Trying to compile latest linux-2.6.git with gcc 4.3 trunk as of today results in :
kernel/built-in.o: In function `getnstimeofday': (.text+0x1c315): undefined reference to `__umoddi3' kernel/built-in.o: In function `do_gettimeofday': (.text+0x1c3cd): undefined reference to `__udivdi3' kernel/built-in.o: In function `do_gettimeofday': (.text+0x1c3f0): undefined reference to `__umoddi3' kernel/built-in.o: In function `timekeeping_resume': timekeeping.c:(.text+0x1c572): undefined reference to `__udivdi3' timekeeping.c:(.text+0x1c595): undefined reference to `__umoddi3' kernel/built-in.o: In function `update_wall_time': (.text+0x1cb9f): undefined reference to `__udivdi3' kernel/built-in.o: In function `update_wall_time': (.text+0x1cbc2): undefined reference to `__umoddi3' kernel/built-in.o: In function `update_wall_time': (.text+0x1cc5c): undefined reference to `__udivdi3' kernel/built-in.o: In function `update_wall_time': (.text+0x1cc86): undefined reference to `__umoddi3' make: *** [.tmp_vmlinux1] Error 1 It works fine with gcc 4.2, so it seems to be a 4.3 regression. -- Summary: [4.3 regression] gcc fails to compile Linux kernel Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ismail at pardus dot org dot tr http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34167