Merge "Revert^2 "Enable genrule sandboxing by default"" into main

This commit is contained in:
Cole Faust 2023-10-19 23:10:55 +00:00 committed by Gerrit Code Review
commit 2fc2709115
3 changed files with 16 additions and 1 deletions

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@ -1,5 +1,14 @@
# 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

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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) \

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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)))