Commit Graph

7926 Commits

Author SHA1 Message Date
Colin Cross
8113101892 Merge "Always use aapt2 --no-static-lib-packages" into main am: 308d64ed72
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2962085

Change-Id: Ida814c476605753b7e43cd90ba5a8e52b9bad0a1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-14 20:33:57 +00:00
Colin Cross
308d64ed72 Merge "Always use aapt2 --no-static-lib-packages" into main 2024-02-14 20:01:25 +00:00
Jihoon Kang
38e4f258f7 Enable droidstubs to depend on aconfig_declarations_group module type
This change enabled aconfig_declarations_group module type to be added
as `aconfig_declarations` property of droidstubs module. Similar to
aconfig_declrations module, the aconfig_declarations_group module
provides the intermediate cache files of the aconfig_declarations
modules of the listed codegen modules to droidstubs module.

Test: m nothing --no-skip-soong-tests
Change-Id: I42eb64d3ab65e679ea733c5bb98833971e49a8e8
2024-02-14 18:52:51 +00:00
Inseob Kim
5b90d3a703 Fix characteristic rro for overridden packages
Overridden packages can have different package names. This change reads
output APKs to parse package name, instead of manifest xml.

Bug: 325011777
Test: boot and idmap2 dump
Change-Id: I748b9db8bd6282d7f3a1478cf94b21580c7683e7
2024-02-14 16:55:33 +09:00
Treehugger Robot
4532d929bf Merge "Skip passing "--product default" to aapt2" into main am: d8bab3758b
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2960503

Change-Id: If075e7b1fa924b2c7e72b1deb3a0cc465d1e39c2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-14 01:52:58 +00:00
Treehugger Robot
d8bab3758b Merge "Skip passing "--product default" to aapt2" into main 2024-02-14 01:20:52 +00:00
LaMont Jones
63683e40c4 Improve determination whether to propagate JarJarProvider
Add more explicit checks to not propagate JarJarProvider when we will be
linking against stubs.

Bug: b/310504781
Test: treehugger
Merged-In: I3219d0bf7e84a386b16b248314f11b4e9edcd0fa
Change-Id: I3219d0bf7e84a386b16b248314f11b4e9edcd0fa
2024-02-13 17:04:17 -08:00
Jihoon Kang
fe914ed17f Introduce library property is_stubs_module
is_stubs_module property signifies whether the module compiles stubs or
not. The information is propagated to the reverse dependencies of the
java_library/java_sdk_library modules via JavaInfoProvider as
StubsLinkType, a ternary state that provides information about whether
the provided jars are compilation of stubs or implementation, or
unknown.

When java_sdk_library sets StubsLinkType, its state is Unknown as the
decision of providing stubs vs implementation jar differs by the reverse
dependency.

Note that this CL does NOT propagate the property up to its reverse
dependencies. This will be done in follow up CLs.

Test: m nothing
Bug: 310504781
Merged-In: Ic81488dbd1c9af1b5d31a33e5e9441d9f1416dbe
Change-Id: Ic81488dbd1c9af1b5d31a33e5e9441d9f1416dbe
2024-02-13 16:56:38 -08:00
Colin Cross
7c4dc5d185 Always use aapt2 --no-static-lib-packages
--no-static-lib-packages was removed when compiling libraries with
use_resource_processor: true enabled, but that caused problems resolving
attributes of styleables.  androidx.preference declares the "icon"
attribute inside a <declare-styleable>, but doesn't give it a format.
aapt2 refuses to create a new attribute for this case (b/131100106),
but without --no-static-lib-packages aapt2 can resolve the attribute
from the one defined in androidx.appcompat.

