Hi all,
These are approximate instructions for installing Lucid on an IGEPv2. It
uses the kernel recommended on the IGEP site because this supports the
SD card. I'm sure an ubuntu kernel will be fine later. At the end, you
will have an SD card that will boot the IGEPv2 board with no external
intervention or devices.
This recipe is derived from here:
http://labs.igep.es/index.php/How_to_get_the_Ubuntu_distribution
Andrew
----------------------
sudo apt-get install rootstock uboot-mkimage qemu
[The next step gives you the kernel, initrd, and rootfs all in one.
Ideally I would have it install lxde now, to match the "demo" OS that
came with the board, but I found that it hung. Create minimal install
for now, and install lxde later, once the board is running.]
sudo rootstock --fqdn ubuntu --login jdoe --password letmein --imagesize
2G \
--seed
wget,nano,linux-firmware,wireless-tools,usbutils,openssh-server,openssh-client
--dist lucid \
--serial ttyS2 --components "main universe multiverse" \
--kernel-image
http://www.rcn-ee.net/deb/lucid/v2.6.33.5-l3/linux-image-2.6.33.5-l3_1.0luc…
mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 -n
"Linux" -d vmlinuz-2.6.33.5-l3 uImage
mkimage -A arm -O linux -T ramdisk -C none -a 0 -e 0 -n initramfs -d
initrd.img-2.6.33.5-l3 uInitrd
cat > boot.source < EOF
fatload mmc 0:1 0x80000000 uImage
fatload mmc 0:1 0x82000000 uInitrd
setenv bootargs vram=12M omapfb.mode=dvi:1280x720MR-16@60
root=/dev/mmcblk0p2 console=ttyS2,115200n8 fixrtc
bootm 0x80000000 0x82000000
EOF
mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n "Boot Script" -d
boot.source boot.ini
[Format the SD card with two paritions, mmcblk0p1 small fat-16 (label
"boot"), and mmcblk0p2 large ext3 (label "rootfs").]
cp uImage uInitrd boot.ini /media/boot
sudo tar xzpf armel-rootfs-<date>.tgz -C /media/rootfs/
ln -s ../init.d/ssh /media/rootfs/etc/rc2.d/S01ssh
[Set up /media/rootfs/etc/network/interfaces - you'll need an "auto
eth0" line and something to go with it]
[Boot the target, log in (jdoe/letmein)]
sudo apt-get install lxde gdm
[Actually, I only installed the lxde desktop so I could run it remotely
using Xnest. If you want a graphical login on the video output, only
then do you need gdm also. Not installing gdm means that Xorg doesn't
start at boot time and eat memory and cycles.]
Minutes from the toolchain working group stand up call are at:
https://wiki.linaro.org/WorkingGroups/ToolChain/Meetings/2010-07-28
-- Michael
== Attendees ==
||<rowbgcolor="#333333" rowstyle="color: white; font-weight:
bold;"style="text-align: center;">Name ||<style="text-align:
center;">Email ||<style="text-align: center;">IRC Nick ||
|| Andrew Stubbs || andrew.stubbs(a)linaro.org || ams ||
|| Chung-Lin Tang || cltang(a)codesourcery.com || cltang ||
|| Julian Brown || julian(a)codesourcery.com || jbrown ||
|| Loïc Minier || loic.minier(a)linaro.org || lool ||
|| Michael Hope || michael.hope(a)linaro.org || michaelh ||
|| Richard Earnshaw || richard.earnshaw(a)arm.com || rearnshaw ||
|| Scott Bambrough || scott.bambrough(a)linaro.org || scottb ||
|| Ulrich Weigand || ulrich.weigand(a)linaro.org || uweigand ||
|| Yao Qi || yao.qi(a)linaro.org || yao ||
== Agenda ==
* Stand-up call - progress, what's next, and problems
== Action Items from this Meeting ==
* ACTION: Richard: will send Michael an email on the sync primitives
* ACTION: Richard: will see where the str* assembler routines landed
== Action Items from Previous Meeting ==
== Minutes ==
* Andrew:
* Has received a IGEPv2 board and is trying to get it working
* Having trouble with the maverick chroot
* Modifying the CSL build system to use bzr
* Modifying the CSL build system to try the Ubuntu glibc
* 4.5 merges will start going in soon
* Chung-Lin:
* Looking at hard float
* Working on libffi. Has looked at the internals and has started the port
* Julian:
* Working on porting the 4.4 changes into 4.5
* Also has a IGEPv2 board and is working with Andrew to get it going
* Ulrich:
* Proposed the powerpc revert to doko, who is happy with that approach
* Working with upstream on [[LP:500524]]. Patch should be present in 4.4.5
* To work on the Firefox issue [[LP:604874]]
* Michael:
* Working on a continuous build
* Starting a write-up on patch tracking
* Yao
* Has looked into and reproduced [[LP:604874]]
* Will look into the assembly to see what is going on
* Richard:
* Working on the sync primitives in gcc and their use in eglibc
* ACTION: Will send Michael an email on their use
* Michael: any hand coded mem* or str* that he knows of?
