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Commit 2fc27091 authored by Cole Faust's avatar Cole Faust Committed by Gerrit Code Review
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Merge "Revert^2 "Enable genrule sandboxing by default"" into main

parents ed5abbde b0990300

Changes.md

+9 −0
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# Build System Changes for Android.mk/Android.bp Writers



## Soong genrules are now sandboxed



Previously, soong genrules could access any files in the source tree, without specifying them as

inputs. This makes them incorrect in incremental builds, and incompatible with RBE and Bazel.



Now, genrules are sandboxed so they can only access their listed srcs. Modules denylisted in

genrule/allowlists.go are exempt from this. You can also set `BUILD_BROKEN_GENRULE_SANDBOXING`

in board config to disable this behavior.



## Partitions are no longer affected by previous builds



Partition builds used to include everything in their staging directories, and building an

core/board_config.mk

+1 −0
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@@ -188,6 +188,7 @@ _build_broken_var_list := \ 
  BUILD_BROKEN_VENDOR_PROPERTY_NAMESPACE \

  BUILD_BROKEN_VINTF_PRODUCT_COPY_FILES \

  BUILD_BROKEN_INCORRECT_PARTITION_IMAGES \

  BUILD_BROKEN_GENRULE_SANDBOXING \



_build_broken_var_list += \

  $(foreach m,$(AVAILABLE_BUILD_MODULE_TYPES) \

core/soong_config.mk

+6 −1
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@@ -16,6 +16,10 @@ endif 
# PRODUCT_AFDO_PROFILES takes precedence over product-agnostic profiles in AFDO_PROFILES

ALL_AFDO_PROFILES := $(PRODUCT_AFDO_PROFILES) $(AFDO_PROFILES)



ifneq (,$(filter-out environment undefined,$(origin GENRULE_SANDBOXING)))

  $(error GENRULE_SANDBOXING can only be provided via an environment variable, use BUILD_BROKEN_GENRULE_SANDBOXING to disable genrule sandboxing in board config)

endif



ifeq ($(WRITE_SOONG_VARIABLES),true)



# Create soong.variables with copies of makefile settings.  Runs every build,
@@ -281,7 +285,8 @@ $(call add_json_list, BuildBrokenPluginValidation, $(BUILD_BROKEN_PLUGIN 
$(call add_json_bool, BuildBrokenClangProperty,            $(filter true,$(BUILD_BROKEN_CLANG_PROPERTY)))

$(call add_json_bool, BuildBrokenClangAsFlags,             $(filter true,$(BUILD_BROKEN_CLANG_ASFLAGS)))

$(call add_json_bool, BuildBrokenClangCFlags,              $(filter true,$(BUILD_BROKEN_CLANG_CFLAGS)))

$(call add_json_bool, GenruleSandboxing,                   $(filter true,$(GENRULE_SANDBOXING)))

# Use the value of GENRULE_SANDBOXING if set, otherwise use the inverse of BUILD_BROKEN_GENRULE_SANDBOXING

$(call add_json_bool, GenruleSandboxing,                   $(if $(GENRULE_SANDBOXING),$(filter true,$(GENRULE_SANDBOXING)),$(if $(filter true,$(BUILD_BROKEN_GENRULE_SANDBOXING)),,true)))

$(call add_json_bool, BuildBrokenEnforceSyspropOwner,      $(filter true,$(BUILD_BROKEN_ENFORCE_SYSPROP_OWNER)))

$(call add_json_bool, BuildBrokenTrebleSyspropNeverallow,  $(filter true,$(BUILD_BROKEN_TREBLE_SYSPROP_NEVERALLOW)))

$(call add_json_bool, BuildBrokenUsesSoongPython2Modules,  $(filter true,$(BUILD_BROKEN_USES_SOONG_PYTHON2_MODULES)))