testing/kernel-cache-tests/fixups-arm64e/test.py

   1 #!/usr/bin/python2.7
   2
   3 import os
   4 import KernelCollection
   5
   6
   7 def check(kernel_cache):
   8     kernel_cache.buildKernelCollection("arm64e", "/fixups-arm64e/main.kc", "/fixups-arm64e/main.kernel", "/fixups-arm64e/extensions", ["com.apple.foo", "com.apple.bar"], [])
   9     kernel_cache.analyze("/fixups-arm64e/main.kc", ["-layout", "-arch", "arm64e"])
  10
  11     assert len(kernel_cache.dictionary()["cache-segments"]) == 6
  12     assert kernel_cache.dictionary()["cache-segments"][0]["name"] == "__TEXT"
  13     assert kernel_cache.dictionary()["cache-segments"][0]["vmAddr"] == "0xFFFFFFF007004000"
  14     assert kernel_cache.dictionary()["cache-segments"][1]["name"] == "__PRELINK_TEXT"
  15     assert kernel_cache.dictionary()["cache-segments"][1]["vmAddr"] == "0xFFFFFFF007008000"
  16     assert kernel_cache.dictionary()["cache-segments"][2]["name"] == "__TEXT_EXEC"
  17     assert kernel_cache.dictionary()["cache-segments"][2]["vmAddr"] == "0xFFFFFFF007010000"
  18     assert kernel_cache.dictionary()["cache-segments"][3]["name"] == "__PRELINK_INFO"
  19     assert kernel_cache.dictionary()["cache-segments"][3]["vmAddr"] == "0xFFFFFFF00701C000"
  20     assert kernel_cache.dictionary()["cache-segments"][4]["name"] == "__DATA"
  21     assert kernel_cache.dictionary()["cache-segments"][4]["vmAddr"] == "0xFFFFFFF007020000"
  22     assert kernel_cache.dictionary()["cache-segments"][5]["name"] == "__LINKEDIT"
  23     assert kernel_cache.dictionary()["cache-segments"][5]["vmAddr"] == "0xFFFFFFF007030000"
  24
  25     assert len(kernel_cache.dictionary()["dylibs"]) == 3
  26     # main.kernel
  27     assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel"
  28     assert len(kernel_cache.dictionary()["dylibs"][0]["segments"]) == 4
  29     assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["name"] == "__TEXT"
  30     assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["vmAddr"] == "0xFFFFFFF007010000"
  31     assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["name"] == "__DATA"
  32     assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["vmAddr"] == "0xFFFFFFF007020000"
  33     assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["name"] == "__TEXT_EXEC"
  34     assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["vmAddr"] == "0xFFFFFFF007014000"
  35     assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["name"] == "__LINKEDIT"
  36     assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["vmAddr"] == "0xFFFFFFF007030000"
  37     # bar.kext
  38     assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.bar"
  39     assert len(kernel_cache.dictionary()["dylibs"][1]["segments"]) == 4
  40     assert kernel_cache.dictionary()["dylibs"][1]["segments"][0]["name"] == "__TEXT"
  41     assert kernel_cache.dictionary()["dylibs"][1]["segments"][0]["vmAddr"] == "0xFFFFFFF007008000"
  42     assert kernel_cache.dictionary()["dylibs"][1]["segments"][1]["name"] == "__TEXT_EXEC"
  43     assert kernel_cache.dictionary()["dylibs"][1]["segments"][1]["vmAddr"] == "0xFFFFFFF007018000"
  44     assert kernel_cache.dictionary()["dylibs"][1]["segments"][2]["name"] == "__DATA"
  45     assert kernel_cache.dictionary()["dylibs"][1]["segments"][2]["vmAddr"] == "0xFFFFFFF00702C000"
  46     assert kernel_cache.dictionary()["dylibs"][1]["segments"][3]["name"] == "__LINKEDIT"
  47     assert kernel_cache.dictionary()["dylibs"][1]["segments"][3]["vmAddr"] == "0xFFFFFFF007030000"
  48     # foo.kext
  49     assert kernel_cache.dictionary()["dylibs"][2]["name"] == "com.apple.foo"
