CCS6 Linker Warning

From the warning, we know "libmath.a" is an index library, not a real library.  The real libraries need to be present in the same directory as libmath.a; is that the case?  If you are unsure about the expected names of the real libraries, execute the following command on libmath.a:

ar430 t libmath.a

[ Corrected -- Archaeologist ]

Did you mean "AR430 t libmath.a" ? Rather than "libc.a" ? This is the directory where libmath.a is located.

Yes, I meant libmath.a.  Are there other libraries in the same directory as libmath.a?

Here is the directory:

 Directory of C:\ti2\ccsv6\ccs_base\msp430\lib\4xx

05/05/2014  08:15 AM    <DIR>          .
05/05/2014  08:15 AM    <DIR>          ..
03/07/2014  05:20 AM             1,674 libmath.a
03/07/2014  05:20 AM           235,228 MSPMATHLIB_CCS_msp430_4xx_large_code_large_data.lib
03/07/2014  05:20 AM           235,192 MSPMATHLIB_CCS_msp430_4xx_large_code_restricted_data.lib
03/07/2014  05:20 AM           234,868 MSPMATHLIB_CCS_msp430_4xx_large_code_small_data.lib
03/07/2014  05:20 AM           234,868 MSPMATHLIB_CCS_msp430_4xx_small_code_small_data.lib
               5 File(s)        941,830 bytes
               2 Dir(s)  357,854,142,464 bytes free

The CPU is a MSP430F4794 by the way.

The problem is those libraries are built for MSP430X devices, not a MSP430 device like the one you are building for.  I informed the MSP430 team about this issue.  Since this is not related to the compiler, I will move this thread to the MSP430 forum.

Thanks and regards,

-George

What memory model(s) are you using to compile?  If you are not sure, post your complete compilation options.  You can find them in the build console log.

Here is the build command line:

-vmsp --abi=eabi --code_model=small --data_model=small -O0 --opt_for_speed=5 --include_path="C:/ti2/ccsv6/ccs_base/msp430/include" --include_path="C:/ti2/ccsv6/tools/compiler/msp430_4.3.1/include" --include_path="C:/Users/cbenson/Multi/Track-It 6700" --include_path="C:/Users/cbenson/Multi/Track-It 6700/inc" --include_path="C:/Users/cbenson/Multi/Track-It 6700/FatFS" -g --float_operations_allowed=none --gen_acp_xref --gcc --gen_acp_raw --define=__MSP430F4794__ --define=BOARD_REV=94 --define=MULTI --define=CCSV5 --verbose_diagnostics --diag_warning=225 --display_error_number --optimizer_interlist --remove_hooks_when_inlining --gen_opt_info=2 --printf_support=nofloat -k --c_src_interlist --asm_listing --output_all_syms --misra_advisory=suppress --misra_required=suppress

I am still waiting for an explanation from TI regarding this warning message.

Based on your commandline snapshot, you use small code and small data model. And for this combination, the library seems to be there. I expected it to be a combination like small code but large data model (which is not covered). Also, the path names and the path size seem to be okay. So I don’t know why the linker complains.
I somewhat disagree with the conclusion that it is not related to the compiler (linker) and belongs to the MSP430 forum, as it rather seems to be a problem with the mechanism of index library usage.

I had a similar problem with a project that used  F5438. In the file search path in MSP430 linker, I added "${CCS_BASE_ROOT}/msp430/lib/5xx_6xx_FRxx" (since it is a 5xx device). I guess a similar fix would work (have not tried it though) for other devices where you can select the directory accordingly.