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 bool comm_set; 30 int comm_len; 31 bool dead; /* if set thread has exited */ 32 struct list_head namespaces_list; 33 struct rw_semaphore namespaces_lock; 34 struct list_head comm_list; 35 struct rw_semaphore comm_lock; 36 u64 db_id; 37 38 void *priv; 39 struct thread_stack *ts; 40 struct nsinfo *nsinfo; 41 #ifdef HAVE_LIBUNWIND_SUPPORT 42 void *addr_space; 43 struct unwind_libunwind_ops *unwind_libunwind_ops; 44 #endif 45 }; 46 47 struct machine; 48 struct namespaces; 49 struct comm; 50 51 struct thread *thread__new(pid_t pid, pid_t tid); 52 int thread__init_map_groups(struct thread *thread, struct machine *machine); 53 void thread__delete(struct thread *thread); 54 55 struct thread *thread__get(struct thread *thread); 56 void thread__put(struct thread *thread); 57 58 static inline void __thread__zput(struct thread **thread) 59 { 60 thread__put(*thread); 61 *thread = NULL; 62 } 63 64 #define thread__zput(thread) __thread__zput(&thread) 65 66 static inline void thread__exited(struct thread *thread) 67 { 68 thread->dead = true; 69 } 70 71 struct namespaces *thread__namespaces(const struct thread *thread); 72 int thread__set_namespaces(struct thread *thread, u64 timestamp, 73 struct namespaces_event *event); 74 75 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp, 76 bool exec); 77 static inline int thread__set_comm(struct thread *thread, const char *comm, 78 u64 timestamp) 79 { 80 return __thread__set_comm(thread, comm, timestamp, false); 81 } 82 83 int thread__set_comm_from_proc(struct thread *thread); 84 85 int thread__comm_len(struct thread *thread); 86 struct comm *thread__comm(const struct thread *thread); 87 struct comm *thread__exec_comm(const struct thread *thread); 88 const char *thread__comm_str(const struct thread *thread); 89 int thread__insert_map(struct thread *thread, struct map *map); 90 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp); 91 size_t thread__fprintf(struct thread *thread, FILE *fp); 92 93 struct thread *thread__main_thread(struct machine *machine, struct thread *thread); 94 95 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr, 96 struct addr_location *al); 97 98 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode, 99 u64 addr, struct addr_location *al); 100 101 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr, 102 struct addr_location *al); 103 104 static inline void *thread__priv(struct thread *thread) 105 { 106 return thread->priv; 107 } 108 109 static inline void thread__set_priv(struct thread *thread, void *p) 110 { 111 thread->priv = p; 112 } 113 114 static inline bool thread__is_filtered(struct thread *thread) 115 { 116 if (symbol_conf.comm_list && 117 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) { 118 return true; 119 } 120 121 if (symbol_conf.pid_list && 122 !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) { 123 return true; 124 } 125 126 if (symbol_conf.tid_list && 127 !intlist__has_entry(symbol_conf.tid_list, thread->tid)) { 128 return true; 129 } 130 131 return false; 132 } 133 134 #endif /* __PERF_THREAD_H */ 135