Tracking issue for kernel tracing

[hyyking]

Goal

Implement a nice logging infrastructure for the kernel AND the bootloader (so no allocations allowed). Looking at logs anyone should be able to (non-exhaustive):

• Follow page allocation/deallocation in a precise or grouped up view
• See fundamental modification operations (GDT/IDT/APIC)
• Follow task scheduling
• Follow system calls
• Follow drive operations
• Be able to debug most parts of the kernel

Tasks

• add logging to the bootloader Generic Unified Bootloader #7
• send structured logs to the console Serialisation support for logs bootloader + kernel #8
• replace log with tracing Replace log with tracing 👯  #9
• page allocation/deallocation
  • tracing in page_mapper
  • use spans for operations
  • support reduced map_range_* allocations logging
• fundamental modifications:
  • GDT
  • IDT
  • APIC (when supported)
• system calls (when supported)
• drive operations (when supported)
• scheduler (when supported)
• debuging
  • dbg! like macro