[Barrelfish-users] requesting for Help
ben eslami
beneslami72 at gmail.com
Sat Jun 2 13:16:59 CEST 2018
Hi all,
I have decided to run simple Hello World program using IDC.
I follow the document 'TN-018-PracticalGuide' to implement the simple
scenario. but I have some questions and one problem that I face every time
I do procedures:
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Question 1:First of all, I've created a folder in usr/ directory called
myapp. Inside of it, I have some C files and a Hakefile such that :
myapp.c -> main of my program
start_server.c -> server code
start_client.c -> client code
Hakefile
and menu.lst.
Should I type all these C codes just in one file?
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Question 2: I have to include some files to my codes as the document says
like `barrelfish.h' and 'nameservice_client.h`. As my codes are in
usr/myapp/ directory, should I include these headers like this
#include <../../include/barrelfish/barrelfish.h>
#include <../../include/barrelfish/nameservice_client.h>
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Problem: When I complete all the documents instructions, I run
`../hake/hake.sh -s .. -a x86_64' in build directory, but I see outputs
like this:
Makefile:7127:
x86_64/usr/myapp/_for_app_myapp/myapp_flounder_bindings.o.depend: No such
file or directory
Makefiel:7221: x86_64/usr/myapp/_for_app_myapp/start_client.o.depend: No
such file or directory
Makefiel:7238: x86_64/usr/myapp/_for_app_myapp/start_server.o.depend: No
such file or directory
make:*** No rule to make target 'x86_64/include/if/myapp_defs.h', needed by
'x86_64/usr/myapp/_for_app_myapp/start_server.o.depend'. stop.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
I assume myapp_defs.h is not created when I define an interface called
hello.if and append "hello" in if/Hakefile.
I would be happy if you could help me.
Thank you
On Wed, Apr 4, 2018 at 11:21 AM, Reto Achermann <reto.achermann at inf.ethz.ch>
wrote:
> Dear Ben,
>
> please always write to the list. Answers inline below.
>
> -- Reto
>
> On 04/03/2018 11:33 AM, ben eslami wrote:
>
>> Dear Reto
>> I am so sorry to email you directly, but I've stuck in a bad situation.
>> I understand what you said about running an app on Barrelfish, but there
>> are still some problems.
>>
>> 1- I wrote a Hakefile in 'usr/example/xmpl-hello/Hakefile' like this:
>> [ build application {target = {"examples/xmpl-hello", cFiles =
>> ["hello.c"] } }
>>
>
> seems good to me.
>
>
>> 2- I need to tell Hake to include this when building the Makefile. It
>> means I have to add the created Hakefile to 'platforms/Hakefile' in order
>> to automatically build the app. So the problem is where should I put the
>> address of the created Hakefile in 'platform/Hakefile' ? There are several
>> fields and I can see the address of the created Hakefile in field
>> 'modules_xmpl'. So I assume there is no need to add anything in
>> 'platform/Hakefile'. and run '../hake/hake.sh -s .. -a x86_64' in build dir.
>>
>
> Yes, you are right, if you use examples/xmpl-hello, this is already added
> in modules_xmpl. The command for runnin hake is fine too. Yous should be
> able to do make x86_64/sbin/examples/xmpl-hello now.
>
> In general, for new modules, you can add just them to 'modules_x86_64'.
> (for x86_64)
>
> 3- Weh I run '../hake/hake.sh -s .. -a x86_64' , there is a Makefile
>> appeared in build directory. I can see the path
>> './x86_64/usr/examples/xmpl-hello/_for_app_examples/xmpl-hello/hello.o'
>> and other similar paths for hello.s and hello.o.depend inside Makefile. So
>> I assume the app is ready to be built. Now I run 'make -j 4 X86_64_Basic'
>>
>
> Not exactly, when you look at the platform directive in the
> platforms/Hakefile, you see that the 'modules_xmpl' are part of the
> X86_64_Full. So you need to run make X86_64_Full in order to build the
> examples.
>
>
>
>> 4-Now in this stage, I look for built/platform/x86/menu.lst.x86_64, but
>> there is nothing there until I run 'make qemu_x86_64'. I realized that
>> menu.lst is built after running 'make qemu_x86_64'. So I open
>> 'built/platform/x86/menu.lst.x86_64' and add 'module >
>>
> /x86_64/usr/examples/xmpl-hello/_for_app_examples/xmpl-hello
> /hello.o.depend'.
>
> No, you need to add the targets as defined in the hake file.
>
> module /x86_64/sbin/examples/xmpl-hello
>
> Also note, that make qemu_x86_64 will only build the modules defined in
> modules_x86_64 and modules_generic.
>
>
>> I understand your instructions as like above but I got nothing. I
>> was wondering if you could explain in more detail please.
>>
>> Regards,
>> Ben
>>
>>
>> On Mon, Apr 2, 2018 at 11:44 PM, Reto Achermann <
>> reto.achermann at inf.ethz.ch <mailto:reto.achermann at inf.ethz.ch>> wrote:
>>
>> Dear Ben,
>>
>> When you like run something on Barrelfish a few things need to be in
>> place
>>
>> 1) You need to write a Hakefile, which contains the target to be
>> built and how it is built.
>>
>> 2) Then you need to tell Hake to include this when building the
>> Makefile, This is done by re-running hake. After this step you can
>> actually type 'make x86_64/sbin/<target>' assuming you want to build
>> it for x86.
>>
>> 2) In order to have it build automatically when you type 'make
>> X86_64_Basic' or 'make qemu_x86_64' you need to add it to the list
>> of targets in platforms/Hakefile.
