table of contents
other versions
- jessie 2.6-0.2
FUNCTION::USER_STRIN(3stap) | String and data retrieving fun | FUNCTION::USER_STRIN(3stap) |
NAME¶
function::user_string2_n_warn - Retrieves string from user space with alternative warning stringSYNOPSIS¶
user_string2_n_warn:string(addr:long,n:long,warn_msg:string)
ARGUMENTS¶
addrthe user space address to retrieve the string from
n
the maximum length of the string (if not null
terminated)
warn_msg
the warning message to return when data isn't
available
DESCRIPTION¶
Returns up to n characters of a 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.November 2014 | SystemTap Tapset Reference |