llvm dev - Feb 2008 - [LLVMdev] amd64, FreeBSD and shared libraries

Hello,

I am trying to build llvm-gcc 4.2 w/ llvm 2.2 on FreeBSD/amd64 and have
found that it doesn't seem to want to build shared libraries. I've found
numerous notes that I should try --disable-shared, because the linker
ends up erroring out with a linker error when building libgcc_s.so.
Subsequently, the same error is produced when it attempts to build
libstdc++.so. If you do happen to build and install it, any attempt to
link a shared library results in this very same behavior. The
crtbeginS.o object seems to contain the offending relocation data which
ld doesn't like.

The following error is what I get:

/usr/home/cokane/src/llvm-gcc4.2-2.2.source/host-amd64-undermydesk-freebsd8/gcc/xgcc
-B/usr/home/cokane/src/llvm-gcc4.2-2.2.source/host-amd64-undermydesk-freebsd8/gcc/
-B/home/cokane/llvm-root/amd64-undermydesk-freebsd8/bin/
-B/home/cokane/llvm-root/amd64-undermydesk-freebsd8/lib/ -isystem
/home/cokane/llvm-root/amd64-undermydesk-freebsd8/include -isystem
/home/cokane/llvm-root/amd64-undermydesk-freebsd8/sys-include -O2  -O2
-fPIC  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition  -isystem ./include   -fPIC
-pthread -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED 
-shared -nodefaultlibs -Wl,--soname=libgcc_s.so.1
-Wl,--version-script=libgcc/./libgcc.map -o ./libgcc_s.so.1.tmp 
libgcc/./_muldi3_s.o libgcc/./_negdi2_s.o libgcc/./_lshrdi3_s.o
libgcc/./_ashldi3_s.o libgcc/./_ashrdi3_s.o libgcc/./_cmpdi2_s.o
libgcc/./_ucmpdi2_s.o libgcc/./_clear_cache_s.o
libgcc/./_enable_execute_stack_s.o libgcc/./_trampoline_s.o
libgcc/./__main_s.o libgcc/./_absvsi2_s.o libgcc/./_absvdi2_s.o
libgcc/./_addvsi3_s.o libgcc/./_addvdi3_s.o libgcc/./_subvsi3_s.o
libgcc/./_subvdi3_s.o libgcc/./_mulvsi3_s.o libgcc/./_mulvdi3_s.o
libgcc/./_negvsi2_s.o libgcc/./_negvdi2_s.o libgcc/./_ctors_s.o
libgcc/./_ffssi2_s.o libgcc/./_ffsdi2_s.o libgcc/./_clz_s.o
libgcc/./_clzsi2_s.o libgcc/./_clzdi2_s.o libgcc/./_ctzsi2_s.o
libgcc/./_ctzdi2_s.o libgcc/./_popcount_tab_s.o
libgcc/./_popcountsi2_s.o libgcc/./_popcountdi2_s.o
libgcc/./_paritysi2_s.o libgcc/./_paritydi2_s.o libgcc/./_powisf2_s.o
libgcc/./_powidf2_s.o libgcc/./_powixf2_s.o libgcc/./_powitf2_s.o
libgcc/./_mulsc3_s.o libgcc/./_muldc3_s.o libgcc/./_mulxc3_s.o
libgcc/./_multc3_s.o libgcc/./_divsc3_s.o libgcc/./_divdc3_s.o
libgcc/./_divxc3_s.o libgcc/./_divtc3_s.o libgcc/./_bswapsi2_s.o
libgcc/./_bswapdi2_s.o libgcc/./_fixunssfsi_s.o libgcc/./_fixunsdfsi_s.o
libgcc/./_fixunsxfsi_s.o libgcc/./_fixsfdi_s.o libgcc/./_fixunssfdi_s.o
libgcc/./_floatdisf_s.o libgcc/./_floatundisf_s.o libgcc/./_fixdfdi_s.o
libgcc/./_fixunsdfdi_s.o libgcc/./_floatdidf_s.o
libgcc/./_floatundidf_s.o libgcc/./_fixxfdi_s.o libgcc/./_fixunsxfdi_s.o
libgcc/./_floatdixf_s.o libgcc/./_floatundixf_s.o libgcc/./_fixtfdi_s.o
libgcc/./_fixunstfdi_s.o libgcc/./_floatditf_s.o
libgcc/./_floatunditf_s.o libgcc/./_divdi3_s.o libgcc/./_moddi3_s.o
libgcc/./_udivdi3_s.o libgcc/./_umoddi3_s.o libgcc/./_udiv_w_sdiv_s.o
libgcc/./_udivmoddi4_s.o libgcc/./unwind-dw2_s.o
libgcc/./unwind-dw2-fde_s.o libgcc/./unwind-sjlj_s.o
libgcc/./gthr-gnat_s.o libgcc/./unwind-c_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
/usr/bin/ld:
/usr/home/cokane/src/llvm-gcc4.2-2.2.source/host-amd64-undermydesk-freebsd8/gcc/crtbeginS.o:
relocation R_X86_64_32S can not be used when making a shared object;
recompile with -fPIC
/usr/home/cokane/src/llvm-gcc4.2-2.2.source/host-amd64-undermydesk-freebsd8/gcc/crtbeginS.o:
could not read symbols: Bad value
collect2: ld returned 1 exit status
gmake[3]: *** [libgcc_s.so] Error 1
gmake[3]: Leaving directory
`/usr/home/cokane/src/llvm-gcc4.2-2.2.source/host-amd64-undermydesk-freebsd8/gcc'
gmake[2]: *** [libgcc.a] Error 2
gmake[2]: Leaving directory
`/usr/home/cokane/src/llvm-gcc4.2-2.2.source/host-amd64-undermydesk-freebsd8/gcc'
gmake[1]: *** [all-gcc] Error 2
gmake[1]: Leaving directory `/usr/home/cokane/src/llvm-gcc4.2-2.2.source'
gmake: *** [all] Error 2

