Added example for the elfloader on the MB851 platform, taken from sky-shell-exec example.

examples/mb851/shell-exec/Makefile

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+CONTIKI_PROJECT = shell-exec-test
+all: $(CONTIKI_PROJECT)
+
+TARGET=mb851
+COFFEE=1
+ELF_LOADER=1
+
+DEFINES=ELFLOADER_DATAMEMORY_SIZE=0x100,ELFLOADER_TEXTMEMORY_SIZE=0x100
+
+APPS = serial-shell
+PROJECT_SOURCEFILES = shell-exec.c
+CONTIKI = ../../..
+
+include $(CONTIKI)/Makefile.include
+
+%.shell-upload: %.ce
+	(echo; sleep 4; echo "~K"; sleep 4; \
+         echo "dec64 | write $*.ce | null"; sleep 4; \
+	 ../../../tools/base64-encode < $<; sleep 4; \
+         echo ""; echo "~K"; echo "read $*.ce | size"; sleep 4) | make login
+
+.PHONY: compile-executable upload-executable
+compile-executable: hello-world.ce
+	echo Compiled Contiki executable: $<
+	
+upload-executable: hello-world.shell-upload
+	echo Uploaded Contiki executable: $<

examples/mb851/shell-exec/README.txt

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+ELFloader and shell command 'exec' example for MB851 (STM32W) platform
+-----------------------------------------------------------
+
+Compiles the Contiki hello-world application as a Contiki executable (.ce).
+The Contiki executable is then uploaded to the MB851 platform via serial, and
+is stored in the filesystem.
+Finally, the executable is loaded via the shell command 'exec'.
+ 
+NOTE:
+You may have to reduce the ELF loader memory usage (/platform/sky/contiki-conf.h).
+Since hello-world uses very little memory:
+#define ELFLOADER_CONF_DATAMEMORY_SIZE 0x100
+#define ELFLOADER_CONF_TEXTMEMORY_SIZE 0x100
+
+
+1. Upload Sky shell with 'exec' command and symbols (requires several recompilations to generate correct symbols):
+> make
+> make CORE=shell-exec-test.mb851
+> make shell-exec-test.flash CORE=shell-exec-test.mb851 PORT=AUTO
+
+
+2. Verify access to the shell and the filesystem:
+> make login DEV=/dev/comX
+SHELL> echo hello shell
+SHELL> echo test | write mytest.txt
+SHELL> ls
+SHELL> read mytest.txt
+[CTRL-C] to exit the shell
+
+
+3. Upload Contiki executable hello-world.ce:
+> make upload-executable DEV=/dev/comX
+[CTRL-C] to exit the shell when the entire file has been uploaded (after ~30 sec)
+
+
+4. Verify that hello-world.ce exists in CFS:
+> make login DEV=/dev/comX
+SHELL> ls
+SHELL> read hello-world.ce | size
+The last command output should equal the size of hello-world.ce in this directory!
+
+
+5. Load and start hello world:
+SHELL> exec hello-world.ce
+The program should now start: the output 'Hello, World' appears.
+

examples/mb851/shell-exec/hello-world.c

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+/*
+ * Copyright (c) 2006, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ * $Id: hello-world.c,v 1.1 2010/12/15 15:33:30 salvopitru Exp $
+ */
+
+/**
+ * \file
+ *         A very simple Contiki application showing how Contiki programs look
+ * \author
+ *         Adam Dunkels <adam@sics.se>
+ */
+
+#include "contiki.h"
+
+#include <stdio.h> /* For printf() */
+/*---------------------------------------------------------------------------*/
+PROCESS(hello_world_process, "Hello world process");
+AUTOSTART_PROCESSES(&hello_world_process);
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(hello_world_process, ev, data)
+{
+  PROCESS_BEGIN();
+
+  printf("Hello, world\n");
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/

examples/mb851/shell-exec/shell-exec-test.c

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+/*
+ * Copyright (c) 2009, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ * $Id: shell-exec-test.c,v 1.1 2010/12/15 15:33:30 salvopitru Exp $
+ */
+
+#include "contiki.h"
+#include "shell.h"
+#include "serial-shell.h"
+
+#include "dev/watchdog.h"
+
+
+/*---------------------------------------------------------------------------*/
+PROCESS(shell_test_process, "Contiki shell");
+AUTOSTART_PROCESSES(&shell_test_process);
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(shell_test_process, ev, data)
+{
+  PROCESS_BEGIN();
+
+  serial_shell_init();
+  shell_file_init();
+  shell_coffee_init();
+  shell_text_init();
+  shell_exec_init();
+  shell_base64_init();
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/