1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/refcount.h>
6 #include <linux/compiler.h>
7 #include <linux/list.h>
8 #include <linux/rbtree.h>
12 #include <linux/types.h>
13 #include <internal/rc_check.h>
20 /* map__map_ip/map__unmap_ip are given as offsets in the DSO. */
22 /* map__map_ip/map__unmap_ip are just the given ip value. */
23 MAPPING_TYPE__IDENTITY,
26 DECLARE_RC_STRUCT(map) {
35 enum mapping_type mapping_type:8;
42 struct kmap *__map__kmap(struct map *map);
43 struct kmap *map__kmap(struct map *map);
44 struct maps *map__kmaps(struct map *map);
46 static inline struct dso *map__dso(const struct map *map)
48 return RC_CHK_ACCESS(map)->dso;
51 static inline u64 map__start(const struct map *map)
53 return RC_CHK_ACCESS(map)->start;
56 static inline u64 map__end(const struct map *map)
58 return RC_CHK_ACCESS(map)->end;
61 static inline u64 map__pgoff(const struct map *map)
63 return RC_CHK_ACCESS(map)->pgoff;
66 static inline u64 map__reloc(const struct map *map)
68 return RC_CHK_ACCESS(map)->reloc;
71 static inline u32 map__flags(const struct map *map)
73 return RC_CHK_ACCESS(map)->flags;
76 static inline u32 map__prot(const struct map *map)
78 return RC_CHK_ACCESS(map)->prot;
81 static inline bool map__priv(const struct map *map)
83 return RC_CHK_ACCESS(map)->priv;
86 static inline refcount_t *map__refcnt(struct map *map)
88 return &RC_CHK_ACCESS(map)->refcnt;
91 static inline bool map__erange_warned(struct map *map)
93 return RC_CHK_ACCESS(map)->erange_warned;
96 static inline size_t map__size(const struct map *map)
98 return map__end(map) - map__start(map);
102 static inline u64 map__dso_map_ip(const struct map *map, u64 ip)
104 return ip - map__start(map) + map__pgoff(map);
108 static inline u64 map__dso_unmap_ip(const struct map *map, u64 rip)
110 return rip + map__start(map) - map__pgoff(map);
113 static inline u64 map__map_ip(const struct map *map, u64 ip_or_rip)
115 if ((RC_CHK_ACCESS(map)->mapping_type) == MAPPING_TYPE__DSO)
116 return map__dso_map_ip(map, ip_or_rip);
121 static inline u64 map__unmap_ip(const struct map *map, u64 ip_or_rip)
123 if ((RC_CHK_ACCESS(map)->mapping_type) == MAPPING_TYPE__DSO)
124 return map__dso_unmap_ip(map, ip_or_rip);
129 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
130 u64 map__rip_2objdump(struct map *map, u64 rip);
132 /* objdump address -> memory address */
133 u64 map__objdump_2mem(struct map *map, u64 ip);
138 /* map__for_each_symbol - iterate over the symbols in the given map
140 * @map: the 'struct map *' in which symbols are iterated
141 * @pos: the 'struct symbol *' to use as a loop cursor
142 * @n: the 'struct rb_node *' to use as a temporary storage
143 * Note: caller must ensure map->dso is not NULL (map is loaded).
