1 // SPDX-License-Identifier: GPL-2.0
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
syscall_arg__scnprintf_eventfd_flags(char * bf,size_t size,struct syscall_arg * arg)14 static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size, struct syscall_arg *arg)
15 {
16 int printed = 0, flags = arg->val;
17
18 if (flags == 0)
19 return scnprintf(bf, size, "NONE");
20 #define P_FLAG(n) \
21 if (flags & EFD_##n) { \
22 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
23 flags &= ~EFD_##n; \
24 }
25
26 P_FLAG(SEMAPHORE);
27 P_FLAG(CLOEXEC);
28 P_FLAG(NONBLOCK);
29 #undef P_FLAG
30
31 if (flags)
32 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
33
34 return printed;
35 }
36
37 #define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
38