summaryrefslogtreecommitdiffstats
path: root/tools/perf/trace/beauty/flock.c
blob: c14274edd6d9de4ff3576cfbbbd0cb2e92b68115 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
// SPDX-License-Identifier: LGPL-2.1

#include "trace/beauty/beauty.h"
#include <linux/kernel.h>
#include <uapi/linux/fcntl.h>

#ifndef LOCK_MAND
#define LOCK_MAND	 32
#endif

#ifndef LOCK_READ
#define LOCK_READ	 64
#endif

#ifndef LOCK_WRITE
#define LOCK_WRITE	128
#endif

#ifndef LOCK_RW
#define LOCK_RW		192
#endif

size_t syscall_arg__scnprintf_flock(char *bf, size_t size, struct syscall_arg *arg)
{
	bool show_prefix = arg->show_string_prefix;
	const char *prefix = "LOCK_";
	int printed = 0, op = arg->val;

	if (op == 0)
		return scnprintf(bf, size, "NONE");
#define	P_CMD(cmd) \
	if ((op & LOCK_##cmd) == LOCK_##cmd) { \
		printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #cmd); \
		op &= ~LOCK_##cmd; \
	}

	P_CMD(SH);
	P_CMD(EX);
	P_CMD(NB);
	P_CMD(UN);
	P_CMD(MAND);
	P_CMD(RW);
	P_CMD(READ);
	P_CMD(WRITE);
#undef P_OP

	if (op)
		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op);

	return printed;
}