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# kill _______________________________________________________
# long sys_kill(int pid, int sig)
@define _SYSCALL_KILL_NAME
%(
name = "kill"
%)
@define _SYSCALL_KILL_ARGSTR
%(
argstr = sprintf("%d, %s", pid, sig_name)
%)
@define _SYSCALL_KILL_REGARGS
%(
pid = int_arg(1)
sig = int_arg(2)
sig_name = _signal_name(sig)
%)
@define _SYSCALL_KILL_REGARGS_STORE
%(
if (@probewrite(pid))
set_int_arg(1, pid)
if (@probewrite(sig))
set_int_arg(2, sig)
%)
probe syscall.kill = dw_syscall.kill !, nd_syscall.kill ? {}
probe syscall.kill.return = dw_syscall.kill.return !, nd_syscall.kill.return ? {}
# dw_kill _____________________________________________________
probe dw_syscall.kill = kernel.function("sys_kill").call
{
@_SYSCALL_KILL_NAME
pid = __int32($pid)
sig = __int32($sig)
sig_name = _signal_name(sig)
@_SYSCALL_KILL_ARGSTR
}
probe dw_syscall.kill.return = kernel.function("sys_kill").return
{
@_SYSCALL_KILL_NAME
@SYSC_RETVALSTR($return)
}
# nd_kill _____________________________________________________
probe nd_syscall.kill = nd1_syscall.kill!, nd2_syscall.kill!, tp_syscall.kill
{ }
probe nd1_syscall.kill = kprobe.function("sys_kill") ?
{
@_SYSCALL_KILL_NAME
asmlinkage()
@_SYSCALL_KILL_REGARGS
@_SYSCALL_KILL_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.kill = kprobe.function(@arch_syscall_prefix "sys_kill") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_KILL_NAME
@_SYSCALL_KILL_REGARGS
@_SYSCALL_KILL_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_KILL_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.kill = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_kill"), @const("__NR_compat_kill"))
@_SYSCALL_KILL_NAME
@_SYSCALL_KILL_REGARGS
@_SYSCALL_KILL_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_KILL_REGARGS_STORE %)
}
probe nd_syscall.kill.return = nd1_syscall.kill.return!, nd2_syscall.kill.return!, tp_syscall.kill.return
{ }
probe nd1_syscall.kill.return = kprobe.function("sys_kill").return ?
{
@_SYSCALL_KILL_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.kill.return = kprobe.function(@arch_syscall_prefix "sys_kill").return ?
{
@_SYSCALL_KILL_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.kill.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_kill"), @const("__NR_compat_kill"))
@_SYSCALL_KILL_NAME
@SYSC_RETVALSTR($ret)
}
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