* ACTION: Richard: probably present in CSL eglibc, will investigate
* Problems with the license of - want BSD as they're universal, but
glibc may require LGPL
Next call is on Monday
Hi
As some of you know I am working on cross compiler packages for Ubuntu. Those
of you who know what Emdebian is probably use their repositories for such
stuff. Thats ok - I just want to share with you what my job will bring in near
future and what I have done in last 3 months.
Since 26th April I am working for Canonical as part of Linaro project. Due to
my six years of OpenEmbedded experience I became part of Toolchain Working
Group and started work on packaging. Specification etc are listed on blueprint
page:
https://blueprints.launchpad.net/ubuntu/+spec/arm-m-cross-compilers
I started with reviewing gcc-4.4/4.5 and binutils packaging rules and merged
them as much as possible to get rid of *-cross.mk files which went bitrot a
bit. As result we got packages with debug versions of libraries, dependencies
are proper and as a bonus we got libmudflap cross compiled in case someone
needs it.
Currently I am working on bootstraping cross compiler without using dpkg-cross
converted packages (aka Emdebian way). I got it working with Ubuntu Maverick
versions and published all required patches in bugs linked to my blueprint.
Maybe it is not easy to recreate but should work when you will try.
To make it possible I also have to alter contents of *-source binary packages
from binutils/eglibc/gcc/linux to have a possibility to reuse their packaging
rules in new $ARCH-cross-compiler package on which I will work in next weeks.
And here I have a problem. How much of debian/ directory should be provided in
*-source binary packages? Minimal set just to be able to call "dpkg-
buildpackage -b" and get wanted output or rather everything just in case?
Why new $ARCH-cross-compiler package instead of Emdebian way? Think about
buildd and how they work - nothing can be done manually there so we need to
automate whole procedure.
Regards,
--
JID: hrw(a)jabber.org
Website: http://marcin.juszkiewicz.com.pl/
LinkedIn: http://www.linkedin.com/in/marcinjuszkiewicz
The Toolchain Working Group meeting notes from 2010-07-26 are now available at:
https://wiki.linaro.org/WorkingGroups/ToolChain/Meetings/2010-07-26
A copy follows.
