starting-address

    For Alpha, an expression representing the starting address of the
    procedure call frame to be displayed. If no starting-address is
    given, the default starting address is the contents of the frame
    pointer (FP) register of the SDA current process. For a process
    that uses pthreads, the following SDA command can be used to
    display the starting addresses for all pthreads:

    SDA> pthread thread -o u

    For Integrity servers, the starting address is an expression
    representing one of the following:

    o  The invocation context handle of a frame.

    o  The address of an exception frame. This is equivalent to the
       following SDA command:

       SDA> SHOW CALL_FRAME /EXCEPTION_FRAME=intstk-address

    o  The address of a Thread Environment Block (TEB).

       For a list of all TEBs for the process, use the following SDA
       command:

       SDA> pthread thread -o u

    If no starting address is given, the default starting address is
    the invocation context handle of the current procedure in the SDA
    current process.