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40 lines
2.3 KiB
Python
40 lines
2.3 KiB
Python
#!/usr/bin/python2.7
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import os
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import KernelCollection
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# Check fine grained stripping of exports
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def check(kernel_cache):
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kernel_cache.buildKernelCollection("arm64", "/strip-kexts-exports/main.kc", "/strip-kexts-exports/main.kernel", "/strip-kexts-exports/extensions", ["com.apple.foo:exports", "com.apple.bar"], [])
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kernel_cache.analyze("/strip-kexts-exports/main.kc", ["-layout", "-arch", "arm64"])
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# Check the symbols
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kernel_cache.analyze("/strip-kexts-exports/main.kc", ["-symbols", "-arch", "arm64"])
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assert len(kernel_cache.dictionary()["dylibs"]) == 3
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# kernel
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assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel"
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assert len(kernel_cache.dictionary()["dylibs"][0]["global-symbols"]) == 2
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assert kernel_cache.dictionary()["dylibs"][0]["global-symbols"][0]["name"] == "__mh_execute_header"
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assert kernel_cache.dictionary()["dylibs"][0]["global-symbols"][1]["name"] == "__start"
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assert len(kernel_cache.dictionary()["dylibs"][0]["local-symbols"]) == 1
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assert kernel_cache.dictionary()["dylibs"][0]["local-symbols"][0]["name"] == "_z"
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# bar
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assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.bar"
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assert len(kernel_cache.dictionary()["dylibs"][1]["global-symbols"]) == 1
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assert kernel_cache.dictionary()["dylibs"][1]["global-symbols"][0]["name"] == "_bar"
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assert len(kernel_cache.dictionary()["dylibs"][1]["local-symbols"]) == 1
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assert kernel_cache.dictionary()["dylibs"][1]["local-symbols"][0]["name"] == "_y"
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# foo
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assert kernel_cache.dictionary()["dylibs"][2]["name"] == "com.apple.foo"
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assert kernel_cache.dictionary()["dylibs"][2]["global-symbols"] == "none"
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assert len(kernel_cache.dictionary()["dylibs"][2]["local-symbols"]) == 1
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assert kernel_cache.dictionary()["dylibs"][2]["local-symbols"][0]["name"] == "_x"
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# [~]> xcrun -sdk iphoneos.internal cc -arch arm64 -Wl,-static -mkernel -nostdlib -Wl,-add_split_seg_info -Wl,-rename_section,__TEXT,__text,__TEXT_EXEC,__text -Wl,-e,__start -Wl,-pagezero_size,0x0 -Wl,-pie main.c -o main.kernel
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# [~]> xcrun -sdk iphoneos.internal cc -arch arm64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info foo.c -o extensions/foo.kext/foo
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# [~]> xcrun -sdk iphoneos.internal cc -arch arm64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info bar.c -o extensions/bar.kext/bar
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# [~]> rm -r extensions/*.kext/*.ld
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