A (very simple) way of finding malloc() in IOS

I suppose this is the simplest way of finding malloc() as IOS tells you exactly where it is!

Does do a ‘show mem’, and IOS gives you the ‘Alloc PC’ which is the address of the callsite where malloc is called.  There are quite a number (nearly 20) of these mallocs, all of them calling a common function _malloc (or whatever you want to call it) but with slightly different arguments.  The malloc wrappers also provide the Alloc PC address as an argument (which is derived from the return address) to _malloc.

I guess finding malloc is just a matter of reading an address provided by IOS!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s