0asm
live-bootstrap
| 0asm | live-bootstrap | |
|---|---|---|
| 1 | 29 | |
| 30 | 271 | |
| - | - | |
| 10.0 | 9.4 | |
| over 4 years ago | 8 days ago | |
| Assembly | Shell | |
| GNU General Public License v3.0 only | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
0asm
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SectorC: A C Compiler in 512 bytes
wow, this is impressive.
I wrote a similar x86-16 assembler in < 512 B of x86-16 assembly, and this seems much more difficult <https://github.com/kvakil/0asm/>. I did find a lot of similar tricks were helpful: using gadgets and hashes. Once trick I don't see in sectorc which shaved quite a bit off of 0asm was self-modifying code, which 0asm uses to "change" to the second-pass of the assembler. (I wrote some other techniques here: <https://kvakil.me/posts/asmkoan.html>.)
bootOS (<https://github.com/nanochess/bootOS>) and other tools by the author are also amazing works of assembly golf.
live-bootstrap
- Bored? How about trying a Linux speedrun? (2020)
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SectorC: A C Compiler in 512 bytes
Not using this, but tangentially related is (full disclosure, i am a maintainer of this project) live-bootstrap, which uses about a KB of binary to do a full "Linux from scratch" style thing - read https://github.com/fosslinux/live-bootstrap/blob/master/part... for all 143 steps you have to go through to get there.
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Saving Knowledge Post-Collapse
Actually you can skip a file system entirely if you do something like stage0 or live-bootstrap https://github.com/fosslinux/live-bootstrap
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Every night
See https://github.com/fosslinux/live-bootstrap, and https://github.com/fosslinux/live-bootstrap/blob/master/parts.rst has all the steps we take.
- Goodbye to the C++ Implementation of Zig
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what is the smallest linux system capable of building itself?
live-bootstrap builds a variety of intermediate systems, starting from a <1KB binary seed (kernel excluded). Check parts.rst for a description, it's kinda wild just how many C and C subset compilers get compiled... but the end result is a system with musl and GCC 4.7, from which building the latest GCC is 2 steps away.
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Ken Thompson: Reflections on Trusting Trust (Turing Award Lecture)
There is also live-bootstrap which uses a similar bootstrap chain to Guix (stage0 -> Mes -> tcc -> gcc), but without needing Guile/guix-daemon binaries etc. The whole thing starts with just a 357-byte binary seed (source)!
- Collapsing Internet
- Zig is now self–hosted by default
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GHC blog: Migrating from Make to Hadrian (for packagers)
There's some cool stuff being done in this area. For example, live-bootstrap goes from a tiny, auditable binary seed to a full GNU userland using only source code (and a Linux kernel).
What are some alternatives?
oneKpaq - PPM compressor with a 128 bytes short decompressor
nix-ld - Run unpatched dynamic binaries on NixOS
bootstrap-seeds - The roots of trust for all architectures
guix - Read-only mirror of GNU Guix — pull requests are ignored, see https://guix.gnu.org/en/manual/en/guix.html#Submitting-Patches instead
bcc - bcc is a b compiler
mescc-tools-seed - A place for public review of the posix port of stage0
sectorc - A C Compiler that fits in the 512 byte boot sector of an x86 machine
brainfuck-x86-64 - A brainfuck interpreter written in x86-64 assembly
M2-Planet - The PLAtform NEutral Transpiler
rizin - UNIX-like reverse engineering framework and command-line toolset.
zig-bootstrap - take off every zig
libds - A collection of data structures for C