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? 2. What kind of vendor setting used to build the romfs.2.4.x? GDB/ARMulator or GDB/ARMulator-EB? 3. Any other particular setting in menuconfigs to affect the romfs.2.4.x? Thank you in advance for kindly replying. :-) Drag 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 >
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