Support static linking with glibc and target-feature=+crt-static #77386

joshtriplett · 2020-10-01T04:29:36Z

With this change, it's possible to build on a linux-gnu target and pass
RUSTFLAGS='-C target-feature=+crt-static' or the equivalent via a
.cargo/config.toml file, and get a statically linked executable.

Update to libc 0.2.78, which adds support for static linking with glibc.

Add crt_static_respected to the linux_base target spec.

Update android_base and linux_musl_base accordingly. Avoid enabling
crt_static_respected on Android platforms, since that hasn't been
tested.

Closes #65447.

rust-highfive · 2020-10-01T04:29:39Z

r? @Mark-Simulacrum

(rust_highfive has picked a reviewer for you, use r? to override)

joshtriplett · 2020-10-01T04:32:52Z

I've built and tested this, and confirmed that the resulting toolchain can compile statically linked executables on the x86_64-unknown-linux-gnu target.

Thanks to @petrochenkov for the original suggestion on how to accomplish this, and @JohnTitor for reviewing and merging my changes to the libc crate.

library/unwind/src/lib.rs

petrochenkov · 2020-10-01T17:33:59Z

LGTM, modulo the gcc_eh clarifications.

joshtriplett · 2020-10-01T18:13:44Z

@petrochenkov Done.

petrochenkov · 2020-10-01T22:08:09Z

r? @petrochenkov @bors r+

bors · 2020-10-01T22:08:11Z

📌 Commit 2e8f705 has been approved by petrochenkov

…henkov Support static linking with glibc and target-feature=+crt-static With this change, it's possible to build on a linux-gnu target and pass RUSTFLAGS='-C target-feature=+crt-static' or the equivalent via a `.cargo/config.toml` file, and get a statically linked executable. Update to libc 0.2.78, which adds support for static linking with glibc. Add `crt_static_respected` to the `linux_base` target spec. Update `android_base` and `linux_musl_base` accordingly. Avoid enabling crt_static_respected on Android platforms, since that hasn't been tested. Closes rust-lang#65447.

Dylan-DPC-zz · 2020-10-03T15:22:23Z

@bors r-

failed in rollup

joshtriplett · 2020-10-03T19:01:10Z

Fixing...

joshtriplett · 2020-10-03T23:06:09Z

Fixed. I separated the update to libc 0.2.78 into a separate commit, and fixed process_unix to work with it.

@bors r=petrochenkov

bors · 2020-10-03T23:06:10Z

📌 Commit d3b5dca2f922ff6743263d390c6aee1e2631664f has been approved by petrochenkov

joshtriplett · 2020-10-04T21:45:56Z

Fixing in rust-lang/libc#1911 .

This also fixes issues with inconsistent `unsafe` on functions.

This unifies it with the handling of `target-feature=+crt-static` on other platforms, and allows for supporting static glibc in the future.

With this change, it's possible to build on a linux-gnu target and pass RUSTFLAGS='-C target-feature=+crt-static' or the equivalent via a `.cargo/config.toml` file, and get a statically linked executable. This requires libc 0.2.79, which adds support for static linking with glibc. Add `crt_static_respected` to the `linux_base` target spec. Update `android_base` and `linux_musl_base` accordingly. Avoid enabling crt_static_respected on Android platforms, since that hasn't been tested.

joshtriplett · 2020-10-05T05:13:02Z

@bors r=petrochenkov

bors · 2020-10-05T05:13:04Z

📌 Commit d9f29fd has been approved by petrochenkov

bors · 2020-10-06T21:11:11Z

⌛ Testing commit d9f29fd with merge 98edd1f...

bors · 2020-10-06T23:07:10Z

☀️ Test successful - checks-actions, checks-azure
Approved by: petrochenkov
Pushing 98edd1f to master...

