On Apr 22, 2009, at 2:20 PM, Daniel Child wrote:
(gdb) po *(int *)($ebp+8)
Cannot access memory at address 0x1
(gdb)
Something's still not right here. On Intel 32, $ebp+8 points to the
first argument in a function call, which would be the NSException
object passed into objc_exception_throw().
Are you sure you are trying this after, and **only** after, the
debugger hits objc_exception_throw(), but before continuing execution?
If so, are you sure you are looking at the top of the stack?
If it helps, I always put the following two debugger commands into my
objc_exception_throw breakpoints:
po *(int *)($ebp+8)
po $rdi
(The latter is for debugging 64-bit apps, since there's apparently no
way to set debugger commands on a per-architecture basis.)
Nick Zitzmann
<http://www.chronosnet.com/>
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