Commit | Line | Data |
---|---|---|
6baa0a5a FW |
1 | #include "../perf.h" |
2 | #include <stdlib.h> | |
3 | #include <stdio.h> | |
4 | #include <string.h> | |
b3165f41 | 5 | #include "session.h" |
6baa0a5a FW |
6 | #include "thread.h" |
7 | #include "util.h" | |
6e086437 | 8 | #include "debug.h" |
1902efe7 | 9 | #include "comm.h" |
6baa0a5a | 10 | |
cddcef60 JO |
11 | int thread__init_map_groups(struct thread *thread, struct machine *machine) |
12 | { | |
13 | struct thread *leader; | |
14 | pid_t pid = thread->pid_; | |
15 | ||
1fcb8768 | 16 | if (pid == thread->tid || pid == -1) { |
cddcef60 JO |
17 | thread->mg = map_groups__new(); |
18 | } else { | |
19 | leader = machine__findnew_thread(machine, pid, pid); | |
20 | if (leader) | |
21 | thread->mg = map_groups__get(leader->mg); | |
22 | } | |
23 | ||
24 | return thread->mg ? 0 : -1; | |
25 | } | |
26 | ||
99d725fc | 27 | struct thread *thread__new(pid_t pid, pid_t tid) |
6baa0a5a | 28 | { |
1902efe7 FW |
29 | char *comm_str; |
30 | struct comm *comm; | |
c824c433 | 31 | struct thread *thread = zalloc(sizeof(*thread)); |
6baa0a5a | 32 | |
c824c433 | 33 | if (thread != NULL) { |
c824c433 ACM |
34 | thread->pid_ = pid; |
35 | thread->tid = tid; | |
36 | thread->ppid = -1; | |
bf49c35f | 37 | thread->cpu = -1; |
1902efe7 FW |
38 | INIT_LIST_HEAD(&thread->comm_list); |
39 | ||
40 | comm_str = malloc(32); | |
41 | if (!comm_str) | |
42 | goto err_thread; | |
43 | ||
44 | snprintf(comm_str, 32, ":%d", tid); | |
45 | comm = comm__new(comm_str, 0); | |
46 | free(comm_str); | |
47 | if (!comm) | |
48 | goto err_thread; | |
49 | ||
50 | list_add(&comm->list, &thread->comm_list); | |
6baa0a5a FW |
51 | } |
52 | ||
c824c433 | 53 | return thread; |
1902efe7 FW |
54 | |
55 | err_thread: | |
56 | free(thread); | |
57 | return NULL; | |
6baa0a5a FW |
58 | } |
59 | ||
c824c433 | 60 | void thread__delete(struct thread *thread) |
591765fd | 61 | { |
1902efe7 FW |
62 | struct comm *comm, *tmp; |
63 | ||
9608b84e AH |
64 | if (thread->mg) { |
65 | map_groups__put(thread->mg); | |
66 | thread->mg = NULL; | |
67 | } | |
1902efe7 FW |
68 | list_for_each_entry_safe(comm, tmp, &thread->comm_list, list) { |
69 | list_del(&comm->list); | |
70 | comm__free(comm); | |
71 | } | |
72 | ||
c824c433 | 73 | free(thread); |
591765fd ACM |
74 | } |
75 | ||
4dfced35 | 76 | struct comm *thread__comm(const struct thread *thread) |
6baa0a5a | 77 | { |
1902efe7 FW |
78 | if (list_empty(&thread->comm_list)) |
79 | return NULL; | |
4385d580 | 80 | |
1902efe7 FW |
81 | return list_first_entry(&thread->comm_list, struct comm, list); |
82 | } | |
83 | ||
84 | /* CHECKME: time should always be 0 if event aren't ordered */ | |
85 | int thread__set_comm(struct thread *thread, const char *str, u64 timestamp) | |
86 | { | |
87 | struct comm *new, *curr = thread__comm(thread); | |
3178f58b | 88 | int err; |
1902efe7 FW |
89 | |
90 | /* Override latest entry if it had no specific time coverage */ | |
91 | if (!curr->start) { | |
3178f58b FW |
92 | err = comm__override(curr, str, timestamp); |
93 | if (err) | |
94 | return err; | |
a5285ad9 FW |
95 | } else { |
96 | new = comm__new(str, timestamp); | |
97 | if (!new) | |
98 | return -ENOMEM; | |
99 | list_add(&new->list, &thread->comm_list); | |
4385d580 | 100 | } |
1902efe7 | 101 | |
1902efe7 FW |
