我想在linux中创建一个Fortran共享库,它静态链接到 gcc
库 .
例如,我有 hello.f
:
function hello()
print *, "Hello World!"
end function hello
当我使用共享 gcc
链接时,一切正常
$ gcc hello.f -shared -fPIC -o hello.so -lgfortran
$ ldd hello.so
linux-vdso.so.1 => (0x00007ffe3df5d000)
libgfortran.so.4 => /lib64/libgfortran.so.4 (0x00007fb1e59eb000)
libquadmath.so.0 => /lib64/libquadmath.so.0 (0x00007fb1e57af000)
libm.so.6 => /lib64/libm.so.6 (0x00007fb1e54ad000)
libc.so.6 => /lib64/libc.so.6 (0x00007fb1e50e0000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fb1e4eca000)
/lib64/ld-linux-x86-64.so.2 (0x00007fb1e5fc9000)
当我尝试静态链接时,我收到错误:
$ gcc hello.f -shared -fPIC -o hello.so -static-libgcc -Wl,-Bstatic -lgfortran -Wl,-Bdynamic
ld: /usr/lib/gcc/x86_64-redhat-linux/7/libgfortran.a(transfer.o): relocation R_X86_64_32S against `.rodata.bswap_array' can not be used when making a shared object; recompile with -fPIC
...
ld: final link failed: Bad value
c中的相同方法工作正常:
#include <iostream>
int hello(){
std::cout << "Hello, World!\n";
return 0;
}
链接到静态 gcc
库
$ gcc hello.cpp -shared -fPIC -o hello.so -static-libgcc -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
$ ldd hello.so
linux-vdso.so.1 => (0x00007ffd89192000)
libc.so.6 => /lib64/libc.so.6 (0x00007fdb8dfb2000)
/lib64/ld-linux-x86-64.so.2 (0x00007fdb8e6c7000)
有谁知道为什么 libgfortran.a
不是用 -fPIC
编译的,而 libstdc++.a
是?
它有什么解决方法吗?