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|
# rt_sigsuspend ______________________________________________
#
# SYSCALL_DEFINE2(rt_sigsuspend, sigset_t __user *, unewset, size_t, sigsetsize)
#
@define _SYSCALL_RT_SIGSUSPEND_NAME
%(
name = "rt_sigsuspend"
%)
@define _SYSCALL_RT_SIGSUSPEND_ARGSTR
%(
argstr = sprintf("%s, %u", set_str, sigsetsize)
%)
@define _SYSCALL_RT_SIGSUSPEND_REGARGS
%(
set_uaddr = pointer_arg(1)
sigsetsize = ulong_arg(2)
set_str = (@__compat_task ? _stp_compat_sigset_u(set_uaddr)
: _stp_sigset_u(set_uaddr))
%)
@define _SYSCALL_RT_SIGSUSPEND_REGARGS_STORE
%(
if (@probewrite(set_uaddr))
set_pointer_arg(1, set_uaddr)
if (@probewrite(sigsetsize))
set_ulong_arg(2, sigsetsize)
%)
probe syscall.rt_sigsuspend = dw_syscall.rt_sigsuspend !, nd_syscall.rt_sigsuspend ? {}
probe syscall.rt_sigsuspend.return = dw_syscall.rt_sigsuspend.return !,
nd_syscall.rt_sigsuspend.return ? {}
# dw_rt_sigsuspend _____________________________________________________
probe dw_syscall.rt_sigsuspend = kernel.function("compat_sys_rt_sigsuspend").call ?,
kernel.function("ia64_rt_sigsuspend").call ?,
kernel.function("sys_rt_sigsuspend").call ?
{
@_SYSCALL_RT_SIGSUSPEND_NAME
set_uaddr = @__pointer($unewset)
sigsetsize = @__compat_ulong($sigsetsize)
set_str = (@__compat_task ? _stp_compat_sigset_u(set_uaddr)
: _stp_sigset_u(set_uaddr))
@_SYSCALL_RT_SIGSUSPEND_ARGSTR
}
probe dw_syscall.rt_sigsuspend.return =
kernel.function("compat_sys_rt_sigsuspend").return ?,
kernel.function("ia64_rt_sigsuspend").return ?,
kernel.function("sys_rt_sigsuspend").return ?
{
@_SYSCALL_RT_SIGSUSPEND_NAME
@SYSC_RETVALSTR($return)
}
# nd_rt_sigsuspend _____________________________________________________
probe nd_syscall.rt_sigsuspend = nd1_syscall.rt_sigsuspend!, nd2_syscall.rt_sigsuspend!, tp_syscall.rt_sigsuspend
{ }
probe nd1_syscall.rt_sigsuspend = kprobe.function("sys_rt_sigsuspend") ?,
kprobe.function("ia64_rt_sigsuspend") ?,
kprobe.function("compat_sys_rt_sigsuspend") ?
{
asmlinkage()
@_SYSCALL_RT_SIGSUSPEND_NAME
@_SYSCALL_RT_SIGSUSPEND_REGARGS
@_SYSCALL_RT_SIGSUSPEND_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigsuspend = kprobe.function(@arch_syscall_prefix "sys_rt_sigsuspend") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_RT_SIGSUSPEND_NAME
@_SYSCALL_RT_SIGSUSPEND_REGARGS
@_SYSCALL_RT_SIGSUSPEND_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_RT_SIGSUSPEND_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigsuspend = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_rt_sigsuspend"), @const("__NR_compat_rt_sigsuspend"))
@_SYSCALL_RT_SIGSUSPEND_NAME
@_SYSCALL_RT_SIGSUSPEND_REGARGS
@_SYSCALL_RT_SIGSUSPEND_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_RT_SIGSUSPEND_REGARGS_STORE %)
}
probe nd_syscall.rt_sigsuspend.return = nd1_syscall.rt_sigsuspend.return!, nd2_syscall.rt_sigsuspend.return!, tp_syscall.rt_sigsuspend.return
{ }
probe nd1_syscall.rt_sigsuspend.return =
kprobe.function("sys_rt_sigsuspend").return ?,
kprobe.function("ia64_rt_sigsuspend").return ?,
kprobe.function("compat_sys_rt_sigsuspend").return ?
{
@_SYSCALL_RT_SIGSUSPEND_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigsuspend.return = kprobe.function(@arch_syscall_prefix "sys_rt_sigsuspend").return ?
{
@_SYSCALL_RT_SIGSUSPEND_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigsuspend.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_rt_sigsuspend"), @const("__NR_compat_rt_sigsuspend"))
@_SYSCALL_RT_SIGSUSPEND_NAME
@SYSC_RETVALSTR($ret)
}
|
