------- 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
