handle mmap and custom allocator

[ampotos]

Today dynStruct can only wrap malloc/calloc/realloc and free as memory managment function. It is possible to wrap this functions in another lib than the LibC via the "-a" option but they have to have the same args/return then the libC's fucntions.

Begin able to handle mmap and custom allocator will be a very good feature and will help do handle other languages memory managment system.

• Defining description of memory managment function
• implment parsing of this description
• wrap function as describe in the description in the data gatherer
• Write doc of the description
• Allow descrition to use binary file addresses instead of name for stripped custom allocator

Descriptions to write:

• libC functions
• Cpp functions
• Rust functions
• Go functions
• mmap
• brk (for old style allcoator)

[ampotos]

If libstdc++.so is monitored it's actually possible to see all allocation made by new (which call malloc).