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--- dyld/dyld-1042.1/testing/kernel-cache-tests/auxkc-vtable-patching/test.py
+++ dyld/dyld-940/testing/kernel-cache-tests/auxkc-vtable-patching/test.py
@@ -1,15 +1,13 @@
-#!/usr/bin/python3
+#!/usr/bin/python2.7
import os
import KernelCollection
-from FixupHelpers import *
# This verifies that a kext can bind to another kext
# foo.kext exports foo and bar.kext uses it
# We put foo.kext in the base KC so that the patch slot in bar.kext has to know to use the correct fixup level in the fixup chain
def check(kernel_cache):
- enableLogging = False
kernel_cache.buildKernelCollection("x86_64", "/auxkc-vtable-patching/main.kc", "/auxkc-vtable-patching/main.kernel", "/auxkc-vtable-patching/extensions", ["com.apple.foo"], [])
kernel_cache.analyze("/auxkc-vtable-patching/main.kc", ["-layout", "-arch", "x86_64"])
@@ -22,25 +20,20 @@
# From foo, we want to know where the vtable is, and the foo() and fooUsed0() slots in that vtable
# Foo::foo()
- fooClassFooVMAddr = findGlobalSymbolVMAddr(kernel_cache, 1, "__ZN3Foo3fooEv")
- if enableLogging:
- print("fooClassFooVMAddr: " + fooClassFooVMAddr)
+ assert kernel_cache.dictionary()["dylibs"][1]["global-symbols"][6]["name"] == "__ZN3Foo3fooEv"
+ assert kernel_cache.dictionary()["dylibs"][1]["global-symbols"][6]["vmAddr"] == "0x16ED0"
# Foo::fooUsed0()
- fooClassFooUsed0VMAddr = findGlobalSymbolVMAddr(kernel_cache, 1, "__ZN3Foo8fooUsed0Ev")
- if enableLogging:
- print("fooClassFooUsed0VMAddr: " + fooClassFooUsed0VMAddr)
+ assert kernel_cache.dictionary()["dylibs"][1]["global-symbols"][7]["name"] == "__ZN3Foo8fooUsed0Ev"
+ assert kernel_cache.dictionary()["dylibs"][1]["global-symbols"][7]["vmAddr"] == "0x16EF0"
# Check the fixups
kernel_cache.analyze("/auxkc-vtable-patching/main.kc", ["-fixups", "-arch", "x86_64"])
# In vtable for Foo, we match the entry for Foo::foo() by looking for its value on the RHS of the fixup
- kernelFooFixupAddr = findFixupVMAddr(kernel_cache, "kc(0) + " + fooClassFooVMAddr)
- if enableLogging:
- print("kernelFooFixupAddr: " + kernelFooFixupAddr)
+ assert kernel_cache.dictionary()["fixups"]["0x1D150"] == "kc(0) + 0x16ED0"
# Then the following fixup should be to Foo::fooUsed0()
- kernelFooNextFixupAddr = offsetVMAddr(kernelFooFixupAddr, 8)
- assert kernel_cache.dictionary()["fixups"][kernelFooNextFixupAddr] == "kc(0) + " + fooClassFooUsed0VMAddr
+ assert kernel_cache.dictionary()["fixups"]["0x1D158"] == "kc(0) + 0x16EF0"
# -----------------------------------------------------------
@@ -57,23 +50,17 @@
# From bar, find the vtable and its override of foo()
# Bar::foo()
- barFooVMAddr = findGlobalSymbolVMAddr(kernel_cache, 0, "__ZN3Bar3fooEv")
- if enableLogging:
- print("barFooVMAddr: " + barFooVMAddr)
+ assert kernel_cache.dictionary()["dylibs"][0]["global-symbols"][3]["name"] == "__ZN3Bar3fooEv"
+ assert kernel_cache.dictionary()["dylibs"][0]["global-symbols"][3]["vmAddr"] == "0xCF10"
# Check the fixups
kernel_cache.analyze("/auxkc-vtable-patching/aux.kc", ["-fixups", "-arch", "x86_64"])
# Now in bar, again match the entry for its Bar::foo() symbol
- fixupAddr = findAuxFixupVMAddr(kernel_cache, 0, "kc(3) + " + barFooVMAddr)
- if enableLogging:
- print("fixupAddr: " + fixupAddr)
-
+ assert kernel_cache.dictionary()["dylibs"][0]["fixups"]["0x10150"] == "kc(3) + 0xCF10"
# And if the patching was correct, then following entry should be to Foo::fooUsed0()
- nextFixupAddr = offsetVMAddr(fixupAddr, 8)
- offsetOfFooUsed0 = offsetVMAddr(fooClassFooUsed0VMAddr, -16384)
- assert kernel_cache.dictionary()["dylibs"][0]["fixups"][nextFixupAddr] == "kc(0) + " + offsetOfFooUsed0
+ assert kernel_cache.dictionary()["dylibs"][0]["fixups"]["0x10158"] == "kc(0) + 0x12EF0"
# [~]> xcrun -sdk macosx.internal cc -arch x86_64 -Wl,-static -mkernel -nostdlib -Wl,-e,__start -Wl,-pie main.cpp -Wl,-pagezero_size,0x0 -o main.kernel -Wl,-image_base,0x10000 -Wl,-segaddr,__HIB,0x4000 -Wl,-add_split_seg_info -Wl,-install_name,/usr/lib/swift/split.seg.v2.hack -iwithsysroot /System/Library/Frameworks/Kernel.framework/Headers -Wl,-sectcreate,__LINKINFO,__symbolsets,SymbolSets.plist -Wl,-segprot,__LINKINFO,r--,r--