Math lib inclusion in BSP

[Daniel Gutson]

On Thu, Sep 24, 2015 at 4:49 PM, sudarshan.rajagopalan
<sudarshan.rajagopalan at vecna.com> wrote:
> Hey all,
>
> We are developing a new BSP that uses math.h in few of the BSP files. I do

May I ask why do you need floating point operations in a kernel? At
least, what sort of operations and why not move them upwards.

> understand that the math library functions are not part of standard C
> library and has to be linked using "-lm". So I include "LD_LIBS  += -lm" in
> the custom .cgf config file but this doesn't seem to work. I think this has
> to be linked in a proper order. Could someone help with this?
>
> Heres the custom config file:
>
> include $(RTEMS_ROOT)/make/custom/default.cfg
>
> RTEMS_CPU = arm
>
> LD_LIBS += -lm
>
> CPU_CFLAGS = -march=armv7-m -mthumb
>
> CFLAGS_OPTIMIZE_V = -O0 -g -mfloat-abi=hard -mfpu=fpv4-sp-d16
>
> Thanks and Regards,
> Sudarshan
> _______________________________________________
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> devel at rtems.org
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Daniel F. Gutson
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