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

Robert Bu
2007-11-15T02:43:26Z

-----Original Message-----
From: Michael Snyder
Sent: 2007-11-14 19:44

> 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!
>

Yes, this is a workaround for read-only section. However, it does not
work for self-modifying code.
Thanks anyway.

Robert.