aidl_interface

name , srcs , defaults , host_supported , backend.cpp , backend.java , backend.ndk , backend.rust , bazel_module , compile_multilib , debug_ramdisk , device_specific , dist , dists , double_loadable , dumpapi , enabled , flags , frozen , gen_trace , headers , host_required , imports , include_dirs , init_rc , licenses , local_include_dir , min_sdk_version , native_bridge_supported , odm_available , owner , product_available , product_specific , product_variables.always_use_prebuilt_sdks , product_variables.arc , product_variables.debuggable , product_variables.flatten_apex , product_variables.malloc_not_svelte , product_variables.native_coverage , product_variables.pdk , product_variables.unbundled_build , proprietary , ramdisk , recovery , recovery_available , required , soc_specific , stability , system_ext_specific , target.android , target.host , target_required , unstable , vendor , vendor_available , vendor_ramdisk , versions , versions_with_info , vintf_fragments , visibility , vndk , vndk_use_version
 name string, The name of the module. Must be unique across all modules.
 srcs list of string, List of .aidl files which compose this interface.
 defaults list of string
 host_supported bool, Whether the library can be used on host
⊕backend.cpp
Backend of the compiler generating code for C++ clients using libbinder (unstable C++ interface) When enabled, this creates a target called "<name>-cpp".
 additional_shared_libraries list of string, Must be NDK libraries, for stable types.
 cflags list of string, cflags to forward to native compilation. This is expected to be used more for AIDL compiler developers than being actually practical.
 gen_log bool, Whether to generate additional code for gathering information about the transactions. Default: false
 enabled bool, Whether to generate code in the corresponding backend. Default: 

  - for Java/NDK/CPP backends - True
  - for Rust backend - False
 apex_available list of string
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module.
 gen_trace bool, Whether tracing should be added to the interface.
⊕vndk
 enabled bool, declared as a VNDK or VNDK-SP module. The vendor variant will be installed in /system instead of /vendor partition. `vendor_available` and `product_available` must be explicitly set to either true or false together with `vndk: {enabled: true}`.
 support_system_process bool, declared as a VNDK-SP module, which is a subset of VNDK. `vndk: { enabled: true }` must set together. All these modules are allowed to link to VNDK-SP or LL-NDK modules only. Other dependency will cause link-type errors. If `support_system_process` is not set or set to false, the module is VNDK-core and can link to other VNDK-core, VNDK-SP or LL-NDK modules only.
 private bool, declared as a VNDK-private module. This module still creates the vendor and product variants refering to the `vendor_available: true` and `product_available: true` properties. However, it is only available to the other VNDK modules but not to the non-VNDK vendor or product modules.
 extends string, Extending another module
⊕backend.java
Backend of the compiler generating code for Java clients. When enabled, this creates a target called "<name>-java".
 sdk_version string, Set to the version of the sdk to compile against Default: system_current
 platform_apis bool, Whether to compile against platform APIs instead of an SDK.
 gen_rpc bool, Whether RPC features are enabled (requires API level 32) TODO(b/175819535): enable this automatically?
 enabled bool, Whether to generate code in the corresponding backend. Default: 

  - for Java/NDK/CPP backends - True
  - for Rust backend - False
 apex_available list of string
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module.
 gen_trace bool, Whether tracing should be added to the interface.
⊕lint
Controls for running Android Lint on the module.
 enabled bool, If true, run Android Lint on the module. Defaults to true.
 flags list of string, Flags to pass to the Android Lint tool.
 fatal_checks list of string, Checks that should be treated as fatal.
 error_checks list of string, Checks that should be treated as errors.
 warning_checks list of string, Checks that should be treated as warnings.
 disabled_checks list of string, Checks that should be skipped.
 extra_check_modules list of string, Modules that provide extra lint checks
 baseline_filename string, Name of the file that lint uses as the baseline. Defaults to "lint-baseline.xml".
 strict_updatability_linting bool, If true, baselining updatability lint checks (e.g. NewApi) is prohibited. Defaults to false.
 test bool, Treat the code in this module as test code for @VisibleForTesting enforcement. This will be true by default for test module types, false otherwise. If soong gets support for testonly, this flag should be replaced with that.
⊕backend.ndk
Backend of the compiler generating code for C++ clients using libbinder_ndk (stable C interface to system's libbinder) When enabled, this creates a target called "<name>-V<ver>-ndk" (for both apps and platform) and "<name>-V<ver>-ndk_platform" (for platform only). TODO(b/161456198): remove the ndk_platform backend as the ndk backend can serve the same purpose.
 sdk_version string, Set to the version of the sdk to compile against, for the NDK variant. Default: current
 apps_enabled bool, If set to false, the ndk backend is exclusive to platform and is not available to applications. Default is true (i.e. available to both applications and platform).
 additional_shared_libraries list of string, Must be NDK libraries, for stable types.
 cflags list of string, cflags to forward to native compilation. This is expected to be used more for AIDL compiler developers than being actually practical.
 gen_log bool, Whether to generate additional code for gathering information about the transactions. Default: false
 enabled bool, Whether to generate code in the corresponding backend. Default: 

  - for Java/NDK/CPP backends - True
  - for Rust backend - False
 apex_available list of string
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module.
 gen_trace bool, Whether tracing should be added to the interface.
⊕vndk
 enabled bool, declared as a VNDK or VNDK-SP module. The vendor variant will be installed in /system instead of /vendor partition. `vendor_available` and `product_available` must be explicitly set to either true or false together with `vndk: {enabled: true}`.
 support_system_process bool, declared as a VNDK-SP module, which is a subset of VNDK. `vndk: { enabled: true }` must set together. All these modules are allowed to link to VNDK-SP or LL-NDK modules only. Other dependency will cause link-type errors. If `support_system_process` is not set or set to false, the module is VNDK-core and can link to other VNDK-core, VNDK-SP or LL-NDK modules only.
 private bool, declared as a VNDK-private module. This module still creates the vendor and product variants refering to the `vendor_available: true` and `product_available: true` properties. However, it is only available to the other VNDK modules but not to the non-VNDK vendor or product modules.
 extends string, Extending another module
⊕backend.rust
Backend of the compiler generating code for Rust clients. When enabled, this creates a target called "<name>-rust".
 enabled bool, Whether to generate code in the corresponding backend. Default: 

  - for Java/NDK/CPP backends - True
  - for Rust backend - False
 apex_available list of string
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module.
 gen_trace bool, Whether tracing should be added to the interface.
⊕bazel_module bazelModuleProperties
In "Bazel mixed build" mode, this represents the Bazel target replacing this Soong module.
 label string, The label of the Bazel target replacing this Soong module. When run in conversion mode, this will import the handcrafted build target into the autogenerated file. Note: this may result in a conflict due to duplicate targets if bp2build_available is also set.
 bp2build_available bool, If true, bp2build will generate the converted Bazel target for this module. Note: this may cause a conflict due to the duplicate targets if label is also set. This is a bool pointer to support tristates: true, false, not set. To opt in a module, set bazel_module: { bp2build_available: true } To opt out a module, set bazel_module: { bp2build_available: false } To defer the default setting for the directory, do not set the value.
 compile_multilib string, control whether this module compiles for 32-bit, 64-bit, or both. Possible values are "32" (compile for 32-bit only), "64" (compile for 64-bit only), "both" (compile for both architectures), or "first" (compile for 64-bit on a 64-bit platform, and 32-bit on a 32-bit platform).
 debug_ramdisk bool, Whether this module is installed to debug ramdisk
 device_specific bool, whether this module is specific to a device, not only for SoC, but also for off-chip peripherals. When set to true, it is installed into /odm (or /vendor/odm if odm partition does not exist, or /system/vendor/odm if both odm and vendor partitions do not exist). This implies `soc_specific:true`.
⊕dist Dist
configuration to distribute output files from this module to the distribution directory (default: $OUT/dist, configurable with $DIST_DIR)
 targets list of string, Copy the output of this module to the $DIST_DIR when `dist` is specified on the command line and any of these targets are also on the command line, or otherwise built
 dest string, The name of the output artifact. This defaults to the basename of the output of the module.
 dir string, The directory within the dist directory to store the artifact. Defaults to the top level directory ("").
 suffix string, A suffix to add to the artifact file name (before any extension).
 append_artifact_with_product bool, If true, then the artifact file will be appended with _<product name>. For example, if the product is coral and the module is an android_app module of name foo, then the artifact would be foo_coral.apk. If false, there is no change to the artifact file name.
 tag string, A string tag to select the OutputFiles associated with the tag. If no tag is specified then it will select the default dist paths provided by the module type. If a tag of "" is specified then it will return the default output files provided by the modules, i.e. the result of calling OutputFiles("").
 dists list of Dist, a list of configurations to distribute output files from this module to the distribution directory (default: $OUT/dist, configurable with $DIST_DIR)
 double_loadable bool, Whether the library can be loaded multiple times into the same process
⊕dumpapi DumpApiProperties
--dumpapi options
 no_license bool, Dumps without license header (assuming it is the first comment in .aidl file). Default: false
 enabled bool, emit build rules for this module Disabling a module should only be done for those modules that cannot be built in the current environment. Modules that can build in the current environment but are not usually required (e.g. superceded by a prebuilt) should not be disabled as that will prevent them from being built by the checkbuild target and so prevent early detection of changes that have broken those modules.
 flags list of string, Optional flags to be passed to the AIDL compiler. e.g. "-Weverything"
 frozen bool, If true, this interface is frozen and does not have any changes since the last frozen version. If false, there are changes to this interface between the last frozen version (N) and the current version (N + 1).
 gen_trace bool, Whether tracing should be added to the interface.
 headers list of string, List of aidl_interface_headers modules that provide include dependencies for the AIDL tool.
 host_required list of string, names of other modules to install on host if this module is installed
 imports list of string, List of aidl_interface modules that this uses. If one of your AIDL interfaces uses an interface or parcelable from another aidl_interface, you should put its name here. It could be an aidl_interface solely or with version(such as -V1)
 include_dirs list of string, Top level directories for includes. TODO(b/128940869): remove it if aidl_interface can depend on framework.aidl
 init_rc list of string, init.rc files to be installed if this module is installed
 licenses list of string, Describes the licenses applicable to this module. Must reference license modules.
 local_include_dir string, Relative path for includes. By default assumes AIDL path is relative to current directory.
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module. This can be overridden by backend.<name>.min_sdk_version.
 native_bridge_supported bool, Whether this module is built for non-native architectures (also known as native bridge binary)
 odm_available bool, Whether the library can be installed on the odm image.
 owner string, vendor who owns this module
 product_available bool, Whether the library can be installed on the product image.
 product_specific bool, whether this module is specific to a software configuration of a product (e.g. country, network operator, etc). When set to true, it is installed into /product (or /system/product if product partition does not exist).
⊕product_variables.always_use_prebuilt_sdks
⊕enabled
  *bool
⊕product_variables.arc
⊕include_dirs
  []string
⊕srcs
  []string
⊕product_variables.debuggable
⊕init_rc
  []string
⊕required
  []string
⊕host_required
  []string
⊕target_required
  []string
⊕srcs
  []string
⊕product_variables.flatten_apex
⊕enabled
  *bool
⊕product_variables.malloc_not_svelte
⊕srcs
  []string
⊕product_variables.native_coverage
⊕srcs
  []string
⊕product_variables.pdk
⊕enabled
  *bool
⊕product_variables.unbundled_build
⊕enabled
  *bool
 proprietary bool, whether this is a proprietary vendor module, and should be installed into /vendor
 ramdisk bool, Whether this module is installed to ramdisk
 recovery bool, Whether this module is installed to recovery partition
 recovery_available bool, Whether the library can be installed on the recovery image.
 required list of string, names of other modules to install if this module is installed
 soc_specific bool, whether this module is specific to an SoC (System-On-a-Chip). When set to true, it is installed into /vendor (or /system/vendor if vendor partition does not exist).
 stability string, Stability promise. Currently only supports "vintf". If this is unset, this corresponds to an interface with stability within this compilation context (so an interface loaded here can only be used with things compiled together, e.g. on the system.img). If this is set to "vintf", this corresponds to a stability promise: the interface must be kept stable as long as it is used.
 system_ext_specific bool, whether this module extends system. When set to true, it is installed into /system_ext (or /system/system_ext if system_ext partition does not exist).
⊕target.android
 compile_multilib string
⊕target.host
 compile_multilib string
 target_required list of string, names of other modules to install on target if this module is installed
 unstable bool, Marks that this interface does not need to be stable. When set to true, the build system doesn't create the API dump and require it to be updated. Default is false.
 vendor bool, whether this module is specific to an SoC (System-On-a-Chip). When set to true, it is installed into /vendor (or /system/vendor if vendor partition does not exist). Use `soc_specific` instead for better meaning.
 vendor_available bool, Whether the library can be installed on the vendor image.
 vendor_ramdisk bool, Whether this module is installed to vendor ramdisk
 versions list of string, Deprecated: Use `versions_with_info` instead. Don't use `versions` property directly.
⊕versions_with_info list of
Previous API versions that are now frozen. The version that is last in the list is considered as the most recent version. The struct contains both version and imports information per a version. Until versions property is removed, don't use `versions_with_info` directly.
 version string
 imports list of string
 vintf_fragments list of string, VINTF manifest fragments to be installed if this module is installed
 visibility list of string, Controls the visibility of this module to other modules. Allowable values are one or more of these formats: 

 ["//visibility:public"]: Anyone can use this module.
 ["//visibility:private"]: Only rules in the module's package (not its subpackages) can use
     this module.
 ["//visibility:override"]: Discards any rules inherited from defaults or a creating module.
     Can only be used at the beginning of a list of visibility rules.
 ["//some/package:__pkg__", "//other/package:__pkg__"]: Only modules in some/package and
     other/package (defined in some/package/*.bp and other/package/*.bp) have access to
     this module. Note that sub-packages do not have access to the rule; for example,
     //some/package/foo:bar or //other/package/testing:bla wouldn't have access. __pkg__
     is a special module and must be used verbatim. It represents all of the modules in the
     package.
 ["//project:__subpackages__", "//other:__subpackages__"]: Only modules in packages project
     or other or in one of their sub-packages have access to this module. For example,
     //project:rule, //project/library:lib or //other/testing/internal:munge are allowed
     to depend on this rule (but not //independent:evil)
 ["//project"]: This is shorthand for ["//project:__pkg__"]
 [":__subpackages__"]: This is shorthand for ["//project:__subpackages__"] where
     //project is the module's package. e.g. using [":__subpackages__"] in
     packages/apps/Settings/Android.bp is equivalent to
     //packages/apps/Settings:__subpackages__.
 ["//visibility:legacy_public"]: The default visibility, behaves as //visibility:public
     for now. It is an error if it is used in a module.
If a module does not specify the `visibility` property then it uses the `default_visibility` property of the `package` module in the module's package. If the `default_visibility` property is not set for the module's package then it will use the `default_visibility` of its closest ancestor package for which a `default_visibility` property is specified. If no `default_visibility` property can be found then the module uses the global default of `//visibility:legacy_public`. The `visibility` property has no effect on a defaults module although it does apply to any non-defaults module that uses it. To set the visibility of a defaults module, use the `defaults_visibility` property on the defaults module; not to be confused with the `default_visibility` property on the package module. See https://android.googlesource.com/platform/build/soong/+/master/README.md#visibility for more details.
⊕vndk
 enabled bool, declared as a VNDK or VNDK-SP module. The vendor variant will be installed in /system instead of /vendor partition. `vendor_available` and `product_available` must be explicitly set to either true or false together with `vndk: {enabled: true}`.
 support_system_process bool, declared as a VNDK-SP module, which is a subset of VNDK. `vndk: { enabled: true }` must set together. All these modules are allowed to link to VNDK-SP or LL-NDK modules only. Other dependency will cause link-type errors. If `support_system_process` is not set or set to false, the module is VNDK-core and can link to other VNDK-core, VNDK-SP or LL-NDK modules only.
 private bool, declared as a VNDK-private module. This module still creates the vendor and product variants refering to the `vendor_available: true` and `product_available: true` properties. However, it is only available to the other VNDK modules but not to the non-VNDK vendor or product modules.
 extends string, Extending another module
 vndk_use_version string, How to interpret VNDK options. We only want one library in the VNDK (not multiple versions, since this would be a waste of space/unclear, and ultimately we want all code in a given release to be updated to use a specific version). By default, this puts either the latest stable version of the library or, if there is no stable version, the unstable version of the library in the VNDK. When using this field, explicitly set it to one of the values in the 'versions' field to put that version in the VNDK or set it to the next version (1 higher than this) to mean the version that will be frozen in the next update.

aidl_interface_defaults

name , srcs , defaults , host_supported , device_supported , apex_available , arch , backend.cpp , backend.java , backend.ndk , backend.rust , bazel_module , compile_multilib , debug_ramdisk , defaults_visibility , device_specific , dist , dists , double_loadable , dumpapi , enabled , flags , frozen , gen_trace , headers , host_required , imports , include_dirs , init_rc , licenses , local_include_dir , min_sdk_version , multilib , native_bridge_supported , odm_available , owner , product_available , product_specific , product_variables.always_use_prebuilt_sdks , product_variables.arc , product_variables.debuggable , product_variables.flatten_apex , product_variables.malloc_not_svelte , product_variables.native_coverage , product_variables.pdk , product_variables.unbundled_build , proprietary , ramdisk , recovery , recovery_available , required , soc_specific , stability , system_ext_specific , target , target.android , target.host , target_required , unstable , vendor , vendor_available , vendor_ramdisk , versions , versions_with_info , vintf_fragments , visibility , vndk , vndk_use_version
 name string, The name of the module. Must be unique across all modules.
 srcs list of string, List of .aidl files which compose this interface.
 defaults list of string
 host_supported bool, If set to true, build a variant of the module for the host. Defaults to false.
 device_supported bool, If set to true, build a variant of the module for the device. Defaults to true.
 apex_available list of string, Availability of this module in APEXes. Only the listed APEXes can contain this module. If the module has stubs then other APEXes and the platform may access it through them (subject to visibility). "//apex_available:anyapex" is a pseudo APEX name that matches to any APEX. "//apex_available:platform" refers to non-APEX partitions like "system.img". "com.android.gki.*" matches any APEX module name with the prefix "com.android.gki.". Default is ["//apex_available:platform"].
 arch interface
⊕backend.cpp
Backend of the compiler generating code for C++ clients using libbinder (unstable C++ interface) When enabled, this creates a target called "<name>-cpp".
 additional_shared_libraries list of string, Must be NDK libraries, for stable types.
 cflags list of string, cflags to forward to native compilation. This is expected to be used more for AIDL compiler developers than being actually practical.
 gen_log bool, Whether to generate additional code for gathering information about the transactions. Default: false
 enabled bool, Whether to generate code in the corresponding backend. Default: 

  - for Java/NDK/CPP backends - True
  - for Rust backend - False
 apex_available list of string
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module.
 gen_trace bool, Whether tracing should be added to the interface.
⊕vndk
 enabled bool, declared as a VNDK or VNDK-SP module. The vendor variant will be installed in /system instead of /vendor partition. `vendor_available` and `product_available` must be explicitly set to either true or false together with `vndk: {enabled: true}`.
 support_system_process bool, declared as a VNDK-SP module, which is a subset of VNDK. `vndk: { enabled: true }` must set together. All these modules are allowed to link to VNDK-SP or LL-NDK modules only. Other dependency will cause link-type errors. If `support_system_process` is not set or set to false, the module is VNDK-core and can link to other VNDK-core, VNDK-SP or LL-NDK modules only.
 private bool, declared as a VNDK-private module. This module still creates the vendor and product variants refering to the `vendor_available: true` and `product_available: true` properties. However, it is only available to the other VNDK modules but not to the non-VNDK vendor or product modules.
 extends string, Extending another module
⊕backend.java
Backend of the compiler generating code for Java clients. When enabled, this creates a target called "<name>-java".
 sdk_version string, Set to the version of the sdk to compile against Default: system_current
 platform_apis bool, Whether to compile against platform APIs instead of an SDK.
 gen_rpc bool, Whether RPC features are enabled (requires API level 32) TODO(b/175819535): enable this automatically?
 enabled bool, Whether to generate code in the corresponding backend. Default: 

  - for Java/NDK/CPP backends - True
  - for Rust backend - False
 apex_available list of string
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module.
 gen_trace bool, Whether tracing should be added to the interface.
⊕lint
Controls for running Android Lint on the module.
 enabled bool, If true, run Android Lint on the module. Defaults to true.
 flags list of string, Flags to pass to the Android Lint tool.
 fatal_checks list of string, Checks that should be treated as fatal.
 error_checks list of string, Checks that should be treated as errors.
 warning_checks list of string, Checks that should be treated as warnings.
 disabled_checks list of string, Checks that should be skipped.
 extra_check_modules list of string, Modules that provide extra lint checks
 baseline_filename string, Name of the file that lint uses as the baseline. Defaults to "lint-baseline.xml".
 strict_updatability_linting bool, If true, baselining updatability lint checks (e.g. NewApi) is prohibited. Defaults to false.
 test bool, Treat the code in this module as test code for @VisibleForTesting enforcement. This will be true by default for test module types, false otherwise. If soong gets support for testonly, this flag should be replaced with that.
⊕backend.ndk
Backend of the compiler generating code for C++ clients using libbinder_ndk (stable C interface to system's libbinder) When enabled, this creates a target called "<name>-V<ver>-ndk" (for both apps and platform) and "<name>-V<ver>-ndk_platform" (for platform only). TODO(b/161456198): remove the ndk_platform backend as the ndk backend can serve the same purpose.
 sdk_version string, Set to the version of the sdk to compile against, for the NDK variant. Default: current
 apps_enabled bool, If set to false, the ndk backend is exclusive to platform and is not available to applications. Default is true (i.e. available to both applications and platform).
 additional_shared_libraries list of string, Must be NDK libraries, for stable types.
 cflags list of string, cflags to forward to native compilation. This is expected to be used more for AIDL compiler developers than being actually practical.
 gen_log bool, Whether to generate additional code for gathering information about the transactions. Default: false
 enabled bool, Whether to generate code in the corresponding backend. Default: 

  - for Java/NDK/CPP backends - True
  - for Rust backend - False
 apex_available list of string
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module.
 gen_trace bool, Whether tracing should be added to the interface.
⊕vndk
 enabled bool, declared as a VNDK or VNDK-SP module. The vendor variant will be installed in /system instead of /vendor partition. `vendor_available` and `product_available` must be explicitly set to either true or false together with `vndk: {enabled: true}`.
 support_system_process bool, declared as a VNDK-SP module, which is a subset of VNDK. `vndk: { enabled: true }` must set together. All these modules are allowed to link to VNDK-SP or LL-NDK modules only. Other dependency will cause link-type errors. If `support_system_process` is not set or set to false, the module is VNDK-core and can link to other VNDK-core, VNDK-SP or LL-NDK modules only.
 private bool, declared as a VNDK-private module. This module still creates the vendor and product variants refering to the `vendor_available: true` and `product_available: true` properties. However, it is only available to the other VNDK modules but not to the non-VNDK vendor or product modules.
 extends string, Extending another module
⊕backend.rust
Backend of the compiler generating code for Rust clients. When enabled, this creates a target called "<name>-rust".
 enabled bool, Whether to generate code in the corresponding backend. Default: 

  - for Java/NDK/CPP backends - True
  - for Rust backend - False
 apex_available list of string
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module.
 gen_trace bool, Whether tracing should be added to the interface.
⊕bazel_module bazelModuleProperties
In "Bazel mixed build" mode, this represents the Bazel target replacing this Soong module.
 label string, The label of the Bazel target replacing this Soong module. When run in conversion mode, this will import the handcrafted build target into the autogenerated file. Note: this may result in a conflict due to duplicate targets if bp2build_available is also set.
 bp2build_available bool, If true, bp2build will generate the converted Bazel target for this module. Note: this may cause a conflict due to the duplicate targets if label is also set. This is a bool pointer to support tristates: true, false, not set. To opt in a module, set bazel_module: { bp2build_available: true } To opt out a module, set bazel_module: { bp2build_available: false } To defer the default setting for the directory, do not set the value.
 compile_multilib string, control whether this module compiles for 32-bit, 64-bit, or both. Possible values are "32" (compile for 32-bit only), "64" (compile for 64-bit only), "both" (compile for both architectures), or "first" (compile for 64-bit on a 64-bit platform, and 32-bit on a 32-bit platform).
 debug_ramdisk bool, Whether this module is installed to debug ramdisk
 defaults_visibility list of string, Controls the visibility of the defaults module itself.
 device_specific bool, whether this module is specific to a device, not only for SoC, but also for off-chip peripherals. When set to true, it is installed into /odm (or /vendor/odm if odm partition does not exist, or /system/vendor/odm if both odm and vendor partitions do not exist). This implies `soc_specific:true`.
⊕dist Dist
configuration to distribute output files from this module to the distribution directory (default: $OUT/dist, configurable with $DIST_DIR)
 targets list of string, Copy the output of this module to the $DIST_DIR when `dist` is specified on the command line and any of these targets are also on the command line, or otherwise built
 dest string, The name of the output artifact. This defaults to the basename of the output of the module.
 dir string, The directory within the dist directory to store the artifact. Defaults to the top level directory ("").
 suffix string, A suffix to add to the artifact file name (before any extension).
 append_artifact_with_product bool, If true, then the artifact file will be appended with _<product name>. For example, if the product is coral and the module is an android_app module of name foo, then the artifact would be foo_coral.apk. If false, there is no change to the artifact file name.
 tag string, A string tag to select the OutputFiles associated with the tag. If no tag is specified then it will select the default dist paths provided by the module type. If a tag of "" is specified then it will return the default output files provided by the modules, i.e. the result of calling OutputFiles("").
 dists list of Dist, a list of configurations to distribute output files from this module to the distribution directory (default: $OUT/dist, configurable with $DIST_DIR)
 double_loadable bool, Whether the library can be loaded multiple times into the same process
⊕dumpapi DumpApiProperties
--dumpapi options
 no_license bool, Dumps without license header (assuming it is the first comment in .aidl file). Default: false
 enabled bool, emit build rules for this module Disabling a module should only be done for those modules that cannot be built in the current environment. Modules that can build in the current environment but are not usually required (e.g. superceded by a prebuilt) should not be disabled as that will prevent them from being built by the checkbuild target and so prevent early detection of changes that have broken those modules.
 flags list of string, Optional flags to be passed to the AIDL compiler. e.g. "-Weverything"
 frozen bool, If true, this interface is frozen and does not have any changes since the last frozen version. If false, there are changes to this interface between the last frozen version (N) and the current version (N + 1).
 gen_trace bool, Whether tracing should be added to the interface.
 headers list of string, List of aidl_interface_headers modules that provide include dependencies for the AIDL tool.
 host_required list of string, names of other modules to install on host if this module is installed
 imports list of string, List of aidl_interface modules that this uses. If one of your AIDL interfaces uses an interface or parcelable from another aidl_interface, you should put its name here. It could be an aidl_interface solely or with version(such as -V1)
 include_dirs list of string, Top level directories for includes. TODO(b/128940869): remove it if aidl_interface can depend on framework.aidl
 init_rc list of string, init.rc files to be installed if this module is installed
 licenses list of string, Describes the licenses applicable to this module. Must reference license modules.
 local_include_dir string, Relative path for includes. By default assumes AIDL path is relative to current directory.
 min_sdk_version string, The minimum version of the sdk that the compiled artifacts will run against For native modules, the property needs to be set when a module is a part of mainline modules(APEX). Forwarded to generated java/native module. This can be overridden by backend.<name>.min_sdk_version.
 multilib interface
 native_bridge_supported bool, Whether this module is built for non-native architectures (also known as native bridge binary)
 odm_available bool, Whether the library can be installed on the odm image.
 owner string, vendor who owns this module
 product_available bool, Whether the library can be installed on the product image.
 product_specific bool, whether this module is specific to a software configuration of a product (e.g. country, network operator, etc). When set to true, it is installed into /product (or /system/product if product partition does not exist).
⊕product_variables.always_use_prebuilt_sdks
⊕enabled
  *bool
⊕product_variables.arc
⊕include_dirs
  []string
⊕srcs
  []string
⊕product_variables.debuggable
⊕init_rc
  []string
⊕required
  []string
⊕host_required
  []string
⊕target_required
  []string
⊕srcs
  []string
⊕product_variables.flatten_apex
⊕enabled
  *bool
⊕product_variables.malloc_not_svelte
⊕srcs
  []string
⊕product_variables.native_coverage
⊕srcs
  []string
⊕product_variables.pdk
⊕enabled
  *bool
⊕product_variables.unbundled_build
⊕enabled
  *bool
 proprietary bool, whether this is a proprietary vendor module, and should be installed into /vendor
 ramdisk bool, Whether this module is installed to ramdisk
 recovery bool, Whether this module is installed to recovery partition
 recovery_available bool, Whether the library can be installed on the recovery image.
 required list of string, names of other modules to install if this module is installed
 soc_specific bool, whether this module is specific to an SoC (System-On-a-Chip). When set to true, it is installed into /vendor (or /system/vendor if vendor partition does not exist).
 stability string, Stability promise. Currently only supports "vintf". If this is unset, this corresponds to an interface with stability within this compilation context (so an interface loaded here can only be used with things compiled together, e.g. on the system.img). If this is set to "vintf", this corresponds to a stability promise: the interface must be kept stable as long as it is used.
 system_ext_specific bool, whether this module extends system. When set to true, it is installed into /system_ext (or /system/system_ext if system_ext partition does not exist).
 target interface
⊕target.android
 compile_multilib string
⊕target.host
 compile_multilib string
 target_required list of string, names of other modules to install on target if this module is installed
 unstable bool, Marks that this interface does not need to be stable. When set to true, the build system doesn't create the API dump and require it to be updated. Default is false.
 vendor bool, whether this module is specific to an SoC (System-On-a-Chip). When set to true, it is installed into /vendor (or /system/vendor if vendor partition does not exist). Use `soc_specific` instead for better meaning.
 vendor_available bool, Whether the library can be installed on the vendor image.
 vendor_ramdisk bool, Whether this module is installed to vendor ramdisk
 versions list of string, Deprecated: Use `versions_with_info` instead. Don't use `versions` property directly.
⊕versions_with_info list of
Previous API versions that are now frozen. The version that is last in the list is considered as the most recent version. The struct contains both version and imports information per a version. Until versions property is removed, don't use `versions_with_info` directly.
 version string
 imports list of string
 vintf_fragments list of string, VINTF manifest fragments to be installed if this module is installed
 visibility list of string, Controls the visibility of this module to other modules. Allowable values are one or more of these formats: 

 ["//visibility:public"]: Anyone can use this module.
 ["//visibility:private"]: Only rules in the module's package (not its subpackages) can use
     this module.
 ["//visibility:override"]: Discards any rules inherited from defaults or a creating module.
     Can only be used at the beginning of a list of visibility rules.
 ["//some/package:__pkg__", "//other/package:__pkg__"]: Only modules in some/package and
     other/package (defined in some/package/*.bp and other/package/*.bp) have access to
     this module. Note that sub-packages do not have access to the rule; for example,
     //some/package/foo:bar or //other/package/testing:bla wouldn't have access. __pkg__
     is a special module and must be used verbatim. It represents all of the modules in the
     package.
 ["//project:__subpackages__", "//other:__subpackages__"]: Only modules in packages project
     or other or in one of their sub-packages have access to this module. For example,
     //project:rule, //project/library:lib or //other/testing/internal:munge are allowed
     to depend on this rule (but not //independent:evil)
 ["//project"]: This is shorthand for ["//project:__pkg__"]
 [":__subpackages__"]: This is shorthand for ["//project:__subpackages__"] where
     //project is the module's package. e.g. using [":__subpackages__"] in
     packages/apps/Settings/Android.bp is equivalent to
     //packages/apps/Settings:__subpackages__.
 ["//visibility:legacy_public"]: The default visibility, behaves as //visibility:public
     for now. It is an error if it is used in a module.
If a module does not specify the `visibility` property then it uses the `default_visibility` property of the `package` module in the module's package. If the `default_visibility` property is not set for the module's package then it will use the `default_visibility` of its closest ancestor package for which a `default_visibility` property is specified. If no `default_visibility` property can be found then the module uses the global default of `//visibility:legacy_public`. The `visibility` property has no effect on a defaults module although it does apply to any non-defaults module that uses it. To set the visibility of a defaults module, use the `defaults_visibility` property on the defaults module; not to be confused with the `default_visibility` property on the package module. See https://android.googlesource.com/platform/build/soong/+/master/README.md#visibility for more details.
⊕vndk
 enabled bool, declared as a VNDK or VNDK-SP module. The vendor variant will be installed in /system instead of /vendor partition. `vendor_available` and `product_available` must be explicitly set to either true or false together with `vndk: {enabled: true}`.
 support_system_process bool, declared as a VNDK-SP module, which is a subset of VNDK. `vndk: { enabled: true }` must set together. All these modules are allowed to link to VNDK-SP or LL-NDK modules only. Other dependency will cause link-type errors. If `support_system_process` is not set or set to false, the module is VNDK-core and can link to other VNDK-core, VNDK-SP or LL-NDK modules only.
 private bool, declared as a VNDK-private module. This module still creates the vendor and product variants refering to the `vendor_available: true` and `product_available: true` properties. However, it is only available to the other VNDK modules but not to the non-VNDK vendor or product modules.
 extends string, Extending another module
 vndk_use_version string, How to interpret VNDK options. We only want one library in the VNDK (not multiple versions, since this would be a waste of space/unclear, and ultimately we want all code in a given release to be updated to use a specific version). By default, this puts either the latest stable version of the library or, if there is no stable version, the unstable version of the library in the VNDK. When using this field, explicitly set it to one of the values in the 'versions' field to put that version in the VNDK or set it to the next version (1 higher than this) to mean the version that will be frozen in the next update.

