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Commit | Line | Data |
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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" |
66f066d8 | 10 | #include "unwind.h" |
6baa0a5a | 11 | |
cddcef60 JO |
12 | int thread__init_map_groups(struct thread *thread, struct machine *machine) |
13 | { | |
14 | struct thread *leader; | |
15 | pid_t pid = thread->pid_; | |
16 | ||
1fcb8768 | 17 | if (pid == thread->tid || pid == -1) { |
cddcef60 JO |
18 | thread->mg = map_groups__new(); |
19 | } else { | |
20 | leader = machine__findnew_thread(machine, pid, pid); | |
21 | if (leader) | |
22 | thread->mg = map_groups__get(leader->mg); | |
23 | } | |
24 | ||
25 | return thread->mg ? 0 : -1; | |
26 | } | |
27 | ||
99d725fc | 28 | struct thread *thread__new(pid_t pid, pid_t tid) |
6baa0a5a | 29 | { |
1902efe7 FW |
30 | char *comm_str; |
31 | struct comm *comm; | |
c824c433 | 32 | struct thread *thread = zalloc(sizeof(*thread)); |
6baa0a5a | 33 | |
c824c433 | 34 | if (thread != NULL) { |
c824c433 ACM |
35 | thread->pid_ = pid; |
36 | thread->tid = tid; | |
37 | thread->ppid = -1; | |
bf49c35f | 38 | thread->cpu = -1; |
1902efe7 FW |
39 | INIT_LIST_HEAD(&thread->comm_list); |
40 | ||
66f066d8 NK |
41 | if (unwind__prepare_access(thread) < 0) |
42 | goto err_thread; | |
43 | ||
1902efe7 FW |
44 | comm_str = malloc(32); |
45 | if (!comm_str) | |
46 | goto err_thread; | |
47 | ||
48 | snprintf(comm_str, 32, ":%d", tid); | |
65de51f9 | 49 | comm = comm__new(comm_str, 0, false); |
1902efe7 FW |
50 | free(comm_str); |
51 | if (!comm) | |
52 | goto err_thread; | |
53 | ||
54 | list_add(&comm->list, &thread->comm_list); | |
66f066d8 | 55 | |
6baa0a5a FW |
56 | } |
57 | ||
c824c433 | 58 | return thread; |
1902efe7 FW |
59 | |
60 | err_thread: | |
61 | free(thread); | |
62 | return NULL; | |
6baa0a5a FW |
63 | } |
64 | ||
c824c433 | 65 | void thread__delete(struct thread *thread) |
591765fd | 66 | { |
1902efe7 FW |
67 | struct comm *comm, *tmp; |
68 | ||
9608b84e AH |
69 | if (thread->mg) { |
70 | map_groups__put(thread->mg); | |
71 | thread->mg = NULL; | |
72 | } | |
1902efe7 FW |
73 | list_for_each_entry_safe(comm, tmp, &thread->comm_list, list) { |
74 | list_del(&comm->list); | |
75 | comm__free(comm); | |
76 | } | |
66f066d8 | 77 | unwind__finish_access(thread); |
1902efe7 | 78 | |
c824c433 | 79 | free(thread); |
591765fd ACM |
80 | } |
81 | ||
4dfced35 | 82 | struct comm *thread__comm(const struct thread *thread) |
6baa0a5a | 83 | { |
1902efe7 FW |
84 | if (list_empty(&thread->comm_list)) |
85 | return NULL; | |
4385d580 | 86 | |
1902efe7 FW |
87 | return list_first_entry(&thread->comm_list, struct comm, list); |
88 | } | |
89 | ||
65de51f9 AH |
90 | struct comm *thread__exec_comm(const struct thread *thread) |
91 | { | |
92 | struct comm *comm, *last = NULL; | |
93 | ||
94 | list_for_each_entry(comm, &thread->comm_list, list) { | |
95 | if (comm->exec) | |
96 | return comm; | |
97 | last = comm; | |
98 | } | |
99 | ||
100 | return last; | |
101 | } | |
102 | ||
1902efe7 | 103 | /* CHECKME: time should always be 0 if event aren't ordered */ |
65de51f9 AH |
104 | int __thread__set_comm(struct thread *thread, const char *str, u64 timestamp, |
105 | bool exec) | |
1902efe7 FW |
106 | { |
107 | struct comm *new, *curr = thread__comm(thread); | |
3178f58b | 108 | int err; |
1902efe7 FW |
109 | |
110 | /* Override latest entry if it had no specific time coverage */ | |
65de51f9 AH |
111 | if (!curr->start && !curr->exec) { |
112 | err = comm__override(curr, str, timestamp, exec); | |
3178f58b FW |
