Hacker News: rui314

New comment by rui314 in "I Improved My Rust Compile Times"

rui314 — Wed, 20 Mar 2024 08:44:21 +0000

mold supports LTO out of the box.

New comment by rui314 in "I Improved My Rust Compile Times"

rui314 — Wed, 20 Mar 2024 08:34:00 +0000

Thanks, I really wish you become a billionaire :)

New comment by rui314 in "I Improved My Rust Compile Times"

rui314 — Wed, 20 Mar 2024 08:31:38 +0000

I don't know the details, but once it is proven that achieving lld/mold/sold-level performance is technically feasible, it shouldn't be extremely hard to achieve similar success for macOS.

New comment by rui314 in "I Improved My Rust Compile Times"

rui314 — Wed, 20 Mar 2024 06:53:19 +0000

> But it is no longer updated, is it?

Essentially, yes, but that’s because Apple’s new linker is so much faster than it was. You can use it instead.

New comment by rui314 in "I Improved My Rust Compile Times"

rui314 — Wed, 20 Mar 2024 06:15:10 +0000

The sold linker is no longer commercial software; it's been relicensed under the MIT license.

Mold linker may not switch to a source-available license

rui314 — Mon, 14 Nov 2022 14:40:31 +0000

Article URL: https://bluewhalesystems.blogspot.com/2022/11/mold-linker-may-not-switch-to-source.html

Comments URL: https://news.ycombinator.com/item?id=33594556

Points: 9

# Comments: 0

New comment by rui314 in "Chibicc – A Small C Compiler"

rui314 — Sun, 13 Nov 2022 12:45:06 +0000

CRT object files which contain process startup routines are not in a fixed directory. Unfortunately compilers have to be hard-coded to contain an appropriate directory name.

New comment by rui314 in "Chibicc – A Small C Compiler"

rui314 — Sun, 13 Nov 2022 12:42:32 +0000

It caused a flame war, so #1 factor is not negligible.

New comment by rui314 in "Chibicc – A Small C Compiler"

rui314 — Sun, 13 Nov 2022 12:38:30 +0000

I could buy bikes too, but as you wrote that's not enough to make a living. This is my full time project. I could earn a mid 6 figure salary if I work for a big tech, and I think I'm creating a more valuable program than I did when I was working for a big tech, and in return I make money that counts in "fancy bicycle" unit... I think it's not wrong to say it didn't work quite well.

New comment by rui314 in "Chibicc – A Small C Compiler"

rui314 — Sun, 13 Nov 2022 11:58:52 +0000

It didn't work. If it is available as open-source, they don't _need_ a different license. Anyway, it's off-topic.

New comment by rui314 in "Chibicc – A Small C Compiler"

rui314 — Sun, 13 Nov 2022 11:49:00 +0000

Author here. I'm amused that I opened HN thinking that https://docs.google.com/document/d/1kiW9qmNlJ9oQZM6r5o4_N54s... (which I posted today) might come to the front page and found this post instead.

So the chibicc book is not available yet. I'm busy working on the other project (the mold linker) and don't have time to work on it. That being said, I believe the repo is still very valuable for those who want to learn how easy it is to implement a simple C compiler. chibicc's each commit was carefully written so that you can read one commit at a time. I'd recommend starting from the initial commit and observe how each feature (`if`, `for`, local variables, global variables, etc.) is implemented by following each commit.

New comment by rui314 in "Mold/macOS is 11 times faster than the Apple's default linker to link Chrome"

rui314 — Sun, 19 Jun 2022 12:22:45 +0000

I don’t know much about the European job market, but you can see lots of examples of US job positions and their salaries at websites such as https://www.levels.fyi.

New comment by rui314 in "Mold/macOS is 11 times faster than the Apple's default linker to link Chrome"

rui314 — Sun, 19 Jun 2022 11:24:15 +0000

I'm not sure if io_uring can improve mold's performance, as it has to access random locations while copying file contents to apply relocations. Currently, we mmap all input files and an output file and use memcpy to copy file contents.

New comment by rui314 in "Mold/macOS is 11 times faster than the Apple's default linker to link Chrome"

rui314 — Sun, 19 Jun 2022 10:21:51 +0000

I'm just not a native English speaker.

New comment by rui314 in "Mold/macOS is 11 times faster than the Apple's default linker to link Chrome"

rui314 — Sun, 19 Jun 2022 10:19:52 +0000

That's not for you then, but some people have to rebuild Chrome-scale programs dozens of times a day, and mold is created for such people.

New comment by rui314 in "Mold/macOS is 11 times faster than the Apple's default linker to link Chrome"

rui314 — Sun, 19 Jun 2022 10:14:57 +0000

It can create Mac executables, but mold/macOS is still in pre-alpha and no one should expect it to work for their programs. Once it becomes out of beta, I'll release it as mold 2.0, so please wait for it.

New comment by rui314 in "Mold/macOS is 11 times faster than the Apple's default linker to link Chrome"

rui314 — Sun, 19 Jun 2022 10:10:43 +0000

That's an even crazier goal which is probably 100x harder than writing a 10x faster linker. But I believe it's technically doable. At least, the world needs more crazy people who believe it is technically doable and take it as a challenge. If I get $$$ by selling the mold project to a big tech, I might be able to create a team with that money to tackle that crazy goal...

New comment by rui314 in "Mold/macOS is 11 times faster than the Apple's default linker to link Chrome"

rui314 — Sun, 19 Jun 2022 10:05:15 +0000

I want to write a book about linkers so that the knowledge I earned during the development of the lld and mold linkers wouldn't lost, but I don't have enough time to do that!

New comment by rui314 in "Mold/macOS is 11 times faster than the Apple's default linker to link Chrome"

rui314 — Sun, 19 Jun 2022 08:14:21 +0000

None of gold, lld or mold can replace GNU ld entirely because they don't cover all features that GNU ld has.

New comment by rui314 in "Mold/macOS is 11 times faster than the Apple's default linker to link Chrome"

rui314 — Sun, 19 Jun 2022 07:32:23 +0000

I didn't take it as an offense, so don't say sorry! I just wanted to say that if a senior dev wants to earn $1M in a few years, they can just find a job and do whatever assigned to them there. They didn't have to take a risk of starting a completely new ambitious open-source project to earn that much.