Cisco interview records

Cisco is one of my favorite companies.

Interview Today

I mainly asked the following questions:

Can the main function be inline?

Differences between inline functions and macros

Differences between system and kernel states and their conversion

 

One of them did not answer the question, that is, how to know the free amount when malloc is free.

This reminds me of it on the way back to the house.

 

Dalloc chunk Bin

And

Buddy system in kmalloc

 

In addition, when the inline function is too large, it will be changed to a normal function.

In addition, inline is not consumed by calling. It is optimized through "procedural integration" of the compiler. This is not detailed on the Internet.