1// SPDX-License-Identifier: LGPL-2.1
 2#ifndef PERF_FLAG_FD_NO_GROUP
 3# define PERF_FLAG_FD_NO_GROUP		(1UL << 0)
 4#endif
 5
 6#ifndef PERF_FLAG_FD_OUTPUT
 7# define PERF_FLAG_FD_OUTPUT		(1UL << 1)
 8#endif
 9
10#ifndef PERF_FLAG_PID_CGROUP
11# define PERF_FLAG_PID_CGROUP		(1UL << 2) /* pid=cgroup id, per-cpu mode only */
12#endif
13
14#ifndef PERF_FLAG_FD_CLOEXEC
15# define PERF_FLAG_FD_CLOEXEC		(1UL << 3) /* O_CLOEXEC */
16#endif
17
18static size_t syscall_arg__scnprintf_perf_flags(char *bf, size_t size,
19						struct syscall_arg *arg)
20{
21	bool show_prefix = arg->show_string_prefix;
22	const char *prefix = "PERF_";
23	int printed = 0, flags = arg->val;
24
25	if (flags == 0)
26		return 0;
27
28#define	P_FLAG(n) \
29	if (flags & PERF_FLAG_##n) { \
30		printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
31		flags &= ~PERF_FLAG_##n; \
32	}
33
34	P_FLAG(FD_NO_GROUP);
35	P_FLAG(FD_OUTPUT);
36	P_FLAG(PID_CGROUP);
37	P_FLAG(FD_CLOEXEC);
38#undef P_FLAG
39
40	if (flags)
41		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
42
43	return printed;
44}
45
46#define SCA_PERF_FLAGS syscall_arg__scnprintf_perf_flags