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Porting libtiff library
by Irvanda Kurniadi 15 Dec '13

15 Dec '13

Hi hackers, I'm trying to port libtiff by following the structure of libjpeg, but I couldn't fix the error in porting libtiff. This is the tree of libjpeg: libjpeg: Control Makefile Lib Lib: build contrib include Makefile build: jconfig.h Makefile contrib: the source file of jpeg-9 library include: Makefile *What is the function of Control file?* libjpeg/Control: provides: libjpeg requires: libc libjpeg/Makefile: PKGDIR = . L4DIR ?= $(PKGDIR)/../.. include $(L4DIR)/mk/subdir.mk *I think this Makefile only for generate the other Makefile in sub-directory. * libjpeg/lib/Makefile: PKGDIR ?= .. L4DIR ?= $(PKGDIR)/../.. TARGET = include build include $(L4DIR)/mk/subdir.mk *This Makefile also only for generating the other Makefile in targeted directories.* libjpeg/lib/include/Makefile: PKGDIR = ../.. L4DIR ?= $(PKGDIR)/../.. CONTRIB_HEADERS = y INCSRC_DIR = $(PKGDIR_ABS)/lib/contrib TARGET = jpeglib.h jmorecfg.h jerror.h \ $(PKGDIR_ABS)/lib/build/jconfig.h include $(L4DIR)/mk/include.mk *What is the function of this Makefile in include directory?* libjpeg/lib/build/Makefile: PKGDIR ?= ../.. L4DIR ?= $(PKGDIR)/../.. TARGET = libjpeg.a libjpeg.so SYSTEMS = $(SYSTEMS_PLAIN) LIBS = $(GCCLIB) CONTRIB_INCDIR = libjpeg SRC_C = jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \ jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \ jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \ jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \ jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c \ jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \ jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ jquant2.c jutils.c jmemmgr.c jmemnobs.c jdarith.c vpath %.c $(SRC_DIR)/../contrib include $(L4DIR)/mk/lib.mk # prevent warnings CFLAGS := $(filter-out -Wextra -Wall,$(CFLAGS)) *I think this Makefile is used for compiling all c file in source lib. Is it true that this jconfig.h is obtained by manual configure?* *From this understanding I tried to port libtiff with the same way:* libtiff: Control lib Makefile lib: build contrib include Makefile build: Makefile tiffconf.h contrib: the source file of tiff-4.0.3 include: Makefile libtiff/Control: provides: libtiff requires: zlib libc l4re_c libjpeg libtiff/Makefile: PKGDIR = . L4DIR ?= $(PKGDIR)/../.. include $(L4DIR)/mk/subdir.mk libtiff/lib/Makefile: PKGDIR ?= .. L4DIR ?= $(PKGDIR)/../.. TARGET = include build include $(L4DIR)/mk/subdir.mk libtiff/lib/include/Makefile: PKGDIR = ../.. L4DIR ?= $(PKGDIR)/../.. CONTRIB_HEADERS = y INCSRC_DIR = $(PKGDIR_ABS)/lib/contrib/libtiff TARGET = tif_config.h \ $(PKGDIR_ABS)/lib/build/tiffconf.h include $(L4DIR)/mk/include.mk *I got the tiffconf.h after manual ./configure, then I put the tiffconf.h in build directory.* libtiff/lib/build/Makefile: PKGDIR ?= ../.. L4DIR ?= $(PKGDIR)/../.. TARGET = libtiff.a libtiff.so REQUIRES_LIBS = libjpeg SYSTEMS = $(SYSTEMS_PLAIN) LIBS = $(GCCLIB) CONTRIB_INCDIR = libtiff SRC_C = tif_aux.c tif_close.c tif_codec.c tif_color.c \ tif_compress.c tif_dir.c tif_dirinfo.c tif_dirread.c tif_dirwrite.c \ tif_dumpmode.c tif_error.c tif_extension.c tif_fax3.c tif_fax3sm.c \ tif_flush.c tif_getimage.c tif_jbig.c tif_jpeg_12.c tif_jpeg.c \ tif_luv.c tif_lzma.c tif_lzw.c tif_next.c tif_ojpeg.c tif_open.c \ tif_packbits.c tif_pixarlog.c tif_predict.c tif_print.c tif_read.c \ tif_read.c tif_strip.c tif_swab.c tif_thunder.c tif_tile.c tif_unix.c \ tif_version.c tif_warning.c tif_win32.c tif_write.c tif_zip.c vpath %.c $(SRC_DIR)/../contrib/libtiff include $(L4DIR)/mk/lib.mk # prevent warnings CFLAGS := $(filter-out -Wextra -Wall,$(CFLAGS)) *After I compiled the pkg, then I got this error message:* In file included from ~/l4linux_test/obj/l4/x86/include/contrib/libjpeg/jpeglib.h:27:0, from ~/l4linux_test/src/l4/pkg/libtiff/lib/contrib/libtiff/tif_jpeg.c:88: ~/l4linux_test/obj/l4/x86/include/contrib/libjpeg/jmorecfg.h:263:16: error: expected identifier before numeric constant ... make[8]: *** [tif_jpeg.o] Error 1 please help me to find out this problem, thanks Regards, Irvanda

