1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_MACHINE_H
3 #define __PERF_MACHINE_H
6 #include <linux/rbtree.h>
23 /* Native host kernel uses -1 as pid index in machine */
24 #define HOST_KERNEL_ID (-1)
25 #define DEFAULT_GUEST_KERNEL_ID (0)
27 extern const char *ref_reloc_sym_names[];
31 #define THREADS__TABLE_BITS 8
32 #define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS)
35 struct rb_root_cached entries;
36 struct rw_semaphore lock;
38 struct list_head dead;
39 struct thread *last_match;
43 struct rb_node rb_node;
47 bool kptr_restrict_warned;
48 bool single_address_space;
51 struct threads threads[THREADS__TABLE_SIZE];
52 struct vdso_info *vdso_info;
56 struct map *vmlinux_map;
59 union { /* Tool specific area */
63 struct machines *machines;
64 bool trampolines_mapped;
67 static inline struct threads *machine__threads(struct machine *machine, pid_t tid)
69 /* Cast it to handle tid == -1 */
70 return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE];
74 * The main kernel (vmlinux) map
77 struct map *machine__kernel_map(struct machine *machine)
79 return machine->vmlinux_map;
83 * kernel (the one returned by machine__kernel_map()) plus kernel modules maps
86 struct maps *machine__kernel_maps(struct machine *machine)
88 return machine->kmaps;
91 int machine__get_kernel_start(struct machine *machine);
93 static inline u64 machine__kernel_start(struct machine *machine)
95 if (!machine->kernel_start)
96 machine__get_kernel_start(machine);
97 return machine->kernel_start;
100 static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
102 u64 kernel_start = machine__kernel_start(machine);
104 return ip >= kernel_start;
107 u8 machine__addr_cpumode(struct machine *machine, u8 cpumode, u64 addr);
109 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
111 struct thread *machine__idle_thread(struct machine *machine);
112 struct comm *machine__thread_exec_comm(struct machine *machine,
113 struct thread *thread);
115 int machine__process_comm_event(struct machine *machine, union perf_event *event,
116 struct perf_sample *sample);
117 int machine__process_exit_event(struct machine *machine, union perf_event *event,
118 struct perf_sample *sample);
119 int machine__process_fork_event(struct machine *machine, union perf_event *event,
120 struct perf_sample *sample);
121 int machine__process_lost_event(struct machine *machine, union perf_event *event,
122 struct perf_sample *sample);
123 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
124 struct perf_sample *sample);
125 int machine__process_aux_event(struct machine *machine,
126 union perf_event *event);
127 int machine__process_itrace_start_event(struct machine *machine,
128 union perf_event *event);
129 int machine__process_aux_output_hw_id_event(struct machine *machine,
130 union perf_event *event);
131 int machine__process_switch_event(struct machine *machine,
132 union perf_event *event);
133 int machine__process_namespaces_event(struct machine *machine,
134 union perf_event *event,
135 struct perf_sample *sample);
136 int machine__process_cgroup_event(struct machine *machine,
137 union perf_event *event,
138 struct perf_sample *sample);
139 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
140 struct perf_sample *sample);
141 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
142 struct perf_sample *sample);
143 int machine__process_ksymbol(struct machine *machine,
144 union perf_event *event,
145 struct perf_sample *sample);
146 int machine__process_text_poke(struct machine *machine,
147 union perf_event *event,
148 struct perf_sample *sample);
149 int machine__process_event(struct machine *machine, union perf_event *event,
150 struct perf_sample *sample);
152 typedef void (*machine__process_t)(struct machine *machine, void *data);
156 struct rb_root_cached guests;
159 void machines__init(struct machines *machines);
160 void machines__exit(struct machines *machines);
162 void machines__process_guests(struct machines *machines,
163 machine__process_t process, void *data);
165 struct machine *machines__add(struct machines *machines, pid_t pid,
166 const char *root_dir);
167 struct machine *machines__find(struct machines *machines, pid_t pid);
168 struct machine *machines__findnew(struct machines *machines, pid_t pid);
169 struct machine *machines__find_guest(struct machines *machines, pid_t pid);
170 struct thread *machines__findnew_guest_code(struct machines *machines, pid_t pid);
171 struct thread *machine__findnew_guest_code(struct machine *machine, pid_t pid);
173 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
174 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
176 struct machine *machine__new_host(void);
177 struct machine *machine__new_kallsyms(void);
178 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
179 void machine__exit(struct machine *machine);
180 void machine__delete_threads(struct machine *machine);
181 void machine__delete(struct machine *machine);
182 void machine__remove_thread(struct machine *machine, struct thread *th);
184 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
185 struct addr_location *al);
186 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
187 struct addr_location *al);
189 struct callchain_cursor;
191 int thread__resolve_callchain(struct thread *thread,
192 struct callchain_cursor *cursor,
194 struct perf_sample *sample,
195 struct symbol **parent,
196 struct addr_location *root_al,
200 * Default guest kernel is defined by parameter --guestkallsyms
203 static inline bool machine__is_default_guest(struct machine *machine)
205 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
208 static inline bool machine__is_host(struct machine *machine)
210 return machine ? machine->pid == HOST_KERNEL_ID : false;
213 bool machine__is(struct machine *machine, const char *arch);
214 bool machine__normalized_is(struct machine *machine, const char *arch);
215 int machine__nr_cpus_avail(struct machine *machine);
217 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
218 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
220 struct dso *machine__findnew_dso_id(struct machine *machine, const char *filename, struct dso_id *id);
221 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
223 size_t machine__fprintf(struct machine *machine, FILE *fp);
226 struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr,
229 return maps__find_symbol(machine->kmaps, addr, mapp);
233 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
237 return maps__find_symbol_by_name(machine->kmaps, name, mapp);
240 int arch__fix_module_text_start(u64 *start, u64 *size, const char *name);
242 int machine__load_kallsyms(struct machine *machine, const char *filename);
244 int machine__load_vmlinux_path(struct machine *machine);
246 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
247 bool (skip)(struct dso *dso, int parm), int parm);
248 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
249 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
250 bool (skip)(struct dso *dso, int parm), int parm);
252 void machine__destroy_kernel_maps(struct machine *machine);
253 int machine__create_kernel_maps(struct machine *machine);
255 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
256 int machines__create_guest_kernel_maps(struct machines *machines);
257 void machines__destroy_kernel_maps(struct machines *machines);
259 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
261 typedef int (*machine__dso_t)(struct dso *dso, struct machine *machine, void *priv);
263 int machine__for_each_dso(struct machine *machine, machine__dso_t fn,
265 int machine__for_each_thread(struct machine *machine,
266 int (*fn)(struct thread *thread, void *p),
268 int machines__for_each_thread(struct machines *machines,
269 int (*fn)(struct thread *thread, void *p),
272 pid_t machine__get_current_tid(struct machine *machine, int cpu);
273 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
276 * For use with libtraceevent's tep_set_function_resolver()
278 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
280 void machine__get_kallsyms_filename(struct machine *machine, char *buf,
283 int machine__create_extra_kernel_maps(struct machine *machine,
286 /* Kernel-space maps for symbols that are outside the main kernel map and module maps */
287 struct extra_kernel_map {
291 char name[KMAP_NAME_LEN];
294 int machine__create_extra_kernel_map(struct machine *machine,
296 struct extra_kernel_map *xm);
298 int machine__map_x86_64_entry_trampolines(struct machine *machine,
301 #endif /* __PERF_MACHINE_H */