[M3devel] adding new target?

[Jay K]

 > does this MIPS have MMU-less chipI doubt it, but maybe.
I think even routers are "big" systems with MMUs.

 - Jay

> Date: Fri, 4 Nov 2011 16:28:29 +0000
> From: dabenavidesd at yahoo.es
> To: m3devel at elegosoft.com; mika at async.caltech.edu
> Subject: Re: [M3devel] adding new target?
> 
> Hi all:
> Does this MIPS have MMU-less chip, meaning, there are embedded linuses that run it:
> http://books.google.com/books?id=kk8G2gK4Tw8C&lpg=PA48&ots=c_1Nl4KtOw&dq=%22MMu-less%22%20mips&pg=PA49#v=onepage&q&f=false
> 
> This is a must in terms of addresanility, besides others like the endianess
> or sort for DS3100, etc re-configurable (weel not in hot but at driver level, like in SPARC:
> 
> http://www.fortunecity.com/skyscraper/motorola/22/resume.htm
> ).
> 
> At the bottom of this and newer SMp there are issues as in Intel, that might be need to be put in consideration for gcc or so:
> http://www.youtube.com/watch?v=WUfvvFD5tAA.
> 
> I don't know maybe that gcc for gnu/m3 was not a bad idea at all (fsf isn't helping that as well too much):
> http://users.crocker.com/~hudson/hudson.html
> 
> Thanks in advance
> 
> --- El vie, 4/11/11, Mika Nystrom <mika at async.caltech.edu> escribió:
> 
> > De: Mika Nystrom <mika at async.caltech.edu>
> > Asunto: [M3devel] adding new target?
> > Para: m3devel at elegosoft.com
> > Fecha: viernes, 4 de noviembre, 2011 02:30
> > Hi Jay,
> > 
> > I know you have mentioned before that it's now "easy" to
> > add a new target.
> > I would like to add a target that is already mostly there,
> > I think.
> > The one I want is mipsel-linux.  This is to run on an
> > Asus RT-N16 router
> > running OpenWRT or DD-WRT.  These devices have 500 MHz
> > MIPS processors
> > and 128 MB of DRAM.
> > 
> > First before you read this email, are there any
> > instructions for what
> > I'm trying to do anywhere, beyond your emails?  I am
> > using boot1.py
> > as you suggested.
> > 
> > What I did was the following (guesses all along):
> > 
> > made a cm3.cfg which I called MIPSEL_LINUX and put in 
> > m3-sys/cminstall/src/config-no-install:
> > 
> > ::::
> > readonly TARGET = "MIPSEL_LINUX" % code generation target
> > readonly GNU_PLATFORM = "mipsel-linux" % "cpu-os" string
> > for GNU
> > 
> > SYSTEM_CC = "gcc -gstabs+ -fPIC" % C compiler
> > SYSTEM_ASM = "as" % Assembler
> > 
> > m3back_m32 = "" % -m32 not allowed
> > 
> > include("MIPSEL.common")
> > include("Linux.common")
> > ::::
> > 
> > where MIPSEL.common contains:
> > 
> > ::::
> > 
> > readonly TARGET_ARCH = "MIPS"
> > readonly TARGET_ENDIAN = "LITTLE"   % {
> > "BIG" OR "LITTLE" }
> > readonly WORD_SIZE    = "32BITS"    % {
> > "32BITS" or "64BITS" }
> > 
> > ::::
> > 
> > Now I don't really know which of these strings are just
> > arbitrary
> > strings that I'm defining here and which of them have to
> > match
> > other things (and if so, what they have to match).
> > 
> > In any case I'm doing something wrong because I do (on a
> > FreeBSD4
> > machine)...
> > 
> > ./boot1.py MIPSEL_LINUX
> > 
> > which runs for a bit and eventually degenerates to
> > 
> > gmake[1]: Nothing to be done for `all'.
> > gmake[1]: Leaving directory
> > `/big/home2/mika/2/cm3-cvs/cm3/m3-sys/m3cc/FreeBSD4-I386_FREEBSD/libdecnumber'
> > cd ../FreeBSD4-I386_FREEBSD && cd libcpp &&
> > gmake  CFLAGS="-g
> > -O2"   MAKE=gmake  AUTOCONF=: AUTOMAKE=:
> > LEX='touch lex.yy.c' MAKEINFO=: libcpp.a |  tee -a
> > 
> > /big/home2/mika/2/cm3-cvs/cm3/m3-sys/m3cc/src/../FreeBSD4-I386_FREEBSD/_m3.log
> > cd ../FreeBSD4-I386_FREEBSD && cd libcpp &&
> > gmake  CFLAGS="-g
> > -O2"   MAKE=gmake  AUTOCONF=: AUTOMAKE=:
> > LEX='touch lex.yy.c' MAKEINFO=: libcpp.a |  tee -a
> > 
> > /big/home2/mika/2/cm3-cvs/cm3/m3-sys/m3cc/src/../FreeBSD4-I386_FREEBSD/_m3.log
> > gmake: `libcpp.a' is up to date.
> > cd ../FreeBSD4-I386_FREEBSD && cd gcc &&
> > gmake  CFLAGS="-g
> > -O2"   MAKE=gmake  AUTOCONF=: AUTOMAKE=:
> > LEX='touch lex.yy.c' MAKEINFO=: s-modes insn-config.h
> >  m3cg | tee -a
> > /big/home2/mika/2/cm3-cvs/cm3/m3-sys/m3cc/src/../FreeBSD4-I386_FREEBSD/_m3.log
> > cd ../FreeBSD4-I386_FREEBSD && cd gcc &&
> > gmake  CFLAGS="-g
> > -O2"   MAKE=gmake  AUTOCONF=: AUTOMAKE=:
> > LEX='touch lex.yy.c' MAKEINFO=: s-modes insn-config.h
> >  m3cg | tee -a
> > /big/home2/mika/2/cm3-cvs/cm3/m3-sys/m3cc/src/../FreeBSD4-I386_FREEBSD/_m3.log
> > gmake: `s-modes' is up to date.
> > gmake: `insn-config.h' is up to date.
> > gmake: Nothing to be done for `m3cg'.
> > --- building in FreeBSD4 ---
> > 
> > new source -> compiling RTHooks.i3
> > ../src/runtime/common/RTHooks.i3:15: fatal error:  ***
> > illegal type: 0x6f, at m3cg_lineno 5
> > compilation terminated.
> >   m3_backend => 1
> > m3cc (aka cm3cg) failed compiling: RTHooks.ic
> > new source -> compiling RT0.i3
> > ../src/runtime/common/RT0.i3:19: fatal error:  ***
> > illegal type: 0x6f, at m3cg_lineno 5
> > compilation terminated.
> >   m3_backend => 1
> > m3cc (aka cm3cg) failed compiling: RT0.ic
> > new source -> compiling RuntimeError.i3
> > ../src/runtime/common/RuntimeError.i3:10: fatal
> > error:  *** illegal type: 0x6f, at m3cg_lineno 5
> > compilation terminated.
> >   m3_backend => 1
> > ...
> > 
> >     Mika
> > 
> > 
 		 	   		  
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