Re: [Qemu-devel] [patch] make qemu work with GCC 4

[Michael Matz]

Hi,

On Wed, 29 Aug 2007, Johannes Schindelin wrote:

> > The whole patch is against a 0.9.0-cvs version from 2007-07-09 (Alex 
> > might know the exact checkout date), so chances are that it still 
> > applies :)
> 
> It is based on the z80 fork, but it applies relatively cleanly (one 
> trailing whitespace) to the version as of "Use unsigned 32-bit load for 
> ld/lduw".
> 
> However, I still get this error:
> 
> ../dyngen -o op.h op.o
> dyngen: ret or jmp expected at the end of op_tadd_T1_T0_ccTV
> make[1]: *** [op.h] Fehler 1
> make[1]: Leaving directory `/home/me/qemu/sparc-linux-user'

Using SuSE 10.2, i.e. gcc 4.1.2?  For qemu CVS (see my other mail) I 
didn't test linux-user at all.  In our qemu package itself (which builds 
also the linux-user parts) there are some more patches which might fix the 
above problem, don't know yet.  I would try --disable-linux-user in your 
case.  I can look at it later.

> 
> When only making i386-softmmu, I still get this (on SuSE 10.2):
> 
> In file included from /home/gene099/my/qemu/usb-linux.c:29:
> /usr/include/linux/usbdevice_fs.h:49: error: expected ‘:’, ‘,’, ‘;’, ‘}’ 
> or ‘__attribute__’ before ‘*’ token
> /usr/include/linux/usbdevice_fs.h:56: error: expected ‘:’, ‘,’, ‘;’, ‘}’ 
> or ‘__attribute__’ before ‘*’ token
> /usr/include/linux/usbdevice_fs.h:66: error: expected ‘:’, ‘,’, ‘;’, ‘}’ 
> or ‘__attribute__’ before ‘*’ token
> /usr/include/linux/usbdevice_fs.h:100: error: expected ‘:’, ‘,’, ‘;’, ‘}’ 
> or ‘__attribute__’ before ‘*’ token
> /usr/include/linux/usbdevice_fs.h:116: error: expected ‘:’, ‘,’, ‘;’, ‘}’ 
> or ‘__attribute__’ before ‘*’ token
> /home/me/qemu/usb-linux.c: In function ‘usb_host_handle_data’:
> /home/me/qemu/usb-linux.c:130: error: ‘struct 
> usbdevfs_bulktransfer’ has no member named ‘data’
> make: *** [usb-linux.o] Fehler 1

Yes, that's a problem of the kernel headers on 10.2.  You can work around 
this with the below snippet.


Ciao,
Michael.
-- 
Index: usb-linux.c
===================================================================
RCS file: /sources/qemu/qemu/usb-linux.c,v
retrieving revision 1.10
diff -u -p -r1.10 usb-linux.c
--- usb-linux.c 10 Dec 2006 22:11:04 -0000      1.10
+++ usb-linux.c 29 Aug 2007 11:45:13 -0000
@@ -26,6 +26,7 @@
 #if defined(__linux__)
 #include <dirent.h>
 #include <sys/ioctl.h>
+#define __user
 #include <linux/usbdevice_fs.h>
 #include <linux/version.h>