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samples: nano: add a true hello world sample

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This sample just prints 'Hello World', Nothing else.

Change-Id: I93af3fdc2de342e878bc038f937e7f1ad2231bd3
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This commit is contained in:
Anas Nashif 2015-12-18 09:49:11 -05:00
commit 14050f1a3f
5 changed files with 78 additions and 0 deletions
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5
samples/nanokernel/apps/hello_world/Makefile Normal file
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KERNEL_TYPE = nano
BOARD ?= qemu_x86
CONF_FILE = prj.conf
include ${ZEPHYR_BASE}/Makefile.inc

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samples/nanokernel/apps/hello_world/README.txt Normal file
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Title: Synchronisation
Description:
A simple 'Hello World' application.
--------------------------------------------------------------------------------
Building and Running Project:
This nanokernel project outputs to the console. It can be built and executed
on QEMU as follows:
make qemu
--------------------------------------------------------------------------------
Troubleshooting:
Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:
make clean # discard results of previous builds
# but keep existing configuration info
or
make pristine # discard results of previous builds
# and restore pre-defined configuration info
--------------------------------------------------------------------------------
Sample Output:
Hello World!

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samples/nanokernel/apps/hello_world/prj.conf Normal file
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# nothing yet

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samples/nanokernel/apps/hello_world/src/Makefile Normal file
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obj-y += main.o

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samples/nanokernel/apps/hello_world/src/main.c Normal file
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/*
* Copyright (c) 2012-2014 Wind River Systems, Inc.
*
* Licensed 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.
*/
#include <zephyr.h>
#if defined(CONFIG_STDOUT_CONSOLE)
#include <stdio.h>
#define PRINT printf
#else
#include <misc/printk.h>
#define PRINT printk
#endif
/*
* @file
* @brief Hello World demo
* Nanokernel version of hello world demo
*/
void main(void)
{
PRINT("Hello World!\n");
}