Gray Mackall 4be1725b6b
[Reland] Don't strip symbols from libapp.so on android by default (#181275)
Relands https://github.com/flutter/flutter/pull/162464
Fixes https://github.com/flutter/flutter/issues/170664

The only test that failed last time was `Linux_pixel_7pro
android_obfuscate_test`, and I ran it locally (`flutter test
test/integration.shard/android_obfuscate_test.dart `) to both repro the
failure and verify it passes on this branch with the additional changes.

Also does some stuff in the FGP:

The reason we failed the tests last time was we were bundling of the
libapp.so code into a jar in the aar case, instead of simply including
it as its own file in the source sets. I let gemini go on that part,
modifying it to no longer pack as a jar, but it looks correct to me. Now
that the `libapp.so` file is simply included in this case, AGP is able
to strip it (it's not hidden inside a jar).

Because this changes the FGP build process for add to app, I manually
verified that the add to app flow isn't broken for including a flutter
module both as source and as an aar.

<details>
  <summary>Before and after logs from the gradle task output</summary>
  
Before:
```
                     > Task :flutter:stripReleaseDebugSymbols NO-SOURCE
                     Skipping task ':flutter:stripReleaseDebugSymbols' as it has no source files and no previous output files.
```

After:

```
                    Task ':flutter:stripReleaseDebugSymbols' is not up-to-date because:
                       No history is available.
                     The input changes require a full rebuild for incremental task ':flutter:stripReleaseDebugSymbols'.
                     C/C++: android.ndkVersion from module build.gradle is [28.2.13676358]
                     C/C++: android.ndkVersion from module build.gradle is [28.2.13676358]
                     C/C++: android.ndkPath from module build.gradle is not set
                     C/C++: android.ndkPath from module build.gradle is not set
                     C/C++: ndk.dir in local.properties is not set
                     C/C++: ndk.dir in local.properties is not set
                     C/C++: Not considering ANDROID_NDK_HOME because support was removed after deprecation period.
                     C/C++: Not considering ANDROID_NDK_HOME because support was removed after deprecation period.
                     C/C++: android.ndkVersion from module build.gradle is [28.2.13676358]
                     C/C++: android.ndkPath from module build.gradle is not set
                     C/C++: sdkFolder is /Users/mackall/Library/Android/sdk
                     C/C++: ndk.dir in local.properties is not set
                     C/C++: Not considering ANDROID_NDK_HOME because support was removed after deprecation period.
                     C/C++: sdkFolder is /Users/mackall/Library/Android/sdk
                     C/C++: sdkFolder is /Users/mackall/Library/Android/sdk
                     Starting process 'command '/Users/mackall/Library/Android/sdk/ndk/28.2.13676358/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-strip''. Working directory:
                     /Users/mackall/development/BugTesting/mblahm/.android/Flutter Command: /Users/mackall/Library/Android/sdk/ndk/28.2.13676358/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-strip
                     --strip-unneeded -o
                     /Users/mackall/development/BugTesting/mblahm/.android/Flutter/build/intermediates/stripped_native_libs/release/stripReleaseDebugSymbols/out/lib/armeabi-v7a/libapp.so
                     /Users/mackall/development/BugTesting/mblahm/.android/Flutter/build/intermediates/merged_native_libs/release/mergeReleaseNativeLibs/out/lib/armeabi-v7a/libapp.so
                     Starting process 'command '/Users/mackall/Library/Android/sdk/ndk/28.2.13676358/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-strip''. Working directory:
                     /Users/mackall/development/BugTesting/mblahm/.android/Flutter Command: /Users/mackall/Library/Android/sdk/ndk/28.2.13676358/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-strip
                     --strip-unneeded -o
                     /Users/mackall/development/BugTesting/mblahm/.android/Flutter/build/intermediates/stripped_native_libs/release/stripReleaseDebugSymbols/out/lib/x86_64/libapp.so
                     /Users/mackall/development/BugTesting/mblahm/.android/Flutter/build/intermediates/merged_native_libs/release/mergeReleaseNativeLibs/out/lib/x86_64/libapp.so
                     Starting process 'command '/Users/mackall/Library/Android/sdk/ndk/28.2.13676358/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-strip''. Working directory:
                     /Users/mackall/development/BugTesting/mblahm/.android/Flutter Command: /Users/mackall/Library/Android/sdk/ndk/28.2.13676358/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-strip
                     --strip-unneeded -o
                     /Users/mackall/development/BugTesting/mblahm/.android/Flutter/build/intermediates/stripped_native_libs/release/stripReleaseDebugSymbols/out/lib/arm64-v8a/libapp.so
                     /Users/mackall/development/BugTesting/mblahm/.android/Flutter/build/intermediates/merged_native_libs/release/mergeReleaseNativeLibs/out/lib/arm64-v8a/libapp.so
                     Successfully started process 'command '/Users/mackall/Library/Android/sdk/ndk/28.2.13676358/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-strip''
                     Successfully started process 'command '/Users/mackall/Library/Android/sdk/ndk/28.2.13676358/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-strip''
                     Successfully started process 'command '/Users/mackall/Library/Android/sdk/ndk/28.2.13676358/toolchains/llvm/prebuilt/darwin-x86_64/bin/llvm-strip''
```

</details>



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---------

Co-authored-by: Gray Mackall <mackall@google.com>
2026-01-26 20:18:24 +00:00
..
2025-11-25 00:41:40 +00:00

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