nuttx/libs/libc/symtab/symtab_findbyname.c

/****************************************************************************
 * libs/libc/symtab/symtab_findbyname.c
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The
 * ASF licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 ****************************************************************************/

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#include <string.h>
#include <debug.h>
#include <assert.h>
#include <errno.h>

#include <nuttx/symtab.h>

/****************************************************************************
 * Public Functions
 ****************************************************************************/

/****************************************************************************
 * Name: symtab_findbyname
 *
 * Description:
 *   Find the symbol in the symbol table with the matching name.
 *   This version assumes that table is not ordered with respect to symbol
 *   name and, hence, access time will be linear with respect to nsyms.
 *
 * Returned Value:
 *   A reference to the symbol table entry if an entry with the matching
 *   name is found; NULL is returned if the entry is not found.
 *
 ****************************************************************************/

FAR const struct symtab_s *
symtab_findbyname(FAR const struct symtab_s *symtab,
                  FAR const char *name, int nsyms)
{
  DEBUGASSERT(symtab != NULL && name != NULL);
  for (; nsyms > 0; symtab++, nsyms--)
    {
      if (strcmp(name, symtab->sym_name) == 0)
        {
          return symtab;
        }
    }
  return NULL;
}