dyld-832.7.1.tar.gz

[apple/dyld.git] / testing / kernel-cache-tests / auxkc-bind-to-pageablekc / test.py

diff --git a/testing/kernel-cache-tests/auxkc-bind-to-pageablekc/test.py b/testing/kernel-cache-tests/auxkc-bind-to-pageablekc/test.py
new file mode 100644 (file)
index 0000000..d5c61e3
--- /dev/null
+++ b/testing/kernel-cache-tests/auxkc-bind-to-pageablekc/test.py
@@ -0,0 +1,35 @@
+#!/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", "/auxkc-bind-to-pageablekc/main.kc", "/auxkc-bind-to-pageablekc/main.kernel", "", [], [])
+    kernel_cache.analyze("/auxkc-bind-to-pageablekc/main.kc", ["-layout", "-arch", "arm64"])
+
+    # Now build an pageable cache using the baseline kernel collection
+    kernel_cache.buildPageableKernelCollection("arm64", "/auxkc-bind-to-pageablekc/pageable.kc", "/auxkc-bind-to-pageablekc/main.kc", "/auxkc-bind-to-pageablekc/extensions", ["com.apple.foo"], [])
+    kernel_cache.analyze("/auxkc-bind-to-pageablekc/pageable.kc", ["-symbols", "-arch", "arm64"])
+
+    assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.foo"
+    assert kernel_cache.dictionary()["dylibs"][0]["global-symbols"][0]["name"] == "_foo"
+    assert kernel_cache.dictionary()["dylibs"][0]["global-symbols"][0]["vmAddr"] == "0x8000"
+
+    # Now build an aux cache using the baseline and pageable kernel collections
+    kernel_cache.buildAuxKernelCollection("arm64", "/auxkc-bind-to-pageablekc/aux.kc", "/auxkc-bind-to-pageablekc/main.kc", "/auxkc-bind-to-pageablekc/pageable.kc", "/auxkc-bind-to-pageablekc/extensions", ["com.apple.bar"], [])
+    kernel_cache.analyze("/auxkc-bind-to-pageablekc/aux.kc", ["-fixups", "-arch", "arm64"])
+
+    # bar.kext
+    assert len(kernel_cache.dictionary()["fixups"]) == 1
+    # extern int foo()
+    assert kernel_cache.dictionary()["fixups"]["0x4000"] == "kc(1) + 0x8000"
+
+
+# [~]> 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
+