svn commit: r236404 - head/sys/kern

[John Baldwin]

On Friday, June 01, 2012 11:42:37 am John Baldwin wrote:
> Author: jhb
> Date: Fri Jun  1 15:42:37 2012
> New Revision: 236404
> URL: http://svn.freebsd.org/changeset/base/236404
> 
> Log:
>   Extend VERBOSE_SYSINIT to also print out the name of variables passed
>   to SYSINIT routines if they can be resolved via symbol look up in DDB.
>   To avoid false positives, only honor a name if the symbol resolves
>   exactly to the pointer value (no offset).
>   
>   MFC after:	1 week

Some sample output:

subsystem e000000                                                               
   kick_init(0)... done.                                                        
   kstack_cache_init(0)... done.                                                
subsystem e400000                                                               
   kproc_start(&page_kp)... done.                                               
subsystem e800000                                                               
   kproc_start(&vm_kp)... done.                                                 
   pagezero_start(0)... done.                                                   
subsystem ea00000                                                               
   kproc_start(&buf_kp)... done.                                                
subsystem ec00000                                                               
   kproc_start(&up_kp)... done.                                                 
   kproc_start(&vnlru_kp)... done.                                              
   kproc_start(&softdep_kp)... done.

SDT initialization uses some really long names:

   sdt_argtype_register(&sdt_mac_framework_kernel_vnode_check_deleteextattr_mac_check_ok4)... 
done.
   sdt_argtype_register(&sdt_mac_framework_kernel_vnode_check_deleteextattr_mac_check_ok3)... 
done.
   sdt_argtype_register(&sdt_mac_framework_kernel_vnode_check_deleteextattr_mac_check_ok2)... 
done.
   sdt_argtype_register(&sdt_mac_framework_kernel_vnode_check_deleteextattr_mac_check_ok1)... 
done.
   sdt_argtype_register(&sdt_mac_framework_kernel_vnode_check_deleteextattr_mac_check_ok0)... 
done.
   sdt_argtype_register(&sdt_mac_framework_kernel_cred_check_setresgid_mac_check_err2)... 
done.
   sdt_argtype_register(&sdt_mac_framework_kernel_vnode_check_deleteextattr_mac_check_err4)... 
done.
   sdt_argtype_register(&sdt_mac_framework_kernel_vnode_check_deleteextattr_mac_check_err3)... 
done.
   sdt_argtype_register(&sdt_mac_framework_kernel_vnode_check_deleteextattr_mac_check_err2)... 
done.

etc.

-- 
John Baldwin