1 // SPDX-License-Identifier: LGPL-2.1 2 #ifndef PERF_FLAG_FD_NO_GROUP 3 # define PERF_FLAG_FD_NO_GROUP (1UL << 0) 4 #endif 5 6 #ifndef PERF_FLAG_FD_OUTPUT 7 # define PERF_FLAG_FD_OUTPUT (1UL << 1) 8 #endif 9 10 #ifndef PERF_FLAG_PID_CGROUP 11 # define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup id, per-cpu mode only */ 12 #endif 13 14 #ifndef PERF_FLAG_FD_CLOEXEC 15 # define PERF_FLAG_FD_CLOEXEC (1UL << 3) /* O_CLOEXEC */ 16 #endif 17 18 static size_t syscall_arg__scnprintf_perf_flags(char *bf, size_t size, 19 struct syscall_arg *arg) 20 { 21 bool show_prefix = arg->show_string_prefix; 22 const char *prefix = "PERF_"; 23 int printed = 0, flags = arg->val; 24 25 if (flags == 0) 26 return 0; 27 28 #define P_FLAG(n) \ 29 if (flags & PERF_FLAG_##n) { \ 30 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \ 31 flags &= ~PERF_FLAG_##n; \ 32 } 33 34 P_FLAG(FD_NO_GROUP); 35 P_FLAG(FD_OUTPUT); 36 P_FLAG(PID_CGROUP); 37 P_FLAG(FD_CLOEXEC); 38 #undef P_FLAG 39 40 if (flags) 41 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 42 43 return printed; 44 } 45 46 #define SCA_PERF_FLAGS syscall_arg__scnprintf_perf_flags 47