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

diff --git a/testing/kernel-cache-tests/pageablekc-bind-to-basekc/test.py b/testing/kernel-cache-tests/pageablekc-bind-to-basekc/test.py
new file mode 100644
index 0000000..baf91e5
--- /dev/null
+++ b/testing/kernel-cache-tests/pageablekc-bind-to-basekc/test.py
@@ -0,0 +1,32 @@
+#!/usr/bin/python2.7
+
+import os
+import KernelCollection
+
+# This verifies that a kext can bind to another kext
+# foo.kext exports foo and bar.kext uses it
+
+def check(kernel_cache):
+    kernel_cache.buildKernelCollection("arm64", "/pageablekc-bind-to-basekc/main.kc", "/pageablekc-bind-to-basekc/main.kernel", "/pageablekc-bind-to-basekc/extensions", ["com.apple.foo"], [])
+    kernel_cache.analyze("/pageablekc-bind-to-basekc/main.kc", ["-symbols", "-arch", "arm64"])
+
+    assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.foo"
+    assert kernel_cache.dictionary()["dylibs"][1]["global-symbols"][0]["name"] == "_foo"
+    assert kernel_cache.dictionary()["dylibs"][1]["global-symbols"][0]["vmAddr"] == "0x10000"
+
+    # Now build an pageable cache using the baseline kernel collection
+    kernel_cache.buildPageableKernelCollection("arm64", "/pageablekc-bind-to-basekc/pageable.kc", "/pageablekc-bind-to-basekc/main.kc", "/pageablekc-bind-to-basekc/extensions", ["com.apple.bar"], [])
+    kernel_cache.analyze("/pageablekc-bind-to-basekc/pageable.kc", ["-fixups", "-arch", "arm64"])
+
+    # bar.kext
+    assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.bar"
+    assert len(kernel_cache.dictionary()["dylibs"][0]["fixups"]) == 1
+    # extern int foo()
+    assert kernel_cache.dictionary()["dylibs"][0]["fixups"]["0xC000"] == "kc(0) + 0x10000"
+
+
+# [~]> 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 -Wl,-no_data_const foo.c -o extensions/foo.kext/foo
+# [~]> xcrun -sdk iphoneos.internal cc -arch arm64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info -Wl,-no_data_const bar.c -o extensions/bar.kext/bar
+# [~]> rm -r extensions/*.kext/*.ld
+