LXR linux/tools/perf/trace/beauty/perf_event

   1#ifndef PERF_FLAG_FD_NO_GROUP
   2# define PERF_FLAG_FD_NO_GROUP          (1UL << 0)
   3#endif
   4
   5#ifndef PERF_FLAG_FD_OUTPUT
   6# define PERF_FLAG_FD_OUTPUT            (1UL << 1)
   7#endif
   8
   9#ifndef PERF_FLAG_PID_CGROUP
  10# define PERF_FLAG_PID_CGROUP           (1UL << 2) /* pid=cgroup id, per-cpu mode only */
  11#endif
  12
  13#ifndef PERF_FLAG_FD_CLOEXEC
  14# define PERF_FLAG_FD_CLOEXEC           (1UL << 3) /* O_CLOEXEC */
  15#endif
  16
  17static size_t syscall_arg__scnprintf_perf_flags(char *bf, size_t size,
  18                                                struct syscall_arg *arg)
  19{
  20        int printed = 0, flags = arg->val;
  21
  22        if (flags == 0)
  23                return 0;
  24
  25#define P_FLAG(n) \
  26        if (flags & PERF_FLAG_##n) { \
  27                printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
  28                flags &= ~PERF_FLAG_##n; \
  29        }
  30
  31        P_FLAG(FD_NO_GROUP);
  32        P_FLAG(FD_OUTPUT);
  33        P_FLAG(PID_CGROUP);
  34        P_FLAG(FD_CLOEXEC);
  35#undef P_FLAG
  36
  37        if (flags)
  38                printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
  39
  40        return printed;
  41}
  42
  43#define SCA_PERF_FLAGS syscall_arg__scnprintf_perf_flags
  44