Hello,
I'm facing the following problem: I want to create a shared library on Linux
(Red Hat Enterprise 3) / Opteron, with gcc 4.0.0 & binutils 2.16. When
compiling in 32-bit mode (with -m32) everything works, but in 64-bit mode
(with -m64) the following error message appears:
gcc -shared {list of .o files} -ldl -lm
/opt/dessup/gnu_2004/gcc400/opt3/lib/gcc/x86_64-unknown-linux-gnu/4.0.0/../../../../lib64/libstdc++.a
-m64 -static-libgcc -fPIC
-Wl,-soname -Wl,libAGENT.so.1 -o .libs/libAGENT.so.1.0.0
/opt/dessup/gnu_2004/gcc400/opt3/bin/ld:
/opt/dessup/gnu_2004/gcc400/opt3/lib/gcc/x86_64-unknown-linux-gnu/4.0.0/../../../../lib64/libstdc++.a(functexcept.o):
relocation R_X86_64_32 against `std::bad_typeid::~bad_typeid()' can not be
used when making a shared object; recompile with
-fPIC
/opt/dessup/gnu_2004/gcc400/opt3/lib/gcc/x86_64-unknown-linux-gnu/4.0.0/../../../../lib64/libstdc++.a:
could not read symbols: Bad value
collect2: ld returned 1 exit status
all object files were compiled with the following switches (c/c++): -O3
-fno-exception -m64 -fPIC
What does the error message mean? Is gcc 4.0.0 (or at least libstdc++.a)
miscompiled, or is it a gcc configuration problem:
gcc -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: /home/gcc_compile/opt3/gcc-4.0.0/configure
--prefix=/opt/dessup/gnu_2004/gcc400/opt3 --disable-nls --disable-werror
--with-local-prefix=/opt/dessup/gnu_2004/tools/opt3 --with-gnu-as
--with-as=/opt/dessup/gnu_2004/gcc400/opt3/bin/as --with-gnu-ld
--with-ld=/opt/dessup/gnu_2004/gcc400/opt3/bin/ld
--enable-languages=c,c++,objc,java
Thread model: posix
gcc version 4.0.0
thanks for your time,
Roland Lengfeldner
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