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[ts-7000] Re: Unable to get hello world file to work on TS-7800

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Subject: [ts-7000] Re: Unable to get hello world file to work on TS-7800
From: "charliem_1216" <>
Date: Mon, 04 Aug 2008 20:54:06 -0000
Hi Eric, 

--- In  "eric.robishaw" <> wrote:
>
> Did you ever figure out the solution?
> I"m having a similar issue.
> 
> 
> 
> 
> In  "lee.weihong" <lee.weihong@> wrote:
> >
> > Hi,
> > I am new to Linux and have just gotten a ts-7800 recently. So today I
> > set up the CodeSourcery g++ compiler and eclipse on my windows

Uh-Oh, I don't have a TS-7800, and I don't use eclipse or windows, but ...

> > computer, and tried to compile a hello world project. Everything went
> > smoothly until i tried running the file on the ts. I got this
message: 
> > -bash: ./hello: No such file or directory
> > 
> > I did a quick search on this group and found that some people had
> > similar problems before. What I did was to use a SD card to transfer
> > the file from my pc to the ts board, and i appended the flags -static
> > to my gcc.
> > 
> > This is the output from the console in eclipse:
> > **** Build of configuration Default for project hello ****
> > 
> > cs-make all 
> > arm-none-linux-gnueabi-gcc -O2 -g -Wall -fmessage-length=0 -static  
> > -c -o hello.o hello.cpp

This line specifies static linking, but there is no linking done in
this step, only compiling.  This step only compiles hello.cpp into the
object file hello.o

> > arm-none-linux-gnueabi-gcc -o hello hello.o 

This line links hello.o into an executable file, hello, and since
there is no -static here, a dynamic executable is created.

> > 
> > And this is what i got when i run "file ./hello" on my ts:
> > ./hello: ELF 32-bit LSB executable, ARM, version 1 (SYSV), for
> > GNU/Linux 2.6.14, dynamically linked (uses shared libs), not stripped
> >  

So this confirms that ./hello is dynamically linked.  The 'no
such file' probably refers to the shared library file that the
executable is looking for but cannot find.  

You can use 'ldd ./hello' to find out about shared libs required for
hello.

You can use 'strace ./hello' to (confirm) what file is not found.

You can add -static to the second gcc above and get ./hello to run. 
While it is OK for small programs and testing, static is probably not
a good long-term approach.

Regards, ........ Charlie

> > I am sure I did something wrong, and any hints for a linux newbie will
> > be appreciated
> >
>



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