Re: [ECOS] Trying to Debug Ecos using GDB

[Andrew Lunn <andrew at lunn dot ch>]

On Wed, Apr 12, 2006 at 01:39:24PM -0400, Fahd Abidi wrote:
> Hello,
> 
> I am using a BDI2000 JTAG emulator and am trying to debug the ecos
> kernel at its startup and low level functions. I am getting stuck and a
> very early point In the process, the Kernel Builds fine using the cygwin
> based tools I got from ecos.sourceware.org and I have a libtarget.a file
> created that has debug symbols in it. However I have been unable to read
> the debug symbols from the file into gdb.
> 
> Using objdup -g to display the debug info says that the .o files
> included have no recognized debugging info.
> 
> However using objdump-S shows that I do have source code intermixed with
> the disassembly so it does find source code and hence must have the
> debug info built in.
> 
> Using objcopy to strip the debug symbols takes the 16mb libtarget.a file
> to 1.7mb so I am convinced the debug symbols are in the file.
> 
> If I try and open libtarget.a with GDB6.3&4 I get an error saying "error
> not in executable format".

This is correct. libtarget.a is a library, not an application. 

You need to link the library to your application to form a complete
system image. Then boot that image.

        Andrew

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss