6375 Add native name demangling support
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>

@@ -20,14 +20,14 @@
  */
 
 /*
  * 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"
-
 /*
  * All routines in this file are for processing new-style, *versioned*
  * mon.out format. Together with rdelf.c, lookup.c and profv.h, these
  * form the complete set of files to profile new-style mon.out files.
  */

@@ -72,11 +72,12 @@
 
         nbp = namebuf;
         nbe = namebuf + namebuf_sz;
 
         for (i = 0; i < total_funcs; i++) {
-                if ((p = conv_demangle_name(profsym[i].name)) == NULL)
+                p = conv_demangle_name(profsym[i].name);
+                if (p == profsym[i].name)
                         continue;
 
                 namelen = strlen(p);
                 if ((nbp + namelen + 1) > nbe) {
                         namebuf_sz += BUCKET_SZ;

@@ -95,10 +96,11 @@
                 (void) strcpy(nbp, p);
                 profsym[i].demangled_name = nbp;
 
                 nbp += namelen + 1;
                 cur_len += namelen + 1;
+                free((void *)p);
         }
 }
 
 int
 cmp_by_time(const void *arg1, const void *arg2)