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# set_tid_address ____________________________________________
#
# asmlinkage long
# sys_set_tid_address(int __user *tidptr)
#
@define _SYSCALL_SET_TID_ADDRESS_NAME
%(
name = "set_tid_address"
%)
@define _SYSCALL_SET_TID_ADDRESS_ARGSTR
%(
argstr = sprintf("%p", tidptr_uaddr)
%)
@define _SYSCALL_SET_TID_ADDRESS_REGARGS
%(
tidptr_uaddr = pointer_arg(1)
%)
probe syscall.set_tid_address = dw_syscall.set_tid_address !,
nd_syscall.set_tid_address ? {}
probe syscall.set_tid_address.return = dw_syscall.set_tid_address.return !,
nd_syscall.set_tid_address.return ? {}
# dw_set_tid_address _____________________________________________________
probe dw_syscall.set_tid_address = kernel.function("sys_set_tid_address").call
{
@_SYSCALL_SET_TID_ADDRESS_NAME
tidptr_uaddr = $tidptr
@_SYSCALL_SET_TID_ADDRESS_ARGSTR
}
probe dw_syscall.set_tid_address.return = kernel.function("sys_set_tid_address").return
{
@_SYSCALL_SET_TID_ADDRESS_NAME
@SYSC_RETVALSTR($return)
}
# nd_set_tid_address _____________________________________________________
probe nd_syscall.set_tid_address = nd1_syscall.set_tid_address!, nd2_syscall.set_tid_address!, tp_syscall.set_tid_address
{ }
probe nd1_syscall.set_tid_address = kprobe.function("sys_set_tid_address") ?
{
@_SYSCALL_SET_TID_ADDRESS_NAME
asmlinkage()
@_SYSCALL_SET_TID_ADDRESS_REGARGS
@_SYSCALL_SET_TID_ADDRESS_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.set_tid_address = kprobe.function(@arch_syscall_prefix "sys_set_tid_address") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_SET_TID_ADDRESS_NAME
@_SYSCALL_SET_TID_ADDRESS_REGARGS
@_SYSCALL_SET_TID_ADDRESS_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.set_tid_address = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_set_tid_address"), @const("__NR_compat_set_tid_address"))
@_SYSCALL_SET_TID_ADDRESS_NAME
@_SYSCALL_SET_TID_ADDRESS_REGARGS
@_SYSCALL_SET_TID_ADDRESS_ARGSTR
}
probe nd_syscall.set_tid_address.return = nd1_syscall.set_tid_address.return!, nd2_syscall.set_tid_address.return!, tp_syscall.set_tid_address.return
{ }
probe nd1_syscall.set_tid_address.return = kprobe.function("sys_set_tid_address").return ?
{
@_SYSCALL_SET_TID_ADDRESS_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.set_tid_address.return = kprobe.function(@arch_syscall_prefix "sys_set_tid_address").return ?
{
@_SYSCALL_SET_TID_ADDRESS_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.set_tid_address.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_set_tid_address"), @const("__NR_compat_set_tid_address"))
@_SYSCALL_SET_TID_ADDRESS_NAME
@SYSC_RETVALSTR($ret)
}
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