gdb: libthread_db

 
 22.8.2 Automatically loading thread debugging library
 -----------------------------------------------------
 
 This feature is currently present only on GNU/Linux native hosts.
 
    GDB reads in some cases thread debugging library from places specific
 to the inferior (Seeset libthread-db-search-path).
 
    The special 'libthread-db-search-path' entry '$sdir' is processed
 without checking this 'set auto-load libthread-db' switch as system
 libraries have to be trusted in general.  In all other cases of
 'libthread-db-search-path' entries GDB checks first if 'set auto-load
 libthread-db' is enabled before trying to open such thread debugging
 library.
 
    Note that loading of this debugging library also requires accordingly
 configured 'auto-load safe-path' (SeeAuto-loading safe path).
 
 'set auto-load libthread-db [on|off]'
      Enable or disable the auto-loading of inferior specific thread
      debugging library.
 
 'show auto-load libthread-db'
      Show whether auto-loading of inferior specific thread debugging
      library is enabled or disabled.
 
 'info auto-load libthread-db'
      Print the list of all loaded inferior specific thread debugging
      libraries and for each such library print list of inferior PIDs
      using it.