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c44fd84507
This change adds support for attaching uprobes to shared objects located in APKs, which is relevant for Android systems where various libraries may reside in APKs. To make that happen, we extend the syntax for the "binary path" argument to attach to with that supported by various Android tools: <archive>!/<binary-in-archive> For example: /system/app/test-app/test-app.apk!/lib/arm64-v8a/libc++_shared.so APKs need to be specified via full path, i.e., we do not attempt to resolve mere file names by searching system directories. We cannot currently test this functionality end-to-end in an automated fashion, because it relies on an Android system being present, but there is no support for that in CI. I have tested the functionality manually, by creating a libbpf program containing a uretprobe, attaching it to a function inside a shared object inside an APK, and verifying the sanity of the returned values. Signed-off-by: Daniel Müller <deso@posteo.net> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20230301212308.1839139-4-deso@posteo.net |
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