Re: [9fans] plan9 vs aout

Re: [9fans] plan9 vs aout

[Conor Williams]

[-- Attachment #1: Type: text/plain, Size: 26629 bytes --]

Here you go Jens
If theres a problem with it check the jpg from before
as i transcribed the asm
It should be ok though
Kind Regards
Conor

   .text
.LC0
   .ascii "Hello World\0"
   .balign 4
.global main
main:
    pushl %ebp
    movl  %esp, %ebp
    subl $*, %esp
    call __main
    subl $12, %esb
    pushl  printf
    addl  $16, %esp
    leave
    ret

On Fri, Jun 19, 2020 at 11:36 AM Jens Staal <staal1978@gmail.com> wrote:

> Well the thing is still to figure out how to make a functional cross
> compiler
> from the recent binutils and gcc. I have gone through the code that I
> moved from
> the old 2.11/3.0 ports to binutils/gcc and it seems like I have covered it
> all.
>
> I suppose I should try to export the output from the old gcc 3.0
> gcc -S Hello.c and then use that output to try to test the newer binutils
> as and
> ld using the old libgcc and libc from the 3.0 port.
>
> Could you send the Hello.S you got from gcc 3.0?
>
> If the new binutils is working to make a functional i386-plan9 executable,
> I
> should focus on trying to make the new gcc compile and then test that one
> too in
> the same way as cross compiler using the old libc and new binutils, and
> then
> compile a new libc using the new gcc.
>
> I ended up in the mess of the as because I wanted to do an intermediate
> test of
> the binutils before moving on to gcc...
>
> On Fri, Jun 19, 2020 at 10:16:35AM +0100, Conor Williams wrote:
> > where to next Jens or are you ok again?...
> >
> > On Wed, Jun 17, 2020 at 4:45 PM Conor Williams <conor.williams@gmail.com
> >
> > wrote:
> >
> > > yes, the 3.0 port...
> > >
> > >
> > >
> > > On Wed, Jun 17, 2020 at 1:17 PM Jens Staal <staal1978@gmail.com>
> wrote:
> > >
> > >> Great
> > >>
> > >> This was with the old 3.0 port?
> > >>
> > >> On Wed, Jun 17, 2020 at 10:25:46AM +0100, Conor Williams wrote:
> > >> > wahoo i got it compiled in stages...
> > >> >
> > >> > i386...gcc -S hello.c
> > >> > i386...as  -o hello.o hello.S
> > >> > i386....ld crt0.o hello.o -L. -lgcc -lc -lgcc
> > >> >
> > >> > # ./a.out
> > >> > Hello World!
> > >> > #
> > >> >
> > >> >
> > >> > On Wed, Jun 17, 2020 at 9:40 AM Conor Williams <
> > >> conor.williams@gmail.com>
> > >> > wrote:
> > >> >
> > >> > > ok, kewl...
> > >> > >
> > >> > > it turns out that as creates an intermediate object file which
> > >> happens to
> > >> > > be, i feel, incorrectly
> > >> > > called a.out...
> > >> > >
> > >> > > im not quite there but you send this file to
> 'i386-lucent-plan9-ld'
> > >> and
> > >> > > link them all
> > >> > >
> > >> > > something like this:
> > >> > >
> > >> > > i386-lucent-plan9-ld -o print3 libgcc.a libc.a print3.o
> > >> > >
> > >> > > (where print3.o is the output from i386-lucent-plan9-ld)
> > >> > > (i got the i386-lucent-plan9-gcc from
> > >> > > https://9p.io/sources/extra/gcc/gnubin.tgz)
> > >> > >
> > >> > > On Wed, Jun 17, 2020 at 9:26 AM Jens Staal <staal1978@gmail.com>
> > >> wrote:
> > >> > >
> > >> > >> The reason I tested as on and asm file was because I have
> managed to
> > >> build
> > >> > >> binutils with i386-plan9 target, but not gcc yet.
> > >> > >>
> > >> > >> On Wed, Jun 17, 2020 at 09:09:46AM +0100, Conor Williams wrote:
> > >> > >> > i got gcc to create an a.out and it is 18k in size so i think
> > >> > >> > 'i386-lucent-plan9-as'
> > >> > >> > should be passed command line params to get it to load some
> > >> external
> > >> > >> libs
> > >> > >> > etc...
> > >> > >> >
> > >> > >> > attached is asm generated by plan9 gcc on plan 9 using the same
> > >> gcc that
> > >> > >> > created a proper a.out
> > >> > >> >
> > >> > >> > a quick question - why are you 'as' to do this and not gcc?...
> > >> > >> >
> > >> > >> > On Wed, Jun 17, 2020 at 8:03 AM Conor Williams <
> > >> > >> conor.williams@gmail.com>
> > >> > >> > wrote:
> > >> > >> >
> > >> > >> > > do a gcc -S hello.c
> > >> > >> > > with a printf("helo world"); in it...
> > >> > >> > >
> > >> > >> > > On Wed, Jun 17, 2020 at 4:27 AM Jens Staal <
> staal1978@gmail.com>
> > >> > >> wrote:
> > >> > >> > >
> > >> > >> > >> This is really weird. The only thing I can think of is that
> > >> > >> something is
> > >> > >> > >> wrong
> > >> > >> > >> with the Hello.S example that I downloaded from here:
> > >> > >> > >> https://www.tldp.org/HOWTO/Assembly-HOWTO/hello.html
> > >> > >> > >>
> > >> > >> > >> basically the same here:
> > >> > >> > >> https://en.wikipedia.org/wiki/GNU_Assembler
> > >> > >> > >>
> > >> > >> > >> but I now noticed something: I think the 0x80 is a 32 bit
> > >> > >> Linux-specific
> > >> > >> > >> thing so the
> > >> > >> > >> code is perhaps non-portable....
> > >> > >> > >>
> > >> > >> > >> I have now tested as from the old binutils 2.22 and 2.11
> that
> > >> were
> > >> > >> native
> > >> > >> > >> on
> > >> > >> > >> Plan9. I know for a fact that they should work but both also
> > >> gave
> > >> > >> the same
> > >> > >> > >> error, so most likely the example asm file that I have been
> > >> trying
> > >> > >> is not
> > >> > >> > >> appropriate.
> > >> > >> > >>
> > >> > >> > >> No idea what the i386-plan9 variant of 0x80 would be.
> > >> > >> > >>
> > >> > >> > >> Grrr!
> > >> > >> > >>
> > >> > >> > >> On Tue, Jun 16, 2020 at 11:24:08PM +0100, Conor Williams
> wrote:
> > >> > >> > >> > i386-as-plan9 -march i386 Hello.S
> > >> > >> > >> >
> > >> > >> > >> > doesnt create an i386 binary my friend...
> > >> > >> > >> >
> > >> > >> > >> > On Tue, Jun 16, 2020 at 11:09 PM Conor Williams <
> > >> > >> > >> conor.williams@gmail.com>
> > >> > >> > >> > wrote:
> > >> > >> > >> >
> > >> > >> > >> > > it turns out that, that a.out is a 68020 binary
> > >> > >> > >> > >
> > >> > >> > >> > > On Tue, Jun 16, 2020 at 10:03 PM Conor Williams <
> > >> > >> > >> conor.williams@gmail.com>
> > >> > >> > >> > > wrote:
> > >> > >> > >> > >
> > >> > >> > >> > >> ok... i agree...
> > >> > >> > >> > >>
> > >> > >> > >> > >> On Tue, Jun 16, 2020 at 8:02 PM Jens Staal <
> > >> staal1978@gmail.com
> > >> > >> >
> > >> > >> > >> wrote:
> > >> > >> > >> > >>
> > >> > >> > >> > >>> ok that is weird. I got the same error with the
> > >> > >> > >> i386-lucent-plan9-as on
> > >> > >> > >> > >>> Plan9
> > >> > >> > >> > >>> (a.out attached)
> > >> > >> > >> > >>>
> > >> > >> > >> > >>> I only copied the as so there is no strip involved.
> > >> > >> > >> > >>>
> > >> > >> > >> > >>>
> > >> > >> > >> > >>> On Tue, Jun 16, 2020 at 06:12:08PM +0100, Conor
> Williams
> > >> wrote:
> > >> > >> > >> > >>> > one thing before i delve into a linux vdi - that
> a.out
> > >> is
> > >> > >> > >> stripped,
> > >> > >> > >> > >>> can you
> > >> > >> > >> > >>> > send me the non-stripped version...
