[Bug target/38547] duplicate symbols with g++ on AIX
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547 --- Comment #21 from Rainer Tammer tammer at tammer dot net 2011-05-15 09:20:15 UTC --- Hello, Sorry for the delayed answer. On 02.05.2011 19:41, jqian at tibco dot com wrote: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547 --- Comment #20 from Jason Qian jqian at tibco dot com 2011-05-02 17:35:23 UTC --- Comment on attachment 16962 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=16962 errors during build Hi Rainer I got the same message using gcc4.4.0 ob AIX 5.3 Duplicate symbol: .__divti3 Is there patch for this ? Unfortunately not. This problem is there for a long time. But I am not aware of a patch. Bye Rainer
[Bug target/38547] duplicate symbols with g++ on AIX
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547 --- Comment #20 from Jason Qian jqian at tibco dot com 2011-05-02 17:35:23 UTC --- Comment on attachment 16962 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=16962 errors during build Hi Rainer I got the same message using gcc4.4.0 ob AIX 5.3 Duplicate symbol: .__divti3 Is there patch for this ?
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #19 from tammer at tammer dot net 2009-01-25 09:18 --- Hello, I second that. Bye Rainer -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #18 from bruprz1 at lhsystems dot pl 2009-01-21 14:39 --- (In reply to comment #13) symbols. The assembly files generated by GCC for AIX always have included multiple symbol definitions for certain global variable and function If I understand correctly, that statement means that there have always been duplicate symbols under AIX. This may be true for 5.3, but: We maintain an application in C/C++ (over 1.5 million ELOC, with shared libraries) and since we had upgraded to AIX 5.2 and GCC4.1.1 we didn't have even one duplicate symbol there. Before that we indeed had duplicate symbols in C++ code (since weak symbols were not supported). Please have a look at the following: host52:/tmp$ oslevel -r 5200-00 host52:/tmp$ /usr/local/gcc/3.4.3/bin/g++ a.cc host52:/tmp$ /usr/local/gcc/4.1.1/bin/g++ a.cc host53:/tmp$ oslevel -r 5300-02 host53:/tmp$ /usr/local/gcc/4.0.2/bin/g++ a.cc ld: 0711-224 WARNING: Duplicate symbol: .__divdi3 ld: 0711-224 WARNING: Duplicate symbol: .__moddi3 ld: 0711-224 WARNING: Duplicate symbol: .__udivdi3 ld: 0711-224 WARNING: Duplicate symbol: .__umoddi3 ld: 0711-224 WARNING: Duplicate symbol: .__udivmoddi4 ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information. host53:/tmp$ /usr/local/gcc/4.3.2/bin/g++ a.cc ld: 0711-224 WARNING: Duplicate symbol: .__divdi3 ld: 0711-224 WARNING: Duplicate symbol: .__moddi3 ld: 0711-224 WARNING: Duplicate symbol: .__udivdi3 ld: 0711-224 WARNING: Duplicate symbol: .__umoddi3 ld: 0711-224 WARNING: Duplicate symbol: .__udivmoddi4 ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information. It looks like a 5.3 regression - could you have look at the problem again, please? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #11 from tammer at tammer dot net 2008-12-22 08:03 --- Hello, one clarification ... this happened with all 4.x gcc versions ... This means I have tried to build gcc 4.x myself and I ran in the same problem that the symbols come from two libraries. One library provides the static version and one the dynamic. I think that this functions should be pulled in via the static version... am I wrong here ? Unfortunately I have no deeper knowledge of the gcc build environment so its really hard to track down the problem. Thanks for your help. Bye Rainer -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #12 from pinskia at gcc dot gnu dot org 2008-12-22 08:11 --- Actually those symbols in libgcc_s.a should be hidden ... -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #13 from pinskia at gcc dot gnu dot org 2008-12-22 08:17 --- Oh, you should read the installation instructions: http://gcc.gnu.org/install/specific.html Linking executables and shared libraries may produce warnings of duplicate symbols. The assembly files generated by GCC for AIX always have included multiple symbol definitions for certain global variable and function declarations in the original program. The warnings should not prevent the linker from producing a correct library or runnable executable. -- pinskia at gcc dot gnu dot org changed: What|Removed |Added Status|WAITING |RESOLVED Resolution||INVALID http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #14 from tammer at tammer dot net 2008-12-22 09:48 --- Hello, yes, the binary executes. So these symbols should be removed from the export file from ligbcc_s.a then? I will build gcc 4.2.4 on my build machine (AIX 5.3) with the SPEC file/patch from Mr. Perzl. Then I will look for the export file of libgcc_s.a. Bye Rainer -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #16 from tammer at tammer dot net 2008-12-22 12:17 --- Created an attachment (id=16962) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16962action=view) errors during build -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #15 from tammer at tammer dot net 2008-12-22 12:16 --- Hello, I just started my own build of 4.2.4 ... During stage3 I get the following errors: ld: 0711-768 WARNING: Object ../libsupc++/.libs/libsupc++convenience.a[eh_terminate.o], section 1, function .__cxxabiv1::__terminate(void (*)()): The branch at address 0x13c is not followed by a recognized no-op or TOC-reload instruction. The unrecognized instruction is 0x0. ld: 0711-768 WARNING: Object ../libsupc++/.libs/libsupc++convenience.a[eh_terminate.o], section 1, function .std::terminate(): The branch at address 0x194 is not followed by a recognized no-op or TOC-reload instruction. The unrecognized instruction is 0x0. see attached log... Bye Rainer -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #17 from tammer at tammer dot net 2008-12-22 12:31 ---
Hello,
I found one interesting thing:
The call (for .libs/libstdc++.so.6) which produced the error messaged ends in:
${wl}-berok
Should this not be:
-Wl,-berok
Bye
Rainer
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #2 from pinskia at gcc dot gnu dot org 2008-12-21 23:00 ---
.__divdi3
{/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/libgcc_s.a[shr.o]}
** Duplicate **
../../gcc-4.2.4/gcc/libgcc2.c(/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/libgcc.a[_divdi3.o])
libgcc.a and libgcc_s.a should not be linked in together.
