From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23082 invoked by alias); 4 Mar 2007 07:53:53 -0000 Received: (qmail 23047 invoked by uid 48); 4 Mar 2007 07:53:41 -0000 Date: Sun, 04 Mar 2007 07:53:00 -0000 Subject: [Bug c/31033] New: Collect2 will not allow shared gcc with cross compiler X-Bugzilla-Reason: CC Message-ID: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "kstemen at centeris dot com" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2007-03/txt/msg00203.txt.bz2 First off, here's what I passed to the gcc configure script: CC=gcc CC="$CC" CFLAGS="" CXXFLAGS="" CPPFLAGS="" ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info \ --enable-shared --enable-threads=posix --enable-checking=release \ --with-system-zlib --disable-libunwind-exceptions \ --prefix=/usr --exec-prefix=/usr \ --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc \ --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 \ --libexecdir=/usr/libexec --localstatedir=/var \ --sharedstatedir=/usr/com --mandir=/usr/share/man \ --infodir=/usr/share/info \ --without-long-double-128 \ --enable-languages=c \ --host=x86_64-redhat-linux --build=x86_64-redhat-linux \ --target=powerpc-ibm-aix5.3.0 --with-cpu=default32 \ --with-gnu-as --with-gnu-ld --enable-libssp=no \ --with-sysroot=/usr/powerpc-ibm-aix5.3.0/sys-root If I try to compile hello world on the resultant compiler with the following options, it works (and runs on AIX): [kyle@ryoko ~]$ powerpc-ibm-aix5.3.0-gcc -c hello.c [kyle@ryoko ~]$ powerpc-ibm-aix5.3.0-gcc hello.o -o hello [kyle@ryoko ~]$ ls -l hello -rwxrwxr-x 1 kyle kyle 282114 Mar 3 23:41 hello Howerver, if I try to compile it with a shared libgcc, it fails: [kyle@ryoko ~]$ powerpc-ibm-aix5.3.0-gcc -c hello.c [kyle@ryoko ~]$ powerpc-ibm-aix5.3.0-gcc -shared-libgcc hello.o -o hello collect2: init function found in object /usr/lib64/gcc/powerpc-ibm-aix5.3.0/4.1.1/../../../../powerpc-ibm-aix5.3.0/lib/libgcc_s.a I have tracked the error message down to the collect2 program. It comes from collect2.c. Collect2 will run nm on all of the libraries. If it finds a symbol that starts with "GLOBAL__FI_", it will report that error, but only if collect2 is built as a cross compiler. This shows that the native gcc in the AIX Toolbox works despite the same export: [kyle@ryoko ~]$ powerpc-ibm-aix5.3.0-nm /usr/lib64/gcc/powerpc-ibm-aix5.3.0/4.1.1/../../../../powerpc-ibm-aix5.3.0/lib/libgcc_s.a | grep GLOBAL__FI_ 0000000010000238 T ._GLOBAL__FI_shr_o 0000000020000ae8 d _GLOBAL__FI_shr_o 0000000020000ae8 D _GLOBAL__FI_shr_o [kyle@ryoko ~]$ scp hello.o testuser@aix64build: testuser@localhost's password: hello.o 100% 1040 1.0KB/s 00:00 [testuser@aix64build ~]$ nm /opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.0.0/libgcc_s.a | grep GLOBAL__FI_ ._GLOBAL__FI_shr_o T 268463976 _GLOBAL__FI_shr_o D 536873824 _GLOBAL__FI_shr_o d 536873824 12 [testuser@aix64build ~]$ gcc -shared-libgcc hello.o -o hello [testuser@aix64build ~]$ ls -l hello -rwxr-xr-x 1 testuser staff 17487 Mar 03 23:49 hello -- Summary: Collect2 will not allow shared gcc with cross compiler Product: gcc Version: 4.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: kstemen at centeris dot com GCC build triplet: x86_64-redhat-linux GCC host triplet: x86_64-redhat-linux GCC target triplet: powerpc-ibm-aix5.3.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31033