testing/kernel-cache-tests/auxkc-no-split-seg/test.py

   1 #!/usr/bin/python2.7
   2
   3 import os
   4 import KernelCollection
   5
   6 # Verify that we can build an auxKC from third party kext's without split seg
   7
   8 def check(kernel_cache):
   9     # First build a kernel collection
  10     kernel_cache.buildKernelCollection("x86_64", "/auxkc-no-split-seg/main.kc", "/auxkc-no-split-seg/main.kernel", "/auxkc-no-split-seg/extensions", [], [])
  11     kernel_cache.analyze("/auxkc-no-split-seg/main.kc", ["-layout", "-arch", "x86_64"])
  12
  13     assert len(kernel_cache.dictionary()["cache-segments"]) == 6
  14     assert kernel_cache.dictionary()["cache-segments"][0]["name"] == "__TEXT"
  15     assert kernel_cache.dictionary()["cache-segments"][0]["vmAddr"] == "0x8000"
  16     assert kernel_cache.dictionary()["cache-segments"][1]["name"] == "__PRELINK_TEXT"
  17     assert kernel_cache.dictionary()["cache-segments"][1]["vmAddr"] == "0xC000"
  18     assert kernel_cache.dictionary()["cache-segments"][2]["name"] == "__TEXT_EXEC"
  19     assert kernel_cache.dictionary()["cache-segments"][2]["vmAddr"] == "0xC000"
  20     assert kernel_cache.dictionary()["cache-segments"][3]["name"] == "__PRELINK_INFO"
  21     assert kernel_cache.dictionary()["cache-segments"][3]["vmAddr"] == "0x10000"
  22     assert kernel_cache.dictionary()["cache-segments"][4]["name"] == "__HIB"
  23     assert kernel_cache.dictionary()["cache-segments"][4]["vmAddr"] == "0x4000"
  24     assert kernel_cache.dictionary()["cache-segments"][5]["name"] == "__LINKEDIT"
  25     assert kernel_cache.dictionary()["cache-segments"][5]["vmAddr"] == "0x14000"
  26
  27     assert len(kernel_cache.dictionary()["dylibs"]) == 1
  28     # main.kernel
  29     assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel"
  30     assert len(kernel_cache.dictionary()["dylibs"][0]["segments"]) == 3
  31     assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["name"] == "__TEXT"
  32     assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["vmAddr"] == "0xC000"
  33     assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["name"] == "__HIB"
  34     assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["vmAddr"] == "0x4000"
  35     assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["name"] == "__LINKEDIT"
  36     assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["vmAddr"] == "0x14000"
  37
  38     # Now build an aux cache using the baseline kernel collection
  39     kernel_cache.buildAuxKernelCollection("x86_64", "/auxkc-no-split-seg/aux.kc", "/auxkc-no-split-seg/main.kc", "", "/auxkc-no-split-seg/extensions", ["com.apple.foo", "com.apple.bar"], [])
  40     kernel_cache.analyze("/auxkc-no-split-seg/aux.kc", ["-layout", "-arch", "x86_64"])
  41
  42     assert len(kernel_cache.dictionary()["cache-segments"]) == 8
  43     assert kernel_cache.dictionary()["cache-segments"][0]["name"] == "__TEXT"
  44     assert kernel_cache.dictionary()["cache-segments"][0]["vmAddr"] == "0x4000"
  45     assert kernel_cache.dictionary()["cache-segments"][1]["name"] == "__PRELINK_TEXT"
  46     assert kernel_cache.dictionary()["cache-segments"][1]["vmAddr"] == "0x8000"
  47     assert kernel_cache.dictionary()["cache-segments"][2]["name"] == "__PRELINK_INFO"
  48     assert kernel_cache.dictionary()["cache-segments"][2]["vmAddr"] == "0x0"
  49     assert kernel_cache.dictionary()["cache-segments"][3]["name"] == "__REGION0"
