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

diff --git a/testing/kernel-cache-tests/hello-world-pageablekc/test.py b/testing/kernel-cache-tests/hello-world-pageablekc/test.py
new file mode 100644
index 0000000..e585454
--- /dev/null
+++ b/testing/kernel-cache-tests/hello-world-pageablekc/test.py
@@ -0,0 +1,106 @@
+#!/usr/bin/python2.7
+
+import os
+import KernelCollection
+
+# Verify that pageableKC has nothing packed on the same page
+
+def check(kernel_cache):
+    # First build a kernel collection
+    kernel_cache.buildKernelCollection("arm64", "/hello-world-pageablekc/main.kc", "/hello-world-pageablekc/main.kernel", "/hello-world-pageablekc/extensions", [], [])
+    kernel_cache.analyze("/hello-world-pageablekc/main.kc", ["-layout", "-arch", "arm64"])
+
+    assert len(kernel_cache.dictionary()["cache-segments"]) == 6
+    assert kernel_cache.dictionary()["cache-segments"][0]["name"] == "__TEXT"
+    assert kernel_cache.dictionary()["cache-segments"][0]["vmAddr"] == "0x0"
+    assert kernel_cache.dictionary()["cache-segments"][1]["name"] == "__PRELINK_TEXT"
+    assert kernel_cache.dictionary()["cache-segments"][1]["vmAddr"] == "0x4000"
+    assert kernel_cache.dictionary()["cache-segments"][2]["name"] == "__TEXT_EXEC"
+    assert kernel_cache.dictionary()["cache-segments"][2]["vmAddr"] == "0x4000"
+    assert kernel_cache.dictionary()["cache-segments"][3]["name"] == "__PRELINK_INFO"
+    assert kernel_cache.dictionary()["cache-segments"][3]["vmAddr"] == "0xC000"
+    assert kernel_cache.dictionary()["cache-segments"][4]["name"] == "__DATA"
+    assert kernel_cache.dictionary()["cache-segments"][4]["vmAddr"] == "0x10000"
+    assert kernel_cache.dictionary()["cache-segments"][5]["name"] == "__LINKEDIT"
+    assert kernel_cache.dictionary()["cache-segments"][5]["vmAddr"] == "0x14000"
+
+    assert len(kernel_cache.dictionary()["dylibs"]) == 1
+    # main.kernel
+    assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.kernel"
+    assert len(kernel_cache.dictionary()["dylibs"][0]["segments"]) == 4
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["name"] == "__TEXT"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["vmAddr"] == "0x4000"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["name"] == "__DATA"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["vmAddr"] == "0x10000"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["name"] == "__TEXT_EXEC"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["vmAddr"] == "0x8000"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["name"] == "__LINKEDIT"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["vmAddr"] == "0x14000"
+
+    # Now build an pageable cache using the baseline kernel collection
+    kernel_cache.buildPageableKernelCollection("arm64", "/hello-world-pageablekc/pageable.kc", "/hello-world-pageablekc/main.kc", "/hello-world-pageablekc/extensions", ["com.apple.foo", "com.apple.bar"], [])
+    kernel_cache.analyze("/hello-world-pageablekc/pageable.kc", ["-layout", "-arch", "arm64"])
+
+    assert len(kernel_cache.dictionary()["cache-segments"]) == 6
+    assert kernel_cache.dictionary()["cache-segments"][0]["name"] == "__TEXT"
+    assert kernel_cache.dictionary()["cache-segments"][0]["vmAddr"] == "0x0"
+    assert kernel_cache.dictionary()["cache-segments"][1]["name"] == "__PRELINK_TEXT"
+    assert kernel_cache.dictionary()["cache-segments"][1]["vmAddr"] == "0x4000"
+    assert kernel_cache.dictionary()["cache-segments"][2]["name"] == "__TEXT_EXEC"
+    assert kernel_cache.dictionary()["cache-segments"][2]["vmAddr"] == "0xC000"
+    assert kernel_cache.dictionary()["cache-segments"][3]["name"] == "__PRELINK_INFO"
+    assert kernel_cache.dictionary()["cache-segments"][3]["vmAddr"] == "0x14000"
+    assert kernel_cache.dictionary()["cache-segments"][4]["name"] == "__DATA"
+    assert kernel_cache.dictionary()["cache-segments"][4]["vmAddr"] == "0x18000"
+    assert kernel_cache.dictionary()["cache-segments"][5]["name"] == "__LINKEDIT"
+    assert kernel_cache.dictionary()["cache-segments"][5]["vmAddr"] == "0x20000"
+
+    assert len(kernel_cache.dictionary()["dylibs"]) == 2
+    # bar.kext
+    assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.bar"
+    assert len(kernel_cache.dictionary()["dylibs"][0]["segments"]) == 4
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["name"] == "__TEXT"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][0]["vmAddr"] == "0x4000"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["name"] == "__TEXT_EXEC"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][1]["vmAddr"] == "0xC000"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["name"] == "__DATA"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][2]["vmAddr"] == "0x18000"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["name"] == "__LINKEDIT"
+    assert kernel_cache.dictionary()["dylibs"][0]["segments"][3]["vmAddr"] == "0x20000"
+    # foo.kext
+    assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.foo"
+    assert len(kernel_cache.dictionary()["dylibs"][1]["segments"]) == 4
+    assert kernel_cache.dictionary()["dylibs"][1]["segments"][0]["name"] == "__TEXT"
+    assert kernel_cache.dictionary()["dylibs"][1]["segments"][0]["vmAddr"] == "0x8000"
+    assert kernel_cache.dictionary()["dylibs"][1]["segments"][1]["name"] == "__TEXT_EXEC"
+    assert kernel_cache.dictionary()["dylibs"][1]["segments"][1]["vmAddr"] == "0x10000"
+    assert kernel_cache.dictionary()["dylibs"][1]["segments"][2]["name"] == "__DATA"
+    assert kernel_cache.dictionary()["dylibs"][1]["segments"][2]["vmAddr"] == "0x1C000"
+    assert kernel_cache.dictionary()["dylibs"][1]["segments"][3]["name"] == "__LINKEDIT"
+    assert kernel_cache.dictionary()["dylibs"][1]["segments"][3]["vmAddr"] == "0x20000"
+
+    # Check the fixups
+    kernel_cache.analyze("/hello-world-pageablekc/pageable.kc", ["-fixups", "-arch", "arm64"])
+    assert kernel_cache.dictionary()["fixups"] == ""
+    assert len(kernel_cache.dictionary()["dylibs"]) == 2
+
+    # bar.kext
+    assert kernel_cache.dictionary()["dylibs"][0]["name"] == "com.apple.bar"
+    assert len(kernel_cache.dictionary()["dylibs"][0]["fixups"]) == 2
+    # extern int foo()
+    assert kernel_cache.dictionary()["dylibs"][0]["fixups"]["0x14000"] == "kc(1) + 0x10000"
+    # int* p = &x;
+    assert kernel_cache.dictionary()["dylibs"][0]["fixups"]["0x14008"] == "kc(1) + 0x18010"
+
+    # foo.kext
+    assert kernel_cache.dictionary()["dylibs"][1]["name"] == "com.apple.foo"
+    assert len(kernel_cache.dictionary()["dylibs"][1]["fixups"]) == 1
+    # int* p = &x;
+    assert kernel_cache.dictionary()["dylibs"][1]["fixups"]["0x14000"] == "kc(1) + 0x1C008"
+
+
+# [~]> 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
+