10812 ctf tools shouldn't add blank labels
10813 ctf symbol mapping needs work
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

*** 8,18 ****
   * source.  A copy of the CDDL is also available via the Internet at
   * http://www.illumos.org/license/CDDL.
   */
  
  /*
!  * Copyright 2015 Joyent, Inc.
   */
  
  #ifndef _LIBCTF_IMPL_H
  #define _LIBCTF_IMPL_H
  
--- 8,18 ----
   * source.  A copy of the CDDL is also available via the Internet at
   * http://www.illumos.org/license/CDDL.
   */
  
  /*
!  * Copyright 2019 Joyent, Inc.
   */
  
  #ifndef _LIBCTF_IMPL_H
  #define _LIBCTF_IMPL_H
  
*** 39,58 ****
      ctf_file_t **, char *, size_t);
  extern ctf_conv_status_t ctf_dwarf_convert(int, Elf *, uint_t, int *,
      ctf_file_t **, char *, size_t);
  
  /*
   * zlib compression routines
   */
  extern int ctf_compress(ctf_file_t *fp, void **, size_t *, size_t *);
  
  extern int ctf_diff_self(ctf_diff_t *, ctf_diff_type_f, void *);
  
  /*
   * Internal debugging aids
   */
! extern void ctf_phase_dump(ctf_file_t *, const char *);
  
  #ifdef __cplusplus
  }
  #endif
  
--- 39,66 ----
      ctf_file_t **, char *, size_t);
  extern ctf_conv_status_t ctf_dwarf_convert(int, Elf *, uint_t, int *,
      ctf_file_t **, char *, size_t);
  
  /*
+  * Symbol walking
+  */
+ typedef int (*ctf_symtab_f)(const Elf64_Sym *, ulong_t, const char *,
+     const char *, boolean_t, void *);
+ extern int ctf_symtab_iter(ctf_file_t *, ctf_symtab_f, void *);
+ 
+ /*
   * zlib compression routines
   */
  extern int ctf_compress(ctf_file_t *fp, void **, size_t *, size_t *);
  
  extern int ctf_diff_self(ctf_diff_t *, ctf_diff_type_f, void *);
  
  /*
   * Internal debugging aids
   */
! extern void ctf_phase_dump(ctf_file_t *, const char *, const char *);
! extern void ctf_phase_bump(void);
  
  #ifdef __cplusplus
  }
  #endif