From: Gary Thomas <gthomas@redhat.com>
To: Carlo Agostini <carlo.agostini@yacme.com>
Cc: ecos-discuss@sources.redhat.com
Subject: Re: [ECOS] Problem with hello ... entry point
Date: Mon, 03 Sep 2001 20:40:00 -0000 [thread overview]
Message-ID: <999574659.2048.9.camel@station91> (raw)
In-Reply-To: <3B939F4F.D15734D4@yacme.com>
On 03 Sep 2001 17:18:39 +0200, Carlo Agostini wrote:
> Hi
>
> I have as soon as begun to use Redboot-eCos
> and wanted of the suggestions.
>
>
> I have get the current version of eCos packages via CVS
> I type the following in RedHat 7.1
>
> ecosconfig new pc redboot
> ecosconfig import ../i386/pc/...../redboot_FLOPPY.ecm
> I do not use the memory flash
>
> make
>
>
> I 've successfully compiled both redboot.bin & redboot.elf
>
> Redboot runs from a floppy disk on 486 pc
>
> I have two PC (486 and Pentium)that communicates through serial port(I
> use the program minicom(on Pentium))
>
> I load with the serial port the compiled program hello with the tools
> of i386-.
>
> I have loaded in memory RAM hello with the command load.
>
>
>
> Platform: PC (I386)
> Copyright (C) 2000, 2001, Red Hat, Inc.
>
> RAM: 0x00000000-0x000a0000, 0x00088680-0x000a0000 available
>
>
> load -v -r -m xmodem 0x00088680
>
Don't use "raw" loads here. Convert your ELF file to S-records using
'objcopy -O srec' and then use the RedBoot load command without '-r'.
>
> file loaded 0x00088680-0x00163f80
>
> Subsequently in memory I find
>
>
> du -b 0x00088680 -l 0xff
>
> 0x00088680: 7F45 4C46 0101 0100 0000 0000 0000 0000
> |.ELF............|
> 0x00088690: 0200 0300 0100 0000 0020 0000 3400 0000 |.........
> ..4...|
> 0x000886A0: 8C0B 0D00 0000 0000 3400 2000 0100 2800 |........4.
> ...(.|
> 0x000886B0: 1000 0D00 0100 0000 0010 0000 0020 0000 |.............
> ..|
> 0x000886C0: 0020 0000 4077 0100 E026 0200 0700 0000 |.
> ..@w...&......|
> 0x000886D0: 0010 0000 0000 0000 0000 0000 0000 0000
> |................|
> 0x000886E0: 0000 0000 0000 0000 0000 0000 0000 0000
> |................|
> 0x000886F0: 0000 0000 0000 0000 0000 0000 0000 0000
> |................|
> 0x00088700: 0000 0000 0000 0000 0000 0000 0000 0000
> |................|
> 0x00088710: 0000 0000 0000 0000 0000 0000 0000 0000
> |................|
> 0x00088720: 0000 0000 0000 0000 0000 0000 0000 0000
> |................|
> 0x00088730: 0000 0000 0000 0000 0000 0000 0000 0000
> |................|
> 0x00088740: 0000 0000 0000 0000 0000 0000 0000 0000
> |................|
> 0x00088750: 0000 0000 0000 0000 0000 0000 0000 0000
> |................|
>
>
> How I make to understand where is the entry point of the program hello ?
>
>
> Thanking you in advance.
>
> Carlo
next prev parent reply other threads:[~2001-09-03 20:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-03 8:17 Carlo Agostini
2001-09-03 20:40 ` Gary Thomas [this message]
[not found] ` <3B95DC90.F0202A01@yacme.com>
2001-09-05 1:14 ` Gary Thomas
2001-09-06 23:47 ` Jonathan Larmour
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