xref: /openbmc/linux/tools/perf/trace/beauty/eventfd.c (revision 7aacf86b)
1 #ifndef EFD_SEMAPHORE
2 #define EFD_SEMAPHORE		1
3 #endif
4 
5 #ifndef EFD_NONBLOCK
6 #define EFD_NONBLOCK		00004000
7 #endif
8 
9 #ifndef EFD_CLOEXEC
10 #define EFD_CLOEXEC		02000000
11 #endif
12 
13 static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size, struct syscall_arg *arg)
14 {
15 	int printed = 0, flags = arg->val;
16 
17 	if (flags == 0)
18 		return scnprintf(bf, size, "NONE");
19 #define	P_FLAG(n) \
20 	if (flags & EFD_##n) { \
21 		printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
22 		flags &= ~EFD_##n; \
23 	}
24 
25 	P_FLAG(SEMAPHORE);
26 	P_FLAG(CLOEXEC);
27 	P_FLAG(NONBLOCK);
28 #undef P_FLAG
29 
30 	if (flags)
31 		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
32 
33 	return printed;
34 }
35 
36 #define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
37