Merge "Add support for no-vendor-variant VNDK"
am: c3e96512c0

Change-Id: Id4555b4727feb615b7e250ed2f0903380e87bd98
diff --git a/rootdir/etc/ld.config.txt b/rootdir/etc/ld.config.txt
index 641a536..927587b 100644
--- a/rootdir/etc/ld.config.txt
+++ b/rootdir/etc/ld.config.txt
@@ -377,7 +377,7 @@
 # (LL-NDK only) access.
 ###############################################################################
 [vendor]
-additional.namespaces = runtime,system,vndk
+additional.namespaces = runtime,system,vndk%VNDK_IN_SYSTEM_NS%
 
 ###############################################################################
 # "default" namespace
@@ -418,8 +418,9 @@
 namespace.default.asan.permitted.paths += /data/asan/vendor
 namespace.default.asan.permitted.paths +=           /vendor
 
-namespace.default.links = system,vndk
+namespace.default.links = system,vndk%VNDK_IN_SYSTEM_NS%
 namespace.default.link.system.shared_libs = %LLNDK_LIBRARIES%
+namespace.default.link.vndk_in_system.shared_libs = %VNDK_USING_CORE_VARIANT_LIBRARIES%
 namespace.default.link.vndk.shared_libs  = %VNDK_SAMEPROCESS_LIBRARIES%
 namespace.default.link.vndk.shared_libs += %VNDK_CORE_LIBRARIES%
 
@@ -468,14 +469,18 @@
 
 # When these NDK libs are required inside this namespace, then it is redirected
 # to the system namespace. This is possible since their ABI is stable across
-# Android releases.
-namespace.vndk.links = system,default
+# Android releases.  The links here should be identical to that of the
+# 'vndk_in_system' namespace, except for the link between 'vndk' and
+# 'vndk_in_system'.
+namespace.vndk.links = system,default%VNDK_IN_SYSTEM_NS%
 
 namespace.vndk.link.system.shared_libs  = %LLNDK_LIBRARIES%
 namespace.vndk.link.system.shared_libs += %SANITIZER_RUNTIME_LIBRARIES%
 
 namespace.vndk.link.default.allow_all_shared_libs = true
 
+namespace.vndk.link.vndk_in_system.shared_libs = %VNDK_USING_CORE_VARIANT_LIBRARIES%
+
 ###############################################################################
 # "system" namespace
 #
@@ -504,6 +509,51 @@
 namespace.system.link.runtime.shared_libs += libandroidicu.so
 
 ###############################################################################
+# "vndk_in_system" namespace
+#
+# This namespace is where no-vendor-variant VNDK libraries are loaded for a
+# vendor process.  Note that we do not simply export these libraries from
+# "system" namespace, because in some case both the core variant and the
+# vendor variant of a VNDK library may be loaded.  In such case, we do not
+# want to eliminate double-loading because doing so means the global states
+# of the library would be shared.
+#
+# Only the no-vendor-variant VNDK libraries are whitelisted in this namespace.
+# This is to ensure that we do not load libraries needed by no-vendor-variant
+# VNDK libraries into vndk_in_system namespace.
+###############################################################################
+namespace.vndk_in_system.isolated = true
+namespace.vndk_in_system.visible = true
+
+# The search paths here should be kept the same as that of the 'system'
+# namespace.
+namespace.vndk_in_system.search.paths  = /system/${LIB}
+namespace.vndk_in_system.search.paths += /%PRODUCT%/${LIB}
+namespace.vndk_in_system.search.paths += /%PRODUCT_SERVICES%/${LIB}
+
+namespace.vndk_in_system.asan.search.paths  = /data/asan/system/${LIB}
+namespace.vndk_in_system.asan.search.paths +=           /system/${LIB}
+namespace.vndk_in_system.asan.search.paths += /data/asan/product/${LIB}
+namespace.vndk_in_system.asan.search.paths +=           /%PRODUCT%/${LIB}
+namespace.vndk_in_system.asan.search.paths += /data/asan/product_services/${LIB}
+namespace.vndk_in_system.asan.search.paths +=           /%PRODUCT_SERVICES%/${LIB}
+
+namespace.vndk_in_system.whitelisted = %VNDK_USING_CORE_VARIANT_LIBRARIES%
+
+# The links here should be identical to that of the 'vndk' namespace, with the
+# following exception:
+#   1. 'vndk_in_system' needs to be freely linked back to 'vndk'.
+#   2. 'vndk_in_system' does not need to link to 'default', as any library that
+#      requires anything vendor would not be a vndk_in_system library.
+namespace.vndk_in_system.links = vndk,system
+
+namespace.vndk_in_system.link.system.shared_libs  = %LLNDK_LIBRARIES%
+namespace.vndk_in_system.link.system.shared_libs += %SANITIZER_RUNTIME_LIBRARIES%
+
+namespace.vndk_in_system.link.vndk.allow_all_shared_libs = true
+
+
+###############################################################################
 # Namespace config for native tests that need access to both system and vendor
 # libraries. This replicates the default linker config (done by
 # init_default_namespace_no_config in bionic/linker/linker.cpp), except that it
diff --git a/rootdir/update_and_install_ld_config.mk b/rootdir/update_and_install_ld_config.mk
index 852e234..912a73e 100644
--- a/rootdir/update_and_install_ld_config.mk
+++ b/rootdir/update_and_install_ld_config.mk
@@ -23,6 +23,11 @@
 lib_list_from_prebuilts := $(strip $(lib_list_from_prebuilts))
 libz_is_llndk := $(strip $(libz_is_llndk))
 
