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lineage: Enable R8 code shrinking and optimizations

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commit b11f60fd9b601caa10f8caec5c9f3a10c5082d68
Author: Jared Duke <jdduke@google.com>
Date:   Wed Feb 16 15:43:55 2022 -0800

    Enable R8 code shrinking for system_server on Pixel

    Opt in to whole-program Java optimizations via R8 for Pixel devices.
    This can be explicitly disabled during builds via
    `SYSTEM_OPTIMIZE_JAVA=false m`.

    Note that this change only enables code shrinking for system_server,
    and should not impact stack traces. Additional R8 optimizations
    will be enabled after broader improvements to retracing infrastructure.
    See go/aperf-system-r8-faq for additional details and guidance. Also
    note that R8 shrinking optimizations are implicitly disabled in ENG builds.

    Enabling for non-Pixel devices will proceed in stages as we flesh
    out infrastructure and validate with test populations.

    Results: services.jar (20MB -> 17MB)

    Bug: 210510433
    Test: m + atest FrameworksServicesTests + manual testing on Raven
    Change-Id: I13c0674105aa2cab7722f52344486e86e3bde26b

commit ecc5901ee57253edb0fdde5d5099c4e1078f7b6f
Author: Jared Duke <jdduke@google.com>
Date:   Tue Jan 4 15:21:39 2022 -0800

    Enable SystemUI R8 optimizations for Pixel

    Opt in to whole-program Java optimizations via R8 for Pixel devices.
    This can be explicitly disabled during builds via
    `SYSTEMUI_OPTIMIZE_JAVA=false m`.

    Note that this change does introduce changes to stack traces that
    may require retracing for fully accurate debugging and diagonstics.
    See go/aperf-system-r8-faq for additional details and guidance. Also
    note that optimizations are implicitly disabled in ENG builds.

    Enabling for non-Pixel devices will proceed in stages as we flesh
    out infrastructure and validate with test populations.

    Results:
     * SystemUIGoogle.apk (40MB -> 35MB)
     * SystemUIGoogle.odex (32MB -> 25MB)

    Test: m + atest SystemUITests + presubmit + manual testing on Raven
    Bug: 203472868
    Change-Id: I67ff2c06885b21164a3034e9922163337e8787f3

Change-Id: Ib89500d70780fdf8485aaf04976d4cc607b4ccf7
This commit is contained in:
Jared Duke
2025-10-20 16:25:06 +05:45
committed by Bruno Martins
parent 3d4d384139
commit 00d7786f61
1 changed files with 5 additions and 0 deletions
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5
config/common.mk
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@@ -114,6 +114,11 @@ PRODUCT_ART_TARGET_INCLUDE_DEBUG_BUILD := false
# leave less information available via JDWP.
PRODUCT_MINIMIZE_JAVA_DEBUG_INFO := true
# Enable whole-program R8 Java optimizations for SystemUI and system_server,
# but also allow explicit overriding for testing and development.
SYSTEM_OPTIMIZE_JAVA ?= true
SYSTEMUI_OPTIMIZE_JAVA ?= true
# Disable vendor restrictions
PRODUCT_RESTRICT_VENDOR_FILES := false