Preserve <uses-library> order in dexpreopt.config files.
Library order is important because it is used to construct class loader
context, which is then written into OAT/ODEX files and chacked against
class loader context constructed by PackageManager on the device. If the
orders are different, dexpreopted code is rejected.
This CL fixes a few problems that caused reordering:
- 'filter' function arguments are swapped so that patterns list comes
first, and the library list second
- JSON representation of class loader context is changed to avoid
unmarshaling it to Go maps, which may reorder keys
- library list is no longer sorted (it's unclear why it was sorted)
Bug: 132357300
Test: lunch cf_x86_64_phone-userdebug && m && launch_cvd \
adb wait-for-device && adb root && adb logcat \
| grep -E 'ClassLoaderContext [a-z ]+ mismatch'
# empty grep output, no errors
Change-Id: Ie76996d497e60da0948f1879d6db589ff3e968a2
diff --git a/common/json.mk b/common/json.mk
index ba8ffa7..e376aab 100644
--- a/common/json.mk
+++ b/common/json.mk
@@ -24,7 +24,10 @@
add_json_csv =$= $(call add_json_val,$(1),$(call csv_to_json_list,$(strip $(2))))
add_json_bool =$= $(call add_json_val,$(1),$(if $(strip $(2)),true,false))
add_json_map =$= $(eval _json_contents := $$(_json_contents)$$(_json_indent)"$$(strip $$(1))": {$$(newline))$(json_increase_indent)
+add_json_map_anon =$= $(eval _json_contents := $$(_json_contents)$$(_json_indent){$$(newline))$(json_increase_indent)
end_json_map =$= $(json_decrease_indent)$(eval _json_contents := $$(_json_contents)$$(if $$(filter %$$(comma),$$(lastword $$(_json_contents))),__SV_END)$$(_json_indent)},$$(newline))
+add_json_array =$= $(eval _json_contents := $$(_json_contents)$$(_json_indent)"$$(strip $$(1))": [$$(newline))$(json_increase_indent)
+end_json_array =$= $(json_decrease_indent)$(eval _json_contents := $$(_json_contents)$$(if $$(filter %$$(comma),$$(lastword $$(_json_contents))),__SV_END)$$(_json_indent)],$$(newline))
# Clears _json_contents to start a new json file
json_start =$= $(eval _json_contents := {$$(newline))$(eval _json_indent := $$(4space))
diff --git a/core/dex_preopt_config_merger.py b/core/dex_preopt_config_merger.py
index 1bd1519..4efcc17 100755
--- a/core/dex_preopt_config_merger.py
+++ b/core/dex_preopt_config_merger.py
@@ -67,24 +67,25 @@
# 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]
+ clcs2 = []
+ for clc in clcs:
+ lib = clc['Name']
if lib in uses_libs:
ulib = uses_libs[lib]
+ # The real <uses-library> name (may be different from the module name).
+ clc['Name'] = ulib['ProvidesUsesLibrary']
# 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
+ pass
+ clcs2.append(clc)
clc_map2[sdk_ver] = clcs2
# Overwrite the original class loader context with the patched one.
diff --git a/core/dex_preopt_odex_install.mk b/core/dex_preopt_odex_install.mk
index 6f6ac28..f9a9ba7 100644
--- a/core/dex_preopt_odex_install.mk
+++ b/core/dex_preopt_odex_install.mk
@@ -196,8 +196,8 @@
# to load dexpreopt code on device. We should fix this, either by deferring
# dependency computation until the full list of product packages is known, or
# by adding product-specific lists of missing libraries.
- my_filtered_optional_uses_libraries := $(filter $(my_filtered_optional_uses_libraries), \
- $(PRODUCT_PACKAGES))
+ my_filtered_optional_uses_libraries := $(filter $(PRODUCT_PACKAGES), \
+ $(my_filtered_optional_uses_libraries))
ifeq ($(LOCAL_MODULE_CLASS),APPS)
# compatibility libraries are added to class loader context of an app only if
@@ -222,10 +222,9 @@
my_dexpreopt_libs_compat :=
endif
- my_dexpreopt_libs := $(sort \
+ my_dexpreopt_libs := \
$(LOCAL_USES_LIBRARIES) \
- $(my_filtered_optional_uses_libraries) \
- )
+ $(my_filtered_optional_uses_libraries)
# 1: SDK version
# 2: list of libraries
@@ -243,14 +242,15 @@
# which are special and not handled by dex_preopt_config_merger.py.
#
add_json_class_loader_context = \
- $(call add_json_map, $(1)) \
+ $(call add_json_array, $(1)) \
$(foreach lib, $(2),\
- $(call add_json_map, $(lib)) \
+ $(call add_json_map_anon) \
+ $(call add_json_str, Name, $(lib)) \
$(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 add_json_val, Subcontexts, null) \
$(call end_json_map)) \
- $(call end_json_map)
+ $(call end_json_array)
# Record dex-preopt config.
DEXPREOPT.$(LOCAL_MODULE).DEX_PREOPT := $(LOCAL_DEX_PREOPT)