Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / tools / perf / util / target.h

diff --git a/kernel/tools/perf/util/target.h b/kernel/tools/perf/util/target.h
new file mode 100644 (file)
index 0000000..7381b1c
--- /dev/null
+++ b/kernel/tools/perf/util/target.h
@@ -0,0 +1,79 @@
+#ifndef _PERF_TARGET_H
+#define _PERF_TARGET_H
+
+#include <stdbool.h>
+#include <sys/types.h>
+
+struct target {
+       const char   *pid;
+       const char   *tid;
+       const char   *cpu_list;
+       const char   *uid_str;
+       uid_t        uid;
+       bool         system_wide;
+       bool         uses_mmap;
+       bool         default_per_cpu;
+       bool         per_thread;
+};
+
+enum target_errno {
+       TARGET_ERRNO__SUCCESS           = 0,
+
+       /*
+        * Choose an arbitrary negative big number not to clash with standard
+        * errno since SUS requires the errno has distinct positive values.
+        * See 'Issue 6' in the link below.
+        *
+        * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
+        */
+       __TARGET_ERRNO__START           = -10000,
+
+       /* for target__validate() */
+       TARGET_ERRNO__PID_OVERRIDE_CPU  = __TARGET_ERRNO__START,
+       TARGET_ERRNO__PID_OVERRIDE_UID,
+       TARGET_ERRNO__UID_OVERRIDE_CPU,
+       TARGET_ERRNO__PID_OVERRIDE_SYSTEM,
+       TARGET_ERRNO__UID_OVERRIDE_SYSTEM,
+       TARGET_ERRNO__SYSTEM_OVERRIDE_THREAD,
+
+       /* for target__parse_uid() */
+       TARGET_ERRNO__INVALID_UID,
+       TARGET_ERRNO__USER_NOT_FOUND,
+
+       __TARGET_ERRNO__END,
+};
+
+enum target_errno target__validate(struct target *target);
+enum target_errno target__parse_uid(struct target *target);
+
+int target__strerror(struct target *target, int errnum, char *buf, size_t buflen);
+
+static inline bool target__has_task(struct target *target)
+{
+       return target->tid || target->pid || target->uid_str;
+}
+
+static inline bool target__has_cpu(struct target *target)
+{
+       return target->system_wide || target->cpu_list;
+}
+
+static inline bool target__none(struct target *target)
+{
+       return !target__has_task(target) && !target__has_cpu(target);
+}
+
+static inline bool target__uses_dummy_map(struct target *target)
+{
+       bool use_dummy = false;
+
+       if (target->default_per_cpu)
+               use_dummy = target->per_thread ? true : false;
+       else if (target__has_task(target) ||
+                (!target__has_cpu(target) && !target->uses_mmap))
+               use_dummy = true;
+
+       return use_dummy;
+}
+
+#endif /* _PERF_TARGET_H */