1 // SPDX-License-Identifier: LGPL-2.1
2
3 #include "trace/beauty/beauty.h"
4 #include <linux/kernel.h>
5 #include <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
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
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