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
23size_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