Moxa IA3341-LX [16/72] Compiling hello c

IA3341 Linux User’s Manual Getting Started

2-8

Compiling Hello.c

The package CD contains several example programs. Here we use Hello.c as an example to show

you how to compile and run your applications. Type the following commands from your PC to

copy the files used for this example from the CD to your computer’s hard drive:

# cd /tmp/

# mkdir example

# cp –r /mnt/cdrom/example/* /tmp/example

To compile the program, go to the Hello subdirectory and issue the following commands:

#cd example/hello

#make

You should receive the following response:

[root@localhost hello]# make

/usr/local/arm-linux/bin/arm-linux-gcc –o hello-release hello.c

/usr/local/arm-linux/bin/arm-linux-strip –s hello-release

/usr/local/arm-linux/bin/arm-linux-gcc –ggdb -o hello-debug hello.c

[root@localhost hello]# _

Next, execute hello.exe to generate hello-release and hello-debug, which are described below:

hello-release—an ARM platform execution file (created specifically to run on the IA3341)

hello-debug—an ARM platform GDB debug server execution file (see Chapter 5 for details about

the GDB debug tool).

NOTE Since Moxa’s tool chain places a specially designed Makefile in the directory

/tmp/example/hello, be sure to type the #make command from within that directory. This

special Makefile uses the arm-linux-gcc compiler to compile the hello.c source code for the

Xscale environment. If you type the #make command from within any other directory, Linux

will use the x86 compiler (for example, cc or gcc).

Refer to Chapter 5 to see a Makefile example.

Uploading and Running the “Hello” Program

Use the following commands to upload hello-release to the IA3341 via FTP.

1. From the PC, type:

#ftp 192.168.3.127

2. Use the bin command to set the transfer mode to Binary mode, and then use the put command

to initiate the file transfer:

ftp> bin

ftp> put hello-release

3. From the IA3341, type:

# chmod +x hello-release

# ./hello-release

The word Hello will be printed on the screen.

root@Moxa:~# ./hello-release

Hello