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>

@@ -8,11 +8,11 @@
  * source.  A copy of the CDDL is also available via the Internet at
  * http://www.illumos.org/license/CDDL.
  */
 
 /*
- * Copyright 2015 Joyent, Inc.
+ * Copyright 2018 Joyent, Inc.
  */
 
 #if !defined(__lint)
         .file   "unix_sup.s"
 #endif /* __lint */

@@ -41,10 +41,20 @@
         ENTRY(kmdb_unix_getcr0)
         movq %cr0, %rax
         ret
         SET_SIZE(kmdb_unix_getcr0)
 
+        ENTRY(kmdb_unix_getcr2)
+        movq %cr2, %rax
+        ret
+        SET_SIZE(kmdb_unix_getcr2)
+
+        ENTRY(kmdb_unix_getcr3)
+        movq %cr3, %rax
+        ret
+        SET_SIZE(kmdb_unix_getcr3)
+
         ENTRY(kmdb_unix_getcr4)
         movq %cr4, %rax
         ret
         SET_SIZE(kmdb_unix_getcr4)
 

@@ -52,10 +62,20 @@
         ENTRY(kmdb_unix_getcr0)
         movl %cr0, %eax
         ret
         SET_SIZE(kmdb_unix_getcr0)
 
+        ENTRY(kmdb_unix_getcr2)
+        movl %cr2, %eax
+        ret
+        SET_SIZE(kmdb_unix_getcr2)
+
+        ENTRY(kmdb_unix_getcr3)
+        movl %cr3, %eax
+        ret
+        SET_SIZE(kmdb_unix_getcr3)
+
         ENTRY(kmdb_unix_getcr4)
         movl %cr4, %eax
         ret
         SET_SIZE(kmdb_unix_getcr4)