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# io_cancel __________________________________________________
# long sys_io_cancel(aio_context_t ctx_id,
# struct iocb __user *iocb,
# struct io_event __user *result)
@define _SYSCALL_IO_CANCEL_NAME
%(
name = "io_cancel"
%)
@define _SYSCALL_IO_CANCEL_ARGSTR
%(
argstr = sprintf("%u, %p, %p", ctx_id, iocb_uaddr, result_uaddr)
%)
@define _SYSCALL_IO_CANCEL_REGARGS
%(
ctx_id = ulong_arg(1)
iocb_uaddr = pointer_arg(2)
result_uaddr = pointer_arg(3)
%)
@define _SYSCALL_IO_CANCEL_REGARGS_STORE
%(
if (@probewrite(ctx_id))
set_ulong_arg(1, ctx_id)
if (@probewrite(iocb_uaddr))
set_pointer_arg(2, iocb_uaddr)
if (@probewrite(result_uaddr))
set_pointer_arg(3, result_uaddr)
%)
probe syscall.io_cancel = dw_syscall.io_cancel !, nd_syscall.io_cancel ? {}
probe syscall.io_cancel.return = dw_syscall.io_cancel.return !, nd_syscall.io_cancel.return ? {}
# dw_io_cancel __________________________________________________
# long sys_io_cancel(aio_context_t ctx_id,
# struct iocb __user *iocb,
# struct io_event __user *result)
probe dw_syscall.io_cancel = kernel.function("sys_io_cancel").call
{
@_SYSCALL_IO_CANCEL_NAME
ctx_id = @__compat_ulong($ctx_id)
iocb_uaddr = $iocb
result_uaddr = $result
@_SYSCALL_IO_CANCEL_ARGSTR
}
probe dw_syscall.io_cancel.return = kernel.function("sys_io_cancel").return
{
@_SYSCALL_IO_CANCEL_NAME
@SYSC_RETVALSTR($return)
}
# nd_io_cancel __________________________________________________
# long sys_io_cancel(aio_context_t ctx_id,
# struct iocb __user *iocb,
# struct io_event __user *result)
#
#
probe nd_syscall.io_cancel = nd1_syscall.io_cancel!, nd2_syscall.io_cancel!, tp_syscall.io_cancel
{ }
probe nd1_syscall.io_cancel = kprobe.function("sys_io_cancel") ?
{
@_SYSCALL_IO_CANCEL_NAME
asmlinkage()
@_SYSCALL_IO_CANCEL_REGARGS
@_SYSCALL_IO_CANCEL_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.io_cancel = kprobe.function(@arch_syscall_prefix "sys_io_cancel")
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_IO_CANCEL_NAME
@_SYSCALL_IO_CANCEL_REGARGS
@_SYSCALL_IO_CANCEL_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_IO_CANCEL_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.io_cancel = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_io_cancel"), @const("__NR_compat_io_cancel"))
@_SYSCALL_IO_CANCEL_NAME
@_SYSCALL_IO_CANCEL_REGARGS
@_SYSCALL_IO_CANCEL_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_IO_CANCEL_REGARGS_STORE %)
}
probe nd_syscall.io_cancel.return = nd1_syscall.io_cancel.return!, nd2_syscall.io_cancel.return!, tp_syscall.io_cancel.return
{ }
probe nd1_syscall.io_cancel.return = kprobe.function("sys_io_cancel").return ?
{
@_SYSCALL_IO_CANCEL_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.io_cancel.return = kprobe.function(@arch_syscall_prefix "sys_io_cancel").return
{
@_SYSCALL_IO_CANCEL_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.io_cancel.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_io_cancel"), @const("__NR_compat_io_cancel"))
@_SYSCALL_IO_CANCEL_NAME
@SYSC_RETVALSTR($ret)
}
|
