2023-04-29 11:24:58 -07:00

33 lines
1.7 KiB
Python

#!/usr/bin/python2.7
import os
import KernelCollection
# Verify that an auxKC references the UUID of the base KC
def check(kernel_cache):
# First build a kernel collection
kernel_cache.buildKernelCollection("arm64", "/auxkc-uuid/main.kc", "/auxkc-uuid/main.kernel", "/auxkc-uuid/extensions", [], [])
kernel_cache.analyze("/auxkc-uuid/main.kc", ["-layout", "-arch", "arm64"])
# Check the kernel UUID
kernel_cache.analyze("/auxkc-uuid/main.kc", ["-uuid", "-arch", "arm64"])
kernelUUID = kernel_cache.dictionary()["uuid"]
assert kernelUUID != "00000000-0000-0000-0000-000000000000"
assert kernelUUID == kernel_cache.dictionary()["prelink-info-uuid"]
# Now build an aux cache using the baseline kernel collection
kernel_cache.buildAuxKernelCollection("arm64", "/auxkc-uuid/aux.kc", "/auxkc-uuid/main.kc", "", "/auxkc-uuid/extensions", ["com.apple.foo", "com.apple.bar"], [])
# Check the aux UUID
kernel_cache.analyze("/auxkc-uuid/aux.kc", ["-uuid", "-arch", "arm64"])
assert kernel_cache.dictionary()["uuid"] != "00000000-0000-0000-0000-000000000000"
assert kernel_cache.dictionary()["prelink-info-base-uuid"] == kernelUUID
# [~]> 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
# [~]> xcrun -sdk iphoneos.internal cc -arch arm64 -Wl,-kext -mkernel -nostdlib -Wl,-add_split_seg_info bar.c -o extensions/bar.kext/bar
# [~]> rm -r extensions/*.kext/*.ld