QEMU on OS X (macOS) hosts
While QEMU's main host platform is Linux, it is also supported on operating systems for Apple's Mac computers (known as OS X or macOS).
Please note that less developers work on QEMU for Mac hosts, so it might be less stable (but I don't think it is).
Some system emulations on Linux use KVM, a special emulation mode which claims to reach nearly native speed. KVM is mainly used for x86 (32 and 64 bit) emulation on x86 hosts running Linux. Should you want to run Qemu with KVM support on a G5, depending on your distribution, you might have to compile your own kernel with KVM support. There exists a port of QEMU to Hypervisor.framework (a kernel module from Apple which is similar in spirit to KVM), but unfortunately it is not included in upstream QEMU.
qemu-system-i386 version 1.6.2
- CPU: PowerPC G5
- Operating System: Mac OS 10.4 or higher
qemu-system-ppc, qemu-system-x86_64, and qemu-system-i386 version 2.10.1
- CPU: 64-bit x86
- Operating System: Mac OS 10.6 or higher
Building QEMU for OS X
The system requirements are:
- OS X 10.5 or higher
- The clang compiler shipped with Xcode 4.2 or higher, or GCC 4.3 or higher
Additional build requirements are:
After downloading the QEMU source code, double-click it to expand it.
Then configure and make QEMU. The target-list option is used to build only the machine or machines you want. If you don't specify it, all machines would be built. Probably not what you want.
./configure --target-list=<list of machines here> make
This way doesn't require you to wait for the configure command to complete:
./configure --target-list=<list of machines here> && make
If your system has the 'say' command, you can use it to tell you when QEMU is done
./configure --target-list=i386-softmmu,ppc-softmmu && make ; say "I'm all done compiling QEMU"
You can use './configure --help' to see a full list of options.
Here are all the currently available machines:
If you have a recent version of Mac OS X (OS X 10.7 or better with Xcode 4.2 or better) we recommend building QEMU with the -default compiler provided by Apple, for your version of Mac OS X (which will be 'clang'). The configure script will automatically pick this.
Errors on old compilers
Note: If after the configure step you see a message like this:
ERROR: Your compiler does not support the __thread specifier for Thread-Local Storage (TLS). Please upgrade to a version that does.
You can have several versions of GCC on your system. To specify a certain version, use the --cc and --cxx options.
./configure --cxx=<path of your c++ compiler> --cc=<path of your c compiler> <other options>
Build with LLVM/Clang 7
If you need to compile with newer versions of clang (to get f.i. AVX/AVX2 support), you can install llvm through e.g., brew.
brew install llvm
Note that building for machines with CPUs supporting such extensions will exclude running your binary on earlier machines.
./configure --cc=clang-7 --cxx=clang++-7 --host-cc=clang-7 \ --extra-cflags=-mavx2 \ --extra-cxxflags="-I/usr/local/opt/llvm/include" \ --extra-ldflags="-L/usr/local/opt/llvm/lib -L/usr/local/opt/libffi/lib -L/usr/local/opt/llvm/lib -Wl,-rpath,/usr/local/opt/llvm/lib" \ --target-list="ppc-softmmu"
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