Re: 2.6.21-rc7-mm2 -- x86_64 VDSO compile error II

On Thursday 26 April 2007 15:27:36 Mel Gorman wrote:
On (26/04/07 13:16), Andy Whitcroft didst pronounce:
Getting the following on an x86_64 numa box:

CC arch/x86_64/vdso/vclock_gettime.o
arch/x86_64/vdso/vclock_gettime.c:1: error: code model `small' not
supported in the 32 bit mode
make[1]: *** [arch/x86_64/vdso/vclock_gettime.o] Error 1
make: *** [arch/x86_64/vdso] Error 2

Kernel config here: http://test.kernel.org/abat/85358/build/dotconfig


Hi Andi,

Backing out x86_64-mm-vdso.patch allowed this kernel to build and boot
successful on the machine in question (elm3b6). The backout caused one reject
in Documentation/kernel-parameters but otherwise backed out easily. It's
not super-clear why it fails to build. If you want me to try another patch,
make sure I'm cc'd and I'll give it a spin.


Or please try this simple patch.

-Andi

Index: linux/arch/x86_64/vdso/Makefile
===================================================================
--- linux.orig/arch/x86_64/vdso/Makefile
+++ linux/arch/x86_64/vdso/Makefile
@@ -32,7 +32,7 @@ $(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso
$(obj)/vdso.so: $(src)/vdso.lds $(vobjs) FORCE
$(call if_changed,syscall)

-CF := $(PROFILING) -mcmodel=small -fPIC -g0 -O2 -fasynchronous-unwind-tables
+CF := $(PROFILING) -mcmodel=small -fPIC -g0 -O2 -fasynchronous-unwind-tables -m64

$(obj)/vclock_gettime.o: CFLAGS = $(CF)
$(obj)/vgetcpu.o: CFLAGS = $(CF)
-
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