The goal of qemu-darwin-user is to run darwin/x86 process on a darwin/ppc host (and vice versa). It would allow wine/darwin/x86 to run on a Mac OS X/PPC host.
qemu-darwin-user is also known as Attesor for inversed Rosetta.
Status
- PowerPC on PowerPC: simple app without dyld works. Simple App should work providing that you are running on a 32 bits PowerPC.
- Intel x86 on PowerPC: simple app without dyld works. Simple App using the dynamic linker works with dyld from Mac OS X 10.4.6 (eg: bin/ls).
Screenshot
Here is a "screenshot" of ls for Mac OS X/x86 running threw qemu-darwin-user on a iMac G5.
iMac-G5:/Volumes/Builds/Build8C46/BuildRoot steg$ uname -p && file bin/ls powerpc bin/ls: Mach-O fat file with 1 architecture bin/ls (for architecture i386): Mach-O executable i386 iMac-G5:/Volumes/Builds/Build8C46/BuildRoot steg$ qemu-i386 -L /Volumes/Builds/Build8C46/BuildRoot/ -d in_asm bin/ls Starting bin/ls with qemu ---------------- AppleInternal Network Users cores mach sbin var Developer SourceCache XCD dev mach_kernel tmp Library System bin etc private usr
Todo
Major issues
<strike>implement signal handling.</strike>
- support threading.
<s>make qemu-user able to launch executable at the default address space (0x1000)</s> patch.
<s>understand why the commpage doesn't have valid ppc32 instruction on a Mac/ppc</s> (because I am on a 64 bits Proc!).
Minor issues
- finish syscall implementation
- ioctls.
- fcntl.
- ...
- finish the commpage handling.
- merge with qemu cvs:
<s>Remove the old lcall hack, so we don't need hack in libqemu</s> patch
- Prepare a patch against qemu cvs
Get the code
cvs -d:pserver:anonymous:@darwine.cvs.sourceforge.net:/cvsroot/darwine checkout qemu
Prepare the build/test environment
- Make sure you have the latest Developer Tools
- check if the x86 build environment is present:
$ file /Developer/SDKs/MacOSX10.4u.sdk/usr/lib/libSystem.B.dylib
which should report:
/Developer/SDKs/MacOSX10.4u.sdk/usr/lib/libSystem.B.dylib: Mach-O fat file with 3 architectures /Developer/SDKs/MacOSX10.4u.sdk/usr/lib/libSystem.B.dylib (for architecture ppc64): Mach-O 64-bit dynamically linked shared library stub ppc64 /Developer/SDKs/MacOSX10.4u.sdk/usr/lib/libSystem.B.dylib (for architecture i386): Mach-O dynamically linked shared library stub i386 /Developer/SDKs/MacOSX10.4u.sdk/usr/lib/libSystem.B.dylib (for architecture ppc): Mach-O dynamically linked shared library stub ppc
Build a FAT dyld using darwinbuild
Download and install darwinbuild
- Create a build image
$ hdiutil create -size 4g -type UDIF -fs HFSX -volname Builds -uid 0 -gid 0 -attach Builds.dmg
- Initialize the image
$ cd /Volumes/Builds $ sudo mkdir Build8C46 $ cd Build8C46 $ sudo darwinbuild -init 8C46
- build dyld
$ sudo darwinbuild dyld
you will be able to find dyld in /Volumes/Builds/Build8C46/BuildRoot/usr/lib/dyld
Build the code
- Make sure gcc-3.3 is used: gcc-4.0 can't build qemu.
$ sudo gcc_select 3.3
- Then you can just type:
$ ./configure --target-list="i386-darwin-user ppc-darwin-user" $ make $ sudo make install
Test it
- Simple helloworld wich doesn't relay on dyld (darwin dynamic linker)
$ cd path/to/qemu $ gcc -g -arch i386 -seg1addr 0x500000 -e _main -nostdlib -o helloworld-i386-nostd tests/helloworld-i386-nostd.c $ i386-darwin-user/qemu-i386 -L /Volumes/Builds/Build8C46/BuildRoot/ -d in_asm,cpu /absolute/path/to/helloworld-i386-nostd
- helloworld with dyld (darwin dynamic linker) not relocated
$ cd path/to/qemu $ gcc -g -arch i386 -o helloworld-i386 tests/helloworld.c -L/Developer/SDKs/MacOSX10.4u.sdk/usr/lib/ $ i386-darwin-user/qemu-i386 -L /Volumes/Builds/Build8C46/BuildRoot/ -d in_asm,cpu /absolute/path/to/helloworld-i386
- printenv from the darwinbuild root
$ cd /Volumes/Builds/Build8C46/BuildRoot/usr/bin $ qemu-i386 -L /Volumes/Builds/Build8C46/BuildRoot/ printenv