function::user_string_warn.3stap - Man Page
Retrieves string from user space
Synopsis
1) user_string_warn:string(addr:long)
2) user_string_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
1) Returns the null terminated C string from a given user space memory address. Reports "" on the rare cases when userspace data is not accessible and warns (but does not abort) about the failure.
2) 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.
See Also0
tapset::uconversions(3stap)
Info
April 2024 SystemTap Tapset Reference String and data retrieving fun