1 // SPDX-License-Identifier: LGPL-2.1
5 * Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
8 #include "trace/beauty/beauty.h"
9 #include <linux/kernel.h>
10 #include <sys/types.h>
11 #include <uapi/linux/sched.h>
13 static size_t clone__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
15 const char *prefix = "CLONE_";
19 if (flags & CLONE_##n) { \
20 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
21 flags &= ~CLONE_##n; \
36 P_FLAG(PARENT_SETTID);
37 P_FLAG(CHILD_CLEARTID);
48 P_FLAG(CLEAR_SIGHAND);
53 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
58 size_t syscall_arg__scnprintf_clone_flags(char *bf, size_t size, struct syscall_arg *arg)
60 unsigned long flags = arg->val;
61 enum syscall_clone_args {
63 SCC_CHILD_STACK = (1 << 1),
64 SCC_PARENT_TIDPTR = (1 << 2),
65 SCC_CHILD_TIDPTR = (1 << 3),
68 if (!(flags & CLONE_PARENT_SETTID))
69 arg->mask |= SCC_PARENT_TIDPTR;
71 if (!(flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)))
72 arg->mask |= SCC_CHILD_TIDPTR;
74 if (!(flags & CLONE_SETTLS))
77 return clone__scnprintf_flags(flags, bf, size, arg->show_string_prefix);