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|
# tgkill _____________________________________________________
#
# asmlinkage long
# sys_tgkill(int tgid,
# int pid,
# int sig)
#
@define _SYSCALL_TGKILL_NAME
%(
name = "tgkill"
%)
@define _SYSCALL_TGKILL_ARGSTR
%(
argstr = sprintf("%d, %d, %s", tgid, pid, sig_str)
%)
@define _SYSCALL_TGKILL_REGARGS
%(
tgid = int_arg(1)
pid = int_arg(2)
sig = int_arg(3)
sig_str = _signal_name(sig)
%)
probe syscall.tgkill = dw_syscall.tgkill !, nd_syscall.tgkill ? {}
probe syscall.tgkill.return = dw_syscall.tgkill.return !,
nd_syscall.tgkill.return ? {}
# dw_tgkill _____________________________________________________
probe dw_syscall.tgkill = kernel.function("sys_tgkill").call
{
@_SYSCALL_TGKILL_NAME
tgid = __int32($tgid)
pid = __int32($pid)
sig = __int32($sig)
sig_str = _signal_name(sig)
@_SYSCALL_TGKILL_ARGSTR
}
probe dw_syscall.tgkill.return = kernel.function("sys_tgkill").return
{
@_SYSCALL_TGKILL_NAME
@SYSC_RETVALSTR($return)
}
# nd_tgkill _____________________________________________________
probe nd_syscall.tgkill = nd1_syscall.tgkill!, nd2_syscall.tgkill!, tp_syscall.tgkill
{ }
probe nd1_syscall.tgkill = kprobe.function("sys_tgkill") ?
{
@_SYSCALL_TGKILL_NAME
asmlinkage()
@_SYSCALL_TGKILL_REGARGS
@_SYSCALL_TGKILL_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.tgkill = kprobe.function(@arch_syscall_prefix "sys_tgkill") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_TGKILL_NAME
@_SYSCALL_TGKILL_REGARGS
@_SYSCALL_TGKILL_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.tgkill = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_tgkill"), @const("__NR_compat_tgkill"))
@_SYSCALL_TGKILL_NAME
@_SYSCALL_TGKILL_REGARGS
@_SYSCALL_TGKILL_ARGSTR
}
probe nd_syscall.tgkill.return = nd1_syscall.tgkill.return!, nd2_syscall.tgkill.return!, tp_syscall.tgkill.return
{ }
probe nd1_syscall.tgkill.return = kprobe.function("sys_tgkill").return ?
{
@_SYSCALL_TGKILL_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.tgkill.return = kprobe.function(@arch_syscall_prefix "sys_tgkill").return ?
{
@_SYSCALL_TGKILL_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.tgkill.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_tgkill"), @const("__NR_compat_tgkill"))
@_SYSCALL_TGKILL_NAME
@SYSC_RETVALSTR($ret)
}
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