1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_MACHINE_H
3 #define __PERF_MACHINE_H
6 #include <linux/rbtree.h>
22 /* Native host kernel uses -1 as pid index in machine */
23 #define HOST_KERNEL_ID (-1)
24 #define DEFAULT_GUEST_KERNEL_ID (0)
26 extern const char *ref_reloc_sym_names[];
30 #define THREADS__TABLE_BITS 8
31 #define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS)
34 struct rb_root_cached entries;
35 struct rw_semaphore lock;
37 struct list_head dead;
38 struct thread *last_match;
42 struct rb_node rb_node;
46 bool kptr_restrict_warned;
47 bool single_address_space;
50 struct threads threads[THREADS__TABLE_SIZE];
51 struct vdso_info *vdso_info;
55 struct map *vmlinux_map;
58 union { /* Tool specific area */
62 bool trampolines_mapped;
65 static inline struct threads *machine__threads(struct machine *machine, pid_t tid)
67 /* Cast it to handle tid == -1 */
68 return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE];
72 * The main kernel (vmlinux) map
75 struct map *machine__kernel_map(struct machine *machine)
77 return machine->vmlinux_map;
81 * kernel (the one returned by machine__kernel_map()) plus kernel modules maps
84 struct maps *machine__kernel_maps(struct machine *machine)
86 return &machine->kmaps;
89 int machine__get_kernel_start(struct machine *machine);
91 static inline u64 machine__kernel_start(struct machine *machine)
93 if (!machine->kernel_start)
94 machine__get_kernel_start(machine);
95 return machine->kernel_start;
98 static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
100 u64 kernel_start = machine__kernel_start(machine);
102 return ip >= kernel_start;
105 u8 machine__addr_cpumode(struct machine *machine, u8 cpumode, u64 addr);
107 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
109 struct comm *machine__thread_exec_comm(struct machine *machine,
110 struct thread *thread);
112 int machine__process_comm_event(struct machine *machine, union perf_event *event,
113 struct perf_sample *sample);
114 int machine__process_exit_event(struct machine *machine, union perf_event *event,
115 struct perf_sample *sample);
116 int machine__process_fork_event(struct machine *machine, union perf_event *event,
117 struct perf_sample *sample);
118 int machine__process_lost_event(struct machine *machine, union perf_event *event,
119 struct perf_sample *sample);
120 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
121 struct perf_sample *sample);
122 int machine__process_aux_event(struct machine *machine,
123 union perf_event *event);
124 int machine__process_itrace_start_event(struct machine *machine,
125 union perf_event *event);
126 int machine__process_switch_event(struct machine *machine,
127 union perf_event *event);
128 int machine__process_namespaces_event(struct machine *machine,
129 union perf_event *event,
130 struct perf_sample *sample);
131 int machine__process_cgroup_event(struct machine *machine,
132 union perf_event *event,
133 struct perf_sample *sample);
134 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
135 struct perf_sample *sample);
136 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
137 struct perf_sample *sample);
138 int machine__process_ksymbol(struct machine *machine,
139 union perf_event *event,
140 struct perf_sample *sample);
141 int machine__process_event(struct machine *machine, union perf_event *event,
142 struct perf_sample *sample);
144 typedef void (*machine__process_t)(struct machine *machine, void *data);
148 struct rb_root_cached guests;
151 void machines__init(struct machines *machines);
152 void machines__exit(struct machines *machines);
154 void machines__process_guests(struct machines *machines,
155 machine__process_t process, void *data);
157 struct machine *machines__add(struct machines *machines, pid_t pid,
158 const char *root_dir);
159 struct machine *machines__find_host(struct machines *machines);
160 struct machine *machines__find(struct machines *machines, pid_t pid);
161 struct machine *machines__findnew(struct machines *machines, pid_t pid);
163 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
164 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
166 struct machine *machine__new_host(void);
167 struct machine *machine__new_kallsyms(void);
168 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
169 void machine__exit(struct machine *machine);
170 void machine__delete_threads(struct machine *machine);
171 void machine__delete(struct machine *machine);
172 void machine__remove_thread(struct machine *machine, struct thread *th);
174 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
175 struct addr_location *al);
176 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
177 struct addr_location *al);
179 struct callchain_cursor;
181 int thread__resolve_callchain(struct thread *thread,
182 struct callchain_cursor *cursor,
184 struct perf_sample *sample,
185 struct symbol **parent,
186 struct addr_location *root_al,
190 * Default guest kernel is defined by parameter --guestkallsyms
193 static inline bool machine__is_default_guest(struct machine *machine)
195 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
198 static inline bool machine__is_host(struct machine *machine)
200 return machine ? machine->pid == HOST_KERNEL_ID : false;
203 bool machine__is(struct machine *machine, const char *arch);
204 int machine__nr_cpus_avail(struct machine *machine);
206 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
207 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
209 struct dso *machine__findnew_dso_id(struct machine *machine, const char *filename, struct dso_id *id);
210 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
212 size_t machine__fprintf(struct machine *machine, FILE *fp);
215 struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr,
218 return maps__find_symbol(&machine->kmaps, addr, mapp);
222 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
226 return maps__find_symbol_by_name(&machine->kmaps, name, mapp);
229 int arch__fix_module_text_start(u64 *start, u64 *size, const char *name);
231 int machine__load_kallsyms(struct machine *machine, const char *filename);
233 int machine__load_vmlinux_path(struct machine *machine);
235 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
236 bool (skip)(struct dso *dso, int parm), int parm);
237 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
238 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
239 bool (skip)(struct dso *dso, int parm), int parm);
241 void machine__destroy_kernel_maps(struct machine *machine);
242 int machine__create_kernel_maps(struct machine *machine);
244 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
245 int machines__create_guest_kernel_maps(struct machines *machines);
246 void machines__destroy_kernel_maps(struct machines *machines);
248 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
250 int machine__for_each_thread(struct machine *machine,
251 int (*fn)(struct thread *thread, void *p),
253 int machines__for_each_thread(struct machines *machines,
254 int (*fn)(struct thread *thread, void *p),
257 pid_t machine__get_current_tid(struct machine *machine, int cpu);
258 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
261 * For use with libtraceevent's tep_set_function_resolver()
263 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
265 void machine__get_kallsyms_filename(struct machine *machine, char *buf,
268 int machine__create_extra_kernel_maps(struct machine *machine,
271 /* Kernel-space maps for symbols that are outside the main kernel map and module maps */
272 struct extra_kernel_map {
276 char name[KMAP_NAME_LEN];
279 int machine__create_extra_kernel_map(struct machine *machine,
281 struct extra_kernel_map *xm);
283 int machine__map_x86_64_entry_trampolines(struct machine *machine,
286 #endif /* __PERF_MACHINE_H */