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# inotify_init _______________________________________________
#
# long sys_inotify_init(void)
# SYSCALL_DEFINE1(inotify_init1, int, flags)
#

probe syscall.inotify_init = dw_syscall.inotify_init !,
                             nd_syscall.inotify_init ? {}
probe syscall.inotify_init.return = dw_syscall.inotify_init.return !,
                                    nd_syscall.inotify_init.return ? {}

# dw_inotify_init _____________________________________________________

probe dw_syscall.inotify_init = __syscall.inotify_init1 ?,
			     __syscall.inotify_init ?
{
}
probe __syscall.inotify_init1 = kernel.function("sys_inotify_init1").call ?
{
	@__syscall_compat_gate(@const("__NR_inotify_init1"),
			       @const("__NR_compat_inotify_init1"))
	name = "inotify_init1"
	flags = __int32($flags)
	argstr = _inotify_init1_flag_str(flags)
}
probe __syscall.inotify_init = kernel.function("sys_inotify_init").call ?
{
	name = "inotify_init"
	flags = 0
	argstr = ""
}
probe dw_syscall.inotify_init.return = __syscall.inotify_init1.return ?,
				    __syscall.inotify_init.return ?
{
}
probe __syscall.inotify_init1.return =
	kernel.function("sys_inotify_init1").return ?
{
	@__syscall_compat_gate(@const("__NR_inotify_init1"),
			       @const("__NR_compat_inotify_init1"))
	name = "inotify_init1"
	@SYSC_RETVALSTR($return)
}
probe __syscall.inotify_init.return =
	kernel.function("sys_inotify_init").return ?
{
	name = "inotify_init"
	@SYSC_RETVALSTR($return)
}

# nd_inotify_init _____________________________________________________

probe nd_syscall.inotify_init = nd1_syscall.inotify_init!, nd2_syscall.inotify_init!, tp_syscall.inotify_init
  { }

probe nd1_syscall.inotify_init = __nd1_syscall.inotify_init1 ?,
                                 __nd1_syscall.inotify_init ?
{
}
probe __nd1_syscall.inotify_init1 = kprobe.function("sys_inotify_init1")
{
	@__syscall_compat_gate(@const("__NR_inotify_init1"),
			       @const("__NR_compat_inotify_init1"))
	asmlinkage()
	name = "inotify_init1"
	flags = int_arg(1)
	argstr = _inotify_init1_flag_str(flags)
}
probe __nd1_syscall.inotify_init = kprobe.function("sys_inotify_init")
{
	name = "inotify_init"
	flags = 0
	argstr = ""
}

/* kernel 4.17+ */
probe nd2_syscall.inotify_init = __nd2_syscall.inotify_init1 ?,
                                 __nd2_syscall.inotify_init ?
{
}
probe __nd2_syscall.inotify_init1 =
	kprobe.function(@arch_syscall_prefix "sys_inotify_init1") ?
{
	__set_syscall_pt_regs(pointer_arg(1))
	name = "inotify_init1"
	flags = int_arg(1)
	argstr = _inotify_init1_flag_str(flags)
},
{
%( @_IS_SREG_KERNEL %?
	if (@probewrite(flags))
	  set_int_arg(1, flags)
%)
}
probe __nd2_syscall.inotify_init =
	kprobe.function(@arch_syscall0_prefix "sys_inotify_init") ?
{
	__set_syscall_pt_regs(pointer_arg(1))
	name = "inotify_init"
	flags = 0
	argstr = ""
}

/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.inotify_init = __tp_syscall.inotify_init1 ?,
                                __tp_syscall.inotify_init ?
{
}
probe __tp_syscall.inotify_init1 = kernel.trace("sys_enter")
{
	__set_syscall_pt_regs($regs)
	@__syscall_compat_gate(@const("__NR_inotify_init1"), 
			       @const("__NR_compat_inotify_init1"))
	name = "inotify_init1"
	flags = int_arg(1)
	argstr = _inotify_init1_flag_str(flags)
},
{
%( @_IS_SREG_KERNEL %?
	if (@probewrite(flags))
	  set_int_arg(1, flags)
%)
}
probe __tp_syscall.inotify_init = kernel.trace("sys_enter")
{
	__set_syscall_pt_regs($regs)
	@__syscall_compat_gate(@const("__NR_inotify_init"),
			       @const("__NR_compat_inotify_init"))
	name = "inotify_init"
	flags = 0
	argstr = ""
}

probe nd_syscall.inotify_init.return = nd1_syscall.inotify_init.return!, nd2_syscall.inotify_init.return!, tp_syscall.inotify_init.return
  { }
  
probe nd1_syscall.inotify_init.return = __nd1_syscall.inotify_init1.return ?,
                                        __nd1_syscall.inotify_init.return ?
{
}
probe __nd1_syscall.inotify_init1.return =
	kprobe.function("sys_inotify_init1").return
{
	@__syscall_compat_gate(@const("__NR_inotify_init1"),
			       @const("__NR_compat_inotify_init1"))
	name = "inotify_init1"
	@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.inotify_init.return =
	kprobe.function("sys_inotify_init").return
{
	name = "inotify_init"
	@SYSC_RETVALSTR(returnval())
}

/* kernel 4.17+ */
probe nd2_syscall.inotify_init.return = __nd2_syscall.inotify_init1.return ?,
                                        __nd2_syscall.inotify_init.return ?
{
}
probe __nd2_syscall.inotify_init1.return =
	kprobe.function(@arch_syscall_prefix "sys_inotify_init1").return ?
{
	name = "inotify_init1"
	@SYSC_RETVALSTR(returnval())
}
probe __nd2_syscall.inotify_init.return = 
	kprobe.function(@arch_syscall0_prefix "sys_inotify_init").return ?
{
	name = "inotify_init"
	@SYSC_RETVALSTR(returnval())
}
 
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.inotify_init.return = __tp_syscall.inotify_init1.return ?,
                                       __tp_syscall.inotify_init.return ?
{
}
probe __tp_syscall.inotify_init1.return = kernel.trace("sys_exit")
{
	__set_syscall_pt_regs($regs)
	@__syscall_compat_gate(@const("__NR_inotify_init1"), 
			       @const("__NR_compat_inotify_init1"))
	name = "inotify_init1"
	@SYSC_RETVALSTR($ret)
}
probe __tp_syscall.inotify_init.return = kernel.trace("sys_exit")
{
	__set_syscall_pt_regs($regs)
	@__syscall_compat_gate(@const("__NR_inotify_init"),
			       @const("__NR_compat_inotify_init"))
	name = "inotify_init"
	@SYSC_RETVALSTR($ret)
}