hello world "killed" on beaglebone

Phillip Norisez

Other Parts Discussed in Thread: AM3359

I searched a number of different keywords looking for help on this without result, so I decided to post this appeal for help.

I am using a Beaglebone as a development target while our custom board is under design. I used CCS 5.1.1.00033 to build a Generic CortexA8 Device executable for the HelloWorld project. I then downloaded the resulting hello.out file to the root directory of my 'bone using tftp (Host as client, 'bone as server). When I try running the file, all I see on the console is the single word "Killed". Compiler version TI v4.9.1 producing eabi(ELF). More info on request. Help appreciated very much.

over 13 years ago

0 Hongfeng Wang over 13 years ago

Genius 3925 points

You can install gdb on your target system, then use gdb to debug it.

For comparison purpose, you can install gcc and the tool chain on the target and build your application there.

0 Phillip Norisez over 13 years ago in reply to Hongfeng Wang

Intellectual 710 points

I get the same result from a hello.out built with CCS 5.3.0.00090 as AM3359 [Cortex A] executable on the TI v5.01 compiler.and linker commands from the AM3359.cmd file that came with CCS.

I am using gdbserver. When I fire it up I get:

    Process hello.out created; pid = 1579

    Child terminated with signal = 0x9 (SIGKILL)
    No program to debug. GDBserver exiting.

So it is being killed before getting a chance to start. It seems to me like hello.out is not a compatible executable file.

I will now try to locate a copy of the toolchain to put on the 'bone. This is going to take a while.

Meanwhile, the questions: Am I wasting my time? Does CCS even support cross development for Beaglebone?

All I have are free downloads of CCS. Do I need a paid copy of CSS?

0 Hongfeng Wang over 13 years ago in reply to Phillip Norisez

Genius 3925 points

as I remember if target arch is wrong, it should give error like "cannot execute binary".

You can always verify your binary using readelf on your host PC.

did you enable the -g option when you compile the code?

0 Phillip Norisez over 13 years ago in reply to Hongfeng Wang

Intellectual 710 points

Reaqdelf gives no error.

What is -g option? I can only manipulate the compiler options that CCS lets me change, and I haven't located it in the list.

0 Phillip Norisez over 13 years ago in reply to Phillip Norisez

Intellectual 710 points

CCS, in all its forms, Windows, Linux, 5.1 or 5.3 can't seem to generate a file containing executable code for my Beaglebone. I don't think it's the kernel either, because the program doesn't work in the Linux sent with the bone either.

0 Siddharth Heroor over 13 years ago

TI__Expert 4245 points

Hi Phillip,

Are you using TI compiler to write a hello world program that runs on Linux and you are debugging using gdbserver? I'm not sure that's correct.

Why don't you use GCC that comes with Linux SDK instead? The TI compiler is probably generating bare metal .out rather than a Linux program i.e eabi whereas Linux is gnueabi. If you are trying bare metal programming i.e without Linux running on the target, then you should be able to load the .out via JTAG and run/debug using CCS itself.

0 Phillip Norisez over 13 years ago in reply to Siddharth Heroor

Intellectual 710 points

Thanks, Sid! That was the hint I needed. When I reinstalled CCSv5.1.0.00033 using the instructions in http://processors.wiki.ti.com/index.php/Code_Composer_Studio_v5_Users_Guide and built my helloworld it works!

However, I also received the same messages documented by Rajah's "Linker message when compiling example application" post in the Sitara™ ARM® Microprocessors forum.

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hello world "killed" on beaglebone