nexoniarz/SchOS
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Rename Schunix to SchOS; the kernel becomes SchIFT

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Removes the "-unix" element and with it any trademark exposure to The
Open Group.

The split follows the ecosystem layout: SchOS is the system, and the
kernel has its own name. Kernel-identity strings are the only places
that take SchIFT -- uname(2) sysname, /proc/version, and the two licence
sentences that say "kernel" outright. That is what every Unix does here:
`uname -s` on Linux reports the kernel, not the distribution. Everything
a user reads as the product -- panic screen, boot menu, error prefixes,
docs, LICENSE, NOTICE -- is SchOS.

schunix.img is schos.img, the logo assets and the musl TLS patch are
renamed, and __SCHUNIX__ is __SCHOS__ (the define and the patch that
consumes it moved together).

Two things the rename broke, both found by the bootcheck suite:

  - shmtest wrote "SCHUNIX-MMAP-OK" with a hardcoded length of 15 and
    compared it back by hand-counted offsets (m[3]=='U', m[14]=='K').
    The shorter marker left the write running two bytes past the literal
    and the compare reading past the data, failing a file-backed mmap
    that was working correctly. Now written and compared through one
    constant with sizeof.
  - bootcheck asserted a 31-byte file after appending to
    "hello-from-schunix"; the shorter string makes it 29.

Both are the same mistake: a string literal whose length is written out
somewhere else. Full suite green -- base, Tty, Ps, Sock, Fb, Usb, Evdev.
This commit is contained in:
Nexoniarz 2026-08-09 14:09:59 +02:00
commit e04ca28812
83 changed files with 520 additions and 601 deletions
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4
ports/mksh/Makefile
View file

@ -1,6 +1,6 @@
# SPDX-License-Identifier: Apache-2.0
# mksh (MirBSD Korn Shell) — permissive: https://www.mirbsd.org/mksh.htm
# Installed as /bin/sh — Schunix standardizes on "sh" as the one shell name;
# Installed as /bin/sh — SchOS standardizes on "sh" as the one shell name;
# no ksh/dash/other aliases are installed or looked up by init.
include ../mk/port.mk
@ -10,7 +10,7 @@ MKSH_URL := http://www.mirbsd.org/MirOS/dist/mir/mksh/mksh-$(MKSH_VERSION).t
TARBALL := $(DISTDIR)/mksh-$(MKSH_VERSION).tgz
CFLAGS := -static -D__SCHUNIX__ -I$(MUSL)/include -fno-stack-protector
CFLAGS := -static -D__SCHOS__ -I$(MUSL)/include -fno-stack-protector
LDFLAGS := -static -L$(MUSL)/lib -lc
$(TARBALL): | $(DISTDIR)