__init()

__init()

[raja]

Hi,
     Is there any way to execute my own __init() instead of default 
__init() while running an executable.

Re: __init()

[linux-os (Dick Johnson)]

On Thu, 11 Aug 2005, raja wrote:

> Hi,
>     Is there any way to execute my own __init() instead of default
> __init() while running an executable.
> -

Sure you link your object file with your own instead of using
the default....

     gcc -c -o myprog.o myprog.c
     as -o start.o start.S

     ld -o myprog myprog.o start.o /lib/libc.so.6
                         |       |              |___ runtime lib
                         |       |__________________ Your startup
                         |__________________________ Your program

Startup starts with a label _start. You may have to write it
in assembly. It calls main() and must never return. Instead
it calls exit() with whatever main() returned, to quit.

__init() is some M$ thing. Linux executables start with
_start().

Cheers,
Dick Johnson
Penguin : Linux version 2.6.12 on an i686 machine (5537.79 BogoMips).
Warning : 98.36% of all statistics are fiction.
.
I apologize for the following. I tried to kill it with the above dot :

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Thank you.

fdisk & LBA

[Nanakos Chrysostomos]

Hi all,i want to retrieve the partition table of a primary extended
partition.
My MBR partition table ,says that the LBA Partition Start sector for the
extended partition is 10281600.It is the same that i find with my C code
and through fdisk usage.
How can i use this value to seek(lseek) to this point through the main
block file (/dev/hda or /dev/hdb) and read the partition table of the
logical partition?



Thanks in advance.

Re: fdisk & LBA

[Lennart Sorensen]

On Fri, Aug 12, 2005 at 10:29:13PM +0300, Nanakos Chrysostomos wrote:
> Hi all,i want to retrieve the partition table of a primary extended
> partition.
> My MBR partition table ,says that the LBA Partition Start sector for the
> extended partition is 10281600.It is the same that i find with my C code
> and through fdisk usage.
> How can i use this value to seek(lseek) to this point through the main
> block file (/dev/hda or /dev/hdb) and read the partition table of the
> logical partition?

Multiply by the sector size (probably 512 bytes).

Len Sorensen