> > >> > >> > >> > >>> >
> > >> > >> > >> > >>> > On Tue, Jun 16, 2020 at 6:04 PM Conor Williams <
> > >> > >> > >> > >>> conor.williams@gmail.com>
> > >> > >> > >> > >>> > wrote:
> > >> > >> > >> > >>> >
> > >> > >> > >> > >>> > > right...
> > >> > >> > >> > >>> > >
> > >> > >> > >> > >>> > > On Tue, Jun 16, 2020 at 5:56 PM Jens Staal <
> > >> > >> staal1978@gmail.com
> > >> > >> > >> >
> > >> > >> > >> > >>> wrote:
> > >> > >> > >> > >>> > >
> > >> > >> > >> > >>> > >> yes that is plan9 asm from the i386 compiler 8c.
> > >> > >> > >> > >>> > >>
> > >> > >> > >> > >>> > >> Unfortunately, there are different asm dialects
> and
> > >> gcc
> > >> > >> uses
> > >> > >> > >> gas. It
> > >> > >> > >> > >>> > >> would otherwise have been awesome if one could
> just
> > >> > >> replace 8c
> > >> > >> > >> with
> > >> > >> > >> > >>> gcc and
> > >> > >> > >> > >>> > >> use the regular native stuff under it.
> > >> > >> > >> > >>> > >>
> > >> > >> > >> > >>> > >> Den tis 16 juni 2020 18:23Conor Williams <
> > >> > >> > >> conor.williams@gmail.com>
> > >> > >> > >> > >>> > >> skrev:
> > >> > >> > >> > >>> > >>
> > >> > >> > >> > >>> > >>> let me know what you think of the attached
> > >> picture...
> > >> > >> > >> > >>> > >>>
> > >> > >> > >> > >>> > >>> On Tue, Jun 16, 2020 at 3:37 PM Conor Williams <
> > >> > >> > >> > >>> conor.williams@gmail.com>
> > >> > >> > >> > >>> > >>> wrote:
> > >> > >> > >> > >>> > >>>
> > >> > >> > >> > >>> > >>>> ok...
> > >> > >> > >> > >>> > >>>>
> > >> > >> > >> > >>> > >>>> i setup an anonymous ftp server on my windows
> box
> > >> to
> > >> > >> transfer
> > >> > >> > >> > >>> files...
> > >> > >> > >> > >>> > >>>> (the new version of VirtualBox does
> > >> > >> > >> > >>> > >>>> not easily support file sharing)
> > >> > >> > >> > >>> > >>>>
> > >> > >> > >> > >>> > >>>>
> > >> > >> > >> > >>> > >>>>
> > >> > >> > >> > >>> > >>>> On Tue, Jun 16, 2020 at 3:23 PM Jens Staal <
> > >> > >> > >> staal1978@gmail.com>
> > >> > >> > >> > >>> wrote:
> > >> > >> > >> > >>> > >>>>
> > >> > >> > >> > >>> > >>>>> I noticed that the "gnubin" tarball linked on
> > >> > >> > >> > >>> > >>>>> https://marcus.biz.tm/jail/ is on
> > >> > >> > >> > >>> > >>>>> google drive so it is not as slow download as
> > >> > >> everything
> > >> > >> > >> else
> > >> > >> > >> > >>> from
> > >> > >> > >> > >>> > >>>>> that site.
> > >> > >> > >> > >>> > >>>>>
> > >> > >> > >> > >>> > >>>>>
> > >> > >> > >>
> https://drive.google.com/open?id=0B6YNt0aHfaA0TkREcmdQdWVhY0E
> > >> > >> > >> > >>> > >>>>>
> > >> > >> > >> > >>> > >>>>> He has packaged it a bit strange as /usr/pkg/
> > >> which
> > >> > >> does not
> > >> > >> > >> > >>> make sense
> > >> > >> > >> > >>> > >>>>> considering the plan9 directory structure, but
> > >> perhaps
> > >> > >> one
> > >> > >> > >> can
> > >> > >> > >> > >>> test
> > >> > >> > >> > >>> > >>>>> the output
> > >> > >> > >> > >>> > >>>>> from that "as" too when run under Plan9.
