Re: Want to run L4Re on Raspberry PI.

Hi,

you need to have the mkimage tool available, which is typically
available through the u-boot-tools package (or similar).

For the other error, please disable Virtualization support in the Fiasco
configuration. The raspberry pi does not support hardware-assisted
virtualization.


Adam

On Wed May 29, 2019 at 21:27:35 +0000, Lei Zhou wrote:
> Another error I'm running into is at last step to generate bootable uimage.
> 
> $make E=hello uimage MODULE_SEARCH_PATH="${PWD}/../../kernel/fiasco/build-ukernel-pi3" PLATFORM_TYPE=rpi_b
> 
> I have two questions:
>    1.   What RAM_BASE should I pass in make cmdline? or leave it as is?
>    2.  Seems missing mkimage tool in the src tree.  I used repomgr pulling all the source automatically. What did I miss here?
> 
> ------------------------------------------------------------------------------------------------------------------------------------------------
> make[1]: Entering directory '/home/lezhou/workspace/l4re/src/l4'
> =========== Updating RAM_BASE for platform rpi_b to 0x0 =========
>   ... Regenerating RAM_BASE settings
>   [sigma0] ==> Linking sigma0
>   [sigma0] ==> sigma0 built
>   [sigma0] ==> Installing sigma0 to local build-tree
>   [moe] ==> Linking moe
>   [moe] ==> moe built
>   [moe] ==> Installing moe to local build-tree
> /home/lezhou/workspace/l4re/src/l4/pkg/bootstrap/server/src/Make.rules:263: *** mkimage(mkimage) host tool missing, cannot build bootstrap.uimage/itb.  Stop.
> ../../../../mk/binary.inc:149: recipe for target '/home/lezhou/workspace/l4re/src/l4/build-pi3/pkg/bootstrap/server/src/OBJ-arm64_armv8a' failed
> make[2]: *** [/home/lezhou/workspace/l4re/src/l4/build-pi3/pkg/bootstrap/server/src/OBJ-arm64_armv8a] Error 2
> Makefile:537: recipe for target 'uimage' failed
> make[1]: *** [uimage] Error 2
> make[1]: Leaving directory '/home/lezhou/workspace/l4re/src/l4'
> Makefile:6: recipe for target 'do-all-make-goals' failed
> make: *** [do-all-make-goals] Error 2
> -------------------------------------------------------------------------------------------------------------------------------------------------------------
> 
> Thanks,
> Lei
> 
> ________________________________________
> From: Lei Zhou
> Sent: Wednesday, May 29, 2019 4:39 PM
> To: Paul Boddie; [email protected]
> Subject: RE: Want to run L4Re on Raspberry PI.
> 
> When I cross compiled Fiasco for Raspberry PI3 B,   running into this compiling error as below.
> 
> Here are what I did:
>   1. use Linaro cross compiler
>   2. // cross compiling for Rpi 3b+
>       $make BUILDDIR=build-rpi3-ukernel
>       $make O=build-rpi3-ukernel config    // pick aarch64, broadcom 2837, and rpi 3b
>       $make O=build-rpi3-ukernel -j4
> 
> Compiling error:
> ========================
>   ... Making arm_control-arm-bcm283x.o
>   ... Making irq_handler-arm-bcm283x.o
>   ... Making uart_console.o
>   ... Making vgic.o
>   ==> Linking tcboffset.bin
>   ... Making jdb.o
> In file included from auto/vgic.cc:4:0:
> /home/lezhou/workspace/l4re/src/kernel/fiasco/src/kern/arm/vgic.cpp: In constructor ‘Gic_h_init::Gic_h_init(Cpu_number)’:
> /home/lezhou/workspace/l4re/src/kernel/fiasco/src/kern/arm/vgic.cpp:153:59: error: ‘Gic_h_phys_base’ is not a member of ‘Mem_layout’
>          Gic_h::gic.construct(Kmem::mmio_remap(Mem_layout::Gic_h_phys_base));
>                                                            ^~~~~~~~~~~~~~~
> /home/lezhou/workspace/l4re/src/kernel/fiasco/src/Makerules.global:118: recipe for target 'vgic.o' failed   <<<====== compiling error
> make[2]: *** [vgic.o] Error 1
> make[2]: *** Waiting for unfinished jobs....
> make[2]: Leaving directory '/home/lezhou/workspace/l4re/src/kernel/fiasco/build-ukernel-pi3'
> /home/lezhou/workspace/l4re/src/kernel/fiasco/src/Makefile:153: recipe for target 'all' failed
> ======================================================================
> 
> Any inputs would be appreciated!
> Lei
> 
> 
> 
> 
> 
> 
> ________________________________________
> From: l4-hackers [[email protected]] on behalf of Paul Boddie [[email protected]]
> Sent: Wednesday, May 29, 2019 12:27 PM
> To: [email protected]
> Subject: Re: Want to run L4Re on Raspberry PI.
> 
> On Wednesday 29. May 2019 15.20.01 Matthias Lange wrote:
> >
> > The issue we have with "standard" cross toolchains is the libgcc they are
> > shipping. It is compiled for ARMv7 and contains instructions that are
> > unknown / illegal on ARMv6k. The mean thing is, that our build system tells
> > GCC via "-march=armv6zk" what code to generate but then links the wrong
> > libgcc.
> 
> Some of these compiler configuration issues are awkward. My problem was that
> although there are switches for hard- and soft-float, appropriate libgcc
> variants need to be available, and the Debian toolchains do not provide them
> all. I actually don't remember if there is a need for completely separate
> compilers, but I would hope not (and yet not be surprised if it were the
> case).
> 
> Of course, it is one thing to be able to avoid certain instructions in one's
> own code, quite another to have to deal with library code liberally using
> "illegal" instructions. I got quite far with bare metal code, even targeting
> microcontrollers like the PIC32 with the MIPS compilers, for instance.
> 
> So, the Buildroot compiler it had to be.
> 
> Paul
> 
> P.S. I have a selfish interest in following this as I could imagine also
> trying out L4Re on the Raspberry Pi at some point. I guess that the
> framebuffer isn't currently supported though.
> 
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Adam
-- 
Adam                 [email protected]
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/

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