fwsgonzo

15 ms·

211.
by fwsgonzo 3y ago
I've embedded llama.cpp for a while now. There may be a point where it's not embeddable anymore, but for now it works great. My experience with the others is don't bother. The build systems and dependency management is truly
212.
Libriscv: Version 1.0(fwsgonzo.medium.com)
3 points by fwsgonzo 3y ago|0 comments
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Libriscv: Version 1.0(fwsgonzo.medium.com)
2 points by fwsgonzo 3y ago|0 comments
214.
by fwsgonzo 3y ago
Cool. I watched it twice! I thought you meant the stack switching done by wasmtime, which is not "a handful of cycles," but I stand corrected: It's fiber/coro switching. Alfred, a friend of mine, gave a talk on using tho
215.
by fwsgonzo 3y ago
That's an impressive feat if true, but I wonder when you would need it outside of a seriously threaded architecture. That is, the server you are embedded in has one thread per client or backend. In a modern server architecture I suspec
216.
by fwsgonzo 3y ago
Not just that, but which device today doesn't have hardware virtualization where you are literally in a sandbox, running on the actual CPU with all the advanced instruction set extensions available to you? Some of these WASM run-times
217.
by fwsgonzo 3y ago
I feel the same way. I think RISC-V has changed my opinion on the hardware aspect of things, and now for the first time I want to try to create a simple CPU at home. There is even a simpler RV32E spec, for those (like me) with little hardwa
218.
by fwsgonzo 3y ago
Levers. Each company has MBAs that can pull a certain amount of levers each quarterly. Every now and then, the quarterly lever is the quality of customer support, until there's nothing left. In theory, companies make room for others wh
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by fwsgonzo 3y ago
The Swedish Transport Agency says they are only able to ship license plates using PostNord according to regulation, so I'm not sure how exactly Tesla thought they were going to win this lawsuit.
220.
by fwsgonzo 3y ago
I think if I had the opportunity to learn Rust, and some guidance so that I didn't have to do everything the hard way (essentially how I learned C and then C++), then I would! So far I have used Rust very little, but what I have seen I
221.
by fwsgonzo 3y ago
My point is that I am acknowledging that C and C++ needs more discipline. I'm not saying we eliminated this class of bugs!
222.
by fwsgonzo 3y ago
If you use MSVC maybe it's more of an issue, but on GCC and Clang we have __builtin_overflow_*. There are many variants: https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins... I use them all the time
223.
by fwsgonzo 3y ago
There is this one: https://github.com/janbar/openssl-cmake but I mostly use it to embed OpenSSL.
224.
by fwsgonzo 3y ago
I agree. I'm using it both in the game server, the client and for scripting! So far I haven't really had any serious problems that would be related to unsafety. You just have to be disciplined. Source: https://medium.co
225.
by fwsgonzo 3y ago
Considering that no matter what we do we will go to 2C, I'm not exactly understanding this article? The UN currently warns that we will go to 3C at the current rate: https://www.theguardian.com/environment/2023&#x2
226.
by fwsgonzo 3y ago
A very good writeup of how it works. Especially the perfection or nothing thing. I found that Trello helps because the stickers you create can be very simple, and I always need a reminder.
227.
by fwsgonzo 3y ago
I don't think you're forced to do it a certain way. The most mature RISC-V toolchain is the GNU toolchain, which is binutils + GCC + glibc/newlib/musl. Clang, GCC and all the libc's which are the foundation of most
228.
by fwsgonzo 3y ago
A shadow stack is a separate stack that is only maintained by making function calls and returning according to what the CPU actually did. In theory you can't trample the stack, so it's both a security feature and a way to avoid we
229.
Using C++ as a Scripting Language, part 9(fwsgonzo.medium.com)
4 points by fwsgonzo 3y ago|0 comments
230.
by fwsgonzo 3y ago
Is static linking supported now? It's the one blocker for me to use C# in weird places. I'm good at hacking the underlying environment to make it work, but dynamic loading is not on the table.
231.
by fwsgonzo 3y ago
This is wrong. WebAssembly doesn't care where you write inside the arena. See: https://gist.github.com/fwsGonzo/8d8d0d27847c2d5804bc2d8af2b... .. but it is safe to write anywhere in the arena!
232.
by fwsgonzo 3y ago
Yes, so can any type of userspace sandboxing with speculation safe emulators. Virtualization also prevents these issues. So, you can safely use C from your gameboy emulator, RISC-V emulator, or WebAssembly emulator. The quality of the emula
233.
by fwsgonzo 3y ago
Seeking: https://github.com/fwsGonzo/libriscv This is a C++ RISC-V emulator that focuses on isolating a single process, aka userspace emulation. I am currently working mostly on binary translation, and recently I have
234.
by fwsgonzo 3y ago
Reading through this thread, I think that if the conclusion is to disallow misaligned 16-bit instructions, then not much has to happen.You technically only need to relink the programs to fix that issue. The question is really about how far
235.
by fwsgonzo 3y ago
I had a look at the C sources of the original coreutils, and I have to say that I seriously doubt the Rust version will add performance. Safety? Maybe, but these are mature programs that have been studied a lot. A new coreutils suite with
236.
by fwsgonzo 3y ago
I didn't think about the potential benefits of fitting in icache. I managed to find this PDF that does admit that it has a modest 2-3% benefit whenever the code wouldn't normally fit in icache: https://forums.macrumors.
237.
by fwsgonzo 3y ago
One thing that comes to mind: Compressed instructions enable 2-byte alignment for all instructions, and actually allows for a 4-byte instruction to span two pages. EDIT: Looks like I'm not alone: https://news.ycombinator.com
238.
by fwsgonzo 3y ago
I feel the same way, especially about build systems. OpenSSL and v8 are among a large list of things that have horrid build systems. Only way to build them sanely is to use some randos CMake fork, then it Just Works. Literally a two-liner i
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by fwsgonzo 3y ago
Did you contact a lawyer? You'll need to consult with a lawyer about the legality of it.
240.
by fwsgonzo 3y ago
Is it possible to build this for Windows on Linux? That's one of the things that would make it stand out for me. I'm finding myself using Windows less and less, but I realize that most users are on Windows. I've had some succ

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