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bors f98598c6cd Auto merge of #108089 - Zoxc:windows-tls, r=bjorn3 
Support TLS access into dylibs on Windows

This allows access to `#[thread_local]`  in upstream dylibs on Windows by introducing a MIR shim to return the address of the thread local. Accesses that go into an upstream dylib will call the MIR shim to get the address of it.

`convert_tls_rvalues` is introduced in `rustc_codegen_ssa` which rewrites MIR TLS accesses to dummy calls which are replaced with calls to the MIR shims when the dummy calls are lowered to backend calls.

A new `dll_tls_export` target option enables this behavior with a `false` value which is set for Windows platforms.

This fixes https://github.com/rust-lang/rust/issues/84933.
2023-03-29 16:20:37 +00:00
..
src Auto merge of #108089 - Zoxc:windows-tls, r=bjorn3 2023-03-29 16:20:37 +00:00
Cargo.toml Update indexmap and rayon crates 2023-03-25 02:12:13 +01:00
messages.ftl Simplify message paths 2023-03-11 22:51:57 +01:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

For more information about how rustc works, see the rustc dev guide.