sparc-rtems4.7-gcc versus fpu

[Peter A. Krauss]

Hello,

I have downloaded sparc-rtems4.7 and would like to use it for a leon2 target with fpu. I am puzzled on how the compiler inserts fpu instructions. My summary is:

- The compiler does insert fpu instructions, if no fpu command line option is given or if "-mhard-quad-float" is used.

- The compiler does not insert fpu instructions, if "-mfpu" or "-mhard-float" is used.

Why?


Peter


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