科技回声

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jart超过 2 年前

If you want a Blinkenlights visualization of what happens from BIOS boot to main() then watch the second video under this heading: <a href="https://justine.lol/sectorlisp2/#emulation" rel="nofollow">https://justine.lol/sectorlisp2/#emulation</a>

olalonde超过 2 年前

Related, Rust's main(): <a href="https://github.com/rust-lang/rust/blob/1.62.0/library/std/src/rt.rs#L138" rel="nofollow">https://github.com/rust-lang/rust/blob/1.62.0/library/std/sr...</a>

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loic-sharma超过 2 年前

Related, how to print "Hello world" without libc: <a href="https://www.youtube.com/watch?v=b9OJYMFpHRU&ab_channel=RubberDuckEng" rel="nofollow">https://www.youtube.com/watch?v=b9OJYMFpHRU&ab_channel=Rubbe...</a>

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wrycoder超过 2 年前

previous: <a href="https://news.ycombinator.com/item?id=16995811" rel="nofollow">https://news.ycombinator.com/item?id=16995811</a>

madog超过 2 年前

Also see the "From Zero to main()" series:<p><a href="https://interrupt.memfault.com/blog/zero-to-main-1" rel="nofollow">https://interrupt.memfault.com/blog/zero-to-main-1</a>

saagarjha超过 2 年前

> For example, OS X only has dynamically linked applications<p>Statically linked code is permissible on Intel.

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asveikau超过 2 年前

It says _start (crt0.o) comes from libc. But note, if you run nm on a binary you can see _start is part of the binary, not libc.so.

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anthk超过 2 年前

"nm" it's your friend here.

chmaynard超过 2 年前

A minor quibble: the Mac operating system is no longer called OS X. The name changed to macOS in 2016, to align with the branding of Apple's other operating systems.

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9 条评论

jart超过 2 年前

olalonde超过 2 年前

Related, Rust's main(): <a href="https://github.com/rust-lang/rust/blob/1.62.0/library/std/src/rt.rs#L138" rel="nofollow">https://github.com/rust-lang/rust/blob/1.62.0/library/std/sr...</a>

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loic-sharma超过 2 年前

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wrycoder超过 2 年前

previous: <a href="https://news.ycombinator.com/item?id=16995811" rel="nofollow">https://news.ycombinator.com/item?id=16995811</a>

madog超过 2 年前

Also see the "From Zero to main()" series:<p><a href="https://interrupt.memfault.com/blog/zero-to-main-1" rel="nofollow">https://interrupt.memfault.com/blog/zero-to-main-1</a>

saagarjha超过 2 年前

> For example, OS X only has dynamically linked applications<p>Statically linked code is permissible on Intel.

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asveikau超过 2 年前

It says _start (crt0.o) comes from libc. But note, if you run nm on a binary you can see _start is part of the binary, not libc.so.

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anthk超过 2 年前

"nm" it's your friend here.

chmaynard超过 2 年前

A minor quibble: the Mac operating system is no longer called OS X. The name changed to macOS in 2016, to align with the branding of Apple's other operating systems.

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A general overview of what happens before main() (2019)

9 条评论

A general overview of what happens before main() (2019)

9 条评论