srn_dbg_sym.c

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/* -*- C -*-
 * Serene programming language
 * Copyright (C) 2019-2026 Sameer Rahmani <lxsameer@lxsameer.com>
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#include "serene/utils/srn_dbg_sym.h"
 
#if !SRN_DBG_SYM_WIN32
 
#  include <dlfcn.h>
#  include <string.h>
 
const char *srn_dbg_sym_name(void *addr, char *buf, size_t buflen) {
  if (buflen == 0) {
    return nullptr;
  }
 
  Dl_info info;
  if (dladdr(addr, &info) && info.dli_sname != nullptr) {
    strncpy(buf, info.dli_sname, buflen - 1);
    buf[buflen - 1] = '\0';
    return buf;
  }
 
  return nullptr;
}
 
#endif