X-Git-Url: https://git.saurik.com/apple/dyld.git/blobdiff_plain/d3f1e533acc7f70659b8bde9b6c040974f05e03b..bc3b7c8cda49ed8598284a489c0bb9694c67c6a4:/testing/kernel-cache-tests/pageablekc-uuid/test.py

diff --git a/testing/kernel-cache-tests/pageablekc-uuid/test.py b/testing/kernel-cache-tests/pageablekc-uuid/test.py
new file mode 100644
index 0000000..8322d15
--- /dev/null
+++ b/testing/kernel-cache-tests/pageablekc-uuid/test.py
@@ -0,0 +1,32 @@
+#!/usr/bin/python2.7
+
+import os
+import KernelCollection
+
+# Verify that an pageableKC references the UUID of the base KC
+
+def check(kernel_cache):
+    # First build a kernel collection
+    kernel_cache.buildKernelCollection("arm64", "/pageablekc-uuid/main.kc", "/pageablekc-uuid/main.kernel", "/pageablekc-uuid/extensions", [], [])
+    kernel_cache.analyze("/pageablekc-uuid/main.kc", ["-layout", "-arch", "arm64"])
+
+    # Check the kernel UUID
+    kernel_cache.analyze("/pageablekc-uuid/main.kc", ["-uuid", "-arch", "arm64"])
+    kernelUUID = kernel_cache.dictionary()["uuid"]
+    assert kernelUUID != "00000000-0000-0000-0000-000000000000"
+    assert kernelUUID == kernel_cache.dictionary()["prelink-info-uuid"]
+
+    # Now build an pageable cache using the baseline kernel collection
+    kernel_cache.buildPageableKernelCollection("arm64", "/pageablekc-uuid/pageable.kc", "/pageablekc-uuid/main.kc", "/pageablekc-uuid/extensions", ["com.apple.foo", "com.apple.bar"], [])
+
+    # Check the pageable UUID
+    kernel_cache.analyze("/pageablekc-uuid/pageable.kc", ["-uuid", "-arch", "arm64"])
+    assert kernel_cache.dictionary()["uuid"] != "00000000-0000-0000-0000-000000000000"
+    assert kernel_cache.dictionary()["prelink-info-base-uuid"] == kernelUUID
+
+
+# [~]> 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
+# [~]> xcrun -sdk iphoneos.internal cc -arch arm64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info foo.c -o extensions/foo.kext/foo
+# [~]> xcrun -sdk iphoneos.internal cc -arch arm64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info bar.c -o extensions/bar.kext/bar
+# [~]> rm -r extensions/*.kext/*.ld
+