| /**************************************************************************** |
| * binfmt/builtin.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 <stdint.h> |
| #include <string.h> |
| #include <debug.h> |
| #include <errno.h> |
| |
| #include <nuttx/binfmt/binfmt.h> |
| #include <nuttx/lib/builtin.h> |
| |
| #ifdef CONFIG_BUILTIN |
| |
| /**************************************************************************** |
| * Private Function Prototypes |
| ****************************************************************************/ |
| |
| static int builtin_loadbinary(FAR struct binary_s *binp, |
| FAR const char *filename, |
| FAR const struct symtab_s *exports, |
| int nexports); |
| |
| /**************************************************************************** |
| * Private Data |
| ****************************************************************************/ |
| |
| static struct binfmt_s g_builtin_binfmt = |
| { |
| NULL, /* next */ |
| builtin_loadbinary, /* load */ |
| NULL, /* unload */ |
| }; |
| |
| /**************************************************************************** |
| * Private Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Name: builtin_loadbinary |
| * |
| * Description: |
| * Verify that the file is an builtin binary. |
| * |
| ****************************************************************************/ |
| |
| static int builtin_loadbinary(FAR struct binary_s *binp, |
| FAR const char *filename, |
| FAR const struct symtab_s *exports, |
| int nexports) |
| { |
| FAR const struct builtin_s *builtin; |
| FAR char *name; |
| int index; |
| |
| binfo("Loading file: %s\n", filename); |
| |
| name = strrchr(filename, '/'); |
| if (name != NULL) |
| { |
| filename = name + 1; |
| } |
| |
| /* Looking up the index to this name in g_builtins[] */ |
| |
| index = builtin_isavail(filename); |
| if (index < 0) |
| { |
| berr("ERROR: %s is not a builtin application\n", filename); |
| return index; |
| } |
| |
| /* Return the load information. NOTE: that there is no way to configure |
| * the priority. That is a bug and needs to be fixed. |
| */ |
| |
| builtin = builtin_for_index(index); |
| if (builtin == NULL) |
| { |
| berr("ERROR: %s is not a builtin application\n", filename); |
| return -ENOENT; |
| } |
| |
| binp->entrypt = builtin->main; |
| binp->stacksize = builtin->stacksize; |
| binp->priority = builtin->priority; |
| #ifdef CONFIG_SCHED_USER_IDENTITY |
| binp->uid = builtin->uid; |
| binp->gid = builtin->gid; |
| binp->mode = builtin->mode; |
| #endif |
| |
| return OK; |
| } |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Name: builtin_initialize |
| * |
| * Description: |
| * In order to use the builtin binary format, this function must be called |
| * during system initialize to register the builtin binary format. |
| * |
| * Returned Value: |
| * This is a NuttX internal function so it follows the convention that |
| * 0 (OK) is returned on success and a negated errno is returned on |
| * failure. |
| * |
| ****************************************************************************/ |
| |
| int builtin_initialize(void) |
| { |
| int ret; |
| |
| /* Register ourselves as a binfmt loader */ |
| |
| binfo("Registering Builtin Loader\n"); |
| |
| ret = register_binfmt(&g_builtin_binfmt); |
| if (ret != 0) |
| { |
| berr("Failed to register binfmt: %d\n", ret); |
| } |
| |
| return ret; |
| } |
| |
| /**************************************************************************** |
| * Name: builtin_uninitialize |
| * |
| * Description: |
| * Unregister the builtin binary loader |
| * |
| * Returned Value: |
| * None |
| * |
| ****************************************************************************/ |
| |
| void builtin_uninitialize(void) |
| { |
| unregister_binfmt(&g_builtin_binfmt); |
| } |
| |
| #endif /* CONFIG_BUILTIN */ |