Hello people, I have a custom build module with some float operations in it. I build a 2.4.17 kernel for a mips32 core (BCM6348 chip). It boots up fine, busybox works nicely, also some other apps like dropbear and thttpd do what they are expected to do. I build everything with soft-floats using a uclibc toolchain (kernel + filesystem). This is the configuration of my toolchain. ~#mips-linux-gcc -v Reading specs from /vobs/linux/tools/3pp-build/gcc/../../mips/gcc/lib/gcc-lib/mips-linux-uclibc/3.3.4/specs Configured with: /vobs/linux/tools/3pp-build/gcc/toolchain_build_mips_nofpu/gcc-3.3.4/configure --prefix=/vobs/linux/tools/3pp-build/gcc/../../mips/gcc --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=mips-linux-uclibc --enable-languages=c,c++ --enable-shared --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-nls --enable-multilib --without-float --enable-sjlj-exceptions Thread model: posix gcc driver version 3.3.4 executing gcc version 3.3.3 The module builds fine also, but when insmodding I get the following error. insmod: unresolved symbol __fixdfsi insmod: unresolved symbol __floatsidf insmod: unresolved symbol __muldf3 insmod: unresolved symbol __adddf3 As these are all float operations I am wondering about the following things: 1.why they are in there? I have a soft-float toolchain.... 2.Is there float support in the kernel? While googling for it I found a few things talking about FP point in the kernel. Does it have something to do with the Algorithmics/MIPS FPU emulator. (Although it does not work emulator or not. Which I expected because it should only be used by apps which emit FPU calls, and this should not happen because I use a softfloat toolchain). So I expect it does not really have something to do with this. 3.I took care of using the same compiler options as the kernel compilation uses. I guess this is the correct way, and the problems are thus not related to this. Any pointers to a solution would be helpful. I am trying woth a hard-float toolchain now (it only takes a while to compile everything). I could also not dig up anything similar in the archives. Thank you, Philippe | Philippe De Swert -GNU/linux - uClinux freak- | | Stag developer http://stag.mind.be/ | Emdebian developer: http://www.emdebian.org | | Please do not send me documents in a closed format. (*.doc,*.xls,*.ppt) | Use the open alternatives. (*.pdf,*.ps,*.html,*.txt) | Why? http://pallieter.is-a-geek.org:7832/~johan/word/english/ ------------------------------------------------------- NOTE! My email address is changing to ... @scarlet.be Please make the necessary changes in your address book.
