1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_MACHINE_H
3 #define __PERF_MACHINE_H
6 #include <linux/rbtree.h>
7 #include "map_groups.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_cached 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 u8 machine__addr_cpumode(struct machine *machine, u8 cpumode, u64 addr);
105 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
107 struct comm *machine__thread_exec_comm(struct machine *machine,
108 struct thread *thread);
110 int machine__process_comm_event(struct machine *machine, union perf_event *event,
111 struct perf_sample *sample);
112 int machine__process_exit_event(struct machine *machine, union perf_event *event,
113 struct perf_sample *sample);
114 int machine__process_fork_event(struct machine *machine, union perf_event *event,
115 struct perf_sample *sample);
116 int machine__process_lost_event(struct machine *machine, union perf_event *event,
117 struct perf_sample *sample);
118 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
119 struct perf_sample *sample);
120 int machine__process_aux_event(struct machine *machine,
121 union perf_event *event);
122 int machine__process_itrace_start_event(struct machine *machine,
123 union perf_event *event);
124 int machine__process_switch_event(struct machine *machine,
125 union perf_event *event);
126 int machine__process_namespaces_event(struct machine *machine,
127 union perf_event *event,
128 struct perf_sample *sample);
129 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
130 struct perf_sample *sample);
131 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
132 struct perf_sample *sample);
133 int machine__process_ksymbol(struct machine *machine,
134 union perf_event *event,
135 struct perf_sample *sample);
136 int machine__process_event(struct machine *machine, union perf_event *event,
137 struct perf_sample *sample);
139 typedef void (*machine__process_t)(struct machine *machine, void *data);
143 struct rb_root_cached guests;
146 void machines__init(struct machines *machines);
147 void machines__exit(struct machines *machines);
149 void machines__process_guests(struct machines *machines,
150 machine__process_t process, void *data);
152 struct machine *machines__add(struct machines *machines, pid_t pid,
153 const char *root_dir);
154 struct machine *machines__find_host(struct machines *machines);
155 struct machine *machines__find(struct machines *machines, pid_t pid);
156 struct machine *machines__findnew(struct machines *machines, pid_t pid);
158 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
159 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
161 struct machine *machine__new_host(void);
162 struct machine *machine__new_kallsyms(void);
163 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
164 void machine__exit(struct machine *machine);
165 void machine__delete_threads(struct machine *machine);
166 void machine__delete(struct machine *machine);
167 void machine__remove_thread(struct machine *machine, struct thread *th);
169 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
170 struct addr_location *al);
171 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
172 struct addr_location *al);
174 struct callchain_cursor;
176 int thread__resolve_callchain(struct thread *thread,
177 struct callchain_cursor *cursor,
178 struct perf_evsel *evsel,
179 struct perf_sample *sample,
180 struct symbol **parent,
181 struct addr_location *root_al,
185 * Default guest kernel is defined by parameter --guestkallsyms
188 static inline bool machine__is_default_guest(struct machine *machine)
190 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
193 static inline bool machine__is_host(struct machine *machine)
195 return machine ? machine->pid == HOST_KERNEL_ID : false;
198 bool machine__is(struct machine *machine, const char *arch);
199 int machine__nr_cpus_avail(struct machine *machine);
201 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
202 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
204 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
206 size_t machine__fprintf(struct machine *machine, FILE *fp);
209 struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr,
212 return map_groups__find_symbol(&machine->kmaps, addr, mapp);
216 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
220 return map_groups__find_symbol_by_name(&machine->kmaps, name, mapp);
223 struct map *machine__findnew_module_map(struct machine *machine, u64 start,
224 const char *filename);
225 int arch__fix_module_text_start(u64 *start, u64 *size, const char *name);
227 int machine__load_kallsyms(struct machine *machine, const char *filename);
229 int machine__load_vmlinux_path(struct machine *machine);
231 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
232 bool (skip)(struct dso *dso, int parm), int parm);
233 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
234 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
235 bool (skip)(struct dso *dso, int parm), int parm);
237 void machine__destroy_kernel_maps(struct machine *machine);
238 int machine__create_kernel_maps(struct machine *machine);
240 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
241 int machines__create_guest_kernel_maps(struct machines *machines);
242 void machines__destroy_kernel_maps(struct machines *machines);
244 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
246 int machine__for_each_thread(struct machine *machine,
247 int (*fn)(struct thread *thread, void *p),
249 int machines__for_each_thread(struct machines *machines,
250 int (*fn)(struct thread *thread, void *p),
253 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
254 struct target *target, struct thread_map *threads,
255 perf_event__handler_t process, bool data_mmap,
256 unsigned int nr_threads_synthesize);
258 int machine__synthesize_threads(struct machine *machine, struct target *target,
259 struct thread_map *threads, bool data_mmap,
260 unsigned int nr_threads_synthesize)
262 return __machine__synthesize_threads(machine, NULL, target, threads,
263 perf_event__process, data_mmap,
264 nr_threads_synthesize);
267 pid_t machine__get_current_tid(struct machine *machine, int cpu);
268 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
271 * For use with libtraceevent's tep_set_function_resolver()
273 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
275 void machine__get_kallsyms_filename(struct machine *machine, char *buf,
278 int machine__create_extra_kernel_maps(struct machine *machine,
281 /* Kernel-space maps for symbols that are outside the main kernel map and module maps */
282 struct extra_kernel_map {
286 char name[KMAP_NAME_LEN];
289 int machine__create_extra_kernel_map(struct machine *machine,
291 struct extra_kernel_map *xm);
293 int machine__map_x86_64_entry_trampolines(struct machine *machine,
296 #endif /* __PERF_MACHINE_H */