[Xen-devel] [PATCH] [RFC] Add libxen to overall xen build

[Jim Fehlig <jfehlig@xxxxxxxxxx>]

libxen (c-bindings to new XenAPI) is not integrated into the overall xen 
build.  This patch enables building of libxen when 'LIBXENAPI_BINDINGS 
?= y' in Config.mk.
Headers are installed in $(DESTDIR)/usr/include/xen/api and libs in 
$(DESTDIR/usr/$(LIBDIR).  I did not include the test_bindings program 
since it introduces yet another dependency - libcurl.
Regards,
Jim

# HG changeset patch
# User jfehlig@xxxxxxxxxxxxxxxxxxxxxxxxx
# Date 1164230707 25200
# Node ID 234b8e33a4b4a923b816b43c91f76bd4b97a36cf
# Parent  08007423788ab86753515756b8142b075162c336
Add libxen to overall xen build via a config option in Config.mk.

Signed-off-by: Jim Fehlig <jfehlig@xxxxxxxxxx>

diff -r 08007423788a -r 234b8e33a4b4 Config.mk
--- a/Config.mk Tue Nov 21 16:14:53 2006 +0000
+++ b/Config.mk Wed Nov 22 14:25:07 2006 -0700
@@ -71,5 +71,6 @@ XENSTAT_XENTOP ?= y
 XENSTAT_XENTOP ?= y
 
 VTPM_TOOLS ?= n
+LIBXENAPI_BINDINGS ?= n
 
 -include $(XEN_ROOT)/.config
diff -r 08007423788a -r 234b8e33a4b4 tools/Makefile
--- a/tools/Makefile    Tue Nov 21 16:14:53 2006 +0000
+++ b/tools/Makefile    Wed Nov 22 14:25:07 2006 -0700
@@ -19,6 +19,7 @@ SUBDIRS-y += libaio
 SUBDIRS-y += libaio
 SUBDIRS-y += blktap
 SUBDIRS-y += libfsimage
+SUBDIRS-$(LIBXENAPI_BINDINGS) += libxen
 
 # These don't cross-compile
 ifeq ($(XEN_COMPILE_ARCH),$(XEN_TARGET_ARCH))
diff -r 08007423788a -r 234b8e33a4b4 tools/libxen/Makefile
--- a/tools/libxen/Makefile     Tue Nov 21 16:14:53 2006 +0000
+++ b/tools/libxen/Makefile     Wed Nov 22 14:25:07 2006 -0700
@@ -15,23 +15,55 @@
 # License along with this library; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 #
+XEN_ROOT=../..
+include $(XEN_ROOT)/tools/Rules.mk
+
+MAJOR = 0.1
+MINOR = 0
 
 CFLAGS = -Iinclude                     \
-         $(shell xml2-config --cflags) \
+        $(shell xml2-config --cflags) \
          $(shell curl-config --cflags) \
          -W -Wall -Wmissing-prototypes -Werror -std=c99 -O2 -fPIC
 
 LDFLAGS = $(shell xml2-config --libs) \
           $(shell curl-config --libs)
 
-test/test_bindings: test/test_bindings.o src/libxen.so
-       $(CC) $(LDFLAGS) -o $@ $< -L src -lxen
+LIBXENAPI_HDRS = $(wildcard include/*.h)
+LIBXENAPI_OBJS = $(patsubst %.c, %.o, $(wildcard src/*.c))
 
-src/libxen.so: $(patsubst %.c, %.o, $(wildcard src/*.c))
-       $(CC) -shared -o $@ $^
+
+.PHONY: all
+all: libxenapi.so libxenapi.a
+
+libxenapi.so: libxenapi.so.$(MAJOR)
+       ln -sf $< $@
+
+libxenapi.so.$(MAJOR): libxenapi.so.$(MAJOR).$(MINOR)
+       ln -sf $< $@
+
+libxenapi.so.$(MAJOR).$(MINOR): $(LIBXENAPI_OBJS)
+       $(CC) $(CFLAGS) $(LDFLAGS) -Wl,$(SONAME_LDFLAG) 
-Wl,libxenapi.so.$(MAJOR) $(SHLIB_CFLAGS) -o $@ $^
+
+libxenapi.a: $(LIBXENAPI_OBJS)
+       $(AR) rcs libxenapi.a $^
+
+
+.PHONY: install
+install: all
+       $(INSTALL_DIR) -p $(DESTDIR)/usr/include/xen/api
+       $(INSTALL_DIR) -p $(DESTDIR)/usr/$(LIBDIR)
+       $(INSTALL_PROG) libxenapi.so.$(MAJOR).$(MINOR) $(DESTDIR)/usr/$(LIBDIR)
+       ln -sf libxenapi.so.$(MAJOR).$(MINOR) 
$(DESTDIR)/usr/$(LIBDIR)/libxenapi.so.$(MAJOR)
+       ln -sf libxenapi.so.$(MAJOR) $(DESTDIR)/usr/$(LIBDIR)/libxenapi.so
+       $(INSTALL_DATA) libxenapi.a $(DESTDIR)/usr/$(LIBDIR)
+       for i in $(LIBXENAPI_HDRS); do \
+           $(INSTALL_DATA) $$i $(DESTDIR)/usr/include/xen/api; \
+       done
 
 .PHONY: clean
 clean:
        rm -f `find -name *.o`
-       rm -f src/libxen.so
+       rm -f libxenapi.so*
+       rm -f libxenapi.a
        rm -f test/test_bindings

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