Re: [RFC] [Cross Toolchain] Multiarch and sysrooted toolchain
Hello Simon,
> As far as I've understood, --with-sysroot gives the path to the target OS
> installation so the build can run "fixincludes" and add it to the search
> paths; since it should work with a largely unmodified snapshot of the
> target OS, they are pretty tolerant with the directory layout there. I
> don't believe that is meant as an endorsement of a particular layout, and
> it should work fine with --with-sysroot=/usr/<triplet> even with the
> current layout.
Right, but it expects include/ to be under usr/include/ as FHS wants.
In practice, I did a build for gcc-4.3 and here you have some of the results:
Binutils 2.18 configure:
~~~~~~~~~~~~~~~~~
../configure --host=x86_64-linux-gnu \
--build=x86_64-linux-gnu --target=s390-linux-gnu --prefix=/usr \
--enable-targets=s390x-linux-gnu
--with-sysroot=/usr/s390-linux-gnu/
GCC-4.3 configure:
~~~~~~~~~~~~~~
../src/configure -v --with-pkgversion='Debian 4.3.2-1.1'
--with-bugurl='file:///usr/share/doc/gcc-4.3/README.Bugs'
--enable-languages=c,c++,objc,obj-c++ --prefix=/usr --enable-shared
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --enable-nls
--with-gxx-include-dir=/usr/s390-linux-gnu/include/c++/4.3.2
--program-suffix=-4.3 --with-sysroot=/usr/s390-linux-gnu/
--enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc
--with-long-double-128 --enable-checking=release
--program-prefix=s390-linux-gnu-
--includedir=/usr/s390-linux-gnu/include --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=s390-linux-gnu
Output error:
~~~~~~~~~
/home/zumbi/buildcross/trunk/s390/gcc-4.3-4.3.2/build/./gcc/xgcc
-B/home/zumbi/buildcross/trunk/s390/gcc-4.3-4.3.2/build/./gcc/
-B/usr/s390-linux-gnu/bin/ -B/usr/s390-linux-gnu/lib/ -isystem
/usr/s390-linux-gnu/include -isystem /usr/s390-linux-gnu/sys-include
-O2 -O2 -g -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition -isystem ./include -fPIC -mlong-double-128 -g
-DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -shared
-nodefaultlibs -Wl,--soname=libgcc_s.so.1
-Wl,--version-script=libgcc.map -o 64/libgcc_s.so.1.tmp -O2 -g -g -O2
-m64 -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 _fixtfdi_s.o _fixunssfdi_s.o
_fixunsdfdi_s.o _fixunsxfdi_s.o _fixunstfdi_s.o _floatdisf_s.o
_floatdidf_s.o _floatdixf_s.o _floatditf_s.o _floatundisf_s.o
_floatundidf_s.o _floatundixf_s.o _floatunditf_s.o _divdi3_s.o
_moddi3_s.o _udivdi3_s.o _umoddi3_s.o _udiv_w_sdiv_s.o _udivmoddi4_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 64/libgcc_s.so && if [ -f
64/libgcc_s.so.1 ]; then mv -f 64/libgcc_s.so.1
64/libgcc_s.so.1.backup; else true; fi && mv 64/libgcc_s.so.1.tmp
64/libgcc_s.so.1 && ln -s libgcc_s.so.1 64/libgcc_s.so
/usr/s390-linux-gnu/bin/ld: skipping incompatible
/usr/s390-linux-gnu/lib/libc.so when searching for -lc
/usr/s390-linux-gnu/bin/ld: skipping incompatible
/usr/s390-linux-gnu/lib/libc.a when searching for -lc
/usr/s390-linux-gnu/bin/ld: skipping incompatible
/usr/s390-linux-gnu/bin/../../lib/libc.so when searching for -lc
/usr/s390-linux-gnu/bin/ld: skipping incompatible
/usr/s390-linux-gnu/bin/../../lib/libc.a when searching for -lc
/usr/s390-linux-gnu/bin/ld: s390:31-bit architecture of input file
`/usr/s390-linux-gnu/lib/crti.o' is incompatible with s390:64-bit
output
/usr/s390-linux-gnu/bin/ld: s390:31-bit architecture of input file
`/usr/s390-linux-gnu/lib/crtn.o' is incompatible with s390:64-bit
output
collect2: ld returned 1 exit status
--
Héctor Orón
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