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FUNCTION:(3stap) String and data retrieving fun FUNCTION:(3stap)

function::user_string2
 

NAME

function::user_string2 - Retrieves string from user space with alternative error string

SYNOPSIS

    user_string2: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

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.
May 2013 SystemTap Tapset Reference