1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __PERF_MACHINE_H 3#define __PERF_MACHINE_H 4 5#include <sys/types.h> 6#include <linux/rbtree.h> 7#include "maps.h" 8#include "dsos.h" 9#include "rwsem.h" 10 11struct addr_location; 12struct branch_stack; 13struct dso; 14struct dso_id; 15struct evsel; 16struct perf_sample; 17struct symbol; 18struct target; 19struct thread; 20union perf_event; 21 22/* Native host kernel uses -1 as pid index in machine */ 23#define HOST_KERNEL_ID (-1) 24#define DEFAULT_GUEST_KERNEL_ID (0) 25 26extern const char *ref_reloc_sym_names[]; 27 28struct vdso_info; 29 30#define THREADS__TABLE_BITS 8 31#define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS) 32 33struct threads { 34 struct rb_root_cached entries; 35 struct rw_semaphore lock; 36 unsigned int nr; 37 struct list_head dead; 38 struct thread *last_match; 39}; 40 41struct machine { 42 struct rb_node rb_node; 43 pid_t pid; 44 u16 id_hdr_size; 45 bool comm_exec; 46 bool kptr_restrict_warned; 47 bool single_address_space; 48 char *root_dir; 49 char *mmap_name; 50 struct threads threads[THREADS__TABLE_SIZE]; 51 struct vdso_info *vdso_info; 52 struct perf_env *env; 53 struct dsos dsos; 54 struct maps kmaps; 55 struct map *vmlinux_map; 56 u64 kernel_start; 57 pid_t *current_tid; 58 union { /* Tool specific area */ 59 void *priv; 60 u64 db_id; 61 }; 62 bool trampolines_mapped; 63}; 64 65static inline struct threads *machine__threads(struct machine *machine, pid_t tid) 66{ 67 /* Cast it to handle tid == -1 */ 68 return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE]; 69} 70 71/* 72 * The main kernel (vmlinux) map 73 */ 74static inline 75struct map *machine__kernel_map(struct machine *machine) 76{ 77 return machine->vmlinux_map; 78} 79 80/* 81 * kernel (the one returned by machine__kernel_map()) plus kernel modules maps 82 */ 83static inline 84struct maps *machine__kernel_maps(struct machine *machine) 85{ 86 return &machine->kmaps; 87} 88 89int machine__get_kernel_start(struct machine *machine); 90 91static inline u64 machine__kernel_start(struct machine *machine) 92{ 93 if (!machine->kernel_start) 94 machine__get_kernel_start(machine); 95 return machine->kernel_start; 96} 97 98static inline bool machine__kernel_ip(struct machine *machine, u64 ip) 99{ 100 u64 kernel_start = machine__kernel_start(machine); 101 102 return ip >= kernel_start; 103} 104 105u8 machine__addr_cpumode(struct machine *machine, u8 cpumode, u64 addr); 106 107struct thread *machine__find_thread(struct machine *machine, pid_t pid, 108 pid_t tid); 109struct comm *machine__thread_exec_comm(struct machine *machine, 110 struct thread *thread); 111 112int machine__process_comm_event(struct machine *machine, union perf_event *event, 113 struct perf_sample *sample); 114int machine__process_exit_event(struct machine *machine, union perf_event *event, 115 struct perf_sample *sample); 116int machine__process_fork_event(struct machine *machine, union perf_event *event, 117 struct perf_sample *sample); 118int machine__process_lost_event(struct machine *machine, union perf_event *event, 119 struct perf_sample *sample); 120int machine__process_lost_samples_event(struct machine *machine, union perf_event *event, 121 struct perf_sample *sample); 122int machine__process_aux_event(struct machine *machine, 123 union perf_event *event); 124int machine__process_itrace_start_event(struct machine *machine, 125 union perf_event *event); 126int machine__process_switch_event(struct machine *machine, 127 union perf_event *event); 128int machine__process_namespaces_event(struct machine *machine, 129 union perf_event *event, 130 struct perf_sample *sample); 131int machine__process_cgroup_event(struct machine *machine, 132 union perf_event *event, 133 struct perf_sample *sample); 134int machine__process_mmap_event(struct machine *machine, union perf_event *event, 135 struct perf_sample *sample); 136int machine__process_mmap2_event(struct machine *machine, union perf_event *event, 137 struct perf_sample *sample); 138int machine__process_ksymbol(struct machine *machine, 139 union perf_event *event, 140 struct perf_sample *sample); 141int machine__process_text_poke(struct machine *machine, 142 union perf_event *event, 143 struct perf_sample *sample); 144int machine__process_event(struct machine *machine, union perf_event *event, 145 struct perf_sample *sample); 146 147typedef void (*machine__process_t)(struct machine *machine, void *data); 148 149struct machines { 150 struct machine host; 151 struct rb_root_cached guests; 152}; 153 154void machines__init(struct machines *machines); 155void machines__exit(struct machines *machines); 156 157void machines__process_guests(struct machines *machines, 158 machine__process_t process, void *data); 159 160struct machine *machines__add(struct machines *machines, pid_t pid, 161 const char *root_dir); 162struct