Bug: 294256649
Test: builds
Change-Id: I13661be83ba6501b0c2b1af8e632f260f405a370
2024-02-13 14:29:45 -08:00
Spandan Das
59bb373c64 Merge "Restrict verify_overlaps to pre S modules" into main am: 2dc86ebd3e
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2958292

Change-Id: I350dea6abb51cb96bcfe8b093570ed809d8ccc62
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-13 13:58:59 +00:00
Jihoon Kang
4e0e9d3108 Merge "Add environment variable UNBUNDLED_BUILD_TARGET_SDK_WITH_DESSERT_SHA" into main am: a0ccab683b
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2952892

Change-Id: I311062919b44a6d6e469f831008d9952d0c8a6aa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-13 13:56:46 +00:00
Spandan Das
2dc86ebd3e Merge "Restrict verify_overlaps to pre S modules" into main 2024-02-13 10:53:23 +00:00
Jihoon Kang
a0ccab683b Merge "Add environment variable UNBUNDLED_BUILD_TARGET_SDK_WITH_DESSERT_SHA" into main 2024-02-13 04:27:21 +00:00
Inseob Kim
10af6edc52 Skip passing "--product default" to aapt2
Because
1) it has no effect.
2) it will simplify build commands, which will minimize differences
   among targets using generate_product_characteristics_rro

Bug: 322932641
Test: TH
Change-Id: I16afae597038da7489989483f8c926916d207df5
2024-02-13 12:56:46 +09:00
Spandan Das
38c64f62cf Restrict verify_overlaps to pre S modules
The runtime in S and above does not have the same constraints that
require the hiddenapi flags to be generated in a monolithic manner.
This CL restricts the verify_overlaps to pre S modules. This will
filter out hiddenapi signature discrepancies that do not require
any action.

Test: verify_overlaps diff with this change https://diff.googleplex.com/#key=xxB0ky93hZRn
Test: presubmits
Bug: 313672880

Change-Id: Ie626a6779fc924563bec90b6c1ab0c7e8b4b23c2
2024-02-13 02:33:12 +00:00
Treehugger Robot
485ca86b31 Merge "[Ravenwood] Install transitive JNI libraries too" into main am: c521446153
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2956237

Change-Id: Ic47b8d8812223fca5bfd45871a586b8b39af9b89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-12 23:20:56 +00:00
Jihoon Kang
842b999a53 Add environment variable UNBUNDLED_BUILD_TARGET_SDK_WITH_DESSERT_SHA
UNBUNDLED_BUILD_TARGET_SDK_WITH_DESSERT_SHA enables user to specify
${codename}.${sha} as min_sdk_version and target_sdk_version in order to
support mainline train building into android build.

Test: TH
Bug: 295905124
Change-Id: I032d464aaa7314520f98b8eafa53d962940075ce
2024-02-12 21:12:58 +00:00
Makoto Onuki
2ca8427124 [Ravenwood] Install transitive JNI libraries too
Ignore-AOSP-First: Will cherry-pick later.
Bug: 318393625
Bug: 323931246

Test: run-ravenwood-tests.sh
Test: (with local change) atest RavenwoodBivalentTest_device RavenwoodMockitoTest_device
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:55c035761c8b7b758d710ed5eeb9192525677057)
Merged-In: Ie0f6bbf1aa6252d415c53cfc19178f0986cc57f1

Change-Id: Ie0f6bbf1aa6252d415c53cfc19178f0986cc57f1
2024-02-09 16:45:43 -08:00
Jihoon Kang
5c1baf9627 Merge "Enable exportable stubs to include READ_WRITE aconfig flagged apis" into main am: 63f4cb6ed5
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2952680

Change-Id: Ib2713f22f0046c989d30cd5feca95fc72f464a39
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-09 00:41:26 +00:00
Jihoon Kang
63f4cb6ed5 Merge "Enable exportable stubs to include READ_WRITE aconfig flagged apis" into main 2024-02-08 23:52:47 +00:00
Yu Liu
ca23de78ab Merge "Add dedup flag to aconfig dump-cache calls." into main am: 01beacee28
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2955616

Change-Id: I31221f46e38b6a60ccb956af9208780e123b6a86
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-08 21:33:25 +00:00
Makoto Onuki
c2e3e73deb Support native SOs in ravenwood runtime am: 68676578b1
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2952952

Change-Id: I8dc233fe93227af458fe2c0fa2c6e4d9f5cf6c56
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-08 21:33:10 +00:00
Yu Liu
01beacee28 Merge "Add dedup flag to aconfig dump-cache calls." into main 2024-02-08 20:58:55 +00:00
Yu Liu
748ade2f85 Add dedup flag to aconfig dump-cache calls.
Bug: None
Test: CI
Change-Id: I34a73576a7a7ea43178895049a0f7dbcd9e329bc
2024-02-08 19:11:39 +00:00
Makoto Onuki
68676578b1 Support native SOs in ravenwood runtime
Bug: 323931246
Test: m nothing --no-skip-soong-tests
Test: Manual test using a locally created build rule

