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|
# waitid _____________________________________________________
#
# long sys_waitid(int which,
# pid_t pid,
# struct siginfo __user *infop,
# int options,
# struct rusage __user *ru)
# COMPAT_SYSCALL_DEFINE5(waitid,
# int, which, compat_pid_t, pid,
# struct compat_siginfo __user *, uinfo, int, options,
# struct compat_rusage __user *, uru)
#
@define _SYSCALL_WAITID_NAME
%(
name = "waitid"
%)
@define _SYSCALL_WAITID_ARGSTR
%(
argstr = sprintf("%s, %d, %p, %s, %p", which_str, pid, infop_uaddr,
options_str, rusage_uaddr)
%)
@define _SYSCALL_WAITID_REGARGS
%(
which = int_arg(1)
which_str = _waitid_which_str(which)
pid = int_arg(2)
infop_uaddr = pointer_arg(3)
options = int_arg(4)
options_str = _wait4_opt_str(options)
rusage_uaddr = pointer_arg(5)
%)
probe syscall.waitid = dw_syscall.waitid !, nd_syscall.waitid ? {}
probe syscall.waitid.return = dw_syscall.waitid.return !,
nd_syscall.waitid.return ? {}
# dw_waitid _____________________________________________________
probe dw_syscall.waitid = __syscall.waitid,
kernel.function("compat_sys_waitid").call ?
{
@_SYSCALL_WAITID_NAME
which = __int32($which)
which_str = _waitid_which_str(__int32($which))
pid = __int32(@choose_defined($upid, $pid))
infop_uaddr = @__pointer(@choose_defined($infop, $uinfo))
options = $options
options_str = _wait4_opt_str($options)
rusage_uaddr = @choose_defined($ru, $uru)
@_SYSCALL_WAITID_ARGSTR
}
probe __syscall.waitid = kernel.function("sys_waitid").call
{
@__syscall_gate_compat_simple
}
probe dw_syscall.waitid.return = __syscall.waitid.return,
kernel.function("compat_sys_waitid").return ?
{
@_SYSCALL_WAITID_NAME
@SYSC_RETVALSTR($return)
}
probe __syscall.waitid.return = kernel.function("sys_waitid").return
{
@__syscall_gate_compat_simple
}
# nd_waitid _____________________________________________________
probe nd_syscall.waitid = nd1_syscall.waitid!, nd2_syscall.waitid!, tp_syscall.waitid
{ }
probe nd1_syscall.waitid = __nd1_syscall.waitid,
kprobe.function("compat_sys_waitid") ?
{
@_SYSCALL_WAITID_NAME
asmlinkage()
@_SYSCALL_WAITID_REGARGS
@_SYSCALL_WAITID_ARGSTR
}
probe __nd1_syscall.waitid = kprobe.function("sys_waitid")
{
@__syscall_gate_compat_simple
}
/* kernel 4.17+ */
probe nd2_syscall.waitid =
kprobe.function(@arch_syscall_prefix "sys_waitid") ?,
kprobe.function(@arch_syscall_prefix "compat_sys_waitid") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_WAITID_NAME
@_SYSCALL_WAITID_REGARGS
@_SYSCALL_WAITID_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.waitid = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_waitid"), @const("__NR_compat_waitid"))
@_SYSCALL_WAITID_NAME
@_SYSCALL_WAITID_REGARGS
@_SYSCALL_WAITID_ARGSTR
}
probe nd_syscall.waitid.return = nd1_syscall.waitid.return!, nd2_syscall.waitid.return!, tp_syscall.waitid.return
{ }
probe nd1_syscall.waitid.return = __nd1_syscall.waitid.return,
kprobe.function("compat_sys_waitid").return ?
{
@_SYSCALL_WAITID_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.waitid.return = kprobe.function("sys_waitid").return
{
@__syscall_gate_compat_simple
}
/* kernel 4.17+ */
probe nd2_syscall.waitid.return =
kprobe.function(@arch_syscall_prefix "sys_waitid").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_waitid").return ?
{
@_SYSCALL_WAITID_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.waitid.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_waitid"), @const("__NR_compat_waitid"))
@_SYSCALL_WAITID_NAME
@SYSC_RETVALSTR($ret)
}
|
