How to use uc53281(freescale)-EVM thanks
-- 在2009-01-05，"David McCullough" <david_mccullo...@securecomputing.com> 写道： > >Jivin Yuan-Lung Li lays it down ... >> Dear DavidM, >> I have other questions about the romfs.2.4.x.gz on the website >> http://www.uclinux.org/pub/uClinux/utilities/armulator/ >> >> 1. What version of toolchain used to build the romfs.2.4.x? > >Almost certainly something very old. gcc-2.95.3 based, probably this >one: > > > http://www.uclinux.org/pub/uClinux/arm-elf-tools/arm-elf-tools-20030314.sh > >> 2. What kind of vendor setting used to build the romfs.2.4.x? GDB/ARMulator >> or GDB/ARMulator-EB? > >Follow the ARMulator thread in this article: > > http://www.ucdot.org/archive/tb/tb20020807.shtml > >This was done using uClinux-dist-20020701. > >All the settings should be in the vendors/GDB/Armulator directory. Edit >config.arch to enable/disable XIP. > >> 3. Any other particular setting in menuconfigs to affect the romfs.2.4.x? >> >> Thank you in advance for kindly replying. :-) > >All in the above, sorry for a tardy response, vacation time ;-) > >Cheers, >Davidm > >> 2008/12/27 Yuan-Lung Li <dra...@gmail.com> >> >> > Dear all, >> > I have search the solution for this problem about 2 months... >> > Here is my environment: >> > >> > Toolchain: >> > arm-linux-tools-20070808.tar.gz fownloaded from >> > http://ftp.snapgear.org/pub/snapgear/tools/arm-linux/arm-linux-tools-20070808.tar.gz >> > >> > uClinux Distribution: >> > uClinux-dist-20080808.tar.gz downloaded from >> > http://www.uclinux.org/pub/uClinux/dist/uClinux-dist-20080808.tar.bz2 >> > >> > Now I got stuck on the booting after /bin/init running. Seems the init >> > launch the sash shell and then do_rc in the /etc/rc in the romfs. After >> > first command "hostname XXXX" executed, the program counter goes some >> > invalid place. I am using the non-XIP version of kernel. I did some trial >> > as >> > below: >> > 1. replace the first command as "ls /bin" or "cat /etc/motd", the main >> > function of them works well but the platform dead after return. >> > 2. I download the romfs "romfs.2.4.x" from >> > http://www.uclinux.org/pub/uClinux/utilities/armulator/romfs.2.4.x.gz >> > The OS start and I see the promt!!! >> > 3. I use the arm-linux-flthdr to check the binary in "romfs.2.4.x" every >> > bFlt in /bin has the header below: >> > /mnt/bin/init >> > Magic: bFLT >> > Rev: 4 >> > Build Date: not specified >> > Entry: 0x50 >> > Data Start: 0x3050 >> > Data End: 0x33b0 >> > BSS End: 0x48b0 >> > Stack Size: 0x1000 >> > Reloc Start: 0x33b0 >> > Reloc Count: 0x94 >> > Flags: 0x1 ( Load-to-Ram ) >> > 4. I also check the binaries in my romfs directory, evey bFlt in >> > romfs/bin has the header below: >> > romfs/bin/init >> > Magic: bFLT >> > ..... >> > Flags: 0x2 ( Has-PIC-GOT ) >> > 5. modifying the "vendors/config/armnommu/config.arch" to make the >> > LDFLAGS+= -Wl,-elf2flt="-r", the build result of the romfs bFlt as below: >> > romfs/bin/init >> > Magic: bFLT >> > ......... >> > Flags: 0x3 ( Load-to-Ram Has-PIC-GOT ) >> > The romfs still made my platform dead in nasty place. >> > 6. I have trace many discussion, some kind like "arm-linux-flthdr -r >> > romfs/init", the result is the same as trial number 5. >> > >> > How can I build the romfs with the bFlt in pure "Load-to-Ram"(aka the >> > Flags:0x1)? >> > >> > Many thanks for any idea and replying. >> > >> > Drag >> > > >> _______________________________________________ >> uClinux-dev mailing list >> uClinux-dev@uclinux.org >> http://mailman.uclinux.org/mailman/listinfo/uclinux-dev >> This message was resent by uclinux-dev@uclinux.org >> To unsubscribe see: >> http://mailman.uclinux.org/mailman/options/uclinux-dev > >-- >David McCullough, david_mccullo...@securecomputing.com, Ph:+61 734352815 >Secure Computing - SnapGear http://www.uCdot.org http://www.snapgear.com >_______________________________________________ >uClinux-dev mailing list >uClinux-dev@uclinux.org >http://mailman.uclinux.org/mailman/listinfo/uclinux-dev >This message was resent by uclinux-dev@uclinux.org >To unsubscribe see: >http://mailman.uclinux.org/mailman/options/uclinux-dev
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