dyld-832.7.1.tar.gz

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

diff --git a/testing/kernel-cache-tests/auxkc-kext-bind-to-kernel/test.py b/testing/kernel-cache-tests/auxkc-kext-bind-to-kernel/test.py
new file mode 100644 (file)
index 0000000..85219ad
--- /dev/null
+++ b/testing/kernel-cache-tests/auxkc-kext-bind-to-kernel/test.py
@@ -0,0 +1,30 @@
+#!/usr/bin/python2.7
+
+import os
+import KernelCollection
+
+# This verifies that we use the symbol set when resolving symbols from aux KC to the kernel
+
+def check(kernel_cache):
+    kernel_cache.buildKernelCollection("arm64", "/auxkc-kext-bind-to-kernel/main.kc", "/auxkc-kext-bind-to-kernel/main.kernel", "/auxkc-kext-bind-to-kernel/extensions", ["com.apple.bar"], [])
+    kernel_cache.analyze("/auxkc-kext-bind-to-kernel/main.kc", ["-layout", "-arch", "arm64"])
+
+    assert len(kernel_cache.dictionary()["dylibs"]) == 1
+    assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel"
+
+    # Now build an aux cache using the baseline kernel collection
+    kernel_cache.buildAuxKernelCollection("arm64", "/auxkc-kext-bind-to-kernel/aux.kc", "/auxkc-kext-bind-to-kernel/main.kc", "", "/auxkc-kext-bind-to-kernel/extensions", ["com.apple.foo"], [])
+    kernel_cache.analyze("/auxkc-kext-bind-to-kernel/aux.kc", ["-layout", "-arch", "arm64"])
+
+    # Check the fixups
+    kernel_cache.analyze("/auxkc-kext-bind-to-kernel/aux.kc", ["-fixups", "-arch", "arm64"])
+    assert len(kernel_cache.dictionary()["fixups"]) == 1
+    assert kernel_cache.dictionary()["fixups"]["0x4000"] == "kc(0) + 0x8000"
+    assert len(kernel_cache.dictionary()["dylibs"]) == 1
+    assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.foo"
+    assert kernel_cache.dictionary()["dylibs"][0]["fixups"] == "none"
+
+# [~]> xcrun -sdk iphoneos.internal cc -arch arm64 -Wl,-static -mkernel -nostdlib -Wl,-add_split_seg_info -Wl,-no_data_const -Wl,-rename_section,__TEXT,__text,__TEXT_EXEC,__text -Wl,-e,__start -Wl,-pagezero_size,0x0 -Wl,-pie main.c -o main.kernel -Wl,-sectcreate,__LINKINFO,__symbolsets,SymbolSets.plist -Wl,-segprot,__LINKINFO,r--,r--
+# [~]> 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
+# [~]> rm -r extensions/foo.kext/*.ld
+