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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
# sched_get_priority_max _____________________________________
#
# asmlinkage long
# sys_sched_get_priority_max(int policy)
#
@define _SYSCALL_SCHED_GET_PRIORITY_MAX_NAME
%(
name = "sched_get_priority_max"
%)
@define _SYSCALL_SCHED_GET_PRIORITY_MAX_ARGSTR
%(
argstr = policy_str
%)
@define _SYSCALL_SCHED_GET_PRIORITY_MAX_REGARGS
%(
policy = int_arg(1)
policy_str = _sched_policy_str(policy)
%)
@define _SYSCALL_SCHED_GET_PRIORITY_MAX_REGARGS_STORE
%(
if (@probewrite(policy))
set_int_arg(1, policy)
%)
probe syscall.sched_get_priority_max = dw_syscall.sched_get_priority_max !,
nd_syscall.sched_get_priority_max ? {}
probe syscall.sched_get_priority_max.return = dw_syscall.sched_get_priority_max.return !,
nd_syscall.sched_get_priority_max.return ? {}
# dw_sched_get_priority_max _____________________________________________________
probe dw_syscall.sched_get_priority_max = kernel.function("sys_sched_get_priority_max").call
{
@_SYSCALL_SCHED_GET_PRIORITY_MAX_NAME
policy = __int32($policy)
policy_str = _sched_policy_str(policy)
@_SYSCALL_SCHED_GET_PRIORITY_MAX_ARGSTR
}
probe dw_syscall.sched_get_priority_max.return = kernel.function("sys_sched_get_priority_max").return
{
@_SYSCALL_SCHED_GET_PRIORITY_MAX_NAME
@SYSC_RETVALSTR($return)
}
# nd_sched_get_priority_max _____________________________________________________
probe nd_syscall.sched_get_priority_max = nd1_syscall.sched_get_priority_max!, nd2_syscall.sched_get_priority_max!, tp_syscall.sched_get_priority_max
{ }
probe nd1_syscall.sched_get_priority_max = kprobe.function("sys_sched_get_priority_max") ?
{
@_SYSCALL_SCHED_GET_PRIORITY_MAX_NAME
asmlinkage()
@_SYSCALL_SCHED_GET_PRIORITY_MAX_REGARGS
@_SYSCALL_SCHED_GET_PRIORITY_MAX_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.sched_get_priority_max = kprobe.function(@arch_syscall_prefix "sys_sched_get_priority_max") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_SCHED_GET_PRIORITY_MAX_NAME
@_SYSCALL_SCHED_GET_PRIORITY_MAX_REGARGS
@_SYSCALL_SCHED_GET_PRIORITY_MAX_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_SCHED_GET_PRIORITY_MAX_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_get_priority_max = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_get_priority_max"), @const("__NR_compat_sched_get_priority_max"))
@_SYSCALL_SCHED_GET_PRIORITY_MAX_NAME
@_SYSCALL_SCHED_GET_PRIORITY_MAX_REGARGS
@_SYSCALL_SCHED_GET_PRIORITY_MAX_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_SCHED_GET_PRIORITY_MAX_REGARGS_STORE %)
}
probe nd_syscall.sched_get_priority_max.return = nd1_syscall.sched_get_priority_max.return!, nd2_syscall.sched_get_priority_max.return!, tp_syscall.sched_get_priority_max.return
{ }
probe nd1_syscall.sched_get_priority_max.return = kprobe.function("sys_sched_get_priority_max").return ?
{
@_SYSCALL_SCHED_GET_PRIORITY_MAX_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.sched_get_priority_max.return = kprobe.function(@arch_syscall_prefix "sys_sched_get_priority_max").return ?
{
@_SYSCALL_SCHED_GET_PRIORITY_MAX_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_get_priority_max.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_get_priority_max"), @const("__NR_compat_sched_get_priority_max"))
@_SYSCALL_SCHED_GET_PRIORITY_MAX_NAME
@SYSC_RETVALSTR($ret)
}
|
