function::user_string.3stap - Man Page
Retrieves string from user space
Synopsis
1) user_string:string(addr:long)
2) user_string:string(addr:long,err_msg:string)
Arguments
- addr
the user space address to retrieve the string from
- err_msg
the error message to return when data isn't available
Description
1) Returns the null terminated C string from a given user space memory address. Reports an error on the rare cases when userspace data is not accessible.
2) Returns the null terminated C string from a given user space memory address. Reports the given error message on the rare cases when userspace data is not accessible.
See Also0
tapset::uconversions(3stap)
See Also0
tapset::uconversions(3stap)
Info
April 2024 SystemTap Tapset Reference String and data retrieving fun