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Patch the "SONAME" when building for Android

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難度
4/5
預估耗時
3-5 天
新手友好度
38/100
Issue 類型
缺陷
描述清晰度
基本清楚
活躍度
停滯
技術堆疊
android, typescript

研究方向

從 packages/host/src/node/prebuilds/android.ts 和 packages/host/src/node/cli/android.ts 中的 TODOs 開始,接著追蹤 Android 程式庫如何重新命名及安裝。驗證重新命名後的程式庫及其相依項目的 ELF 中繼資料;當 SONAME 和 DT_NEEDED 項目參照的檔案名稱在建置後確實存在時,即表示完成。

由索引模型根據 Issue 內容生成。

描述

Android 🤖 CMake RN good first issue

When we're building for Android we rename the dynamic library files but, we don't update the SONAME which should be updatable by running /toolchains/llvm/prebuilt//bin/llvm-objcopy --set-soname=libnewname.so liboriginal.so


The two TODOs in the tree that track this

Adding permalinks (against 29a527d) since both halves of the renaming problem are marked in the source but only the first was described above.

1. The renamed library's own SONAMEprebuilds/android.ts copies the library to lib<name>.so and leaves its install path pointing at the pre-rename name:

https://github.com/callstackincubator/react-native-node-api/blob/29a527d87fa8cb965b0048b1b4c1cff2b0eab281/packages/host/src/node/prebuilds/android.ts#L62-L65

This is what the issue describes — llvm-objcopy --set-soname.

2. The DT_NEEDED entries of libraries that depend on a renamed one — the companion problem, marked separately in cli/android.ts:

https://github.com/callstackincubator/react-native-node-api/blob/29a527d87fa8cb965b0048b1b4c1cff2b0eab281/packages/host/src/node/cli/android.ts#L46-L52

Fixing only the SONAME is not enough when one addon links against another: the dependent library's DT_NEEDED still names the original library, so the dynamic linker looks for a file that no longer exists under that name. llvm-objcopy does not rewrite DT_NEEDED; patchelf --replace-needed <old> <new> does, or the entries can be patched directly.

Both are the same underlying cause — we rename files after the linker has already baked the old names into the ELF headers — so they are probably best fixed together.

主要語言
TypeScript
星號
188
分支
10
平均合併
2 天 17 小時
30 天內合併 PR
3

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