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# sched_setaffinity __________________________________________
# long sys_sched_setaffinity(pid_t pid,
# unsigned int len,
# unsigned long __user *user_mask_ptr)
#
@define _SYSCALL_SCHED_SETAFFINITY_NAME
%(
name = "sched_setaffinity"
%)
@define _SYSCALL_SCHED_SETAFFINITY_ARGSTR
%(
argstr = sprintf("%d, %u, %p", pid, len, mask_uaddr)
%)
@define _SYSCALL_SCHED_SETAFFINITY_REGARGS
%(
pid = int_arg(1)
len = uint_arg(2)
mask_uaddr = pointer_arg(3)
%)
probe syscall.sched_setaffinity = dw_syscall.sched_setaffinity !,
nd_syscall.sched_setaffinity ? {}
probe syscall.sched_setaffinity.return = dw_syscall.sched_setaffinity.return !,
nd_syscall.sched_setaffinity.return ? {}
# dw_sched_setaffinity _____________________________________________________
probe dw_syscall.sched_setaffinity =
kernel.function("sys_sched_setaffinity").call ?,
kernel.function("compat_sys_sched_setaffinity").call ?
{
@_SYSCALL_SCHED_SETAFFINITY_NAME
pid = __int32($pid)
len = __uint32(@choose_defined($len, 0))
mask_uaddr = @__pointer($user_mask_ptr)
@_SYSCALL_SCHED_SETAFFINITY_ARGSTR
}
probe dw_syscall.sched_setaffinity.return =
kernel.function("sys_sched_setaffinity").return ?,
kernel.function("compat_sys_sched_setaffinity").return ?
{
@_SYSCALL_SCHED_SETAFFINITY_NAME
@SYSC_RETVALSTR($return)
}
# nd_sched_setaffinity _____________________________________________________
probe nd_syscall.sched_setaffinity = nd1_syscall.sched_setaffinity!, nd2_syscall.sched_setaffinity!, tp_syscall.sched_setaffinity
{ }
probe nd1_syscall.sched_setaffinity =
kprobe.function("sys_sched_setaffinity") ?,
kprobe.function("compat_sys_sched_setaffinity") ?
{
@_SYSCALL_SCHED_SETAFFINITY_NAME
asmlinkage()
@_SYSCALL_SCHED_SETAFFINITY_REGARGS
@_SYSCALL_SCHED_SETAFFINITY_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.sched_setaffinity =
kprobe.function(@arch_syscall_prefix "sys_sched_setaffinity") ?,
kprobe.function(@arch_syscall_prefix "compat_sys_sched_setaffinity") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_SCHED_SETAFFINITY_NAME
@_SYSCALL_SCHED_SETAFFINITY_REGARGS
@_SYSCALL_SCHED_SETAFFINITY_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_setaffinity = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_setaffinity"), @const("__NR_compat_sched_setaffinity"))
@_SYSCALL_SCHED_SETAFFINITY_NAME
@_SYSCALL_SCHED_SETAFFINITY_REGARGS
@_SYSCALL_SCHED_SETAFFINITY_ARGSTR
}
probe nd_syscall.sched_setaffinity.return = nd1_syscall.sched_setaffinity.return!, nd2_syscall.sched_setaffinity.return!, tp_syscall.sched_setaffinity.return
{ }
probe nd1_syscall.sched_setaffinity.return =
kprobe.function("sys_sched_setaffinity").return ?,
kprobe.function("compat_sys_sched_setaffinity").return ?
{
@_SYSCALL_SCHED_SETAFFINITY_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.sched_setaffinity.return =
kprobe.function(@arch_syscall_prefix "sys_sched_setaffinity").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_sched_setaffinity").return ?
{
@_SYSCALL_SCHED_SETAFFINITY_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_setaffinity.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_setaffinity"), @const("__NR_compat_sched_setaffinity"))
@_SYSCALL_SCHED_SETAFFINITY_NAME
@SYSC_RETVALSTR($ret)
}
|
