From mboxrd@z Thu Jan 1 00:00:00 1970 From: yoann padioleau Content-Type: multipart/alternative; boundary="Apple-Mail=_06566EBA-BA9A-4F84-B23C-D3DA48AD11CF" Message-Id: <98136872-0209-4836-B147-4926629CD573@gmail.com> Date: Fri, 13 Jan 2017 12:29:29 -0800 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Mime-Version: 1.0 (Mac OS X Mail 8.1 \(1993\)) Subject: [9fans] fail to crosscompile Rasperry Pi Miller's kernel Topicbox-Message-UUID: b1afa742-ead9-11e9-9d60-3106f5b1d025 --Apple-Mail=_06566EBA-BA9A-4F84-B23C-D3DA48AD11CF Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi, I am trying to compile the plan9 kernel for the Rasperry pi from Richard Miller. I am using from MacOSX the kencc toolchain https://code.google.com/hosting/moved?project=3Dken-cc = now https://bitbucket.org/plan9-from-bell-labs/9-cc/ = (actually I use my own simplified fork: https://github.com/aryx/fork-kencc ) I am able to compile/link the default bcm/ kernel with this distribution: https://github.com/0intro/plan9/ = I am also able to compile/link the latest kernel from richard miller http://9p.io/magic/webls?dir=3D/sources/contrib/miller/9/bcm = The problem is that when I boot it on my physical Raspberry Pi 1, I just get a blue screen. I don=E2=80=99t get the Plan9 console = greeting, nothing. The call to fbinit in bcm/vcore.c is working because the memset in fbinit is working (hence the blue screen). But calls following fbinit do not work. I tracked it down to a call to malloc() in allocmemimage in libmemdraw. In fact, if I do a call to malloc() in main.c before the call to screeninit, nothing works (I get a gradient picture on the screen). Does any of you have any idea what could be the cause of the problem? = The linker 5l in kencc does not support the -f linking option, but I = think none of the code in pool.c or libmemdraw use float/double at this = point. Is there some important patches to 5l or 5c I am missing in kencc/?=20 Note that the 9pi image at = http://9p.io/magic/webls?dir=3D/sources/contrib/miller = is working on = my Raspberry Pi. So this is not a problem in my Raspberry. I am also = using the official plan9 distribution https://github.com/0intro/plan9/ = from Jan 2015, so I guess the problem = has to be in kencc/. --Apple-Mail=_06566EBA-BA9A-4F84-B23C-D3DA48AD11CF Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi,

I am = trying to compile the plan9 kernel for the Rasperry pi
from Richard Miller. I am using from MacOSX the kencc = toolchain
https://code.google.com/hosting/moved?project=3Dken-cc
now
https://bitbucket.org/plan9-from-bell-labs/9-cc/
(actually I use my own simplified fork:
https://github.com/aryx/fork-kencc
)

I = am able to compile/link the default bcm/ kernel
with = this distribution: https://github.com/0intro/plan9/
I = am also able to compile/link the latest kernel from richard = miller
http://9p.io/magic/webls?dir=3D/sources/contrib/miller/9/bcm

The problem = is that when I boot it on my physical Raspberry Pi 1,
I just get a blue screen. I don=E2=80=99t get the Plan9 = console greeting,
nothing.

The call to fbinit in bcm/vcore.c is = working because
the memset in fbinit is working = (hence the blue screen).
But calls following fbinit = do not work. I tracked it down
to a call to = malloc() in allocmemimage in libmemdraw.
In fact, = if I do a call to malloc() in main.c before the call to
screeninit, nothing works (I get a gradient picture on the = screen).

Does = any of you have any idea what could be the cause of the problem? The = linker 5l in kencc does not support the -f linking option, but I think = none of the code in pool.c or libmemdraw use float/double at this = point.
Is there some important patches to 5l or 5c = I am missing in kencc/? 

Note that the 9pi image at http://9p.io/magic/webls?dir=3D/sources/contrib/miller = ;is working on my Raspberry Pi. So this is not a problem in my = Raspberry. I am also using the official plan9 distribution https://github.com/0intro/plan9/ from Jan 2015, so I = guess the problem has to be in kencc/.







= --Apple-Mail=_06566EBA-BA9A-4F84-B23C-D3DA48AD11CF--