红帽全球峰会function::user_string2_warn
名称
function::user_string2_warn — Retrieves string from user space with alternative warning string
Synopsis
user_string2_warn:string(addr:long,warn_msg:string)
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
Description
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.
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