steps to build arm64 version of xnu-4570.1.46
| 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. |
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