Dex2oat support for multiple oat file and image file outputs.

Multiple changes to dex2oat and the runtime to support a --multi-image
option. This generates a separate oat file and image file output for
each dex file input.

Change-Id: Ie1d6f0b8afa8aed5790065b8c2eb177990c60129
diff --git a/build/Android.oat.mk b/build/Android.oat.mk
index 50600ef..884f698 100644
--- a/build/Android.oat.mk
+++ b/build/Android.oat.mk
@@ -42,6 +42,7 @@
 # $(3): 2ND_ or undefined, 2ND_ for 32-bit host builds.
 # $(4): wrapper, e.g., valgrind.
 # $(5): dex2oat suffix, e.g, valgrind requires 32 right now.
+# $(6): multi-image.
 # NB depending on HOST_CORE_DEX_LOCATIONS so we are sure to have the dex files in frameworks for
 # run-test --no-image
 define create-core-oat-host-rules
@@ -92,14 +93,25 @@
     $$(error found $(2) expected pic or no-pic)
   endif
 
-  core_image_name := $($(3)HOST_CORE_IMG_OUT_BASE)$$(core_infix)$$(core_pic_infix)$(4)$(CORE_IMG_SUFFIX)
-  core_oat_name := $($(3)HOST_CORE_OAT_OUT_BASE)$$(core_infix)$$(core_pic_infix)$(4)$(CORE_OAT_SUFFIX)
+  # If $(6) is true, generate a multi-image.
+  ifeq ($(6),true)
+    core_multi_infix := -multi
+    core_multi_param := --multi-image --no-inline-from=core-oj-hostdex.jar
+    core_multi_group := _multi
+  else
+    core_multi_infix :=
+    core_multi_param :=
+    core_multi_group :=
+  endif
+
+  core_image_name := $($(3)HOST_CORE_IMG_OUT_BASE)$$(core_infix)$$(core_pic_infix)$$(core_multi_infix)$(4)$(CORE_IMG_SUFFIX)
+  core_oat_name := $($(3)HOST_CORE_OAT_OUT_BASE)$$(core_infix)$$(core_pic_infix)$$(core_multi_infix)$(4)$(CORE_OAT_SUFFIX)
 
   # Using the bitness suffix makes it easier to add as a dependency for the run-test mk.
   ifeq ($(3),)
-    $(4)HOST_CORE_IMAGE_$(1)_$(2)_64 := $$(core_image_name)
+    $(4)HOST_CORE_IMAGE_$(1)_$(2)$$(core_multi_group)_64 := $$(core_image_name)
   else
-    $(4)HOST_CORE_IMAGE_$(1)_$(2)_32 := $$(core_image_name)
+    $(4)HOST_CORE_IMAGE_$(1)_$(2)$$(core_multi_group)_32 := $$(core_image_name)
   endif
   $(4)HOST_CORE_IMG_OUTS += $$(core_image_name)
   $(4)HOST_CORE_OAT_OUTS += $$(core_oat_name)
@@ -111,6 +123,7 @@
 $$(core_image_name): PRIVATE_CORE_COMPILE_OPTIONS := $$(core_compile_options)
 $$(core_image_name): PRIVATE_CORE_IMG_NAME := $$(core_image_name)
 $$(core_image_name): PRIVATE_CORE_OAT_NAME := $$(core_oat_name)
+$$(core_image_name): PRIVATE_CORE_MULTI_PARAM := $$(core_multi_param)
 $$(core_image_name): $$(HOST_CORE_DEX_LOCATIONS) $$(core_dex2oat_dependency)
 	@echo "host dex2oat: $$@"
 	@mkdir -p $$(dir $$@)
@@ -122,7 +135,7 @@
 	  --base=$$(LIBART_IMG_HOST_BASE_ADDRESS) --instruction-set=$$($(3)ART_HOST_ARCH) \
 	  $$(LOCAL_$(3)DEX2OAT_HOST_INSTRUCTION_SET_FEATURES_OPTION) \
 	  --host --android-root=$$(HOST_OUT) --include-patch-information --generate-debug-info \
-	  $$(PRIVATE_CORE_COMPILE_OPTIONS)
+	  $$(PRIVATE_CORE_MULTI_PARAM) $$(PRIVATE_CORE_COMPILE_OPTIONS)
 
 $$(core_oat_name): $$(core_image_name)
 
