how to add debug information into the vmlinux

Hello everyone,

I am trying to port kernel 2.6.19 onto my system.so I need the c code
, which can show me where the program is running. I add -g when I
compile it.

after I got the vmlinux( uncompressed) I used arm-none-eabi-objcopy
--change-addresses 0x40000000 to change the start address.

it seems that the debug information is strange. expecially after the
mmu is turned on , it totally disappreared.

anyone knows how to handle this?

thanks in advance.

regards,

yang
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