On 10/13/2011 07:33 AM, Mike Frysinger wrote: > it seems that these symbols are usually implemented in the C library on sparc > systems, but under u-boot, we don't have that luxury. Linux itself simply > imports the relevant asm files from glibc into their lib subdir. without > these, building u-boot for sparc targets with sparc linux compilers fail. any > desire to make this work ? or just continue to force everyone to install a > dedicated sparc-elf compiler ? > -mike
The .udiv/.rem ... functions are implemented by libgcc, an suggested implementation is given in the SPARCv8 Appendix E. The functions are needed when compiling for SPARCv7 CPUs which doesn't have a hardware multiplier/divider instead they are implemented in software, SPARCv8 CPUs have multiplier/divider in hardware so .mul/.rem etc is not needed. One can switch between V7 or V8 compatible code by adding -mv8 (GCC 3.4.4 or earlier) or -mcpu=v8 (in newer GCC). Sparc-linux toolchains will generate ELF binaries for Linux, that is not what we want? Daniel _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
