Pierre Habraken <Pierre.Habraken@xxxxxxx> writes: > I want to compile gcc and newlib so that big endian code is generated > for newlib (this is for teaching purpose). > > Though I understand that multilib is activated by default, I do not need > the multilib option since I want 32 bits and big endian code only. > > The configure doc. (in INSTALL dir.) says that there is an option for > disabling biendian (BTW, does here "bi" mean "big" or "bi-" ?...), but > nothing for enabling it. > > I tried --enable-biendian : configure does not complain about it but > apparently does not take it in account. > > So my question is : What configure option I have to set up for gcc in > order to get newlib being cross-compiled to big endian code ? > > Has someone succeeded in doing that (with or without multilib support) ? I don't think there is any way to do that without patching the source. It's easy to patch the source to make -mbig-endian the default: change the definition of TARGET_DEFAULT to include ARM_FLAG_BIG_END. TARGET_DEFAULT is defined in config/arm/*.h; the exact definition depends upon your target. It is only slightly more work to add support for --with-endian to config.gcc. Ian
