/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "jvm.h"

#include "utilities/decoder_elf.hpp"

#include <cxxabi.h>

bool ElfDecoder::demangle(const char* symbol, char *buf, int buflen) {

  int   status;

  char* result;

  size_t size = (size_t)buflen;

#ifdef PPC64

  // On PPC64 ElfDecoder::decode() may return a dot (.) prefixed name

  // (see elfFuncDescTable.hpp for details)

  if (symbol && *symbol == '.') symbol += 1;

#endif

  // Don't pass buf to __cxa_demangle. In case of the 'buf' is too small,

  // __cxa_demangle will call system "realloc" for additional memory, which

  // may use different malloc/realloc mechanism that allocates 'buf'.

  if ((result = abi::__cxa_demangle(symbol, NULL, NULL, &status)) != NULL) {

    jio_snprintf(buf, buflen, "%s", result);

      // call c library's free

      ::free(result);

      return true;

  }

  return false;

}