C66x linker can't find assembly file function with "_" prefix

Eddie3909

C6678 for one product

C6274 for the other product

CCSv5

CGT 7.4.4 and 7.6

When we built the files for the C6472 Coeff, CCS's CGT would link assembly file (.sa) that have functions with the prefix "_" (Eg "_foo").

But when we build for the C6678 EABI, CCS's CGT can't find these .sa functions. We have to remove the "_" prefix.

Since we'd like to use the assembly files in both products, is there a compiler flag we have to set for EABI in order to make it accept the "_" prefix?

Cheers2u

Eddie

over 10 years ago

0 Raja over 10 years ago

TI__Guru* 81335 points

Hi Eddie,
Moving this thread over Compiler forum for faster response. Thank you for your patience.

0 George Mock over 10 years ago

TI__Guru**** 251230 points

When you build for C6472, the default ABI is COFF ABI. When you build for C6678, the default ABI is EABI. How the compiler emits the names of global symbols is different between these two ABI's. Please see this wiki article for the details, including recommended methods for automatically handling this difference.

Thanks and regards,

-George

0 Eddie3909 over 10 years ago in reply to George Mock

Guru 10385 points

Thanks George. Using the compiler --strip_coff_underscore option worked great.

Cheers
Eddie

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C66x linker can't find assembly file function with "_" prefix