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Dynamic creation and passing of IPC channels
by Robert Kaiser 13 Dec '13

13 Dec '13

Hi all, I have two tasks running and communicating through an IPC connection (basically the clntsrv demo). Now I would like to extend this a bit: Using an ipc_call(), the client (actually: multiple clients) should be able to register with a server to receive a wakeup IPC at individually different points in time in the future. (First, flawed idea to do this was to *not* use the combined reply_and_wait call on the server side but instead to only do a wait() call and then postpone the corresponding reply() until when the client should be woken up. However, I learned that this will not work because the implicit reply capability will be lost as soon as another ipc call is done by the server.) Next idea now is to create another IPC channel in the client and to pass (via IPC) the send capability for that channel to the server. The client shall than block in an ipc_receive() on that channel and the server can wake it by sending to that channel. I guess this should be possible and for a seasoned Fiasco.OC/L4Re expert it is probably quite easy to do, but I can't seem to find how to: - create an IPC channel at client/server run time (so far, all IPC channels I used were prepared by Ned through lua scripts) - pass the send capability for such a channel to another task via IPC Can anyone point me to some helpful documentation or maybe an example I could cannibalize to implement this (preferably in C, but C++ code would surely be helpful too)? Thanks in advance for any help! Robert

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Re: Request for information on l4 fiasco
by Matthias Lange 10 Dec '13

10 Dec '13

Hi, On 12/10/2013 04:05 PM, Viswa Sekar wrote: > Hello Sir, > thank you for your reply. > > that is really good to hear. > > is there any possibility that i can know the steps for it? > any manuals, or process for it. First, you'll need a proper cross toolchain. One configured for PPC750 should be fine. In the L4Re snapshot archive there is also a README which provides some information on how to build everything. You can adapt the hints given for ARM. Following up the hints Sebastian gave: do you already have a target hardware for your project? Matthias. > > kindly help me. > > thanks in advance > > > On Tue, Dec 10, 2013 at 3:59 PM, Matthias Lange > <mlange(a)sec.t-labs.tu-berlin.de <mailto:mlange@sec.t-labs.tu-berlin.de>> > wrote: > > Hi, > > On Tue, Dec 10, 2013 at 09:51:10AM +0100, Viswa Sekar wrote: > > Hello Sir, > > > > I am on a project on porting l4 fiasco.oc to power pc architecture. > > i am totally new to this. > > kindly provide me documentation/information on the same. > > it will be very useful. > > Fiasco has already been ported to PowerPC. The current state is, that it > compiles but functionality might be broken due to the lack of > testing hardware > on our side. > > Matthias. > > > > > -- > With warm regards, > *VISWA SUBRAMANIAN SEKAR* > Final Year B.E Computer Science and Engineering > PSG COLLEGE OF TECHNOLOGY > Coimbatore. > Phone: +91 94427 94420 > Email: viswasekarsubramanian(a)gmail.com > <mailto:viswasekarsubramanian@gmail.com> > > > -- Matthias Lange, matthias.lange(a)kernkonzept.com, +49 - 351 - 41 88 86 14 Kernkonzept GmbH. Sitz: Dresden. Amtsgericht Dresden, HRB 31129. Geschäftsführer: Dr.-Ing. Michael Hohmuth

