X-Git-Url: https://git.saurik.com/apple/dyld.git/blobdiff_plain/d3f1e533acc7f70659b8bde9b6c040974f05e03b..bc3b7c8cda49ed8598284a489c0bb9694c67c6a4:/testing/kernel-cache-tests/kext-vtable-patching-error-small-vtable/test.py

diff --git a/testing/kernel-cache-tests/kext-vtable-patching-error-small-vtable/test.py b/testing/kernel-cache-tests/kext-vtable-patching-error-small-vtable/test.py
new file mode 100644
index 0000000..572a025
--- /dev/null
+++ b/testing/kernel-cache-tests/kext-vtable-patching-error-small-vtable/test.py
@@ -0,0 +1,20 @@
+#!/usr/bin/python2.7
+
+import os
+import KernelCollection
+
+# Try to patch a vtable, but the parent vtable is too small
+
+def check(kernel_cache):
+    kernel_cache.buildKernelCollection("x86_64", "/kext-vtable-patching-error-small-vtable/main.kc", "/kext-vtable-patching-error-small-vtable/main.kernel", "/kext-vtable-patching-error-small-vtable/extensions", ["com.apple.foo", "com.apple.bar"], ["-json-errors"])
+
+    assert len(kernel_cache.dictionary()) == 1
+    assert kernel_cache.dictionary()[0]["id"] == "com.apple.bar"
+    assert len(kernel_cache.dictionary()[0]["errors"]) == 1
+    assert kernel_cache.dictionary()[0]["errors"][0] == "Malformed vtable.  Super class '__ZTV3Foo' has 40 entries vs subclass '__ZTV3Bar' with 37 entries"
+
+# [~]> xcrun -sdk macosx.internal cc -arch x86_64 -Wl,-static -mkernel -nostdlib -Wl,-e,__start -Wl,-pie main.cpp -Wl,-pagezero_size,0x0 -o main.kernel -Wl,-image_base,0x10000 -Wl,-segaddr,__HIB,0x4000 -Wl,-add_split_seg_info -Wl,-install_name,/usr/lib/swift/split.seg.v2.hack -iwithsysroot /System/Library/Frameworks/Kernel.framework/Headers -Wl,-sectcreate,__LINKINFO,__symbolsets,SymbolSets.plist -Wl,-segprot,__LINKINFO,r--,r--
+# [~]> xcrun -sdk macosx.internal cc -arch x86_64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info -Wl,-no_data_const foo.cpp -o extensions/foo.kext/foo -iwithsysroot /System/Library/Frameworks/Kernel.framework/Headers -DFOO_USED=1
+# [~]> xcrun -sdk macosx.internal cc -arch x86_64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info -Wl,-no_data_const bar.cpp -o extensions/bar.kext/bar -iwithsysroot /System/Library/Frameworks/Kernel.framework/Headers
+# [~]> rm -r extensions/*.kext/*.ld
+