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 int guest_cpu; /* For QEMU thread */ 43 refcount_t refcnt; 44 bool comm_set; 45 int comm_len; 46 bool dead; /* if set thread has exited */ 47 struct list_head namespaces_list; 48 struct rw_semaphore namespaces_lock; 49 struct list_head comm_list; 50 struct rw_semaphore comm_lock; 51 u64 db_id; 52 53 void *priv; 54 struct thread_stack *ts; 55 struct nsinfo *nsinfo; 56 struct srccode_state srccode_state; 57 bool filter; 58 int filter_entry_depth; 59 60 /* LBR call stack stitch */ 61 bool lbr_stitch_enable; 62 struct lbr_stitch *lbr_stitch; 63 }; 64 65 struct machine; 66 struct namespaces; 67 struct comm; 68 69 struct thread *thread__new(pid_t pid, pid_t tid); 70 int thread__init_maps(struct thread *thread, struct machine *machine); 71 void thread__delete(struct thread *thread); 72 73 struct thread *thread__get(struct thread *thread); 74 void thread__put(struct thread *thread); 75 76 static inline void __thread__zput(struct thread **thread) 77 { 78 thread__put(*thread); 79 *thread = NULL; 80 } 81 82 #define thread__zput(thread) __thread__zput(&thread) 83 84 static inline void thread__exited(struct thread *thread) 85 { 86 thread->dead = true; 87 } 88 89 struct namespaces *thread__namespaces(struct thread *thread); 90 int thread__set_namespaces(struct thread *thread, u64 timestamp, 91 struct perf_record_namespaces *event); 92 93 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp, 94 bool exec); 95 static inline int thread__set_comm(struct thread *thread, const char *comm, 96 u64 timestamp) 97 { 98 return __thread__set_comm(thread, comm, timestamp, false); 99 } 100 101 int thread__set_comm_from_proc(struct thread *thread); 102 103 int thread__comm_len(struct thread *thread); 104 struct comm *thread__comm(const struct thread *thread); 105 struct comm *thread__exec_comm(const struct thread *thread); 106 const char *thread__comm_str(struct thread *thread); 107 int thread__insert_map(struct thread *thread, struct map *map); 108 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone); 109 size_t thread__fprintf(struct thread *thread, FILE *fp); 110 111 struct thread *thread__main_thread(struct machine *machine, struct thread *thread); 112 113 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr, 114 struct addr_location *al); 115 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr, 116 struct addr_location *al); 117 118 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode, 119 u64 addr, struct addr_location *al); 120 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode, 121 u64 addr, struct addr_location *al); 122 123 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr, 124 struct addr_location *al); 125 126 int thread__memcpy(struct thread *thread, struct machine *machine, 127 void *buf, u64 ip, int len, bool *is64bit); 128 129 static inline void *thread__priv(struct thread *thread) 130 { 131 return thread->priv; 132 } 133 134 static inline void thread__set_priv(struct thread *thread, void *p) 135 { 136 thread->priv = p; 137 } 138 139 static inline bool thread__is_filtered(struct thread *thread) 140 { 141 if (symbol_conf.comm_list && 142 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) { 143 return true; 144 } 145 146 if (symbol_conf.pid_list && 147 !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) { 148 return true; 149 } 150 151 if (symbol_conf.tid_list && 152 !intlist__has_entry(symbol_conf.tid_list, thread->tid)) { 153 return true; 154 } 155 156 return false; 157 } 158 159 void thread__free_stitch_list(struct thread *thread); 160 161 #endif /* __PERF_THREAD_H */ 162