[lfs-support] Error Compiling GCC pass 2

Keith Howard kbhoward1975 at gmail.com
Mon Apr 11 06:46:23 PDT 2016


I am using Knoppix 7, 2016 version as a host system.
I am following the LFS-systemd 7.9 book.
I have an AMD Athlon X2 system with 1GB of RAM.

I will put commands that I typed into the console, or info I received from
the console in single quotes; for example, 'ls -al'

I am receiving an error compiling GCC, pass 2
I simply run 'make', no options, no optimizations.

I am getting an error from 'ld' trying to load 'liblto_plugin.so'.
The error was 'wrong ELF class: ELFCLASS64'

Here is snippet from my console:

/bin/sh ../../../libgcc/../mkinstalldirs .
-B/tools/x86_64-unknown-linux-gnu/lib/ -isystem
/tools/x86_64-unknown-linux-gnu/include -isystem
/tools/x86_64-unknown-linux-gnu/sys-include    -O2  -g -O2 -DIN_GCC    -W
-Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition  -isystem ./include   -fpic
-mlong-double-80 -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector
-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 _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 _clrsbsi2_s.o _clrsbdi2_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 cpuinfo_s.o sfp-exceptions_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 enable-execute-stack_s.o unwind-dw2_s.o
unwind-dw2-fde-dip_s.o unwind-sjlj_s.o unwind-c_s.o emutls_s.o libgcc.a -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
/mnt/lfs/sources/gcc-5.3.0/build/./gcc/liblto_plugin.so: error loading
plugin: /mnt/lfs/sources/gcc-5.3.0/build/./gcc/liblto_plugin.so: wrong ELF
class: ELFCLASS64
collect2: error: ld returned 1 exit status
Makefile:947: recipe for target 'libgcc_s.so' failed
make[2]: *** [libgcc_s.so] Error 1
make[2]: Leaving directory
Makefile:13653: recipe for target 'all-target-libgcc' failed
make[1]: *** [all-target-libgcc] Error 2
make[1]: Leaving directory '/mnt/lfs/sources/gcc-5.3.0/build'
Makefile:880: recipe for target 'all' failed
make: *** [all] Error 2

'file -L liblto_plugin.so' indeed, shows that is a 64 bit binary....but I
thought we were compiling for $LFS_TGT, which is 'x86_64-lfs-linux-gnu'
Some Googling for similar problems seems to indicate that something was
possibly compiled 32bit...(?)
I don't know what to do to correct the problem (mostly because I don't know
what the problem is).
I could sure use some guidance, here.

Thanks in advance!
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