Date: Sun, 11 Feb 2024 20:43:59 +0100 From: Mario Marietto <marietto2008@gmail.com> To: Mark Millard <marklmi@yahoo.com> Cc: freebsd-arm <freebsd-arm@freebsd.org>, FreeBSD Mailing List <freebsd-questions@freebsd.org>, freebsd-hackers <freebsd-hackers@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org>, Warner Losh <imp@bsdimp.com> Subject: Re: How to use the L4 Microkernel with a FreeBSD userland. Message-ID: <CA%2B1FSign02NftThWsgVVRV6Ec83-T1sATiUKh7dHmmoXzW-_mg@mail.gmail.com> In-Reply-To: <071E080E-C0E6-40F0-A0DF-4FCC22FC004D@yahoo.com> References: <CA%2B1FSijq0ez9%2BJXCSJP2rfWUXLjcTaEPJo-3NcO5Vu3H26L=hg@mail.gmail.com> <071E080E-C0E6-40F0-A0DF-4FCC22FC004D@yahoo.com>
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--00000000000019a36f0611206470 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable ok. But what does this mean ? That I can use whatever Linux distro I want ? Or even the FreeBSD world ? On Sun, Feb 11, 2024 at 7:59=E2=80=AFPM Mark Millard <marklmi@yahoo.com> wr= ote: > > > On Feb 11, 2024, at 05:44, Mario Marietto <marietto2008@gmail.com> wrote: > > > I'm trying to understand how to use the L4 Microkernel with a FreeBSD > userland. I've asked the same to a L4 developer,but he told me that he do= es > not know FreeBSD,so I'm here to ask the same question. First of all I'm > sure that it can be done,because it is written clearly on their website : > > > > > > http://os.inf.tu-dresden.de/L4Re/download/snapshots/ > > > > > > on the section : > > Host system requirements > > The host system shall be a 64bit-based system with a recent Linux > distribution installed and at least 2GB of free disk space. > > All necessary tools required by the build are available from the > provided packages of the Linux distributions, including cross compilers. > But there are also other cross compiler packages available (see below). Y= ou > might want to run make check_build_tools in the src/l4 directory to verif= y > the common tools are installed. > > You are free to use any Linux distribution you like, or even BSDs or an= y > of its derivatives. But then you should know the game. Especially tool > versions should be recent, as installed on the listed distributions below= . > > We are confident that the snapshot works on the following distributions= : > > =E2=80=A2 Debian 11 or later > > =E2=80=A2 Ubuntu 22.04 or later > > > > Let's say I want to use the L4 microkernel + FreeBSD 14 on my Raspberry > Pi 4,the first step I did was to build L4Re for the Rpi,according with th= is > instructions : > > > > > > http://os.inf.tu-dresden.de/L4Re/rpi.html > > > > This is the log file of the compilation,that hasn't given any error : > > > > > > https://pastebin.ubuntu.com/p/6SwN2mpJBM/ > > > > > > Or I could have taken a pre built image of the L4 microkernel here : > > > > > > http://os.inf.tu-dresden.de/download/snapshots/pre-built-images/arm64/ > > > > > > > > At this point the tutorial says that I should use a Linux distro. They > suggest the official distro for the Raspberry Pi 4,that's RaspBian. But I > don't want to use Linux as a userland,I want to use FreeBSD. The question > now is : what should I do to achieve that goal ? How can I link the L4 > microkernel with the ubldr bootloader of FreeBSD ? Or should I link it to > the kernel of FreeBSD ? Can someone explain to me the missing step ? than= ks. > > QUOTING the "Configuring yourself" section: > The make setup step configures predefined setups for both the L4Re > microkernel (Fiasco) and the L4Re user-level software, and connects both > together so the images for the target system can be built. > END QUOTE > > So L4Re has its own user-level software, not just a kernel. There is no > use of a Linux or FreeBSD user-level software > when L4Re is booted. (They are just used for building.) > > "The host system" is just a host for building the L4Re parts and > assembling the image from the parts. The "Pulling it together" section is > about combining the parts (including the microkernel and the user-level > software) to make the overall image that does not include Linux or FreeBS= D > code. > > > =3D=3D=3D > Mark Millard > marklmi at yahoo.com > > --=20 Mario. --00000000000019a36f0611206470 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">ok. But what does this mean ? That I can use whatever Linu= x distro I want ? Or even the FreeBSD world ? <br></div><br><div class=3D"g= mail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, Feb 11, 2024 at 7= :59=E2=80=AFPM Mark Millard <<a href=3D"mailto:marklmi@yahoo.com">marklm= i@yahoo.com</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style= =3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding= -left:1ex"><br> <br> On Feb 11, 2024, at 05:44, Mario Marietto <<a href=3D"mailto:marietto200= 8@gmail.com" target=3D"_blank">marietto2008@gmail.com</a>> wrote:<br> <br> > I'm trying to understand how to use the L4 Microkernel with a Free= BSD userland. I've asked the same to a L4 developer,but he told me that= he does not know FreeBSD,so I'm here to ask the same question. First o= f all I'm sure that it can be done,because it is written clearly on the= ir website :<br> > <br> > <br> > <a href=3D"http://os.inf.tu-dresden.de/L4Re/download/snapshots/" rel= =3D"noreferrer" target=3D"_blank">http://os.inf.tu-dresden.de/L4Re/download= /snapshots/</a><br> > <br> > <br> > on the section :<br> > Host system requirements<br> > The host system shall be a 64bit-based system with a recent Linux dist= ribution installed and at least 2GB of free disk space.<br> > All necessary tools required by the build are available from the provi= ded packages of the Linux distributions, including cross compilers. But the= re are also other cross compiler packages available (see below). You might = want to run make check_build_tools in the src/l4 directory to verify the co= mmon tools are installed.<br> > You are free to use any Linux distribution you like, or even BSDs or a= ny of its derivatives. But then you should know the game. Especially tool v= ersions should be recent, as installed on the listed distributions below.<b= r> > We are confident that the snapshot works on the following distribution= s:<br> >=C2=A0 =C2=A0 =C2=A0=E2=80=A2 Debian 11 or later<br> >=C2=A0 =C2=A0 =C2=A0=E2=80=A2 Ubuntu 22.04 or later<br> > <br> > Let's say I want to use the L4 microkernel + FreeBSD 14 on my Rasp= berry Pi 4,the first step I did was to build L4Re for the Rpi,according wit= h this instructions :<br> > <br> > <br> > <a href=3D"http://os.inf.tu-dresden.de/L4Re/rpi.html" rel=3D"noreferre= r" target=3D"_blank">http://os.inf.tu-dresden.de/L4Re/rpi.html</a>; <br> > <br> > This is the log file of the compilation,that hasn't given any=C2= =A0 error :<br> > <br> > <br> > <a href=3D"https://pastebin.ubuntu.com/p/6SwN2mpJBM/" rel=3D"noreferre= r" target=3D"_blank">https://pastebin.ubuntu.com/p/6SwN2mpJBM/</a><br>; > <br> > <br> > Or I could have taken a pre built image of the L4 microkernel here : <= br> > <br> > <br> > <a href=3D"http://os.inf.tu-dresden.de/download/snapshots/pre-built-im= ages/arm64/" rel=3D"noreferrer" target=3D"_blank">http://os.inf.tu-dresden.= de/download/snapshots/pre-built-images/arm64/</a><br> > <br> > <br> > <br> > At this point the tutorial says that I should use a Linux distro. They= suggest the official distro for the Raspberry Pi 4,that's RaspBian. Bu= t I don't want to use Linux as a userland,I want to use FreeBSD. The qu= estion now is : what should I do to achieve that goal ? How can I link the = L4 microkernel with the ubldr bootloader of FreeBSD ? Or should I link it t= o the kernel of FreeBSD ? Can someone explain to me the missing step ? than= ks.<br> <br> QUOTING the "Configuring yourself" section:<br> The make setup step configures predefined setups for both the L4Re microker= nel (Fiasco) and the L4Re user-level software, and connects both together s= o the images for the target system can be built.<br> END QUOTE<br> <br> So L4Re has its own user-level software, not just a kernel. There is no use= of a Linux or FreeBSD user-level software<br> when L4Re is booted. (They are just used for building.)<br> <br> "The host system" is just a host for building the L4Re parts and = assembling the image from the parts. The "Pulling it together" se= ction is about combining the parts (including the microkernel and the user-= level software) to make the overall image that does not include Linux or Fr= eeBSD code.<br> <br> <br> =3D=3D=3D<br> Mark Millard<br> marklmi at <a href=3D"http://yahoo.com" rel=3D"noreferrer" target=3D"_blank= ">yahoo.com</a><br> <br> </blockquote></div><br clear=3D"all"><br><span class=3D"gmail_signature_pre= fix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature">Mario.<br></d= iv> --00000000000019a36f0611206470--
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