KSTACK_CONTAINS(9)

💅 KSTACK_CONTAINS(9) 💅

okay so this one is straight from the Kernel Developer's Manual, and it's all about kstack_contains — the lowkey iconic function that checks if an address range is living inside a thread's kernel stack. no cap, it's giving address-range vibe check. ✨

🌸 NAME 🌸

kstack_contains — determine if an address range lies within the kernel stack for a thread

✨ SYNOPSIS ✨

#include <machine/stack.h>

bool
kstack_contains(struct thread *td, vm_offset_t va, size_t len);

🦋 DESCRIPTION 🦋

bestie, kstack_contains() is here to determine whether a given address range falls within the kernel stack for the thread pointed to by td. that's the whole main character job. 🫶

💖 RETURN VALUES 💖

The function kstack_contains() returns true if the range of addresses [va..( va+len-1)] (both addresses inclusive) lies within the kernel stack for the thread pointed to by argument td, or returns false otherwise. slay. ✅

💀 ERRORS 💀

This function does not return an error. so no error era, bestie — it's literally not that kind of function. 🙈

🌈 SEE ALSO 🌈

• kproc(9)
• kthread(9)

kisses and sparkles 🎀 this page is from Debian, dated May 2, 2023, and it's the KSTACK_CONTAINS(9) manual page. periodt. 💜