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2323 discussions

How do I get the uImage on to the sdcard?
by Peter Teoh 19 Feb '15

19 Feb '15

sorry, I have followed this: http://sourceforge.net/p/genode/mailman/message/32421676/ http://sourceforge.net/p/genode/mailman/genode -main/thread/9167aa55bacd5e3f00e64168280aef3e%40lcc.uma.es/#msg31683911 Have got the uImage file generated: tool/build_hw_imx53/var/run>tree . └── tz_vmm ├── boot_modules.s ├── image.elf └── uImage but problem is after "sudo dd if=./uImage of=/dev/mmcblk0 bs=1M" onto my sdcard (/dev/mmcblk0) it seemed to bootup with any boot prompts on the console interface. Help? -- Regards, Peter Teoh

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How do I get the uImage on to the sdcard?
by Peter Teoh 19 Feb '15

19 Feb '15

sorry, I have followed this: http://sourceforge.net/p/genode/mailman/message/32421676/ http://sourceforge.net/p/genode/mailman/genode-main/thread/9167aa55bacd5e3f… Have got the uImage file generated: tool/build_hw_imx53/var/run>tree . └── tz_vmm ├── boot_modules.s ├── image.elf └── uImage but problem is after "sudo dd if=./uImage of=/dev/mmcblk0 bs=1M" onto my sdcard (/dev/mmcblk0) it seemed to bootup with any boot prompts on the console interface. Help? -- Regards, Peter Teoh

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Raspberry Pi U-Boot?
by Jeroen "Slim" van Gelderen 19 Feb '15

19 Feb '15

Hi, Does anyone know if Genode can be booted through U-Boot on a Raspberry Pi (model B+)? Cheers, -- Jeroen "Slim" van Gelderen

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Framebuffer
by chirag garg 12 Feb '15

12 Feb '15

Hi all, I was trying to understand the flow of framebuffer flow for given imx53 code in the following directory repos/os/src/drivers/framebuffer/imx53/main.cc In the main function, one static variable "session_component" has been created which uses the "config_attribute" function defined in line number 115 which expect a config file in build process. What is the need of this config file with respect to framebuffer and where should i found this config file in the repository because when i run the framebuffer script it is not able to open config file? Regards Chirag Garg IIT Madras , Rise Lab

2 4

testing tools
by Waldo Paz Rodriguez 10 Feb '15

10 Feb '15

hello genode hackers, I need to know which types of testing and tools are available for testing devices drivers, system call performance, scheduling and any modification made on the system. best regards, waldo

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port samsung exynos 5
by Waldo Paz Rodriguez 10 Feb '15

10 Feb '15

Hi Genode hackers, I am did several printf to locate the error and it's located on this lines about line 226: static Rm_root rm_root (e, e, e, &sliced_heap, core_env()->cap_session(), platform()->vm_start(), platform()->vm_size()); about line 80: Platform_generic *Genode::platform() { return platform_specific(); } about line 73: Platform *Genode::platform_specific() { static Platform _platform; return &_platform; } best regards waldo

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Deployment of upstream library sources
by Roman Iten 09 Feb '15

09 Feb '15

Hi, we need a way to provide upstream library sources (i.e. the "contrib"-directory) in an environment without internet access. In order to make this task reasonably comfortable, I miss three features in the prepare tool: 1. Similar to "make -C ./build ...", "make prepare -C ./build" will download all upstream sources required by the corresponding build.conf file. 2. "make prepare ... --download-script download.sh" won't download anything, but instead creates a script file which can be transferred to a PC connected to the internet. There you can execute the script in order to download the sources. The download directory can then be transferred into the offline environment. 3. "make prepare ... --unpack [/path/to/download_dir]" unpacks the downloaded upstream libraries to the local contrib directory. What do you think? Is something like this possible? Or do you have any other ideas/suggestions? Regards Roman

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Running Linux 3.14 as a Genode VM
by Nico Weichbrodt 06 Feb '15