rust-log-analyzer · 2020-10-07T11:42:20Z

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Clean up some of the pkgsrc Makefile, there's still lots in here that should just be deleted though. Switch SunOS to the illumos bootstrap by default. Version 1.48.0 (2020-11-19) ========================== Language -------- - [The `unsafe` keyword is now syntactically permitted on modules.][75857] This is still rejected *semantically*, but can now be parsed by procedural macros. Compiler -------- - [Stabilised the `-C link-self-contained=<yes|no>` compiler flag.][76158] This tells `rustc` whether to link its own C runtime and libraries or to rely on a external linker to find them. (Supported only on `windows-gnu`, `linux-musl`, and `wasi` platforms.) - [You can now use `-C target-feature=+crt-static` on `linux-gnu` targets.][77386] Note: If you're using cargo you must explicitly pass the `--target` flag. - [Added tier 2\* support for `aarch64-unknown-linux-musl`.][76420] \* Refer to Rust's [platform support page][forge-platform-support] for more information on Rust's tiered platform support. Libraries --------- - [`io::Write` is now implemented for `&ChildStdin` `&Sink`, `&Stdout`, and `&Stderr`.][76275] - [All arrays of any length now implement `TryFrom<Vec<T>>`.][76310] - [The `matches!` macro now supports having a trailing comma.][74880] - [`Vec<A>` now implements `PartialEq<[B]>` where `A: PartialEq<B>`.][74194] - [The `RefCell::{replace, replace_with, clone}` methods now all use `#[track_caller]`.][77055] Stabilized APIs --------------- - [`slice::as_ptr_range`] - [`slice::as_mut_ptr_range`] - [`VecDeque::make_contiguous`] - [`future::pending`] - [`future::ready`] The following previously stable methods are now `const fn`'s: - [`Option::is_some`] - [`Option::is_none`] - [`Option::as_ref`] - [`Result::is_ok`] - [`Result::is_err`] - [`Result::as_ref`] - [`Ordering::reverse`] - [`Ordering::then`] Cargo ----- Rustdoc ------- - [You can now link to items in `rustdoc` using the intra-doc link syntax.][74430] E.g. ``/// Uses [`std::future`]`` will automatically generate a link to `std::future`'s documentation. See ["Linking to items by name"][intradoc-links] for more information. - [You can now specify `#[doc(alias = "<alias>")]` on items to add search aliases when searching through `rustdoc`'s UI.][75740] Compatibility Notes ------------------- - [Promotion of references to `'static` lifetime inside `const fn` now follows the same rules as inside a `fn` body.][75502] In particular, `&foo()` will not be promoted to `'static` lifetime any more inside `const fn`s. - [Associated type bindings on trait objects are now verified to meet the bounds declared on the trait when checking that they implement the trait.][27675] - [When trait bounds on associated types or opaque types are ambiguous, the compiler no longer makes an arbitrary choice on which bound to use.][54121] - [Fixed recursive nonterminals not being expanded in macros during pretty-print/reparse check.][77153] This may cause errors if your macro wasn't correctly handling recursive nonterminal tokens. - [`&mut` references to non zero-sized types are no longer promoted.][75585] - [`rustc` will now warn if you use attributes like `#[link_name]` or `#[cold]` in places where they have no effect.][73461] - [Updated `_mm256_extract_epi8` and `_mm256_extract_epi16` signatures in `arch::{x86, x86_64}` to return `i32` to match the vendor signatures.][73166] - [`mem::uninitialized` will now panic if any inner types inside a struct or enum disallow zero-initialization.][71274] - [`#[target_feature]` will now error if used in a place where it has no effect.][78143] - [Foreign exceptions are now caught by `catch_unwind` and will cause an abort.][70212] Note: This behaviour is not guaranteed and is still considered undefined behaviour, see the [`catch_unwind`] documentation for further information. Internal Only ------------- These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of rustc and related tools. - [Building `rustc` from source now uses `ninja` by default over `make`.][74922] You can continue building with `make` by setting `ninja=false` in your `config.toml`. - [cg_llvm: `fewer_names` in `uncached_llvm_type`][76030] - [Made `ensure_sufficient_stack()` non-generic][76680] [78143]: rust-lang/rust#78143 [76680]: rust-lang/rust#76680 [76030]: rust-lang/rust#76030 [70212]: rust-lang/rust#70212 [27675]: rust-lang/rust#27675 [54121]: rust-lang/rust#54121 [71274]: rust-lang/rust#71274 [77386]: rust-lang/rust#77386 [77153]: rust-lang/rust#77153 [77055]: rust-lang/rust#77055 [76275]: rust-lang/rust#76275 [76310]: rust-lang/rust#76310 [76420]: rust-lang/rust#76420 [76158]: rust-lang/rust#76158 [75857]: rust-lang/rust#75857 [75585]: rust-lang/rust#75585 [75740]: rust-lang/rust#75740 [75502]: rust-lang/rust#75502 [74880]: rust-lang/rust#74880 [74922]: rust-lang/rust#74922 [74430]: rust-lang/rust#74430 [74194]: rust-lang/rust#74194 [73461]: rust-lang/rust#73461 [73166]: rust-lang/rust#73166 [intradoc-links]: https://doc.rust-lang.org/rustdoc/linking-to-items-by-name.html [`catch_unwind`]: https://doc.rust-lang.org/std/panic/fn.catch_unwind.html [`Option::is_some`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.is_some [`Option::is_none`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.is_none [`Option::as_ref`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.as_ref [`Result::is_ok`]: https://doc.rust-lang.org/std/result/enum.Result.html#method.is_ok [`Result::is_err`]: https://doc.rust-lang.org/std/result/enum.Result.html#method.is_err [`Result::as_ref`]: https://doc.rust-lang.org/std/result/enum.Result.html#method.as_ref [`Ordering::reverse`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.reverse [`Ordering::then`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.then [`slice::as_ptr_range`]: https://doc.rust-lang.org/std/primitive.slice.html#method.as_ptr_range [`slice::as_mut_ptr_range`]: https://doc.rust-lang.org/std/primitive.slice.html#method.as_mut_ptr_range [`VecDeque::make_contiguous`]: https://doc.rust-lang.org/std/collections/struct.VecDeque.html#method.make_contiguous [`future::pending`]: https://doc.rust-lang.org/std/future/fn.pending.html [`future::ready`]: https://doc.rust-lang.org/std/future/fn.ready.html

