Re: mspg++ and c++ includes

Hello,

On Mon, 10 Jun 2013 17:23:00 -0700
Thomas Taranowski <[email protected]> wrote:

> Thanks for the comment Paul.  What are you using for your compiler
> flags?  I'm having a couple issues with mine.
> 
> I'm currently using the following:
> -ffunction-sections -fdata-sections -DGCC_MSP430 -Wall -fno-exceptions
> -fno-rtti -fno-enforce-eh-specs -nodefaultlibs

Well, I'm using:

msp430-g++ -I../include/   -mmcu=msp430g2553 -O1 -g -Wreturn-type -ffunction-sections -fdata-sections -DHW_CONFIG=\"hw_config_msp430.hpp\" -fno-exceptions -c blink.cpp -o bin-msp430/blink.o
msp430-gcc -mmcu=msp430g2553 -Wl,--gc-sections -Wl,-Map=bin-msp430/blink.map,--cref  bin-msp430/blink.o   -o bin-msp430/blink

(I was shocked to see that Energia doesn't pass -fno-exceptions, but I
myself don't pass -fno-rtti, that needs to be fixed).

> 
> This works well in with -O2 specified (release build), but fails with
> memset undefined when running my -O0 debug build.  Presumably the
> optimized version is using the built-in library.  Also, I can't seem
> to get printf back in by adding -lgcc -lc.to the linker flags, as I
> think these get ignored after specifying the -nodefaultlibs argument.
> I really want something to just disable the libstdc++ include.
> Thomas Taranowski | 425-442-9209 | skype: thomas.taranowski |
> baringforge.com
> 

-- 
Best regards,
 Paul                          mailto:[email protected]

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