[ECOS] Memory footprint

[Emmanuel Viollet]

Andrew Lunn a écrit :
> On Wed, May 10, 2006 at 11:08:49AM +0200, Emmanuel Viollet wrote:
>> Hi.
>>
>> I can't find any information on this on the internet, so perhaps you can 
>> help me out...
>>
>> I need to compile a kernel with PPP. Do you have any idea of the 
>> footprint of eCOS with lwIP and PPP?
>> I compiled a minimal program with PPP for my Olimex LPC2106 evaluation 
>> board, and it takes 560Kb.
>> Does this size seem normal?
> 
> Is that the size of the elf or the size of the binary which is
> actually loaded onto the target? 
> 
> what does arm-elf-size say?

$ arm-elf-size.exe a.out
    text    data     bss     dec     hex filename
   41920    1512    8028   51460    c904 a.out

I suppose that this means the binary will be 51460Kb in size?

I am using a Phlips 2106 processor with 128Kb EEPROM and 64Kb RAM.
Do you think I can fit in LwIP + PPP + Zlib in this?

The linker is giving me errors :
$ arm-elf-gcc -I../../ecos_install/include hello.c 
-L../../ecos_install/lib -Ttarget.ld -nostdlib
/usr/lib/gcc-lib/arm-elf/3.4.0/../../../../arm-elf/bin/ld: l'adresse 
0x2624c de a.out de la section .text n'est pas dans la région rom
/usr/lib/gcc-lib/arm-elf/3.4.0/../../../../arm-elf/bin/ld: l'adresse 
0x2624c de a.out de la section .fini n'est pas dans la région rom
/usr/lib/gcc-lib/arm-elf/3.4.0/../../../../arm-elf/bin/ld: l'adresse 
0x2aff1 de a.out de la section .rodata n'est pas dans la région
  rom
/usr/lib/gcc-lib/arm-elf/3.4.0/../../../../arm-elf/bin/ld: l'adresse 
0x2aff4 de a.out de la section .rodata1 n'est pas dans la région rom
/usr/lib/gcc-lib/arm-elf/3.4.0/../../../../arm-elf/bin/ld: l'adresse 
0x2aff4 de a.out de la section .fixup n'est pas dans la région rom
/usr/lib/gcc-lib/arm-elf/3.4.0/../../../../arm-elf/bin/ld: l'adresse 
0x2aff4 de a.out de la section .gcc_except_table n'est pas dans la 
région rom
/usr/lib/gcc-lib/arm-elf/3.4.0/../../../../arm-elf/bin/ld: l'adresse 
0x4001ca20 de a.out de la section .bss n'est pas dans la région ram

I'm sorry, but the error messages are in french.
 From what I gather, the code is too big for RAM and ROM?
"the address 0x2624c from a.out in section .text is not in the rom region"?

-- 
Emmanuel Viollet
Software engineer
Webdyn
e-mail : Emmanuel.Viollet@webdyn.com
Tel    : +33 (0)1 39 04 29 55

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