[ECOS] arm-elf-objcopy

[Aravind B <arvindb at cranessoftware dot com>]

> >On Tue, 2004-07-20 at 05:29, Aravind B wrote:
> On Tue, 2004-07-20 at 16:55, Gary Thomas wrote:
> > On Tue, 2004-07-20 at 05:18, Aravind B wrote:
> > > hi,
> > > i am trying to convert .elf to .hex file using the command
> > > arm-elf-objcopy -O ihex receive.elf receive.hex.
> > > My .elf file is 4.2Mb. But my .hex file size is 9 Mb which is
beyound my
> > > flash capacity.
> > > So is there any way to reduce the size of .hex file
> > 
> > How big is the actual data?  Use "arm-elf-size" to see this.
> > Maybe look at the headers to see if there is some reason for this
> > huge size.  Can you send the output of "arm-elf-objdump -h"?
> > 
> arm-elf-objdump receive.elf -h
> 
> receive.elf:     file format elf32-littlearm
> 
> Sections:
> Idx Name          Size      VMA       LMA       File off  Algn
>   0 .rom_vectors  00000040  40000000  40000000  00008000  2**0
>                   CONTENTS, ALLOC, LOAD, READONLY, CODE
>   1 .text         0002cee8  40000040  40000040  00008040  2**2
>                   CONTENTS, ALLOC, LOAD, READONLY, CODE
>   2 .fini         00000000  4002cf28  4002cf28  0004868c  2**0
>                   CONTENTS
>   3 .rodata       0000c614  4002cf28  4002cf28  00034f28  2**2
>                   CONTENTS, ALLOC, LOAD, READONLY, DATA
>   4 .rodata1      00000000  4003953c  4003953c  0004868c  2**0
>                   CONTENTS
>   5 .fixup        00000000  4003953c  4003953c  0004868c  2**0
>                   CONTENTS
>   6 .gcc_except_table 00000000  4003953c  4003953c  0004868c  2**0
>                   CONTENTS
>   7 .fixed_vectors 00000140  10000020  10000020  000486a0  2**5
>                   CONTENTS, READONLY
>   8 .data         0000068c  10008000  4003953c  00048000  2**2
>                   CONTENTS, ALLOC, LOAD, DATA
>   9 .bss          00033318  1000868c  1000868c  0005068c  2**5
>                   ALLOC
>  10 .comment      00000a9e  00000000  00000000  0005068c  2**0
>                   CONTENTS, READONLY

> Your program is actually only about 200KB.  I think the problem may
> be the disparate sections confusing the ihex format (which IIRC is
> rather simpleminded).  

> Why are you converting to ihex anyway?  to use with e FLASH programmer
> or JTAG unit?  Can't you use some other format, like Motorola 
> S-records?

 Flash chip i am using supports only intel format as it intel chip.



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