1 // SPDX-License-Identifier: LGPL-2.1 2 #ifndef EFD_SEMAPHORE 3 #define EFD_SEMAPHORE 1 4 #endif 5 6 #ifndef EFD_NONBLOCK 7 #define EFD_NONBLOCK 00004000 8 #endif 9 10 #ifndef EFD_CLOEXEC 11 #define EFD_CLOEXEC 02000000 12 #endif 13 14 static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size, struct syscall_arg *arg) 15 { 16 bool show_prefix = arg->show_string_prefix; 17 const char *prefix = "EFD_"; 18 int printed = 0, flags = arg->val; 19 20 if (flags == 0) 21 return scnprintf(bf, size, "NONE"); 22 #define P_FLAG(n) \ 23 if (flags & EFD_##n) { \ 24 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \ 25 flags &= ~EFD_##n; \ 26 } 27 28 P_FLAG(SEMAPHORE); 29 P_FLAG(CLOEXEC); 30 P_FLAG(NONBLOCK); 31 #undef P_FLAG 32 33 if (flags) 34 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 35 36 return printed; 37 } 38 39 #define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags 40