Arch Linux

melindauus

Member

Registered: 2017-10-11

Posts: 2

GCC 7.2 compiles shared library instead of executable

I have a virtual machine with ArchLinux installed. Here when I compile with GCC by running gcc file.c it gives me a shared library instead of an executable.

Later I find out that the problem is related only to GCC 7.2, in fact, when I compile with GCC 6.4, the output file is an executable.

How do I fix this?

Last edited by melindauus (2017-10-11 12:32:54)

loqs

Member

Registered: 2014-03-06

Posts: 17,321

Re: GCC 7.2 compiles shared library instead of executable

Please post the full commands used and their outputs https://bbs.archlinux.org/viewtopic.php?id=57855

$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --enable-gnu-indirect-function --disable-multilib --disable-werror --enable-checking=release --enable-default-pie --enable-default-ssp
Thread model: posix
gcc version 7.2.0 (GCC) 
$ cat test.c
int main ()
{
    return 0;
}
$ gcc test.c
$ file a.out
a.out: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=a26ea3d3371ce8eb76893fecf46be9f3a09f51e6, not stripped
$ ./a.out
$ file /usr/bin/file
/usr/bin/file: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=e2d70feeb6384a369cef58d1cf8a899b4c48be0e, stripped