function::user_string_n_warn
名称
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.