> > >> > >> > >> > >>> > >>>>>
> > >> > >> > >> > >>> > >>>>> I have an issue moving stuff between my plan9
> > >> systems
> > >> > >> and my
> > >> > >> > >> > >>> Linux
> > >> > >> > >> > >>> > >>>>> system at the
> > >> > >> > >> > >>> > >>>>> moment (dual booting 9front, put stuff I want
> to
> > >> move
> > >> > >> > >> between the
> > >> > >> > >> > >>> > >>>>> systems in the
> > >> > >> > >> > >>> > >>>>> ESP partition = limited space, run 9front in
> > >> > >> Virtualbox, no
> > >> > >> > >> idea
> > >> > >> > >> > >>> how
> > >> > >> > >> > >>> > >>>>> to share files between my
> > >> > >> > >> > >>> > >>>>> Linux host and the VM).
> > >> > >> > >> > >>> > >>>>>
> > >> > >> > >> > >>> > >>>>> On Tue, Jun 16, 2020 at 03:02:40PM +0100,
> Conor
> > >> > >> Williams
> > >> > >> > >> wrote:
> > >> > >> > >> > >>> > >>>>> > ok, thanks Jens, im going to run a hex
> editor,
> > >> 'od',
> > >> > >> on
> > >> > >> > >> a.out
> > >> > >> > >> > >>> and
> > >> > >> > >> > >>> > >>>>> have a
> > >> > >> > >> > >>> > >>>>> > look as im getting:
> > >> > >> > >> > >>> > >>>>> >          "exec: header invalid"
> > >> > >> > >> > >>> > >>>>> > also.
> > >> > >> > >> > >>> > >>>>> >
> > >> > >> > >> > >>> > >>>>> > On Tue, Jun 16, 2020 at 10:49 AM Jens Staal
> <
> > >> > >> > >> > >>> staal1978@gmail.com>
> > >> > >> > >> > >>> > >>>>> wrote:
> > >> > >> > >> > >>> > >>>>> >
> > >> > >> > >> > >>> > >>>>> > > this is what I get when I do
> > >> i386-lucent-plan9-as
> > >> > >> with
> > >> > >> > >> my new
> > >> > >> > >> > >>> > >>>>> binutils on
> > >> > >> > >> > >>> > >>>>> > > Hello.S.
> > >> > >> > >> > >>> > >>>>> > >
> > >> > >> > >> > >>> > >>>>> > > I have not tried the old gcc/binutils
> ports
> > >> > >> running on
> > >> > >> > >> Plan9
> > >> > >> > >> > >>> on
> > >> > >> > >> > >>> > >>>>> this asm
> > >> > >> > >> > >>> > >>>>> > > file.
> > >> > >> > >> > >>> > >>>>> > >
> > >> > >> > >> > >>> > >>>>> > > On Tue, Jun 16, 2020 at 09:54:07AM +0100,
> > >> Conor
> > >> > >> Williams
> > >> > >> > >> > >>> wrote:
> > >> > >> > >> > >>> > >>>>> > > > ok, cool cool... and you translate this
> > >> assembler
> > >> > >> > >> file to
> > >> > >> > >> > >>> binary
> > >> > >> > >> > >>> > >>>>> on Plan
> > >> > >> > >> > >>> > >>>>> > > 9,
> > >> > >> > >> > >>> > >>>>> > > > how?...
> > >> > >> > >> > >>> > >>>>> > > >
> > >> > >> > >> > >>> > >>>>> > > > does the cross compiler not create a
> > >> binary?...
> > >> > >> could
> > >> > >> > >> you
> > >> > >> > >> > >>> send
> > >> > >> > >> > >>> > >>>>> me that
> > >> > >> > >> > >>> > >>>>> > > > too?...
> > >> > >> > >> > >>> > >>>>> > > >
> > >> > >> > >> > >>> > >>>>> > > > Kind Regards
> > >> > >> > >> > >>> > >>>>> > > > Conor
> > >> > >> > >> > >>> > >>>>> > > >
> > >> > >> > >> > >>> > >>>>> > > > On Tue, Jun 16, 2020 at 4:45 AM Jens
> Staal <
> > >> > >> > >> > >>> staal1978@gmail.com>
> > >> > >> > >> > >>> > >>>>> wrote:
> > >> > >> > >> > >>> > >>>>> > > >
> > >> > >> > >> > >>> > >>>>> > > > > Hi Conor
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > > I am currently focusing on getting the
> > >> modern
> > >> > >> gcc
> > >> > >> > >> and
> > >> > >> > >> > >>> binutils
> > >> > >> > >> > >>> > >>>>> to work
> > >> > >> > >> > >>> > >>>>> > > as
> > >> > >> > >> > >>> > >>>>> > > > > cross
> > >> > >> > >> > >>> > >>>>> > > > > compilers, so I build on Linux at the
> > >> moment.