145 #define map__for_each_symbol(map, pos, n) \
146 dso__for_each_symbol(map__dso(map), pos, n)
148 /* map__for_each_symbol_with_name - iterate over the symbols in the given map
149 * that have the given name
151 * @map: the 'struct map *' in which symbols are iterated
152 * @sym_name: the symbol name
153 * @pos: the 'struct symbol *' to use as a loop cursor
154 * @idx: the cursor index in the symbol names array
156 #define __map__for_each_symbol_by_name(map, sym_name, pos, idx) \
157 for (pos = map__find_symbol_by_name_idx(map, sym_name, &idx); \
159 !symbol__match_symbol_name(pos->name, sym_name, \
160 SYMBOL_TAG_INCLUDE__DEFAULT_ONLY); \
161 pos = dso__next_symbol_by_name(map__dso(map), &idx))
163 #define map__for_each_symbol_by_name(map, sym_name, pos, idx) \
164 __map__for_each_symbol_by_name(map, sym_name, (pos), idx)
166 void map__init(struct map *map,
167 u64 start, u64 end, u64 pgoff, struct dso *dso);
172 struct map *map__new(struct machine *machine, u64 start, u64 len,
173 u64 pgoff, struct dso_id *id, u32 prot, u32 flags,
174 struct build_id *bid, char *filename, struct thread *thread);
175 struct map *map__new2(u64 start, struct dso *dso);
176 void map__delete(struct map *map);
177 struct map *map__clone(struct map *map);
179 static inline struct map *map__get(struct map *map)
183 if (RC_CHK_GET(result, map))
184 refcount_inc(map__refcnt(map));
189 void map__put(struct map *map);
191 static inline void __map__zput(struct map **map)
197 #define map__zput(map) __map__zput(&map)
199 size_t map__fprintf(struct map *map, FILE *fp);
200 size_t map__fprintf_dsoname(struct map *map, FILE *fp);
201 size_t map__fprintf_dsoname_dsoff(struct map *map, bool print_off, u64 addr, FILE *fp);
202 char *map__srcline(struct map *map, u64 addr, struct symbol *sym);
203 int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
206 int map__load(struct map *map);
207 struct symbol *map__find_symbol(struct map *map, u64 addr);
208 struct symbol *map__find_symbol_by_name(struct map *map, const char *name);
209 struct symbol *map__find_symbol_by_name_idx(struct map *map, const char *name, size_t *idx);
210 void map__fixup_start(struct map *map);
211 void map__fixup_end(struct map *map);
213 int map__set_kallsyms_ref_reloc_sym(struct map *map, const char *symbol_name,
216 bool __map__is_kernel(const struct map *map);
217 bool __map__is_extra_kernel_map(const struct map *map);
218 bool __map__is_bpf_prog(const struct map *map);
219 bool __map__is_bpf_image(const struct map *map);
220 bool __map__is_ool(const struct map *map);
222 static inline bool __map__is_kmodule(const struct map *map)
224 return !__map__is_kernel(map) && !__map__is_extra_kernel_map(map) &&
225 !__map__is_bpf_prog(map) && !__map__is_ool(map) &&
226 !__map__is_bpf_image(map);
229 bool map__has_symbols(const struct map *map);
231 bool map__contains_symbol(const struct map *map, const struct symbol *sym);
233 #define ENTRY_TRAMPOLINE_NAME "__entry_SYSCALL_64_trampoline"
235 static inline bool is_entry_trampoline(const char *name)
237 return !strcmp(name, ENTRY_TRAMPOLINE_NAME);
240 static inline bool is_bpf_image(const char *name)
242 return strncmp(name, "bpf_trampoline_", sizeof("bpf_trampoline_") - 1) == 0 ||
243 strncmp(name, "bpf_dispatcher_", sizeof("bpf_dispatcher_") - 1) == 0;
246 static inline int is_anon_memory(const char *filename)
248 return !strcmp(filename, "//anon") ||
249 !strncmp(filename, "/dev/zero", sizeof("/dev/zero") - 1) ||
250 !strncmp(filename, "/anon_hugepage", sizeof("/anon_hugepage") - 1);
253 static inline int is_no_dso_memory(const char *filename)
255 return !strncmp(filename, "[stack", 6) ||
256 !strncmp(filename, "/SYSV", 5) ||
257 !strcmp(filename, "[heap]");
260 static inline void map__set_start(struct map *map, u64 start)
262 RC_CHK_ACCESS(map)->start = start;
265 static inline void map__set_end(struct map *map, u64 end)
267 RC_CHK_ACCESS(map)->end = end;
270 static inline void map__set_pgoff(struct map *map, u64 pgoff)
272 RC_CHK_ACCESS(map)->pgoff = pgoff;
275 static inline void map__add_pgoff(struct map *map, u64 inc)
277 RC_CHK_ACCESS(map)->pgoff += inc;
280 static inline void map__set_reloc(struct map *map, u64 reloc)
282 RC_CHK_ACCESS(map)->reloc = reloc;
285 static inline void map__set_priv(struct map *map, int priv)
287 RC_CHK_ACCESS(map)->priv = priv;
290 static inline void map__set_erange_warned(struct map *map, bool erange_warned)
292 RC_CHK_ACCESS(map)->erange_warned = erange_warned;
295 static inline void map__set_dso(struct map *map, struct dso *dso)
297 RC_CHK_ACCESS(map)->dso = dso;
300 static inline void map__set_mapping_type(struct map *map, enum mapping_type type)
302 RC_CHK_ACCESS(map)->mapping_type = type;
305 static inline enum mapping_type map__mapping_type(struct map *map)
307 return RC_CHK_ACCESS(map)->mapping_type;
309 #endif /* __PERF_MAP_H */