Where do you put your kernel stack ?

[nicesj]

Hi,

Where do you make your stack spaces?
What address? and how much?

[urxae]

Where do you make your stack spaces?
What address? and how much?

A simple way:

Code: Select all

void* new_kernel_stack = malloc(STACK_SIZE) + STACK_SIZE;

You can also use the page allocator to allocate some pages instead of using (k)malloc.
The usual size for a kernel stack is a small multiple of 4k. If you're using the page allocator you can leave a non-present page in front of it to get an exception when the stack overflows.