-- Michael
= Monday 26th July 2010 =
== This month's meetings ==
<<MonthCalendar(WorkingGroups/ToolChain/Meetings,2010,07,,,,WorkingGroups/ToolChain/MeetingTemplate)>>
== Attendees ==
||<rowbgcolor="#333333" rowstyle="color: white; font-weight:
bold;"style="text-align: center;">Name ||<style="text-align:
center;">Email ||<style="text-align: center;">IRC Nick ||
|| Andrew Stubbs || andrew.stubbs(a)linaro.org || ams ||
|| Chung-Lin Tang || cltang(a)codesourcery.com || cltang ||
|| Julian Brown || julian(a)codesourcery.com || jbrown ||
|| Loïc Minier || loic.minier(a)linaro.org || lool ||
|| Marcin Juszkiewicz || marcin.juszkiewicz(a)linaro.org || hrw ||
|| Michael Hope || michael.hope(a)linaro.org || michaelh ||
|| Scott Bambrough || scott.bambrough(a)linaro.org || scottb ||
|| Ulrich Weigand || ulrich.weigand(a)linaro.org || uweigand ||
|| Yao Qi || yao.qi(a)linaro.org || yao ||
== Agenda ==
* Review action items from last meeting
* Feedback on the sprint
* Ideas at [[Internal/MichaelHope/ToolChainMockup]]
* What's next
* Our focus
* Release dates
* Hardware availability and needs
* Benchmark ideas
* Open source ones
* 'Typical' open source projects such as ffmpeg, libtheora
* Closed tests
* Next release
* Blueprint status
* Moving to public phone call
* New starter, Chung-Lin Tang
.
||<rowbgcolor="#333333" rowstyle="color: white; font-weight:
bold;"style="text-align: center;">Blueprint ||<style="text-align:
center;">Assignee ||
|| [[https://blueprints.launchpad.net/gcc-linaro/+spec/initial-4.4|Initial
delivery of Linaro GCC 4.4]] || ams ||
|| [[https://blueprints.launchpad.net/ubuntu/+spec/arm-m-cross-compilers|Cross
Compiler Packages]] || hrw ||
== Action Items from this Meeting ==
* ACTION: Michael to organise and spread next Monday's call in number
* ACTION: Michael to re-check release dates and suggest something
* ACTION: Michael to rename the intermediate milestone
* ACTION: Loic to find the Chrome OS contact name for the records
* ACTION: Ulrich to confirm PowerPC approach with Matthias
== Action Items from Previous Meeting ==
* DONE: Go to the sprint
* DONE: Loic: announcement for linaro-announce, Andrew and MLH to
review before sending
* DONE: Andrew will create release via the Launchpad milestone page
* DONE: Ulrich to summarise the GDB Thumb 2 issues and post so that
Andrew can see if CSL have already done this.
* CSL agrees that it is a problem and isn't working on it
== Minutes ==
* Reviewed the agenda
* Michael Hope is now the toolchain lead
* Calls will be shifted to a public number starting next Monday
* ACTION: Michael to organise and spread number.
* Went over release dates
* Loic suggested the second Tuesday of every month instead as it
gives the rest of working week to handle problems
* Michael would like to keep close to the FeatureFreeze/FinalRelease
dates so that announcements coincide
* ACTION: Michael to re-check dates and suggest something
* The next release, due in a week, will be skipped due to no
significant changes since last release
* ACTION: Michael to rename milestone
* Hardware availability
* CSL
* i.mx51 in their data centre
* Julian, Andrew: have IGEPv2
* Yao, Chung-Lin: will get hardware
* Loic pointed everyone to the internal hardware availability page
* Ulric: is organising hardware
* Loic wants to investigate using qemu as a buildd host
* Michael will write-up and share his hardware. Everything should
move into the data centre later
* Benchmarks
* Loic noted that we want everything in the open and reproducible,
so prefer freely usable benchmarks
* Don't want trivial benchmarks
* Most commercial benchmarks include the source but have
restrictions on sharing the results
* Michael asked for suggestions on benchmarks
* Michael to look at freely usable benchmarks such as lmbench
* Current tickets
* Yao and Michael will look at Firefox
* Ulrich is investigating the next in the list
* Michael would like to send a weekly 'State of the toolchain' update
* Consumed by linaro-dev, Ubuntu toolchain maintainers, and perhaps
others like Ubuntu kernel maintainers
* Loic suggested via Launchpad news
* Discussed communication with Ubuntu
* All notification to go via Ubuntu toolchain maintainers
* U-T-M has responsibility to pass this downstream
* Loic talked with a developer on Chrome OS
* Interested in trying the toolchain
* Currently plain GCC 4.4.1
* Require something very stable
