Remove the notion of "sys*"

- This idea originates from very early in the project and was, at the
  time, a very easy way to categorise things.
- Now, it doesn't really make much sense - it is fairly arbitary, often
  occuring when there is a change in kernel, but not from builder-hex0
  to fiwix, and sysb is in reality completely unnecessary.
- In short, the sys* stuff is a bit of a mess that makes the project
  more difficult to understand.
- This puts everything down into one folder and has a manifest file that
  is used to generate the build scripts on the fly rather than using
  coded scripts.
- This is created in the "seed" stage.

stage0-posix -- (calls) --> seed -- (generates) --> main steps

Alongside this change there are a variety of other smaller fixups to the
general structure of the live-bootstrap rootfs.

- Creating a rootfs has become much simpler and is defined as code in
  go.sh. The new structure, for an about-to-be booted system, is

/
-- /steps (direct copy of steps/)
-- /distfiles (direct copy of distfiles/)
-- all files from seed/*
-- all files from seed/stage0-posix/*

- There is no longer such a thing as /usr/include/musl, this didn't
  really make any sense, as musl is the final libc used. Rather, to
  separate musl and mes, we have /usr/include/mes, which is much easier
  to work with.
- This also makes mes easier to blow away later.
- A few things that weren't properly in packages have been changed;
  checksum-transcriber, simple-patch, kexec-fiwix have all been given
  fully qualified package names.
- Highly breaking change, scripts now exist in their package directory
  but NOT WITH THE packagename.sh. Rather, they use pass1.sh, pass2.sh,
  etc. This avoids manual definition of passes.
  - Ditto with patches; default directory is patches, but then any patch
    series specific to a pass are named patches-passX.

steps/linux-4.9.10/pass1.sh

@@ -0,0 +1,68 @@
+# SPDX-FileCopyrightText: 2021-22 fosslinux <fosslinux@aussies.space>
+# SPDX-FileCopyrightText: 2022 Andrius Štikonas <andrius@stikonas.eu>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# XXX: Fix package after builder-hex0
+
+src_unpack() {
+    # Remove all previous source tarballs
+    mkdir /tmp/keep
+    for keep in deblob-4.9 ${pkg}.tar.gz musl-1.2.4.tar.gz curl-7.88.1.tar.bz2; do
+        mv "${DISTFILES}/${keep}" /tmp/keep
+    done
+    rm -r "${DISTFILES}/"*
+    mv /tmp/keep/* "${DISTFILES}"
+
+    mkdir "${pkg}"
+    mv "${DISTFILES}/deblob-4.9" "${pkg}/"
+    default || true # Predictable link errors - not a problem
+    rm "${DISTFILES}/${pkg}.tar.gz"
+}
+
+generate_autoconf_h() {
+    # generate include/linux/autoconf.h -- we do not have gperf rn to do it the normal way
+    mkdir -p include/generated
+    # Transform each of the CONFIG_* options that are =y into header
+    grep -E '=y$' .config | sed 's/=y$/ 1/' | sed 's/^/#define /' >> include/generated/autoconf.h
+    # Transform each of the CONFIG_* options that are unset into headers
+    grep -E ' is not set$' .config | sed 's/ is not set$//' | sed 's/#/#undef/' >> include/generated/autoconf.h
+    # Transform each of the non-boolean options into headers
+    grep -E '=.*$' .config | grep -v -E '=y$' | sed 's/=/ /' | sed 's/^/#define /' >> include/generated/autoconf.h
+}
+
+src_prepare() {
+    default
+
+    mv config .config
+    mkdir -p include/config
+    cp .config include/config/auto.conf
+
+    generate_autoconf_h
+
+    # Deblob the kernel
+    chmod +x deblob-4.9
+    ./deblob-4.9 --force
+
+    # Remove shipped files
+    find . -name "*_shipped*" -delete
+}
+
+src_compile() {
+    cp .config include/config/auto.conf
+    rm include/generated/autoconf.h
+    generate_autoconf_h
+
+    # Allow use of patched initramfs_list.sh (which is required anyway)
+    make "${MAKEJOBS}" ARCH=i386 prepare
+    PATH="${PWD}/usr:${PATH}" make "${MAKEJOBS}" ARCH=i386
+
+    # Clear up more space
+    find . -name '*.o' -delete
+}
+
+src_install() {
+    install -D -m 644 arch/i386/boot/bzImage "/boot/linux-4.9.10"
+    install -D -m 755 usr/gen_init_cpio "${PREFIX}/bin/gen_init_cpio"
+    install -D -m 755 scripts/gen_initramfs_list.sh "${PREFIX}/bin/gen_initramfs_list.sh"
+}

