Improve No stdlib and related Documentation
#35663
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| // This function may be needed based on the compilation target. | ||
| #[lang = "eh_unwind_resume"] | ||
| #[no_mangle] |
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#[no_mangle] seems questionable, as this is not done in libpanic_unwind. The extern "C" might already indicate that those functions are not supposed to be mangled. I'm not quite sure on that though, so I kept it for now.
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[steve@becoming tmp]$ cat foo.rs
pub extern fn mangle() {}
#[no_mangle]
pub extern fn no_mangle() {}
[steve@becoming tmp]$ rustc foo.rs --crate-type=lib
[steve@becoming tmp]$ nm libfoo.rlib | grep mangle
nm: rust.metadata.bin: File format not recognized
0000000000000000 T no_mangle
0000000000000000 T _ZN3foo6mangle17h47460733e6635b5fE
nm: foo.0.bytecode.deflate: File format not recognized(extern does not imply no_mangle)
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I guess, it's questionable if you need it for a lang_item however, as there's no actual C code that needs the actual symbol name though. You can even choose your own apparently.
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Not so sure if we should be renaming them. AIUI |
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Well, the documentation also has |
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@bors r+ rollup fair |
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📌 Commit e586d21 has been approved by |
Improve `No stdlib` and related Documentation This renames all lang item function names to the ones used in `libstd` and `libpanic_unwind`. It also explains the `eh_unwind_resume` lang item in the `libcore` documentation, where it was missing. A third function is also needed on certain compilation targets, so this was also added to the `No stdlib` documentation.
Improve `No stdlib` and related Documentation This renames all lang item function names to the ones used in `libstd` and `libpanic_unwind`. It also explains the `eh_unwind_resume` lang item in the `libcore` documentation, where it was missing. A third function is also needed on certain compilation targets, so this was also added to the `No stdlib` documentation.
Improve `No stdlib` and related Documentation This renames all lang item function names to the ones used in `libstd` and `libpanic_unwind`. It also explains the `eh_unwind_resume` lang item in the `libcore` documentation, where it was missing. A third function is also needed on certain compilation targets, so this was also added to the `No stdlib` documentation.
This renames all lang item function names to the ones used in
libstdandlibpanic_unwind. It also explains theeh_unwind_resumelang item in thelibcoredocumentation, where it was missing. A third function is also needed on certain compilation targets, so this was also added to theNo stdlibdocumentation.