102 | thread->comm_set = true; |
103 | ||
104 | return 0; | |
6baa0a5a FW |
105 | } |
106 | ||
b9c5143a FW |
107 | const char *thread__comm_str(const struct thread *thread) |
108 | { | |
1902efe7 FW |
109 | const struct comm *comm = thread__comm(thread); |
110 | ||
111 | if (!comm) | |
112 | return NULL; | |
113 | ||
114 | return comm__str(comm); | |
b9c5143a FW |
115 | } |
116 | ||
1902efe7 | 117 | /* CHECKME: it should probably better return the max comm len from its comm list */ |
c824c433 | 118 | int thread__comm_len(struct thread *thread) |
a4fb581b | 119 | { |
c824c433 | 120 | if (!thread->comm_len) { |
1902efe7 FW |
121 | const char *comm = thread__comm_str(thread); |
122 | if (!comm) | |
a4fb581b | 123 | return 0; |
1902efe7 | 124 | thread->comm_len = strlen(comm); |
a4fb581b FW |
125 | } |
126 | ||
c824c433 | 127 | return thread->comm_len; |
a4fb581b FW |
128 | } |
129 | ||
3f067dca | 130 | size_t thread__fprintf(struct thread *thread, FILE *fp) |
9958e1f0 | 131 | { |
b9c5143a | 132 | return fprintf(fp, "Thread %d %s\n", thread->tid, thread__comm_str(thread)) + |
acebd408 | 133 | map_groups__fprintf(thread->mg, fp); |
6baa0a5a FW |
134 | } |
135 | ||
c824c433 | 136 | void thread__insert_map(struct thread *thread, struct map *map) |
1b46cddf | 137 | { |
acebd408 | 138 | map_groups__fixup_overlappings(thread->mg, map, stderr); |
93d5731d | 139 | map_groups__insert(thread->mg, map); |
6baa0a5a FW |
140 | } |
141 | ||
cddcef60 JO |
142 | static int thread__clone_map_groups(struct thread *thread, |
143 | struct thread *parent) | |
144 | { | |
145 | int i; | |
146 | ||
147 | /* This is new thread, we share map groups for process. */ | |
148 | if (thread->pid_ == parent->pid_) | |
149 | return 0; | |
150 | ||
151 | /* But this one is new process, copy maps. */ | |
152 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
153 | if (map_groups__clone(thread->mg, parent->mg, i) < 0) | |
154 | return -ENOMEM; | |
155 | ||
156 | return 0; | |
157 | } | |
158 | ||
1902efe7 | 159 | int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp) |
95011c60 | 160 | { |
cddcef60 | 161 | int err; |
6baa0a5a | 162 | |
faa5c5c3 | 163 | if (parent->comm_set) { |
1902efe7 FW |
164 | const char *comm = thread__comm_str(parent); |
165 | if (!comm) | |
faa5c5c3 | 166 | return -ENOMEM; |
1902efe7 | 167 | err = thread__set_comm(thread, comm, timestamp); |
8d00be81 | 168 | if (err) |
1902efe7 | 169 | return err; |
c824c433 | 170 | thread->comm_set = true; |
faa5c5c3 | 171 | } |
6baa0a5a | 172 | |
c824c433 | 173 | thread->ppid = parent->tid; |
cddcef60 | 174 | return thread__clone_map_groups(thread, parent); |
6baa0a5a | 175 | } |
52a3cb8c ACM |
176 | |
177 | void thread__find_cpumode_addr_location(struct thread *thread, | |
178 | struct machine *machine, | |
179 | enum map_type type, u64 addr, | |
180 | struct addr_location *al) | |
181 | { | |
182 | size_t i; | |
183 | const u8 const cpumodes[] = { | |
184 | PERF_RECORD_MISC_USER, | |
185 | PERF_RECORD_MISC_KERNEL, | |
186 | PERF_RECORD_MISC_GUEST_USER, | |
187 | PERF_RECORD_MISC_GUEST_KERNEL | |
188 | }; | |
189 | ||
190 | for (i = 0; i < ARRAY_SIZE(cpumodes); i++) { | |
191 | thread__find_addr_location(thread, machine, cpumodes[i], type, | |
192 | addr, al); | |
193 | if (al->map) | |
194 | break; | |
195 | } | |
196 | } |