  50     assert kernel_cache.dictionary()["cache-segments"][3]["vmAddr"] == "0x8000"
  51     assert kernel_cache.dictionary()["cache-segments"][4]["name"] == "__REGION1"
  52     assert kernel_cache.dictionary()["cache-segments"][4]["vmAddr"] == "0x9000"
  53     assert kernel_cache.dictionary()["cache-segments"][5]["name"] == "__REGION2"
  54     assert kernel_cache.dictionary()["cache-segments"][5]["vmAddr"] == "0xA000"
  55     assert kernel_cache.dictionary()["cache-segments"][6]["name"] == "__REGION3"
  56     assert kernel_cache.dictionary()["cache-segments"][6]["vmAddr"] == "0xB000"
  57     assert kernel_cache.dictionary()["cache-segments"][7]["name"] == "__LINKEDIT"
  58     assert kernel_cache.dictionary()["cache-segments"][7]["vmAddr"] == "0xC000"
  59
  60     assert len(kernel_cache.dictionary()["dylibs"]) == 2
  61     # bar.kext
  62     assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.bar"
  63     assert len(kernel_cache.dictionary()["dylibs"][0]["segments"]) == 3
  64     assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["name"] == "__TEXT"
  65     assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["vmAddr"] == "0x8000"
  66     assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["name"] == "__DATA"
  67     assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["vmAddr"] == "0x9000"
  68     assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["name"] == "__LINKEDIT"
  69     assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["vmAddr"] == "0xC000"
  70     # foo.kext
  71     assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.foo"
  72     assert len(kernel_cache.dictionary()["dylibs"][1]["segments"]) == 3
  73     assert kernel_cache.dictionary()["dylibs"][1]["segments"][0]["name"] == "__TEXT"
  74     assert kernel_cache.dictionary()["dylibs"][1]["segments"][0]["vmAddr"] == "0xA000"
  75     assert kernel_cache.dictionary()["dylibs"][1]["segments"][1]["name"] == "__DATA"
  76     assert kernel_cache.dictionary()["dylibs"][1]["segments"][1]["vmAddr"] == "0xB000"
  77     assert kernel_cache.dictionary()["dylibs"][1]["segments"][2]["name"] == "__LINKEDIT"
  78     assert kernel_cache.dictionary()["dylibs"][1]["segments"][2]["vmAddr"] == "0xC000"
  79
  80     # Check the fixups
  81     kernel_cache.analyze("/auxkc-no-split-seg/aux.kc", ["-fixups", "-arch", "x86_64"])
  82     assert kernel_cache.dictionary()["fixups"] == ""
  83     assert len(kernel_cache.dictionary()["dylibs"]) == 2
  84     # bar.kext
  85     assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.bar"
  86     assert len(kernel_cache.dictionary()["dylibs"][0]["fixups"]) == 1
  87     assert kernel_cache.dictionary()["dylibs"][0]["fixups"]["0x5008"] == "kc(3) + 0x9000"
  88     # foo.kext
  89     assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.foo"
  90     assert len(kernel_cache.dictionary()["dylibs"][1]["fixups"]) == 1
  91     assert kernel_cache.dictionary()["dylibs"][1]["fixups"]["0x5008"] == "kc(3) + 0xB000"
  92
  93
  94 # [~]> xcrun -sdk macosx.internal cc -arch x86_64 -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 -Wl,-install_name,/usr/lib/swift/split.seg.v2.hack -Wl,-segprot,__HIB,r-x,r-x -Wl,-image_base,0x8000 -Wl,-segaddr,__HIB,0x4000
  95 # [~]> xcrun -sdk macosx.internal cc -arch x86_64 -Wl,-kext -mkernel -nostdlib foo.c -o extensions/foo.kext/foo
  96 # [~]> xcrun -sdk macosx.internal cc -arch x86_64 -Wl,-kext -mkernel -nostdlib bar.c -o extensions/bar.kext/bar
  97