1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_MACHINE_H
3 #define __PERF_MACHINE_H
6 #include <linux/rbtree.h>
20 /* Native host kernel uses -1 as pid index in machine */
21 #define HOST_KERNEL_ID (-1)
22 #define DEFAULT_GUEST_KERNEL_ID (0)
24 extern const char *ref_reloc_sym_names[];
28 #define THREADS__TABLE_BITS 8
29 #define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS)
32 struct rb_root entries;
33 struct rw_semaphore lock;
35 struct list_head dead;
36 struct thread *last_match;
40 struct rb_node rb_node;
44 bool kptr_restrict_warned;
47 struct threads threads[THREADS__TABLE_SIZE];
48 struct vdso_info *vdso_info;
51 struct map_groups kmaps;
52 struct map *vmlinux_maps[MAP__NR_TYPES];
55 union { /* Tool specific area */
61 static inline struct threads *machine__threads(struct machine *machine, pid_t tid)
63 /* Cast it to handle tid == -1 */
64 return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE];
68 struct map *__machine__kernel_map(struct machine *machine, enum map_type type)
70 return machine->vmlinux_maps[type];
74 struct map *machine__kernel_map(struct machine *machine)
76 return __machine__kernel_map(machine, MAP__FUNCTION);
79 int machine__get_kernel_start(struct machine *machine);
81 static inline u64 machine__kernel_start(struct machine *machine)
83 if (!machine->kernel_start)
84 machine__get_kernel_start(machine);
85 return machine->kernel_start;
88 static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
90 u64 kernel_start = machine__kernel_start(machine);
92 return ip >= kernel_start;
95 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
97 struct comm *machine__thread_exec_comm(struct machine *machine,
98 struct thread *thread);
100 int machine__process_comm_event(struct machine *machine, union perf_event *event,
101 struct perf_sample *sample);
102 int machine__process_exit_event(struct machine *machine, union perf_event *event,
103 struct perf_sample *sample);
104 int machine__process_fork_event(struct machine *machine, union perf_event *event,
105 struct perf_sample *sample);
106 int machine__process_lost_event(struct machine *machine, union perf_event *event,
107 struct perf_sample *sample);
108 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
109 struct perf_sample *sample);
110 int machine__process_aux_event(struct machine *machine,
111 union perf_event *event);
112 int machine__process_itrace_start_event(struct machine *machine,
113 union perf_event *event);
114 int machine__process_switch_event(struct machine *machine,
115 union perf_event *event);
116 int machine__process_namespaces_event(struct machine *machine,
117 union perf_event *event,
118 struct perf_sample *sample);
119 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
120 struct perf_sample *sample);
121 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
122 struct perf_sample *sample);
123 int machine__process_event(struct machine *machine, union perf_event *event,
124 struct perf_sample *sample);
126 typedef void (*machine__process_t)(struct machine *machine, void *data);
130 struct rb_root guests;
133 void machines__init(struct machines *machines);
134 void machines__exit(struct machines *machines);
136 void machines__process_guests(struct machines *machines,
137 machine__process_t process, void *data);
139 struct machine *machines__add(struct machines *machines, pid_t pid,
140 const char *root_dir);
141 struct machine *machines__find_host(struct machines *machines);
142 struct machine *machines__find(struct machines *machines, pid_t pid);
143 struct machine *machines__findnew(struct machines *machines, pid_t pid);
145 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
146 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
148 struct machine *machine__new_host(void);
149 struct machine *machine__new_kallsyms(void);
150 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
151 void machine__exit(struct machine *machine);
152 void machine__delete_threads(struct machine *machine);
153 void machine__delete(struct machine *machine);
154 void machine__remove_thread(struct machine *machine, struct thread *th);
156 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
157 struct addr_location *al);
158 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
159 struct addr_location *al);
161 struct callchain_cursor;
163 int thread__resolve_callchain(struct thread *thread,
164 struct callchain_cursor *cursor,
165 struct perf_evsel *evsel,
166 struct perf_sample *sample,
167 struct symbol **parent,
168 struct addr_location *root_al,
172 * Default guest kernel is defined by parameter --guestkallsyms
175 static inline bool machine__is_default_guest(struct machine *machine)
177 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
180 static inline bool machine__is_host(struct machine *machine)
182 return machine ? machine->pid == HOST_KERNEL_ID : false;
185 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
186 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
188 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
190 size_t machine__fprintf(struct machine *machine, FILE *fp);
193 struct symbol *machine__find_kernel_symbol(struct machine *machine,
194 enum map_type type, u64 addr,
197 return map_groups__find_symbol(&machine->kmaps, type, addr, mapp);
201 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
202 enum map_type type, const char *name,
205 return map_groups__find_symbol_by_name(&machine->kmaps, type, name, mapp);
209 struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,
212 return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr,
217 struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
221 return map_groups__find_function_by_name(&machine->kmaps, name, mapp);
224 struct map *machine__findnew_module_map(struct machine *machine, u64 start,
225 const char *filename);
226 int arch__fix_module_text_start(u64 *start, const char *name);
228 int machine__load_kallsyms(struct machine *machine, const char *filename,
230 int machine__load_vmlinux_path(struct machine *machine, enum map_type type);
232 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
233 bool (skip)(struct dso *dso, int parm), int parm);
234 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
235 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
236 bool (skip)(struct dso *dso, int parm), int parm);
238 void machine__destroy_kernel_maps(struct machine *machine);
239 int machine__create_kernel_maps(struct machine *machine);
241 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
242 int machines__create_guest_kernel_maps(struct machines *machines);
243 void machines__destroy_kernel_maps(struct machines *machines);
245 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
247 int machine__for_each_thread(struct machine *machine,
248 int (*fn)(struct thread *thread, void *p),
250 int machines__for_each_thread(struct machines *machines,
251 int (*fn)(struct thread *thread, void *p),
254 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
255 struct target *target, struct thread_map *threads,
256 perf_event__handler_t process, bool data_mmap,
257 unsigned int proc_map_timeout,
258 unsigned int nr_threads_synthesize);
260 int machine__synthesize_threads(struct machine *machine, struct target *target,
261 struct thread_map *threads, bool data_mmap,
262 unsigned int proc_map_timeout,
263 unsigned int nr_threads_synthesize)
265 return __machine__synthesize_threads(machine, NULL, target, threads,
266 perf_event__process, data_mmap,
268 nr_threads_synthesize);
271 pid_t machine__get_current_tid(struct machine *machine, int cpu);
272 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
275 * For use with libtraceevent's pevent_set_function_resolver()
277 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
279 #endif /* __PERF_MACHINE_H */