1 #ifndef __PERF_MAP_H
2 #define __PERF_MAP_H
3
4 /* ANDROID_CHANGE_BEGIN */
5 #if 0
6 #include <linux/compiler.h>
7 #include <linux/list.h>
8 #include <linux/rbtree.h>
9 #else
10 #include "include/linux/compiler.h"
11 #include "include/linux/list.h"
12 #include "include/linux/rbtree.h"
13 #endif
14 /* ANDROID_CHANGE_END */
15 #include <stdio.h>
16 #include <stdbool.h>
17 #include "types.h"
18
19 enum map_type {
20 MAP__FUNCTION = 0,
21 MAP__VARIABLE,
22 };
23
24 #define MAP__NR_TYPES (MAP__VARIABLE + 1)
25
26 extern const char *map_type__name[MAP__NR_TYPES];
27
28 struct dso;
29 struct ref_reloc_sym;
30 struct map_groups;
31 struct machine;
32
33 struct map {
34 union {
35 struct rb_node rb_node;
36 struct list_head node;
37 };
38 u64 start;
39 u64 end;
40 u8 /* enum map_type */ type;
41 bool referenced;
42 u32 priv;
43 u64 pgoff;
44
45 /* ip -> dso rip */
46 u64 (*map_ip)(struct map *, u64);
47 /* dso rip -> ip */
48 u64 (*unmap_ip)(struct map *, u64);
49
50 struct dso *dso;
51 struct map_groups *groups;
52 };
53
54 struct kmap {
55 struct ref_reloc_sym *ref_reloc_sym;
56 struct map_groups *kmaps;
57 };
58
59 struct map_groups {
60 struct rb_root maps[MAP__NR_TYPES];
61 struct list_head removed_maps[MAP__NR_TYPES];
62 struct machine *machine;
63 };
64
65 /* Native host kernel uses -1 as pid index in machine */
66 #define HOST_KERNEL_ID (-1)
67 #define DEFAULT_GUEST_KERNEL_ID (0)
68
69 struct machine {
70 struct rb_node rb_node;
71 pid_t pid;
72 char *root_dir;
73 struct list_head user_dsos;
74 struct list_head kernel_dsos;
75 struct map_groups kmaps;
76 struct map *vmlinux_maps[MAP__NR_TYPES];
77 };
78
79 static inline
machine__kernel_map(struct machine * self,enum map_type type)80 struct map *machine__kernel_map(struct machine *self, enum map_type type)
81 {
82 return self->vmlinux_maps[type];
83 }
84
map__kmap(struct map * self)85 static inline struct kmap *map__kmap(struct map *self)
86 {
87 return (struct kmap *)(self + 1);
88 }
89
map__map_ip(struct map * map,u64 ip)90 static inline u64 map__map_ip(struct map *map, u64 ip)
91 {
92 return ip - map->start + map->pgoff;
93 }
94
map__unmap_ip(struct map * map,u64 ip)95 static inline u64 map__unmap_ip(struct map *map, u64 ip)
96 {
97 return ip + map->start - map->pgoff;
98 }
99
identity__map_ip(struct map * map __used,u64 ip)100 static inline u64 identity__map_ip(struct map *map __used, u64 ip)
101 {
102 return ip;
103 }
104
105
106 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
107 u64 map__rip_2objdump(struct map *map, u64 rip);
108 u64 map__objdump_2ip(struct map *map, u64 addr);
109
110 struct symbol;
111
112 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
113
114 void map__init(struct map *self, enum map_type type,
115 u64 start, u64 end, u64 pgoff, struct dso *dso);
116 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
117 u64 pgoff, u32 pid, char *filename,
118 enum map_type type);
119 void map__delete(struct map *self);
120 struct map *map__clone(struct map *self);
121 int map__overlap(struct map *l, struct map *r);
122 size_t map__fprintf(struct map *self, FILE *fp);
123
124 int map__load(struct map *self, symbol_filter_t filter);
125 struct symbol *map__find_symbol(struct map *self,
126 u64 addr, symbol_filter_t filter);
127 struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
128 symbol_filter_t filter);
129 void map__fixup_start(struct map *self);
130 void map__fixup_end(struct map *self);
131
132 void map__reloc_vmlinux(struct map *self);
133
134 size_t __map_groups__fprintf_maps(struct map_groups *self,
135 enum map_type type, int verbose, FILE *fp);
136 void maps__insert(struct rb_root *maps, struct map *map);
137 void maps__remove(struct rb_root *self, struct map *map);
138 struct map *maps__find(struct rb_root *maps, u64 addr);
139 void map_groups__init(struct map_groups *self);
140 void map_groups__exit(struct map_groups *self);
141 int map_groups__clone(struct map_groups *self,
142 struct map_groups *parent, enum map_type type);
143 size_t map_groups__fprintf(struct map_groups *self, int verbose, FILE *fp);
144 size_t map_groups__fprintf_maps(struct map_groups *self, int verbose, FILE *fp);
