Add unimplemented `current_dll_path()` for WASI #141834

Timmmm · 2025-05-31T20:25:29Z

This is the only change needed to Rust to allow compiling rustfmt for WASI (rustfmt uses some internal rustc crates).

rustbot · 2025-05-31T20:25:33Z

rustbot has assigned @Nadrieril.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

rustbot · 2025-05-31T20:25:36Z

⚠️ Warning ⚠️

This PR is based on an upstream commit that is 60 days old.

It's recommended to update your branch according to the rustc-dev-guide.

compiler/rustc_session/src/filesearch.rs

Noratrieb · 2025-05-31T22:41:20Z

cool, thanks. can you squash the two commits? I'll approve them afterwards

This is the only change needed to Rust to allow compiling rustfmt for WASI (rustfmt uses some internal rustc crates).

rust-log-analyzer · 2025-06-01T09:01:04Z

The job x86_64-gnu-tools failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

tests/pass-dep/tokio/file-io.rs ... FAILED
tests/pass-dep/libc/mmap.rs ... ok

FAILED TEST: tests/pass-dep/tokio/file-io.rs
command: MIRI_ENV_VAR_TEST="0" MIRI_TEMP="/tmp/miri-uitest-tDcU6T" RUST_BACKTRACE="1" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/miri" "--error-format=json" "--sysroot=/checkout/obj/build/x86_64-unknown-linux-gnu/miri-sysroot" "-Dwarnings" "-Dunused" "-Ainternal_features" "-Zui-testing" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/tests/pass-dep/tokio" "tests/pass-dep/tokio/file-io.rs" "-Zmiri-disable-isolation" "--extern" "cfg_if=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libcfg_if-55a32e410325a882.rlib" "--extern" "cfg_if=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libcfg_if-55a32e410325a882.rmeta" "--extern" "getrandom_01=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libgetrandom-77190f9b44a3c009.rlib" "--extern" "getrandom_01=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libgetrandom-77190f9b44a3c009.rmeta" "--extern" "getrandom_02=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libgetrandom-56888fca95a09bf8.rlib" "--extern" "getrandom_02=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libgetrandom-56888fca95a09bf8.rmeta" "--extern" "getrandom_03=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libgetrandom-a8fc577bb44b6d80.rlib" "--extern" "getrandom_03=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libgetrandom-a8fc577bb44b6d80.rmeta" "--extern" "libc=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/liblibc-dd98cac8117d550a.rlib" "--extern" "libc=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/liblibc-dd98cac8117d550a.rmeta" "--extern" "num_cpus=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libnum_cpus-7ab8becb6da559b7.rlib" "--extern" "num_cpus=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libnum_cpus-7ab8becb6da559b7.rmeta" "--extern" "page_size=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libpage_size-c34469ad90c5eb76.rlib" "--extern" "page_size=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libpage_size-c34469ad90c5eb76.rmeta" "--extern" "tempfile=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libtempfile-d40c54a83e8abae9.rlib" "--extern" "tempfile=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libtempfile-d40c54a83e8abae9.rmeta" "--extern" "tokio=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libtokio-539f2d149eae570a.rlib" "--extern" "tokio=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps/libtokio-539f2d149eae570a.rmeta" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/debug/deps" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/tmp/miri_ui/0/miri/x86_64-unknown-linux-gnu/debug/deps" "--edition" "2021"

