bootstrap is complex and error prone

[kallisti5]

Our current bootstrap process is extremely complex and error prone. We really need to reduce some of the complexity of the initial bootstrap. Port progress is at a standstill as you have to have an entire bootstrap completed before doing any port work on bootloader, kernel, etc.

Ideas:

• Create a new single repo with the most basic tools forked. We tune the build scripts to be easily executable within the initial bootstrap environment. We generate one haiku_bootstrap_env hpkg that provides a basic environment. (coreutils,awk,bison,curl,mawk,flex,m4,make,sed)
• Fork busybox to provide all of the core utils + sed,awk,wget,etc. I have a busybox binary generated on Haiku after some tweaking... their build system is really rough however and can be flaky when automated.
• Introduce a new @basic-raw target which doesn't require a bootstrap. Just include bootloader, filesystem drivers, kernel.

[kallisti5]

arm bootstrap after two days of work.

[kallisti5]

busybox example.

make haiku_defconfig make

/Builds/busybox-1.23.1> uname -a
Haiku kallbuild01 1 hrev48786 Feb  8 2015 19:48:00 x86_64 x86_64 Haiku
/Builds/busybox-1.23.1> ./busybox
BusyBox v1.23.1 (2015-02-27 14:46:56 CST) multi-call binary.
BusyBox is copyrighted by many authors between 1998-2012.
Licensed under GPLv2. See source distribution for detailed
copyright notices.

Usage: busybox [function [arguments]...]
   or: busybox --list
   or: function [arguments]...

	BusyBox is a multi-call binary that combines many common Unix
	utilities into a single executable.  Most people will create a
	link to busybox for each function they wish to use and BusyBox
	will act like whatever it was invoked as.

Currently defined functions:
	[, [[, awk, base64, basename, cat, chgrp, chmod, chown, chroot, cksum,
	cp, cut, date, dd, diff, dirname, echo, env, expand, expr, false, fold,
	grep, groups, head, id, install, ln, logname, md5sum, mkdir, mv, nohup,
	patch, printenv, printf, pwd, readlink, realpath, rm, rmdir, sed, seq,
	sha1sum, sha256sum, sha3sum, sha512sum, sleep, sort, split, stty, sum,
	sync, tac, tail, tee, test, touch, tr, true, tty, uname, uniq, unlink,
	usleep, uudecode, uuencode, wc, which, whoami, xargs, yes

/Builds/busybox-1.23.1> uname -a | ./busybox awk '{ print $1 }'
Haiku

[kallisti5]

busybox patches for Haiku