Current File : //usr/share/systemtap/tapset/linux/syscall_any.stp
/**
* probe syscall_any - Record entry into a syscall
*
* @syscall_nr: number of the syscall
* @name: name of the syscall
*
* Context: The process performing the syscall
*
* The syscall_any probe point is designed to be a low overhead
* that monitors all the syscalls entered via a kernel tracepoint.
* Because of the breadth of syscalls it monitors it provides
* no information about the syscall arguments or argstr string
* representation of those arguments.
*
* This requires kernel 3.5+ and newer which have the
* kernel.trace("sys_enter") probe point.
*/
probe syscall_any = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
syscall_nr = $id
name = syscall_name($id)
}
/**
* probe syscall_any.return - Record exit from a syscall
*
* @syscall_nr: number of the syscall
* @name: name of the syscall
* @retval: return value of the syscall
*
* Context: The process performing the syscall
*
* The syscall_any.return probe point is designed to be a low overhead
* that monitors all the syscalls returns via a kernel tracepoint.
* Because of the breadth of syscalls it monitors it provides
* no information about the syscall arguments, argstr string
* representation of those arguments, or a string interpretation
* of the return value (retval).
*
* This requires kernel 3.5+ and newer which have the
* kernel.trace("sys_exit") probe point.
*/
probe syscall_any.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
syscall_nr = _stp_syscall_nr()
name = syscall_name(_stp_syscall_nr())
retval = $ret
}
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