Xen devel - Feb 2008 - [PATCH] ioemu: avoid name clashes due to LIST_* macros

This patch was submitted upstream to qemu but has not yet been
accepted or rejected there.  This change ought probably to be made to
xen-unstable now to help support stub domains.

Here is what I wrote in my submission to qemu upstream:

 qemu''s audio subdirectory contains a copy of BSD''s
sys-queue.h, which
 defines a bunch of LIST_ macros.  This makes it difficult to build a
 program made partly out of qemu and partly out of the Linux kernel[1],
 since Linux has a different set of LIST_ macros.  It might also cause
 trouble when mixing with BSD-derived code.

 Under the circumstances it''s probably best to rename the versions in
 qemu.  The attached patch does this.

 [1] You might well ask why anyone would want to do this.  In Xen we
 are moving our emulation of IO devices from processes which run on the
 host into a dedicated VM (one per actual VM) which we call a `stub
 domain''.  This dedicated VM runs a very cut-down `operating
system''
 which uses some code from Linux.

The patch should be applied with
 cd tools/ioemu/
 patch -p0 <.../qemu-audio-sys-queue-list-rename.patch

Ian.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>



_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel