Hi WSL,
Shuanglin Wang wrote:
I'm porting uClinux to our board based on ARM946E-S. Now, I generated an
uncompressed uClinux kernel image and romfs (txt+data+romfs) with
command like:
cat image.txt image.data romfs > image.bin
And objdumping results like:
===================================================================================
>arm-elf-objdump -h linux-2.6.x/linux
linux-2.6.x/linux: file format elf32-littlearm
Sections:
Idx Name Size VMA LMA File off Algn
0 .init 0000c000 00008000 00008000 00008000 2**5
CONTENTS, ALLOC, LOAD, CODE
1 .text 000a5384 00014000 00014000 00014000 2**5
CONTENTS, ALLOC, LOAD, READONLY, CODE
2 .pci_fixup 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
3 .rio_route 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
4 __ksymtab 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
5 __ksymtab_gpl 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
6 __ksymtab_unused 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
7 __ksymtab_unused_gpl 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
8 __ksymtab_gpl_future 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
9 __kcrctab 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
10 __kcrctab_gpl 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
11 __kcrctab_unused 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
12 __kcrctab_unused_gpl 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
13 __kcrctab_gpl_future 00000000 000ba000 000ba000 000d7500 2**0
CONTENTS
14 __param 00000050 000ba000 000ba000 000ba000 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
15 .data 0001b500 000bc000 000bc000 000bc000 2**5
CONTENTS, ALLOC, LOAD, DATA
16 .bss 0000a2a0 000d7500 000d7500 000d7500 2**5
ALLOC
17 .comment 000010f2 00000000 00000000 000d7500 2**0
CONTENTS, READONLY
============================================================================
Instead of a standard Linux bootloader. Our board has a simple
bootloader, which can
1. Copy image to some place in main memory;
2. Transfer the control to kernel.
My questions are:
Where should I put the uClinux kernel at 0x00008000 in the main memory?
Yes, this would be consistent with the why the ARMulator sections are
setup and run.
Do I need to make some changes on our bootloader for booting uClinux?
Probably not. The uClinux startup is pretty simple, typically you
just need to get the kernel into RAM and start executing it.
Regards
Greg
------------------------------------------------------------------------
Greg Ungerer -- Chief Software Dude EMAIL: [EMAIL PROTECTED]
Secure Computing Corporation PHONE: +61 7 3435 2888
825 Stanley St, FAX: +61 7 3891 3630
Woolloongabba, QLD, 4102, Australia WEB: http://www.SnapGear.com
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