10816 ctf_dwarf_convert_type() relies on un-initialized id
10817 ctfconvert -i option is mis-handled
10818 Improve ctfconvert error messages
10819 ctfconvert should handle empty dies
10820 ctfconvert -i never converts
10821 bad free in ctf_dwarf_init_die
10815 shouldn't build gcore.c as part of kmdb
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

@@ -22,11 +22,11 @@
 /*
  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 /*
- * Copyright (c) 2015, Joyent, Inc.
+ * Copyright (c) 2019, Joyent, Inc.
  */
 
 #include <ctf_impl.h>
 
 static const char *const _ctf_errlist[] = {

@@ -81,11 +81,11 @@
         "Label already exists",                          /* ECTF_LABEL */
         "Merged labels conflict",                        /* ECTF_LCONFLICT */
         "Zlib library failure",                          /* ECTF_ZLIB */
         "CTF conversion backend error",                  /* ECTF_CONVBKERR */
         "No C source to convert from",                   /* ECTF_CONVNOCSRC */
-        "No applicable conversion backend"               /* ECTF_NOCONVBKEND */
+        "No debug info found to convert from"            /* ECTF_CONVNODEBUG */
 };
 
 static const int _ctf_nerr = sizeof (_ctf_errlist) / sizeof (_ctf_errlist[0]);
 
 const char *