[M3devel] adding new target?

[Daniel Alejandro Benavides D.]

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
> 
>