Re: how to r/w memory

[Paul Pluzhnikov <ppluzhnikov at google dot com>]

On Mon, Jun 15, 2009 at 10:47 PM, loody<miloody@gmail.com> wrote:

> From the gdb document, we can use "x/nfu address" to read memory, but
> how we can write it?

I usually do:
  (gdb) set *(int *)0x80000000 = 0

If GDB knows has debug info associated with the memory location,
  (gdb) print var = 2
or
  (gdb) set var = 3
also work for me.

If GDB knows the symbol, but doesn't have debug info for it, you'll have
to do cast again:
  (gdb) set *(int *)&var = 4

Cheers,
-- 
Paul Pluzhnikov