Add to symbol table for reverse engineering?

[Daniel Jacobowitz]

On Wed, Jul 18, 2007 at 02:56:39PM -0700, Nate Eldredge wrote:
> I am trying to reverse engineer a stripped binary using gdb.  I wonder if there 
> is a way to interactively add symbols as I go.  For example, suppose I discover 
> that 0xdeadbeef is the address of a function that does "foo". Presumably the 
> binary originally had an entry "foo = 0xdeadbeef" in its symbol table, which is 
> now gone.  I would like to be able to "put it back" and use it with gdb's 
> convenient symbol features.  For instance, if I come across a "call 0xdeadbeef" 
> instruction elsewhere in the program, I would like the gdb disassembler to tag 
> it as "call 0xdeadbeef <foo>".  Is there any way to do this?  I didn't see such 
> a thing in the manual.

Not using GDB.  But you can probably do it with objcopy on the binary.

-- 
Daniel Jacobowitz
CodeSourcery