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|
# timerfd_create _____________________________________________
#
# SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
@define _SYSCALL_TIMERFD_CREATE_NAME
%(
name = "timerfd_create"
%)
@define _SYSCALL_TIMERFD_CREATE_ARGSTR
%(
argstr = sprintf("%s, %s", clockid_str, flags_str)
%)
@define _SYSCALL_TIMERFD_CREATE_REGARGS
%(
clockid = int_arg(1)
clockid_str = _get_wc_str(clockid)
flags = int_arg(2)
flags_str = _stp_timerfd_flags_str(flags)
%)
@define _SYSCALL_TIMERFD_CREATE_REGARGS_STORE
%(
if (@probewrite(clockid))
set_int_arg(1, clockid)
if (@probewrite(flags))
set_int_arg(2, flags)
%)
probe syscall.timerfd_create = dw_syscall.timerfd_create !,
nd_syscall.timerfd_create ? {}
probe syscall.timerfd_create.return = dw_syscall.timerfd_create.return !,
nd_syscall.timerfd_create.return ? {}
# dw_timerfd_create _____________________________________________________
probe dw_syscall.timerfd_create = kernel.function("sys_timerfd_create").call ?
{
@_SYSCALL_TIMERFD_CREATE_NAME
clockid = __int32($clockid)
clockid_str = _get_wc_str(clockid)
flags = __int32($flags)
flags_str = _stp_timerfd_flags_str(flags)
@_SYSCALL_TIMERFD_CREATE_ARGSTR
}
probe dw_syscall.timerfd_create.return =
kernel.function("sys_timerfd_create").return ?
{
@_SYSCALL_TIMERFD_CREATE_NAME
@SYSC_RETVALSTR($return)
}
# nd_timerfd_create _____________________________________________________
probe nd_syscall.timerfd_create = nd1_syscall.timerfd_create!, nd2_syscall.timerfd_create!, tp_syscall.timerfd_create
{ }
probe nd1_syscall.timerfd_create = kprobe.function("sys_timerfd_create").call ?
{
@_SYSCALL_TIMERFD_CREATE_NAME
asmlinkage()
@_SYSCALL_TIMERFD_CREATE_REGARGS
@_SYSCALL_TIMERFD_CREATE_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.timerfd_create = kprobe.function(@arch_syscall_prefix "sys_timerfd_create") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_TIMERFD_CREATE_NAME
@_SYSCALL_TIMERFD_CREATE_REGARGS
@_SYSCALL_TIMERFD_CREATE_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_TIMERFD_CREATE_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.timerfd_create = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_timerfd_create"), @const("__NR_compat_timerfd_create"))
@_SYSCALL_TIMERFD_CREATE_NAME
@_SYSCALL_TIMERFD_CREATE_REGARGS
@_SYSCALL_TIMERFD_CREATE_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_TIMERFD_CREATE_REGARGS_STORE %)
}
probe nd_syscall.timerfd_create.return = nd1_syscall.timerfd_create.return!, nd2_syscall.timerfd_create.return!, tp_syscall.timerfd_create.return
{ }
probe nd1_syscall.timerfd_create.return =
kprobe.function("sys_timerfd_create").return ?
{
@_SYSCALL_TIMERFD_CREATE_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.timerfd_create.return =
kprobe.function(@arch_syscall_prefix "sys_timerfd_create").return ?
{
@_SYSCALL_TIMERFD_CREATE_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.timerfd_create.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_timerfd_create"), @const("__NR_compat_timerfd_create"))
@_SYSCALL_TIMERFD_CREATE_NAME
@SYSC_RETVALSTR($ret)
}
|
