Whats things the gdbserver and gdb communicates when startup a program?

Whats things the gdbserver and gdb communicates when startup a program?

[Bin Chen]

Hello,

I am debugging a remote program in a MIPS board. This program is small
but it uses a large library(8M bytes, stripped). The library in my
host is far more large, unstripped, about 10M bytes.
When I start the program in the target:

gdbserver :9988 GtkLanucher

Then start gdb from host:

gdb GtkLauncher

blahblahblah...
> target remote 192.168.3.2:9988

Then the gdb stuck(actually is transferring some data thru network,
according the capture from ethereal).
Honestly my target's network card is buggy, not capable to run in a
long time. After several minutes, all things broken...

I just want to know whats data is transfered? In my case how much data
need to transferred to / from target/host?

Thanks.
Bin

Re: Whats things the gdbserver and gdb communicates when startup a program?

[Daniel Jacobowitz]

On Wed, Feb 13, 2008 at 09:40:32PM +0800, Bin Chen wrote:
> I just want to know whats data is transfered? In my case how much data
> need to transferred to / from target/host?

You can use "set debug remote" and the GDB manual to see what is
transferred.

-- 
Daniel Jacobowitz
CodeSourcery

Re: Whats things the gdbserver and gdb communicates when startup a program?

[Bin Chen]

On Wed, Feb 13, 2008 at 9:45 PM, Daniel Jacobowitz <drow@false.org> wrote:
> On Wed, Feb 13, 2008 at 09:40:32PM +0800, Bin Chen wrote:
>  > I just want to know whats data is transfered? In my case how much data
>  > need to transferred to / from target/host?
>
>  You can use "set debug remote" and the GDB manual to see what is
>  transferred.
>
Thanks!
Do you think it is normal for the 10Mbps network card use hundreds of
second to transfer the gdb data for my 10M + library size?

Bin

Re: Whats things the gdbserver and gdb communicates when startup a program?

[Daniel Jacobowitz]

On Wed, Feb 13, 2008 at 10:27:20PM +0800, Bin Chen wrote:
> Thanks!
> Do you think it is normal for the 10Mbps network card use hundreds of
> second to transfer the gdb data for my 10M + library size?

No.  It doesn't transfer the library.  Startup data is usually no more
than 2K.

-- 
Daniel Jacobowitz
CodeSourcery

Re: Whats things the gdbserver and gdb communicates when startup a program?

[Bin Chen]

OK, I try to find the problem.

On Wed, Feb 13, 2008 at 10:37 PM, Daniel Jacobowitz <drow@false.org> wrote:
> On Wed, Feb 13, 2008 at 10:27:20PM +0800, Bin Chen wrote:
>  > Thanks!
>  > Do you think it is normal for the 10Mbps network card use hundreds of
>  > second to transfer the gdb data for my 10M + library size?
>
>  No.  It doesn't transfer the library.  Startup data is usually no more
>  than 2K.
>
>  --
>  Daniel Jacobowitz
>  CodeSourcery
>