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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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4
boot/README.md
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@ -39,7 +39,7 @@ a second loader is correct exactly when it satisfies it.
| Framebuffer | `VBE_INFO_ADDR` | address, pitch, width, height, depth |
| Verbose flag | `BOOT_VERBOSE_FLAG_ADDR` | set by the F8 menu |
The addresses are defined once, in `include/memlayout.h` and `include/schboot.h`.
The addresses are defined once, in `include/arch/memlayout.h` and `include/arch/schboot.h`.
The kernel does not care which firmware produced them.
## The entry point
@ -50,7 +50,7 @@ triple fault with no console, so the kernel publishes an entry that takes the
machine as it already is.
`kernel/arch/x86_64/entry.S` carries a `sch64_header` — magic `SCH64BOO`,
8-byte aligned within the first 16 KB, followed by a 64-bit physical address —
found by scanning. `include/schboot.h` holds the magic so loader and kernel
found by scanning. `include/arch/schboot.h` holds the magic so loader and kernel
cannot disagree.
The 32-bit multiboot entry is still in `entry.S` and now has no caller: the