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Request for information on l4 fiasco
by Viswa Sekar 10 Dec '13

10 Dec '13

Hello Sir, I am on a project on porting l4 fiasco.oc to power pc architecture. i am totally new to this. kindly provide me documentation/information on the same. it will be very useful. thanks in advance! : -- With warm regards, *VISWA SUBRAMANIAN SEKAR* Final Year B.E Computer Science and Engineering PSG COLLEGE OF TECHNOLOGY Coimbatore. Phone: +91 94427 94420 Email: viswasekarsubramanian(a)gmail.com

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Microkernel Devroom Accepted Talks and Preliminary Schedule
by Julian Stecklina 06 Dec '13

06 Dec '13

Hello fellow hackers, the microkernel devroom at FOSDEM is packed full with talks! Here is a list of accepted talks and the very preliminary(!) schedule for Feb 2nd. I have changed the requested length of time slots slightly where it made sense. 09:00 - 09:05 Welcoming and Introduction 09:05 - 09:50 Rump Kernels, Just Components Antti Kantee 09:55 - 10:40 Genode as general-purpose OS - Progress report and demonstration Norman Feske 10:45 - 11:30 HelenOS annual update Jakub Jermář 11:35 - 12:05 The microkernel OS Escape Nils Asmussen 13:00 - 13:45 State of the Union: What's new in the L4Re Microkernel System t.b.d. 13:50 - 14:20 Secure applications on top of L4 Sartakov A. Vasily 14:25 - 14:55 GNU/Hurd DDE userland device drivers Samuel Thibault 15:00 - 15:30 Virtualization Dungeon on ARM Stefan Kalkowski 15:40 - 16:25 Read-Copy-Update for HelenOS Martin Děcký 16:30 - 17:00 Rethinking Resource Control Michael Engel I hope those whose talks didn't make it will attend anyway. Julian

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Porting libraries to l4linux
by Irvanda Kurniadi 06 Dec '13

06 Dec '13

Hi hackers, I have read some question about adding libraries to l4/fiasco, but I don't get how to do it exactly. I need to port libtiff and openmpi to compile my program over l4/fiasco. Do you have any documentation about it? I have another question related to running application on top l4linux. Is it possible to run my application on top l4linux; like, if I want to run hello world application over l4linux (not just booting it over l4/fiasco)? I tried to run it by using this configuration: -- Start Hello loader:start( { caps = {}, l4re_bdg = L4.Dbg.Warn, log = {"hello","red"}, }, "rom/hello"); -- Start Linux loader:start( { caps = { log = L4.Env.log:m("rws"), fb = mag_svc:create(L4.Proto.Goos, "g=640x480"); vbus = vbus_l4linux; }, l4re_dbg = L4.Dbg.Warn, log = { "l4linux", "yellow" }, }, "rom/" .. lxname .. " mem=64M console=tty0 l4x_rd=rom/ramdisk-" .. L4.Info.arch() .. ".rd root=1:0 ramdisk_size=4000 init=linuxrc"); But I think it only run two different applications over l4/fiasco. Do you have any idea how to run the hello application over l4linux? Best regards, Irvanda

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serial_drv failed
by Raja Sekhar 28 Nov '13

28 Nov '13

Hello all, I'm trying to run serial_drv on x86 . But I'm getting the following error...... *serial-drv: virtual base at:0x3000* *L4Re[rm]: mapping for page fault failed with -34 @3030 pc=10008e8* *L4Re: unhandled exception: pc=0x10008e8* What migh be the reason....... *Thanks,* Raja Sekhar