Merged-in: Icd15d63c29560dc219dba07cc9db2a5e1b883532
Change-Id: Icd15d63c29560dc219dba07cc9db2a5e1b883532
2024-02-08 09:25:41 -08:00
Jeff Sharkey
4bbf86f4f0 Include Ravenwood tests in general-tests.
EngProd has indicated that we need to be included in that suite to
support TEST_MAPPING files in their infrastructure.

Bug: 308854804
Test: TH
Merged-in: I763b033f0f5f275091db45ab62df6af48dcddc66
Change-Id: I763b033f0f5f275091db45ab62df6af48dcddc66
2024-02-08 09:25:41 -08:00
Jeff Sharkey
ddb5152a9f Fix tests that are broken on darwin builds.
Bug: 292141694
Test: m nothing --no-skip-soong-tests
Merged-in: Ie9a2f8961a8c43bbe1388471fc0d7aadc1456c57
Change-Id: Ie9a2f8961a8c43bbe1388471fc0d7aadc1456c57
2024-02-08 09:25:41 -08:00
Makoto Onuki
4a9869d066 Add android_ravenwood_test build rule
Modeled after android_robolectric_test.

Bug: 292141694
Test: m nothing --no-skip-soong-tests
Test: m hoststubgen ravenwood-runtime tradefed atest && atest-dev HostStubGenTest-framework-test
Merged-in: Ibef8953db45b86264c8a827868793b42f8f2d6ab
Change-Id: Ibef8953db45b86264c8a827868793b42f8f2d6ab
2024-02-08 09:25:35 -08:00
Zi Wang
0a8522286e Merge "Ignore proguardRaiseTag in jarjar repackage" into main am: 5eab6d0a31
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2955307

Change-Id: I204ca7b679c250dd7617c18556d6dc5fde04f8e0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-08 00:33:44 +00:00
Zi Wang
bacee38680 Ignore proguardRaiseTag in jarjar repackage
Test: CI

Bug: 310504781

Ignore-AOSP-First: Will cp to aosp
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:ffd200a12546237b1ac0f615c73cb3c9614a8237)
Merged-In: I1c926f374cc6e0f963c32d049ea120b8fbf18eb1
Change-Id: I1c926f374cc6e0f963c32d049ea120b8fbf18eb1
2024-02-07 19:57:14 +00:00
Spandan Das
715a3892e1 Merge changes Ia899d75e,I9f885ffa into main am: f8c004263a
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2951496

Change-Id: I53d240f6e28a95ec60fa43f3c68814f16841dee6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-07 01:44:15 +00:00
Jihoon Kang
5919815f80 Enable exportable stubs to include READ_WRITE aconfig flagged apis
Currently in SDK build, "exportable" stubs are used to generate the
android.jar and the corresponding build artifacts, as well as the
hiddenapi flags. "exportable" stubs only include the flagged apis that
are "enabled" and "read only", and exclude all other flagged apis. This
will be replaced with "runtime" stubs in the long run, which include
"read_write" flagged apis on top of the "enabled" and "read only" flags.

Prior to Trunk Stable, the SDK build did not distinguish the target
audience of the SDK. That is, the identical build target was used to
generate the SDK targeted toward the Google3 developers (i.e. Google3
SDK drop) and the SDK targeted toward the public (i.e. Developer
Preview). However, given that we now have "experimental" apis with Trunk
Stable, there are demands to differentiate the SDK based on the target
audience, so that the "experimental" APIs are included in the SDK
targeted toward Google3 while they are excluded in the public facing
SDK.

The long term solution to achieve this is to generate the hiddenapi
flags and (conditionally) the SDKs using the runtime stubs. However, as
this is high priority, this change resolves the problem by modifying the
filter condition of the "exportable" stubs to include the "read_write"
flagged apis on top of the "enabled" and "read only" flagged apis when
the value of the default-false build flag "RELEASE_EXPORT_RUNTIME_APIS"
is set to true.

