Merge <uses-library> dependency configs into dexpreopt.config files.
Since Make does not visit modules in topological order of their
<uses-library> dependencies, information from dependencies to the
dexpreopted module has to be passed via dexpreopt.config files. A build
rule for a dexpreopt.config file depends on dexpreopt.config files for
<uses-library> dependencies, and dex_preopt_config_merger.py script
extracts the necessary information from dependency configs and patches
the module's config.
Bug: 132357300
Test: lunch aosp_cf_x86_phone-userdebug && m
Change-Id: Id0b71170a4d2ab1d33059de0e9ad9d7e61f2345e
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 5effac7..019892e 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -277,6 +277,7 @@
LOCAL_SOONG_BUNDLE :=
LOCAL_SOONG_CLASSES_JAR :=
LOCAL_SOONG_DEX_JAR :=
+LOCAL_SOONG_DEXPREOPT_CONFIG :=
LOCAL_SOONG_EXPORT_PROGUARD_FLAGS :=
LOCAL_SOONG_HEADER_JAR :=
LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR :=
diff --git a/core/definitions.mk b/core/definitions.mk
index 4300efe..033ab30 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -632,14 +632,6 @@
endef
###########################################################
-## Convert install path to on-device path.
-###########################################################
-# $(1): install path
-define install-path-to-on-device-path
-$(patsubst $(PRODUCT_OUT)%,%,$(1))
-endef
-
-###########################################################
## The intermediates directory. Where object files go for
## a given target. We could technically get away without
## the "_intermediates" suffix on the directory, but it's
diff --git a/core/dex_preopt_config_merger.py b/core/dex_preopt_config_merger.py
new file mode 100755
index 0000000..ebb99e1
--- /dev/null
+++ b/core/dex_preopt_config_merger.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2021 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+"""
+A tool for merging dexpreopt.config files for <uses-library> dependencies into
+the dexpreopt.config file of the library/app that uses them. This is needed to
+generate class loader context (CLC) for dexpreopt.
+
+In Make there is no topological order when processing different modules, so a
+<uses-library> dependency module may have not been processed yet by the time the
+dependent module is processed. Therefore makefiles communicate the information
+from dependencies via dexpreopt.config files and add file-level dependencies
+from a module dexpreopt.config to its dependency configs. The actual patching
+of configs is done by this script, which is called from the makefiles.
+"""
+
+from __future__ import print_function
+
+import json
+from collections import OrderedDict
+import sys
+
+
+def main():
+ """Program entry point."""
+ if len(sys.argv) < 2:
+ raise SystemExit('usage: %s <main-config> [dep-config ...]' % sys.argv[0])
+
+ # Read all JSON configs.
+ cfgs = []
+ for arg in sys.argv[1:]:
+ with open(arg, 'r') as f:
+ cfgs.append(json.load(f, object_pairs_hook=OrderedDict))
+
+ # The first config is the dexpreopted library/app, the rest are its
+ # <uses-library> dependencies.
+ cfg0 = cfgs[0]
+
+ # Put dependency configs in a map keyed on module name (for easier lookup).
+ uses_libs = {}
+ for cfg in cfgs[1:]:
+ uses_libs[cfg['Name']] = cfg
+
+ # Load the original CLC map.
+ clc_map = cfg0['ClassLoaderContexts']
+
+ # Create a new CLC map that will be a copy of the original one with patched
+ # fields from dependency dexpreopt.config files.
+ clc_map2 = OrderedDict()
+
+ # Patch CLC for each SDK version. Although this should not be necessary for
+ # compatibility libraries (so-called "conditional CLC"), because they all have
+ # known names, known paths in system/framework, and no subcontext. But keep
+ # the loop in case this changes in the future.
+ for sdk_ver in clc_map:
+ clcs = clc_map[sdk_ver]
+ clcs2 = OrderedDict()
+ for lib in clcs:
+ clc = clcs[lib]
+ if lib in uses_libs:
+ ulib = uses_libs[lib]
+ # On-host (build) path to the dependency DEX jar file.
