26bca020b6
Nexoniarz is the sole author and SchOS was never published under Apache-2.0, so this is a straight relicence. LICENSE is the FSF GPLv2 text, every first-party SPDX header moves to GPL-2.0-or-later, and NOTICE, README.md, docs/licensing.md and the site say so. projects/schfs-linux follows the rest of the tree. The GPL gives copyleft: a fork has to ship its source. It also lifts the old "Linux drivers, never" rule, since GPL-2.0-only code combines with GPL-2.0-or-later. "Or later" leaves room for GPLv3, but one binary still has to pick one version, so docs/licensing.md now keeps Apache-2.0 and GPLv3 code out of the kernel to keep Linux code possible there. BSD 4-clause code goes from "avoid" to "no", because the advertising clause is GPL-incompatible. LDLS still ships no .ko. That boundary is now project policy rather than a legal requirement, and ldls.md, devices.md and licensing.md section 6 say so. refmod declares license=GPL, and ldls-check passes (27 checks). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
44 lines
1.5 KiB
Makefile
44 lines
1.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-or-later
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# lwIP — the TCP/IP stack. BSD-3-clause (no advertising clause); see COPYING in
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# the tarball and docs/licensing.md.
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#
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# Unlike every other port here, nothing is installed into the sysroot: lwIP is
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# *kernel* code. This directory only fetches and unpacks it, and the top-level
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# Makefile compiles the files it wants straight into the kernel, against the
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# port headers in kernel/net/lwip/. That is why there is no build or install
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# rule below and no dependency on musl.
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#
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# Chosen over taking a BSD kernel's netinet, and the reason is not licensing --
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# FreeBSD's is BSD-3 too. It is that FreeBSD's stack is not a library: it reaches
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# into mbufs, epoch(9), netisr, VNET and uma(9), so adopting it means porting
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# FreeBSD's kernel infrastructure first. lwIP was written for precisely this
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# situation, a small OS with a raw Ethernet driver, and its port layer is a
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# handful of files. See docs/roadmap.md phase 2.
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include ../mk/port.mk
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LWIP_VERSION := 2.2.0
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LWIP_URL := https://download.savannah.nongnu.org/releases/lwip/lwip-$(LWIP_VERSION).zip
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TARBALL := $(DISTDIR)/lwip-$(LWIP_VERSION).zip
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$(TARBALL): | $(DISTDIR)
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curl -fsSL -o $@ $(LWIP_URL)
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download: $(TARBALL)
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$(SRCDIR): $(TARBALL)
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mkdir -p $(PORTDIR)
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cd $(PORTDIR) && unzip -q $(abspath $<)
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mv $(PORTDIR)/lwip-$(LWIP_VERSION) $@
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# The kernel build depends on this directory existing, nothing more.
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all: | $(SRCDIR)
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install:
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clean:
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rm -rf $(PORTDIR)
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distclean: clean
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rm -f $(TARBALL)
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