Proteas · October 9, 2017 02:46
diff --git a/xnu-4570.1.46-arm64-steps.txt b/xnu-4570.1.46-arm64-steps.txt
 Following are my steps to build the ARM64 version of xnu-4570.1.46, hope this is helpfull for saving time.
 1. Use Xcode 9.0
 2. Preparation is same as macOS, and there is a guide: https://0xcc.re/building-xnu-kernel-macosx-sierrra-10-12-x/
 3. There is an ARM64 version libfirehose: https://github.com/Proteas/install_firehose_lib
 4. Copy and edit the ARM64 config(CFLAGS, LDFLAGS) from darwin-on-arm/xnu to your target project
 5. Example CFLAGS: -Darm64 -DARM64 -D__arm64__ -D__ARM64__ -DLP64 -DCONFIG_EMBEDDED -mkernel -DARM64_BOARD_CONFIG_T8011=1
 6. Fix compiling stage errors by directly importing the missing headers or editing the code
 7. Fix linking stage errors by implementing place holder funcitons for: chudxnu_cpu_alloc, etc 
 8. If missing symbol __divti3 in linking stage, get the runtime from llvm.
	Following are my steps to build the ARM64 version of xnu-4570.1.46, hope this is helpfull for saving time.
	1. Use Xcode 9.0
	2. Preparation is same as macOS, and there is a guide: https://0xcc.re/building-xnu-kernel-macosx-sierrra-10-12-x/
	3. There is an ARM64 version libfirehose: https://github.com/Proteas/install_firehose_lib
	4. Copy and edit the ARM64 config(CFLAGS, LDFLAGS) from darwin-on-arm/xnu to your target project
	5. Example CFLAGS: -Darm64 -DARM64 -D__arm64__ -D__ARM64__ -DLP64 -DCONFIG_EMBEDDED -mkernel -DARM64_BOARD_CONFIG_T8011=1
	6. Fix compiling stage errors by directly importing the missing headers or editing the code
	7. Fix linking stage errors by implementing place holder funcitons for: chudxnu_cpu_alloc, etc
	8. If missing symbol __divti3 in linking stage, get the runtime from llvm.