Note that this is a temporary solution; However, we might need to keep
the "RELEASE_EXPORT_RUNTIME_APIS" build flag even in the long run to
determine what set of apis are included in the generated SDK, based on
the target audience of the SDK.

Test: m nothing --no-skip-soong-tests
Bug: 323188988
Change-Id: If0d5fa74b3ba6f4a57c86aade8d340f149a657a2
2024-02-07 01:17:59 +00:00
Spandan Das
161e468774 Use source_module_name to determine the contents of prebuilt apexes
There are a couple of instances in apex/ and java/ that rely on the naming
convention that the jars exported by prebuilt apexes follow the name of
the java_sdk_library_import, minus the prebuilt_ prefix. With muliple
module sdk prebuilts in trunk stable, this naming convention might not
be valid. Use `source_module_name` instead.

```
prebuilt_sscp_fragment {name: "", contents: ["service-foo.v2"]}
java_import {name: "service-foo.v2", source_module_name: "service-foo"},
```

We should use service-foo and not service-foo.v2 because
1. The prebuilt apex contains service-foo.dex
2. PRODUCT_*JARS will contain service-foo and not service-foo.v2

For clarity, this CL does not drop the current mechanism where prebuilt bcp
fragments create a dependency edge to prebuilt java or java_sdk_library
imports. There is still some discussion around whether we can remove
that completely (b/320711431). If we were to do that, then the
Android.bp files will become

```
prebuilt_sscp_fragment {name: "", contents: ["service-foo"]}
```

Bug: 322175508

Test: Added a unit test

Test: In internal, lunch cf_x86_64_only_phone-next-userdebug && m
nothing # .ninja files identical

Test: In internal, created a parallel set of v2 prebuilts of
java_sdk_library_import and prebuilt_bcp_fragments for adservices && m
nothing # build passes

Change-Id: Ia899d75e826fa1a559368d706eaa65835f748d40
2024-02-06 21:56:05 +00:00
Spandan Das
cc53063b07 Support mechanism to select a specific version of module sdk prebuilt
This CL is the java_system_modules_import equivalent of aosp/2928483.

With trunk stable, we will have multiple versions of art prebuilt apex
in the tree. Each art apex will contribute its own module sdk, i.e. its
own prebuilt system_modules to the build. This CL introduces a mechanism
to selelect a specific version of prebuilt system modules using
apex_contributions.

Implementation details: Create a new source_module_name property to
identify the root module. rdeps referring to the root module will get
redirected if necessary.

Bug: 322175508

Test: Added a unit test
Change-Id: I9f885ffa5afea96d2e6ce077264d3b207ed7e80d
2024-02-06 21:55:50 +00:00
Spandan Das
a75bd883f4 Merge "Mechanism to select a specific version of java_sdk_library_import" into main am: 7870d329a5
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2938840

Change-Id: Ida9a55976952aa264763cde8acd813e7a3154f83
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-06 18:38:56 +00:00
Spandan Das
7870d329a5 Merge "Mechanism to select a specific version of java_sdk_library_import" into main 2024-02-06 17:54:58 +00:00
Spandan Das
23956d12ab Mechanism to select a specific version of java_sdk_library_import
This CL is the java_sdk_library_import equivalent of aosp/2928483.

With trunk stable, we will have multiple apex prebuilts in the tree.
Each apex prebuilt will have its own module sdk. This means that it is
possible to have mutliple versions of `framework-foo` in the tree. This
CL introduces a mechanism to select a specific versioned
java_sdk_library prebuilt.

Implementation details
- Add a `source_module_name` property to java_sdk_library_import. This
  will identify the source equivalent of the jsl in packages/modules.
  This used to be implicit - i.e. the name without the prebuilt_ prefix.
  With multiple prebuilts, this has to become explicit.
- Set appropriate `source_module_name`(s) in the dynamically created
  child modules. e.g. the source_module_name on sdklib.v1.stubs and
  sdklib.v2.stubs will both be sdklib.stubs, assuming
  `source_module_name` on the top-level jsl_import is sdklib
- Add a private Created_by_java_sdk_library_name property to java_import
  and prebuilt_stubs_sources modules. This will be used to idenfity the
  top level java_sdk_library_import that was used to create these child
  modules. This is necessary because java_sdk_library_imoprt is a macro
  that creates 1:many modules. However, to avoid toil, only the
  top-level java_sdk_library_import will be listed in
  `apex_contributions`. This new property will be used for
  source/prebuilt selection in android/prebuuilt.go
- Rename BaseModuleName in commonSdkLibraryAndImportModule to
  RootLibraryName. This is necesssary because the former is now reserved
  to identify the source equivalent of a prebuilt module (maybe we
  should rename it?)