> > >> > >> As
> > >> > >> > >> can be
> > >> > >> > >> > >>> seen
> > >> > >> > >> > >>> > >>>>> on the
> > >> > >> > >> > >>> > >>>>> > > > > comparison
> > >> > >> > >> > >>> > >>>>> > > > > below:
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> https://github.com/staalmannen/gcc/pull/3/files
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> https://github.com/staalmannen/binutils-gdb/pull/3/files
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > > there are several other changes
> needed to
> > >> > >> build on
> > >> > >> > >> Plan9
> > >> > >> > >> > >>> > >>>>> related to
> > >> > >> > >> > >>> > >>>>> > > missing
> > >> > >> > >> > >>> > >>>>> > > > > flags in the APE utilities (mv -f, ls
> > >> -di). I
> > >> > >> think
> > >> > >> > >> the
> > >> > >> > >> > >>> > >>>>> cleaner way to
> > >> > >> > >> > >>> > >>>>> > > > > deal with
> > >> > >> > >> > >>> > >>>>> > > > > those would be to make some rc script
> > >> wrappers
> > >> > >> that
> > >> > >> > >> > >>> catches
> > >> > >> > >> > >>> > >>>>> those
> > >> > >> > >> > >>> > >>>>> > > flags and
> > >> > >> > >> > >>> > >>>>> > > > > change them to something reasonable
> (mv,
> > >> ls -d)
> > >> > >> > >> rather
> > >> > >> > >> > >>> than
> > >> > >> > >> > >>> > >>>>> changing
> > >> > >> > >> > >>> > >>>>> > > the
> > >> > >> > >> > >>> > >>>>> > > > > source
> > >> > >> > >> > >>> > >>>>> > > > > code of gcc in a way that would
> interfere
> > >> with
> > >> > >> > >> building
> > >> > >> > >> > >>> it on
> > >> > >> > >> > >>> > >>>>> other
> > >> > >> > >> > >>> > >>>>> > > hosts.
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > > There are i386-Plan9 gcc/binutils +
> APE
> > >> library
> > >> > >> > >> binaries
> > >> > >> > >> > >>> for
> > >> > >> > >> > >>> > >>>>> > > > > 3.0
> > >> > >> > >> > >>> > >>>>> > > > > https://9p.io/sources/extra/gcc/
> > >> > >> > >> > >>> > >>>>> > > > > and 4.8.3
> > >> > >> > >> > >>> > >>>>> > > > > https://marcus.biz.tm/jail/
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > > Perhaps the 4.8.3 variant will be
> able to
> > >> > >> build gcc
> > >> > >> > >> 10 /
> > >> > >> > >> > >>> > >>>>> binutils 2.34
> > >> > >> > >> > >>> > >>>>> > > > > natively
> > >> > >> > >> > >>> > >>>>> > > > > on Plan9, but my bet is on a cross
> > >> compiler
> > >> > >> first,
> > >> > >> > >> which
> > >> > >> > >> > >>> then
> > >> > >> > >> > >>> > >>>>> can be
> > >> > >> > >> > >>> > >>>>> > > used
> > >> > >> > >> > >>> > >>>>> > > > > to
> > >> > >> > >> > >>> > >>>>> > > > > cross compile gcc/binutils to Plan9
> for
> > >> gcc as
> > >> > >> > >> native
> > >> > >> > >> > >>> compiler.
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > > I will set up a repo for the APE
> > >> libraries for
> > >> > >> gcc,
> > >> > >> > >> but
> > >> > >> > >> > >>> of
> > >> > >> > >> > >>> > >>>>> course we
> > >> > >> > >> > >>> > >>>>> > > first
> > >> > >> > >> > >>> > >>>>> > > > > need
> > >> > >> > >> > >>> > >>>>> > > > > to get binutils and gcc working
> before we
> > >> can
> > >> > >> try to
> > >> > >> > >> > >>> compile
> > >> > >> > >> > >>> > >>>>> anything,
> > >> > >> > >> > >>> > >>>>> > > > > including
> > >> > >> > >> > >>> > >>>>> > > > > the c library...
