RE: [ECOS] error: no memory region specified for loadable section `.got'

["Chris Zimman" <czimman at bloomberg dot com>]

> we are trying to compile ecos with a later version than the default
> supplied arm toolset. Ecos compiles to a .a just fine, but then the
> final compile/link (in this case the example "hello.c") fails with
> the error:
> 
>
=============================================================================
==
> C:\projects\ecos_examples>arm-unknown-linux-gnu-gcc -nostartfiles
-Lc:/projects/
> ecos_test/install/lib -Ttarget.ld -static -mcpu=arm7tdmi -Wl,--gc-sections
-Wl,-
> static -g -nostdlib -o hello.elf hello.o
>
/home/samiam/opt/crosstool/gcc-4.1.0-glibc-2.3.2/arm-unknown-linux-gnu/lib/gc
c/a
> rm-unknown-linux-gnu/4.1.0/../../../../arm-unknown-linux-gnu/bin/ld: error:
no m
> emory region specified for loadable section `.got'
> collect2: ld returned 1 exit status
>
> C:\projects\ecos_examples>
>
=============================================================================
==
>
> As you can see, we are trying the gcc 4.1.0 compiler.
> 
> So far, all we have seen is that .got implies "position independent code"
mode.
> I didn't see an option to turn this mode off, we don't need or want it.

Hi Scott,

There are a couple of problems here as far as I can see.  First, you should
be using arm-elf-gcc, not arm-linux-gcc.  Second, I have had mixed experience
trying to use GCC 4.x with eCos.  We had problems with it -- basically code
would sometimes crash for no apparent reason that would work fine under
3.4.4.  I didn't have any particularly compelling reason to move to 4.x so
we've elected to stay with 3.4.4 for the time being.

--Chris

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