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Re: [Qemu-devel] latest version qemu compile error
From: |
Zhanghaoyu (A) |
Subject: |
Re: [Qemu-devel] latest version qemu compile error |
Date: |
Wed, 10 Apr 2013 03:24:42 +0000 |
> > I compile the QEMU source download from qemu.git
> > (http://git.qemu.org/git/qemu.git) on 4-9-2013, errors reported as
> > below,
> >
> >
> >
> > hw/virtio/dataplane/vring.c: In function 'vring_enable_notification':
> >
> > hw/virtio/dataplane/vring.c:72: warning: implicit declaration of
> > function 'vring_avail_event'
> >
> > hw/virtio/dataplane/vring.c:72: warning: nested extern declaration of
> > 'vring_avail_event'
> >
> > hw/virtio/dataplane/vring.c:72: error: lvalue required as left operand
> > of assignment
> >
> > hw/virtio/dataplane/vring.c: In function 'vring_should_notify':
> >
> > hw/virtio/dataplane/vring.c:107: warning: implicit declaration of
> > function 'vring_need_event'
> >
> > hw/virtio/dataplane/vring.c:107: warning: nested extern declaration of
> > 'vring_need_event'
> >
> > hw/virtio/dataplane/vring.c:107: warning: implicit declaration of
> > function 'vring_used_event'
> >
> > hw/virtio/dataplane/vring.c:107: warning: nested extern declaration of
> > 'vring_used_event'
> >
> > hw/virtio/dataplane/vring.c: In function 'vring_pop':
> >
> > hw/virtio/dataplane/vring.c:262: error: lvalue required as left
> > operand of assignment
> >
> > make: *** [hw/virtio/dataplane/vring.o] Error 1
> >
> >
> >
> > 'vring_avail_event' and 'vring_need_event' defined in
> > /linux-headers/linux/virtio_ring.h, are not available in vring.c ?
>
> Please send the log of "make V=1".
>
> Paolo
The log of "make V=1" is identical with that of "make", shown as below,
hw/virtio/dataplane/vring.c: In function 'vring_enable_notification':
hw/virtio/dataplane/vring.c:72: warning: implicit declaration of function
'vring_avail_event'
hw/virtio/dataplane/vring.c:72: warning: nested extern declaration of
'vring_avail_event'
hw/virtio/dataplane/vring.c:72: error: lvalue required as left operand of
assignment
hw/virtio/dataplane/vring.c: In function 'vring_should_notify':
hw/virtio/dataplane/vring.c:107: warning: implicit declaration of function
'vring_need_event'
hw/virtio/dataplane/vring.c:107: warning: nested extern declaration of
'vring_need_event'
hw/virtio/dataplane/vring.c:107: warning: implicit declaration of function
'vring_used_event'
hw/virtio/dataplane/vring.c:107: warning: nested extern declaration of
'vring_used_event'
hw/virtio/dataplane/vring.c: In function 'vring_pop':
hw/virtio/dataplane/vring.c:262: error: lvalue required as left operand of
assignment
make: *** [hw/virtio/dataplane/vring.o] Error 1
Thanks,
Zhang Haoyu