FBT Stability Mechanism
The FBT provider uses stability mechanism of DTrace to describe its stabilities, as shown in the following table. For more information about the stability mechanism, see DTrace Stability Mechanisms.
Table 11-4 Stability Mechanism for the fbt
Provider
Element | Name Stability | Data Stability | Dependency Class |
---|---|---|---|
Provider |
Evolving |
Evolving |
ISA |
Module |
Private |
Private |
Unknown |
Function |
Private |
Private |
Unknown |
Name |
Evolving |
Evolving |
ISA |
Arguments |
Private |
Private |
ISA |
As FBT exposes the kernel implementation, nothing about it is
Stable
and the Module
and Function
name and data stability are
explicitly Private
. The data stability for
Provider
and Name
are
Evolving
, but all other data stabilities
are Private
, which are artifacts of the current
implementation. The dependency class for FBT is ISA. While FBT is
available on all current instruction set architectures, there is no
guarantee that FBT will be available on arbitrary future instruction
set architectures.