/****************************************************************************
* system/prun/pexec_main.c
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <assert.h>
#include <errno.h>
#include <apps/prun.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifndef CONFIG_SYSTEM_PEXEC_VARSTACKSIZE
# define CONFIG_SYSTEM_PEXEC_VARSTACKSIZE 1024
#endif
#ifndef CONFIG_SYSTEM_PEXEC_STRSTACKSIZE
# define CONFIG_SYSTEM_PEXEC_STRSTACKSIZE 128
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
static void show_usage(FAR const char *progname, int errcode)
{
fprintf(stderr, "USAGE: %s [OPTIONS] <filename>\n", progname);
fprintf(stderr, "\nWhere:\n");
fprintf(stderr, "\t<filename> is the full path to the P-Code file to be executed\n");
fprintf(stderr, "\nand OPTIONS include the following:\n");
fprintf(stderr, "\t-v <varsize>: Variable memory size to use. Default: %d\n",
CONFIG_SYSTEM_PEXEC_VARSTACKSIZE);
fprintf(stderr, "\t-s <strsize>: String stack size to use. Default: %d\n",
CONFIG_SYSTEM_PEXEC_STRSTACKSIZE);
fprintf(stderr, "\t-h: Show this text and exit\n");
exit(errcode);
}
/****************************************************************************
* Public Functions
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, FAR char **argv)
#else
int pexec_main(int argc, FAR char **argv)
#endif
{
FAR char *filename = NULL;
FAR char *endptr;
long varsize = CONFIG_SYSTEM_PEXEC_VARSTACKSIZE;
long strsize = CONFIG_SYSTEM_PEXEC_STRSTACKSIZE;
long tmp;
int option;
int ret;
/* Parse input parameters */
while ((option = getopt(argc, argv, ":v:s:h")) != ERROR)
{
switch (option)
{
case 'h':
show_usage(argv[0], EXIT_SUCCESS);
break;
case 'v':
tmp = strtol(optarg, &endptr, 10);
if (tmp < 0)
{
fprintf(stderr, "ERROR: Variable memory size out of range: %ld\n", tmp);
show_usage(argv[0], EXIT_FAILURE);
}
else
{
varsize = tmp;
}
break;
case 's':
tmp = strtol(optarg, &endptr, 10);
if (tmp < 0)
{
fprintf(stderr, "ERROR: String stack size out of range: %ld\n", tmp);
show_usage(argv[0], EXIT_FAILURE);
}
else
{
strsize = tmp;
}
break;
case ':':
fprintf(stderr, "ERROR: Missing required argument\n");
show_usage(argv[0], EXIT_FAILURE);
break;
default:
case '?':
fprintf(stderr, "ERROR: Unrecognized option\n");
show_usage(argv[0], EXIT_FAILURE);
break;
}
}
/* There should be one final parameters remaining on the command line */
if (optind >= argc)
{
fprintf(stderr, "ERROR: Missing required <filename> argument\n");
show_usage(argv[0], EXIT_FAILURE);
}
filename = argv[optind];
optind++;
if (optind < argc)
{
fprintf(stderr, "ERROR: Garbage at the end of the command line\n");
show_usage(argv[0], EXIT_FAILURE);
}
/* Execute the P-Code file */
ret = prun(filename, varsize, strsize);
if (ret < 0)
{
int errval = errno;
DEBUGASSERT(errval > 0);
fprintf(stderr, "ERROR: P-Code execution failed: %d %d\n", ret, errval);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}