Bug: 322175508

Test: Added a unit test
Change-Id: If6aa6b0e939a07f8263874941413908383c81a78
2024-02-06 04:14:59 +00:00
Zi Wang
292c21ee68 Merge "Automatically propagate jarjar rules for aconfig libraries" into main am: 4f0b9b4289
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2951493

Change-Id: I4a7ffbda0c6326bbb64bedeee4bb8f652cd79243
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-06 00:13:36 +00:00
Joe Onorato
349ae8dd6b Automatically propagate jarjar rules for aconfig libraries
Test: treehugger
Bug: 310504781
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:97c03a6dc659102ff40793759fb3f0f18164a85b)
Merged-In: I639d12ff33175b7bed7e7d0595a40dd9b0d99367
Change-Id: I639d12ff33175b7bed7e7d0595a40dd9b0d99367
2024-02-05 22:46:00 +00:00
Spandan Das
7f606c16ef Merge "Do not replace the direct edge between rdeps and java_sdk_library" into main am: b01db714e3
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2944724

Change-Id: Idba2adcc019825991b35da9c5da6b7b7556cba4d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-05 18:51:26 +00:00
Spandan Das
b01db714e3 Merge "Do not replace the direct edge between rdeps and java_sdk_library" into main 2024-02-05 17:04:55 +00:00
Spandan Das
81d95c5824 Do not replace the direct edge between rdeps and java_sdk_library
android/prebuilt.go#isSelected has a special-case inside it to ignore
apex_contributions contents for the top-level java_sdk_library hook.
This was necessary because even though we might want source stubs in
next builds, we still needed the top-level prebuilt hook to be active to
emit the dexpreopt rules to .mk.

This worked fine for rdeps that create a dependency edge on the child
stub modules of java_sdk_library. Notable examples include the full
android api stubs created by f/b/api.go. In postdeps mutator, these
expanded deps get rewritten to source/prebuilt if necesssry.

The exception to this are workflows which depend on the top-level hook
directly via `libs`. We resolve these rdeps to an appropriate provider
during GenerateAndroidBuildActions stage. This meant that rdeps were
getting prebuilt stubs of these even in next builds.

Bug: 323454855

Test: Added a unit test

Test: lunch cf_x86_64_only_phone-next-userdebug
Test: aninja -t query
out/soong/.intermediates/packages/modules/Permission/SafetyCenter/Config/safety-center-config/android_common/javac/safety-center-config.jar
| grep prebilts/module_sdk # empty now

Change-Id: Id91333d88055519f3c58ab40466f9628085f5180
2024-02-03 00:17:16 +00:00
Jihoon Kang
094cc9a9aa Merge "Modify LOCAL_DROIDDOC_* to export the exportable artifacts" into main am: 7dacb0e872
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2944801

Change-Id: I34ae89dd0a07180db9ad776a71b2711d0e4523f7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-02 20:38:00 +00:00
Jihoon Kang
7dacb0e872 Merge "Modify LOCAL_DROIDDOC_* to export the exportable artifacts" into main 2024-02-02 19:51:14 +00:00
Jihoon Kang
246690a400 Modify LOCAL_DROIDDOC_* to export the exportable artifacts
LOCAL_DROIDDOC_STUBS_SRCJAR is used to copy entries to OUT_DOCS in
build/make/core/soong_droiddoc_prebuilt.mk, which defines the copy rules
to generate the docs. When generating the documentation, the exportable
stubs should be set as dependencies, so that disabled flagged apis are
not exposed. Thus, this change modifies the entries passed to
LOCAL_DROIDDOC_STUBS_SRCJAR from the everything stubs to the exportable
stubs.

Likewise, all other LOCAL_DROIDDOC_* entries are copied to dist during
sdk builds. Therefore, this change replaces the everything artifacts to
the exportable artifacts.