steps/linux-4.9.10/patches/bad-asm.patch

@@ -0,0 +1,18 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-2.0-only
+
+Remove the 68() which I'm not really sure what it does but still works and
+breaks our version of binutils.
+
+--- arch/x86/boot/bioscall.S	2021-07-31 17:50:09.519480274 +1000
++++ arch/x86/boot/bioscall.S	2021-07-31 18:21:32.086972277 +1000
+@@ -65,7 +65,7 @@
+ 	movw	%ax, %es
+ 
+ 	/* Copy output state from stack frame */
+-	movw	68(%esp), %di	/* Original %cx == 3rd argument */
++	movw	%sp, %di	/* Original %cx == 3rd argument */
+ 	andw	%di, %di
+ 	jz	4f
+ 	movw	%sp, %si

steps/linux-4.9.10/patches/disable-broken-check.patch

@@ -0,0 +1,22 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-2.0-only
+
+There's something incorrect with this macro for live-bootstrap, most likely as
+a result of the dodgy installation of linux-headers. However, there is no
+problem with this, and it is verified that BITS_PER_LONG __BITS_PER_LONG
+have functional and correct values.
+
+--- tools/include/asm-generic/bitsperlong.h	2021-07-31 11:50:26.616768608 +1000
++++ tools/include/asm-generic/bitsperlong.h	2021-07-31 11:50:36.786847443 +1000
+@@ -9,10 +9,6 @@
+ #define BITS_PER_LONG __WORDSIZE
+ #endif
+ 
+-#if BITS_PER_LONG != __BITS_PER_LONG
+-#error Inconsistent word size. Check asm/bitsperlong.h
+-#endif
+-
+ #ifndef BITS_PER_LONG_LONG
+ #define BITS_PER_LONG_LONG 64
+ #endif

steps/linux-4.9.10/patches/initramfs_list.patch

@@ -0,0 +1,17 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-2.0-only
+
+Use gen_initramfs_list.sh from outside kernel source tree.
+
+--- scripts/gen_initramfs_list.sh	2021-10-10 20:37:12.220231015 +1100
++++ scripts/gen_initramfs_list.sh	2021-10-10 20:37:22.694296140 +1100
+@@ -310,7 +310,7 @@
+ 			fi
+ 		fi
+ 		cpio_tfile="$(mktemp ${TMPDIR:-/tmp}/cpiofile.XXXXXX)"
+-		usr/gen_init_cpio $timestamp ${cpio_list} > ${cpio_tfile}
++		gen_init_cpio $timestamp ${cpio_list} > ${cpio_tfile}
+ 	else
+ 		cpio_tfile=${cpio_file}
+ 	fi

steps/linux-4.9.10/patches/linking.patch

@@ -0,0 +1,17 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-2.0-only
+
+This seemingly useless statement (redefined a couple of lines later) is
+not liked by our version of binutils.
+
+--- arch/x86/kernel/vmlinux.lds.S	2021-07-31 18:45:14.787124887 +1000
++++ arch/x86/kernel/vmlinux.lds.S	2021-07-31 18:43:16.234180449 +1000
+@@ -170,7 +170,6 @@
+ 		. = __vvar_beginning_hack + PAGE_SIZE;
+ 	} :data
+ 
+-       . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE);
+ 
+ 	/* Init code and data - will be freed after init */
+ 	. = ALIGN(PAGE_SIZE);