+ clc['Host'] = ulib['BuildPath']
+ # On-device (install) path to the dependency DEX jar file.
+ clc['Device'] = ulib['DexLocation']
+ # CLC of the dependency becomes a subcontext. We only need sub-CLC for
+ # 'any' version because all other versions are for compatibility
+ # libraries, which exist only for apps and not for libraries.
+ clc['Subcontexts'] = ulib['ClassLoaderContexts'].get('any')
+ # Patch the library name in the CLC as well.
+ clcs2[ulib['ProvidesUsesLibrary']] = clc
+ else:
+ # dexpreopt.config for this <uses-library> is not among the script
+ # arguments, which may be the case with compatibility libraries that
+ # don't need patching anyway. Just use the original CLC.
+ clcs2[lib] = clc
+ clc_map2[sdk_ver] = clcs2
+
+ # Overwrite the original class loader context with the patched one.
+ cfg0['ClassLoaderContexts'] = clc_map2
+
+ # Update dexpreopt.config file.
+ with open(sys.argv[1], 'w') as f:
+ f.write(json.dumps(cfgs[0], indent=4, separators=(',', ': ')))
+
+if __name__ == '__main__':
+ main()
diff --git a/core/dex_preopt_odex_install.mk b/core/dex_preopt_odex_install.mk
index b74e047..add3c45 100644
--- a/core/dex_preopt_odex_install.mk
+++ b/core/dex_preopt_odex_install.mk
@@ -189,24 +189,28 @@
my_filtered_optional_uses_libraries := $(filter-out $(INTERNAL_PLATFORM_MISSING_USES_LIBRARIES), \
$(LOCAL_OPTIONAL_USES_LIBRARIES))
- # compatibility libraries are added to class loader context of an app only if
- # targetSdkVersion in the app's manifest is lower than the given SDK version
+ ifeq ($(LOCAL_MODULE_CLASS),APPS)
+ # compatibility libraries are added to class loader context of an app only if
+ # targetSdkVersion in the app's manifest is lower than the given SDK version
- my_dexpreopt_libs_compat_28 := \
- org.apache.http.legacy
+ my_dexpreopt_libs_compat_28 := \
+ org.apache.http.legacy
- my_dexpreopt_libs_compat_29 := \
- android.hidl.base-V1.0-java \
- android.hidl.manager-V1.0-java
+ my_dexpreopt_libs_compat_29 := \
+ android.hidl.base-V1.0-java \
+ android.hidl.manager-V1.0-java
- my_dexpreopt_libs_compat_30 := \
- android.test.base \
- android.test.mock
+ my_dexpreopt_libs_compat_30 := \
+ android.test.base \
+ android.test.mock
- my_dexpreopt_libs_compat := \
- $(my_dexpreopt_libs_compat_28) \
- $(my_dexpreopt_libs_compat_29) \
- $(my_dexpreopt_libs_compat_30)
+ my_dexpreopt_libs_compat := \
+ $(my_dexpreopt_libs_compat_28) \
+ $(my_dexpreopt_libs_compat_29) \
+ $(my_dexpreopt_libs_compat_30)
+ else
+ my_extra_dexpreopt_libs :=
+ endif
my_dexpreopt_libs := $(sort \
$(LOCAL_USES_LIBRARIES) \
@@ -215,13 +219,25 @@
# 1: SDK version
# 2: list of libraries
+ #
+ # Make does not process modules in topological order wrt. <uses-library>
+ # dependencies, therefore we cannot rely on variables to get the information
+ # about dependencies (in particular, their on-device path and class loader
+ # context). This information is communicated via dexpreopt.config files: each
+ # config depends on configs for <uses-library> dependencies of this module,
+ # and the dex_preopt_config_merger.py script reads all configs and inserts the
+ # missing bits from dependency configs into the module config.
+ #
+ # By default on-device path is /system/framework/*.jar, and class loader
+ # subcontext is empty. These values are correct for compatibility libraries,
+ # which are special and not handled by dex_preopt_config_merger.py.
