Is it possible to have gdb log something to the terminal instead of breaking on it? For example I would like to set a 'breakpoint' on some method and have gdb print self as well as the parameters each time the method is invoked. Basically I want to insert print statements into arbitrary places without actually recompiling.
thanks for any suggestions
This is what i have so far after these helpful comments:
define logFoo
b fooMethod
commands
po self
end
end
GDB doesn't seem to like the nested end statements though. any thoughts?
You can use Breakpoint Command Lists. There is an example how to do it.
For example, here is how you could use
breakpoint commands to print the value
of x at entry to foo whenever x is
positive.
break foo if x>0
commands
silent
printf "x is %d\n",x
cont
end
Use a breakpoint as usual, and set a macro to log and continue:
define c
print "foo"
cont
c
end
No, this is not possible. You can only hook into the symbols of the code and machine code. If you want to log output you will need a logging functionality.
If you are tracing specific errors try conditional breakpoints and watch variables.
EDIT:
Even while not directly loggin it could be an alternative to use GDB command files
