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include: one folder per subsystem, and includes that name it

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Sixty-five headers sat side by side in include/, so `#include "irq.h"`
said nothing about where irq.h was or what it belonged to, and errno.h,
stat.h and fcntl.h at the top shadowed the system's for any host tool
built with -I./include. They are in folders now -- arch/ core/ fs/
dev/ gfx/ net/ uapi/ (and ldls/ for the Linux driver layer) -- and
every include names the folder, as Linux's do: "core/proc.h".

Done mechanically and checked the hard way: the kernel built from this
tree disassembles identically to the one built from the tree before
it. The full image boots, and userland is the same set of programs.
Paths in docs and comments follow; docs/guides/layout.md has a table
of what is where, and tools/fix-includes.py rewrites old-style
includes from the folders in the tree, for code written before this.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S1giNvrHTrPMPw7V6x1kQ4
This commit is contained in:
Nexoniarz 2026-10-23 15:05:12 +02:00
commit a1c965da1e
267 changed files with 1560 additions and 1440 deletions
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24
kernel/arch/x86_64/trap.c
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@ -1,14 +1,14 @@
#include "types.h"
#include "defs.h"
#include "irq.h"
#include "param.h"
#include "memlayout.h"
#include "mmu.h"
#include "proc.h"
#include "x86.h"
#include "traps.h"
#include "spinlock.h"
#include "posix.h"
#include "core/types.h"
#include "core/defs.h"
#include "core/irq.h"
#include "core/param.h"
#include "arch/memlayout.h"
#include "arch/mmu.h"
#include "core/proc.h"
#include "arch/x86.h"
#include "arch/traps.h"
#include "core/spinlock.h"
#include "uapi/posix.h"
uint *idt;
extern addr_t vectors[];
@ -139,7 +139,7 @@ trap(struct trapframe *tf)
// interrupts used to be listed here one case at a time, which cannot work
// for anything found on the PCI bus: a driver does not know its line
// until it reads the device's config space at probe time, so there is no
// constant to write a case label for. See include/irq.h.
// constant to write a case label for. See include/core/irq.h.
if(tf->trapno >= T_IRQ0 && tf->trapno < T_IRQ0 + NIRQ){
irq_dispatch(tf->trapno - T_IRQ0);
lapiceoi();