probe::syscall_any.return.3stap - Man Page

Record exit from a syscall

Synopsis

syscall_any.return

Values

retval

return value of the syscall

name

name of the syscall

syscall_nr

number of the syscall

Context

The process performing the syscall

Description

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.

See Also0

tapset::syscall_any(3stap)

Info

May 2021 SystemTap Tapset Reference Syscall Any Tapset