[Xen-devel] kernel module does not compile on xen

[Xin Zhao <zhaoxin@xxxxxxxxxxxxxx>]

Dear all,

I tried to compile a simple kernel module in dom0, but failed.  I tried to
point the include directory to linux-2.4.27-xenU/include and then compile
my kernel module. But the compiler always complain this:

----------------------------------------------------------------
gcc -O2 -DMODULE -D__KERNEL__ -w -Wall
-I/usr/src/linux-2.4.27-xenU/include   -c -o file.o file.c
In file included from
/usr/src/linux-2.4.27-xenU/include/linux/reiserfs_fs_sb.h:8,
                 from /usr/src/linux-2.4.27-xenU/include/linux/fs.h:729,
                 from
/usr/src/linux-2.4.27-xenU/include/linux/capability.h:17,
                 from
/usr/src/linux-2.4.27-xenU/include/linux/binfmts.h:5,
                 from /usr/src/linux-2.4.27-xenU/include/linux/sched.h:9,
                 from file.c:17:
/usr/src/linux-2.4.27-xenU/include/linux/tqueue.h: In function
`queue_task':
/usr/src/linux-2.4.27-xenU/include/linux/tqueue.h:105: error:
`HYPERVISOR_shared_info_R99320c5e' undeclared (first use in this function)
/usr/src/linux-2.4.27-xenU/include/linux/tqueue.h:105: error: (Each
undeclared identifier is reported only once
/usr/src/linux-2.4.27-xenU/include/linux/tqueue.h:105: error: for each
function it appears in.)
In file included from file.c:17:
/usr/src/linux-2.4.27-xenU/include/linux/sched.h: In function
`unhash_process':
/usr/src/linux-2.4.27-xenU/include/linux/sched.h:917: error:
`HYPERVISOR_shared_info_R99320c5e' undeclared (first use in this function)

---------------------------------------------------------------------------

But the kernel module works fine on a bare machine. What shall I do to
make it through?

I did check the file tqueue.h, but HYPERVISOR_shared_info_R99320c5e is not
defined there. Instead, it was defined in
/usr/src/linux-2.4.27-xenU/include/linux/modules/i386_ksyms.ver. I am not
familiar with this kind of file. Do I have to include the .ver file?

Thanks in advance for your kind help,
Xin


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