PS3 NetBSD Port in Development by Gitbrew for OtherOS++ CFW

**ireggae** · 14th January 2012

PS3 NetBSD Port in Development by Gitbrew for OtherOS++ CFW

Updater Error Fix releases, and now PlayStation 3 developer Glevand of Gitbrew has started work on porting NetBSD to the PS3 OtherOS++ (CFW) Custom Firmware.

To quote on the progress thus far: PS3: NetBSD

Ok, here i will start porting NetBSD to PS3 OtherOS++.
It would be cool to have another BSD on PS3.
Special thanks to Makoto Fujiwara and Tsubai Masanari for porting NetBSD to PS3.
Any help is welcome. Come on BSD fans, let us run NetBSD on PS3.
It is still work in progress and i'm not able to run NetBSD on PS3 yet.

Obtaining Source Code

Code:

# cd /usr
# export CVS_RSH="ssh"
# export CVSROOT="anoncvs@anoncvs.NetBSD.org:/cvsroot"
# cvs checkout -A -P src
# ftp ftp://nandra.segv.jp/pub/NetBSD/ps3/ps3-111111.tar.gz

Building the Toolchain

I must say the toolchain is really super done.
Linux really sucks in comparison with NetBSD or FreeBSD regarding toolchain and cross-compiling.

Code:

# cd /usr/src
# mv sys/arch/powerpc ~
# tar xvzf ps3-111111.tar.gz
# patch -p0 < build.sh.patch
# patch -p0 < elf_machdep.h.patch
# mkdir /usr/obj
# cd tools
# sh ./mkheaderlist.sh
# cd ..
# ./build.sh -m ps3 -a powerpc64 tools

Code:

===> Tools built to /usr/src/obj/tooldir.NetBSD-5.1-amd64
===> build.sh ended:      Sat Jan  7 15:34:30 CET 2012
===> Summary of results:
         build.sh command:    ./build.sh -m ps3 -a powerpc64 tools
         build.sh started:    Sat Jan  7 15:23:22 CET 2012
         NetBSD version:      5.99.59
         MACHINE:             ps3
         MACHINE_ARCH:        powerpc64
         Build platform:      NetBSD 5.1 amd64
         HOST_SH:             /bin/sh
         No $TOOLDIR/bin/nbmake, needs building.
         Bootstrapping nbmake
         TOOLDIR path:        /usr/src/obj/tooldir.NetBSD-5.1-amd64
         DESTDIR path:        /usr/src/obj/destdir.ps3
         RELEASEDIR path:     /usr/src/obj/releasedir
         Created /usr/src/obj/tooldir.NetBSD-5.1-amd64/bin/nbmake
         Updated makewrapper: /usr/src/obj/tooldir.NetBSD-5.1-amd64/bin/nbmake-ps3
         Tools built to /usr/src/obj/tooldir.NetBSD-5.1-amd64
         build.sh ended:      Sat Jan  7 15:34:30 CET 2012

Compiling Kernel

Modify Tsubai Masanari's source code to use current powerpc infrastructure of NetBSD else no chance that NetBSD will accept our port.
Tsubai Masanari's source code uses powerpc64 arch which is NOT present in NetBSD source. Everything is in powerpc arch.
Currently, NetBSD supports 64bit PowerPC arch only in 64bit bridge mode, that means 32bit kernel and user-space.
64bit bridge mode won't work on CELL cpu. It is not supported.

Code:

# cd /usr/src
# patch -p0 < PS3.patch
# patch -p0 < cpu.h.patch
# patch -p0 < pio.h.patch
# patch -p0 < cpu_counter.h.patch
# patch -p0 < spr.h.patch
# patch -p0 < altivec.c.patch
# patch -p0 < cpufunc.h.patch
# patch -p0 < powerpc_machdep.c.patch
# patch -p0 < cpu_970.c.patch
# patch -p0 < fpu.c.patch
# patch -p0 < trap.c.patch
# patch -p0 < ps3pic.c.patch
# patch -p0 < vuart.c.patch
# patch -p0 < clock.c.patch
# patch -p0 < extintr.c.patch
# patch -p0 < machdep.c.patch
# patch -p0 < pmap.h.patch
# patch -p0 < pmap.c.patch
# patch -p0 < ps3av_cmd.c.patch
# patch -p0 < if_gelic.c.patch
# cd sys/arch/ps3/conf
# /usr/obj/tooldir.NetBSD-5.1-amd64/bin/nbconfig PS3
# cd ../compile/PS3
# export PATH=/usr/obj/tooldir.NetBSD-5.1-amd64/bin:$PATH
# /usr/obj/tooldir.NetBSD-5.1-amd64/bin/nbmake-ps3 depend
# /usr/obj/tooldir.NetBSD-5.1-amd64/bin/nbmake-ps3 NOGCCERROR=1
# file netbsd

netbsd: ELF 64-bit MSB executable, 64-bit PowerPC or cisco 7500, version 1 (SYSV), statically linked, for NetBSD 5.99.59, not stripped

Compiling Loader

Code:

# cd /usr/src
# patch -p0 < Makefile.patch
# patch -p0 < start.S.patch
# patch -p0 < boot.c.patch
# patch -p0 < gelic.c.patch
# patch -p0 < devopen.c.patch
# cd sys/arch/ps3/stand/boot
# /usr/obj/tooldir.NetBSD-5.1-amd64/bin/nbmake-ps3 depend
# /usr/obj/tooldir.NetBSD-5.1-amd64/bin/nbmake-ps3 NOGCCERROR=1 LIBCRT0= LIBC= LIBCRTBEGIN= LIBCRTEND=
# file boot.elf

boot.elf: ELF 64-bit MSB executable, 64-bit PowerPC or cisco 7500, version 1 (SYSV), statically linked, not stripped

Booting with Petitboot on OtherOS++

Bootloader doesn't work yet but it looks very promising. I can run code in loader already.

# kexec -l boot.elf
# reboot

Compiling User-Space

Links

Code:

    Why NetBSD and NOT Linux: Jesse's Page
    NetBSD/ps3/
    ftp://nandra.segv.jp/pub/NetBSD/ps3/
    Chapter*30.*Obtaining the sources
    Porting NetBSD to the AMD x86-641: a case study in OS portability
    UVM: http://www.usenix.org/event/usenix99...nor/cranor.pdf
    ftp://ftp.gcu-squad.org/pub/books/netbsd-io-2002.pdf
    http://www.atmnis.com/~proger/openky...proger_sys.pdf
    http://www.netbsd.org/docs/kernel/bus_dma.pdf
    http://maxim.int.ru/bookshelf/osdi99.pdf
    Porting OpenBSD to the Solbourne S4000
    http://www.teamten.com/lawrence/291.paper.pdf