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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __PERF_THREAD_H3#define __PERF_THREAD_H4 5#include <linux/refcount.h>6#include <linux/list.h>7#include <stdio.h>8#include <unistd.h>9#include <sys/types.h>10#include "srccode.h"11#include "symbol_conf.h"12#include <strlist.h>13#include <intlist.h>14#include "rwsem.h"15#include "callchain.h"16#include <internal/rc_check.h>17 18struct addr_location;19struct map;20struct perf_record_namespaces;21struct thread_stack;22struct unwind_libunwind_ops;23 24struct lbr_stitch {25 struct list_head lists;26 struct list_head free_lists;27 struct perf_sample prev_sample;28 struct callchain_cursor_node *prev_lbr_cursor;29 unsigned int prev_lbr_cursor_size;30};31 32DECLARE_RC_STRUCT(thread) {33 /** @maps: mmaps associated with this thread. */34 struct maps *maps;35 pid_t pid_; /* Not all tools update this */36 /** @tid: thread ID number unique to a machine. */37 pid_t tid;38 /** @ppid: parent process of the process this thread belongs to. */39 pid_t ppid;40 int cpu;41 int guest_cpu; /* For QEMU thread */42 refcount_t refcnt;43 /**44 * @exited: Has the thread had an exit event. Such threads are usually45 * removed from the machine's threads but some events/tools require46 * access to dead threads.47 */48 bool exited;49 bool comm_set;50 int comm_len;51 struct list_head namespaces_list;52 struct rw_semaphore namespaces_lock;53 struct list_head comm_list;54 struct rw_semaphore comm_lock;55 u64 db_id;56 57 void *priv;58 struct thread_stack *ts;59 struct nsinfo *nsinfo;60 struct srccode_state srccode_state;61 bool filter;62 int filter_entry_depth;63 64 /* LBR call stack stitch */65 bool lbr_stitch_enable;66 struct lbr_stitch *lbr_stitch;67};68 69struct machine;70struct namespaces;71struct comm;72 73struct thread *thread__new(pid_t pid, pid_t tid);74int thread__init_maps(struct thread *thread, struct machine *machine);75void thread__delete(struct thread *thread);76 77void thread__set_priv_destructor(void (*destructor)(void *priv));78 79struct thread *thread__get(struct thread *thread);80void thread__put(struct thread *thread);81 82static inline void __thread__zput(struct thread **thread)83{84 thread__put(*thread);85 *thread = NULL;86}87 88#define thread__zput(thread) __thread__zput(&thread)89 90struct namespaces *thread__namespaces(struct thread *thread);91int thread__set_namespaces(struct thread *thread, u64 timestamp,92 struct perf_record_namespaces *event);93 94int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,95 bool exec);96static inline int thread__set_comm(struct thread *thread, const char *comm,97 u64 timestamp)98{99 return __thread__set_comm(thread, comm, timestamp, false);100}101 102int thread__set_comm_from_proc(struct thread *thread);103 104int thread__comm_len(struct thread *thread);105struct comm *thread__comm(struct thread *thread);106struct comm *thread__exec_comm(struct thread *thread);107const char *thread__comm_str(struct thread *thread);108int thread__insert_map(struct thread *thread, struct map *map);109int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);110size_t thread__fprintf(struct thread *thread, FILE *fp);111 112struct thread *thread__main_thread(struct machine *machine, struct thread *thread);113 114struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,115 struct addr_location *al);116struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,117 struct addr_location *al);118 119struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,120 u64 addr, struct addr_location *al);121struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,122 u64 addr, struct addr_location *al);123 124void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,125 struct addr_location *al);126 127int thread__memcpy(struct thread *thread, struct machine *machine,128 void *buf, u64 ip, int len, bool *is64bit);129 130static inline struct maps *thread__maps(struct thread *thread)131{132 return RC_CHK_ACCESS(thread)->maps;133}134 135static inline void thread__set_maps(struct thread *thread, struct maps *maps)136{137 RC_CHK_ACCESS(thread)->maps = maps;138}139 140static inline pid_t thread__pid(const struct thread *thread)141{142 return RC_CHK_ACCESS(thread)->pid_;143}144 145static inline void thread__set_pid(struct thread *thread, pid_t pid_)146{147 RC_CHK_ACCESS(thread)->pid_ = pid_;148}149 150static inline pid_t thread__tid(const struct thread *thread)151{152 return RC_CHK_ACCESS(thread)->tid;153}154 155static inline void thread__set_tid(struct thread *thread, pid_t tid)156{157 RC_CHK_ACCESS(thread)->tid = tid;158}159 160static inline pid_t thread__ppid(const struct thread *thread)161{162 return RC_CHK_ACCESS(thread)->ppid;163}164 165static inline void thread__set_ppid(struct thread *thread, pid_t