FUNCTION::USER_STRIN(3stString and data retrieving FUNCTION::USER_STRIN(3stap)

NAME function::user_string2_warn - Retrieves string from user space with alternative warning string

SYNOPSIS 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.

SEE ALSO tapset::uconversions(3stap)

SystemTap Tapset Reference December 2016 FUNCTION::USER_STRIN(3stap)