113 | if (err) |
114 | return err; | |
a5285ad9 | 115 | } else { |
65de51f9 | 116 | new = comm__new(str, timestamp, exec); |
a5285ad9 FW |
117 | if (!new) |
118 | return -ENOMEM; | |
119 | list_add(&new->list, &thread->comm_list); | |
4385d580 | 120 | } |
1902efe7 | 121 | |
1902efe7 FW |
122 | thread->comm_set = true; |
123 | ||
124 | return 0; | |
6baa0a5a FW |
125 | } |
126 | ||
b9c5143a FW |
127 | const char *thread__comm_str(const struct thread *thread) |
128 | { | |
1902efe7 FW |
129 | const struct comm *comm = thread__comm(thread); |
130 | ||
131 | if (!comm) | |
132 | return NULL; | |
133 | ||
134 | return comm__str(comm); | |
b9c5143a FW |
135 | } |
136 | ||
1902efe7 | 137 | /* CHECKME: it should probably better return the max comm len from its comm list */ |
c824c433 | 138 | int thread__comm_len(struct thread *thread) |
a4fb581b | 139 | { |
c824c433 | 140 | if (!thread->comm_len) { |
1902efe7 FW |
141 | const char *comm = thread__comm_str(thread); |
142 | if (!comm) | |
a4fb581b | 143 | return 0; |
1902efe7 | 144 | thread->comm_len = strlen(comm); |
a4fb581b FW |
145 | } |
146 | ||
c824c433 | 147 | return thread->comm_len; |
a4fb581b FW |
148 | } |
149 | ||
3f067dca | 150 | size_t thread__fprintf(struct thread *thread, FILE *fp) |
9958e1f0 | 151 | { |
b9c5143a | 152 | return fprintf(fp, "Thread %d %s\n", thread->tid, thread__comm_str(thread)) + |
acebd408 | 153 | map_groups__fprintf(thread->mg, fp); |
6baa0a5a FW |
154 | } |
155 | ||
c824c433 | 156 | void thread__insert_map(struct thread *thread, struct map *map) |
1b46cddf | 157 | { |
acebd408 | 158 | map_groups__fixup_overlappings(thread->mg, map, stderr); |
93d5731d | 159 | map_groups__insert(thread->mg, map); |
6baa0a5a FW |
160 | } |
161 | ||
cddcef60 JO |
162 | static int thread__clone_map_groups(struct thread *thread, |
163 | struct thread *parent) | |
164 | { | |
165 | int i; | |
166 | ||
167 | /* This is new thread, we share map groups for process. */ | |
168 | if (thread->pid_ == parent->pid_) | |
169 | return 0; | |
170 | ||
171 | /* But this one is new process, copy maps. */ | |
172 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
173 | if (map_groups__clone(thread->mg, parent->mg, i) < 0) | |
174 | return -ENOMEM; | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
1902efe7 | 179 | int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp) |
95011c60 | 180 | { |
cddcef60 | 181 | int err; |
6baa0a5a | 182 | |
faa5c5c3 | 183 | if (parent->comm_set) { |
1902efe7 FW |
184 | const char *comm = thread__comm_str(parent); |
185 | if (!comm) | |
faa5c5c3 | 186 | return -ENOMEM; |
1902efe7 | 187 | err = thread__set_comm(thread, comm, timestamp); |
8d00be81 | 188 | if (err) |
1902efe7 | 189 | return err; |
c824c433 | 190 | thread->comm_set = true; |
faa5c5c3 | 191 | } |
6baa0a5a | 192 | |
c824c433 | 193 | thread->ppid = parent->tid; |
cddcef60 | 194 | return thread__clone_map_groups(thread, parent); |
6baa0a5a | 195 | } |
52a3cb8c ACM |
196 | |
197 | void thread__find_cpumode_addr_location(struct thread *thread, | |
198 | struct machine *machine, | |
199 | enum map_type type, u64 addr, | |
200 | struct addr_location *al) | |
201 | { | |
202 | size_t i; | |
203 | const u8 const cpumodes[] = { | |
204 | PERF_RECORD_MISC_USER, | |
205 | PERF_RECORD_MISC_KERNEL, | |
206 | PERF_RECORD_MISC_GUEST_USER, | |
207 | PERF_RECORD_MISC_GUEST_KERNEL | |
208 | }; | |
209 | ||
210 | for (i = 0; i < ARRAY_SIZE(cpumodes); i++) { | |
211 | thread__find_addr_location(thread, machine, cpumodes[i], type, | |
212 | addr, al); | |
213 | if (al->map) | |
214 | break; | |
215 | } | |
216 | } |