Boscop · 2020-12-29T01:08:46Z

It doesn't work for me, I get this error:

RUSTFLAGS="-C target-feature=+crt-static" cargo build --release
error: cannot produce proc-macro for argh_derive v0.1.4 as the target x86_64-unknown-linux-gnu does not support these crate types

Any idea how to make it work? :)

rustc 1.50.0-nightly (1c389ffef 2020-11-24)

mati865 · 2020-12-29T01:27:28Z

@Boscop it's the issue reported in #78210

Pkgsrc changes: * Compensate for files being moved around upstream. * Introduce optional, on-by-default semi-static building of cargo, using the internal curl and openssl sources. This reduces the dynamic dependencies of cargo and therefore the rust package itself. Ref. options.mk. * The 1.47.0 bootstrap kits have been re-built with the above option turned on, so no longer depends on curl or openssl from pkgsrc and/or from earlier OS or pkgsrc versions. This should hopefully fix installation of rust with non-default PREFIX, ref. PR#54453. Upstream changes: Version 1.48.0 (2020-11-19) ========================== Language -------- - [The `unsafe` keyword is now syntactically permitted on modules.][75857] This is still rejected *semantically*, but can now be parsed by procedural macros. Compiler -------- - [Stabilised the `-C link-self-contained=<yes|no>` compiler flag.][76158] This tells `rustc` whether to link its own C runtime and libraries or to rely on a external linker to find them. (Supported only on `windows-gnu`, `linux-musl`, and `wasi` platforms.) - [You can now use `-C target-feature=+crt-static` on `linux-gnu` targets.] [77386] Note: If you're using cargo you must explicitly pass the `--target` flag. - [Added tier 2\* support for `aarch64-unknown-linux-musl`.][76420] \* Refer to Rust's [platform support page][forge-platform-support] for more information on Rust's tiered platform support. Libraries --------- - [`io::Write` is now implemented for `&ChildStdin` `&Sink`, `&Stdout`, and `&Stderr`.][76275] - [All arrays of any length now implement `TryFrom<Vec<T>>`.][76310] - [The `matches!` macro now supports having a trailing comma.][74880] - [`Vec<A>` now implements `PartialEq<[B]>` where `A: PartialEq<B>`.][74194] - [The `RefCell::{replace, replace_with, clone}` methods now all use `#[track_caller]`.][77055] Stabilized APIs --------------- - [`slice::as_ptr_range`] - [`slice::as_mut_ptr_range`] - [`VecDeque::make_contiguous`] - [`future::pending`] - [`future::ready`] The following previously stable methods are now `const fn`'s: - [`Option::is_some`] - [`Option::is_none`] - [`Option::as_ref`] - [`Result::is_ok`] - [`Result::is_err`] - [`Result::as_ref`] - [`Ordering::reverse`] - [`Ordering::then`] Cargo ----- Rustdoc ------- - [You can now link to items in `rustdoc` using the intra-doc link syntax.][74430] E.g. ``/// Uses [`std::future`]`` will automatically generate a link to `std::future`'s documentation. See ["Linking to items by name"][intradoc-links] for more information. - [You can now specify `#[doc(alias = "<alias>")]` on items to add search aliases when searching through `rustdoc`'s UI.][75740] Compatibility Notes ------------------- - [Promotion of references to `'static` lifetime inside `const fn` now follows the same rules as inside a `fn` body.][75502] In particular, `&foo()` will not be promoted to `'static` lifetime any more inside `const fn`s. - [Associated type bindings on trait objects are now verified to meet the bounds declared on the trait when checking that they implement the trait.][27675] - [When trait bounds