It takes a long time to disassemble some instructions for remote target

Hello all,

    When I try to disassemble a range of instructions, for
example from
PC1 to PC2, GDB tries to fetch and disassemble the
instructions one by
one. This may not be a problem for native debugging, or for
remote
debugging with high connection speed. However, it takes some
long time
for a not so fast serial connection, since GDB fetches one
instruction
at a time, which results in a lot of 'm' packets.
    Is that possible for GDB to fetch all instructions back
for one time
with just one(maybe more than one, but now a lot of) 'm'
packet, and
disassemble them locally one by one?

Thanks.
Robert.
20071114

On Wed, 2007-11-14 at 16:39 +0800, Robert Bu wrote:
> Hello all,
> 
>     When I try to disassemble a range of instructions,
for example from
> PC1 to PC2, GDB tries to fetch and disassemble the
instructions one by
> one. This may not be a problem for native debugging, or
for remote
> debugging with high connection speed. However, it takes
some long time
> for a not so fast serial connection, since GDB fetches
one instruction
> at a time, which results in a lot of 'm' packets.
>     Is that possible for GDB to fetch all instructions
back for one time
> with just one(maybe more than one, but now a lot of)
'm' packet, and
> disassemble them locally one by one?

My friend, I have just the thing you need!
It slices!  It dices!  It prevents gdb from 
needlessly fetching memory from text sections!

All ya gotta do is type "set trust-readonly"!
And if ya don't trust me (but who am I kidding, 
EVERYBODY trusts a carny!), you can just type
"help set trust-readonly" and read all about it
yourself!

And this magic elixir is yours, my friend, for
not two dollars, not one dollar, but absolutely free!