This change also config-guards the exportable stubs generation, so that
the exportable stubs are not generated when the droidstubs module does
not generate the stubs.

Test: m docs dist && inspect ninja file to verify that everything stubs are not exported
Bug: 323261972
Change-Id: Ic04fb47ad311aefafc2f1a7b8bb15525050ecd2e
2024-02-02 18:21:27 +00:00
Treehugger Robot
caf3676945 Merge "Determine GC type based on BUILT_KERNEL_VERSION_FILE." into main am: d8cb9505f8
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2919746

Change-Id: I8f5460e206ecfb91af61346b7e2a15f78fced4fa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-02 03:26:26 +00:00
Jihoon Kang
f10ad16f31 Merge "Fix api versions xml file handling in droidstubs" into main am: c240996829
Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2929610

Change-Id: I336764a515a61ac7565e85760bfb56d7c2253824
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
2024-02-02 03:25:45 +00:00
Treehugger Robot
d8cb9505f8 Merge "Determine GC type based on BUILT_KERNEL_VERSION_FILE." into main 2024-02-02 03:01:57 +00:00
Jihoon Kang
c240996829 Merge "Fix api versions xml file handling in droidstubs" into main 2024-02-02 02:31:17 +00:00
Jiakai Zhang
7d292228c1 Determine GC type based on BUILT_KERNEL_VERSION_FILE.
How it works:
1. build/make/core/Makefile generates a txt file with the kernel
   version, which is taken from an explicit BOARD_KERNEL_VERSION value,
   or extracted from the kernel image on the source tree, or extracted
   from the kernel image extracted from the prebuilt boot.img.
   The file is saved at
   $ANDROID_PRODUCT_OUT/obj/PACKAGING/check_vintf_all_intermediates/kernel_version.txt.
2. If PRODUCT_ENABLE_UFFD_GC is "default", meaning the GC type needs to
   be determined by the kernel version, build/make/core/Makefile copies
   kernel_version.txt to
   out/soong/dexpreopt/kernel_version_for_uffd_gc.txt.
3. build/soong/dexpreopt/config.go writes the the UFFD GC flag to
   out/soong/dexpreopt/uffd_gc_flag.txt. The flag is determined by an
   explicit PRODUCT_ENABLE_UFFD_GC value or by contruct_uffd_gc_flag.py,
   which reads kernel_version_for_uffd_gc.txt and determines the flag
   accordingly.
4. dex2oat takes the UFFD GC flag from uffd_gc_flag.txt.
5. post_process_props.py mangles ro.dalvik.vm.enable_uffd_gc based on
   the same logic.

Bug: 321751629
Bug: 319554951
Bug: 318763448
Bug: 319648491
Test: m --no-skip-soong-tests nothing
Test: atest uffd_gc_utils_test
Test: Build with `OVERRIDE_ENABLE_UFFD_GC=default m` for device with no
  UFFD support -
  1. Check the existence of `-Xgc:CMC` in
     out/soong/dexpreopt_arm64/dex_bootjars/android/system/framework/arm64/boot.invocation
     (dex2oat invocation for a boot image)
  2. Check the existence of `-Xgc:CMC` in
     out/soong/.intermediates/packages/apps/Settings/Settings/android_common/dexpreopt/Settings/oat/arm64/package.invocation
     (dex2oat invocation for an app defined in .bp)
  3. Check the existence of `-Xgc:CMC` in
     $ANDROID_PRODUCT_OUT/obj/APPS/Dialer_intermediates/oat/arm64/package.invocation
     (dex2oat invocation for an app defined in .mk)
  4. Check the value of ro.dalvik.vm.enable_uffd_gc in
     $ANDROID_PRODUCT_OUT/product/etc/build.prop
Test: Build with `OVERRIDE_ENABLE_UFFD_GC=default m` for device with
  UFFD support, and do the steps above.
Test: Build with `OVERRIDE_ENABLE_UFFD_GC=true m`, and do the steps
  above.
Test: Build with `OVERRIDE_ENABLE_UFFD_GC=false m`, and do the steps
  above.

Change-Id: I035ad32233e49e2a30ce11f6c7c318a648511ef8
2024-02-02 09:23:37 +08:00