1*4882a593Smuzhiyun // SPDX-License-Identifier: LGPL-2.1
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * trace/beauty/cone.c
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include "trace/beauty/beauty.h"
9*4882a593Smuzhiyun #include <linux/kernel.h>
10*4882a593Smuzhiyun #include <sys/types.h>
11*4882a593Smuzhiyun #include <uapi/linux/sched.h>
12*4882a593Smuzhiyun
clone__scnprintf_flags(unsigned long flags,char * bf,size_t size,bool show_prefix)13*4882a593Smuzhiyun static size_t clone__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
14*4882a593Smuzhiyun {
15*4882a593Smuzhiyun const char *prefix = "CLONE_";
16*4882a593Smuzhiyun int printed = 0;
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #define P_FLAG(n) \
19*4882a593Smuzhiyun if (flags & CLONE_##n) { \
20*4882a593Smuzhiyun printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
21*4882a593Smuzhiyun flags &= ~CLONE_##n; \
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun P_FLAG(VM);
25*4882a593Smuzhiyun P_FLAG(FS);
26*4882a593Smuzhiyun P_FLAG(FILES);
27*4882a593Smuzhiyun P_FLAG(SIGHAND);
28*4882a593Smuzhiyun P_FLAG(PIDFD);
29*4882a593Smuzhiyun P_FLAG(PTRACE);
30*4882a593Smuzhiyun P_FLAG(VFORK);
31*4882a593Smuzhiyun P_FLAG(PARENT);
32*4882a593Smuzhiyun P_FLAG(THREAD);
33*4882a593Smuzhiyun P_FLAG(NEWNS);
34*4882a593Smuzhiyun P_FLAG(SYSVSEM);
35*4882a593Smuzhiyun P_FLAG(SETTLS);
36*4882a593Smuzhiyun P_FLAG(PARENT_SETTID);
37*4882a593Smuzhiyun P_FLAG(CHILD_CLEARTID);
38*4882a593Smuzhiyun P_FLAG(DETACHED);
39*4882a593Smuzhiyun P_FLAG(UNTRACED);
40*4882a593Smuzhiyun P_FLAG(CHILD_SETTID);
41*4882a593Smuzhiyun P_FLAG(NEWCGROUP);
42*4882a593Smuzhiyun P_FLAG(NEWUTS);
43*4882a593Smuzhiyun P_FLAG(NEWIPC);
44*4882a593Smuzhiyun P_FLAG(NEWUSER);
45*4882a593Smuzhiyun P_FLAG(NEWPID);
46*4882a593Smuzhiyun P_FLAG(NEWNET);
47*4882a593Smuzhiyun P_FLAG(IO);
48*4882a593Smuzhiyun P_FLAG(CLEAR_SIGHAND);
49*4882a593Smuzhiyun P_FLAG(INTO_CGROUP);
50*4882a593Smuzhiyun #undef P_FLAG
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun if (flags)
53*4882a593Smuzhiyun printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun return printed;
56*4882a593Smuzhiyun }
57*4882a593Smuzhiyun
syscall_arg__scnprintf_clone_flags(char * bf,size_t size,struct syscall_arg * arg)58*4882a593Smuzhiyun size_t syscall_arg__scnprintf_clone_flags(char *bf, size_t size, struct syscall_arg *arg)
59*4882a593Smuzhiyun {
60*4882a593Smuzhiyun unsigned long flags = arg->val;
61*4882a593Smuzhiyun enum syscall_clone_args {
62*4882a593Smuzhiyun SCC_FLAGS = (1 << 0),
63*4882a593Smuzhiyun SCC_CHILD_STACK = (1 << 1),
64*4882a593Smuzhiyun SCC_PARENT_TIDPTR = (1 << 2),
65*4882a593Smuzhiyun SCC_CHILD_TIDPTR = (1 << 3),
66*4882a593Smuzhiyun SCC_TLS = (1 << 4),
67*4882a593Smuzhiyun };
68*4882a593Smuzhiyun if (!(flags & CLONE_PARENT_SETTID))
69*4882a593Smuzhiyun arg->mask |= SCC_PARENT_TIDPTR;
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun if (!(flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)))
72*4882a593Smuzhiyun arg->mask |= SCC_CHILD_TIDPTR;
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun if (!(flags & CLONE_SETTLS))
75*4882a593Smuzhiyun arg->mask |= SCC_TLS;
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun return clone__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
78*4882a593Smuzhiyun }
79