[Qemu-devel] [RFC PATCH v4 5/6] configure: introduce --enable-modules

[Fam Zheng <famz@redhat.com>]

The new option will enable support of shared object build. Otherwise
objects are static linked to executables.

Signed-off-by: Fam Zheng <famz@redhat.com>
---
 Makefile  | 8 ++++++++
 configure | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/Makefile b/Makefile
index 3685bbd..5a2c6f2 100644
--- a/Makefile
+++ b/Makefile
@@ -135,6 +135,7 @@ endif
 
 all: $(DOCS) $(TOOLS) $(HELPERS-y) recurse-all
 
+ifeq ($(CONFIG_MODULES),y)
 define add-modules
 $(foreach o,$(filter %.o,$($1)),$(eval \
 	$(patsubst %.o,%.mo,$o): $o))
@@ -146,6 +147,13 @@ dummy := $(call add-modules,common-obj-m)
 
 modules: $(patsubst %.mo,%$(DSOSUF),$(modules-m))
 all: modules
+else
+block-obj-y += $(block-obj-m)
+common-obj-y += $(common-obj-m)
+block-obj-m :=
+common-obj-m :=
+endif
+
 
 vl.o: QEMU_CFLAGS+=$(GPROF_CFLAGS)
 
diff --git a/configure b/configure
index a2858c2..f1d7fa7 100755
--- a/configure
+++ b/configure
@@ -192,6 +192,7 @@ gcov_tool="gcov"
 EXESUF=""
 DSOSUF=".so"
 LDFLAGS_SHARED="-shared"
+modules="no"
 prefix="/usr/local"
 mandir="\${prefix}/share/man"
 datadir="\${prefix}/share"
@@ -650,6 +651,8 @@ for opt do
   ;;
   --disable-debug-info)
   ;;
+  --enable-modules) modules="yes"
+  ;;
   --cpu=*)
   ;;
   --target-list=*) target_list="$optarg"
@@ -1052,6 +1055,7 @@ echo "  --libdir=PATH            install libraries in PATH"
 echo "  --sysconfdir=PATH        install config in PATH$confsuffix"
 echo "  --localstatedir=PATH     install local state in PATH (set at runtime on win32)"
 echo "  --with-confsuffix=SUFFIX suffix for QEMU data inside datadir and sysconfdir [$confsuffix]"
+echo "  --enable-modules         enable modules support"
 echo "  --enable-debug-tcg       enable TCG debugging"
 echo "  --disable-debug-tcg      disable TCG debugging (default)"
 echo "  --enable-debug-info       enable debugging information (default)"
@@ -3580,6 +3584,7 @@ echo "python            $python"
 if test "$slirp" = "yes" ; then
     echo "smbd              $smbd"
 fi
+echo "module support    $modules"
 echo "host CPU          $cpu"
 echo "host big endian   $bigendian"
 echo "target list       $target_list"
@@ -3697,6 +3702,9 @@ echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
 
 echo "ARCH=$ARCH" >> $config_host_mak
 
+if test "$modules" = "yes"; then
+  echo "CONFIG_MODULES=y" >> $config_host_mak
+fi
 case "$cpu" in
   arm|i386|x86_64|x32|ppc|aarch64)
     # The TCG interpreter currently does not support ld/st optimization.
-- 
1.8.3.1