FUNCTION::USER_STRIN(3stString and data retrieving FUNCTION::USER_STRIN(3stap) NAME function::user_string_n_warn - Retrieves string from user space SYNOPSIS user_string_n_warn:string(addr:long,n:long) ARGUMENTS addr the user space address to retrieve the string from n the maximum length of the string (if not null terminated) DESCRIPTION Returns up to n characters of a C string from a given user space memory address. Reports “<unknown>” on the rare cases when userspace data is not accessible and warns (but does not abort) about the failure. AUTHOR SystemTap Hackers COPYRIGHT SystemTap Tapset Reference February 2012 FUNCTION::USER_STRIN(3stap)[top]
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