error: test got exit status: 101, but expected 0
 = note: the compiler panicked

error: no output was expected
---
   4: test_create_and_write::{closure#0}
             at tests/pass-dep/tokio/file-io.rs:24:5
   5: main::{closure#0}
             at tests/pass-dep/tokio/file-io.rs:14:29
   6: tokio::runtime::park::CachedParkThread::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/park.rs:284:60
   7: tokio::task::coop::with_budget::<std::task::Poll<()>, {closure@tokio::runtime::park::CachedParkThread::block_on<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/task/coop/mod.rs:167:5
   8: tokio::task::coop::budget::<std::task::Poll<()>, {closure@tokio::runtime::park::CachedParkThread::block_on<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/task/coop/mod.rs:133:5
   9: tokio::runtime::park::CachedParkThread::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/park.rs:284:31
  10: tokio::runtime::context::blocking::BlockingRegionGuard::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/context/blocking.rs:66:9
  11: tokio::runtime::scheduler::multi_thread::MultiThread::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/scheduler/multi_thread/mod.rs:87:13
  12: tokio::runtime::context::runtime::enter_runtime::<{closure@tokio::runtime::scheduler::multi_thread::MultiThread::block_on<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}}, ()>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/context/runtime.rs:65:16
  13: tokio::runtime::scheduler::multi_thread::MultiThread::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/scheduler/multi_thread/mod.rs:86:9
  14: tokio::runtime::Runtime::block_on_inner::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/runtime.rs:370:45
  15: tokio::runtime::Runtime::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/runtime.rs:342:13
  16: main
             at tests/pass-dep/tokio/file-io.rs:15:5
  17: <fn() as std::ops::FnOnce<()>>::call_once - shim(fn())
             at /checkout/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
---
   4: test_create_and_write::{closure#0}
             at tests/pass-dep/tokio/file-io.rs:24:5
   5: main::{closure#0}
             at tests/pass-dep/tokio/file-io.rs:14:29
   6: tokio::runtime::park::CachedParkThread::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/park.rs:284:60
   7: tokio::task::coop::with_budget::<std::task::Poll<()>, {closure@tokio::runtime::park::CachedParkThread::block_on<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/task/coop/mod.rs:167:5
   8: tokio::task::coop::budget::<std::task::Poll<()>, {closure@tokio::runtime::park::CachedParkThread::block_on<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/task/coop/mod.rs:133:5
   9: tokio::runtime::park::CachedParkThread::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/park.rs:284:31
  10: tokio::runtime::context::blocking::BlockingRegionGuard::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/context/blocking.rs:66:9
  11: tokio::runtime::scheduler::multi_thread::MultiThread::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/scheduler/multi_thread/mod.rs:87:13
  12: tokio::runtime::context::runtime::enter_runtime::<{closure@tokio::runtime::scheduler::multi_thread::MultiThread::block_on<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>::{closure#0}}, ()>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/context/runtime.rs:65:16
  13: tokio::runtime::scheduler::multi_thread::MultiThread::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/scheduler/multi_thread/mod.rs:86:9
  14: tokio::runtime::Runtime::block_on_inner::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/runtime.rs:370:45
  15: tokio::runtime::Runtime::block_on::<{async block@tests/pass-dep/tokio/file-io.rs:12:1: 12:15}>
             at /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.2/src/runtime/runtime.rs:342:13
  16: main
             at tests/pass-dep/tokio/file-io.rs:15:5
  17: <fn() as std::ops::FnOnce<()>>::call_once - shim(fn())
             at /checkout/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
---

Location:
   /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/ui_test-0.29.2/src/lib.rs:369

Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
Run with RUST_BACKTRACE=full to include source snippets.
error: test failed, to rerun pass `--test ui`

Caused by:
  process didn't exit successfully: `/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-linux-gnu/release/deps/ui-f58affc77002becb` (exit status: 1)
Command has failed. Rerun with -v to see more details.
Build completed unsuccessfully in 0:05:03
  local time: Sun Jun  1 09:00:53 UTC 2025
  network time: Sun, 01 Jun 2025 09:00:53 GMT
##[error]Process completed with exit code 1.
Post job cleanup.

Noratrieb · 2025-06-01T09:08:19Z

cc @rust-lang/miri looks like there's a spurious Miri tokio test failure

Noratrieb · 2025-06-01T09:09:27Z

@bors r+ rollup

bors · 2025-06-01T09:09:30Z

📌 Commit bdd680f has been approved by Noratrieb

It is now in the queue for this repository.

RalfJung · 2025-06-01T09:18:45Z

cc @rust-lang/miri looks like there's a spurious Miri tokio test failure

Thanks for bringing this to our attention! I filed an issue: rust-lang/miri#4367.

Nadrieril · 2025-06-01T12:18:56Z

r? @Noratrieb

rustbot · 2025-06-01T12:19:00Z

Noratrieb is not on the review rotation at the moment.
They may take a while to respond.

Add unimplemented `current_dll_path()` for WASI This is the only change needed to Rust to allow compiling rustfmt for WASI (rustfmt uses some internal rustc crates).

