Dear Kyle Moffett, In message <1298479238-22114-1-git-send-email-kyle.d.moff...@boeing.com> you wrote: > Standard Debian powerpc and powerpcspe systems only include hard-float > libgcc in their native compilers, which causes scary build warnings when > building U-Boot. > > Debian and other PowerPC-supporting distributions used to provide libgcc > and other libraries in a "nof" (soft-float) form in the "multilib" > packages. As they were completely unused by the distribution and > therefore tended to be very buggy it was decided to save some time on > the part of the maintainers and build-servers by removing them. > > Admittedly, right now the linker warnings do not indicate any problems, > as the included routines do not use any floating point at all. > > The concern is that if floating-point code were ever added it might > cause hard-float code to be unexpectedly included in U-Boot without > generating a hard error. This would cause unexplained crashes or > indeterminate results at runtime. > > The easiest way to resolve this is to borrow the routines that U-Boot > needs from the Linux kernel, which has the same issue. > > Specifically, the routines are: _ashldi3(), _ashrdi3(), and _lshrdi3().
Sorry, but I cannot follow your logic. First, we do not use floating point in U-Boot. We don't. Period. [The only exception being well-designed and hand-crafted assemby code where it is unavoidable - for example in the POST code to test the FPU, or for certain atomic 64 bit stores]. So FP support should never be a reason for such a change. What confuses me completely is why you then add some shift functions, which are completely unrelated to FP operations. [I think I know what you mean, but your explanation is confusing and should be fixed.] Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de There are 2 Kinds of planes: Fighters, and targets. There are 2 Kinds of boats: Submarines, and targets. There are 2 Kinds of 4x4's: Jeeps and SOB's (Some other brand) There are 2 Kinds of OS's: Unix, and brain-farts. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