* ACTION: Loic to find a name for the records
* General want for us to try building Chrome OS using the Linaro toolchain
* PowerPC
* Ulrich talked with Matthias at the end of the sprint
* From a Ubuntu perspective, don't want 4.5 to regress in features vs 4.4
* Revert the 4.4 PowerPC changes, keep SH and MIPS. Ubuntu doesn't
support SH or MIPS so no change
* ACTION: Ulrich to confirm with Matthias
Next call is on Wednesday
The armel build that doko kicked off some time ago has completed. I've
gone through and categorised the different failures and created
tickets as appropriate. Latest results are here:
https://wiki.linaro.org/MichaelHope/Sandbox/BuildFailures
-- Michael
Also available at
https://wiki.linaro.org/WorkingGroups/ToolChain/Meetings/2010-07-16
= Friday 16th July 2010 =
== Attendees ==
||<rowbgcolor="#333333" rowstyle="color: white; font-weight:
bold;"style="text-align: center;">Name ||<style="text-align:
center;">Email ||<style="text-align: center;">IRC Nick ||
|| Loïc Minier || loic.minier(a)linaro.org || lool ||
|| Andrew Stubbs || andrew.stubbs(a)linaro.org || ams ||
|| Michael Hope || michael.hope(a)linaro.org || mhope ||
|| Ulrich Weigand || ulrich.weigand(a)linaro.org || uweigand ||
|| Yao Qi || yao.qi(a)linaro.org || yao ||
|| Marcin Juszkiewicz || marcin.juszkiewicz(a)linaro.org || hrw ||
== Agenda ==
* Review action items from last meeting
* Personal work plan for the sprint
* Release status
== Action Items from this Meeting ==
* ACTION: (everyone) note down what you plan to do so that others can find you
* ACTION: Loic: announcement for linaro-announce, Andrew and MLH to
review before sending
* ACTION: Andrew will create release via the Launchpad milestone page
* ACTION: Ulrich to summarise and post so that Andrew can see if CSL
have already done this
== Action Items from Previous Meeting ==
* (None)
== Minutes ==
* What do do during the sprint
* See https://wiki.linaro.org/Events/2010-07-PlatformSprint/ToolChainWG
* Group discussion topics in the morning
* Free to make own arrangements
* ACTION: (everyone) note down what you plan to do so that others can find you
* Release status
* doko confirmed that the tarball was OK
* Andrew: nothing known remaining for the release
* ACTION: Loic: announcement for linaro-announce, Andrew and MLH to
review before sending
* ACTION: Andrew will create release via the Launchpad milestone page
* Andrew
* nothing left to do except make things public
* looking at FTBFS issues
* looking at getting the CSL test suite running with Linaro
* Michael
* Still reading, making a list of questions for next week
* Ulrich
* looking into one of the ICE in reload. Andrew also looking.
Ulrich will take over this bug
* GDB build failures: noticed one significant root problem due to
prologue tracing
* GDB understands ARM and Thumb, but not Thumb 2
* Loic: plan for GDB Thumb 2 porting
* ACTION: Ulrich to summarise and post so that Andrew can see if
CSL have already done this
* Specifically gnu-linaro-tools(a)codesourcery.com +
linaro-toolchain(a)list.linaro.org + Pedro Alves + Dan Jacobowitz
* Loic: Ubuntu has a set of detached debug symbols
(http://ddebs.ubuntu.com/) which will help as reduces need for
prologue parsing
* Yao
* merging internal CSL 4.4 patches into 4.5
* looking into Ubuntu FTBFS, trying to reproduce
* Loic: would like a list of done vs remaining to get idea for progress
* Andrew: would prefer to do it in a weekly status report
* Marcin
* Working on the staging of the GCC build
* now combining into a build from scratch
* has stage 1 for most cases
* Loic
* looking at hard float
* interesting case of performance vs specialisation
* discussion with Andrew re: tracking changes upstream. Will
discuss at sprint
-- Michael
Hi Richard,
Am I right in understanding that fsf's primary objection to
-mimplicit-it is the resulting unpredictability of the size of the
assembler output for asm blocks? Note that the assmbler output size
is _already_ unpredictable: what about the variable size of Thumb-2
instructions already, and what about use of assembler directives such
as:
#define nops(count) asm( \
".rept " #count "\n\t"
"nop\n\t"
".endr" \
)
Presumably this will defeat GCC's literal pool placement on any
architecture which has literal pools. Indeed, we can come with an
inexhaustible supply of such cases: it's an inevitable result of the
separation between GCC and the assembler.
