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|
# sched_setattr ______________________________________________
#
# SYSCALL_DEFINE3(sched_setattr, pid_t, pid, struct sched_attr __user *, uattr,
# unsigned int, flags)
#
@define _SYSCALL_SCHED_SETATTR_NAME
%(
name = "sched_setattr"
%)
@define _SYSCALL_SCHED_SETATTR_ARGSTR
%(
argstr = sprintf("%d, %s, %u", pid, sched_attr_str, flags)
%)
@define _SYSCALL_SCHED_SETATTR_REGARGS
%(
pid = int_arg(1)
sched_attr_uaddr = pointer_arg(2)
sched_attr_str = _struct_sched_attr_u(sched_attr_uaddr)
flags = uint_arg(3)
%)
@define _SYSCALL_SCHED_SETATTR_REGARGS_STORE
%(
if (@probewrite(pid))
set_int_arg(1, pid)
if (@probewrite(sched_attr_uaddr))
set_pointer_arg(2, sched_attr_uaddr)
if (@probewrite(flags))
set_uint_arg(3, flags)
%)
probe syscall.sched_setattr = dw_syscall.sched_setattr !, nd_syscall.sched_setattr ? {}
probe syscall.sched_setattr.return = dw_syscall.sched_setattr.return !,
nd_syscall.sched_setattr.return ? {}
# dw_sched_setattr _____________________________________________________
probe dw_syscall.sched_setattr = kernel.function("sys_sched_setattr") ?
{
@_SYSCALL_SCHED_SETATTR_NAME
pid = __int32($pid)
sched_attr_uaddr = $uattr
sched_attr_str = _struct_sched_attr_u(sched_attr_uaddr)
flags = __uint32($flags)
@_SYSCALL_SCHED_SETATTR_ARGSTR
}
probe dw_syscall.sched_setattr.return =
kernel.function("sys_sched_setattr").return ?
{
@_SYSCALL_SCHED_SETATTR_NAME
@SYSC_RETVALSTR($return)
}
# nd_sched_setattr _____________________________________________________
probe nd_syscall.sched_setattr = nd1_syscall.sched_setattr!, nd2_syscall.sched_setattr!, tp_syscall.sched_setattr
{ }
probe nd1_syscall.sched_setattr = kprobe.function("sys_sched_setattr") ?
{
@_SYSCALL_SCHED_SETATTR_NAME
asmlinkage()
@_SYSCALL_SCHED_SETATTR_REGARGS
@_SYSCALL_SCHED_SETATTR_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.sched_setattr = kprobe.function(@arch_syscall_prefix "sys_sched_setattr") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_SCHED_SETATTR_NAME
@_SYSCALL_SCHED_SETATTR_REGARGS
@_SYSCALL_SCHED_SETATTR_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_SCHED_SETATTR_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_setattr = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_setattr"), @const("__NR_compat_sched_setattr"))
@_SYSCALL_SCHED_SETATTR_NAME
@_SYSCALL_SCHED_SETATTR_REGARGS
@_SYSCALL_SCHED_SETATTR_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_SCHED_SETATTR_REGARGS_STORE %)
}
probe nd_syscall.sched_setattr.return = nd1_syscall.sched_setattr.return!, nd2_syscall.sched_setattr.return!, tp_syscall.sched_setattr.return
{ }
probe nd1_syscall.sched_setattr.return =
kprobe.function("sys_sched_setattr").return ?
{
@_SYSCALL_SCHED_SETATTR_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.sched_setattr.return = kprobe.function(@arch_syscall_prefix "sys_sched_setattr").return ?
{
@_SYSCALL_SCHED_SETATTR_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.sched_setattr.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_sched_setattr"), @const("__NR_compat_sched_setattr"))
@_SYSCALL_SCHED_SETATTR_NAME
@SYSC_RETVALSTR($ret)
}
|
