cdylib builds with -Cprofile-generate RUSTFLAGS are broken under Unix with PyO3 0.23

[gi0baro]

Bug Description

During the process of releasing a new version of Granian I realised it seems not possible to create PGO builds in Linux and MacOS.
Maturin successfully builds the wheels with RUSTFLAGS=-Cprofile-generate=$(pwd)/profdata, but importing the library results in a segfault under MacOS and the following in Linux:

ImportError: /home/runner/work/granian/granian/.venv/lib/python3.9/site-packages/granian/_granian.cpython-39-x86_64-linux-gnu.so: undefined symbol: __gcov_indirect_call

Tested both on GHA (you can inspect the run here) and locally on MacOS.

Also tried to test different maturin versions (1.7.4->1.7.8) and reverting changes on other cargo dependencies from the last successful build with PyO3 0.22: nothing seems to work, reverting to PyO3 0.22 immediately fix the issue. Also, Windows seems to be unaffected by this.
Not sure this is 100% PyO3 fault, but given my limited knowledge on the inner processes it's also hard to identify other major responsibilities on something else. To maintainers: if you think this is Maturin related or it involves other components, feel free to close this and point me out to the right place.

Steps to Reproduce

1. Run RUSTFLAGS=-Cprofile-generate=$(pwd)/profdata maturin build --release -i {interpreter}
2. Install the generated wheel
3. Import the library in Python

Backtrace

No response

Your operating system and version

Ubuntu 22.04, MacOS 13, MacOS 14

Your Python version (python --version)

Python 3.9->3.13

Your Rust version (rustc --version)

1.82.0, 1.83.0

Your PyO3 version

0.23.3

How did you install python? Did you use a virtualenv?

pyenv, brew, uv

Additional Info

No response

[gi0baro]

Update: removing the following dependency from Cargo.toml

tikv-jemallocator = { version = "0.6.0", default-features = false, features = ["disable_initial_exec_tls"] }

seems to solve the issue. Still quite unclear to me why this happens on 0.23.x and not 0.22.x

[gi0baro]

Update: removing tikv-jemallocator dependency seems to solve the issue.

Actually on MacOS only. Linux still suffers from the same issue described in the OP

[gi0baro]

Same Linux issue with another project, you can inspect the GHA workflow run here