  50     assert len(kernel_cache.dictionary()["dylibs"][2]["segments"]) == 4
  51     assert kernel_cache.dictionary()["dylibs"][2]["segments"][0]["name"] == "__TEXT"
  52     assert kernel_cache.dictionary()["dylibs"][2]["segments"][0]["vmAddr"] == "0xFFFFFFF00700C000"
  53     assert kernel_cache.dictionary()["dylibs"][2]["segments"][1]["name"] == "__TEXT_EXEC"
  54     assert kernel_cache.dictionary()["dylibs"][2]["segments"][1]["vmAddr"] == "0xFFFFFFF007018040"
  55     assert kernel_cache.dictionary()["dylibs"][2]["segments"][2]["name"] == "__DATA"
  56     assert kernel_cache.dictionary()["dylibs"][2]["segments"][2]["vmAddr"] == "0xFFFFFFF00702C010"
  57     assert kernel_cache.dictionary()["dylibs"][2]["segments"][3]["name"] == "__LINKEDIT"
  58     assert kernel_cache.dictionary()["dylibs"][2]["segments"][3]["vmAddr"] == "0xFFFFFFF007030000"
  59
  60     # Check the fixups
  61     kernel_cache.analyze("/fixups-arm64e/main.kc", ["-fixups", "-arch", "arm64e"])
  62     assert len(kernel_cache.dictionary()["fixups"]) == 11
  63     # main.kernel: S s = { &func, &func, &g, &func, &g };
  64     assert kernel_cache.dictionary()["fixups"]["0x1C000"] == "kc(0) + 0xFFFFFFF007014000 auth(IA !addr 0)"
  65     assert kernel_cache.dictionary()["fixups"]["0x1C008"] == "kc(0) + 0xFFFFFFF007014000 auth(IA !addr 0)"
  66     assert kernel_cache.dictionary()["fixups"]["0x1C010"] == "kc(0) + 0xFFFFFFF00702802C"
  67     assert kernel_cache.dictionary()["fixups"]["0x20000"] == "kc(0) + 0xFFFFFFF007014000 auth(IA !addr 0)"
  68     assert kernel_cache.dictionary()["fixups"]["0x20008"] == "kc(0) + 0xFFFFFFF00702802C"
  69     # main.kernel: PackedS ps = { 0, &func, &func, 0, &g, 0, &g };
  70     assert kernel_cache.dictionary()["fixups"]["0x24004"] == "kc(0) + 0xFFFFFFF007014000 auth(IA !addr 0)"
  71     assert kernel_cache.dictionary()["fixups"]["0x2400C"] == "kc(0) + 0xFFFFFFF007014000 auth(IA !addr 0)"
  72     assert kernel_cache.dictionary()["fixups"]["0x24018"] == "kc(0) + 0xFFFFFFF00702802C"
  73     assert kernel_cache.dictionary()["fixups"]["0x24024"] == "kc(0) + 0xFFFFFFF00702802C"
  74     # bar.kext: __typeof(&bar) barPtr = &bar;
  75     assert kernel_cache.dictionary()["fixups"]["0x28000"] == "kc(0) + 0xFFFFFFF007018000 auth(IA !addr 0)"
  76     # foo.kext: int* gPtr = &g;
  77     assert kernel_cache.dictionary()["fixups"]["0x28010"] == "kc(0) + 0xFFFFFFF00702C018"
  78     assert len(kernel_cache.dictionary()["dylibs"]) == 3
  79     assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel"
  80     assert kernel_cache.dictionary()["dylibs"][0]["fixups"] == "none"
  81     assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.bar"
  82     assert kernel_cache.dictionary()["dylibs"][1]["fixups"] == "none"
  83     assert kernel_cache.dictionary()["dylibs"][2]["name"] == "com.apple.foo"
  84     assert kernel_cache.dictionary()["dylibs"][2]["fixups"] == "none"
  85
  86 # [~]> xcrun -sdk iphoneos.internal cc -arch arm64e -std=c++11 -Wl,-static -mkernel -Wl,-fixup_chains -Wl,-kernel -nostdlib -Wl,-add_split_seg_info -Wl,-e,__start -Wl,-pie main.cpp -Wl,-pagezero_size,0x0 -Wl,-rename_section,__TEXT,__text,__TEXT_EXEC,__text -o main.kernel  -Wl,-image_base,0xfffffff007004000 -Wl,-install_name,/usr/lib/swift/split.seg.v2.hack
  87 # [~]> xcrun -sdk iphoneos.internal cc -arch arm64e -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info -Wl,-fixup_chains foo.c -o extensions/foo.kext/foo
  88 # [~]> xcrun -sdk iphoneos.internal cc -arch arm64e -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info -Wl,-fixup_chains bar.c -o extensions/bar.kext/bar
  89 # [~]> rm -r extensions/*.kext/*.ld
  90