This feature is new in the Software Express pilot program and in the Solaris 9 4/03 release. This feature is included in the Solaris 10 3/05 release.
Stack Check APIs allow for advanced interaction with stack-checking compiler support available in the Sun ONE Studio. These APIs should be used in applications that are compiled with stack checking enabled, and either manage their own stacks or attempt to detect their own stack overflows.
Developers who maintain their own thread library need to use the setustack interface to enable consumers of their library to compile with stack checking enabled.