readelf O/P of romiage(linuxbios+etherboot) question

Hi,

In my romimage with linuxbios+etherboot payload, I do not see
any section header, whereas in an EPIA romimage which
I got from forum seems to have EPIA section  headers.
Should this be OK ? Should there be some problem with 
the build,etc? Or it is just fine..
****readelf -a O/P of my romimage with linuxbios+etherboot payload*****
ELF Header:
  Magic:   7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
  Class:                             	       	ELF32
  Data:                              	       	2's complement, little endian
  Version:                         	       	1 (current)
  OS/ABI:                         	       	UNIX - System V
  ABI Version:                 	       	0
  Type:                             	       	EXEC (Executable file)
  Machine:                        	       	Intel 80386
  Version:                          	       	0x1
  Entry point address:     	       	0x20000
  Start of program headers:        	52 (bytes into file)
  Start of section headers:          	0 (bytes into file)
  Flags:                             	       	0x0
  Size of this header:                   	52 (bytes)
  Size of program headers:         	32 (bytes)
  Number of program headers:  	2
  Size of section headers:          	0 (bytes)
  Number of section headers:    	0
  Section header string table index:   0

There are no sections in this file.

Program Headers:
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
  NOTE           0x000074 0x00000074 0x00000074 0x0003c 0x0003c RWE 0
  LOAD           0x0000b0 0x00020000 0x00020000 0x03dd9 0x12faf RWE 0

There is no dynamic segment in this file.

There are no relocations in this file.

There are no unwind sections in this file.
****readelf -a O/P of my ROM image*****

****readelf -a O/P of my EPIA romimage with linuxbios+etherboot payload*****

ELF Header:
  Magic:   7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
  Class:                             		ELF32
  Data:                              		2's complement, little endian
  Version:                           		1 (current)
  OS/ABI:                            		UNIX - System V
  ABI Version:                       	0
  Type:                              		EXEC (Executable file)
  Machine:                           		Intel 80386
  Version:                           		0x1
  Entry point address:               	0x94000
  Start of program headers:          	52 (bytes into file)
  Start of section headers:          	13956 (bytes into file)
  Flags:                             		0x0
  Size of this header:               	52 (bytes)
  Size of program headers:           	32 (bytes)
  Number of program headers:         	1
  Size of section headers:           	40 (bytes)
  Number of section headers:         	6
  Section header string table index: 	5

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
  [ 1] .text             PROGBITS        00094000 000060 002ecc 00 WAX  0   0  4
  [ 2] .rodata           PROGBITS        00096ee0 002f40 000653 00   A  0   0 32
  [ 3] .data             PROGBITS        00097540 0035a0 0000b4 00  WA  0   0 32
  [ 4] .bss              NOBITS          00097600 003660 003b28 00  WA  0   0 32
  [ 5] .shstrtab         STRTAB          00000000 003660 000024 00      0   0  1
Key to Flags:
  W (write), A (alloc), X (execute), M (merge), S (strings)
  I (info), L (link order), G (group), x (unknown)
  O (extra OS processing required) o (OS specific), p (processor specific)

Program Headers:
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
  LOAD           0x000060 0x00094000 0x00094000 0x035f4 0x07128 RWE 0x20

Section to Segment mapping:
  Segment Sections...
   00     .text .rodata .data .bss

There is no dynamic segment in this file.

There are no relocations in this file.

There are no unwind sections in this file.

No version information found in this file.
*****End******

Regards
Deepak

[ron minnich]

For this level of debugging I usually use xxd. See what you see with that.

ron

[Deepak Kotian]

This seems to be hexdump utility like od -cx, what exactly one should look
for in this to convince onself that the romimage is OK, any pointers ?

----- Original Message -----
From: "ron minnich" 
To: 
Cc: 
Sent: Monday, May 05, 2003 8:02 PM
Subject: Re: readelf O/P of romiage(linuxbios+etherboot) question
> For this level of debugging I usually use xxd. See what you see with that.
>
> ron
>
> Linuxbios mailing list
> [e-mail]
> http://www.clustermatic.org/mailman/listinfo/linuxbios

[ron minnich]

On Tue, 6 May 2003, Deepak Kotian wrote:
> This seems to be hexdump utility like od -cx, what exactly one should look
> for in this to convince onself that the romimage is OK, any pointers ?

Look at the image that works and the one that does not and you will see 
what you need to look for.

I am being a bit obscure here because I feel you need to spend some time 
working this out.

thanks

ron