function::user_string
Retrieves string from user space
- Provided by: systemtap-doc (Version: 5.0-2ubuntu1)
- Source: systemtap
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SYNOPSIS
1) user_string:string(addr:long)
2) user_string: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
1) Returns the null terminated C string from a given user space memory address. Reports an error on the rare cases when userspace data is not accessible.
2) 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.