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Re: [Xen-devel] Compilation error crossbuilding tools.



On Wed, 2013-04-10 at 15:11 +0100, Sander Bogaert wrote:
> On 10 April 2013 14:34, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> > On Mon, 2013-04-08 at 11:28 +0100, Stefano Stabellini wrote:
> >> On Sat, 6 Apr 2013, Sander Bogaert wrote:
> >> > On compilation ( followed the wiki ) I get:
> >> > ....
> >> > arm-linux-gnueabihf-gcc  -O1 -fno-omit-frame-pointer -marm -g
> >> > -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes
> >> > -Wdeclaration-after-statement -Wno-unused-but-set-variable
> >> > -Wno-unused-local-typedefs   -D__XEN_TOOLS__ -MMD -MF .block-qcow2.o.d
> >> >  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -fno-optimize-sibling-calls
> >> >  -Werror -Wno-unused -I../lib
> >> > -I/home/user/source/xen/xen-main/tools/blktap/drivers/../../../tools/libxc
> >> > -I/home/user/source/xen/xen-main/tools/blktap/drivers/../../../tools/include
> >> > -I/home/user/source/xen/xen-main/tools/blktap/drivers/../../../tools/xenstore
> >> > -I/home/user/source/xen/xen-main/tools/blktap/drivers/../../../tools/include
> >> > -D_GNU_SOURCE -DMEMSHR -I ../../memshr -pthread  -c -o block-qcow2.o
> >> > block-qcow2.c
> >> > block-qcow2.c: In function 'bdrv_pread':
> >> > block-qcow2.c:238:4: error: format '%llx' expects argument of type
> >> > 'long long unsigned int', but argument 5 has type '__off_t'
> >> > [-Werror=format]
> >> > cc1: all warnings being treated as errors
> >> > make[5]: *** [block-qcow2.o] Error 1
> >> > make[5]: Leaving directory 
> >> > `/home/user/source/xen/xen-main/tools/blktap/drivers'
> >> > make[4]: *** [subdir-install-drivers] Error 2
> >> > make[4]: Leaving directory `/home/user/source/xen/xen-main/tools/blktap'
> >> > make[3]: *** [subdirs-install] Error 2
> >> > make[3]: Leaving directory `/home/user/source/xen/xen-main/tools/blktap'
> >> > make[2]: *** [subdir-install-blktap] Error 2
> >> > make[2]: Leaving directory `/home/user/source/xen/xen-main/tools'
> >> > make[1]: *** [subdirs-install] Error 2
> >> > make[1]: Leaving directory `/home/user/source/xen/xen-main/tools'
> >> > make: *** [install-tools] Error 2
> >>
> >> Reading the error, I think that the appended patch (completely untested)
> >> should fix the problem:
> >
> > blktap(1) shouldn't even be attempted to build on ARM. My series
> > "arm: tools: build for arm64 and enable cross-compiling for both arm32
> > and arm64" contains "tools: only build blktap1 on x86".
> 
> So does this mean I'm building the tools wrong? I'm in a chroot
> described by the wiki and my target arch was set correctly.

Quoting
http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/CrossCompiling#Obtaining_a_cross-buildable_Xen_tree

        Patches to enable crossbuilding of Xen have been posted to the
        xen-devel mailing list but have not yet been accepted into the
        tree. A git branch with the necessary patches applied can be
        found at git://xenbits.xen.org/people/ianc/xen.git arm-cross.

Are you using the referenced tree? It contains the series I mention
above.

Ian.


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