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59 lines
2.5 KiB
Markdown
59 lines
2.5 KiB
Markdown
# Setting up a development environment on macOS
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# Prerequisites
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This installation guide assumes that you have [Homebrew](https://brew.sh) and Xcode installed. You need to open Xcode at least once for it to install the required tools.
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Before you build, you must set your command line tools to Xcode's tools instead of the ones installed via Homebrew:
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```console
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sudo xcode-select --switch /Applications/Xcode.app
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```
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Make sure you also have all the following dependencies installed:
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```console
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# core
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brew install coreutils e2fsprogs qemu bash imagemagick ninja cmake ccache rsync zstd
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# (option 1) fuse + ext2
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brew install m4 autoconf automake libtool
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brew install --cask macfuse
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Toolchain/BuildFuseExt2.sh
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# (option 2) genext2fs
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brew install genext2fs
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# for kernel debugging, on Apple Silicon
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brew install x86_64-elf-gdb
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```
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If you have Xcode version 14.2 or older, also install a newer host compiler from homebrew. Xcode 14.3 is known to work.
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```console
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brew install llvm@18
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# OR
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brew install gcc@13
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```
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# Notes
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You can use both Intel and Apple Silicon Macs to run the x86-64 version of SerenityOS. You do not
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need to install Rosetta for this. An emulator is used when running on an Apple Silicon, so Serenity
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will be slower compared to running natively with hardware-assisted virtualization on an Intel machine.
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If you're building on M1 Mac and have Homebrew installed in both Rosetta and native environments,
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you have to make sure that required packages are installed only in one of the environments. Otherwise,
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these installations can conflict during the build process, which is manifested in hard to diagnose issues.
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Building on M1 natively without Rosetta is recommended, as the build process should be faster without Rosetta
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overhead.
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Installing macfuse for the first time requires enabling its system extension in System Preferences and then restarting your machine. The output from installing macfuse with brew says this, but it's easy to miss.
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It's important to make sure that Xcode is not only installed but also accordingly updated, otherwise CMake will run into incompatibilities with GCC.
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Homebrew is known to ship bleeding edge CMake versions, but building CMake from source with homebrew
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gcc or llvm may not work. If homebrew does not offer cmake 3.25.x+ on your platform, it may be necessary
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to manually run Toolchain/BuildCMake.sh with Apple clang from Xcode as the first compiler in your $PATH.
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If you want to debug the x86-64 kernel on an Apple Silicon machine, you can install the `x86_64-elf-gdb`
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package to get a native build of GDB that can cross-debug x86-64 code.
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