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9210 remove KMDB branch debugging support
9211 ::crregs could do with cr2/cr3 support
9209 ::ttrace should be able to filter by thread
Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>

@@ -19,14 +19,14 @@
  * CDDL HEADER END
  */
 /*
  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright 2018 Joyent, Inc.
  */
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"
-
 /*
  * Libkvm Kernel Target SPARC v9 component
  *
  * This file provides the ISA-dependent portion of the libkvm kernel target.
  * For more details on the implementation refer to mdb_kvm.c.  The SPARC v9

@@ -215,11 +215,10 @@
         kt_name_to_ctf,                         /* t_name_to_ctf */
         kt_status,                              /* t_status */
         (int (*)()) mdb_tgt_notsup,             /* t_run */
         (int (*)()) mdb_tgt_notsup,             /* t_step */
         (int (*)()) mdb_tgt_notsup,             /* t_step_out */
-        (int (*)()) mdb_tgt_notsup,             /* t_step_branch */
         (int (*)()) mdb_tgt_notsup,             /* t_next */
         (int (*)()) mdb_tgt_notsup,             /* t_cont */
         (int (*)()) mdb_tgt_notsup,             /* t_signal */
         (int (*)()) mdb_tgt_null,               /* t_add_vbrkpt */
         (int (*)()) mdb_tgt_null,               /* t_add_sbrkpt */