libkern/kxld/kxld_demangle.c

   1 #if !KERNEL
   2
   3 #include <stdlib.h>
   4
   5 /* This demangler is part of the C++ ABI.  We don't include it directly from
   6  * <cxxabi.h> so that we can avoid using C++ in the kernel linker.
   7  */
   8 extern char *
   9 __cxa_demangle(const char* __mangled_name, char* __output_buffer,
  10                size_t* __length, int* __status);
  11
  12 #endif /* !KERNEL */
  13
  14 #include "kxld_demangle.h"
  15
  16 /*******************************************************************************
  17 *******************************************************************************/
  18 const char *
  19 kxld_demangle(const char *str, char **buffer __unused, size_t *length __unused)
  20 {
  21 #if KERNEL
  22     return str;
  23 #else
  24     const char *rval = NULL;
  25     char *demangled = NULL;
  26     int status;
  27
  28     if (!str) goto finish;
  29
  30     rval = str;
  31
  32     if (!buffer || !length) goto finish;
  33
  34     /* Symbol names in the symbol table have an extra '_' prepended to them,
  35      * so we skip the first character to make the demangler happy.
  36      */
  37     demangled = __cxa_demangle(str+1, *buffer, length, &status);
  38     if (!demangled || status) goto finish;
  39
  40     *buffer = demangled;
  41     rval = demangled;
  42 finish:
  43     return rval;
  44 #endif
  45 }
  46