dyld-832.7.1.tar.gz

[apple/dyld.git] / testing / kernel-cache-tests / kext-weak-bind-chained / test.py

diff --git a/testing/kernel-cache-tests/kext-weak-bind-chained/test.py b/testing/kernel-cache-tests/kext-weak-bind-chained/test.py
new file mode 100644 (file)
index 0000000..90b5c57
--- /dev/null
+++ b/testing/kernel-cache-tests/kext-weak-bind-chained/test.py
@@ -0,0 +1,37 @@
+#!/usr/bin/python2.7
+
+import os
+import KernelCollection
+
+# This verifies that weak binds point to the same symbol
+
+# FIXME: This should be re-enabled once we know how to handle classic relocs combined with split seg v2.
+
+def check(kernel_cache):
+    kernel_cache.buildKernelCollection("arm64", "/kext-weak-bind-chained/main.kc", "/kext-weak-bind-chained/main.kernel", "/kext-weak-bind-chained/extensions", ["com.apple.foo", "com.apple.bar"], [])
+    kernel_cache.analyze("/kext-weak-bind-chained/main.kc", ["-layout", "-arch", "arm64"])
+
+    assert len(kernel_cache.dictionary()["dylibs"]) == 3
+    assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel"
+    assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.bar"
+    assert kernel_cache.dictionary()["dylibs"][2]["name"] == "com.apple.foo"
+
+    # Check the fixups
+    kernel_cache.analyze("/kext-weak-bind-chained/main.kc", ["-fixups", "-arch", "arm64"])
+    assert len(kernel_cache.dictionary()["fixups"]) == 2
+    assert kernel_cache.dictionary()["fixups"]["0x1C000"] == "kc(0) + 0x1C018"
+    assert kernel_cache.dictionary()["fixups"]["0x1C010"] == "kc(0) + 0x1C018"
+    assert len(kernel_cache.dictionary()["dylibs"]) == 3
+    assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel"
+    assert kernel_cache.dictionary()["dylibs"][0]["fixups"] == "none"
+    assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.bar"
+    assert kernel_cache.dictionary()["dylibs"][1]["fixups"] == "none"
+    assert kernel_cache.dictionary()["dylibs"][2]["name"] == "com.apple.foo"
+    assert kernel_cache.dictionary()["dylibs"][2]["fixups"] == "none"
+
+
+# [~]> 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 -Wl,-fixup_chains
+# [~]> xcrun -sdk iphoneos.internal cc -arch arm64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info bar.c -o extensions/bar.kext/bar -Wl,-fixup_chains
+# [~]> rm -r extensions/*.kext/*.ld
+