I originally asked this question on the gcc-help@ mailing list, but I have yet to receive a response. http://gcc.gnu.org/ml/gcc-help/2010-11/msg00211.html So I am going to ask this question again here. Also, I am just looking for understanding of why -lfloat is in an oabi toolchain. I don't expect a gcc commit to come from this discussion. .... I noticed that arm oabi is still using -lfloat in LIBGCC_SPEC in gcc/config/arm/linux-elf.h Looking around for libfloat, I found: http://netwinder.osuosl.org/users/s/scottb/public_html/notes/FP-Notes-6.html http://netwinder.osuosl.org/users/s/scottb/ Which hasn't had a release since 1999, with a patch in 2000. libgcc should provide these most of these soft float symbols. Then I also notice the gcc/config/soft-fp is available, but only used for armv6m. If we don't get these symbols from gcc, then we get them from (e)glibc's soft-fp? This does not affect eabi, because the gcc/config/arm/linux-eabi.h unsets LIBGCC_SPEC. The reason I am bringing this up, is to validate a couple variants of the same patch that has been floating around since about gcc 3.3: http://kegel.com/crosstool/crosstool-0.43/patches/gcc-3.4.4/gcc-3.4.0-arm-nolibfloat.patch and a newer version of this patch which adds more functions to lib1asmfuncs (in libgcc?). http://git.buildroot.net/buildroot/tree/toolchain/gcc/4.5.1/810-arm-softfloat-libgcc.patch Any help in understanding why this is still here will be very helpful. Thanks in advance, -Bryan