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FOSDEM microkernel devroom submission deadline nears (Dec 1st)
by Julian Stecklina 27 Nov '13

27 Nov '13

Hello fellow microkernel hackers, the deadline for submitting talks to our devroom in Brussels is December 1st. If you haven't already, consider submitting a talk. Details are in the original CfP mail: https://os.inf.tu-dresden.de/pipermail/l4-hackers/2013/006068.html Submissions are done via FOSDEM's Pentabarf: https://penta.fosdem.org/submission/ If Pentabarf doesn't work for you, please send your proposal or any other questions regarding the devroom to: microkernel-devroom(a)lists.fosdem.org See you in Brussels, Julian

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[ASK] Make L4 + Fiasco ISO to boot in pandaboard
by Erry Pradana Darajati 25 Nov '13

25 Nov '13

Hello L4hackers, I have a project from my college to build and configure fiasco with l4re to boot and run in Pandaboard. So far i have already build the kernel and l4. But i am having trouble to making ISO for l4re. i follow the instruction using *grub2iso *but it unsuccessful. The Error says : *This mode can only be used with architectures x86 and amd64*. My question is, how can i make ISO for Pandaboard ARM. Thank you for the answer, i am really new for this subject, so i am really appreciate any help -- *Regards,* *Erry Pradana Darajati | Student of Computer Engineering* *Politeknik Elektronika Negeri Surabaya*

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Using Trustzone on mx53 and L4Linux
by panton 21 Nov '13

21 Nov '13

Hello Hackers, I am trying to run the example on l4/examples/sys/vm-tz on my imx53 qsb. I get something running but I am pretty sure it is not correct. I have found a message called "Full virtualization with Trustzone" that make me wonder several questions and I hope you can help me. 1- The vm-tz example is supposed to run a L4Linux on NS world. What I don't understand in which format should be the linux-image (or any other app you want to run). I use a gz compress linux image (the same I use for running "L4Linux ARM" example), but I think it should be a bin file (not even a ELF). 2- The vm-tz example make use of l4sigma0_map_iomem() to request a memory mapping, but why not a l4sigma0_map_mem() if what you want is RAM mapping? The serial exit I get is: SIGMA0: Dump of all resource maps RAM:------------------------ [0:70000000;70000fff] [0:70063000;7008ffff] [0:70097000;70097fff] [0:7009f000;7013ffff] [4:70140000;7016cfff] [0:7016d000;7016ffff] [4:70170000;70186fff] [0:70187000;7100cfff] [4:7100d000;7100dfff] [0:7100e000;710fffff] [4:71100000;7182cfff] [0:7182d000;8effffff] IOMEM:---------------------- [0:0;6fffffff] [0:90000000;ffffffff] MOE: Hello world MOE: found 499832 KByte free memory MOE: found RAM from 70000000 to 8f000000 MOE: allocated 496 KByte for the page array @0x7009f000 MOE: virtual user address space [0-bfffffff] MOE: rom name space cap -> [C:501000] BOOTFS: [716eb000-71704494] [C:503000] l4re BOOTFS: [71705000-7171e674] [C:504000] vm-tz BOOTFS: [7171f000-7182c73c] [C:505000] io BOOTFS: [71100000-711000bd] [C:506000] arm-rv.io BOOTFS: [71101000-713ea4b4] [C:507000] vmlinuz.arm (My gz compressed linux image) BOOTFS: [713eb000-716eb000] [C:508000] ramdisk-arm.rd MOE: cmdline: moe --init=rom/vm-tz MOE: Starting: rom/vm-tz MOE: loading 'rom/vm-tz' And next is repeated forever without change. VM run VM exit pc:20007000 cpsr:00000013 r0:00000000 r1:0000033b r2:20007100 r3:00000000 r4:00000000 r5:00000000 r6:00000000 r7:00000000 r8:00000000 r9:00000000 r10:00000000 r11:00000000 r12:00000000 lr_svc:00000000 sp_svc:00000000 spsr_svc:00000000 Thanks in advanced for your answers, if any :). Pablo Anton.

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