Re: kernel cross-compile problem with embdebian's toolchain

[Wan ZongShun <mcuos.com@xxxxxxxxx>]

Dear Zachár Balázs
You can find your new kernel system.map or objdump linux elf file that iscompiled by new tools, finding this address "0xa1714e30" which start tocrash.
2009/3/13 Zachár Balázs <bzachar@xxxxxxxxxxxxxx>
> Hello @list!>> I have a pxa270 based custom board... I got a sdk for with toolchain with> it and an old kernel source (with drivers to my custom board) which I can> custom and recompile...>> I would like to compile a newer system to my board.> I would like to use a newer toolchain than the original, and I found the> emdebian has a toolchain to ARM architecture.> I install it to a debian box... (I followed this:> http://www.emdebian.org/tools/crosstools.html )> I compile a static "Hello world!" with the emdebian cross-gcc and it works> properly on my board (it has an old preinstalled system)...> I recompile the old (original) kernel in emdebian toolchain and it works> properly too...>>> After that, I ported the drivers to the latest stable mainline kernel and> now I would like to compile it...>> I compile the new kernel with the emdebian toolchain (the compilation were> success) but it didn't start...> I got these errors when the kernel would like to start:>   Verifying Checksum ... OK>   Uncompressing Kernel Image ... OK>> Starting kernel ...>> undefined instruction> pc : [<a040896c>]    lr : [<a1714e30>]> sp : a16bfcec  ip : 00000005  fp : 00000002> r10: 00000000  r9 : a16e04e0  r8 : a16bffdc> r7 : a1721bf8  r6 : a16c028e  r5 : a0000154  r4 : a000015a> r3 : a0008000  r2 : a0000100  r1 : 00000196  r0 : 00000000> Flags: Nzcv  IRQs off  FIQs off  Mode SVC_32> Resetting CPU ...>> resetting ...>>> BUT, when I compile the new kernel in the old (orig) toolchain it works!!!>> Summary:> Old kernel recompile works both old toolchain and new toolchain...> New kernel recompile works only with the old toolchain...>>>> The compilation steps which I used for the toolchains (uboot bootloader):> CROSS_COMPILE="/usr/bin/arm-linux-gnu-"> make ARCH=arm CROSS_COMPILE=$CROSS_COMPILE> ${CROSS_COMPILE}objcopy -O binary -R .note -R .comment -S vmlinux linux.bin> gzip -9 linux.bin> mkimage -A arm -O linux -T kernel -C gzip -a 0xa0008000 -e 0xa0008000 -n> "New kernel" -d linux.bin.gz  newkernel.img>> So the questions are:> Where is the problem?> What is the problem?>> Thanks,> Zachár Balázs>> -------------------------------------------------------------------> List admin: http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm> FAQ:        http://www.arm.linux.org.uk/mailinglists/faq.php> Etiquette:  http://www.arm.linux.org.uk/mailinglists/etiquette.php>


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