on associated types or opaque types are ambiguous, the compiler no longer makes an arbitrary choice on which bound to use.][54121] - [Fixed recursive nonterminals not being expanded in macros during pretty-print/reparse check.][77153] This may cause errors if your macro wasn't correctly handling recursive nonterminal tokens. - [`&mut` references to non zero-sized types are no longer promoted.][75585] - [`rustc` will now warn if you use attributes like `#[link_name]` or `#[cold]` in places where they have no effect.][73461] - [Updated `_mm256_extract_epi8` and `_mm256_extract_epi16` signatures in `arch::{x86, x86_64}` to return `i32` to match the vendor signatures.][73166] - [`mem::uninitialized` will now panic if any inner types inside a struct or enum disallow zero-initialization.][71274] - [`#[target_feature]` will now error if used in a place where it has no effect.][78143] - [Foreign exceptions are now caught by `catch_unwind` and will cause an abort.][70212] Note: This behaviour is not guaranteed and is still considered undefined behaviour, see the [`catch_unwind`] documentation for further information. Internal Only ------------- These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of rustc and related tools. - [Building `rustc` from source now uses `ninja` by default over `make`.][74922] You can continue building with `make` by setting `ninja=false` in your `config.toml`. - [cg_llvm: `fewer_names` in `uncached_llvm_type`][76030] - [Made `ensure_sufficient_stack()` non-generic][76680] [78143]: rust-lang/rust#78143 [76680]: rust-lang/rust#76680 [76030]: rust-lang/rust#76030 [70212]: rust-lang/rust#70212 [27675]: rust-lang/rust#27675 [54121]: rust-lang/rust#54121 [71274]: rust-lang/rust#71274 [77386]: rust-lang/rust#77386 [77153]: rust-lang/rust#77153 [77055]: rust-lang/rust#77055 [76275]: rust-lang/rust#76275 [76310]: rust-lang/rust#76310 [76420]: rust-lang/rust#76420 [76158]: rust-lang/rust#76158 [75857]: rust-lang/rust#75857 [75585]: rust-lang/rust#75585 [75740]: rust-lang/rust#75740 [75502]: rust-lang/rust#75502 [74880]: rust-lang/rust#74880 [74922]: rust-lang/rust#74922 [74430]: rust-lang/rust#74430 [74194]: rust-lang/rust#74194 [73461]: rust-lang/rust#73461 [73166]: rust-lang/rust#73166 [intradoc-links]: https://doc.rust-lang.org/rustdoc/linking-to-items-by-name.html [`catch_unwind`]: https://doc.rust-lang.org/std/panic/fn.catch_unwind.html [`Option::is_some`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.is_some [`Option::is_none`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.is_none [`Option::as_ref`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.as_ref [`Result::is_ok`]: https://doc.rust-lang.org/std/result/enum.Result.html#method.is_ok [`Result::is_err`]: https://doc.rust-lang.org/std/result/enum.Result.html#method.is_err [`Result::as_ref`]: https://doc.rust-lang.org/std/result/enum.Result.html#method.as_ref [`Ordering::reverse`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.reverse [`Ordering::then`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.then [`slice::as_ptr_range`]: https://doc.rust-lang.org/std/primitive.slice.html#method.as_ptr_range [`slice::as_mut_ptr_range`]: https://doc.rust-lang.org/std/primitive.slice.html#method.as_mut_ptr_range [`VecDeque::make_contiguous`]: https://doc.rust-lang.org/std/collections/struct.VecDeque.html#method.make_contiguous [`future::pending`]: https://doc.rust-lang.org/std/future/fn.pending.html [`future::ready`]: https://doc.rust-lang.org/std/future/fn.ready.html

