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Compiling libgcc not optimized

EnricoTabanelli

Good moorning,

I am trying to compile libgcc for arm-none-eabi target from scratch, since I need to compare Floating Point SW emulation on an ARM Cortex-M4 and Risc-V based processors. The problem is that by default GCC includes the optimized version of FP SW emulation functions which is ieee754-sf.S. 

Does anyone knows how to exclude ieee754-sf.S in the libgcc compilation process? In particular how to configure GCC?

Thanks,

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    When configuring libstdc++, you'll have to configure the entire gccsrcdir directory. Consider using the toplevel gcc configuration option --enable-languages=c++Specify the installation directory for the executables called by users (such as gcc and g++ ). The default is exec-prefix /bin . Specify the installation directory for object code libraries and internal data files of GCC. The default is exec-prefix /lib .

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    When configuring libstdc++, you'll have to configure the entire gccsrcdir directory. Consider using the toplevel gcc configuration option --enable-languages=c++Specify the installation directory for the executables called by users (such as gcc and g++ ). The default is exec-prefix /bin . Specify the installation directory for object code libraries and internal data files of GCC. The default is exec-prefix /lib .

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