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d429c48d76
- We do not use latest 4.9.x because it relies on a new version of binutils, while older versions do not. (Note: we should be able to go a bit newer but I didn't bother testing >50 versions to figure this out). - We do not use newer kernel versions because they require one or more of (new perl, new binutils, new make, new gcc, new bison, new tar). - sysb and sysc are updated to use the SATA (libata) subsystem (aka sda) instead of IDE-emulating SATA subsystem (aka hda) which is now available to us. - While theoretically according to docs 4.9 should work OOTB with our version of binutils this is not the case, so we have to do a bit of (interesting) patching. But this does not break anything. - Thankfully serial support in 4.9 is not screwed over like it is in 2.6 so we can revert to that. - 4.9 has the linux-libre project at our disposal, instead of gNewSense. So we use this. Unfortunatley that takes forever because we have to use sed because our version of gawk is too old/buggy. :( I plan to introduce very shortly 1. parallelism 2. 'sysc snapshot' which will start from sysc to avoid this. I do not want to use linux-libre tarballs because they make modificiations directly from this script (aka not easily verifiable, use the source!) and this script allows for much greater flexibility. - We compile the initramfs ahead-of-build using the in-tree cpio generator instead of also building cpio to use less packages. We do NOT build the initramfs into the kernel like 2.6 (unsupported). - Oh and fix a kexec-tools checksum.
62 lines
1.8 KiB
Bash
Executable file
62 lines
1.8 KiB
Bash
Executable file
# SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
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#
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# SPDX-License-Identifier: GPL-3.0-or-later
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src_unpack() {
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default || true # Predictable link errors - not a problem
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cp ../src/deblob-4.9 ../src/deblob-check ${pkg}/
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# Clear up storage space
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rm -rf ../src
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}
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generate_autoconf_h() {
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# generate include/linux/autoconf.h -- we do not have gperf rn to do it the normal way
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mkdir -p include/generated
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# Transform each of the CONFIG_* options that are =y into header
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grep -E '=y$' .config | sed 's/=y$/ 1/' | sed 's/^/#define /' >> include/generated/autoconf.h
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# Transform each of the CONFIG_* options that are unset into headers
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grep -E ' is not set$' .config | sed 's/ is not set$//' | sed 's/#/#undef/' >> include/generated/autoconf.h
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# Transform each of the non-boolean options into headers
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grep -E '=.*$' .config | grep -v -E '=y$' | sed 's/=/ /' | sed 's/^/#define /' >> include/generated/autoconf.h
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}
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src_prepare() {
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default
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mv config .config
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mkdir -p include/config
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cp .config include/config/auto.conf
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generate_autoconf_h
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# Deblob the kernel
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chmod +x deblob-4.9 deblob-check
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# Don't use gawk, use sed
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AWK=dosentexist ./deblob-4.9
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# Remove shipped files
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find . -name "*_shipped*" -delete
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}
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src_compile() {
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# Generate the initramfs so we can remove /sysb
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make ARCH=i386 prepare
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make ARCH=i386 usr/
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mkdir -p "${PREFIX}/boot"
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mv usr/initramfs_data.cpio.gz "${PREFIX}/boot/initramfs-sysb"
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make clean
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rm -rf /sysb
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sed -i 's:/sysb::' .config
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cp .config include/config/auto.conf
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rm include/generated/autoconf.h
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generate_autoconf_h
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make ARCH=i386 prepare
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make ARCH=i386
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}
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src_install() {
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cp arch/i386/boot/bzImage "${PREFIX}/boot/linux-4.9.10"
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}
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