Devices                                              fasttrap(7D)



NAME
     fasttrap - DTrace user instruction tracing provider

DESCRIPTION
     The fasttrap driver is a  DTrace  dynamic  tracing  provider
     that  performs dynamic instrumentation of arbitrary instruc-
     tions in Solaris processes. The fasttrap  driver  implements
     the DTrace fasttrap and pid providers.


     The fasttrap driver is not a public interface and you access
     instrumentation  offered  by  this  provider through DTrace.
     Refer to the Solaris Dynamic Tracing Guide for a description
     of the public documented interfaces available for the DTrace
     facility and the probes offered by the fasttrap provider.

SPARC ONLY
     The fasttrap provider provides a  DTrace  probe  that  fires
     each  time  a  user process executes an instruction. The pid
     provider allows for the dynamic creation  of  DTrace  probes
     corresponding  to instruction locations inside any user pro-
     cess specified using a process ID and an instruction address
     or symbol name. Together these providers permit DTrace users
     to perform instrumentation of Solaris user processes and  to
     trace  the  interactions between processes and the operating
     system. See the chapter entitled "User Process Tracing"   in
     the  Solaris Dynamic Tracing Guide for information on how to
     use these providers to instrument processes.

ATRIBUTES
     See attributes(5) for a description of the following  attri-
     butes:



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Availability                 SUNWdtrp                    
    
     Interface Stability          Private                     
    


SEE ALSO
     dtrace(1M), attributes(5), dtrace(7D)


     Solaris Dynamic Tracing Guide






SunOS 5.11           Last change: 4 Sep 2003                    1