+ #
add_json_class_loader_context = \
$(call add_json_map, $(1)) \
$(foreach lib, $(2),\
$(call add_json_map, $(lib)) \
- $(eval file := $(filter %/$(lib).jar, $(call module-installed-files,$(lib)))) \
- $(call add_json_str, Host, $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib),,COMMON)/javalib.jar) \
- $(call add_json_str, Device, $(call install-path-to-on-device-path,$(file))) \
+ $(call add_json_str, Host, $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib),,COMMON)/javalib.jar) \
+ $(call add_json_str, Device, /system/framework/$(lib).jar) \
$(call add_json_map, Subcontexts, ${$}) $(call end_json_map) \
$(call end_json_map)) \
$(call end_json_map)
@@ -275,12 +291,27 @@
my_dexpreopt_config := $(intermediates)/dexpreopt.config
my_dexpreopt_script := $(intermediates)/dexpreopt.sh
my_dexpreopt_zip := $(intermediates)/dexpreopt.zip
+ my_dexpreopt_config_merger := $(BUILD_SYSTEM)/dex_preopt_config_merger.py
+ # Module dexpreopt.config depends on dexpreopt.config files of each
+ # <uses-library> dependency, because these libraries may be processed after
+ # the current module by Make (there's no topological order), so the dependency
+ # information (paths, class loader context) may not be ready yet by the time
+ # this dexpreopt.config is generated. So it's necessary to add file-level
+ # dependencies between dexpreopt.config files.
+ my_dexpreopt_dep_configs := $(foreach lib, \
+ $(filter-out $(my_dexpreopt_libs_compat),$(LOCAL_USES_LIBRARIES) $(my_filtered_optional_uses_libraries)), \
+ $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib),,)/dexpreopt.config)
+
+ $(my_dexpreopt_config): $(my_dexpreopt_dep_configs) $(my_dexpreopt_config_merger)
$(my_dexpreopt_config): PRIVATE_MODULE := $(LOCAL_MODULE)
$(my_dexpreopt_config): PRIVATE_CONTENTS := $(json_contents)
+ $(my_dexpreopt_config): PRIVATE_DEP_CONFIGS := $(my_dexpreopt_dep_configs)
+ $(my_dexpreopt_config): PRIVATE_CONFIG_MERGER := $(my_dexpreopt_config_merger)
$(my_dexpreopt_config):
@echo "$(PRIVATE_MODULE) dexpreopt.config"
echo -e -n '$(subst $(newline),\n,$(subst ','\'',$(subst \,\\,$(PRIVATE_CONTENTS))))' > $@
+ $(PRIVATE_CONFIG_MERGER) $@ $(PRIVATE_DEP_CONFIGS)
.KATI_RESTAT: $(my_dexpreopt_script)
$(my_dexpreopt_script): PRIVATE_MODULE := $(LOCAL_MODULE)
diff --git a/core/soong_java_prebuilt.mk b/core/soong_java_prebuilt.mk
index 5444d96..c600178 100644
--- a/core/soong_java_prebuilt.mk
+++ b/core/soong_java_prebuilt.mk
@@ -5,6 +5,7 @@
# LOCAL_SOONG_HEADER_JAR
# LOCAL_SOONG_DEX_JAR
# LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR
+# LOCAL_SOONG_DEXPREOPT_CONFIG
ifneq ($(LOCAL_MODULE_MAKEFILE),$(SOONG_ANDROID_MK))
$(call pretty-error,soong_java_prebuilt.mk may only be used from Soong)
@@ -146,6 +147,12 @@
ALL_MODULES.$(my_register_name).AAR := $(LOCAL_SOONG_AAR)
endif
+# Copy dexpreopt.config files from Soong libraries to the location where Make
+# modules can find them.
+ifdef LOCAL_SOONG_DEXPREOPT_CONFIG
+ $(eval $(call copy-one-file,$(LOCAL_SOONG_DEXPREOPT_CONFIG), $(call local-intermediates-dir,)/dexpreopt.config))
+endif
+
javac-check : $(full_classes_jar)
javac-check-$(LOCAL_MODULE) : $(full_classes_jar)
.PHONY: javac-check-$(LOCAL_MODULE)