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Hi, Dimi Shahbaz; It's because the floating point things in fclrexcpt.c Configuration for ppc750 with floating point may not have the problem. You need the following steps to correct it. 1. Move the sysdeps/powerpc/fclrexcpt.c to sysdeps/powerpc/fpu/ 2. Delete the sysdeps/powerpc/memset.S 3. Edit the sysdeps/powerpc/Makefile #ifeq ($(subdir),math) #libm-support += fenv_const fe_nomask #endif > Hi, > I'm trying to write a clean script that build a complete crossgcc > toolchain (binutils, gcc3.0.4, and glibc) from scratch. > Bill's FAQ has been very helpful, but there are a lot of gotchas, > especially for the powerpc. I've put my build script and documentation > online at > http://www.dimator.org/~dimator/work/crossgcc/ > > It seems to work for sh4, but for ppc405 (which lacks an FPU) > I keep running into problems. My current problem is it can't find > fenv_libc.h when building the final glibc. Here is the line that fails: > > /home2/dimator/opt//ppc405/bin/powerpc-linux-gcc > ../sysdeps/powerpc/fclrexcpt.c -c -O2 -Wall -Winline -Wstrict-prototypes > -Wwrite-strings -g -mnew-mnemonics -Wa,-mppc -mpowerpc > -Wno-uninitialized -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES > -DNO_LONG_DOUBLE -D_Mlong_double_=double -I../include -I. > -I/home2/dimator/3rdParty/crosstools/glibc-ppc405/math -I.. -I../libio > -I/home2/dimator/3rdParty/crosstools/glibc-ppc405 > -I../sysdeps/powerpc/elf -I../linuxthreads/sysdeps/unix/sysv/linux > -I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread > -I../linuxthreads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix > -I../linuxthreads/sysdeps/powerpc -I../sysdeps/unix/sysv/linux/powerpc > -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common > -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv > -I../sysdeps/unix/powerpc -I../sysdeps/unix -I../sysdeps/posix > -I../sysdeps/powerpc -I../sysdeps/wordsize-32 > -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 > -I../sysdeps/powerpc/soft-fp -I../sysdeps/ieee754 > -I../sysdeps/generic/elf -I../sysdeps/generic -nostdinc -isystem > /home2/dimator/opt//ppc405/lib/gcc-lib/powerpc-linux/3.0.4/include > -isystem /home2/dimator/opt//ppc405/powerpc-linux/include/ > -D_LIBC_REENTRANT -include ../include/libc-symbols.h -I../soft-fp/ > -o /home2/dimator/3rdParty/crosstools/glibc-ppc405/math/fclrexcpt.o > ../sysdeps/powerpc/fclrexcpt.c:20:23: fenv_libc.h: No such file or directory > ../sysdeps/powerpc/fclrexcpt.c: In function `__feclearexcept': > ../sysdeps/powerpc/fclrexcpt.c:26: `fenv_union_t' undeclared (first use > in this function) > ../sysdeps/powerpc/fclrexcpt.c:26: (Each undeclared identifier is > reported only once > ../sysdeps/powerpc/fclrexcpt.c:26: for each function it appears in.) > ../sysdeps/powerpc/fclrexcpt.c:26: parse error before "u" > ../sysdeps/powerpc/fclrexcpt.c:29: `u' undeclared (first use in this > function) > ../sysdeps/powerpc/fclrexcpt.c:29: warning: implicit declaration of > function `fegetenv_register' > ../sysdeps/powerpc/fclrexcpt.c:32: `FPSCR_VX' undeclared (first use in > this function) > ../sysdeps/powerpc/fclrexcpt.c:32: `FE_ALL_INVALID' undeclared (first > use in this function) > ../sysdeps/powerpc/fclrexcpt.c:33: `FPSCR_STICKY_BITS' undeclared (first > use in this function) > ../sysdeps/powerpc/fclrexcpt.c:36: warning: implicit declaration of > function `fesetenv_register' > make[2]: *** > [/home2/dimator/3rdParty/crosstools/glibc-ppc405/math/fclrexcpt.o] Error 1 > make[2]: Leaving directory > `/home2/dimator/home/dank/ixia/Software/Source/linux/3rdParty/crosstools/glibc-2.2.5/math' > make[1]: *** [math/others] Error 2 > make[1]: Leaving directory > `/home2/dimator/home/dank/ixia/Software/Source/linux/3rdParty/crosstools/glibc-2.2.5' > make: *** [all] Error 2 > > /home2/dimator/opt//ppc405/bin/powerpc-linux-gcc -v: > Reading specs from > /home2/dimator/opt//ppc405/lib/gcc-lib/powerpc-linux/3.0.4/specs > Configured with: ../gcc-3.0.4/configure --target=powerpc-linux > --build=i686-linux --program-prefix=powerpc-linux- > --prefix=/home2/dimator/opt//ppc405 --without-headers > --enable-languages=c --with-newlib --disable-shared --with-cpu=403 > --without-fp > Thread model: single > gcc version 3.0.4 > > glibc's configure switches: > ../glibc-2.2.5/configure --host=powerpc-linux > --enable-add-ons=linuxthreads > --with-headers=/home2/dimator/opt//ppc405/powerpc-linux/include/ > --prefix=/home2/dimator/opt//ppc405 --with-cpu=403 --without-fp > > Can anyone see what I'm doing wrong? Again, my full build script > is up at http://www.dimator.org/~dimator/work/crossgcc/ > > Thanks! > > > > > ------ > Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ > Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com > >
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