function::user_string2_warn3stap
Retrieves string from user space with alternative warning string
Usage
user_string2_warn:string(addr:long,warn_msg:string)
Arguments
addr
the user space address to retrieve the string from
warn_msg
the warning message to return when data isn't available
Overview
Returns the null terminated C string from a given user space memory address. Reports the given warning message on the rare cases when userspace data is not accessible and warns (but does not abort) about the failure.