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;
45 bool single_address_space;
48 struct threads threads[THREADS__TABLE_SIZE];
49 struct vdso_info *vdso_info;
52 struct map_groups kmaps;
53 struct map *vmlinux_map;
56 union { /* Tool specific area */
60 bool trampolines_mapped;
63 static inline struct threads *machine__threads(struct machine *machine, pid_t tid)
65 /* Cast it to handle tid == -1 */
66 return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE];
70 * The main kernel (vmlinux) map
73 struct map *machine__kernel_map(struct machine *machine)
75 return machine->vmlinux_map;
79 * kernel (the one returned by machine__kernel_map()) plus kernel modules maps
82 struct maps *machine__kernel_maps(struct machine *machine)
84 return &machine->kmaps.maps;
87 int machine__get_kernel_start(struct machine *machine);
89 static inline u64 machine__kernel_start(struct machine *machine)
91 if (!machine->kernel_start)
92 machine__get_kernel_start(machine);
93 return machine->kernel_start;
96 static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
98 u64 kernel_start = machine__kernel_start(machine);
100 return ip >= kernel_start;
103 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
105 struct comm *machine__thread_exec_comm(struct machine *machine,
106 struct thread *thread);
108 int machine__process_comm_event(struct machine *machine, union perf_event *event,
109 struct perf_sample *sample);
110 int machine__process_exit_event(struct machine *machine, union perf_event *event,
111 struct perf_sample *sample);
112 int machine__process_fork_event(struct machine *machine, union perf_event *event,
113 struct perf_sample *sample);
114 int machine__process_lost_event(struct machine *machine, union perf_event *event,
115 struct perf_sample *sample);
116 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
117 struct perf_sample *sample);
118 int machine__process_aux_event(struct machine *machine,
119 union perf_event *event);
120 int machine__process_itrace_start_event(struct machine *machine,
121 union perf_event *event);
122 int machine__process_switch_event(struct machine *machine,
123 union perf_event *event);
124 int machine__process_namespaces_event(struct machine *machine,
125 union perf_event *event,
126 struct perf_sample *sample);
127 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
128 struct perf_sample *sample);
129 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
130 struct perf_sample *sample);
131 int machine__process_event(struct machine *machine, union perf_event *event,
132 struct perf_sample *sample);
134 typedef void (*machine__process_t)(struct machine *machine, void *data);
138 struct rb_root guests;
141 void machines__init(struct machines *machines);
142 void machines__exit(struct machines *machines);
144 void machines__process_guests(struct machines *machines,
145 machine__process_t process, void *data);
147 struct machine *machines__add(struct machines *machines, pid_t pid,
148 const char *root_dir);
149 struct machine *machines__find_host(struct machines *machines);
150 struct machine *machines__find(struct machines *machines, pid_t pid);
151 struct machine *machines__findnew(struct machines *machines, pid_t pid);
153 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
154 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
156 struct machine *machine__new_host(void);
157 struct machine *machine__new_kallsyms(void);
158 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
159 void machine__exit(struct machine *machine);
160 void machine__delete_threads(struct machine *machine);
161 void machine__delete(struct machine *machine);
162 void machine__remove_thread(struct machine *machine, struct thread *th);
164 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
165 struct addr_location *al);
166 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
167 struct addr_location *al);
169 struct callchain_cursor;
171 int thread__resolve_callchain(struct thread *thread,
172 struct callchain_cursor *cursor,
173 struct perf_evsel *evsel,
174 struct perf_sample *sample,
175 struct symbol **parent,
176 struct addr_location *root_al,
180 * Default guest kernel is defined by parameter --guestkallsyms
183 static inline bool machine__is_default_guest(struct machine *machine)
185 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
188 static inline bool machine__is_host(struct machine *machine)
190 return machine ? machine->pid == HOST_KERNEL_ID : false;
193 bool machine__is(struct machine *machine, const char *arch);
194 int machine__nr_cpus_avail(struct machine *machine);
196 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
197 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
199 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
201 size_t machine__fprintf(struct machine *machine, FILE *fp);
204 struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr,
207 return map_groups__find_symbol(&machine->kmaps, addr, mapp);
211 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
215 return map_groups__find_symbol_by_name(&machine->kmaps, name, mapp);
218 struct map *machine__findnew_module_map(struct machine *machine, u64 start,
219 const char *filename);
220 int arch__fix_module_text_start(u64 *start, const char *name);
222 int machine__load_kallsyms(struct machine *machine, const char *filename);
224 int machine__load_vmlinux_path(struct machine *machine);
226 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
227 bool (skip)(struct dso *dso, int parm), int parm);
228 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
229 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
230 bool (skip)(struct dso *dso, int parm), int parm);
232 void machine__destroy_kernel_maps(struct machine *machine);
233 int machine__create_kernel_maps(struct machine *machine);
235 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
236 int machines__create_guest_kernel_maps(struct machines *machines);
237 void machines__destroy_kernel_maps(struct machines *machines);
239 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
241 int machine__for_each_thread(struct machine *machine,
242 int (*fn)(struct thread *thread, void *p),
244 int machines__for_each_thread(struct machines *machines,
245 int (*fn)(struct thread *thread, void *p),
248 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
249 struct target *target, struct thread_map *threads,
250 perf_event__handler_t process, bool data_mmap,
251 unsigned int proc_map_timeout,
252 unsigned int nr_threads_synthesize);
254 int machine__synthesize_threads(struct machine *machine, struct target *target,
255 struct thread_map *threads, bool data_mmap,
256 unsigned int proc_map_timeout,
257 unsigned int nr_threads_synthesize)
259 return __machine__synthesize_threads(machine, NULL, target, threads,
260 perf_event__process, data_mmap,
262 nr_threads_synthesize);
265 pid_t machine__get_current_tid(struct machine *machine, int cpu);
266 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
269 * For use with libtraceevent's tep_set_function_resolver()
271 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
273 void machine__get_kallsyms_filename(struct machine *machine, char *buf,
276 int machine__create_extra_kernel_maps(struct machine *machine,
279 /* Kernel-space maps for symbols that are outside the main kernel map and module maps */
280 struct extra_kernel_map {
284 char name[KMAP_NAME_LEN];
287 int machine__create_extra_kernel_map(struct machine *machine,
289 struct extra_kernel_map *xm);
291 int machine__map_x86_64_entry_trampolines(struct machine *machine,
294 #endif /* __PERF_MACHINE_H */