X-Git-Url: https://git.saurik.com/apple/dyld.git/blobdiff_plain/d3f1e533acc7f70659b8bde9b6c040974f05e03b..bc3b7c8cda49ed8598284a489c0bb9694c67c6a4:/testing/kernel-cache-tests/ctf-x86_64/test.py diff --git a/testing/kernel-cache-tests/ctf-x86_64/test.py b/testing/kernel-cache-tests/ctf-x86_64/test.py new file mode 100644 index 0000000..b9ac0f2 --- /dev/null +++ b/testing/kernel-cache-tests/ctf-x86_64/test.py @@ -0,0 +1,102 @@ +#!/usr/bin/python2.7 + +import os +import KernelCollection + +# This is the fixups-x86_64 test, but with __CTF inserted so that we can see that CTF doesn't impact the result +# Note the ctf.txt file is 16k just to ensure that if its vm addr wasn't updated, we'd exceed the size of __LINKEDIT with the __CTF + +def check(kernel_cache): + kernel_cache.buildKernelCollection("x86_64", "/ctf-x86_64/main.kc", "/ctf-x86_64/main.kernel", "/ctf-x86_64/extensions", ["com.apple.foo", "com.apple.bar"], []) + kernel_cache.analyze("/ctf-x86_64/main.kc", ["-layout", "-arch", "x86_64"]) + + assert len(kernel_cache.dictionary()["cache-segments"]) == 7 + assert kernel_cache.dictionary()["cache-segments"][0]["name"] == "__TEXT" + assert kernel_cache.dictionary()["cache-segments"][0]["vmAddr"] == "0xFFFFFF8000200000" + assert kernel_cache.dictionary()["cache-segments"][1]["name"] == "__PRELINK_TEXT" + assert kernel_cache.dictionary()["cache-segments"][1]["vmAddr"] == "0xFFFFFF8000204000" + assert kernel_cache.dictionary()["cache-segments"][2]["name"] == "__TEXT_EXEC" + assert kernel_cache.dictionary()["cache-segments"][2]["vmAddr"] == "0xFFFFFF8000204000" + assert kernel_cache.dictionary()["cache-segments"][3]["name"] == "__PRELINK_INFO" + assert kernel_cache.dictionary()["cache-segments"][3]["vmAddr"] == "0xFFFFFF8000208000" + assert kernel_cache.dictionary()["cache-segments"][4]["name"] == "__DATA" + assert kernel_cache.dictionary()["cache-segments"][4]["vmAddr"] == "0xFFFFFF800020C000" + assert kernel_cache.dictionary()["cache-segments"][5]["name"] == "__HIB" + assert kernel_cache.dictionary()["cache-segments"][5]["vmAddr"] == "0xFFFFFF8000100000" + assert kernel_cache.dictionary()["cache-segments"][6]["name"] == "__LINKEDIT" + assert kernel_cache.dictionary()["cache-segments"][6]["vmAddr"] == "0xFFFFFF8000218000" + + assert len(kernel_cache.dictionary()["dylibs"]) == 3 + # main.kernel + assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel" + assert len(kernel_cache.dictionary()["dylibs"][0]["segments"]) == 5 + assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["name"] == "__TEXT" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["vmAddr"] == "0xFFFFFF8000204000" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["name"] == "__DATA" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["vmAddr"] == "0xFFFFFF800020C000" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["name"] == "__HIB" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["vmAddr"] == "0xFFFFFF8000100000" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["name"] == "__CTF" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["vmAddr"] == "0xFFFFFF8000204000" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["vmSize"] == "0x0" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["sections"][0]["vmAddr"] == "0xFFFFFF8000204000" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["sections"][0]["vmSize"] == "0x0" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][4]["name"] == "__LINKEDIT" + assert kernel_cache.dictionary()["dylibs"][0]["segments"][4]["vmAddr"] == "0xFFFFFF8000218000" + # bar.kext + assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.bar" + assert len(kernel_cache.dictionary()["dylibs"][1]["segments"]) == 3 + assert kernel_cache.dictionary()["dylibs"][1]["segments"][0]["name"] == "__TEXT" + assert kernel_cache.dictionary()["dylibs"][1]["segments"][0]["vmAddr"] == "0xFFFFFF8000205000" + assert kernel_cache.dictionary()["dylibs"][1]["segments"][1]["name"] == "__DATA" + assert