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# sched_getaffinity __________________________________________
#
# asmlinkage long
# sys_sched_getaffinity(pid_t pid,
# unsigned int len,
# unsigned long __user *user_mask_ptr)
# COMPAT_SYSCALL_DEFINE3(sched_getaffinity, compat_pid_t, pid,
# unsigned int, len,
# compat_ulong_t __user *, user_mask_ptr)
#
@define _SYSCALL_SCHED_GETAFFINITY_NAME
%(
name = "sched_getaffinity"
%)
@define _SYSCALL_SCHED_GETAFFINITY_ARGSTR
%(
argstr = sprintf("%d, %u, %p", pid, len, mask_uaddr)
%)
@define _SYSCALL_SCHED_GETAFFINITY_REGARGS
%(
pid = int_arg(1)
len = uint_arg(2)
mask_uaddr = pointer_arg(3)
%)
probe syscall.sched_getaffinity = dw_syscall.sched_getaffinity !,
nd_syscall.sched_getaffinity ? {}
probe syscall.sched_getaffinity.return = dw_syscall.sched_getaffinity.return !,
nd_syscall.sched_getaffinity.return ? {}
# dw_sched_getaffinity _____________________________________________________
probe dw_syscall.sched_getaffinity =
kernel.function("sys_sched_getaffinity").call ?,
kernel.function("compat_sys_sched_getaffinity").call ?
{
@_SYSCALL_SCHED_GETAFFINITY_NAME
pid = __int32($pid)
len = __uint32($len)
mask_uaddr = @__pointer($user_mask_ptr)
@_SYSCALL_SCHED_GETAFFINITY_ARGSTR
}
probe dw_syscall.sched_getaffinity.return =
kernel.function("sys_sched_getaffinity").return ?,
kernel.function("compat_sys_sched_getaffinity").return ?
{
@_SYSCALL_SCHED_GETAFFINITY_NAME
@SYSC_RETVALSTR($return)
}
# nd_sched_getaffinity _____________________________________________________
probe nd_syscall.sched_getaffinity = nd1_syscall.sched_getaffinity!, nd2_syscall.sched_getaffinity!, tp_syscall.sched_getaffinity
{ }
probe nd1_syscall.sched_getaffinity =
kprobe.function("sys_sched_getaffinity") ?,
kprobe.function("compat_sys_sched_getaffinity") ?
{
@_SYSCALL_SCHED_GETAFFINITY_NAME
asmlinkage()
@_SYSCALL_SCHED_GETAFFINITY_REGARGS
@_SYSCALL_SCHED_GETAFFINITY_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.sched_getaffinity =
kprobe.function(@arch_syscall_prefix "sys_sched_getaffinity") ?,
kprobe.function(@arch_syscall_prefix "compat_sys_sched_getaffinity") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_SCHED_GETAFFINITY_NAME
@_SYSCALL_SCHED_GETAFFINITY_REGARGS
@_SYSCALL_SCHED_GETAFFINITY_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_getaffinity = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_getaffinity"), @const("__NR_compat_sched_getaffinity"))
@_SYSCALL_SCHED_GETAFFINITY_NAME
@_SYSCALL_SCHED_GETAFFINITY_REGARGS
@_SYSCALL_SCHED_GETAFFINITY_ARGSTR
}
probe nd_syscall.sched_getaffinity.return = nd1_syscall.sched_getaffinity.return!, nd2_syscall.sched_getaffinity.return!, tp_syscall.sched_getaffinity.return
{ }
probe nd1_syscall.sched_getaffinity.return =
kprobe.function("sys_sched_getaffinity").return ?,
kprobe.function("compat_sys_sched_getaffinity").return ?
{
@_SYSCALL_SCHED_GETAFFINITY_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.sched_getaffinity.return =
kprobe.function(@arch_syscall_prefix "sys_sched_getaffinity").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_sched_getaffinity").return ?
{
@_SYSCALL_SCHED_GETAFFINITY_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_getaffinity.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_getaffinity"), @const("__NR_compat_sched_getaffinity"))
@_SYSCALL_SCHED_GETAFFINITY_NAME
@SYSC_RETVALSTR($ret)
}
|
