Add support for no-vendor-variant VNDK
When no-vendor-variant VNDK is enabled, the vendor variant of VNDK
libraries are not installed. In this case, the vendor binaries need to
be able to link in the core variant.
Update the linker config so that we export such VNDK libraries to the
proper linker namespaces.
Bug: 119423884
Test: Enable no-vendor-variant VNDK for a dummy VNDK library. Boot and
check the vendor variant does not exist and only the core variant
is used.
Change-Id: I71274fdf61373663603a5fbc3497400420094fcf
diff --git a/rootdir/etc/ld.config.txt b/rootdir/etc/ld.config.txt
index 552d685..35ea445 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 :=