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_map;
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 * The main kernel (vmlinux) map
71 struct map *machine__kernel_map(struct machine *machine)
73 return machine->vmlinux_map;
77 * kernel (the one returned by machine__kernel_map()) plus kernel modules maps
80 struct maps *machine__kernel_maps(struct machine *machine)
82 return &machine->kmaps.maps;
85 int machine__get_kernel_start(struct machine *machine);
87 static inline u64 machine__kernel_start(struct machine *machine)
89 if (!machine->kernel_start)
90 machine__get_kernel_start(machine);
91 return machine->kernel_start;
94 static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
96 u64 kernel_start = machine__kernel_start(machine);
98 return ip >= kernel_start;
101 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
103 struct comm *machine__thread_exec_comm(struct machine *machine,
104 struct thread *thread);
106 int machine__process_comm_event(struct machine *machine, union perf_event *event,
107 struct perf_sample *sample);
108 int machine__process_exit_event(struct machine *machine, union perf_event *event,
109 struct perf_sample *sample);
110 int machine__process_fork_event(struct machine *machine, union perf_event *event,
111 struct perf_sample *sample);
112 int machine__process_lost_event(struct machine *machine, union perf_event *event,
113 struct perf_sample *sample);
114 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
115 struct perf_sample *sample);
116 int machine__process_aux_event(struct machine *machine,
117 union perf_event *event);
118 int machine__process_itrace_start_event(struct machine *machine,
119 union perf_event *event);
120 int machine__process_switch_event(struct machine *machine,
121 union perf_event *event);
122 int machine__process_namespaces_event(struct machine *machine,
123 union perf_event *event,
124 struct perf_sample *sample);
125 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
126 struct perf_sample *sample);
127 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
128 struct perf_sample *sample);
129 int machine__process_event(struct machine *machine, union perf_event *event,
130 struct perf_sample *sample);
132 typedef void (*machine__process_t)(struct machine *machine, void *data);
136 struct rb_root guests;
139 void machines__init(struct machines *machines);
140 void machines__exit(struct machines *machines);
142 void machines__process_guests(struct machines *machines,
143 machine__process_t process, void *data);
145 struct machine *machines__add(struct machines *machines, pid_t pid,
146 const char *root_dir);
147 struct machine *machines__find_host(struct machines *machines);
148 struct machine *machines__find(struct machines *machines, pid_t pid);
149 struct machine *machines__findnew(struct machines *machines, pid_t pid);
151 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
152 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
154 struct machine *machine__new_host(void);
155 struct machine *machine__new_kallsyms(void);
156 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
157 void machine__exit(struct machine *machine);
158 void machine__delete_threads(struct machine *machine);
159 void machine__delete(struct machine *machine);
160 void machine__remove_thread(struct machine *machine, struct thread *th);
162 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
163 struct addr_location *al);
164 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
165 struct addr_location *al);
167 struct callchain_cursor;
169 int thread__resolve_callchain(struct thread *thread,
170 struct callchain_cursor *cursor,
171 struct perf_evsel *evsel,
172 struct perf_sample *sample,
173 struct symbol **parent,
174 struct addr_location *root_al,
178 * Default guest kernel is defined by parameter --guestkallsyms
181 static inline bool machine__is_default_guest(struct machine *machine)
183 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
186 static inline bool machine__is_host(struct machine *machine)
188 return machine ? machine->pid == HOST_KERNEL_ID : false;
191 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
192 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
194 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
196 size_t machine__fprintf(struct machine *machine, FILE *fp);
199 struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr,
202 return map_groups__find_symbol(&machine->kmaps, addr, mapp);
206 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
210 return map_groups__find_symbol_by_name(&machine->kmaps, name, mapp);
214 struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,
217 return machine__find_kernel_symbol(machine, addr, mapp);
221 struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
225 return map_groups__find_function_by_name(&machine->kmaps, name, mapp);
228 struct map *machine__findnew_module_map(struct machine *machine, u64 start,
229 const char *filename);
230 int arch__fix_module_text_start(u64 *start, const char *name);
232 int machine__load_kallsyms(struct machine *machine, const char *filename);
234 int machine__load_vmlinux_path(struct machine *machine);
236 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
237 bool (skip)(struct dso *dso, int parm), int parm);
238 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
239 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
240 bool (skip)(struct dso *dso, int parm), int parm);
242 void machine__destroy_kernel_maps(struct machine *machine);
243 int machine__create_kernel_maps(struct machine *machine);
245 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
246 int machines__create_guest_kernel_maps(struct machines *machines);
247 void machines__destroy_kernel_maps(struct machines *machines);
249 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
251 int machine__for_each_thread(struct machine *machine,
252 int (*fn)(struct thread *thread, void *p),
254 int machines__for_each_thread(struct machines *machines,
255 int (*fn)(struct thread *thread, void *p),
258 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
259 struct target *target, struct thread_map *threads,
260 perf_event__handler_t process, bool data_mmap,
261 unsigned int proc_map_timeout,
262 unsigned int nr_threads_synthesize);
264 int machine__synthesize_threads(struct machine *machine, struct target *target,
265 struct thread_map *threads, bool data_mmap,
266 unsigned int proc_map_timeout,
267 unsigned int nr_threads_synthesize)
269 return __machine__synthesize_threads(machine, NULL, target, threads,
270 perf_event__process, data_mmap,
272 nr_threads_synthesize);
275 pid_t machine__get_current_tid(struct machine *machine, int cpu);
276 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
279 * For use with libtraceevent's pevent_set_function_resolver()
281 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
283 #endif /* __PERF_MACHINE_H */