machine *machines__find_host(struct machines *machines); 163struct machine *machines__find(struct machines *machines, pid_t pid); 164struct machine *machines__findnew(struct machines *machines, pid_t pid); 165 166void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size); 167void machines__set_comm_exec(struct machines *machines, bool comm_exec); 168 169struct machine *machine__new_host(void); 170struct machine *machine__new_kallsyms(void); 171int machine__init(struct machine *machine, const char *root_dir, pid_t pid); 172void machine__exit(struct machine *machine); 173void machine__delete_threads(struct machine *machine); 174void machine__delete(struct machine *machine); 175void machine__remove_thread(struct machine *machine, struct thread *th); 176 177struct branch_info *sample__resolve_bstack(struct perf_sample *sample, 178 struct addr_location *al); 179struct mem_info *sample__resolve_mem(struct perf_sample *sample, 180 struct addr_location *al); 181 182struct callchain_cursor; 183 184int thread__resolve_callchain(struct thread *thread, 185 struct callchain_cursor *cursor, 186 struct evsel *evsel, 187 struct perf_sample *sample, 188 struct symbol **parent, 189 struct addr_location *root_al, 190 int max_stack); 191 192/* 193 * Default guest kernel is defined by parameter --guestkallsyms 194 * and --guestmodules 195 */ 196static inline bool machine__is_default_guest(struct machine *machine) 197{ 198 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false; 199} 200 201static inline bool machine__is_host(struct machine *machine) 202{ 203 return machine ? machine->pid == HOST_KERNEL_ID : false; 204} 205 206bool machine__is(struct machine *machine, const char *arch); 207int machine__nr_cpus_avail(struct machine *machine); 208 209struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid); 210struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid); 211 212struct dso *machine__findnew_dso_id(struct machine *machine, const char *filename, struct dso_id *id); 213struct dso *machine__findnew_dso(struct machine *machine, const char *filename); 214 215size_t machine__fprintf(struct machine *machine, FILE *fp); 216 217static inline 218struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr, 219 struct map **mapp) 220{ 221 return maps__find_symbol(&machine->kmaps, addr, mapp); 222} 223 224static inline 225struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine, 226 const char *name, 227 struct map **mapp) 228{ 229 return maps__find_symbol_by_name(&machine->kmaps, name, mapp); 230} 231 232int arch__fix_module_text_start(u64 *start, u64 *size, const char *name); 233 234int machine__load_kallsyms(struct machine *machine, const char *filename); 235 236int machine__load_vmlinux_path(struct machine *machine); 237 238size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp, 239 bool (skip)(struct dso *dso, int parm), int parm); 240size_t machines__fprintf_dsos(struct machines *machines, FILE *fp); 241size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp, 242 bool (skip)(struct dso *dso, int parm), int parm); 243 244void machine__destroy_kernel_maps(struct machine *machine); 245int machine__create_kernel_maps(struct machine *machine); 246 247int machines__create_kernel_maps(struct machines *machines, pid_t pid); 248int machines__create_guest_kernel_maps(struct machines *machines); 249void machines__destroy_kernel_maps(struct machines *machines); 250 251size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); 252 253typedef int (*machine__dso_t)(struct dso *dso, struct machine *machine, void *priv); 254 255int machine__for_each_dso(struct machine *machine, machine__dso_t fn, 256 void *priv); 257int machine__for_each_thread(struct machine *machine, 258 int (*fn)(struct thread *thread, void *p), 259 void *priv); 260int machines__for_each_thread(struct machines *machines, 261 int (*fn)(struct thread *thread, void *p), 262 void *priv); 263 264pid_t machine__get_current_tid(struct machine *machine, int cpu); 265int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid, 266 pid_t tid); 267/* 268 * For use with libtraceevent's tep_set_function_resolver() 269 */ 270char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp); 271 272void machine__get_kallsyms_filename(struct machine *machine, char *buf, 273 size_t bufsz); 274 275int machine__create_extra_kernel_maps(struct machine *machine, 276 struct dso *kernel); 277 278/* Kernel-space maps for symbols that are outside the main kernel map and module maps */ 279struct extra_kernel_map { 280 u64 start; 281 u64 end; 282 u64 pgoff; 283 char name[KMAP_NAME_LEN]; 284}; 285 286int machine__create_extra_kernel_map(struct machine *machine, 287 struct dso *kernel, 288 struct extra_kernel_map *xm); 289 290int machine__map_x86_64_entry_trampolines(struct machine *machine, 291 struct dso *kernel); 292 293#endif /* __PERF_MACHINE_H */ 294