Re: [ECOS] Error: .size expression for __restore_rt does not evaluate to a constant

[Ross Younger <ecos at impropriety dot org dot uk>]

On 01/06/11 14:15, Tom Schouten wrote:
> make[1]: Entering directory
> `/home/tom/ecos/src/build_synthetic/hal/synth/i386linux/v3_0_9'
> ...
> /tmp/ccCMyb7H.s: Assembler messages:
> /tmp/ccCMyb7H.s: Error: .size expression for __restore_rt does not
> evaluate to a constant
> /tmp/ccCMyb7H.s: Error: .size expression for __restore does not evaluate
> to a constant

I had a quick play with the trunk of the public hg tree, and while 
_something_ needs to be fixed for latest gcc, but I don't see your exact 
error. (I note in passing that your repository path suggests you are 
using eCosPro 3.0.9. You won't be able to get support for that here - I 
suggest you approach eCosCentric.)

On my system (ubuntu 10.10 on amd64, gcc version 4.4.5 (Ubuntu/Linaro 
4.4.4-14ubuntu5)) I can build eCos for the synthetic target out of the 
box, but not the tests:

[...]
make[1]: Entering directory `/tmp/ecosyn/hal/common/current'
gcc -L/tmp/ecosyn/install/lib -Ttarget.ld -o 
/tmp/ecosyn/install/tests/hal/common/current/tests/context 
tests/context.o -m32 -g -nostdlib -Wl,--gc-sections -Wl,-static
target.ld:33 cannot move location counter backwards (from 
000000000200ed20 to 00000000007f12e0)


I suspect that something subtle has changed in gcc's behaviour between 
versions. This will need input from somebody who knows more about linker 
magic than I do.


Ross

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