1 // SPDX-License-Identifier: LGPL-2.1
2 
3 #include "trace/beauty/beauty.h"
4 #include <linux/kernel.h>
5 #include <uapi/linux/fcntl.h>
6 
7 #ifndef LOCK_MAND
8 #define LOCK_MAND	 32
9 #endif
10 
11 #ifndef LOCK_READ
12 #define LOCK_READ	 64
13 #endif
14 
15 #ifndef LOCK_WRITE
16 #define LOCK_WRITE	128
17 #endif
18 
19 #ifndef LOCK_RW
20 #define LOCK_RW		192
21 #endif
22 
syscall_arg__scnprintf_flock(char * bf,size_t size,struct syscall_arg * arg)23 size_t syscall_arg__scnprintf_flock(char *bf, size_t size, struct syscall_arg *arg)
24 {
25 	bool show_prefix = arg->show_string_prefix;
26 	const char *prefix = "LOCK_";
27 	int printed = 0, op = arg->val;
28 
29 	if (op == 0)
30 		return scnprintf(bf, size, "NONE");
31 #define	P_CMD(cmd) \
32 	if ((op & LOCK_##cmd) == LOCK_##cmd) { \
33 		printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #cmd); \
34 		op &= ~LOCK_##cmd; \
35 	}
36 
37 	P_CMD(SH);
38 	P_CMD(EX);
39 	P_CMD(NB);
40 	P_CMD(UN);
41 	P_CMD(MAND);
42 	P_CMD(RW);
43 	P_CMD(READ);
44 	P_CMD(WRITE);
45 #undef P_OP
46 
47 	if (op)
48 		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op);
49 
50 	return printed;
51 }
52