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
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(buf: bf, size, fmt: "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(buf: bf + printed, size: size - printed, fmt: "%s%#x", printed ? "|" : "", op);
49
50 return printed;
51}
52

source code of linux/tools/perf/trace/beauty/flock.c