perf/util/map.c

12 #include "map.h"
105 void map__init(struct map *map, u64 start, u64 end, u64 pgoff, struct dso *dso)
107 	map__set_start(map, start);
108 	map__set_end(map, end);
109 	map__set_pgoff(map, pgoff);
110 	map__set_reloc(map, 0);
111 	map__set_dso(map, dso__get(dso));
112 	map__set_mapping_type(map, MAPPING_TYPE__DSO);
113 	map__set_erange_warned(map, false);
114 	refcount_set(map__refcnt(map), 1);
117 struct map *map__new(struct machine *machine, u64 start, u64 len,
122 	struct map *result;
123 	RC_STRUCT(map) *map;
127 	map = malloc(sizeof(*map));
128 	if (ADD_RC_CHK(result, map)) {
137 		map->prot = prot;
138 		map->flags = flags;
143 				 "/tmp/perf-%d.map", nsinfo__pid(nsi));
175 			map->mapping_type = MAPPING_TYPE__IDENTITY;
221 struct map *map__new2(u64 start, struct dso *dso)
223 	struct map *result;
224 	RC_STRUCT(map) *map;
226 	map = calloc(1, sizeof(*map) + (dso->kernel ? sizeof(struct kmap) : 0));
227 	if (ADD_RC_CHK(result, map)) {
237 bool __map__is_kernel(const struct map *map)
239 	if (!map__dso(map)->kernel)
241 	return machine__kernel_map(maps__machine(map__kmaps((struct map *)map))) == map;
244 bool __map__is_extra_kernel_map(const struct map *map)
246 	struct kmap *kmap = __map__kmap((struct map *)map);
251 bool __map__is_bpf_prog(const struct map *map)
254 	struct dso *dso = map__dso(map);
268 bool __map__is_bpf_image(const struct map *map)
271 	struct dso *dso = map__dso(map);
285 bool __map__is_ool(const struct map *map)
287 	const struct dso *dso = map__dso(map);
292 bool map__has_symbols(const struct map *map)
294 	return dso__has_symbols(map__dso(map));
297 static void map__exit(struct map *map)
299 	BUG_ON(refcount_read(map__refcnt(map)) != 0);
300 	dso__zput(RC_CHK_ACCESS(map)->dso);
303 void map__delete(struct map *map)
305 	map__exit(map);
306 	RC_CHK_FREE(map);
309 void map__put(struct map *map)
311 	if (map && refcount_dec_and_test(map__refcnt(map)))
312 		map__delete(map);
314 		RC_CHK_PUT(map);
317 void map__fixup_start(struct map *map)
319 	struct dso *dso = map__dso(map);
326 		map__set_start(map, sym->start);
330 void map__fixup_end(struct map *map)
332 	struct dso *dso = map__dso(map);
338 		map__set_end(map, sym->end);
344 int map__load(struct map *map)
346 	struct dso *dso = map__dso(map);
353 	nr = dso__load(dso, map);
385 struct symbol *map__find_symbol(struct map *map, u64 addr)
387 	if (map__load(map) < 0)
390 	return dso__find_symbol(map__dso(map), addr);
393 struct symbol *map__find_symbol_by_name_idx(struct map *map, const char *name, size_t *idx)
397 	if (map__load(map) < 0)
400 	dso = map__dso(map);
406 struct symbol *map__find_symbol_by_name(struct map *map, const char *name)
410 	return map__find_symbol_by_name_idx(map, name, &idx);
413 struct map *map__clone(struct map *from)
415 	struct map *result;
416 	RC_STRUCT(map) *map;
417 	size_t size = sizeof(RC_STRUCT(map));
423 	map = memdup(RC_CHK_ACCESS(from), size);
424 	if (ADD_RC_CHK(result, map)) {
425 		refcount_set(&map->refcnt, 1);
426 		map->dso = dso__get(dso);
432 size_t map__fprintf(struct map *map, FILE *fp)
434 	const struct dso *dso = map__dso(map);
437 		       map__start(map), map__end(map), map__pgoff(map), dso->name);
447 static size_t __map__fprintf_dsoname(struct map *map, bool print_off, FILE *fp)
451 	const struct dso *dso = map ? map__dso(map) : NULL;
468 size_t map__fprintf_dsoname(struct map *map, FILE *fp)
470 	return __map__fprintf_dsoname(map, false, fp);
473 size_t map__fprintf_dsoname_dsoff(struct map *map, bool print_off, u64 addr, FILE *fp)
475 	const struct dso *dso = map ? map__dso(map) : NULL;
481 	printed += __map__fprintf_dsoname(map, print_off, fp);
489 char *map__srcline(struct map *map, u64 addr, struct symbol *sym)
491 	if (map == NULL)
494 	return get_srcline(map__dso(map), map__rip_2objdump(map, addr), sym, true, true, addr);
497 int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
500 	const struct dso *dso = map ? map__dso(map) : NULL;
504 		char *srcline = map__srcline(map, addr, NULL);
520  * @map: memory map
524  * map->dso->adjust_symbols==1 for ET_EXEC-like cases except ET_REL which is
529 u64 map__rip_2objdump(struct map *map, u64 rip)
531 	struct kmap *kmap = __map__kmap(map);
532 	const struct dso *dso = map__dso(map);
537 	 * main kernel map, so just use that instead.
543 			struct map *kernel_map = machine__kernel_map(machine);
546 				map = kernel_map;
554 		return rip - map__pgoff(map);
559 	return map__unmap_ip(map, rip) - map__reloc(map);
564  * @map: memory map
568  * objdump and converts it to a memory address.  Note this assumes that @map
570  * e.g. map__rip_2objdump(map__map_ip(map, map__objdump_2mem(map, ip))) == ip
574 u64 map__objdump_2mem(struct map *map, u64 ip)
576 	const struct dso *dso = map__dso(map);
579 		return map__unmap_ip(map, ip);
582 		return map__unmap_ip(map, ip + map__pgoff(map));
585 		return map__unmap_ip(map, ip - dso->text_offset);
587 	return ip + map__reloc(map);
590 bool map__contains_symbol(const struct map *map, const struct symbol *sym)
592 	u64 ip = map__unmap_ip(map, sym->start);
594 	return ip >= map__start(map) && ip < map__end(map);
597 struct kmap *__map__kmap(struct map *map)
599 	const struct dso *dso = map__dso(map);
603 	return (struct kmap *)(&RC_CHK_ACCESS(map)[1]);
606 struct kmap *map__kmap(struct map *map)
608 	struct kmap *kmap = __map__kmap(map);
611 		pr_err("Internal error: map__kmap with a non-kernel map\n");
615 struct maps *map__kmaps(struct map *map)
617 	struct kmap *kmap = map__kmap(map);
620 		pr_err("Internal error: map__kmaps with a non-kernel map\n");