live-bootstrap
chibicc
Our great sponsors
live-bootstrap | chibicc | |
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28 | 21 | |
264 | 8,514 | |
- | - | |
9.4 | 0.0 | |
9 days ago | 6 months ago | |
Shell | C | |
GNU General Public License v3.0 only | MIT License |
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.
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).
chibicc
- Cwerg: C-like language that can be implemented in 10kLOC
- Apple hiring compiler developers for improving Swift / C++ interoperability
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GCC always assumes aligned pointer accesses
If a --k&r mode was to be reliable, wouldn't it need to get specified first? Otherwise people would start relying on some edge case.
If speed is not a requirement for the --k&r mode, you could just take the tis-interpreter and note that if it runs without UB, it is still much faster than an actual computer was when k&r were active.
Would it even be possible to specify a variant of C that contains no UB (e.g. would define exactly what happens on unaligned access), but can compile practical existing C89 programs? I wonder if it could be written such that it could actually specify the behaviour consistently across the language intersection supported by both of e.g. GCC 2.95 and Chibicc[0].
Or maybe there are so many bugs in GCC 2.95 that it would simply be infeasible? How much time would it take to specify?
[0]: https://github.com/rui314/chibicc
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EU to vote regulation that has a considerable potential to hurt OSS
I was on the Eclipse Foundation call a few days ago regarding this topic and they said there was a well-established 3-part test for this in the EU courts. But I don't think I managed to take a screenshot, sorry.
Here is a snippet from the EU Blue Guide linked the from the Eclipse blog post:
"Commercial activity is understood as providing goods in a business related context. Non-profit organisations may be considered as carrying out commercial activities if they operate in such a context. This can only be appreciated on a case by case basis taking into account the regularity of the supplies, the characteristics of the product, the intentions of the supplier, etc. In principle, occasional supplies by charities or hobbyists should not be considered as taking place in a business related context."
I would consider GCC or React to fit this definition, while a hobby project like https://github.com/rui314/chibicc not to fit it.
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Best practice to store context for a C compiler
chibicc
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SectorC: A C Compiler in 512 bytes
chibicc: https://github.com/rui314/chibicc (A reasonably digestible C implementation)
- List of (open source) C compilers
- Chibicc – A Small C Compiler
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Are Hoistings Possible for C++?
When you say a fork of LLVM, am I correct in assuming that you specifically mean a fork of Clang? I don't see how the compiler backend would affect support for language extensions, regardless of whether it's an exception to that such as Tcc, Cproc, the MIR C jitter, lacc, 8cc, 9cc, and chibicc. Most of those are not for production, excluding Cproc and Tcc (at least according to Suckless or Oasis).
What are some alternatives?
nix-ld - Run unpatched dynamic binaries on NixOS
8cc - A Small C Compiler
guix - Read-only mirror of GNU Guix — pull requests are ignored, see https://guix.gnu.org/en/manual/en/guix.html#Submitting-Patches instead
mold - Mold: A Modern Linker 🦠
mescc-tools-seed - A place for public review of the posix port of stage0
build-your-own-x - Master programming by recreating your favorite technologies from scratch.
brainfuck-x86-64 - A brainfuck interpreter written in x86-64 assembly
SmallerC - Simple C compiler
M2-Planet - The PLAtform NEutral Transpiler
Co-dfns - High-performance, Reliable, and Parallel APL
rizin - UNIX-like reverse engineering framework and command-line toolset.
quickjs - Public repository of the QuickJS Javascript Engine.