android package with libc++_shared.so

[jiqimaogou]

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Description of the problem / feature request:

On Android, bazel always libc++_static instead of libc++_shared.so

I want to make so link with libc++_shared.so, but bazel always libc++_static.a.

https://github.com/bazelbuild/bazel/blob/master/src/main/java/com/google/devtools/build/lib/rules/android/AndroidBinary.java

  private static RuleConfiguredTargetBuilder init(
      RuleContext ruleContext,
      NestedSetBuilder<Artifact> filesBuilder,
      CppSemantics cppSemantics,
      JavaSemantics javaSemantics,
      AndroidSemantics androidSemantics)
      throws InterruptedException, RuleErrorException {

    ResourceDependencies resourceDeps =
        ResourceDependencies.fromRuleDeps(ruleContext, /* neverlink= */ false);

    validateRuleContext(ruleContext);

    NativeLibs nativeLibs =
        NativeLibs.fromLinkedNativeDeps(
            ruleContext,
            ImmutableList.of("deps"),
            androidSemantics.getNativeDepsFileName(),
            cppSemantics); // always create static mode cc_library!!!!!!

Feature requests: what underlying problem are you trying to solve with this feature?

I have many libraries depends libc++, if I use libc++_static, every library contains libc++_static, which make apk too large.

I want to package libc++_shared.so, how do I do?

Bugs: what's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

bazel build a android apk.

What operating system are you running Bazel on?

mac 10.14.6

What's the output of bazel info release?

Replace this line with your answer.

If bazel info release returns "development version" or "(@Non-Git)", tell us how you built Bazel.

0.29.1-homebrew

What's the output of git remote get-url origin ; git rev-parse master ; git rev-parse HEAD

Have you found anything relevant by searching the web?

no found.

Any other information, logs, or outputs that you want to share?

no

[jiqimaogou]

bazel --android_dynamic_mode fully is not working too.

[mapleyuan]

I have the same problem. Any update?

[bernardyip]

My current workaround is to use the .so from here https://github.com/tintintin/android-opencv-example

[AndroidInternal]

ping..

Same problem.

[github-actions]

Thank you for contributing to the Bazel repository! This issue has been marked as stale since it has not had any activity in the last 1+ years. It will be closed in the next 14 days unless any other activity occurs or one of the following labels is added: "not stale", "awaiting-bazeler". Please reach out to the triage team (@bazelbuild/triage) if you think this issue is still relevant or you are interested in getting the issue resolved.

[cpsauer]

@bazelbuild/triage, I think control over which C++ standard library to use is very much still relevant, though this should probably now be moved over to https://github.com/bazelbuild/rules_android_ndk

Linking the correct stl is a key think to think about on android as a result of the NDK's design. See https://developer.android.com/ndk/guides/cpp-support. This issue is also touched on in (7.) of #5

[cpsauer]

(@bazelbuild/triage doesn't seem to create a tag (no link) so I'm going to tag @sgowroji and @Pavank1992 manually. Please coach me if you'd have preferred otherwise--and maybe update the bot's instructions)