Add sysb and sysc scaffolding.

Now that we have the Linux Kernel built, we move to a full-disk (rather
than initramfs) setup in sysc. However, we cannot assume the seed kernel
has support for mounting hard drives. So, first we need to kexec into
sysb, which is used as a jumping off point to create the hard drive for
sysc.

Additionally, since 2.6.16 does not have support for on-demand initramfs
(initramfs must be built into kernel), we will have to rebuild the linux
kernel within sysb without the initramfs.

All of this process is not performed for chroot mode. Instead, we skip
sysb and jump straight to sysc, copying over appropriate data.

The python scripts have been changed slightly. Each sys* inherits
SysGeneral, which contains various functions which are not specific to
any sys* and simplifies those files. rootfs now also handles sysb and
sysc.

bootstrap.cfg also gives an indication whether we are running in a
chroot to avoid attempting to kexec/mount within a chroot.

sysc/bison-3.4.2/bison-3.4.2.sh

@@ -0,0 +1,32 @@
+# SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+src_prepare() {
+    default
+
+    # Remove pre-generated flex/bison files
+    rm src/parse-gram.c src/parse-gram.h
+    rm src/scan-code.c
+    rm src/scan-gram.c
+    rm src/scan-skel.c
+
+    # Remove pregenerated info files
+    rm doc/bison.info
+
+    ../../import-gnulib.sh
+
+    AUTOPOINT=true autoreconf -fi
+}
+
+src_configure() {
+    ./configure --prefix="${PREFIX}" --disable-nls
+}
+
+src_compile() {
+    make MAKEINFO=true
+}
+
+src_install() {
+    make MAKEINFO=true DESTDIR="${DESTDIR}" install
+}

sysc/bison-3.4.2/checksums

@@ -0,0 +1 @@
+7659e6caa1c0f82722bc2d80b614a1fa500e531ce0f359c3a813b742738ad7c6  /image/bin/bison

sysc/bison-3.4.2/import-gnulib.sh

@@ -0,0 +1,91 @@
+#!/bin/sh
+
+# SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+../gnulib-672663a/gnulib-tool --import --local-dir=gl \
+    --lib=libbison \
+    --source-base=lib \
+    --m4-base=m4 \
+    --po-base=gnulib-po \
+    --doc-base=doc \
+    --tests-base=tests \
+    --aux-dir=build-aux \
+    --makefile-name=gnulib.mk \
+    --conditional-dependencies \
+    --no-libtool \
+    --macro-prefix=gl \
+    --po-domain=bison \
+    argmatch \
+    array-list \
+    assert \
+    assure \
+    bitsetv \
+    c-strcase \
+    calloc-posix \
+    close \
+    closeout \
+    config-h \
+    configmake \
+    dirname \
+    error \
+    extensions \
+    fdl \
+    fopen-safer \
+    fprintf-posix \
+    getopt-gnu \
+    gettext-h \
+    git-version-gen \
+    gitlog-to-changelog \
+    gpl-3.0 \
+    inttypes \
+    isnan \
+    javacomp-script \
+    javaexec-script \
+    ldexpl \
+    libtextstyle-optional \
+    mbswidth \
+    non-recursive-gnulib-prefix-hack \
+    obstack \
+    obstack-printf \
+    perror \
+    printf-posix \
+    progname \
+    quote \
+    quotearg \
+    readme-release \
+    realloc-posix \
+    relocatable-prog \
+    relocatable-script \
+    rename \
+    snprintf-posix \
+    spawn-pipe \
+    sprintf-posix \
+    stdbool \
+    stpcpy \
+    strdup-posix \
+    strerror \
+    strverscmp \
+    timevar \
+    unistd \
+    unistd-safer \
+    unlink \
+    unlocked-io \
+    unsetenv \
+    update-copyright \
+    verify \
+    vsnprintf-posix \
+    vsprintf-posix \
+    warnings \
+    xalloc \
+    xalloc-die \
+    xconcat-filename \
+    xhash \
+    xlist \
+    xmemdup0 \
+    xstrndup
+
+../gnulib-672663a/build-aux/prefix-gnulib-mk \
+    --lib-name=libbison \
+    lib/gnulib.mk

sysc/bison-3.4.2/patches/gnulib-makefile.patch

@@ -0,0 +1,17 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+Again, same as bison 2.3. I cannot figure out what gnulib/bison are doing
+that makes this required...
+
+--- Makefile.am	2021-04-15 12:18:34.371818904 +1000
++++ Makefile.am	2021-04-15 12:18:39.055851647 +1000
+@@ -63,6 +63,7 @@
+ check_SCRIPTS =
+ dist_TESTS =
+ noinst_LIBRARIES =
++lib_libbison_a_SOURCES =
+ 
+ include build-aux/local.mk
+ include data/local.mk

sysc/bison-3.4.2/patches/our-bison.patch

@@ -0,0 +1,18 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+Why do they insist on using themselves to bootstrap themselves? It doesn't
+exist...
+
+--- Makefile.am	2021-04-15 21:29:36.596205032 +1000
++++ Makefile.am	2021-04-15 21:30:00.367365897 +1000
+@@ -39,7 +39,7 @@
+ ## Running the bison from this tarball.  To generate our own parser,
+ ## but also to run the tests.  Of course, you ought to keep a sane
+ ## version of Bison nearby...
+-BISON = $(top_builddir)/tests/bison
++BISON = /image/bin/bison
+ BISON_IN = $(top_srcdir)/tests/bison.in
+ YACC = $(BISON) -o y.tab.c
+ AM_YFLAGS_WITH_LINES = --defines -Werror -Wall --report=all

sysc/bison-3.4.2/patches/po-files.patch

@@ -0,0 +1,25 @@
+SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+We don't have network access at this stage to "Fetch PO files".
+
+--- ../gnulib-672663a/gnulib-tool	2021-04-15 21:07:04.538055553 +1000
++++ ../gnulib-672663a/gnulib-tool	2021-04-15 21:07:16.424135984 +1000
+@@ -5564,16 +5564,6 @@
+       fi
+       func_append added_files "$pobase/POTFILES.in$nl"
+     fi
+-    # Fetch PO files.
+-    TP_URL="https://translationproject.org/latest/"
+-    if $doit; then
+-      echo "Fetching gnulib PO files from $TP_URL"
+-      (cd "$destdir"/$pobase \
+-       && wget --no-verbose --mirror --level=1 -nd -A.po -P . "${TP_URL}gnulib/"
+-      )
+-    else
+-      echo "Fetch gnulib PO files from $TP_URL"
+-    fi
+     # Create po/LINGUAS.
+     if $doit; then
+       func_dest_tmpfilename $pobase/LINGUAS