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > > Attached is the Hello.S I used for
> testing
> > >> > >> (copied
> > >> > >> > >> from
> > >> > >> > >> > >>> > >>>>> Internet)
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > > > > On Mon, Jun 15, 2020 at 08:02:21PM
> +0100,
> > >> Conor
> > >> > >> > >> Williams
> > >> > >> > >> > >>> wrote:
> > >> > >> > >> > >>> > >>>>> > > > > > hello Jens
> > >> > >> > >> > >>> > >>>>> > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > I have my Plan 9 virtual machine up
> and
> > >> > >> running...
> > >> > >> > >> > >>> > >>>>> > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > to start me off, can you send me the
> > >> "Hello.
> > >> > >> S"
> > >> > >> > >> binary
> > >> > >> > >> > >>> > >>>>> > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > also, to clarify, you are running
> the
> > >> > >> compiler on
> > >> > >> > >> a
> > >> > >> > >> > >>> *Linux*
> > >> > >> > >> > >>> > >>>>> box
> > >> > >> > >> > >>> > >>>>> > > creating
> > >> > >> > >> > >>> > >>>>> > > > > > the binary for Plan 9?
> > >> > >> > >> > >>> > >>>>> > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > Regards
> > >> > >> > >> > >>> > >>>>> > > > > > Conor (Williams)
> > >> > >> > >> > >>> > >>>>> > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > Regards
> > >> > >> > >> > >>> > >>>>> > > > > > Conor
> > >> > >> > >> > >>> > >>>>> > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > On Tue, Jun 9, 2020 at 9:03 PM Jens
> > >> Staal <
> > >> > >> > >> > >>> > >>>>> staal1978@gmail.com>
> > >> > >> > >> > >>> > >>>>> > > wrote:
> > >> > >> > >> > >>> > >>>>> > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > I have now added 2 more branches
> for
> > >> > >> reference
> > >> > >> > >> from
> > >> > >> > >> > >>> the
> > >> > >> > >> > >>> > >>>>> updated
> > >> > >> > >> > >>> > >>>>> > > port of
> > >> > >> > >> > >>> > >>>>> > > > > > > gcc and
> > >> > >> > >> > >>> > >>>>> > > > > > > binutils to i386-plan9 from
> > >> > >> > >> > >>> https://marcus.biz.tm/jail/ :
> > >> > >> > >> > >>> > >>>>> > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > binutils-2_22-plan9
> > >> > >> > >> > >>> > >>>>> > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > gcc-4.8-plan9
> > >> > >> > >> > >>> > >>>>> > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > Hopefully there are some clues
> there
> > >> to
> > >> > >> help
> > >> > >> > >> making a
> > >> > >> > >> > >>> > >>>>> working
> > >> > >> > >> > >>> > >>>>> > > current
> > >> > >> > >> > >>> > >>>>> > > > > > > i386-plan9 cross
> > >> > >> > >> > >>> > >>>>> > > > > > > compiler.
> > >> > >> > >> > >>> > >>>>> > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > On Tue, Jun 02, 2020 at 02:36:38PM
> > >> +0200,
> > >> > >> Jens
> > >> > >> > >> Staal
> > >> > >> > >> > >>> wrote:
> > >> > >> > >> > >>> > >>>>> > > > > > > > Dear all,
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > > First a bit of background:
> > >> > >> > >> > >>> > >>>>> > > > > > > > I am currently attempting to
> update
> > >> the
> > >> > >> old
> > >> > >> > >> > >>> i386-plan9
> > >> > >> > >> > >>> > >>>>> target for
> > >> > >> > >> > >>> > >>>>> > > > > > > binutils/gcc
> > >> > >> > >> > >>> > >>>>> > > > > > > > in order to generate a modern
> cross
> > >> > >> compiler
> > >> > >> > >> > >>> targeting
> > >> > >> > >> > >>> > >>>>> plan9.
