tokio_macros cause RUSTFLAGS=-Zsanitizer=address test to fail

[FallingSnow]

I'm trying to run a sanitizer test on my crate but I'm running into some undefined symbol errors. I'm not sure if I'm doing something wrong or this is a deeper issue.

cargo +nightly --version
cargo 1.69.0-nightly (9d5b32f50 2023-02-22)

$ RUSTFLAGS=-Zsanitizer=address cargo +nightly test
...
   Compiling tracing-test-macro v0.2.4
   Compiling intel-onevpl-sys v0.1.0 (/home/ayrton/onevpl-rs/intel-onevpl-sys)
error: /home/ayrton/onevpl-rs/target/debug/deps/libtokio_macros-c5ca0b39a8222a1e.so: undefined symbol: __asan_option_detect_stack_use_after_return
   --> /home/ayrton/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.25.0/src/lib.rs:589:13
    |
589 |     pub use tokio_macros::select_priv_declare_output_enum;
    |             ^^^^^^^^^^^^

error: /home/ayrton/onevpl-rs/target/debug/deps/libtokio_macros-c5ca0b39a8222a1e.so: undefined symbol: __asan_option_detect_stack_use_after_return
   --> /home/ayrton/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.25.0/src/lib.rs:595:13
    |
595 |     pub use tokio_macros::select_priv_clean_pattern;
    |             ^^^^^^^^^^^^

error: /home/ayrton/onevpl-rs/target/debug/deps/libtokio_macros-c5ca0b39a8222a1e.so: undefined symbol: __asan_option_detect_stack_use_after_return
   --> /home/ayrton/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.25.0/src/lib.rs:612:21
    |
612 |             pub use tokio_macros::main_rt as main;
    |                     ^^^^^^^^^^^^

error: /home/ayrton/onevpl-rs/target/debug/deps/libtokio_macros-c5ca0b39a8222a1e.so: undefined symbol: __asan_option_detect_stack_use_after_return
   --> /home/ayrton/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.25.0/src/lib.rs:615:21
    |
615 |             pub use tokio_macros::test_rt as test;
    |                     ^^^^^^^^^^^^

   Compiling tracing v0.1.37
error: /home/ayrton/onevpl-rs/target/debug/deps/libtracing_attributes-87e974072eda543a.so: undefined symbol: __asan_option_detect_stack_use_after_return
   --> /home/ayrton/.cargo/registry/src/github.com-1ecc6299db9ec823/tracing-0.1.37/src/lib.rs:959:9
    |
959 | pub use tracing_attributes::instrument;
    |         ^^^^^^^^^^^^^^^^^^

error: could not compile `tracing` due to previous error
warning: build failed, waiting for other jobs to finish...
error: could not compile `tokio` due to 4 previous errors

[Darksonn]

We run Tokio's tests with asan using the following configuration:

tokio/.github/workflows/ci.yml

Lines 213 to 231 in ee1c940

	asan:
	name: asan
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Install llvm
	# Required to resolve symbols in sanitizer output
	run: sudo apt-get install -y llvm
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ env.rust_nightly }}
	- uses: Swatinem/rust-cache@v2
	- name: asan
	run: cargo test --workspace --all-features --target x86_64-unknown-linux-gnu --tests -- --test-threads 1
	env:
	RUSTFLAGS: -Z sanitizer=address
	# Ignore `trybuild` errors as they are irrelevant and flaky on nightly
	TRYBUILD: overwrite

Perhaps you're missing the llvm package that it installs on line 220?

[taiki-e]

You have to pass --target flag.

See also documentation of -Z sanitizer:

Build scripts and procedural macros

Use of sanitizers together with build scripts and procedural macros is technically possible, but in almost all cases it would be best avoided. This is especially true for procedural macros which would require an instrumented version of rustc.

In more practical terms when using cargo always remember to pass --target flag, so that rustflags will not be applied to build scripts and procedural macros.

[FallingSnow]

That was it. Thank you. The following works:

RUSTFLAGS=-Zsanitizer=address cargo +nightly test --target x86_64-unknown-linux-gnu