rust-highfive assigned Mark-Simulacrum Oct 1, 2020

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Oct 1, 2020

joshtriplett added relnotes Marks issues that should be documented in the release notes of the next release. O-linux Operating system: Linux labels Oct 1, 2020

jyn514 added the A-linkage Area: linking into static, shared libraries and binaries label Oct 1, 2020

petrochenkov self-assigned this Oct 1, 2020

mati865 reviewed Oct 1, 2020

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Dylan-DPC-zz mentioned this pull request Oct 3, 2020

Rollup of 9 pull requests #77483

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bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Oct 3, 2020

joshtriplett force-pushed the static-glibc branch from 2e8f705 to d3b5dca Compare October 3, 2020 23:05

joshtriplett added 4 commits October 4, 2020 22:12

Update libc to 0.2.79

16ebf75

This also fixes issues with inconsistent `unsafe` on functions.

unwind: Move linux-gnu library linking to lib.rs and libc

9d952cb

This unifies it with the handling of `target-feature=+crt-static` on other platforms, and allows for supporting static glibc in the future.

Add comment explaining why libunwind doesn't need to link libgcc_eh

d9f29fd

joshtriplett force-pushed the static-glibc branch from d3b5dca to d9f29fd Compare October 5, 2020 05:12

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Oct 5, 2020

bors added the merged-by-bors This PR was explicitly merged by bors. label Oct 6, 2020

bors merged commit 98edd1f into rust-lang:master Oct 6, 2020

rustbot added this to the 1.49.0 milestone Oct 6, 2020

joshtriplett deleted the static-glibc branch October 6, 2020 23:17

mati865 mentioned this pull request Oct 22, 2020

"cannot produce proc-macro for crate as the target x86_64-unknown-linux-gnu does not support these crate types" with +crt-static #78210

Closed

fidencio mentioned this pull request Oct 29, 2020

agent: Experiment with the possibility to have the agent being statically linked to glibc kata-containers/kata-containers#1055

Closed

ehuss mentioned this pull request Nov 23, 2020

Update notes about static linking and MUSL rust-lang/edition-guide#224

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Jakob-Naucke mentioned this pull request Jan 13, 2021

Some functions result in dynamically linked binaries with +crt-static on non-x86 linux gnu rust-lang/libc#2033

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12101111 mentioned this pull request Apr 9, 2021

Refactor the linkage handling of libunwind #84040

Open

Skepfyr mentioned this pull request Jun 14, 2021

Compile error: static lifetime not satisfied but it is #86172

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rrbutani mentioned this pull request Sep 16, 2021

Adding support for cross compilation, CUDA, and sanitizers bazel-contrib/toolchains_llvm#90

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petrochenkov mentioned this pull request Jun 18, 2022

build fully statically linked executable for Android not supported rust-lang/cargo#10765

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nh2 mentioned this pull request Jun 6, 2025

Provide middle-ground overlay between pkgsMusl and pkgsStatic NixOS/nixpkgs#61575

Open

Support static linking with glibc and target-feature=+crt-static #77386

Support static linking with glibc and target-feature=+crt-static #77386

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