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