
800 }
801 
dso__is_kcore(const struct dso * dso)802 static inline bool dso__is_kcore(const struct dso *dso)
803 {
804 	enum dso_binary_type bt = dso__binary_type(dso);
805 
806 	return bt == DSO_BINARY_TYPE__KCORE || bt == DSO_BINARY_TYPE__GUEST_KCORE;
807 }
808 
dso__is_kallsyms(const struct dso * dso)809 static inline bool dso__is_kallsyms(const struct dso *dso)
810 {
811 	return RC_CHK_ACCESS(dso)->kernel && RC_CHK_ACCESS(dso)->long_name[0] != '/';
812 }
813 
814 bool dso__is_object_file(const struct dso *dso);
815 
816 void dso__free_a2l(struct dso *dso);
817 
818 enum dso_type dso__type(struct dso *dso, struct machine *machine);
819 
820 int dso__strerror_load(struct dso *dso, char *buf, size_t buflen);
821 
822 void reset_fd_limit(void);
823 
824 u64 dso__find_global_type(struct dso *dso, u64 addr);
825 u64 dso__findnew_global_type(struct dso *dso, u64 addr, u64 offset);
826 
827 /* Check if dso name is of format "/tmp/perf-%d.map" */
828 bool perf_pid_map_tid(const char *dso_name, int *tid);
829 bool is_perf_pid_map_name(const char *dso_name);
830 
831 #endif /* __PERF_DSO */
832