On Wednesday 18 December 2002 10:57 am, you wrote: > I am working on the embedded linux system on bug endian mips (mips-linux). > As I understand, I need to get the cross-compiler work on my linux-i686 > host (redhat 7.2). > Following the Bradly's "Building a modern MIPS cross-toolchain for linux", > I download following packages: > > binutils-2.11 > gcc-2.95 > glibc-2.2.5 > glibc-linuxthreads-2.2.5 > > And following the procedue: ... > However, I got the error_message: ... > /usr/toolchain1-mips/lib/gcc-lib/mips-linux/2.95/../../../../mips-linux/sys >- include/bits/mathinline.h:426: > unknown register name `st(1)' in `asm' ... > Does any have any idea to fix this error? It sounds like you used the standard binutils. You should probably use H.J. Lu's binutils (they have some MIPS patches applied), and also his gcc (same story). They're available at: http://ftp.kernel.org/pub/linux/devel/binutils/ ftp://ftp.linux-mips.org/pub/linux/mips/redhat/7.3/test/ > When I build the C cross-compiler, I use the "dubious hack" > --with-headers=/usr/include copy the "MIPS host header files". Are there > any other ways to copy the MIPS-host headers? I never understood why anyone would use this method. If you're building a mips-linux cross-compiler, you should have a copy of the Linux kernel source from linux-mips.org lying around somewhere (or are you using a pre-compiled kernel image?). Just copy the include directory from this source to a convenient location, symbolically link asm to asm-mips and point the gcc configure to it. I've included below my personal build notes from a mipsel (little-endian) cross-toolchain I built a couple months ago. Hopefully these will be helpful. Note that I chose /opt/toolchains/mips for the installed path, rather than /usr/local. My build system was SuSE 7.2 (gcc version 2.95.3 20010315 (SuSE) and binutils version 2.10.91). Also, you don't mention applying the glibc-2.2.5-mips-build-gmon.diff patch that Brad LaRonde recommends. If you didn't apply this patch, you might also want to do that. Brad ----------------Build Notes------------------------------------ I relied primarily on Steven J. Hill's build script [SJH], but with several adjustments. H.J. Lu says only his binutils will work: http://ftp.kernel.org/pub/linux/devel/binutils/ I got the latest version. H.J. Lu also says to use his gcc 3.2. This is available only in source rpm format, at: ftp://ftp.linux-mips.org/pub/linux/mips/redhat/7.3/test/ Glibc came from the standard location: ftp://ftp.gnu.org/gnu/glibc/ *Except*...patched with "glibc-2.2.5-mips-build-gmon.diff" from [BDL2.4]. This source also recommends the "-finline-limit=10000" CFLAG value (claims ld.so won't work without it, and this seems to be true). Tool versions: Binutils v2.13.90.0.10 (H.J. Lu) GCC v3.2 (H.J. Lu) Glibc v2.2.5 Glibc-linuxthreads v2.2.5 Patch: glibc-2.2.5-mips-build-gmon.diff (http://www.ltc.com/~brad/mips/glibc-2.2.5-mips-build-gmon.diff) ------------------------- Build Log ------------------------- [Implied "su" to root prior to each "make install" below.] 1. Downloaded tarballs/rpms and unpacked to: ~/mipsel-cross/binutils-2.13 ~/mipsel-cross/gcc-3.2 ~/mipsel-cross/glibc-2.2.5 (linuxthreads is unpacked into the glibc-2.2.5 directory) 2. Binutils: cd ~/mipsel-cross/binutils-2.13/mips chmod 744 README cd .. ./mips/README (apply HJ Lu's patches) mkdir ~/mipsel-cross/mipsel-binutils cd ~/mipsel-cross/mipsel-binutils ../binutils-2.13/configure --prefix=/opt/toolchains/mips \ --enable-targets=mips64el-linux,mipsel-linux --target=mipsel-linux \ --enable-shared make make install 3. Gcc (1st time) cp -R ~/linux-2.4/include/asm-mips /opt/toolchains/mips/mipsel-linux/include cp -R ~/linux-2.4/include/linux /opt/toolchains/mips/mipsel-linux/include cd /opt/toolchains/mips/mipsel-linux/include ln -s asm-mips asm mkdir ~/mipsel-cross/mipsel-gcc cd ~/mipsel-cross/mipsel-gcc AR=mipsel-linux-ar RANLIB=mipsel-linux-ranlib ../gcc-3.2/configure \ --prefix=/opt/toolchains/mips --with-newlib --enable-languages=c \ --target=mipsel-linux --disable-shared --disable-threads make make install 4. Glibc cd ~/mipsel-cross/glibc-2.2.5 patch -p1 -i ../glibc-2.2.5-mips-build-gmon.diff (patch asked for name of each file to patch...had to type them in) mkdir ~/mipsel-cross/mipsel-glibc cd ~/mipsel-cross/mipsel-glibc CFLAGS="-O2 -g -finline-limit=10000" LD_LIBRARY_PATH= \ BUILD_CC=gcc CC=mipsel-linux-gcc AR=mipsel-linux-ar AS=mipsel-linux-as \ RANLIB=mipsel-linux-ranlib ../glibc-2.2.5/configure \ --prefix=/opt/toolchains/mips/mipsel-linux --host=mipsel-linux \ --build=i686-pc-linux-gnu --enable-add-ons --with-elf \ --disable-profile \ --with-headers=/opt/toolchains/mips/mipsel-linux/include \ --mandir=/opt/toolchains/mips/man --infodir=/opt/toolchains/mips/info \ --enable-kernel=2.4.0 make make install 5. Gcc (2nd time - with full glibc support) mkdir ~/mipsel-cross/mipsel-gccfull cd ~/mipsel-cross/mipsel-gccfull AR=mipsel-linux-ar RANLIB=mipsel-linux-ranlib ../gcc-3.2/configure \ --prefix=/opt/toolchains/mips --enable-languages=c,c++ \ --target=mipsel-linux --enable-shared --enable-threads \ --includedir=/opt/toolchains/mips/mipsel-linux/include \ --with-gxx-include-dir=/opt/toolchains/mips/mipsel-linux/include \ --mandir=/opt/toolchains/mips/man --infodir=/opt/toolchains/mips/info \ --disable-checking make make install Sources: -------- [BDL2.4] LaRonde, Bradley D., "Building a Modern MIPS Cross-Toolchain for Linux", v2.4, 2002-09-25, http://www.ltc.com/~brad/mips/mips-cross-toolchain.html [SJH] ftp://ftp.cotw.com/Linux/MIPS/toolchain/stable/sources/mipsel-linux-toolchain-bu ild.sh ----------------End Build Notes-------------------------------- -- Brad Barrett Staff Engineer, Patton Electronics brad@patton.com
