Building cross compiler for x86_64/Linux target from Mac OS X host

Building cross compiler for x86_64/Linux target from Mac OS X host

[William R. Otte]

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Hi folks - 

I'm having some trouble building a cross compiler for a x86_64/Linux target from my Mac OS X 10.6 host.  

I am trying to build using binutils 2.19 and GCC 4.4.1, in order to emulate an OpenSUSE 11.3 environment.  

While trying to build BUILD_ROOT/x86_64-unknown-linux-gnu/32/libgcc, I get the following error:

/bin/sh ../../../../gcc-4.4.1/libgcc/../mkinstalldirs 32
/Users/wotte/cross/rpms/gcc-build/./gcc/xgcc -B/Users/wotte/cross/rpms/gcc-build/./gcc/ -B/opt/cross/opensuse/x86_64-unknown-linux-gnu/bin/ -B/opt/cross/opensuse/x86_64-unknown-linux-gnu/lib/ -isystem /opt/cross/opensuse/x86_64-unknown-linux-gnu/include -isystem /opt/cross/opensuse/x86_64-unknown-linux-gnu/sys-include -O2  -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -DNATIVE_CROSS  -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wold-style-definition  -isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -shared -nodefaultlibs -Wl,--soname=libgcc_s.so.1 -Wl,--version-script=libgcc.map -o 32/libgcc_s.so.1.tmp -g -O2 -m32 -B./ _muldi3_s.o _negdi2_s.o _lshrdi3_s.o _ashldi3_s.o _ashrdi3_s.o _cmpdi2_s.o _ucmpdi2_s.o _clear_cache_s.o _enable_execute_stack_s.o _trampoline_s.o __main_s.o _absvsi2_s.o _absvdi2_s.o _addvsi3_s.o _addvdi3_s.o _subvsi3_s.o _subvdi3_s.o _mulvsi3_s.o _mulvdi3_s.o _negvsi2_s.o _negvdi2_s.o _ctors_s.o _ffssi2_s.o _ffsdi2_s.o _clz_s.o _clzsi2_s.o _clzdi2_s.o _ctzsi2_s.o _ctzdi2_s.o _popcount_tab_s.o _popcountsi2_s.o _popcountdi2_s.o _paritysi2_s.o _paritydi2_s.o _powisf2_s.o _powidf2_s.o _powixf2_s.o _powitf2_s.o _mulsc3_s.o _muldc3_s.o _mulxc3_s.o _multc3_s.o _divsc3_s.o _divdc3_s.o _divxc3_s.o _divtc3_s.o _bswapsi2_s.o _bswapdi2_s.o _fixunssfsi_s.o _fixunsdfsi_s.o _fixunsxfsi_s.o _fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixunssfdi_s.o _fixunsdfdi_s.o _fixunsxfdi_s.o _floatdisf_s.o _floatdidf_s.o _floatdixf_s.o _floatundisf_s.o _floatundidf_s.o _floatundixf_s.o _divdi3_s.o _moddi3_s.o _udivdi3_s.o _umoddi3_s.o _udiv_w_sdiv_s.o _udivmoddi4_s.o addtf3_s.o divtf3_s.o eqtf2_s.o getf2_s.o letf2_s.o multf3_s.o negtf2_s.o subtf3_s.o unordtf2_s.o fixtfsi_s.o fixunstfsi_s.o floatsitf_s.o floatunsitf_s.o fixtfdi_s.o fixunstfdi_s.o floatditf_s.o floatunditf_s.o extendsftf2_s.o extenddftf2_s.o extendxftf2_s.o trunctfsf2_s.o trunctfdf2_s.o trunctfxf2_s.o tf-signs_s.o unwind-dw2_s.o unwind-dw2-fde-glibc_s.o unwind-sjlj_s.o gthr-gnat_s.o unwind-c_s.o emutls_s.o -lc && rm -f 32/libgcc_s.so && if [ -f 32/libgcc_s.so.1 ]; then mv -f 32/libgcc_s.so.1 32/libgcc_s.so.1.backup; else true; fi && mv 32/libgcc_s.so.1.tmp 32/libgcc_s.so.1 && ln -s libgcc_s.so.1 32/libgcc_s.so
/opt/cross/opensuse/x86_64-unknown-linux-gnu/bin/ld: crti.o: No such file: No such file or directory
collect2: ld returned 1 exit status

In order to resolve this, I copy the *32 bit* versions of this file (and others it's missing) target environment (i.e., /usr/lib, /usr/lib) to PREFIX/x86_64-unknown-linux-gnu/lib/, and the compile proceeds.  

