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ARM7 GCC 4.4.2 eh_frame problem

Posted by KiwiEd on March 10, 2010
I have recently upgraded to OpenRTOS v6.0.3 and yagarto gcc 4.4.2 my previous project (ARM7_AT91SAM7X256_Eclipse) now works well. Now wishing to use lwip, I've chosen lwIP_Demo_Rowley_ARM7. Problem is that on compiling I get these three errors:
1) rtosdemo.elf section '.eh_frame' will not fit in region ram
2) region 'ram' overflowed by 200 bytes.
3)In function '_sbrk_r'
undefined reference to '_sbrk'

When I decreased one of MY buffers to a smaller value the error for #1 became "region 'ram' overflowed by -150 bytes", how can it overflow in the negative?
Are errors #2 and #3 releated in any way?

Thanks.

RE: ARM7 GCC 4.4.2 eh_frame problem

Posted by Dave on March 10, 2010
The Yagarto home page contains details of how to fix these errors.

RE: ARM7 GCC 4.4.2 eh_frame problem

Posted by KiwiEd on March 10, 2010
Yes, I looked at that before posting, the .eh_frame error is not that its missing - but that its overflowing!


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