Hi Richard, Do you know how to hack the build system properly to exclude the optimized routines? Enrico ________________________________ From: Richard Earnshaw <Richard.Earnshaw@xxxxxxxxxxxx> Sent: Thursday, December 3, 2020 12:59 PM To: Enrico Tabanelli <enrico.tabanelli3@xxxxxxxx>; gcc-help@xxxxxxxxxxx <gcc-help@xxxxxxxxxxx> Subject: Re: Builiding not optimized Libgcc for ARM Cortex-M4 target On 24/11/2020 20:47, Enrico Tabanelli via Gcc-help wrote: > Good morning, > > I am trying to compile Libgcc for the ARM Cortex-M4 target from scratch since I need to compare Floating Point SW emulation on an ARM Cortex-M4 and Risc-V based processors. By default, GCC includes an optimized version of the FP SW emulation routines, ieee754-sf.S, which is included in the ARM back-end of Libgcc. For my work, I would like to use the basic routines included in libgcc/softfp. > Does anyone know how to exclude ieee754-sf.S in the libgcc building process? In particular, how to configure GCC and if there is something to change inside the ARM back-end? > > Thanks, > Enrico Tabanelli > I think you'd need to hack the build system. I'm not aware of any standard configuration hooks to do this. R.
