231 lines
7.3 KiB
C
231 lines
7.3 KiB
C
/****************************************************************************
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* apps/examples/nxflat/nxflat_main.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/compiler.h>
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#include <sys/mount.h>
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#include <sys/boardctl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <pthread.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/symtab.h>
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#include <nuttx/drivers/ramdisk.h>
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#include <nuttx/binfmt/binfmt.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Check configuration. This is not all of the configuration settings that
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* are required -- only the more obvious.
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*/
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#ifndef CONFIG_NXFLAT
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# error "You must select CONFIG_NXFLAT in your configuration file"
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#endif
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#ifndef CONFIG_FS_ROMFS
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# error "You must select CONFIG_FS_ROMFS in your configuration file"
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#endif
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#ifdef CONFIG_DISABLE_MOUNTPOINT
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# error "You must not disable mountpoints via CONFIG_DISABLE_MOUNTPOINT in your configuration file"
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#endif
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#ifdef CONFIG_BINFMT_DISABLE
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# error "You must not disable loadable modules via CONFIG_BINFMT_DISABLE in your configuration file"
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#endif
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#ifndef CONFIG_BOARDCTL_ROMDISK
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# error "CONFIG_BOARDCTL_ROMDISK should be enabled in the configuration file"
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#endif
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/* Describe the ROMFS file system */
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#define SECTORSIZE 512
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#define NSECTORS(b) (((b)+SECTORSIZE-1)/SECTORSIZE)
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#define ROMFSDEV "/dev/ram0"
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#define MOUNTPT "/mnt/romfs"
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/* If CONFIG_DEBUG_FEATURES is enabled, use info/err instead of printf so
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* that the output will be synchronous with the debug output.
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*/
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#ifdef CONFIG_DEBUG_INFO
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# define message _info
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#else
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# define message printf
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#endif
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#ifdef CONFIG_DEBUG_ERROR
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# define errmsg _err
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#else
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# define errmsg printf
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const char delimiter[] =
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"**************************************"
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"**************************************";
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#ifndef CONFIG_LIB_ENVPATH
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static char fullpath[128];
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#endif
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/****************************************************************************
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* Symbols from Auto-Generated Code
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****************************************************************************/
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extern const unsigned char romfs_img[];
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extern const unsigned int romfs_img_len;
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extern const char *dirlist[];
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extern const struct symtab_s g_nxflat_exports[];
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extern const int g_nxflat_nexports;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: testheader
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****************************************************************************/
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static inline void testheader(FAR const char *progname)
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{
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message("\n%s\n* Executing %s\n%s\n\n", delimiter, progname, delimiter);
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxflat_main
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****************************************************************************/
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int main(int argc, FAR char *argv[])
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{
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FAR char *args[2];
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int ret;
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int i;
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struct boardioc_romdisk_s desc;
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/* Create a ROM disk for the ROMFS filesystem */
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message("Registering romdisk\n");
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desc.minor = 0; /* Minor device number of the ROM disk. */
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desc.nsectors = NSECTORS(romfs_img_len); /* The number of sectors in the ROM disk */
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desc.sectsize = SECTORSIZE; /* The size of one sector in bytes */
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desc.image = (FAR uint8_t *)romfs_img; /* File system image */
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ret = boardctl(BOARDIOC_ROMDISK, (uintptr_t)&desc);
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if (ret < 0)
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{
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errmsg("ERROR: romdisk_register failed: %d\n", ret);
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exit(1);
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}
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/* Mount the file system */
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message("Mounting ROMFS filesystem at target=%s with source=%s\n",
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MOUNTPT, ROMFSDEV);
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ret = mount(ROMFSDEV, MOUNTPT, "romfs", MS_RDONLY, NULL);
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if (ret < 0)
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{
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errmsg("ERROR: mount(%s,%s,romfs) failed: %d\n",
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ROMFSDEV, MOUNTPT, errno);
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}
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#if defined(CONFIG_LIB_ENVPATH) && !defined(CONFIG_PATH_INITIAL)
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/* Does the system support the PATH variable? Has the PATH variable
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* already been set? If YES and NO, then set the PATH variable to
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* the ROMFS mountpoint.
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*/
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setenv("PATH", MOUNTPT, 1);
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#endif
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/* Now exercise every progrm in the ROMFS file system */
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for (i = 0; dirlist[i]; i++)
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{
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FAR const char *filename;
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/* Output a separated so that we can clearly discrinmate the output of
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* this program from the others.
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*/
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testheader(dirlist[i]);
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/* If the binary loader does not support the PATH variable, then
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* create the full path to the executable program. Otherwise,
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* use the relative path so that the binary loader will have to
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* search the PATH variable to find the executable.
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*/
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#ifdef CONFIG_LIB_ENVPATH
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filename = dirlist[i];
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#else
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snprintf(fullpath, 128, "%s/%s", MOUNTPT, dirlist[i]);
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filename = fullpath;
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#endif
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/* Execute the NXFLAT module
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*
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* NOTE: The standard posix_spawn() interface would be more correct.
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* The non-standard exec() function is used because it provides a
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* simple way to pass the symbol table information needed to load the
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* program. posix_spawn(), on the other hand, will assume that symbol
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* table information is available within the OS.
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*/
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args[0] = (FAR char *)dirlist[i];
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args[1] = NULL;
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ret = exec(filename, args, g_nxflat_exports, g_nxflat_nexports);
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if (ret < 0)
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{
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errmsg("ERROR: exec(%s) failed: %d\n", dirlist[i], errno);
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}
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else
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{
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message("Wait a bit for test completion\n");
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sleep(4);
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}
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}
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message("End-of-Test.. Exit-ing\n");
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return 0;
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}
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