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 <stdio.h> 9 #include <unistd.h> 10 #include <sys/types.h> 11 #include "srccode.h" 12 #include "symbol_conf.h" 13 #include <strlist.h> 14 #include <intlist.h> 15 #include "rwsem.h" 16 #include "event.h" 17 #include "callchain.h" 18 19 struct addr_location; 20 struct map; 21 struct perf_record_namespaces; 22 struct thread_stack; 23 struct unwind_libunwind_ops; 24 25 struct lbr_stitch { 26 struct list_head lists; 27 struct list_head free_lists; 28 struct perf_sample prev_sample; 29 struct callchain_cursor_node *prev_lbr_cursor; 30 }; 31 32 struct thread { 33 union { 34 struct rb_node rb_node; 35 struct list_head node; 36 }; 37 struct maps *maps; 38 pid_t pid_; /* Not all tools update this */ 39 pid_t tid; 40 pid_t ppid; 41 int cpu; 42 refcount_t refcnt; 43 bool comm_set; 44 int comm_len; 45 bool dead; /* if set thread has exited */ 46 struct list_head namespaces_list; 47 struct rw_semaphore namespaces_lock; 48 struct list_head comm_list; 49 struct rw_semaphore comm_lock; 50 u64 db_id; 51 52 void *priv; 53 struct thread_stack *ts; 54 struct nsinfo *nsinfo; 55 struct srccode_state srccode_state; 56 bool filter; 57 int filter_entry_depth; 58 59 /* LBR call stack stitch */ 60 bool lbr_stitch_enable; 61 struct lbr_stitch *lbr_stitch; 62 }; 63 64 struct machine; 65 struct namespaces; 66 struct comm; 67 68 struct thread *thread__new(pid_t pid, pid_t tid); 69 int thread__init_maps(struct thread *thread, struct machine *machine); 70 void thread__delete(struct thread *thread); 71 72 struct thread *thread__get(struct thread *thread); 73 void thread__put(struct thread *thread); 74 75 static inline void __thread__zput(struct thread **thread) 76 { 77 thread__put(*thread); 78 *thread = NULL; 79 } 80 81 #define thread__zput(thread) __thread__zput(&thread) 82 83 static inline void thread__exited(struct thread *thread) 84 { 85 thread->dead = true; 86 } 87 88 struct namespaces *thread__namespaces(struct thread *thread); 89 int thread__set_namespaces(struct thread *thread, u64 timestamp, 90 struct perf_record_namespaces *event); 91 92 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp, 93 bool exec); 94 static inline int thread__set_comm(struct thread *thread, const char *comm, 95 u64 timestamp) 96 { 97 return __thread__set_comm(thread, comm, timestamp, false); 98 } 99 100 int thread__set_comm_from_proc(struct thread *thread); 101 102 int thread__comm_len(struct thread *thread); 103 struct comm *thread__comm(const struct thread *thread); 104 struct comm *thread__exec_comm(const struct thread *thread); 105 const char *thread__comm_str(struct thread *thread); 106 int thread__insert_map(struct thread *thread, struct map *map); 107 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone); 108 size_t thread__fprintf(struct thread *thread, FILE *fp); 109 110 struct thread *thread__main_thread(struct machine *machine, struct thread *thread); 111 112 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr, 113 struct addr_location *al); 114 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr, 115 struct addr_location *al); 116 117 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode, 118 u64 addr, struct addr_location *al); 119 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode, 120 u64 addr, struct addr_location *al); 121 122 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr, 123 struct addr_location *al); 124 125 int thread__memcpy(struct thread *thread, struct machine *machine, 126 void *buf, u64 ip, int len, bool *is64bit); 127 128 static inline void *thread__priv(struct thread *thread) 129 { 130 return thread->priv; 131 } 132 133 static inline void thread__set_priv(struct thread *thread, void *p) 134 { 135 thread->priv = p; 136 } 137 138 static inline bool thread__is_filtered(struct thread *thread) 139 { 140 if (symbol_conf.comm_list && 141 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) { 142 return true; 143 } 144 145 if (symbol_conf.pid_list && 146 !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) { 147 return true; 148 } 149 150 if (symbol_conf.tid_list && 151 !intlist__has_entry(symbol_conf.tid_list, thread->tid)) { 152 return true; 153 } 154 155 return false; 156 } 157 158 void thread__free_stitch_list(struct thread *thread); 159 160 #endif /* __PERF_THREAD_H */ 161