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > > I have extracted the changes
> done
> > >> to gcc
> > >> > >> 3.0
> > >> > >> > >> and
> > >> > >> > >> > >>> > >>>>> binutils 2.11.2
> > >> > >> > >> > >>> > >>>>> > > > > from:
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> https://9p.io/sources/extra/gcc/
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > > My binutils and gcc attempts
> can be
> > >> > >> found at:
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> https://github.com/staalmannen/gcc
> > >> > >> > >> > >>> > >>>>> > > > > > > > branch plan9 : porting attempt
> to
> > >> > >> current gcc
> > >> > >> > >> (10)
> > >> > >> > >> > >>> > >>>>> > > > > > > > branch gcc-3.0-plan9 : original
> port
> > >> > >> added to
> > >> > >> > >> the
> > >> > >> > >> > >>> 3.0
> > >> > >> > >> > >>> > >>>>> branch
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> https://github.com/staalmannen/binutils-gdb
> > >> > >> > >> > >>> > >>>>> > > > > > > > branch plan9: porting attempt to
> > >> current
> > >> > >> > >> binutils
> > >> > >> > >> > >>> (2.34)
> > >> > >> > >> > >>> > >>>>> > > > > > > > branch binutils-2_11-plan9 :
> > >> original
> > >> > >> port
> > >> > >> > >> added
> > >> > >> > >> > >>> to the
> > >> > >> > >> > >>> > >>>>> 2.11
> > >> > >> > >> > >>> > >>>>> > > branch
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > > Definitely not just a
> copy-and-paste
> > >> > >> endeavour
> > >> > >> > >> > >>> > >>>>> unfortunately.
> > >> > >> > >> > >>> > >>>>> > > The old
> > >> > >> > >> > >>> > >>>>> > > > > > > port
> > >> > >> > >> > >>> > >>>>> > > > > > > > almost 20 years old and some
> style
> > >> and
> > >> > >> > >> structure
> > >> > >> > >> > >>> changes
> > >> > >> > >> > >>> > >>>>> have
> > >> > >> > >> > >>> > >>>>> > > > > happened
> > >> > >> > >> > >>> > >>>>> > > > > > > in that
> > >> > >> > >> > >>> > >>>>> > > > > > > > time.
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > > I have built a binutils variant
> but
> > >> when
> > >> > >> I
> > >> > >> > >> try to
> > >> > >> > >> > >>> > >>>>> compile a
> > >> > >> > >> > >>> > >>>>> > > "Hello.S"
> > >> > >> > >> > >>> > >>>>> > > > > > > with
> > >> > >> > >> > >>> > >>>>> > > > > > > > i386-lucent-plan9-as and
> execute it
> > >> > >> under i386
> > >> > >> > >> > >>> 9front, I
> > >> > >> > >> > >>> > >>>>> get an
> > >> > >> > >> > >>> > >>>>> > > error
> > >> > >> > >> > >>> > >>>>> > > > > > > about
> > >> > >> > >> > >>> > >>>>> > > > > > > > incorrect file header, so
> something
> > >> is
> > >> > >> wrong.
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > > What I learned from looking at
> the
> > >> old
> > >> > >> port
> > >> > >> > >> and
> > >> > >> > >> > >>> trying
> > >> > >> > >> > >>> > >>>>> to adapt
> > >> > >> > >> > >>> > >>>>> > > it to
> > >> > >> > >> > >>> > >>>>> > > > > > > compile in
> > >> > >> > >> > >>> > >>>>> > > > > > > > a modern binutils background is
> > >> that a
> > >> > >> lot of
> > >> > >> > >> it is
> > >> > >> > >> > >>> > >>>>> basically
> > >> > >> > >> > >>> > >>>>> > > copied
> > >> > >> > >> > >>> > >>>>> > > > > > > from the
> > >> > >> > >> > >>> > >>>>> > > > > > > > generic aout target (I have some
> > >> > >> uncommitted
> > >> > >> > >> > >>> changes
> > >> > >> > >> > >>> > >>>>> where I am
> > >> > >> > >> > >>> > >>>>> > > > > updating
> > >> > >> > >> > >>> > >>>>> > > > > > > the
> > >> > >> > >> > >>> > >>>>> > > > > > > > obj-plan9 files to modern
> modified
> > >> > >> obj-aout
> > >> > >> > >> files
> > >> > >> > >> > >>> with
> > >> > >> > >> > >>> > >>>>> the
> > >> > >> > >> > >>> > >>>>> > > original
> > >> > >> > >> > >>> > >>>>> > > > > > > changes
> > >> > >> > >> > >>> > >>>>> > > > > > > > applied).