aidl_interface_headers

Modules which provide AIDL sources that are only used to provide "-I" flags to the aidl tool. No language bindings are generated from these modules. Typically this will be used to provide includes for UnstructuredParcelable AIDL definitions such as those coming from framework modules.
name , srcs , bazel_module , compile_multilib , debug_ramdisk , device_specific , dist , dists , enabled , host_required , include_dir , init_rc , licenses , native_bridge_supported , owner , product_specific , product_variables.always_use_prebuilt_sdks , product_variables.arc , product_variables.debuggable , product_variables.flatten_apex , product_variables.malloc_not_svelte , product_variables.native_coverage , product_variables.pdk , product_variables.unbundled_build , proprietary , ramdisk , recovery , required , soc_specific , system_ext_specific , target.android , target.host , target_required , vendor , vendor_ramdisk , vintf_fragments , visibility
 name string, The name of the module. Must be unique across all modules.
 srcs list of string, List of .aidl files which compose this interface.
⊕bazel_module bazelModuleProperties
In "Bazel mixed build" mode, this represents the Bazel target replacing this Soong module.
 label string, The label of the Bazel target replacing this Soong module. When run in conversion mode, this will import the handcrafted build target into the autogenerated file. Note: this may result in a conflict due to duplicate targets if bp2build_available is also set.
 bp2build_available bool, If true, bp2build will generate the converted Bazel target for this module. Note: this may cause a conflict due to the duplicate targets if label is also set. This is a bool pointer to support tristates: true, false, not set. To opt in a module, set bazel_module: { bp2build_available: true } To opt out a module, set bazel_module: { bp2build_available: false } To defer the default setting for the directory, do not set the value.
 compile_multilib string, control whether this module compiles for 32-bit, 64-bit, or both. Possible values are "32" (compile for 32-bit only), "64" (compile for 64-bit only), "both" (compile for both architectures), or "first" (compile for 64-bit on a 64-bit platform, and 32-bit on a 32-bit platform).
 debug_ramdisk bool, Whether this module is installed to debug ramdisk
 device_specific bool, whether this module is specific to a device, not only for SoC, but also for off-chip peripherals. When set to true, it is installed into /odm (or /vendor/odm if odm partition does not exist, or /system/vendor/odm if both odm and vendor partitions do not exist). This implies `soc_specific:true`.
⊕dist Dist
configuration to distribute output files from this module to the distribution directory (default: $OUT/dist, configurable with $DIST_DIR)
 targets list of string, Copy the output of this module to the $DIST_DIR when `dist` is specified on the command line and any of these targets are also on the command line, or otherwise built
 dest string, The name of the output artifact. This defaults to the basename of the output of the module.
 dir string, The directory within the dist directory to store the artifact. Defaults to the top level directory ("").
 suffix string, A suffix to add to the artifact file name (before any extension).
 append_artifact_with_product bool, If true, then the artifact file will be appended with _<product name>. For example, if the product is coral and the module is an android_app module of name foo, then the artifact would be foo_coral.apk. If false, there is no change to the artifact file name.
 tag string, A string tag to select the OutputFiles associated with the tag. If no tag is specified then it will select the default dist paths provided by the module type. If a tag of "" is specified then it will return the default output files provided by the modules, i.e. the result of calling OutputFiles("").
 dists list of Dist, a list of configurations to distribute output files from this module to the distribution directory (default: $OUT/dist, configurable with $DIST_DIR)
 enabled bool, emit build rules for this module Disabling a module should only be done for those modules that cannot be built in the current environment. Modules that can build in the current environment but are not usually required (e.g. superceded by a prebuilt) should not be disabled as that will prevent them from being built by the checkbuild target and so prevent early detection of changes that have broken those modules.
 host_required list of string, names of other modules to install on host if this module is installed
 include_dir string, Relative path for includes. assumes AIDL path is relative to current directory.
 init_rc list of string, init.rc files to be installed if this module is installed
 licenses list of string, Describes the licenses applicable to this module. Must reference license modules.
 native_bridge_supported bool, Whether this module is built for non-native architectures (also known as native bridge binary)
 owner string, vendor who owns this module
 product_specific bool, whether this module is specific to a software configuration of a product (e.g. country, network operator, etc). When set to true, it is installed into /product (or /system/product if product partition does not exist).
⊕product_variables.always_use_prebuilt_sdks
⊕enabled
  *bool
⊕product_variables.arc
⊕srcs
  []string
⊕product_variables.debuggable
⊕init_rc
  []string
⊕required
  []string
⊕host_required
  []string
⊕target_required
  []string
⊕srcs
  []string
⊕product_variables.flatten_apex
⊕enabled
  *bool
⊕product_variables.malloc_not_svelte
⊕srcs
  []string
⊕product_variables.native_coverage
⊕srcs
  []string
⊕product_variables.pdk
⊕enabled
  *bool
⊕product_variables.unbundled_build
⊕enabled
  *bool
 proprietary bool, whether this is a proprietary vendor module, and should be installed into /vendor
 ramdisk bool, Whether this module is installed to ramdisk
 recovery bool, Whether this module is installed to recovery partition
 required list of string, names of other modules to install if this module is installed
 soc_specific bool, whether this module is specific to an SoC (System-On-a-Chip). When set to true, it is installed into /vendor (or /system/vendor if vendor partition does not exist).
 system_ext_specific bool, whether this module extends system. When set to true, it is installed into /system_ext (or /system/system_ext if system_ext partition does not exist).
⊕target.android
 compile_multilib string
⊕target.host
 compile_multilib string
 target_required list of string, names of other modules to install on target if this module is installed
 vendor bool, whether this module is specific to an SoC (System-On-a-Chip). When set to true, it is installed into /vendor (or /system/vendor if vendor partition does not exist). Use `soc_specific` instead for better meaning.
 vendor_ramdisk bool, Whether this module is installed to vendor ramdisk
 vintf_fragments list of string, VINTF manifest fragments to be installed if this module is installed
 visibility list of string, Controls the visibility of this module to other modules. Allowable values are one or more of these formats: 

 ["//visibility:public"]: Anyone can use this module.
 ["//visibility:private"]: Only rules in the module's package (not its subpackages) can use
     this module.
 ["//visibility:override"]: Discards any rules inherited from defaults or a creating module.
     Can only be used at the beginning of a list of visibility rules.
 ["//some/package:__pkg__", "//other/package:__pkg__"]: Only modules in some/package and
     other/package (defined in some/package/*.bp and other/package/*.bp) have access to
     this module. Note that sub-packages do not have access to the rule; for example,
     //some/package/foo:bar or //other/package/testing:bla wouldn't have access. __pkg__
     is a special module and must be used verbatim. It represents all of the modules in the
     package.
 ["//project:__subpackages__", "//other:__subpackages__"]: Only modules in packages project
     or other or in one of their sub-packages have access to this module. For example,
     //project:rule, //project/library:lib or //other/testing/internal:munge are allowed
     to depend on this rule (but not //independent:evil)
 ["//project"]: This is shorthand for ["//project:__pkg__"]
 [":__subpackages__"]: This is shorthand for ["//project:__subpackages__"] where
     //project is the module's package. e.g. using [":__subpackages__"] in
     packages/apps/Settings/Android.bp is equivalent to
     //packages/apps/Settings:__subpackages__.
 ["//visibility:legacy_public"]: The default visibility, behaves as //visibility:public
     for now. It is an error if it is used in a module.
If a module does not specify the `visibility` property then it uses the `default_visibility` property of the `package` module in the module's package. If the `default_visibility` property is not set for the module's package then it will use the `default_visibility` of its closest ancestor package for which a `default_visibility` property is specified. If no `default_visibility` property can be found then the module uses the global default of `//visibility:legacy_public`. The `visibility` property has no effect on a defaults module although it does apply to any non-defaults module that uses it. To set the visibility of a defaults module, use the `defaults_visibility` property on the defaults module; not to be confused with the `default_visibility` property on the package module. See https://android.googlesource.com/platform/build/soong/+/master/README.md#visibility for more details.

