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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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d1cb9fce92
If perf doesn't mmap on event (like perf stat), it should not create per-task-per-cpu events. So just use a dummy cpu map to create a per-task event for this case. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1337161549-9870-3-git-send-email-namhyung.kim@lge.com [ committer note: renamed .need_mmap to .uses_mmap ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
#ifndef _PERF_TARGET_H
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#define _PERF_TARGET_H
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#include <stdbool.h>
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#include <sys/types.h>
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struct perf_target {
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const char *pid;
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const char *tid;
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const char *cpu_list;
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const char *uid_str;
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uid_t uid;
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bool system_wide;
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bool uses_mmap;
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};
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enum perf_target_errno {
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PERF_ERRNO_TARGET__SUCCESS = 0,
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/*
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* Choose an arbitrary negative big number not to clash with standard
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* errno since SUS requires the errno has distinct positive values.
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* See 'Issue 6' in the link below.
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*
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* http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
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*/
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__PERF_ERRNO_TARGET__START = -10000,
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/* for perf_target__validate() */
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PERF_ERRNO_TARGET__PID_OVERRIDE_CPU = __PERF_ERRNO_TARGET__START,
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PERF_ERRNO_TARGET__PID_OVERRIDE_UID,
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PERF_ERRNO_TARGET__UID_OVERRIDE_CPU,
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PERF_ERRNO_TARGET__PID_OVERRIDE_SYSTEM,
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PERF_ERRNO_TARGET__UID_OVERRIDE_SYSTEM,
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/* for perf_target__parse_uid() */
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PERF_ERRNO_TARGET__INVALID_UID,
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PERF_ERRNO_TARGET__USER_NOT_FOUND,
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__PERF_ERRNO_TARGET__END,
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};
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enum perf_target_errno perf_target__validate(struct perf_target *target);
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enum perf_target_errno perf_target__parse_uid(struct perf_target *target);
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int perf_target__strerror(struct perf_target *target, int errnum, char *buf,
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size_t buflen);
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static inline bool perf_target__has_task(struct perf_target *target)
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{
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return target->tid || target->pid || target->uid_str;
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}
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static inline bool perf_target__has_cpu(struct perf_target *target)
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{
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return target->system_wide || target->cpu_list;
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}
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static inline bool perf_target__none(struct perf_target *target)
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{
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return !perf_target__has_task(target) && !perf_target__has_cpu(target);
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}
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#endif /* _PERF_TARGET_H */
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