+my_vndk_use_core_variant := $(TARGET_VNDK_USE_CORE_VARIANT)
+ifeq ($(lib_list_from_prebuilts),true)
+my_vndk_use_core_variant := false
+endif
+
 compatibility_check_script := \
   $(LOCAL_PATH)/ld_config_backward_compatibility_check.py
 intermediates_dir := $(call intermediates-dir-for,ETC,$(LOCAL_MODULE))
@@ -35,6 +40,9 @@
 vndksp_libraries_file := $(library_lists_dir)/vndksp.libraries.$(vndk_version).txt
 vndkcore_libraries_file := $(library_lists_dir)/vndkcore.libraries.txt
 vndkprivate_libraries_file := $(library_lists_dir)/vndkprivate.libraries.txt
+ifeq ($(my_vndk_use_core_variant),true)
+vndk_using_core_variant_libraries_file := $(library_lists_dir)/vndk_using_core_variant.libraries.$(vndk_version).txt
+endif
 
 sanitizer_runtime_libraries := $(call normalize-path-list,$(addsuffix .so,\
   $(ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
@@ -68,6 +76,9 @@
 $(eval $(call write-libs-to-file,$(vndksp_libraries_list),$(vndksp_libraries_file)))
 $(eval $(call write-libs-to-file,$(VNDK_CORE_LIBRARIES),$(vndkcore_libraries_file)))
 $(eval $(call write-libs-to-file,$(VNDK_PRIVATE_LIBRARIES),$(vndkprivate_libraries_file)))
+ifeq ($(my_vndk_use_core_variant),true)
+$(eval $(call write-libs-to-file,$(VNDK_USING_CORE_VARIANT_LIBRARIES),$(vndk_using_core_variant_libraries_file)))
+endif
 endif # ifneq ($(lib_list_from_prebuilts),true)
 
 # Given a file with a list of libs, filter-out the VNDK private libraries
@@ -94,6 +105,10 @@
 ifeq ($(check_backward_compatibility),true)
 deps += $(compatibility_check_script)
 endif
+ifeq ($(my_vndk_use_core_variant),true)
+$(LOCAL_BUILT_MODULE): PRIVATE_VNDK_USING_CORE_VARIANT_LIBRARIES_FILE := $(vndk_using_core_variant_libraries_file)
+deps += $(vndk_using_core_variant_libraries_file)
+endif
 
 $(LOCAL_BUILT_MODULE): $(ld_config_template) $(deps)
 	@echo "Generate: $< -> $@"
@@ -109,6 +124,20 @@
 	$(call private-filter-out-private-libs,$(PRIVATE_VNDK_CORE_LIBRARIES_FILE),$(PRIVATE_INTERMEDIATES_DIR)/vndkcore_filtered)
 	$(hide) sed -i.bak -e "s?%VNDK_CORE_LIBRARIES%?$$(cat $(PRIVATE_INTERMEDIATES_DIR)/vndkcore_filtered)?g" $@
 
+ifeq ($(my_vndk_use_core_variant),true)
+	$(call private-filter-out-private-libs,$(PRIVATE_VNDK_USING_CORE_VARIANT_LIBRARIES_FILE),$(PRIVATE_INTERMEDIATES_DIR)/vndk_using_core_variant_filtered)
+	$(hide) sed -i.bak -e "s?%VNDK_IN_SYSTEM_NS%?,vndk_in_system?g" $@
+	$(hide) sed -i.bak -e "s?%VNDK_USING_CORE_VARIANT_LIBRARIES%?$$(cat $(PRIVATE_INTERMEDIATES_DIR)/vndk_using_core_variant_filtered)?g" $@
+else
+	$(hide) sed -i.bak -e "s?%VNDK_IN_SYSTEM_NS%??g" $@
+	# Unlike LLNDK or VNDK-SP, VNDK_USING_CORE_VARIANT_LIBRARIES can be nothing
+	# if TARGET_VNDK_USE_CORE_VARIANT is not set.  In this case, we need to remove
+	# the entire line in the linker config so that we are not left with a line
+	# like:
+	#   namespace.sphal.link.default.shared_libs +=
+	$(hide) sed -i.bak -e "s?^.*\+= %VNDK_USING_CORE_VARIANT_LIBRARIES%\$$??" $@
+endif
+
 	$(hide) echo -n > $(PRIVATE_INTERMEDIATES_DIR)/private_llndk && \
 	cat $(PRIVATE_VNDK_PRIVATE_LIBRARIES_FILE) | \
 	xargs -n 1 -I privatelib bash -c "(grep privatelib $(PRIVATE_LLNDK_LIBRARIES_FILE) || true) >> $(PRIVATE_INTERMEDIATES_DIR)/private_llndk" && \
@@ -146,3 +175,10 @@
 llndk_libraries_list :=
 vndksp_libraries_list :=
 write-libs-to-file :=
+
+ifeq ($(my_vndk_use_core_variant),true)
+vndk_using_core_variant_libraries_file :=
+vndk_using_core_variant_libraries_list :=
+endif
+
+my_vndk_use_core_variant :=