1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __PERF_THREAD_H 3 #define __PERF_THREAD_H 4 5 #include <linux/refcount.h> 6 #include <linux/rbtree.h> 7 #include <linux/list.h> 8 #include <unistd.h> 9 #include <sys/types.h> 10 #include "symbol.h" 11 #include <strlist.h> 12 #include <intlist.h> 13 #include "rwsem.h" 14 15 struct thread_stack; 16 struct unwind_libunwind_ops; 17 18 struct thread { 19 union { 20 struct rb_node rb_node; 21 struct list_head node; 22 }; 23 struct map_groups *mg; 24 pid_t pid_; /* Not all tools update this */ 25 pid_t tid; 26 pid_t ppid; 27 int cpu; 28 refcount_t refcnt; 29 char shortname[3]; 30 bool comm_set; 31 int comm_len; 32 bool dead; /* if set thread has exited */ 33 struct list_head namespaces_list; 34 struct rw_semaphore namespaces_lock; 35 struct list_head comm_list; 36 struct rw_semaphore comm_lock; 37 u64 db_id; 38 39 void *priv; 40 struct thread_stack *ts; 41 struct nsinfo *nsinfo; 42 #ifdef HAVE_LIBUNWIND_SUPPORT 43 void *addr_space; 44 struct unwind_libunwind_ops *unwind_libunwind_ops; 45 #endif 46 }; 47 48 struct machine; 49 struct namespaces; 50 struct comm; 51 52 struct thread *thread__new(pid_t pid, pid_t tid); 53 int thread__init_map_groups(struct thread *thread, struct machine *machine); 54 void thread__delete(struct thread *thread); 55 56 struct thread *thread__get(struct thread *thread); 57 void thread__put(struct thread *thread); 58 59 static inline void __thread__zput(struct thread **thread) 60 { 61 thread__put(*thread); 62 *thread = NULL; 63 } 64 65 #define thread__zput(thread) __thread__zput(&thread) 66 67 static inline void thread__exited(struct thread *thread) 68 { 69 thread->dead = true; 70 } 71 72 struct namespaces *thread__namespaces(const struct thread *thread); 73 int thread__set_namespaces(struct thread *thread, u64 timestamp, 74 struct namespaces_event *event); 75 76 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp, 77 bool exec); 78 static inline int thread__set_comm(struct thread *thread, const char *comm, 79 u64 timestamp) 80 { 81 return __thread__set_comm(thread, comm, timestamp, false); 82 } 83 84 int thread__set_comm_from_proc(struct thread *thread); 85 86 int thread__comm_len(struct thread *thread); 87 struct comm *thread__comm(const struct thread *thread); 88 struct comm *thread__exec_comm(const struct thread *thread); 89 const char *thread__comm_str(const struct thread *thread); 90 int thread__insert_map(struct thread *thread, struct map *map); 91 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp); 92 size_t thread__fprintf(struct thread *thread, FILE *fp); 93 94 struct thread *thread__main_thread(struct machine *machine, struct thread *thread); 95 96 void thread__find_addr_map(struct thread *thread, 97 u8 cpumode, enum map_type type, u64 addr, 98 struct addr_location *al); 99 100 void thread__find_addr_location(struct thread *thread, 101 u8 cpumode, enum map_type type, u64 addr, 102 struct addr_location *al); 103 104 void thread__find_cpumode_addr_location(struct thread *thread, 105 enum map_type type, u64 addr, 106 struct addr_location *al); 107 108 static inline void *thread__priv(struct thread *thread) 109 { 110 return thread->priv; 111 } 112 113 static inline void thread__set_priv(struct thread *thread, void *p) 114 { 115 thread->priv = p; 116 } 117 118 static inline bool thread__is_filtered(struct thread *thread) 119 { 120 if (symbol_conf.comm_list && 121 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) { 122 return true; 123 } 124 125 if (symbol_conf.pid_list && 126 !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) { 127 return true; 128 } 129 130 if (symbol_conf.tid_list && 131 !intlist__has_entry(symbol_conf.tid_list, thread->tid)) { 132 return true; 133 } 134 135 return false; 136 } 137 138 #endif /* __PERF_THREAD_H */ 139