Hi all, From http://gcc.gnu.org/wiki/whopr/driver:
> When the WPA phase produces the definition of the COMDAT symbol in a new > object file, that definition should not be in a COMDAT group. But it appears that it is: > davek@gcc10:~/gcc/obj.patched/gcc/testsuite/g++$ grep section > g++-dg-lto-200811 > 09-1-01.ltrans0.s > .section .gcc_except_table,"a",@progbits > .section .data.rel.ro._ZTI3Foo,"awG",@progbits,_ZTI3Foo,comdat > .section .rodata._ZTS3Foo,"aG",@progbits,_ZTS3Foo,comdat > .section > .data.DW.ref._ZTI3Foo,"awG",@progbits,DW.ref._ZTI3Foo,co > mdat > .section > .data.DW.ref.__gxx_personality_v0,"awG",@progbits,DW.ref > .__gxx_personality_v0,comdat > .section .note.GNU-stack,"",@progbits > davek@gcc10:~/gcc/obj.patched/gcc/testsuite/g++$ Note in particular _ZTI3Foo and _ZTS3Foo, they have comdat groupnames. The GAS manual doesn't even suggest a way to make a single comdat section without a group for ELF. Am I misunderstanding what that line from the documentation means? Does it maybe just mean that WPA should pass it to LTRANS without specifying a comdat group but LTRANS should go ahead and do so? cheers, DaveK