1 /*
2 * Copyright (c) 2016 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29 #include <kperf/task_samplers.h>
30 #include <kperf/context.h>
31 #include <kperf/buffer.h>
32 #include <kern/thread.h>
33
34 #include <kern/task.h>
35
36 extern void memorystatus_proc_flags_unsafe(void * v, boolean_t *is_dirty,
37 boolean_t *is_dirty_tracked, boolean_t *allow_idle_exit);
38
39 void
kperf_task_snapshot_sample(task_t task,struct kperf_task_snapshot * tksn)40 kperf_task_snapshot_sample(task_t task, struct kperf_task_snapshot *tksn)
41 {
42 BUF_INFO(PERF_TK_SNAP_SAMPLE | DBG_FUNC_START);
43
44 assert(tksn != NULL);
45
46 tksn->kptksn_flags = 0;
47 if (task->effective_policy.tep_darwinbg) {
48 tksn->kptksn_flags |= KPERF_TASK_FLAG_DARWIN_BG;
49 }
50 if (task->requested_policy.trp_role == TASK_FOREGROUND_APPLICATION) {
51 tksn->kptksn_flags |= KPERF_TASK_FLAG_FOREGROUND;
52 }
53 if (task->requested_policy.trp_boosted == 1) {
54 tksn->kptksn_flags |= KPERF_TASK_FLAG_BOOSTED;
55 }
56 #if CONFIG_MEMORYSTATUS
57 boolean_t dirty = FALSE, dirty_tracked = FALSE, allow_idle_exit = FALSE;
58 memorystatus_proc_flags_unsafe(get_bsdtask_info(task), &dirty, &dirty_tracked, &allow_idle_exit);
59 if (dirty) {
60 tksn->kptksn_flags |= KPERF_TASK_FLAG_DIRTY;
61 }
62 if (dirty_tracked) {
63 tksn->kptksn_flags |= KPERF_TASK_FLAG_DIRTY_TRACKED;
64 }
65 if (allow_idle_exit) {
66 tksn->kptksn_flags |= KPERF_TASK_ALLOW_IDLE_EXIT;
67 }
68 #endif
69
70 tksn->kptksn_suspend_count = task->suspend_count;
71 tksn->kptksn_pageins = (integer_t) MIN(counter_load(&task->pageins), INT32_MAX);
72 struct recount_times_mach times = recount_task_terminated_times(task);
73 tksn->kptksn_user_time_in_terminated_threads = times.rtm_user;
74 tksn->kptksn_system_time_in_terminated_threads = times.rtm_system;
75
76 BUF_INFO(PERF_TK_SNAP_SAMPLE | DBG_FUNC_END);
77 }
78
79 void
kperf_task_snapshot_log(struct kperf_task_snapshot * tksn)80 kperf_task_snapshot_log(struct kperf_task_snapshot *tksn)
81 {
82 assert(tksn != NULL);
83
84 #if defined(__LP64__)
85 BUF_DATA(PERF_TK_SNAP_DATA, tksn->kptksn_flags,
86 ENCODE_UPPER_64(tksn->kptksn_suspend_count) |
87 ENCODE_LOWER_64(tksn->kptksn_pageins),
88 tksn->kptksn_user_time_in_terminated_threads,
89 tksn->kptksn_system_time_in_terminated_threads);
90 #else
91 BUF_DATA(PERF_TK_SNAP_DATA1_32, UPPER_32(tksn->kptksn_flags),
92 LOWER_32(tksn->kptksn_flags),
93 tksn->kptksn_suspend_count,
94 tksn->kptksn_pageins);
95 BUF_DATA(PERF_TK_SNAP_DATA2_32, UPPER_32(tksn->kptksn_user_time_in_terminated_threads),
96 LOWER_32(tksn->kptksn_user_time_in_terminated_threads),
97 UPPER_32(tksn->kptksn_system_time_in_terminated_threads),
98 LOWER_32(tksn->kptksn_system_time_in_terminated_threads));
99 #endif /* defined(__LP64__) */
100 }
101
102 void
kperf_task_info_log(struct kperf_context * ctx)103 kperf_task_info_log(struct kperf_context *ctx)
104 {
105 assert(ctx != NULL);
106
107 BUF_DATA(PERF_TK_INFO_DATA, ctx->cur_pid);
108 }
109