From: Linus Torvalds Date: Sun, 17 Jan 2010 18:24:07 +0000 (-0800) Subject: x86: Fix breakage of UML from the changes in the rwsem system X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4126faf0ab7417fbc6eb99fb0fd407e01e9e9dfe;p=linux-beck.git x86: Fix breakage of UML from the changes in the rwsem system The patches 5d0b7235d83eefdafda300656e97d368afcafc9a and bafaecd11df15ad5b1e598adc7736afcd38ee13d broke the UML build: On Sun, 17 Jan 2010, Ingo Molnar wrote: > > FYI, -tip testing found that these changes break the UML build: > > kernel/built-in.o: In function `__up_read': > /home/mingo/tip/arch/x86/include/asm/rwsem.h:192: undefined reference to `call_rwsem_wake' > kernel/built-in.o: In function `__up_write': > /home/mingo/tip/arch/x86/include/asm/rwsem.h:210: undefined reference to `call_rwsem_wake' > kernel/built-in.o: In function `__downgrade_write': > /home/mingo/tip/arch/x86/include/asm/rwsem.h:228: undefined reference to `call_rwsem_downgrade_wake' > kernel/built-in.o: In function `__down_read': > /home/mingo/tip/arch/x86/include/asm/rwsem.h:112: undefined reference to `call_rwsem_down_read_failed' > kernel/built-in.o: In function `__down_write_nested': > /home/mingo/tip/arch/x86/include/asm/rwsem.h:154: undefined reference to `call_rwsem_down_write_failed' > collect2: ld returned 1 exit status Add lib/rwsem_64.o to the UML subarch objects to fix. LKML-Reference: Signed-off-by: H. Peter Anvin --- diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile index 2201e9c20e4a..c1ea9eb04466 100644 --- a/arch/um/sys-x86_64/Makefile +++ b/arch/um/sys-x86_64/Makefile @@ -8,7 +8,8 @@ obj-y = bug.o bugs.o delay.o fault.o ldt.o mem.o ptrace.o ptrace_user.o \ setjmp.o signal.o stub.o stub_segv.o syscalls.o syscall_table.o \ sysrq.o ksyms.o tls.o -subarch-obj-y = lib/csum-partial_64.o lib/memcpy_64.o lib/thunk_64.o +subarch-obj-y = lib/csum-partial_64.o lib/memcpy_64.o lib/thunk_64.o \ + lib/rwsem_64.o subarch-obj-$(CONFIG_MODULES) += kernel/module.o ldt-y = ../sys-i386/ldt.o