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TOMOYO Linux Cross Reference
Linux/tools/perf/util/thread.h

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  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 

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