Added exec()
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1979 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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29899e1069
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@ -810,8 +810,9 @@
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typical embeddd system.
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* sched/: Added gettimeofday(). This implementation is simply a thin
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wrapper around clock_gettimer().
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* lib/: Add gmtime() and localtime()
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* lib/: Add gmtime(), localtime(), and strftime()
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* binfmt/: Add exec(). This is just a wrapper that executes both
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load_ and exec_module() in a more familiar manner. It is not consistent
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with more standard exec() functions, however, because (1) it returns
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and (2) it requires symbol table arguments.
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@ -8,7 +8,7 @@
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<tr align="center" bgcolor="#e4e4e4">
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<td>
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<h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
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<p>Last Updated: July 11, 2009</p>
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<p>Last Updated: July 12, 2009</p>
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</td>
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</tr>
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</table>
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@ -1483,7 +1483,11 @@ nuttx-0.4.10 2009-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
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typical embeddd system.
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* sched/: Added gettimeofday(). This implementation is simply a thin
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wrapper around clock_gettimer().
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* lib/: Add gmtime() and localtime()
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* lib/: Add gmtime(), localtime(), and strftime()
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* binfmt/: Add exec(). This is just a wrapper that executes both
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load_ and exec_module() in a more familiar manner. It is not consistent
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with more standard exec() functions, however, because (1) it returns
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and (2) it requires symbol table arguments.
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nuttx-0.4.10 2009-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
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@ -48,11 +48,11 @@ endif
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BINFMT_ASRCS =
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BINFMT_CSRCS = binfmt_globals.c binfmt_register.c binfmt_unregister.c \
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binfmt_loadmodule.c binfmt_unloadmodule.c binfmt_execmodule.c \
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binfmt_dumpmodule.c
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binfmt_exec.c binfmt_dumpmodule.c
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SYMTAB_ASRCS =
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SYMTAB_CSRCS = symtab_findbyname.c symtab_findbyvalue.c \
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symtab_findorderedbyname.c symtab_findorderedbyvalue.c
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symtab_findorderedbyname.c symtab_findorderedbyvalue.c
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SUBDIRS = libnxflat
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@ -0,0 +1,125 @@
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/****************************************************************************
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* binfmt/binfmt_exec.c
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*
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* Copyright (C) 2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <sys/types.h>
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#include <string.h>
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#include <sched.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/binfmt.h>
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#include "binfmt_internal.h"
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#ifndef CONFIG_BINFMT_DISABLE
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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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: exec
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*
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* Description:
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* This is a convenience function that wraps load_ and exec_module into
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* one call.
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*
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* Input Parameter:
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* filename - Fulll path to the binary to be loaded
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* argv - Argument list
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* exports - Table of exported symbols
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* nexports - The number of symbols in exports
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*
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* Returned Value:
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* This is an end-user function, so it follows the normal convention:
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* Returns the PID of the exec'ed module. On failure, it.returns
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* -1 (ERROR) and sets errno appropriately.
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*
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****************************************************************************/
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int exec(FAR const char *filename, FAR const char **argv,
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FAR const struct symtab_s *exports, int nexports)
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{
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struct binary_s bin;
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int ret;
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int i;
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memset(&bin, 0, sizeof(struct binary_s));
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bin.filename = filename;
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bin.exports = exports;
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bin.nexports = NEXPORTS;
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ret = load_module(&bin);
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if (ret < 0)
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{
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bdbg("ERROR: Failed to load program '%s'\n", dirlist[i]);
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return ERROR;
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}
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ret = exec_module(&bin, 50);
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if (ret < 0)
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{
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bdbg("ERROR: Failed to execute program '%s'\n", dirlist[i]);
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unload_module(&bin);
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return ERROR;
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}
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return ret;
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}
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#endif /* CONFIG_BINFMT_DISABLE */
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@ -85,7 +85,7 @@ struct binfmt_s
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};
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/****************************************************************************
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* Public Functions
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* Public Data
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****************************************************************************/
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#undef EXTERN
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@ -96,6 +96,10 @@ extern "C" {
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: register_binfmt
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*
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@ -173,6 +177,29 @@ EXTERN int unload_module(FAR const struct binary_s *bin);
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EXTERN int exec_module(FAR const struct binary_s *bin, int priority);
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/****************************************************************************
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* Name: exec
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*
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* Description:
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* This is a convenience function that wraps load_ and exec_module into
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* one call.
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*
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* Input Parameter:
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* filename - Fulll path to the binary to be loaded
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* argv - Argument list
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* exports - Table of exported symbols
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* nexports - The number of symbols in exports
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*
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* Returned Value:
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* This is an end-user function, so it follows the normal convention:
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* Returns the PID of the exec'ed module. On failure, it.returns
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* -1 (ERROR) and sets errno appropriately.
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*
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****************************************************************************/
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EXTERN int exec(FAR const char *filename, FAR const char **argv,
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FAR const struct symtab_s *exports, int nexports);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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