Next, I get the following error from BUILD_ROOT/x86_64-unknown-linux-gnu/libgcc:

/bin/sh ../../../gcc-4.4.1/libgcc/../mkinstalldirs .
/Users/wotte/cross/rpms/gcc-build/./gcc/xgcc -B/Users/wotte/cross/rpms/gcc-build/./gcc/ -B/opt/cross/opensuse/x86_64-unknown-linux-gnu/bin/ -B/opt/cross/opensuse/x86_64-unknown-linux-gnu/lib/ -isystem /opt/cross/opensuse/x86_64-unknown-linux-gnu/include -isystem /opt/cross/opensuse/x86_64-unknown-linux-gnu/sys-include -O2  -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -DNATIVE_CROSS  -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wold-style-definition  -isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -shared -nodefaultlibs -Wl,--soname=libgcc_s.so.1 -Wl,--version-script=libgcc.map -o ./libgcc_s.so.1.tmp -g -O2 -B./ _muldi3_s.o _negdi2_s.o _lshrdi3_s.o _ashldi3_s.o _ashrdi3_s.o _cmpdi2_s.o _ucmpdi2_s.o _clear_cache_s.o _enable_execute_stack_s.o _trampoline_s.o __main_s.o _absvsi2_s.o _absvdi2_s.o _addvsi3_s.o _addvdi3_s.o _subvsi3_s.o _subvdi3_s.o _mulvsi3_s.o _mulvdi3_s.o _negvsi2_s.o _negvdi2_s.o _ctors_s.o _ffssi2_s.o _ffsdi2_s.o _clz_s.o _clzsi2_s.o _clzdi2_s.o _ctzsi2_s.o _ctzdi2_s.o _popcount_tab_s.o _popcountsi2_s.o _popcountdi2_s.o _paritysi2_s.o _paritydi2_s.o _powisf2_s.o _powidf2_s.o _powixf2_s.o _mulsc3_s.o _muldc3_s.o _mulxc3_s.o _divsc3_s.o _divdc3_s.o _divxc3_s.o _bswapsi2_s.o _bswapdi2_s.o _fixunssfsi_s.o _fixunsdfsi_s.o _fixunsxfsi_s.o _fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixunssfdi_s.o _fixunsdfdi_s.o _fixunsxfdi_s.o _floatdisf_s.o _floatdidf_s.o _floatdixf_s.o _floatundisf_s.o _floatundidf_s.o _floatundixf_s.o _divdi3_s.o _moddi3_s.o _udivdi3_s.o _umoddi3_s.o _udiv_w_sdiv_s.o _udivmoddi4_s.o addtf3_s.o divtf3_s.o multf3_s.o negtf2_s.o subtf3_s.o unordtf2_s.o fixtfsi_s.o fixunstfsi_s.o floatsitf_s.o floatunsitf_s.o fixtfdi_s.o fixunstfdi_s.o floatditf_s.o floatunditf_s.o fixtfti_s.o fixunstfti_s.o floattitf_s.o floatuntitf_s.o extendsftf2_s.o extenddftf2_s.o extendxftf2_s.o trunctfsf2_s.o trunctfdf2_s.o trunctfxf2_s.o getf2_s.o letf2_s.o eqtf2_s.o _divtc3_s.o _multc3_s.o _powitf2_s.o unwind-dw2_s.o unwind-dw2-fde-glibc_s.o unwind-sjlj_s.o gthr-gnat_s.o unwind-c_s.o emutls_s.o -lc && rm -f ./libgcc_s.so && if [ -f ./libgcc_s.so.1 ]; then mv -f ./libgcc_s.so.1 ./libgcc_s.so.1.backup; else true; fi && mv ./libgcc_s.so.1.tmp ./libgcc_s.so.1 && ln -s libgcc_s.so.1 ./libgcc_s.so
/opt/cross/opensuse/x86_64-unknown-linux-gnu/bin/ld: skipping incompatible /opt/cross/opensuse/x86_64-unknown-linux-gnu/lib/libc.so when searching for -lc
/opt/cross/opensuse/x86_64-unknown-linux-gnu/bin/ld: skipping incompatible /opt/cross/opensuse/x86_64-unknown-linux-gnu/lib/libc.so when searching for -lc
/opt/cross/opensuse/x86_64-unknown-linux-gnu/bin/ld: cannot find -lc
collect2: ld returned 1 exit status

If I attempt to resolve this by placing the *64 bit* versions of libc.so.6, crti.o, crtn.o into PREFIX/x86_64-unknown-linux-gnu/lib, I get the previous error again.  

If I attempt to resolve this by placing the *32 bit* versions into BUILD_ROOT/x86_64-unknown-linux-gnu/32/libgcc and the *64 bit* versions into BUILD_ROOT/x86_64-unknown-linux-gnu/libgcc, both are resolved and the compile proceeds until the configure process of libgomp, where it complains about missing the same files.  

Is there some obvious way to resolve this that I am missing?

thanks,
/-Will



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