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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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6
tools/python/mklogo.py
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@ -4,7 +4,7 @@
Why this exists rather than a PNG decoder in the kernel: the boot logo is one
fixed image that changes about never, so decoding it at runtime would mean
carrying an inflate implementation in the kernel forever to answer a question
that is already known at build time. Precedent is include/font.h, which is the
that is already known at build time. Precedent is include/gfx/font.h, which is the
same trade for the same reason.
Output is an 8-bit coverage mask, not colour. The logo is a single-colour
@ -13,7 +13,7 @@ is ink -- which lets the kernel composite it in whatever the theme's accent
happens to be, anti-aliased, at one byte per pixel. Storing RGB would be four
times the size and would hardcode a colour into the kernel image.
python3 tools/python/mklogo.py docs/branding/shift-mask.png include/logo.h 128
python3 tools/python/mklogo.py docs/branding/shift-mask.png include/gfx/logo.h 128
"""
import sys, zlib, struct
@ -161,7 +161,7 @@ def main():
f.write('//\n')
f.write('// An ink-coverage mask, not colour: 0 is background and full scale is\n')
f.write('// solid logo. Whoever draws it picks the colour, so the palette stays in\n')
f.write('// include/theme.h and can change without regenerating anything.\n')
f.write('// include/gfx/theme.h and can change without regenerating anything.\n')
f.write('//\n')
f.write('// Two pixels per byte, high nibble first. Included by boot/stage2main.c\n')
f.write('// as well as kernel/dev/vga.c, and stage2 must fit below the 0x10000\n')