cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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eventfd.c (922B)

      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
     14static 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