Comments (7)
igor-brishkoski
commented on September 21, 2024
1
Any updates here? Facing the same issue.
java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "__extenddftf2" referenced by "/data/app/~~9i8SALkmFVE3inoqZObfVQ==/com.example.android-LszkPsK4KaEepki_EkBFdA==/base.apk!/lib/x86_64/libtest.so
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bbqsrc
commented on September 21, 2024
I checked NDK to see if that builtin exists and it seems to be here:
/home/nib/Android/Sdk/ndk/26.1.10909125/toolchains/llvm/prebuilt/linux-x86_64/lib/clang/17/lib/linux/libclang_rt.builtins-x86_64-android.a.
Builds correctly for me on macOS with NDK v26.0.10792818, so I suspect the NDK is doing nonsensical things again, or you need to update your cargo-ndk.
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bbqsrc
commented on September 21, 2024
@NiallBunting this is an issue with matrix-rust-sdk. You need to set NDK_CLANG_VERSION to the clang version relative to the NDK you're targetting. See their build.rs file.
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igor-brishkoski
commented on September 21, 2024
Not sure why you closed this, seems other people are having the same issue with different libraries.
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bbqsrc
commented on September 21, 2024
This has nothing to do with cargo-ndk and everything to do with not linking to the correct libraries.
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NiallBunting
commented on September 21, 2024
Ah I think it might actually be caused by this: rust-lang/rust#109717
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9p4
commented on September 21, 2024
Made some changes to matrix-rust-sdk to get this working:
diff --git a/bindings/matrix-sdk-crypto-ffi/build.rs b/bindings/matrix-sdk-crypto-ffi/build.rs
index a3572f17f..39663cab2 100644
--- a/bindings/matrix-sdk-crypto-ffi/build.rs
+++ b/bindings/matrix-sdk-crypto-ffi/build.rs
@@ -18,13 +18,16 @@ fn setup_x86_64_android_workaround() {
"Unsupported OS. You must use either Linux, MacOS or Windows to build the crate."
),
};
- const DEFAULT_CLANG_VERSION: &str = "14.0.7";
+ const DEFAULT_CLANG_VERSION: &str = "17";
+ const DEFAULT_NDK_VERSION: &str = "26.3.11579264";
let clang_version =
env::var("NDK_CLANG_VERSION").unwrap_or_else(|_| DEFAULT_CLANG_VERSION.to_owned());
+ let ndk_version =
+ env::var("NDK_VERSION").unwrap_or_else(|_| DEFAULT_NDK_VERSION.to_owned());
let linux_x86_64_lib_dir = format!(
- "toolchains/llvm/prebuilt/{build_os}-x86_64/lib64/clang/{clang_version}/lib/linux/"
+ "toolchains/llvm/prebuilt/{build_os}-x86_64/lib/clang/{clang_version}/lib/linux/"
);
- println!("cargo:rustc-link-search={android_ndk_home}/{linux_x86_64_lib_dir}");
+ println!("cargo:rustc-link-search={android_ndk_home}/{ndk_version}/{linux_x86_64_lib_dir}");
println!("cargo:rustc-link-lib=static=clang_rt.builtins-x86_64-android");
}
}
diff --git a/bindings/matrix-sdk-ffi/build.rs b/bindings/matrix-sdk-ffi/build.rs
index e22f54451..217b28750 100644
--- a/bindings/matrix-sdk-ffi/build.rs
+++ b/bindings/matrix-sdk-ffi/build.rs
@@ -18,13 +18,16 @@ fn setup_x86_64_android_workaround() {
"Unsupported OS. You must use either Linux, MacOS or Windows to build the crate."
),
};
- const DEFAULT_CLANG_VERSION: &str = "14.0.7";
+ const DEFAULT_CLANG_VERSION: &str = "17";
+ const DEFAULT_NDK_VERSION: &str = "26.3.11579264";
let clang_version =
env::var("NDK_CLANG_VERSION").unwrap_or_else(|_| DEFAULT_CLANG_VERSION.to_owned());
+ let ndk_version =
+ env::var("NDK_VERSION").unwrap_or_else(|_| DEFAULT_NDK_VERSION.to_owned());
let linux_x86_64_lib_dir = format!(
- "toolchains/llvm/prebuilt/{build_os}-x86_64/lib64/clang/{clang_version}/lib/linux/"
+ "toolchains/llvm/prebuilt/{build_os}-x86_64/lib/clang/{clang_version}/lib/linux/"
);
- println!("cargo:rustc-link-search={android_ndk_home}/{linux_x86_64_lib_dir}");
+ println!("cargo:rustc-link-search={android_ndk_home}/{ndk_version}/{linux_x86_64_lib_dir}");
println!("cargo:rustc-link-lib=static=clang_rt.builtins-x86_64-android");
}
}from cargo-ndk.
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