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
|
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/cone.c
*
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*/
#include "trace/beauty/beauty.h"
#include <linux/kernel.h>
#include <linux/log2.h>
#include <sys/types.h>
#include <sched.h>
static size_t clone__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
{
#include "trace/beauty/generated/clone_flags_array.c"
static DEFINE_STRARRAY(clone_flags, "CLONE_");
return strarray__scnprintf_flags(&strarray__clone_flags, bf, size, show_prefix, flags);
}
size_t syscall_arg__scnprintf_clone_flags(char *bf, size_t size, struct syscall_arg *arg)
{
unsigned long flags = arg->val;
enum syscall_clone_args {
SCC_FLAGS = (1 << 0),
SCC_CHILD_STACK = (1 << 1),
SCC_PARENT_TIDPTR = (1 << 2),
SCC_CHILD_TIDPTR = (1 << 3),
SCC_TLS = (1 << 4),
};
if (!(flags & CLONE_PARENT_SETTID))
arg->mask |= SCC_PARENT_TIDPTR;
if (!(flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)))
arg->mask |= SCC_CHILD_TIDPTR;
if (!(flags & CLONE_SETTLS))
arg->mask |= SCC_TLS;
return clone__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
}
|
