how to get double value from args?

[hellofrida]

objective-c
if args is int , args[2].toInt32() , it works,
but args[2] is double ,it not works,

i try to Memory.readDouble,Memor.readFloat,but fail,value is 0,
how to get double or float?

Frida 9.1.13
iphone4/frida-32

[oleavr]

Hi,

When working with floating point arguments, structs passed by value, etc. you have to use Interceptor.replace() and NativeCallback to have such arguments properly marshalled for you. There is currently no way to achieve this with a listener (Interceptor.attach()), as it does not know anything about the function's actual signature (by design).

Cheers!

[hellofrida]

thanks alot