Mold: A Modern Linker

Comments

• PriorProject@lemmy.world ⁨1⁩ ⁨year⁩ ago

  I read the design notes and found them pretty interesting even though I haven’t really been pining for a faster linker: github.com/rui314/mold/blob/main/docs/design.md

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• rmam@programming.dev ⁨1⁩ ⁨year⁩ ago

  The performance gains are impressive in relative terms, but I don’t think I would ever switch the default linker if the potential gains are like shaving off 5 seconds when linking a 3GB bundle of binaries.

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  • ugo@feddit.it ⁨1⁩ ⁨year⁩ ago

    At work we use lld as opposed ld. With ld, the project I work on links in 60-something seconds, with lld it links in less than 6.

    Mold is faster than lld. It is absolutely worth it

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• verstra@programming.dev ⁨1⁩ ⁨year⁩ ago

  Cool. Any idea how would i use this with rustc

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  • AnarchoYeasty@beehaw.org ⁨1⁩ ⁨year⁩ ago

    From their repo (github.com/rui314/mold#how-to-use)

    Create .cargo/config.toml in your project directory with the following:

    [target.x86_64-unknown-linux-gnu] linker = “clang” rustflags = [“-C”, “link-arg=-fuse-ld=/path/to/mold”] where /path/to/mold is an absolute path to the mold executable. In the example above, we use clang as a linker driver since it always accepts the -fuse-ld option. If your GCC is recent enough to recognize the option, you may be able to remove the linker = “clang” line.

    [target.x86_64-unknown-linux-gnu] rustflags = [“-C”, “link-arg=-fuse-ld=/path/to/mold”] If you want to use mold for all projects, add the above snippet to ~/.cargo/config.toml

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• fubo@lemmy.world ⁨1⁩ ⁨year⁩ ago

  Parallelize all the things! 🧹

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