Hello, If I build U-Boot natively on an A20-Olinuxino-Micro (sunxi) running Debian Jessie armhf, and the code includes certain operations such as division of a long long, I get this error:
$ make [...] LDS u-boot.lds LD u-boot ld.bfd: error: /usr/lib/gcc/arm-linux-gnueabihf/4.9/libgcc.a(bpabi.o) uses VFP register arguments, u-boot does not ld.bfd: failed to merge target specific data of file /usr/lib/gcc/arm-linux-gnueabihf/4.9/libgcc.a(bpabi.o) ld.bfd: error: /usr/lib/gcc/arm-linux-gnueabihf/4.9/libgcc.a(_divdi3.o) uses VFP register arguments, u-boot does not ld.bfd: failed to merge target specific data of file /usr/lib/gcc/arm-linux-gnueabihf/4.9/libgcc.a(_divdi3.o) ld.bfd: error: /usr/lib/gcc/arm-linux-gnueabihf/4.9/libgcc.a(_udivdi3.o) uses VFP register arguments, u-boot does not ld.bfd: failed to merge target specific data of file /usr/lib/gcc/arm-linux-gnueabihf/4.9/libgcc.a(_udivdi3.o) Makefile:1075: recipe for target 'u-boot' failed make: *** [u-boot] Error 1 $ I think this is because U-Boot has been built with the soft-float ABI, whereas my system only has a hard-float library. The relevant build option is set in arch/arm/config.mk: PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \ $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) The build works once I've removed the -msoft-float option. Would it be possible to refactor the configuration under arch/arm/ so that this option is not set for the platforms that don't need it? There was a brief discussion of this issue on the linux-sunxi mailing list suggesting it may have worked better in the past: On 28/12/14 16:15, Chen-Yu Tsai wrote: > It seems some recent changes in upstream broke building with hard float > toolchains. Best use soft float. > > It's probably these commits: > > bf1af3d ARM: merge commonly-defined PLATFORM_RELFLAGS > 3102274 ARM: refactor compiler options in config.mk ( https://www.mail-archive.com/linux-sunxi@googlegroups.com/msg09271.html ) Thanks very much, B.R. Oake. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot