bootstrap-initrd

commit: 32070e1ed114b4ead056b5467f925c0df68f7e1f
parent 27a82d03736dae297ea97288453568cdb96ef117
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Sun, 28 Apr 2024 20:14:25 +0200

Add bzip2

Diffstat:
M
README.md
5
+++++
M
init.sh
16
++++++++++++++++
M
make-initrd.sh
4
++++

3 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/README.md b/README.md
@@ -49,6 +49,11 @@ Reference implementation and AFAIK the one used in BSDs, can be built with only 
 ### bmake
 NetBSD make(1) made portable, uses an autotools configure script but much simpler than the GNU Make one.
 
+### bzip2
+Builds with C Compiler + bmake.
+Meanwhile:
+- pbzip2: Requires C++ compiler
+
 ## Launching in QEMU
 ```
 $ qemu-system-x86_64 -enable-kvm -cpu host -m 1536 -kernel /boot/vmlinuz-6.6.21-gentoo -initrd /tmp/initramfs-tcc.cpio.xz -append 'init=/init console=ttyS0 panic=1' -nographic -no-reboot
diff --git a/init.sh b/init.sh
@@ -45,6 +45,20 @@ build_bmake() {
 		|| die "failed to install mk files"
 }
 
+build_bzip2() {
+	cd /bzip2-*/
+	bmake -f Makefile-libbz2_so CC=$CC || die
+	ln -s libbz2.so.1.0.8 libbz2.so
+	bmake -f Makefile bzip2 CC=$CC || die
+
+	ln libbz2.so.1.0.8 /lib/libbz2.so.1.0.8
+	ln -s libbz2.so.1.0.8 /lib/libbz2.so
+	ln -s libbz2.so.1.0.8 /lib/libbz2.so.1.0
+	ln bzip2 /bin/bzip2
+	ln -s bzip2 /bin/bunzip2
+	ln -s bzip2 /bin/bzcat
+}
+
 set -ex -o pipefail
 
 export CC=tcc
@@ -84,6 +98,8 @@ chmod +x /bin/hostname
 
 build_bmake
 
+build_bzip2
+
 cd /
 
 rescueshell
diff --git a/make-initrd.sh b/make-initrd.sh
@@ -12,6 +12,7 @@ tarballs="
 	byacc-20240109.tgz
 	nawk-20240422.tar.gz
 	loksh-7.3.tar.xz
+	bzip2-1.0.8.tar.gz
 "
 WORKDIR="$(pwd)"
 name_base="initramfs-tcc"
@@ -91,6 +92,9 @@ sed -i -e '1a#include <limits.h>' -e 's;_PW_NAME_LEN;LOGIN_NAME_MAX;' loksh-*/ma
 
 gen_loksh_tcc_h > loksh_tcc.h
 
+sed -i -e 's;bzip2-shared;bzip2;' bzip2-*/Makefile-libbz2_so || die "Failed patching /bzip2-*/Makefile-libbz2_so"
+sed -i -e 's;all: libbz2.a;all: libbz2.so;' -e 's;bzip2: libbz2.a;bzip2: libbz2.so;' bzip2-*/Makefile || die "Failed patching /bzip2-*/Makefile"
+
 deblob -n
 
 find . -print0 | cpio --null -o --format=newc | xz -9 --check=crc32 > "${out_base}.cpio.xz"