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > > So to my question: what are the
> > >> > >> differences
> > >> > >> > >> > >>> between the
> > >> > >> > >> > >>> > >>>>> plan9
> > >> > >> > >> > >>> > >>>>> > > file
> > >> > >> > >> > >>> > >>>>> > > > > > > format and
> > >> > >> > >> > >>> > >>>>> > > > > > > >  what binutils would see as
> generic
> > >> aout?
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > > > PS. If someone would be
> interested
> > >> to
> > >> > >> help
> > >> > >> > >> out,
> > >> > >> > >> > >>> you are
> > >> > >> > >> > >>> > >>>>> more than
> > >> > >> > >> > >>> > >>>>> > > > > > > welcome ;) DS.
> > >> > >> > >> > >>> > >>>>> > > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > > > >
> > >> ------------------------------------------
> > >> > >> > >> > >>> > >>>>> > > > > > > 9fans: 9fans
> > >> > >> > >> > >>> > >>>>> > > > > > > Permalink:
> > >> > >> > >> > >>> > >>>>> > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > >
> > >> > >> > >> > >>> > >>>>>
> > >> > >> > >> > >>>
> > >> > >> > >>
> > >> > >>
> > >>
> https://9fans.topicbox.com/groups/9fans/T0d486ca41e37210d-M8f436975b50638e15cf50fdd
> > >> > >> > >> > >>> > >>>>> > > > > > > Delivery options:
> > >> > >> > >> > >>> > >>>>> > >
> > >> > >> https://9fans.topicbox.com/groups/9fans/subscription
> > >> > >> > >> > >>> > >>>>> > > > > > >
> > >> > >> > >> > >>> > >>>>> > > > >
> > >> > >> > >> > >>> > >>>>> > >
> > >> > >> > >> > >>> > >>>>>
> > >> > >> > >> > >>> > >>>>
> > >> > >> > >> > >>>
> > >> > >> > >> > >>
> > >> > >> > >>
> > >> > >> > >
> > >> > >>
> > >> > >>
> > >> > >>
> > >>
> > >
>

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Re: [9fans] plan9 vs aout

[Jens Staal]

I have now added 2 more branches for reference from the updated port of gcc and
binutils to i386-plan9 from https://marcus.biz.tm/jail/ :

binutils-2_22-plan9

gcc-4.8-plan9

Hopefully there are some clues there to help making a working current i386-plan9 cross
compiler.


On Tue, Jun 02, 2020 at 02:36:38PM +0200, Jens Staal wrote:
> Dear all,
> 
> First a bit of background:
> I am currently attempting to update the old i386-plan9 target for binutils/gcc
> in order to generate a modern cross compiler targeting plan9.
> 
> I have extracted the changes done to gcc 3.0 and binutils 2.11.2 from:
> https://9p.io/sources/extra/gcc/
> 
> My binutils and gcc attempts can be found at:
> 
> https://github.com/staalmannen/gcc
> branch plan9 : porting attempt to current gcc (10)
> branch gcc-3.0-plan9 : original port added to the 3.0 branch
> 
> https://github.com/staalmannen/binutils-gdb
> branch plan9: porting attempt to current binutils (2.34)
> branch binutils-2_11-plan9 : original port added to the 2.11 branch
> 
> Definitely not just a copy-and-paste endeavour unfortunately. The old port
> almost 20 years old and some style and structure changes have happened in that
> time.
> 
> I have built a binutils variant but when I try to compile a "Hello.S" with
> i386-lucent-plan9-as and execute it under i386 9front, I get an error about
> incorrect file header, so something is wrong.
> 
> What I learned from looking at the old port and trying to adapt it to compile in
> a modern binutils background is that a lot of it is basically copied from the
> generic aout target (I have some uncommitted changes where I am updating the
> obj-plan9 files to modern modified obj-aout files with the original changes
> applied).
> 
> So to my question: what are the differences between the plan9 file format and
> what binutils would see as generic aout? 
> 
> 
> PS. If someone would be interested to help out, you are more than welcome ;) DS.
> 
> 
> 
> 
> 
> ------------------------------------------
> 9fans: 9fans
> Permalink: https://9fans.topicbox.com/groups/9fans/T0d486ca41e37210d-M9cbbb545155e2a1fd2addc16
> Delivery options: https://9fans.topicbox.com/groups/9fans/subscription