Hello Tiago, On 06/01/2016 01:07 PM, Tiago Brito wrote: > Hi, I've been trying to use libpng inside the secure world of i.MX53 QSB > TrustZone aware TZ_VMM example. > > I want to receive an image from the normal world (running Linux) and do > some process the image in some way inside the secure world. > > I understand the flow of genode and tz_vmm in particular and there are some > examples on how to communicate data between the normal and secure world, so > that's not my problem right now. My problem is that I cannot run tz_vmm > after adding libpng as a lib. > > In order to use libpng inside tz_vmm I did the following: > 1) in $(BUILDDIR)/etc/build.conf uncommented this line > REPOSITORIES += $(GENODE_DIR)/repos/libports > > 2) inside $(GENODE_DIR)/repos/libports I did: > make prepare PKG="libc zlib libpng" > > 3) inside $(BUILDDIR)/repos/os/src/server/tz_vmm/spec/imx53 I added the > following to target.inc > LIBS += libc > LIBS += zlib > LIBS += libpng > > 4) then I added #include <png.h> inside main.cc > > 5) finally inside $(BUILDDIR) I did > make run/tz_vmm > > All these steps compiled fine, but when I run this on my board the > following message comes up: > > ## Booting kernel from Legacy Image at 70200000 ... > Image Name: > Image Type: ARM Linux Kernel Image (gzip compressed) > Data Size: 7888432 Bytes = 7.5 MiB > Load Address: 70010000 > Entry Point: 70010000 > Verifying Checksum ... OK > Uncompressing Kernel Image ... OK > > Starting kernel ... > > kernel initialized > Genode 16.02 > int main(): --- create local services --- > int main(): --- start init --- > int main(): transferred 242 MB to init > int main(): --- init created, waiting for exit condition --- > [init] Could not open ROM session for module "ld.lib.so" > [init] parent provides > [init] service "ROM" > [init] service "RAM" > [init] service "IRQ" > [init] service "IO_MEM" > [init] service "IO_PORT" > [init] service "CAP" > [init] service "PD" > [init] service "RM" > [init] service "CPU" > [init] service "LOG" > [init] service "SIGNAL" > [init] service "VM" > [init] Dynamically linked file found, but no dynamic linker binary present > [init] unknown exception? > [init] child "tz_vmm" > [init] RAM quota: 10203136 > [init] ELF binary: tz_vmm > [init] priority: 0 > > What have I done wrong? It seems I need to add a binary somewhere, but I > don't know where. Do I need to compile anything else in order to libpng to > be usable inside genode? > > Thanks in advance!
You missed to add the dynamic linker itself to the files to be loaded. It is called ld.lib.so and can be found in your build-directory under bin/. PLease also add all other *.lib.so files to your bootloader configuration resp. the run-script. Regards Stefan > > Best regards, Tiago > > > > ------------------------------------------------------------------------------ > What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic > patterns at an interface-level. Reveals which users, apps, and protocols are > consuming the most bandwidth. Provides multi-vendor support for NetFlow, > J-Flow, sFlow and other flows. Make informed decisions using capacity > planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e > > > > _______________________________________________ > genode-main mailing list > genode-main@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/genode-main > -- Stefan Kalkowski Genode Labs http://www.genode-labs.com/ ยท http://genode.org/ ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e _______________________________________________ genode-main mailing list genode-main@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/genode-main
