Hi Wolfgang, On Thu, 22 Dec 2011 15:29:41 +0100 Wolfgang Denk <w...@denx.de> wrote:
> It appears that with recent versions of GCC the explicit > "-mhard-float" command line option takes precedence over the > ``asm(".gnu_attribute 4, 2");'' in the source file, so this no longer > helps to avoid the warnings we get when linking code that uses FP > instructions with other code that was built using soft-float. > > We can remove the ".gnu_attribute" (which appears to carry no other > information, at least so far) from the object files, but we also have > to make sure we don't pull in the __gcc_qsub() and __gcc_qmul() > functions from the standard libgcc, as these would again "infect" our > linking. We copy this code from: > gcc-4.2.2/gcc/config/rs6000/darwin-ldouble.c > This old version was chosen because it was still available under a > compatible license (GCC v2+). The file was stripped down to the > needed parts, and reformatted so it passes checkpatch with only one > warning (do not add new typedefs). > > Signed-off-by: Wolfgang Denk <w...@denx.de> > Cc: Kumar Gala <ga...@kernel.crashing.org> > Cc: Stefan Roese <s...@denx.de> > Cc: Andy Fleming <aflem...@gmail.com> > Cc: Kim Phillips <kim.phill...@freescale.com> Tested on TQM5200. Tested-by: Anatolij Gustschin <ag...@denx.de> Anatolij _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot