[ECOS] problems compiling host tools

[Jonathan Larmour]

Aldo Dolfi wrote:
> Thank you for the answer.
> 
> I made some tries, but I did not get what exactly you meant by starting 
> from 1.3.1 and upgrading to CVS.
> If I run cvs checkout in the 1.3.1 tree I get errors that say a lot of 
> files are in the way. Updating is not possible either because that tree 
> has not CVS directories.

You have to check out to an empty directory.

> Anyway, I found out that the normal cvs co described in the site does 
> not check out the host directory. I had to check it out separately. I 
> was able to compile the host tools.

You could have just downloaded prebuilt host tools from the web page I 
quoted I'm afraid!

 > Then, in a separate directory
> (jessica) and I ran
> ecosconfig new pc
> ecosconfig tree
> make
> and this went on without pb.
> In a new directory (jessica2) I tried to build the hello.c example. I did
> SRCS=hello.c DST=hello ../ecos-cvs/examples/build_Makefile ../jessica
> and then
> make
> 
> and I got the linking errors in the attached file. [snip]
 > 
/home/dolfi/ecos/jessica/install/lib/libtarget.a(kernel_thread.o)(.text._Z41__static_initialization_and_destruction_0ii+0x2b): 
In function `__static_initialization_and_destruction_0(int, int)':
/home/dolfi/ecos/jessica/install/include/cyg/kernel/thread.inl:254: 
undefined reference to `__dso_handle'


This is odd. This implies eCos was built without "-fno-exceptions 
-fno-rtti". But unless you changed the configuration to use different 
flags (as the commands you wrote above indicate) that really shouldn't happen.

How did you build the i386-elf-gcc? Or where did you get it from?

Jifl
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