On Thu, May 15, 2008 at 07:35:39PM +0200, Sam Ravnborg wrote:On Thu, May 15, 2008 at 07:12:34PM +0200, Jiri Slaby wrote:Well, let's fix sam's email.Your machine claims it is a x86_64 and you are building for a x86_64
Jiri Slaby napsal(a):Hi,
probably
4ce6efed48d736e3384c39ff87bda723e1f8e041
kbuild: soften modpost checks when doing cross builds
causes build failures on x86_64 kernel build on 32 bit machine:
make -f /local/xslaby/hid/scripts/Makefile.modpost
YYYYYYYYYYYYYY x86_64 x86_64
scripts/mod/modpost -m -a -o /local/xslaby/buhid/Module.symvers -S -K /local/xslaby/buhid/Module.markers -M /local/xslaby/buhid/Module.markers -s
XXXXXXXXXXXXXXXXXX 20: 0 (2), 4 (4), 8 (4), 12 (8)
FATAL: drivers/hid/hid-apple: sizeof(struct hid_device_id)=20 is not a modulo of the size of section __mod_hid_device_table=648.
Fix definition of struct hid_device_id in mod_devicetable.h
make[2]: *** [__modpost] Error 1
make[1]: *** [modules] Error 2
make: *** [sub-make] Error 2
after sticking echo into:
__modpost: $(modules:.ko=.o) FORCE
+ @echo YYYYYYYYYYYYYY $(KBUILD_BUILDHOST) $(ARCH)
$(call cmd,modpost) $(wildcard vmlinux) $(filter-out FORCE,$^)
according to the following line:
So it looks to me that you are building for 64 bit on a 64 bit machine.YYYYYYYYYYYYYY x86_64 x86_64
So when you write:
on x86_64 kernel build on 32 bit machine:
I assume you try to say that your HOSTCC is 32 bit and your
kernel cc is 64 bit (or something similar).
The commit you reference loosen up the check so we do not do the
check if we _know_ that the host and the target system differs.
The only thing I can imagine right now to solve your issue would
be to skip the check if we do not use the same gcc for target and host?
So something like this (entirely untested):
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -65,7 +65,7 @@ modules := $(patsubst %.o,%.ko, $(wildcard $(__modules:.ko=.o)))
# Stop after building .o files if NOFINAL is set. Makes compile tests quicker
_modpost: $(if $(KBUILD_MODPOST_NOFINAL), $(modules:.ko:.o),$(modules))
-ifneq ($(KBUILD_BUILDHOST),$(ARCH))
+ifneq ($(CC),$(HOSTCC))
cross_build := 1--
endif