Can you add a -v to the gcc command line and provide that output?
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
Status|UNCONFIRMED |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #3 from tammer at tammer dot net 2008-12-22 07:22 --- Hello, here is the -v log: Using built-in specs. Target: powerpc-ibm-aix5.3.0.0 Configured with: ../gcc-4.2.4/configure --with-as=/usr/bin/as --with-ld=/usr/bin/ld --enable-languages=c,c++,fortran --prefix=/opt/freeware --enable-threads --enable-version-specific-runtime-libs --disable-nls --enable-decimal-float=dpd --host=powerpc-ibm-aix5.3.0.0 Thread model: aix gcc version 4.2.4 /opt/freeware/libexec/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/cc1plus -quiet -v -D_ALL_SOURCE hello.cpp -quiet -dumpbase hello.cpp -auxbase hello -version -o /tmp//ccyHZAZn.s ignoring nonexistent directory /opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/../../../../powerpc-ibm-aix5.3.0.0/include #include ... search starts here: #include ... search starts here: /opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/include/c++ /opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/include/c++/powerpc-ibm-aix5.3.0.0 /opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/include/c++/backward /usr/local/include /opt/freeware/include /opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/include /usr/include End of search list. GNU C++ version 4.2.4 (powerpc-ibm-aix5.3.0.0) compiled by GNU C version 4.2.4. GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=32768 Compiler executable checksum: aad024cebe4ac3095c87c9dcfa7fc033 /usr/bin/as -u -mppc -o /tmp//ccQD9A51.o /tmp//ccyHZAZn.s /opt/freeware/libexec/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/collect2 -bpT:0x1000 -bpD:0x2000 -btextro -bnodelcsect -o hello /lib/crt0.o -L/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4 -L/opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/../../.. /tmp//ccQD9A51.o -lstdc++ -lm -lgcc_s /opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/libgcc.a -lc -lgcc_s /opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/libgcc.a ld: 0711-224 WARNING: Duplicate symbol: .__divdi3 ld: 0711-224 WARNING: Duplicate symbol: .__moddi3 ld: 0711-224 WARNING: Duplicate symbol: .__udivdi3 ld: 0711-224 WARNING: Duplicate symbol: .__umoddi3 ld: 0711-224 WARNING: Duplicate symbol: .__udivmoddi4 ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information. Bye Rainer -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #4 from tammer at tammer dot net 2008-12-22 07:27 --- Created an attachment (id=16957) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16957action=view) libgcc dump -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #5 from tammer at tammer dot net 2008-12-22 07:27 --- Created an attachment (id=16958) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16958action=view) libgcc_s dump -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #6 from tammer at tammer dot net 2008-12-22 07:28 --- Hello, I have uploaded the dump of ligbcc.a and libgcc_s.a. Bye Rainer -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #7 from pinskia at gcc dot gnu dot org 2008-12-22 07:46 --- -lgcc_s /opt/freeware/lib/gcc/powerpc-ibm-aix5.3.0.0/4.2.4/libgcc.a That should not happen. In fact I am reading init_gcc_specs correctly, you have a modified GCC version. Did you compile this GCC yourself or is this from a binary install of GCC? I do know that other folks trying to use gcc with C++ on aix5.3 works. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #8 from tammer at tammer dot net 2008-12-22 07:56 --- Hello, this happened with all 4.x gcc versions. This version is from www.perzl.org. There is only a tiny patch to the build files (see attachment). Bye Rainer -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #9 from tammer at tammer dot net 2008-12-22 07:56 --- Created an attachment (id=16959) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16959action=view) AIX gcc 4.2.4 patch -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
[Bug target/38547] duplicate symbols with g++ on AIX
--- Comment #10 from tammer at tammer dot net 2008-12-22 07:57 --- Created an attachment (id=16960) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16960action=view) AIX gcc 4.2.4 spec file -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38547