@@ -138,32 +151,40 @@
 # $(1): compiler - default, optimizing, jit, interpreter or interpreter-access-checks.
 # $(2): wrapper.
 # $(3): dex2oat suffix.
+# $(4): multi-image.
 define create-core-oat-host-rule-combination
-  $(call create-core-oat-host-rules,$(1),no-pic,,$(2),$(3))
-  $(call create-core-oat-host-rules,$(1),pic,,$(2),$(3))
+  $(call create-core-oat-host-rules,$(1),no-pic,,$(2),$(3),$(4))
+  $(call create-core-oat-host-rules,$(1),pic,,$(2),$(3),$(4))
 
   ifneq ($(HOST_PREFER_32_BIT),true)
-    $(call create-core-oat-host-rules,$(1),no-pic,2ND_,$(2),$(3))
-    $(call create-core-oat-host-rules,$(1),pic,2ND_,$(2),$(3))
+    $(call create-core-oat-host-rules,$(1),no-pic,2ND_,$(2),$(3),$(4))
+    $(call create-core-oat-host-rules,$(1),pic,2ND_,$(2),$(3),$(4))
   endif
 endef
 
-$(eval $(call create-core-oat-host-rule-combination,default,,))
-$(eval $(call create-core-oat-host-rule-combination,optimizing,,))
-$(eval $(call create-core-oat-host-rule-combination,interpreter,,))
-$(eval $(call create-core-oat-host-rule-combination,interp-ac,,))
-$(eval $(call create-core-oat-host-rule-combination,jit,,))
+$(eval $(call create-core-oat-host-rule-combination,default,,,false))
+$(eval $(call create-core-oat-host-rule-combination,optimizing,,,false))
+$(eval $(call create-core-oat-host-rule-combination,interpreter,,,false))
+$(eval $(call create-core-oat-host-rule-combination,interp-ac,,,false))
+$(eval $(call create-core-oat-host-rule-combination,jit,,,false))
+$(eval $(call create-core-oat-host-rule-combination,default,,,true))
+$(eval $(call create-core-oat-host-rule-combination,optimizing,,,true))
+$(eval $(call create-core-oat-host-rule-combination,interpreter,,,true))
+$(eval $(call create-core-oat-host-rule-combination,interp-ac,,,true))
+$(eval $(call create-core-oat-host-rule-combination,jit,,,true))
 
 valgrindHOST_CORE_IMG_OUTS :=
 valgrindHOST_CORE_OAT_OUTS :=
-$(eval $(call create-core-oat-host-rule-combination,default,valgrind,32))
-$(eval $(call create-core-oat-host-rule-combination,optimizing,valgrind,32))
-$(eval $(call create-core-oat-host-rule-combination,interpreter,valgrind,32))
-$(eval $(call create-core-oat-host-rule-combination,interp-ac,valgrind,32))
-$(eval $(call create-core-oat-host-rule-combination,jit,valgrind,32))
+$(eval $(call create-core-oat-host-rule-combination,default,valgrind,32,false))
+$(eval $(call create-core-oat-host-rule-combination,optimizing,valgrind,32,false))
+$(eval $(call create-core-oat-host-rule-combination,interpreter,valgrind,32,false))
+$(eval $(call create-core-oat-host-rule-combination,interp-ac,valgrind,32,false))
+$(eval $(call create-core-oat-host-rule-combination,jit,valgrind,32,false))
 
 valgrind-test-art-host-dex2oat-host: $(valgrindHOST_CORE_IMG_OUTS)
 
+test-art-host-dex2oat-host: $(HOST_CORE_IMG_OUTS)
+
 define create-core-oat-target-rules
   core_compile_options :=
   core_image_name :=