Re: [ECOS] RedBoot + Configuration tool 2.11 question

["G.Muruganandam" <gmuruga at gdatech dot com>]

Hi Jonathan,


I have observed the following when I looked at the RAM memory after 
stopping the program execution
using the JTAG debugger( Vision Probe from Windriver).


From the mapfile, it shows that, starting from locations 0x00040xxx, there 
should be a code related to
init_tab. But all these location contents are 0xFFFFFFFF in the memory 
starting from 0x0003x_xxxx . The RAM location
 contents are similar to ROM location contents. In the sense that the ROM 
memory location starting
from 0xC403_xxxx contains only FFFF_FFFF all through the end of 8MB memory.


Is there anything in the configuration that I  missed  when I build the 
redboot?

regards
G.Muruganandam


> > ecos.table.RedBoot_inits.data.0000do_flash_init
> >                 0x00040964        0x4 
> > redboot-Aug8/Firmware0522/bootmonitor/src/build/install/lib/extras.o
> >                 0x00040964                _init_tab_0000do_flash_init
> >  .ecos.table.RedBoot_inits.data.0000load_flash_config
> >                 0x00040968        0x4 
> > redboot-Aug8/Firmware0522/bootmonitor/src/build/install/lib/extras.o
> >                 0x00040968                _init_tab_0000load_flash_config
> >  .ecos.table.RedBoot_inits.data.9999net_init
> >                 0x0004096c        0x4 redboot-Aug8











> > Date: Fri, 08 Aug 2003 15:47:17 -0700
> > To: Jonathan Larmour <jifl@eCosCentric.com>
> > From: "G.Muruganandam" <gmuruga@gdatech.com>
> > Subject: Re: [ECOS] RedBoot + Configuration tool 2.11 question
> > Cc: Andrew Lunn <andrew@lunn.ch>, eCos Discussion 
> > <ecos-discuss@sources.redhat.com>
> >
> > Hello Jonathan and Andew,
> >
> > Thanks for providing the step to get the mapfile. I have provided below 
> > the part of mapfile generated.
> >
> >
> > ecos.table.RedBoot_inits.data.0000do_flash_init
> >                 0x00040964        0x4 
> > redboot-Aug8/Firmware0522/bootmonitor/src/build/install/lib/extras.o
> >                 0x00040964                _init_tab_0000do_flash_init
> >  .ecos.table.RedBoot_inits.data.0000load_flash_config
> >                 0x00040968        0x4 
> > redboot-Aug8/Firmware0522/bootmonitor/src/build/install/lib/extras.o
> >                 0x00040968                _init_tab_0000load_flash_config
> >  .ecos.table.RedBoot_inits.data.9999net_init
> >                 0x0004096c        0x4 redboot-Aug8
> >
> >
> > At address 0x00040964 there is a do_flash function. I have included a 
> > printf statement at the beginning of "do_flash"
> > function. But I am not seeing that printf getting executed.
> >
> > Could please let me know what could be missing or wrong?
> >
> > regards
> > G.Muruganandam
> >
> >
> >
> >
> > At 08:02 PM 8/8/2003 +0100, Jonathan Larmour wrote:
> > > G.Muruganandam wrote:
> > > > Hello Jonathan,
> > > > Could please see my comments in-line and reply?
> > > > regards
> > > > G.Muruganandam
> > > > At 04:43 AM 8/8/2003 +0100, Jonathan Larmour wrote:
> > > >
> > > > > G.Muruganandam wrote:
> > > > >
> > > > > > I did print out   init_entry->fun, it  shows 0xffffffff
> > > > > > It looks like the entries have not been populated with the correct 
> > > > > > function pointers.
> > > > > > Could you please let me know how this can be resolved?
> > > > >
> > > > >
> > > > > Generate a linker map and find out where that entry should have come 
> > > > > from. Relink redboot and add -Wl,-Map,mapfile to the link line.
> > > >
> > > > Would it be possible for you to list the steps to do the above step?
> > >
> > > In your CDL configuration edit CYGBLD_GLOBAL_LDFLAGS and append 
> > > -Wl,-Map,mapfile then save and rebuild. Or uncomment and change the 
> > > user_value for CYGBLD_GLOBAL_LDFLAGS in ecos.ecc in the command line 
> > > tools if that's what you are using.
> > >
> > > When you rebuild redboot, you'll probably find "mapfile" in 
> > > redboot/current/mapfile in your build tree (or v2_0 instead of current 
> > > if using eCos 2.0).
> > >
> > > > > Last I knew the intel tools worked (although they may have been 
> > > > > updated since I last used them).
> > > >
> > > > I am currently using the Intel's Xscale toolcahin xscale-010827
> > >
> > > There are other versions, up to 021022
> > > http://www.intel.com/design/intelxscale/dev_tools/021022/index.htm
> > >
> > > Jifl
> > > --
> > > eCosCentric    http://www.eCosCentric.com/  The eCos and RedBoot experts
> > > --[ "You can complain because roses have thorns, or you ]--
> > > --[  can rejoice because thorns have roses." -Lincoln   ]-- Opinions==mine
> > >
> > >
> > > --
> > > Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> > > and search the list archive: http://sources.redhat.com/ml/ecos-discuss


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