145
146 typedef void (*machine__process_t)(struct machine *self, void *data);
147
148 void machines__process(struct rb_root *self, machine__process_t process, void *data);
149 struct machine *machines__add(struct rb_root *self, pid_t pid,
150 const char *root_dir);
151 struct machine *machines__find_host(struct rb_root *self);
152 struct machine *machines__find(struct rb_root *self, pid_t pid);
153 struct machine *machines__findnew(struct rb_root *self, pid_t pid);
154 char *machine__mmap_name(struct machine *self, char *bf, size_t size);
155 int machine__init(struct machine *self, const char *root_dir, pid_t pid);
156 void machine__exit(struct machine *self);
157 void machine__delete(struct machine *self);
158
159 /*
160 * Default guest kernel is defined by parameter --guestkallsyms
161 * and --guestmodules
162 */
machine__is_default_guest(struct machine * self)163 static inline bool machine__is_default_guest(struct machine *self)
164 {
165 return self ? self->pid == DEFAULT_GUEST_KERNEL_ID : false;
166 }
167
machine__is_host(struct machine * self)168 static inline bool machine__is_host(struct machine *self)
169 {
170 return self ? self->pid == HOST_KERNEL_ID : false;
171 }
172
map_groups__insert(struct map_groups * self,struct map * map)173 static inline void map_groups__insert(struct map_groups *self, struct map *map)
174 {
175 maps__insert(&self->maps[map->type], map);
176 map->groups = self;
177 }
178
map_groups__remove(struct map_groups * self,struct map * map)179 static inline void map_groups__remove(struct map_groups *self, struct map *map)
180 {
181 maps__remove(&self->maps[map->type], map);
182 }
183
map_groups__find(struct map_groups * self,enum map_type type,u64 addr)184 static inline struct map *map_groups__find(struct map_groups *self,
185 enum map_type type, u64 addr)
186 {
187 return maps__find(&self->maps[type], addr);
188 }
189
190 struct symbol *map_groups__find_symbol(struct map_groups *self,
191 enum map_type type, u64 addr,
192 struct map **mapp,
193 symbol_filter_t filter);
194
195 struct symbol *map_groups__find_symbol_by_name(struct map_groups *self,
196 enum map_type type,
197 const char *name,
198 struct map **mapp,
199 symbol_filter_t filter);
200
201 static inline
machine__find_kernel_symbol(struct machine * self,enum map_type type,u64 addr,struct map ** mapp,symbol_filter_t filter)202 struct symbol *machine__find_kernel_symbol(struct machine *self,
203 enum map_type type, u64 addr,
204 struct map **mapp,
205 symbol_filter_t filter)
206 {
207 return map_groups__find_symbol(&self->kmaps, type, addr, mapp, filter);
208 }
209
210 static inline
machine__find_kernel_function(struct machine * self,u64 addr,struct map ** mapp,symbol_filter_t filter)211 struct symbol *machine__find_kernel_function(struct machine *self, u64 addr,
212 struct map **mapp,
213 symbol_filter_t filter)
214 {
215 return machine__find_kernel_symbol(self, MAP__FUNCTION, addr, mapp, filter);
216 }
217
218 static inline
map_groups__find_function_by_name(struct map_groups * self,const char * name,struct map ** mapp,symbol_filter_t filter)219 struct symbol *map_groups__find_function_by_name(struct map_groups *self,
220 const char *name, struct map **mapp,
221 symbol_filter_t filter)
222 {
223 return map_groups__find_symbol_by_name(self, MAP__FUNCTION, name, mapp, filter);
224 }
225
226 static inline
machine__find_kernel_function_by_name(struct machine * self,const char * name,struct map ** mapp,symbol_filter_t filter)227 struct symbol *machine__find_kernel_function_by_name(struct machine *self,
228 const char *name,
229 struct map **mapp,
230 symbol_filter_t filter)
231 {
232 return map_groups__find_function_by_name(&self->kmaps, name, mapp,
233 filter);
234 }
235
236 int map_groups__fixup_overlappings(struct map_groups *self, struct map *map,
237 int verbose, FILE *fp);
238
239 struct map *map_groups__find_by_name(struct map_groups *self,
240 enum map_type type, const char *name);
241 struct map *machine__new_module(struct machine *self, u64 start, const char *filename);
242
243 void map_groups__flush(struct map_groups *self);
244
245 #endif /* __PERF_MAP_H */
246