1 // SPDX-License-Identifier: LGPL-2.1
2 /*
3 * trace/beauty/cone.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 #include <sys/types.h>
12 #include <sched.h>
13
14 static size_t clone__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
15 {
16 #include "trace/beauty/generated/clone_flags_array.c"
17 static DEFINE_STRARRAY(clone_flags, "CLONE_");
18
19 return strarray__scnprintf_flags(&strarray__clone_flags, bf, size, show_prefix, flags);
20 }
21
22 size_t syscall_arg__scnprintf_clone_flags(char *bf, size_t size, struct syscall_arg *arg)
23 {
24 unsigned long flags = arg->val;
25 enum syscall_clone_args {
26 SCC_FLAGS = (1 << 0),
27 SCC_CHILD_STACK = (1 << 1),
28 SCC_PARENT_TIDPTR = (1 << 2),
29 SCC_CHILD_TIDPTR = (1 << 3),
30 SCC_TLS = (1 << 4),
31 };
32 if (!(flags & CLONE_PARENT_SETTID))
33 arg->mask |= SCC_PARENT_TIDPTR;
34
35 if (!(flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)))
36 arg->mask |= SCC_CHILD_TIDPTR;
37
38 if (!(flags & CLONE_SETTLS))
39 arg->mask |= SCC_TLS;
40
41 return clone__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
42 }
43
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