I am really eager to get this working on my system so that I can play
around. Any help would be appreciated.

--
Coleman Kane

Try --disable-multilib

Ciao,

Duncan.

On Feb 15, 2008, at 7:17 PM, Coleman Kane wrote:
> Hello,
>
> I am trying to build llvm-gcc 4.2 w/ llvm 2.2 on FreeBSD/amd64 and  
> have
> found that it doesn't seem to want to build shared libraries. I've
> found
> numerous notes that I should try --disable-shared, because the linker
> ends up erroring out with a linker error when building libgcc_s.so.
> Subsequently, the same error is produced when it attempts to build
> libstdc++.so. If you do happen to build and install it, any attempt to
> link a shared library results in this very same behavior. The
> crtbeginS.o object seems to contain the offending relocation data  
> which
> ld doesn't like.
This is due to http://llvm.org/PR1711.  Please try configuring with -- 
disable-shared and --disable-bootstrap.

-Chris

Duncan Sands wrote:
> Try --disable-multilib
>
> Ciao,
>
> Duncan.
>   
The configure line for this build was:
 env CPPFLAGS=-fPIC CFLAGS=-fPIC CXXFLAGS=-fPIC ./configure
--enable-llvm=/home/cokane/src/llvm-2.2/Release
--prefix=/home/cokane/llvm-root --enable-languages=c,c++ --disable-nls
--with-system-zlib --with-libiconv-prefix=/usr/local --enable-shared
--enable-pic --with-pic --disable-bootstrap --disable-multilib


I am aware that I *can* get the compiler to build if I also
--disable-shared. This, however, just hides the fact that the linker
won't link crtbeginS.o to a shared library (as the GCC build doesn't end
up building any). When I later go to build shared libraries, it fails
linking with the same error message. So it seems that the compiler can
only be used for statically linked projects, in my case.

--
Coleman