steps/linux-4.9.10/patches/regen.patch

@@ -0,0 +1,18 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-2.0-only
+
+We do not use the _shipped version of the keymap generated using loadkeys.
+For some reason the makefile needs to be patched for this to work...
+
+--- drivers/tty/vt/Makefile	2021-07-27 21:11:24.743104498 +1000
++++ drivers/tty/vt/Makefile	2021-07-27 21:11:34.261186200 +1000
+@@ -22,7 +22,7 @@
+ # Uncomment if you're changing the keymap and have an appropriate
+ # loadkeys version for the map. By default, we'll use the shipped
+ # versions.
+-# GENERATE_KEYMAP := 1
++GENERATE_KEYMAP := 1
+ 
+ ifdef GENERATE_KEYMAP
+ 

steps/linux-4.9.10/patches/remove-alternative-asm.patch

@@ -0,0 +1,34 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-2.0-only
+
+Our older version of binutils doesn't play very nicely with binutils for a
+couple of edgecase macros. It seems that ALTERNATIVE is one of these. As we
+know what your system will be (not Xen), we can manually evaluate and write
+out the ALTERNATIVEs.
+
+--- arch/x86/entry/entry_32.S	2021-07-31 11:40:07.458032771 +1000
++++ arch/x86/entry/entry_32.S	2021-07-31 11:40:42.835298841 +1000
+@@ -412,9 +412,8 @@
+ 
+ 	movl	%esp, %eax
+ 	call	do_fast_syscall_32
+-	/* XEN PV guests always use IRET path */
+-	ALTERNATIVE "testl %eax, %eax; jz .Lsyscall_32_done", \
+-		    "jmp .Lsyscall_32_done", X86_FEATURE_XENPV
++	testl %eax, %eax
++	jz .Lsyscall_32_done
+ 
+ /* Opportunistic SYSEXIT */
+ 	TRACE_IRQS_ON			/* User mode traces as IRQs on. */
+--- arch/x86/entry/vdso/vdso32/system_call.S	2021-07-31 11:41:40.379731622 +1000
++++ arch/x86/entry/vdso/vdso32/system_call.S	2021-07-31 11:43:40.294633506 +1000
+@@ -55,8 +55,6 @@
+ 	/* If SYSENTER (Intel) or SYSCALL32 (AMD) is available, use it. */
+ 	ALTERNATIVE_2 "", SYSENTER_SEQUENCE, X86_FEATURE_SYSENTER32, \
+ 	                  SYSCALL_SEQUENCE,  X86_FEATURE_SYSCALL32
+-#else
+-	ALTERNATIVE "", SYSENTER_SEQUENCE, X86_FEATURE_SEP
+ #endif
+ 
+ 	/* Enter using int $0x80 */

steps/linux-4.9.10/patches/remove-kconfig.patch

@@ -0,0 +1,23 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-2.0-only
+
+kconfig uses gperf, which we don't have at this stage. We manually generate
+everything (in the actual script) that is actually required within kconfig,
+and forgo everything that is not really required for the build.
+
+--- Makefile	2021-07-30 21:25:43.577592065 +1000
++++ Makefile	2021-07-30 21:26:40.349015612 +1000
+@@ -547,10 +547,10 @@
+ export KBUILD_DEFCONFIG KBUILD_KCONFIG
+ 
+ config: scripts_basic outputmakefile FORCE
+-	$(Q)$(MAKE) $(build)=scripts/kconfig $@
++	$(Q)true
+
+ %config: scripts_basic outputmakefile FORCE
+-	$(Q)$(MAKE) $(build)=scripts/kconfig $@
++	true
+
+ else
+ # ===========================================================================

steps/linux-4.9.10/sources

@@ -0,0 +1,2 @@
+https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.9.10.tar.gz 97ff15f9550c6e85c25173b3cf5c7e89a2d39fb923112f2c8bc2729cf64bf6d8
+https://linux-libre.fsfla.org/pub/linux-libre/releases/old/gen6/4.9.10-gnu/deblob-4.9 af4214b851928a53ef470ed8729122b9db910a6c0769d5d46a5de0b3e96f74f3