kernel_cache.dictionary()["dylibs"][1]["segments"][1]["vmAddr"] == "0xFFFFFF8000215000" + assert kernel_cache.dictionary()["dylibs"][1]["segments"][2]["name"] == "__LINKEDIT" + assert kernel_cache.dictionary()["dylibs"][1]["segments"][2]["vmAddr"] == "0xFFFFFF8000218000" + # foo.kext + assert kernel_cache.dictionary()["dylibs"][2]["name"] == "com.apple.foo" + assert len(kernel_cache.dictionary()["dylibs"][2]["segments"]) == 3 + assert kernel_cache.dictionary()["dylibs"][2]["segments"][0]["name"] == "__TEXT" + assert kernel_cache.dictionary()["dylibs"][2]["segments"][0]["vmAddr"] == "0xFFFFFF8000206000" + assert kernel_cache.dictionary()["dylibs"][2]["segments"][1]["name"] == "__DATA" + assert kernel_cache.dictionary()["dylibs"][2]["segments"][1]["vmAddr"] == "0xFFFFFF8000215010" + assert kernel_cache.dictionary()["dylibs"][2]["segments"][2]["name"] == "__LINKEDIT" + assert kernel_cache.dictionary()["dylibs"][2]["segments"][2]["vmAddr"] == "0xFFFFFF8000218000" + + # Check the fixups + kernel_cache.analyze("/ctf-x86_64/main.kc", ["-fixups", "-arch", "x86_64"]) + assert len(kernel_cache.dictionary()["fixups"]) == 12 + # main.kernel: S s = { &func, &func, &g, &func, &g }; + # _s is at 0xFFFFFF8000208000 which is offset 0x108000 from __HIB + assert kernel_cache.dictionary()["fixups"]["0x10C000"] == "kc(0) + 0xFFFFFF8000204FF0 : pointer64" + assert kernel_cache.dictionary()["fixups"]["0x10C008"] == "kc(0) + 0xFFFFFF8000204FF0 : pointer64" + assert kernel_cache.dictionary()["fixups"]["0x10C010"] == "kc(0) + 0xFFFFFF800021402C : pointer64" + assert kernel_cache.dictionary()["fixups"]["0x110000"] == "kc(0) + 0xFFFFFF8000204FF0 : pointer64" + assert kernel_cache.dictionary()["fixups"]["0x110008"] == "kc(0) + 0xFFFFFF800021402C : pointer64" + # main.kernel: PackedS ps = { 0, &func, &func, 0, &g, 0, &g }; + # _ps is at 0xFFFFFF8000210000 which is offset 0x110000 from __HIB + assert kernel_cache.dictionary()["fixups"]["0x114004"] == "kc(0) + 0xFFFFFF8000204FF0 : pointer64" + assert kernel_cache.dictionary()["fixups"]["0x11400C"] == "kc(0) + 0xFFFFFF8000204FF0 : pointer64" + assert kernel_cache.dictionary()["fixups"]["0x114018"] == "kc(0) + 0xFFFFFF800021402C : pointer64" + assert kernel_cache.dictionary()["fixups"]["0x114021"] == "kc(0) + 0xFFFFFF800021402C : pointer64" + # bar.kext: __typeof(&bar) barPtr = &bar; + # _barPtr is at 0xFFFFFF8000210030 which is offset 0x110030 from __HIB + assert kernel_cache.dictionary()["fixups"]["0x115000"] == "kc(0) + 0xFFFFFF8000205FE0" + # foo.kext: int* gPtr = &g; + # _gPtr is at 0xFFFFFF8000210040 which is offset 0x110040 from __HIB + assert kernel_cache.dictionary()["fixups"]["0x115010"] == "kc(0) + 0xFFFFFF8000215018" + # main.kernel: movl _foo, %esp + # The _foo reloc is at 0xFFFFFF8000100002 which is offset 0x2 from __HIB + assert kernel_cache.dictionary()["fixups"]["0x2"] == "kc(0) + 0x100000 : pointer32" + assert len(kernel_cache.dictionary()["dylibs"]) == 3 + assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel" + assert kernel_cache.dictionary()["dylibs"][0]["fixups"] == "none" + assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.bar" + assert kernel_cache.dictionary()["dylibs"][1]["fixups"] == "none" + assert kernel_cache.dictionary()["dylibs"][2]["name"] == "com.apple.foo" + assert kernel_cache.dictionary()["dylibs"][2]["fixups"] == "none" + +# [~]> xcrun -sdk macosx.internal cc -arch x86_64 -Wl,-static -mkernel -nostdlib -Wl,-kernel -Wl,-e,__start -Wl,-pie main.cpp -Wl,-pagezero_size,0x0 -o main.kernel -Wl,-image_base,0xffffff8000200000 -Wl,-segaddr,__HIB,0xffffff8000100000 -Wl,-add_split_seg_info -Wl,-install_name,/usr/lib/swift/split.seg.v2.hack +# [~]> xcrun -sdk macosx.internal ctf_insert main.kernel -arch x86_64 ctf.txt -o main.kernel +# [~]> xcrun -sdk macosx.internal cc -arch x86_64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info foo.c -o extensions/foo.kext/foo +# [~]> xcrun -sdk macosx.internal cc -arch x86_64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info bar.c -o extensions/bar.kext/bar +