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

[Zachár Balázs <bzachar@xxxxxxxxxxxxxx>]

I found the solution...
I make the objcopy without -R .note.gnu.build-id option see this patch:
http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=4600

Regards,
Balázs Zachár

Wan ZongShun wrote:
> Dear Zachár Balázs
> 
> You can find your new kernel system.map or objdump linux elf file that
> is compiled by new tools, finding this address "0xa1714e30" which start
> to crash.
> 
> 2009/3/13 Zachár Balázs <bzachar@xxxxxxxxxxxxxx
> <mailto: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
> 
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