06 Feb '15

Hi, I'm a student at TU Braunschweig and I inherited a Genode project from another student. He used Genode on an i.MX53 Quick Start Board to boot a Linux 2.6.35 kernel (this one: https://github.com/skalk/linux) as a VM with TrustZone support. This works fine. For my task I need a newer kernel, so I'm currently trying to upgrade to kernel 3.14. Since this kernel requires dtbs I modified Genode to load the dtb instead of ATAGs. I had to modify my dtb so the memory layout matches and to set the bootargs. My kernel now boots but hangs very soon at this point: Uncompressing Linux... done, booting the kernel. [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.14.15-00329-gaed2dee-dirty (envy@...289.....) (gcc version 4.5.2 (Sourcery G++ Lite 2011.03-41) ) #40 Wed Jan 14 16:06:19 CET 2015 [ 0.000000] CPU: ARMv7 Processor [412fc085] revision 5 (ARMv7), cr=10c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] Machine model: Freescale i.MX53 Quick Start-R Board [ 0.000000] bootconsole [earlycon0] enabled [ 0.000000] Memory policy: Data cache writeback [ 0.000000] On node 0 totalpages: 131072 [ 0.000000] free_area_init_node: node 0, pgdat c05b36e8, node_mem_map dfbf9000 [ 0.000000] Normal zone: 1024 pages used for memmap [ 0.000000] Normal zone: 0 pages reserved [ 0.000000] Normal zone: 131072 pages, LIFO batch:31 [ 0.000000] CPU: All CPU(s) started in SVC mode. [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048 [ 0.000000] Kernel command line: console=ttymxc0,115200 earlyprintk loglevel=10 [ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes) [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Memory: 513696K/524288K available (4039K kernel code, 219K rwdata, 1384K rodata, 198K init, 123K bss, 10592K reserved, 0K highmem) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) [ 0.000000] vmalloc : 0xe0800000 - 0xff000000 ( 488 MB) [ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) [ 0.000000] .text : 0xc0008000 - 0xc0553f8c (5424 kB) [ 0.000000] .init : 0xc0554000 - 0xc0585bbc ( 199 kB) [ 0.000000] .data : 0xc0586000 - 0xc05bcda0 ( 220 kB) [ 0.000000] .bss : 0xc05bcda0 - 0xc05dba2c ( 124 kB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] TrustZone Interrupt Controller (TZIC) initialized [ 0.000000] CPU identified as i.MX53, silicon rev 2.1 [ 0.000000] Switching to timer-based delay loop [ 0.000009] sched_clock: 32 bits at 33MHz, resolution 29ns, wraps every 128849015778ns [ 0.008364] Console: colour dummy device 80x30 [ 0.012925] Calibrating delay loop (skipped), value calculated using timer frequency.. If I add some debug statements to linux/init/calibrate.c before the pr_info("Calibrating delay loop (skipped) ..."); then those get printed as well, but the "Calibrating..." text is not. I also added a loop at the top of the calibrate_delay() function which just prints an incrementing counter but this loop only prints once and then hangs. Now I have two assumptions: Either the serial driver is hanging or it has something to do with the clocks/timer because the highest time passed number I got was 0.016800-ish. I have not yet replayed the TrustZone commits from Stefan Kalkowski for Linux 2.6.35 but because I set all devices as unsecure inside Genode (genode/repos/base-hw/src/core/include/spec/imx53/trustzone/csu.h) this should not be necessary, right? If you have any pointers/ideas/suggestions for me, this would be very helpful. Cheers, Nico Weichbrodt

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sync() not implemented by rumpfs
by a3an 05 Feb '15

05 Feb '15

Hello, while experimenting with rumpfs I noticed that sync() is not supported by rumpfs. I added a sync() call in ../test/libc_ffat/main.cc and executed make run/rump_ext2. I got the following message: [init -> test-libc_vfs] DUMMY sync(): sync called, not implemented I guess, a filesystem not supporting sync() is of greatly reduced value. Has this call been blocked on purpose ? Regards, Adrian Schuur

3 7

Error for l4android with Genode 14.11
by li94575 03 Feb '15

03 Feb '15

Hi all, When I run l4android (3.5) with the latest Genode, I got an error, the args for l4android in run script is "mem=512M console=ttys0 l4x_rd=root-lc.gz". Part of log is as follows: [init -> l4android] Main thread running, waiting... [init -> l4android] l4re_global_env:0 [init -> l4android] Main memory size: 512MB unmapping of managed dataspaces not yet supported [init -> l4android] Main memory: virt:20000000 to 3fffffff [524288 KiB] [init -> l4android] Main memory: phys:0x00000000 to 0x20000000, size: 536870912 [init -> l4android] Filling lower ptabs... [init -> l4android] Done (0 entries). [init -> l4android] l4x_register_pointer_section: addr = 01000000 size = 5242880 [init -> l4android] text: virt: 1000000 to 14fffff [5120 KiB] [init -> l4android] Cannot determine physical address for dataspace Binary! [init -> l4android] error: failed to get physical address for 1000000. virtual void Genode::Signal_session_component::submit(Genode::signal_context_capability, unsigned int): invalid signal-contex capability virtual void Genode::Pager_activation_base::entry(): Could not resolve pf=3fffff000 ip=1000e88 It seems that the virtual address(0x20000000 ~ 0x3fffffff) has not been mapped to actual physical address. So I compared the L4Linux support library with previous versions, I found the funtion "l4re_ma_alloc" (in ports-foc/src/lib/l4lx/l4_re_c_mem_alloc.cc) has changed, and l4android will use the function for memory allocation. Can somebody tells me why make that adjustment? Is it the reason why l4android produces that error?

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