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# rt_sigtimedwait ____________________________________________
#
# long sys_rt_sigtimedwait(const sigset_t __user *uthese,
# siginfo_t __user *uinfo,
# const struct timespec __user *uts,
# size_t sigsetsize)
# long compat_sys_rt_sigtimedwait (compat_sigset_t __user *uthese,
# struct compat_siginfo __user *uinfo,
# struct compat_timespec __user *uts, compat_size_t sigsetsize)
#
@define _SYSCALL_RT_SIGTIMEDWAIT_NAME
%(
name = "rt_sigtimedwait"
%)
@define _SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
%(
argstr = sprintf("%s, %s, %s, %d", uthese_str, uinfo_str, uts_str, sigsetsize)
%)
@define _SYSCALL_RT_SIGTIMEDWAIT_REGARGS
%(
uthese_uaddr = pointer_arg(1)
uinfo_uaddr = pointer_arg(2)
uts_uaddr = pointer_arg(3)
if (@__compat_task) {
uthese_str = _stp_compat_sigset_u(uthese_uaddr)
uinfo_str = _stp_compat_siginfo_u(uinfo_uaddr)
uts_str = _struct_compat_timespec_u(uts_uaddr, 1)
} else {
uthese_str = _stp_sigset_u(uthese_uaddr)
uinfo_str = _stp_siginfo_u(uinfo_uaddr)
uts_str = _struct_timespec_u(uts_uaddr, 1)
}
%)
@define _SYSCALL_RT_SIGTIMEDWAIT_REGARGS_STORE
%(
if (@probewrite(uthese_uaddr))
set_pointer_arg(1, uthese_uaddr)
if (@probewrite(uinfo_uaddr))
set_pointer_arg(2, uinfo_uaddr)
if (@probewrite(uts_uaddr))
set_pointer_arg(3, uts_uaddr)
%)
probe syscall.rt_sigtimedwait = dw_syscall.rt_sigtimedwait !,
nd_syscall.rt_sigtimedwait ? {}
probe syscall.rt_sigtimedwait.return = dw_syscall.rt_sigtimedwait.return !,
nd_syscall.rt_sigtimedwait.return ? {}
# dw_rt_sigtimedwait _____________________________________________________
probe dw_syscall.rt_sigtimedwait =
kernel.function("compat_sys_rt_sigtimedwait").call ?,
kernel.function("sys_rt_sigtimedwait").call
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
uthese_uaddr = @__pointer($uthese)
uinfo_uaddr = @__pointer($uinfo)
uts_uaddr = @__pointer($uts)
sigsetsize = $sigsetsize
if (@__compat_task) {
uthese_str = _stp_compat_sigset_u(uthese_uaddr)
uinfo_str = _stp_compat_siginfo_u(uinfo_uaddr)
uts_str = _struct_compat_timespec_u(uts_uaddr, 1)
} else {
uthese_str = _stp_sigset_u(uthese_uaddr)
uinfo_str = _stp_siginfo_u(uinfo_uaddr)
uts_str = _struct_timespec_u(uts_uaddr, 1)
}
@_SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
}
probe dw_syscall.rt_sigtimedwait.return =
kernel.function("compat_sys_rt_sigtimedwait").return ?,
kernel.function("sys_rt_sigtimedwait").return
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@SYSC_RETVALSTR($return)
}
# nd_rt_sigtimedwait _____________________________________________________
probe nd_syscall.rt_sigtimedwait = nd1_syscall.rt_sigtimedwait!, nd2_syscall.rt_sigtimedwait!, tp_syscall.rt_sigtimedwait
{ }
probe nd1_syscall.rt_sigtimedwait = __nd1_syscall.rt_sigtimedwait ?,
__nd1_syscall.compat_rt_sigtimedwait ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
asmlinkage()
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS
@_SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
}
probe __nd1_syscall.rt_sigtimedwait = kprobe.function("sys_rt_sigtimedwait")
{
asmlinkage()
sigsetsize = ulong_arg(4)
}
probe __nd1_syscall.compat_rt_sigtimedwait =
kprobe.function("compat_sys_rt_sigtimedwait")
{
asmlinkage()
sigsetsize = u32_arg(4)
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigtimedwait = __nd2_syscall.rt_sigtimedwait ?,
__nd2_syscall.compat_rt_sigtimedwait ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS
@_SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
}
probe __nd2_syscall.rt_sigtimedwait =
kprobe.function(@arch_syscall_prefix "sys_rt_sigtimedwait")
{
__set_syscall_pt_regs(pointer_arg(1))
sigsetsize = ulong_arg(4)
},
{
%( @_IS_SREG_KERNEL %?
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS_STORE
if (@probewrite(sigsetsize))
set_ulong_arg(4, sigsetsize)
%)
}
probe __nd2_syscall.compat_rt_sigtimedwait =
kprobe.function(@arch_syscall_prefix "compat_sys_rt_sigtimedwait")
{
__set_syscall_pt_regs(pointer_arg(1))
sigsetsize = u32_arg(4)
},
{
%( @_IS_SREG_KERNEL %?
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS_STORE
if (@probewrite(sigsetsize))
set_u32_arg(4, sigsetsize)
%)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigtimedwait = __tp_syscall.rt_sigtimedwait ?,
__tp_syscall.compat_rt_sigtimedwait ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS
sigsetsize = ulong_arg(4)
@_SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
}
probe __tp_syscall.rt_sigtimedwait = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_gate(@const("__NR_rt_sigtimedwait"))
sigsetsize = ulong_arg(4)
},
{
%( @_IS_SREG_KERNEL %?
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS_STORE
if (@probewrite(sigsetsize))
set_ulong_arg(4, sigsetsize)
%)
}
probe __tp_syscall.compat_rt_sigtimedwait = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__compat_syscall_gate(@const("__NR_compat_rt_sigtimedwait"))
sigsetsize = u32_arg(4)
},
{
%( @_IS_SREG_KERNEL %?
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS_STORE
if (@probewrite(sigsetsize))
set_u32_arg(4, sigsetsize)
%)
}
probe nd_syscall.rt_sigtimedwait.return = nd1_syscall.rt_sigtimedwait.return!, nd2_syscall.rt_sigtimedwait.return!, tp_syscall.rt_sigtimedwait.return
{ }
probe nd1_syscall.rt_sigtimedwait.return =
kprobe.function("compat_sys_rt_sigtimedwait").return ?,
kprobe.function("sys_rt_sigtimedwait").return ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigtimedwait.return =
kprobe.function(@arch_syscall_prefix "sys_rt_sigtimedwait").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_rt_sigtimedwait").return ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigtimedwait.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_rt_sigtimedwait"), @const("__NR_compat_rt_sigtimedwait"))
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@SYSC_RETVALSTR($ret)
}