1// SPDX-License-Identifier: LGPL-2.1
2/*
3 * trace/beauty/pkey_alloc.c
4 *
5 * Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
6 */
7
8#include "trace/beauty/beauty.h"
9#include <linux/kernel.h>
10#include <linux/log2.h>
11
12size_t strarray__scnprintf_flags(struct strarray *sa, char *bf, size_t size, bool show_prefix, unsigned long flags)
13{
14 int i, printed = 0;
15
16 if (flags == 0) {
17 const char *s = sa->entries[0];
18 if (s)
19 return scnprintf(buf: bf, size, fmt: "%s%s", show_prefix ? sa->prefix : "", s);
20 return scnprintf(buf: bf, size, fmt: "%d", 0);
21 }
22
23 for (i = 1; i < sa->nr_entries; ++i) {
24 unsigned long bit = 1UL << (i - 1);
25
26 if (!(flags & bit))
27 continue;
28
29 if (printed != 0)
30 printed += scnprintf(buf: bf + printed, size: size - printed, fmt: "|");
31
32 if (sa->entries[i] != NULL)
33 printed += scnprintf(buf: bf + printed, size: size - printed, fmt: "%s%s", show_prefix ? sa->prefix : "", sa->entries[i]);
34 else
35 printed += scnprintf(buf: bf + printed, size: size - printed, fmt: "0x%#", bit);
36 }
37
38 return printed;
39}
40
41static size_t pkey_alloc__scnprintf_access_rights(int access_rights, char *bf, size_t size, bool show_prefix)
42{
43#include "trace/beauty/generated/pkey_alloc_access_rights_array.c"
44 static DEFINE_STRARRAY(pkey_alloc_access_rights, "PKEY_");
45
46 return strarray__scnprintf_flags(&strarray__pkey_alloc_access_rights, bf, size, show_prefix, access_rights);
47}
48
49size_t syscall_arg__scnprintf_pkey_alloc_access_rights(char *bf, size_t size, struct syscall_arg *arg)
50{
51 unsigned long cmd = arg->val;
52
53 return pkey_alloc__scnprintf_access_rights(access_rights: cmd, bf, size, show_prefix: arg->show_string_prefix);
54}
55

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