xen/build-tapdisk-ioemu.patch

From f1ebeae7802a5775422004f62630c42e46dcf664 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@suse.de>
Date: Tue, 10 Mar 2009 16:32:40 +0100
Subject: [PATCH 3/6] ioemu: Build tapdisk-ioemu binary

When changing away from the old ioemu, changes in the Makefiles
resulted in tapdisk-ioemu appearing there, but actually not
being built. This patch re-enables the build of tapdisk-ioemu.

Signed-off-by: Kevin Wolf <kwolf@suse.de>
---
 Makefile        |   22 +++++++++++++++-------
 configure       |    2 +-
 qemu-tool.c     |    2 +-
 tapdisk-ioemu.c |   17 -----------------
 4 files changed, 17 insertions(+), 26 deletions(-)

Index: xen-4.1.2-testing/tools/ioemu-qemu-xen/Makefile
===================================================================
--- xen-4.1.2-testing.orig/tools/ioemu-qemu-xen/Makefile
+++ xen-4.1.2-testing/tools/ioemu-qemu-xen/Makefile
@@ -46,14 +46,6 @@ $(filter %-user,$(SUBDIR_RULES)): libqem
 
 recurse-all: $(SUBDIR_RULES)
 
-CPPFLAGS += -I$(XEN_ROOT)/tools/libxc
-CPPFLAGS += -I$(XEN_ROOT)/tools/blktap/lib
-CPPFLAGS += -I$(XEN_ROOT)/tools/xenstore
-CPPFLAGS += -I$(XEN_ROOT)/tools/include
-
-tapdisk-ioemu: tapdisk-ioemu.c cutils.c block.c block-raw.c block-cow.c block-qcow.c aes.c block-vmdk.c block-cloop.c block-dmg.c block-bochs.c block-vpc.c block-vvfat.c block-qcow2.c hw/xen_blktap.c osdep.c
-	$(CC) -DQEMU_TOOL $(CFLAGS) $(CPPFLAGS) $(BASE_CFLAGS) $(LDFLAGS) $(BASE_LDFLAGS) -o $@ $^ -lz $(LIBS)
-
 #######################################################################
 # BLOCK_OBJS is code used by both qemu system emulation and qemu-img
 
@@ -72,6 +64,21 @@ endif
 BLOCK_OBJS += block-raw-posix.o
 endif
 
+#######################################################################
+# tapdisk-ioemu
+
+hw/tapdisk-xen_blktap.o: hw/xen_blktap.c
+	$(CC) $(CFLAGS) $(CPPFLAGS) -DQEMU_IMG -DQEMU_TOOL -c -o $@ $<
+tapdisk-ioemu.o: tapdisk-ioemu.c
+	$(CC) $(CFLAGS) $(CPPFLAGS) -DQEMU_IMG -DQEMU_TOOL -c -o $@ $<
+
+tapdisk-ioemu: CPPFLAGS += -I$(XEN_ROOT)/tools/libxc
+tapdisk-ioemu: CPPFLAGS += -I$(XEN_ROOT)/tools/blktap/lib
+tapdisk-ioemu: CPPFLAGS += -I$(XEN_ROOT)/tools/xenstore
+tapdisk-ioemu: CPPFLAGS += -I$(XEN_ROOT)/tools/include
+tapdisk-ioemu: tapdisk-ioemu.o $(BLOCK_OBJS) qemu-tool.o hw/tapdisk-xen_blktap.o
+	$(CC) $(LDFLAGS) -o $@ $^ -lz $(LIBS)
+
 ######################################################################
 # libqemu_common.a: Target independent part of system emulation. The
 # long term path is to suppress *all* target specific code in case of
Index: xen-4.1.2-testing/tools/ioemu-qemu-xen/configure
===================================================================
--- xen-4.1.2-testing.orig/tools/ioemu-qemu-xen/configure
+++ xen-4.1.2-testing/tools/ioemu-qemu-xen/configure
@@ -1511,7 +1511,7 @@ bsd)
 ;;
 esac
 
-tools=
+tools="tapdisk-ioemu"
 if test `expr "$target_list" : ".*softmmu.*"` != 0 ; then
   tools="qemu-img\$(EXESUF) $tools"
   if [ "$linux" = "yes" ] ; then
Index: xen-4.1.2-testing/tools/ioemu-qemu-xen/qemu-tool.c
===================================================================
--- xen-4.1.2-testing.orig/tools/ioemu-qemu-xen/qemu-tool.c
+++ xen-4.1.2-testing/tools/ioemu-qemu-xen/qemu-tool.c
@@ -68,7 +68,7 @@ void qemu_bh_delete(QEMUBH *bh)
     qemu_free(bh);
 }
 
-int qemu_set_fd_handler2(int fd,
+int __attribute__((weak)) qemu_set_fd_handler2(int fd,
                          IOCanRWHandler *fd_read_poll,
                          IOHandler *fd_read,
                          IOHandler *fd_write,
Index: xen-4.1.2-testing/tools/ioemu-qemu-xen/tapdisk-ioemu.c
===================================================================
--- xen-4.1.2-testing.orig/tools/ioemu-qemu-xen/tapdisk-ioemu.c
+++ xen-4.1.2-testing/tools/ioemu-qemu-xen/tapdisk-ioemu.c
@@ -12,34 +12,12 @@
 
 extern void qemu_aio_init(void);
 extern void qemu_aio_poll(void);
-extern void bdrv_init(void);
-
-extern void *qemu_mallocz(size_t size);
-extern void qemu_free(void *ptr);
 
 extern void *fd_start;
 
 int domid = 0;
 FILE* logfile;
 
-void term_printf(const char *fmt, ...)
-{
-    va_list ap;
-    va_start(ap, fmt);
-    vprintf(fmt, ap);
-    va_end(ap);
-}
-
-void term_print_filename(const char *filename)
-{
-    term_printf(filename);
-}
-
-
-typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
-typedef int IOCanRWHandler(void *opaque);
-typedef void IOHandler(void *opaque);
-
 typedef struct IOHandlerRecord {
     int fd;
     IOCanRWHandler *fd_read_poll;
@@ -103,7 +81,6 @@ int main(void)
     logfile = stderr;
     
     bdrv_init();
-    qemu_aio_init();
     init_blktap();
 
     /* Daemonize */
@@ -115,8 +92,6 @@ int main(void)
      * completed aio operations.
      */
     while (1) {
-        qemu_aio_poll();
-
         max_fd = -1;
         FD_ZERO(&rfds);
         for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next)