>>
>> 3) You need to tell grub or qemu to load your binary. For this you
>> will need to add it to the menu.lst used by grub or qemu. In case of
>> qemu, its located in $build/platforms/x86/ (again for x86 platforms)
>>
>> 4) then your program will either run directly after Barrelfish has
>> booted or you can type <target> in Fish.
>>
>> -- Reto
>>
>>
>>
>> On 02/04/18 18:58, ben eslami wrote:
>>
>> There is some examples in usr/examples/. As a first step, I want
>> to run xmpl-hello.
>> -what I should do is first I should introduce xmpl-hello to
>> Hakefile in platform/Hakefile, but I can see "modules_xmpl" that
>> contains all of examples including xmpl-hello. So I assume there
>> is no need to add xmpl-hello to the Hakefile. Am I right or not?
>> - The second thing I should do is to add "module
>> build/x86_64/sbin/examples/xmpl-hello" to
>> build/platform/x86/menu.lst.x86_64, but there is nothing in
>> build/x86_64/sbin/examples. Should I copy examples from
>> usr/examples to build/x86_64/sbin/examples ??
>>
>> Could anyone pleeeaase help me ?
>>
>> On Mon, Apr 2, 2018 at 4:13 PM, ben eslami
>> <beneslami72 at gmail.com <mailto:beneslami72 at gmail.com>
>> <mailto:beneslami72 at gmail.com <mailto:beneslami72 at gmail.com>>>
>> wrote:
>>
>> Hi
>> Can anyone please help me to run "hello world" in BarrelFish?
>> I think the tutorial is not up to date.
>>
>> Thanks
>>
>> On Sat, Mar 17, 2018 at 6:13 PM, ben eslami
>> <beneslami72 at gmail.com <mailto:beneslami72 at gmail.com>
>> <mailto:beneslami72 at gmail.com
>> <mailto:beneslami72 at gmail.com>>> wrote:
>>
>> -in the file platform/Hakefile, there are some
>> sections. In section of
>> modules_common, I should add the following line
>> "/sbin/examples/xmpl-hello", but in section
>> modules_xmpl, the mentioned
>> line exists. Is this correct or I should add in the
>> sections of
>> "modules_common" and "modules_x86_64"
>>
>> -in the file build/platform/x86/menu.lst.x86_64, I
>> added the following
>> line " module /x86_64/sbin/examples/xmpl-hello in the
>> General user
>> domain section.
>>
>> "../hake/hake.sh -s .. -a x86_64" and "make -j 4
>> X86_64_Basic" are run
>> without error. But "make qemu_x86_64" encounters this
>> error:
>> Failed to open file 'x86_64/sbin/examples/xmpl-hello
>>
>> what should I do now ?
>>
>> On Sat, Mar 17, 2018 at 3:00 PM, Joel Busch
>> <buschjo at student.ethz.ch <mailto:buschjo at student.ethz.ch>
>> <mailto:buschjo at student.ethz.ch
>>
>> <mailto:buschjo at student.ethz.ch>>> wrote:
>>
>> Hello Ben
>>
>> This is actually one I can help with I think,
>> because I ran into
>> some of the same roadblocks.
>>
>> symbolic_targets.mk <http://symbolic_targets.mk>
>> <http://symbolic_targets.mk> does no longer
>> exists, instead you can add modules to the file
>> platforms/Hakefile
>> there are different sections just make sure you use
>> the one that's
>> generic or the one specific to the architecture you
>> want to run on.
>>
>> The menu.lst is now platform specific and you can
>> either change the
>> one generated during hake in
>> build/platforms/<arch>/menu.ls <http://menu.ls>
>> <http://menu.ls>t.<plat> or the one that is read
>> during the hake
>> process in hake/menu.lst.<plat>, in your case
>> <arch> is x86 and
>> <plat> is x86_64.
>>
>> And yes the make target sim doesn't exist anymore
>> and qemu_x86_64 is
>> what you want to use instead.
>>
>> Best Regards,
>> Joel Busch
>>
>>
>> On 17.03.2018 11:10, ben eslami wrote:
>>
>> Dear folks,
>> -after booting Barrelfish, I tend to run "hello
>> world". According
>> to
>> "http://wiki.barrelfish.org/Programming_for_Barrelfish
>> <http://wiki.barrelfish.org/Programming_for_Barrelfish>
>> <http://wiki.barrelfish.org/Pr
>> ogramming_for_Barrelfish
>> <http://wiki.barrelfish.org/Programming_for_Barrelfish>>",
>> To get
>> Hake to include a target for the hello world
>> program in the
>> generated Makefile, we must first add the
>> target to the
>> symbolic_targets.mk <http://symbolic_targets.mk>
>> <http://symbolic_targets.mk> file, located in
>> the build directory. But I don't have this
>> file. should I create
>> it first?
>>
>> -Suppose I created "symbolic_targets.mk
>> <http://symbolic_targets.mk>
>> <http://symbolic_targets.mk>" in build/ , then
>> I did
>> "../hake/hake.sh -s .. -a x86_64" in build/
>> directory. After
>> this, i run "make -j 8 X86_64_Basic" to compile
>> Hello World file.
>> But fir I should append "module
>> /x86_64/sbin/examples/xmpl-hello"
>> in menu.lst, but I don't see any file named
>> menu.lst either.
>> Should I create this first also ?
>>
>> -After all of these, I should run make sim.
>> Does this mean that I
>> should run "make qemu_x86_64?
>>
>> Thank you
>>
>>
>>
>>
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> --
> Reto Achermann,
> http://people.inf.ethz.ch/acreto
>
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