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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 "map.h"
 12 #include <strlist.h>
 13 #include <intlist.h>
 14 #include "rwsem.h"
 15 
 16 struct thread_stack;
 17 struct unwind_libunwind_ops;
 18 
 19 struct thread {
 20         union {
 21                 struct rb_node   rb_node;
 22                 struct list_head node;
 23         };
 24         struct map_groups       *mg;
 25         pid_t                   pid_; /* Not all tools update this */
 26         pid_t                   tid;
 27         pid_t                   ppid;
 28         int                     cpu;
 29         refcount_t              refcnt;
 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         struct srccode_state    srccode_state;
 43 #ifdef HAVE_LIBUNWIND_SUPPORT
 44         void                            *addr_space;
 45         struct unwind_libunwind_ops     *unwind_libunwind_ops;
 46 #endif
 47         bool                    filter;
 48         int                     filter_entry_depth;
 49 };
 50 
 51 struct machine;
 52 struct namespaces;
 53 struct comm;
 54 
 55 struct thread *thread__new(pid_t pid, pid_t tid);
 56 int thread__init_map_groups(struct thread *thread, struct machine *machine);
 57 void thread__delete(struct thread *thread);
 58 
 59 struct thread *thread__get(struct thread *thread);
 60 void thread__put(struct thread *thread);
 61 
 62 static inline void __thread__zput(struct thread **thread)
 63 {
 64         thread__put(*thread);
 65         *thread = NULL;
 66 }
 67 
 68 #define thread__zput(thread) __thread__zput(&thread)
 69 
 70 static inline void thread__exited(struct thread *thread)
 71 {
 72         thread->dead = true;
 73 }
 74 
 75 struct namespaces *thread__namespaces(const struct thread *thread);
 76 int thread__set_namespaces(struct thread *thread, u64 timestamp,
 77                            struct namespaces_event *event);
 78 
 79 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
 80                        bool exec);
 81 static inline int thread__set_comm(struct thread *thread, const char *comm,
 82                                    u64 timestamp)
 83 {
 84         return __thread__set_comm(thread, comm, timestamp, false);
 85 }
 86 
 87 int thread__set_comm_from_proc(struct thread *thread);
 88 
 89 int thread__comm_len(struct thread *thread);
 90 struct comm *thread__comm(const struct thread *thread);
 91 struct comm *thread__exec_comm(const struct thread *thread);
 92 const char *thread__comm_str(const struct thread *thread);
 93 int thread__insert_map(struct thread *thread, struct map *map);
 94 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);
 95 size_t thread__fprintf(struct thread *thread, FILE *fp);
 96 
 97 struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
 98 
 99 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
100                              struct addr_location *al);
101 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
102                                 struct addr_location *al);
103 
104 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
105                                    u64 addr, struct addr_location *al);
106 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
107                                       u64 addr, struct addr_location *al);
108 
109 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
110                                         struct addr_location *al);
111 
112 static inline void *thread__priv(struct thread *thread)
113 {
114         return thread->priv;
115 }
116 
117 static inline void thread__set_priv(struct thread *thread, void *p)
118 {
119         thread->priv = p;
120 }
121 
122 static inline bool thread__is_filtered(struct thread *thread)
123 {
124         if (symbol_conf.comm_list &&
125             !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
126                 return true;
127         }
128 
129         if (symbol_conf.pid_list &&
130             !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
131                 return true;
132         }
133 
134         if (symbol_conf.tid_list &&
135             !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
136                 return true;
137         }
138 
139         return false;
140 }
141 
142 #endif  /* __PERF_THREAD_H */
143 

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