Enable VPF libraries (hard) with arm-gcc

Question

I'm trying to build an application that links a library that is built with VFP . I have added the flags -mfpu=fpv4-sp-d16 -mfloat-abi=hard to my arm-gcc command, but it complains about that the standard C library ( libm.a and the like) is not built using VFP .

I have noticed that in my arm-gcc toolchain directory, in lib , there is a folder called hard which is supposed to contain the arm standard C libraries built with VFP .

How can I make this library folder the standard one for the arm toolchain?

Answer 1

It seems that I had some missing flags. Below I list all of them:

-mcpu=cortex-m7 -mthumb -mabi=aapcs -mfpu=fpv5-d16 -mfloat-abi=hard