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# io_submit __________________________________________________
# long compat_sys_io_submit(aio_context_t ctx_id, int nr, u32 __user *iocb)
# long sys_io_submit(aio_context_t ctx_id, long nr, struct iocb __user * __user *iocbpp)
#
@define _SYSCALL_IO_SUBMIT_NAME
%(
name = "io_submit"
%)
@define _SYSCALL_IO_SUBMIT_ARGSTR
%(
argstr = sprintf("%u, %d, %p", ctx_id, nr, iocbpp_uaddr)
%)
@define _SYSCALL_IO_SUBMIT_REGARGS
%(
ctx_id = ulong_arg(1)
nr = @__compat_task ? int_arg(2) : long_arg(2)
iocbpp_uaddr = pointer_arg(3)
%)
@define _SYSCALL_IO_SUBMIT_REGARGS_STORE
%(
if (@probewrite(ctx_id))
set_ulong_arg(1, ctx_id)
if (@probewrite(nr)) {
if (@__compat_task)
set_int_arg(2, nr)
else
set_long_arg(2, nr)
}
if (@probewrite(iocbpp_uaddr))
set_pointer_arg(3, iocbpp_uaddr)
%)
probe syscall.io_submit = dw_syscall.io_submit !, nd_syscall.io_submit ? {}
probe syscall.io_submit.return = dw_syscall.io_submit.return !, nd_syscall.io_submit.return ? {}
# dw_io_submit _____________________________________________________
probe dw_syscall.io_submit = __syscall.io_submit,
kernel.function("compat_sys_io_submit").call ?
{
@_SYSCALL_IO_SUBMIT_NAME
ctx_id = @__compat_ulong($ctx_id)
nr = @__compat_long($nr)
iocbpp_uaddr = @choose_defined($iocbpp, $iocb)
@_SYSCALL_IO_SUBMIT_ARGSTR
}
probe __syscall.io_submit = kernel.function("sys_io_submit").call
{
@__syscall_gate(@const("__NR_io_submit"))
}
probe dw_syscall.io_submit.return = __syscall.io_submit.return,
kernel.function("compat_sys_io_submit").return ?
{
@_SYSCALL_IO_SUBMIT_NAME
@SYSC_RETVALSTR($return)
}
probe __syscall.io_submit.return = kernel.function("sys_io_submit").return
{
@__syscall_gate(@const("__NR_io_submit"))
}
# nd_io_submit _____________________________________________________
probe nd_syscall.io_submit = nd1_syscall.io_submit!, nd2_syscall.io_submit!, tp_syscall.io_submit
{ }
probe nd1_syscall.io_submit = __nd1_syscall.io_submit,
kprobe.function("compat_sys_io_submit") ?
{
@_SYSCALL_IO_SUBMIT_NAME
asmlinkage()
@_SYSCALL_IO_SUBMIT_REGARGS
@_SYSCALL_IO_SUBMIT_ARGSTR
}
probe __nd1_syscall.io_submit = kprobe.function("sys_io_submit") ?
{
@__syscall_gate(@const("__NR_io_submit"))
}
/* kernel 4.17+ */
probe nd2_syscall.io_submit = kprobe.function(@arch_syscall_prefix "sys_io_submit") ?,
kprobe.function(@arch_syscall_prefix "compat_sys_io_submit") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_IO_SUBMIT_NAME
@_SYSCALL_IO_SUBMIT_REGARGS
@_SYSCALL_IO_SUBMIT_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_IO_SUBMIT_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.io_submit = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_io_submit"), @const("__NR_compat_io_submit"))
@_SYSCALL_IO_SUBMIT_NAME
@_SYSCALL_IO_SUBMIT_REGARGS
@_SYSCALL_IO_SUBMIT_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_IO_SUBMIT_REGARGS_STORE %)
}
probe nd_syscall.io_submit.return = nd1_syscall.io_submit.return!, nd2_syscall.io_submit.return!, tp_syscall.io_submit.return
{ }
probe nd1_syscall.io_submit.return = __nd1_syscall.io_submit.return,
kprobe.function("compat_sys_io_submit").return ?
{
@_SYSCALL_IO_SUBMIT_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.io_submit.return = kprobe.function("sys_io_submit").return ?
{
@__syscall_gate(@const("__NR_io_submit"))
}
/* kernel 4.17+ */
probe nd2_syscall.io_submit.return = kprobe.function(@arch_syscall_prefix "sys_io_submit").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_io_submit").return ?
{
@_SYSCALL_IO_SUBMIT_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.io_submit.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_io_submit"), @const("__NR_compat_io_submit"))
@_SYSCALL_IO_SUBMIT_NAME
@SYSC_RETVALSTR($ret)
}
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