Rollup of 9 pull requests Successful merges: - #140370 (Improve diagnostics for usage of qualified paths within tuple struct exprs/pats) - #141224 (terminology: allocated object → allocation) - #141622 (implement `va_arg` for `powerpc`) - #141666 (source_span_for_markdown_range: fix utf8 violation) - #141789 (Exclude `CARGO_HOME` from `generate-copyright` in-tree determination) - #141823 (Drive-by refactor: use `OnceCell` for the reverse region SCC graph) - #141834 (Add unimplemented `current_dll_path()` for WASI) - #141846 (Fix TLS model on bootstrap for cygwin) - #141852 (resolve if-let-chain FIXME on bootstrap) r? `@ghost` `@rustbot` modify labels: rollup

Rollup merge of #141834 - Timmmm:user/timh/wasi, r=Noratrieb Add unimplemented `current_dll_path()` for WASI This is the only change needed to Rust to allow compiling rustfmt for WASI (rustfmt uses some internal rustc crates).

Timmmm · 2025-06-02T06:23:07Z

Thanks guys, that was reviewed & merged waaaay faster than I expected! 🎉

Rollup of 9 pull requests Successful merges: - rust-lang/rust#140370 (Improve diagnostics for usage of qualified paths within tuple struct exprs/pats) - rust-lang/rust#141224 (terminology: allocated object → allocation) - rust-lang/rust#141622 (implement `va_arg` for `powerpc`) - rust-lang/rust#141666 (source_span_for_markdown_range: fix utf8 violation) - rust-lang/rust#141789 (Exclude `CARGO_HOME` from `generate-copyright` in-tree determination) - rust-lang/rust#141823 (Drive-by refactor: use `OnceCell` for the reverse region SCC graph) - rust-lang/rust#141834 (Add unimplemented `current_dll_path()` for WASI) - rust-lang/rust#141846 (Fix TLS model on bootstrap for cygwin) - rust-lang/rust#141852 (resolve if-let-chain FIXME on bootstrap) r? `@ghost` `@rustbot` modify labels: rollup

…llaumeGomez Rollup of 9 pull requests Successful merges: - rust-lang#140370 (Improve diagnostics for usage of qualified paths within tuple struct exprs/pats) - rust-lang#141224 (terminology: allocated object → allocation) - rust-lang#141622 (implement `va_arg` for `powerpc`) - rust-lang#141666 (source_span_for_markdown_range: fix utf8 violation) - rust-lang#141789 (Exclude `CARGO_HOME` from `generate-copyright` in-tree determination) - rust-lang#141823 (Drive-by refactor: use `OnceCell` for the reverse region SCC graph) - rust-lang#141834 (Add unimplemented `current_dll_path()` for WASI) - rust-lang#141846 (Fix TLS model on bootstrap for cygwin) - rust-lang#141852 (resolve if-let-chain FIXME on bootstrap) r? `@ghost` `@rustbot` modify labels: rollup

rustbot assigned Nadrieril May 31, 2025

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels May 31, 2025

Noratrieb reviewed May 31, 2025

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compiler/rustc_session/src/filesearch.rs Outdated Show resolved Hide resolved

Add unimplemented current_dll_path() for WASI

bdd680f

This is the only change needed to Rust to allow compiling rustfmt for WASI (rustfmt uses some internal rustc crates).

Timmmm force-pushed the user/timh/wasi branch from 347360a to bdd680f Compare June 1, 2025 08:20

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-review Status: Awaiting review from the assignee but also interested parties. labels Jun 1, 2025

RalfJung mentioned this pull request Jun 1, 2025

tokio/file-io test is non-deterministic rust-lang/miri#4367

Closed

rustbot assigned Noratrieb and unassigned Nadrieril Jun 1, 2025

This was referenced Jun 1, 2025

Rollup of 9 pull requests #141868

Closed

Rollup of 9 pull requests #141869

Merged

bors merged commit fc32992 into rust-lang:master Jun 1, 2025
9 of 17 checks passed

rustbot added this to the 1.89.0 milestone Jun 1, 2025

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Add unimplemented `current_dll_path()` for WASI #141834

Add unimplemented `current_dll_path()` for WASI #141834

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Add unimplemented current_dll_path() for WASI #141834

Add unimplemented current_dll_path() for WASI #141834

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Add unimplemented `current_dll_path()` for WASI #141834

Add unimplemented `current_dll_path()` for WASI #141834