If for Thumb-2 I assume we already have a heuristic that attempts to
count the number of instructions and predicts the maximum size of the
asm block as n*4 bytes (where n is the instruction count), would it be
feasible to estimate a bound of n*6 bytes if using -mimplicit-it? Or,
do we dump the literal before the asm block to be on the safe side
(and if so, why doesn't this work equally well when using
-mimplicit-it?)
Re the suggestion that inline asm should be "fixed" to include
explicit IT instructions, do you know a practical way to do this?
My concern is that with GCC -marm, the inline asm is passed as-is to
be interpreted non-unified syntax (for backwards compatibility
purposes), whereas with -march>=armv6t2 -mthumb, the asm is passed
(again as-is) to be interpreted in unified syntax. But with explicit
IT blocks, it's impossible to be compatible with both syntaxes if my
understanding is correct: Am I right in thinking that current GNU as
in non-unified syntax mode, and indeed legacy versions of the tools
will treat the IT instructions as an error and barf? Can you think of
a way of working round this?
The best I can think of right now is ghastly preprocessor stuff along
the lines of
#ifdef __thumb__ /* or more correctly __thumb2__ ? */
#define __asm_it_generic(mnemonic,cond) #mnemonic " " #cond "\n\t"
#else
#define __asm_it_generic(mnemonic,cond) /* expands to nothing */
#endif
#define __it(cond) __asm_it_generic(it,cond)
#define __ite(cond) __asm_it_generic(ite,cond)
/* ... */
asm(
__it(eq)
"moveq r0, #0\n\t"
__ite(eq)
"bleq func1\n\t"
"blne func2\n\t"
);
An alternative, if we are happy to "fix" source packages in a way
which breaks building them with older tools, is to pass unified
assembler assembler in unified syntax too. But that would require
some work in the code gen backend for arm if I understand correctly.
But it's a huge task to port everything and some upstream projects may
not accept the changes at all. My concern is that without some
transitional approach, there's simply too much existing code for this
to be viable.
Do you know when unified assmbler support was introduced in fsf?
Cheers
---Dave
As some of you know I came to Linaro from OpenEmbedded project. In OE we cross
compiled by default and to make it more easy we had one nice addon to gcc.
When host includes were used gcc errored out with "CROSS COMPILE BADNESS:
/usr/include used" style message. Patch is present in metadata:
http://cgit.openembedded.org/cgit.cgi/openembedded/tree/recipes/gcc/gcc-4.4…
no-host-includes.patch
Some time ago replacement was announced on OE mailing list:
http://thread.gmane.org/gmane.comp.handhelds.openembedded/34169
In that thread Khem Raj mentioned -Wno-poison-system-directories which is
available in CSL toolchains.
I would like to get that functionality in our cross compiler as this nicely
shows problems in packages. I got hit by that in eglibc when it fails with:
In file included from ../ports/sysdeps/arm/libc-tls.c:20:0:
../csu/libc-tls.c: In function ‘__libc_setup_tls’:
../csu/libc-tls.c:194:1: error: ‘__ARM_NR_set_tls’ undeclared (first use in
this function)
../csu/libc-tls.c:194:1: note: each undeclared identifier is reported only
once for each function it appears in
just because unistd.h used from host instead from target includes.
Regards,
--
JID: hrw(a)jabber.org
Website: http://marcin.juszkiewicz.com.pl/
LinkedIn: http://www.linkedin.com/in/marcinjuszkiewicz