ppid)166{167 RC_CHK_ACCESS(thread)->ppid = ppid;168}169 170static inline int thread__cpu(const struct thread *thread)171{172 return RC_CHK_ACCESS(thread)->cpu;173}174 175static inline void thread__set_cpu(struct thread *thread, int cpu)176{177 RC_CHK_ACCESS(thread)->cpu = cpu;178}179 180static inline int thread__guest_cpu(const struct thread *thread)181{182 return RC_CHK_ACCESS(thread)->guest_cpu;183}184 185static inline void thread__set_guest_cpu(struct thread *thread, int guest_cpu)186{187 RC_CHK_ACCESS(thread)->guest_cpu = guest_cpu;188}189 190static inline refcount_t *thread__refcnt(struct thread *thread)191{192 return &RC_CHK_ACCESS(thread)->refcnt;193}194 195static inline void thread__set_exited(struct thread *thread, bool exited)196{197 RC_CHK_ACCESS(thread)->exited = exited;198}199 200static inline bool thread__comm_set(const struct thread *thread)201{202 return RC_CHK_ACCESS(thread)->comm_set;203}204 205static inline void thread__set_comm_set(struct thread *thread, bool set)206{207 RC_CHK_ACCESS(thread)->comm_set = set;208}209 210static inline int thread__var_comm_len(const struct thread *thread)211{212 return RC_CHK_ACCESS(thread)->comm_len;213}214 215static inline void thread__set_comm_len(struct thread *thread, int len)216{217 RC_CHK_ACCESS(thread)->comm_len = len;218}219 220static inline struct list_head *thread__namespaces_list(struct thread *thread)221{222 return &RC_CHK_ACCESS(thread)->namespaces_list;223}224 225static inline int thread__namespaces_list_empty(const struct thread *thread)226{227 return list_empty(&RC_CHK_ACCESS(thread)->namespaces_list);228}229 230static inline struct rw_semaphore *thread__namespaces_lock(struct thread *thread)231{232 return &RC_CHK_ACCESS(thread)->namespaces_lock;233}234 235static inline struct list_head *thread__comm_list(struct thread *thread)236{237 return &RC_CHK_ACCESS(thread)->comm_list;238}239 240static inline struct rw_semaphore *thread__comm_lock(struct thread *thread)241{242 return &RC_CHK_ACCESS(thread)->comm_lock;243}244 245static inline u64 thread__db_id(const struct thread *thread)246{247 return RC_CHK_ACCESS(thread)->db_id;248}249 250static inline void thread__set_db_id(struct thread *thread, u64 db_id)251{252 RC_CHK_ACCESS(thread)->db_id = db_id;253}254 255static inline void *thread__priv(struct thread *thread)256{257 return RC_CHK_ACCESS(thread)->priv;258}259 260static inline void thread__set_priv(struct thread *thread, void *p)261{262 RC_CHK_ACCESS(thread)->priv = p;263}264 265static inline struct thread_stack *thread__ts(struct thread *thread)266{267 return RC_CHK_ACCESS(thread)->ts;268}269 270static inline void thread__set_ts(struct thread *thread, struct thread_stack *ts)271{272 RC_CHK_ACCESS(thread)->ts = ts;273}274 275static inline struct nsinfo *thread__nsinfo(struct thread *thread)276{277 return RC_CHK_ACCESS(thread)->nsinfo;278}279 280static inline struct srccode_state *thread__srccode_state(struct thread *thread)281{282 return &RC_CHK_ACCESS(thread)->srccode_state;283}284 285static inline bool thread__filter(const struct thread *thread)286{287 return RC_CHK_ACCESS(thread)->filter;288}289 290static inline void thread__set_filter(struct thread *thread, bool filter)291{292 RC_CHK_ACCESS(thread)->filter = filter;293}294 295static inline int thread__filter_entry_depth(const struct thread *thread)296{297 return RC_CHK_ACCESS(thread)->filter_entry_depth;298}299 300static inline void thread__set_filter_entry_depth(struct thread *thread, int depth)301{302 RC_CHK_ACCESS(thread)->filter_entry_depth = depth;303}304 305static inline bool thread__lbr_stitch_enable(const struct thread *thread)306{307 return RC_CHK_ACCESS(thread)->lbr_stitch_enable;308}309 310static inline void thread__set_lbr_stitch_enable(struct thread *thread, bool en)311{312 RC_CHK_ACCESS(thread)->lbr_stitch_enable = en;313}314 315static inline struct lbr_stitch *thread__lbr_stitch(struct thread *thread)316{317 return RC_CHK_ACCESS(thread)->lbr_stitch;318}319 320static inline void thread__set_lbr_stitch(struct thread *thread, struct lbr_stitch *lbrs)321{322 RC_CHK_ACCESS(thread)->lbr_stitch = lbrs;323}324 325static inline bool thread__is_filtered(struct thread *thread)326{327 if (symbol_conf.comm_list &&328 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {329 return true;330 }331 332 if (symbol_conf.pid_list &&333 !intlist__has_entry(symbol_conf.pid_list, thread__pid(thread))) {334 return true;335 }336 337 if (symbol_conf.tid_list &&338 !intlist__has_entry(symbol_conf.tid_list, thread__tid(thread))) {339 return true;340 }341 342 return false;343}344 345void thread__free_stitch_list(struct thread *thread);346 347void thread__resolve(struct thread *thread, struct addr_location *al,348 struct perf_sample *sample);349 350#endif /* __PERF_THREAD_H */351