aidl_interfaces_metadata

name , compile_multilib , debug_ramdisk , device_specific , dist , dists , enabled , host_required , init_rc , licenses , native_bridge_supported , owner , product_specific , product_variables.always_use_prebuilt_sdks , product_variables.debuggable , product_variables.flatten_apex , product_variables.pdk , product_variables.unbundled_build , proprietary , ramdisk , recovery , required , soc_specific , system_ext_specific , target.android , target.host , target_required , vendor , vendor_ramdisk , vintf_fragments , visibility
 name string, The name of the module. Must be unique across all modules.
 compile_multilib string, control whether this module compiles for 32-bit, 64-bit, or both. Possible values are "32" (compile for 32-bit only), "64" (compile for 64-bit only), "both" (compile for both architectures), or "first" (compile for 64-bit on a 64-bit platform, and 32-bit on a 32-bit platform).
 debug_ramdisk bool, Whether this module is installed to debug ramdisk
 device_specific bool, whether this module is specific to a device, not only for SoC, but also for off-chip peripherals. When set to true, it is installed into /odm (or /vendor/odm if odm partition does not exist, or /system/vendor/odm if both odm and vendor partitions do not exist). This implies `soc_specific:true`.
⊕dist Dist
configuration to distribute output files from this module to the distribution directory (default: $OUT/dist, configurable with $DIST_DIR)
 targets list of string, Copy the output of this module to the $DIST_DIR when `dist` is specified on the command line and any of these targets are also on the command line, or otherwise built
 dest string, The name of the output artifact. This defaults to the basename of the output of the module.
 dir string, The directory within the dist directory to store the artifact. Defaults to the top level directory ("").
 suffix string, A suffix to add to the artifact file name (before any extension).
 append_artifact_with_product bool, If true, then the artifact file will be appended with _<product name>. For example, if the product is coral and the module is an android_app module of name foo, then the artifact would be foo_coral.apk. If false, there is no change to the artifact file name.
 tag string, A string tag to select the OutputFiles associated with the tag. If no tag is specified then it will select the default dist paths provided by the module type. If a tag of "" is specified then it will return the default output files provided by the modules, i.e. the result of calling OutputFiles("").
 dists list of Dist, a list of configurations to distribute output files from this module to the distribution directory (default: $OUT/dist, configurable with $DIST_DIR)
 enabled bool, emit build rules for this module Disabling a module should only be done for those modules that cannot be built in the current environment. Modules that can build in the current environment but are not usually required (e.g. superceded by a prebuilt) should not be disabled as that will prevent them from being built by the checkbuild target and so prevent early detection of changes that have broken those modules.
 host_required list of string, names of other modules to install on host if this module is installed
 init_rc list of string, init.rc files to be installed if this module is installed
 licenses list of string, Describes the licenses applicable to this module. Must reference license modules.
 native_bridge_supported bool, Whether this module is built for non-native architectures (also known as native bridge binary)
 owner string, vendor who owns this module
 product_specific bool, whether this module is specific to a software configuration of a product (e.g. country, network operator, etc). When set to true, it is installed into /product (or /system/product if product partition does not exist).
⊕product_variables.always_use_prebuilt_sdks
⊕enabled
  *bool
⊕product_variables.debuggable
⊕init_rc
  []string
⊕required
  []string
⊕host_required
  []string
⊕target_required
  []string
⊕product_variables.flatten_apex
⊕enabled
  *bool
⊕product_variables.pdk
⊕enabled
  *bool
⊕product_variables.unbundled_build
⊕enabled
  *bool
 proprietary bool, whether this is a proprietary vendor module, and should be installed into /vendor
 ramdisk bool, Whether this module is installed to ramdisk
 recovery bool, Whether this module is installed to recovery partition
 required list of string, names of other modules to install if this module is installed
 soc_specific bool, whether this module is specific to an SoC (System-On-a-Chip). When set to true, it is installed into /vendor (or /system/vendor if vendor partition does not exist).
 system_ext_specific bool, whether this module extends system. When set to true, it is installed into /system_ext (or /system/system_ext if system_ext partition does not exist).
⊕target.android
 compile_multilib string
⊕target.host
 compile_multilib string
 target_required list of string, names of other modules to install on target if this module is installed
 vendor bool, whether this module is specific to an SoC (System-On-a-Chip). When set to true, it is installed into /vendor (or /system/vendor if vendor partition does not exist). Use `soc_specific` instead for better meaning.
 vendor_ramdisk bool, Whether this module is installed to vendor ramdisk
 vintf_fragments list of string, VINTF manifest fragments to be installed if this module is installed
 visibility list of string, Controls the visibility of this module to other modules. Allowable values are one or more of these formats: 

 ["//visibility:public"]: Anyone can use this module.
 ["//visibility:private"]: Only rules in the module's package (not its subpackages) can use
     this module.
 ["//visibility:override"]: Discards any rules inherited from defaults or a creating module.
     Can only be used at the beginning of a list of visibility rules.
 ["//some/package:__pkg__", "//other/package:__pkg__"]: Only modules in some/package and
     other/package (defined in some/package/*.bp and other/package/*.bp) have access to
     this module. Note that sub-packages do not have access to the rule; for example,
     //some/package/foo:bar or //other/package/testing:bla wouldn't have access. __pkg__
     is a special module and must be used verbatim. It represents all of the modules in the
     package.
 ["//project:__subpackages__", "//other:__subpackages__"]: Only modules in packages project
     or other or in one of their sub-packages have access to this module. For example,
     //project:rule, //project/library:lib or //other/testing/internal:munge are allowed
     to depend on this rule (but not //independent:evil)
 ["//project"]: This is shorthand for ["//project:__pkg__"]
 [":__subpackages__"]: This is shorthand for ["//project:__subpackages__"] where
     //project is the module's package. e.g. using [":__subpackages__"] in
     packages/apps/Settings/Android.bp is equivalent to
     //packages/apps/Settings:__subpackages__.
 ["//visibility:legacy_public"]: The default visibility, behaves as //visibility:public
     for now. It is an error if it is used in a module.
If a module does not specify the `visibility` property then it uses the `default_visibility` property of the `package` module in the module's package. If the `default_visibility` property is not set for the module's package then it will use the `default_visibility` of its closest ancestor package for which a `default_visibility` property is specified. If no `default_visibility` property can be found then the module uses the global default of `//visibility:legacy_public`. The `visibility` property has no effect on a defaults module although it does apply to any non-defaults module that uses it. To set the visibility of a defaults module, use the `defaults_visibility` property on the defaults module; not to be confused with the `default_visibility` property on the package module. See https://android.googlesource.com/platform/build/soong/+/master/README.md#visibility for more details.