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# sched_setscheduler _________________________________________
#
# long sys_sched_setscheduler(pid_t pid, int policy, struct sched_param __user *param)
#
@define _SYSCALL_SCHED_SETSCHEDULER_NAME
%(
name = "sched_setscheduler"
%)
@define _SYSCALL_SCHED_SETSCHEDULER_ARGSTR
%(
argstr = sprintf("%d, %s, %p", pid, policy_str, p_uaddr)
%)
@define _SYSCALL_SCHED_SETSCHEDULER_REGARGS
%(
pid = int_arg(1)
policy = int_arg(2)
policy_str = _sched_policy_str(policy)
p_uaddr = pointer_arg(3)
%)
@define _SYSCALL_SCHED_SETSCHEDULER_REGARGS_STORE
%(
if (@probewrite(pid))
set_int_arg(1, pid)
if (@probewrite(policy))
set_int_arg(2, policy)
if (@probewrite(p_uaddr))
set_pointer_arg(3, p_uaddr)
%)
probe syscall.sched_setscheduler = dw_syscall.sched_setscheduler !,
nd_syscall.sched_setscheduler ? {}
probe syscall.sched_setscheduler.return = dw_syscall.sched_setscheduler.return !,
nd_syscall.sched_setscheduler.return ? {}
# dw_sched_setscheduler _____________________________________________________
probe dw_syscall.sched_setscheduler = kernel.function("sys_sched_setscheduler").call ?
{
@_SYSCALL_SCHED_SETSCHEDULER_NAME
pid = __int32($pid)
policy = __int32($policy)
policy_str = _sched_policy_str(policy)
p_uaddr = $param
@_SYSCALL_SCHED_SETSCHEDULER_ARGSTR
}
probe dw_syscall.sched_setscheduler.return = kernel.function("sys_sched_setscheduler").return ?
{
@_SYSCALL_SCHED_SETSCHEDULER_NAME
@SYSC_RETVALSTR($return)
}
# nd_sched_setscheduler _____________________________________________________
probe nd_syscall.sched_setscheduler = nd1_syscall.sched_setscheduler!, nd2_syscall.sched_setscheduler!, tp_syscall.sched_setscheduler
{ }
probe nd1_syscall.sched_setscheduler = kprobe.function("sys_sched_setscheduler") ?
{
@_SYSCALL_SCHED_SETSCHEDULER_NAME
asmlinkage()
@_SYSCALL_SCHED_SETSCHEDULER_REGARGS
@_SYSCALL_SCHED_SETSCHEDULER_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.sched_setscheduler = kprobe.function(@arch_syscall_prefix "sys_sched_setscheduler") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_SCHED_SETSCHEDULER_NAME
@_SYSCALL_SCHED_SETSCHEDULER_REGARGS
@_SYSCALL_SCHED_SETSCHEDULER_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_SCHED_SETSCHEDULER_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_setscheduler = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_setscheduler"), @const("__NR_compat_sched_setscheduler"))
@_SYSCALL_SCHED_SETSCHEDULER_NAME
@_SYSCALL_SCHED_SETSCHEDULER_REGARGS
@_SYSCALL_SCHED_SETSCHEDULER_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_SCHED_SETSCHEDULER_REGARGS_STORE %)
}
probe nd_syscall.sched_setscheduler.return = nd1_syscall.sched_setscheduler.return!, nd2_syscall.sched_setscheduler.return!, tp_syscall.sched_setscheduler.return
{ }
probe nd1_syscall.sched_setscheduler.return = kprobe.function("sys_sched_setscheduler").return ?
{
@_SYSCALL_SCHED_SETSCHEDULER_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.sched_setscheduler.return = kprobe.function(@arch_syscall_prefix "sys_sched_setscheduler").return ?
{
@_SYSCALL_SCHED_SETSCHEDULER_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_setscheduler.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_setscheduler"), @const("__NR_compat_sched_setscheduler"))
@_SYSCALL_SCHED_SETSCHEDULER_NAME
@SYSC_RETVALSTR($ret)
}
|
