1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _PERF_TARGET_H
3*4882a593Smuzhiyun #define _PERF_TARGET_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <stdbool.h>
6*4882a593Smuzhiyun #include <sys/types.h>
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun struct target {
9*4882a593Smuzhiyun const char *pid;
10*4882a593Smuzhiyun const char *tid;
11*4882a593Smuzhiyun const char *cpu_list;
12*4882a593Smuzhiyun const char *uid_str;
13*4882a593Smuzhiyun uid_t uid;
14*4882a593Smuzhiyun bool system_wide;
15*4882a593Smuzhiyun bool uses_mmap;
16*4882a593Smuzhiyun bool default_per_cpu;
17*4882a593Smuzhiyun bool per_thread;
18*4882a593Smuzhiyun };
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun enum target_errno {
21*4882a593Smuzhiyun TARGET_ERRNO__SUCCESS = 0,
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun /*
24*4882a593Smuzhiyun * Choose an arbitrary negative big number not to clash with standard
25*4882a593Smuzhiyun * errno since SUS requires the errno has distinct positive values.
26*4882a593Smuzhiyun * See 'Issue 6' in the link below.
27*4882a593Smuzhiyun *
28*4882a593Smuzhiyun * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
29*4882a593Smuzhiyun */
30*4882a593Smuzhiyun __TARGET_ERRNO__START = -10000,
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun /* for target__validate() */
33*4882a593Smuzhiyun TARGET_ERRNO__PID_OVERRIDE_CPU = __TARGET_ERRNO__START,
34*4882a593Smuzhiyun TARGET_ERRNO__PID_OVERRIDE_UID,
35*4882a593Smuzhiyun TARGET_ERRNO__UID_OVERRIDE_CPU,
36*4882a593Smuzhiyun TARGET_ERRNO__PID_OVERRIDE_SYSTEM,
37*4882a593Smuzhiyun TARGET_ERRNO__UID_OVERRIDE_SYSTEM,
38*4882a593Smuzhiyun TARGET_ERRNO__SYSTEM_OVERRIDE_THREAD,
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun /* for target__parse_uid() */
41*4882a593Smuzhiyun TARGET_ERRNO__INVALID_UID,
42*4882a593Smuzhiyun TARGET_ERRNO__USER_NOT_FOUND,
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun __TARGET_ERRNO__END,
45*4882a593Smuzhiyun };
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun enum target_errno target__validate(struct target *target);
48*4882a593Smuzhiyun enum target_errno target__parse_uid(struct target *target);
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun int target__strerror(struct target *target, int errnum, char *buf, size_t buflen);
51*4882a593Smuzhiyun
target__has_task(struct target * target)52*4882a593Smuzhiyun static inline bool target__has_task(struct target *target)
53*4882a593Smuzhiyun {
54*4882a593Smuzhiyun return target->tid || target->pid || target->uid_str;
55*4882a593Smuzhiyun }
56*4882a593Smuzhiyun
target__has_cpu(struct target * target)57*4882a593Smuzhiyun static inline bool target__has_cpu(struct target *target)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun return target->system_wide || target->cpu_list;
60*4882a593Smuzhiyun }
61*4882a593Smuzhiyun
target__none(struct target * target)62*4882a593Smuzhiyun static inline bool target__none(struct target *target)
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun return !target__has_task(target) && !target__has_cpu(target);
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun
target__has_per_thread(struct target * target)67*4882a593Smuzhiyun static inline bool target__has_per_thread(struct target *target)
68*4882a593Smuzhiyun {
69*4882a593Smuzhiyun return target->system_wide && target->per_thread;
70*4882a593Smuzhiyun }
71*4882a593Smuzhiyun
target__uses_dummy_map(struct target * target)72*4882a593Smuzhiyun static inline bool target__uses_dummy_map(struct target *target)
73*4882a593Smuzhiyun {
74*4882a593Smuzhiyun bool use_dummy = false;
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun if (target->default_per_cpu)
77*4882a593Smuzhiyun use_dummy = target->per_thread ? true : false;
78*4882a593Smuzhiyun else if (target__has_task(target) ||
79*4882a593Smuzhiyun (!target__has_cpu(target) && !target->uses_mmap))
80*4882a593Smuzhiyun use_dummy = true;
81*4882a593Smuzhiyun else if (target__has_per_thread(target))
82*4882a593Smuzhiyun use_dummy = true;
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun return use_dummy;
85*4882a593Smuzhiyun }
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun #endif /* _PERF_TARGET_H */
88