[Prex-devel] Relocation problem on the Nintendo DS (ARM9)

[cyril.L <cy...@us...>]

Hi,
This is my first message here, and probably not the last :)
Thanks for your beautiful website and the clean documentation, this is 
why I choosed prex.

I am trying to port prex on the Nintendo DS.
My first problem is that relocation fails at boot time.

----------------
if I set DRIVER_BASE at AUTODETECT, I get the following :
----------------

Prex Boot Loader V1.00
loading: hdr=02002008 module=020030e4 name=prex

elf_load
kernel base=02100000
phys addr=02100000
p_flags=00000005
p_align=00008000
p_paddr=02100000
load: offset=02100000 size=00005a48
p_flags=00000006
p_align=00008000
p_paddr=02105a48
load: offset=02105a48 size=00000008
module size=00007400 entry=02100074
loading: hdr=02007c08 module=02003114 name=dev.ko

elf_load
driver base=02107400
phys addr=02107400
sh_addr=00000034
sh_size=00001c38
sh_offset=00000034
sh_flags=00000006
load: offset=02107434 size=00001c38
sh_addr=00001c6c
sh_size=00002244
sh_offset=00001c6c
sh_flags=00000002
load: offset=0210906c size=00002244
sh_addr=00003eb0
sh_size=00000150
sh_offset=00003eb0
sh_flags=00000003
load: offset=0210b2b0 size=00000150
module load_base=0210bc00 text=02107400
module size=00004800 entry=0210760c
R_ARM_PC24: 02107604 -> 1afffffd
Undefined symbol for rel[00000001] sym=0200be70
Panic: Load error

----------------
if I set DRIVER_BASE at 0x02200000, I get the following :
----------------

Prex Boot Loader V1.00
loading: hdr=02002008 module=020030e4 name=prex

elf_load
kernel base=02100000
phys addr=02100000
p_flags=00000005
p_align=00008000
p_paddr=02100000
load: offset=02100000 size=00005a48
p_flags=00000006
p_align=00008000
p_paddr=02105a48
load: offset=02105a48 size=00000008
module size=00007400 entry=02100074
loading: hdr=02007c08 module=02003114 name=dev.ko

elf_load
driver base=02200000
phys addr=02200000
p_flags=00000005
p_align=00008000
p_paddr=02200000
load: offset=02200000 size=00003ef8
p_flags=00000006
p_align=00008000
p_paddr=02203ef8
load: offset=02203ef8 size=0000013c
module size=00004800 entry=0220024c
loading: hdr=0200bdec module=02003144 name=boot

elf_load
task base=02204800
phys addr=02204800
sh_addr=00000034
sh_size=000008bc
sh_offset=00000034
sh_flags=00000006
load: offset=02204834 size=000008bc
sh_addr=000008f0
sh_size=000001c3
sh_offset=000008f0
sh_flags=00000002
load: offset=022050f0 size=000001c3
sh_addr=00000ab4
sh_size=00000000
sh_offset=00000ab3
sh_flags=00000003
load: offset=022052b4 size=00000000
module load_base=02205800 text=02204800
module size=00001000 entry=02204834
R_ARM_PC24: 02204848 -> ebffffff
Panic: relocation fail

----------

I doesn't use arm-elf toolchain, because there is one dedicated to the 
Nintendo DS, provided by devkitPro :

Target: arm-eabi
Configured with: ../../gcc-4.3.2/configure --enable-languages=c,c++ 
--with-cpu=arm7tdmi --enable-interwork --enable-multilib --with-gcc 
--with-gnu-ld --with-gnu-as --disable-shared --disable-threads 
--disable-win32-registry --disable-nls --disable-debug 
--disable-libmudflap --disable-libssp --disable-libgomp 
--disable-libstdcxx-pch --target=arm-eabi --with-newlib 
--prefix=c:/devkitPro/devkitARM 
--with-bugurl=http://wiki.devkitpro.org/index.php/Bug_Reports 
--with-pkgversion='devkitARM release 24'
Thread model: single
gcc version 4.3.2 (devkitARM release 24)


Thanks,
cyril