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rust/compiler/rustc_llvm/llvm-wrapper
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quininer e5b76892cc Add emulated TLS support 
Currently LLVM uses emutls by default
for some targets (such as android, openbsd),
but rust does not use it, because `has_thread_local` is false.

This commit has some changes to allow users to enable emutls:

1. add `-Zhas-thread-local` flag to specify
    that std uses `#[thread_local]` instead of pthread key.
2. when using emutls, decorate symbol names
    to find thread local symbol correctly.
3. change `-Zforce-emulated-tls` to `-Ztls-model=emulated`
    to explicitly specify whether to generate emutls.
2023-12-07 00:21:32 +08:00
..
.editorconfig Move rustllvm into rustc_llvm 2020-09-09 23:05:43 +03:00
ArchiveWrapper.cpp ArchiveWrapper: handle LLVM API update 2023-08-22 12:26:35 -04:00
CoverageMappingWrapper.cpp coverage: Don't convert symbol names to CString for FFI 2023-08-04 10:48:05 +10:00
Linker.cpp Move rustllvm into rustc_llvm 2020-09-09 23:05:43 +03:00
LLVMWrapper.h Add -Zfunction-return={keep,thunk-extern} option 2023-11-30 20:21:31 +01:00
PassWrapper.cpp Add emulated TLS support 2023-12-07 00:21:32 +08:00
README Move rustllvm into rustc_llvm 2020-09-09 23:05:43 +03:00
RustWrapper.cpp Add -Zfunction-return={keep,thunk-extern} option 2023-11-30 20:21:31 +01:00
SymbolWrapper.cpp llvm-wrapper: update for LLVM API change 2023-07-14 12:10:29 +00:00

README 

This directory currently contains some LLVM support code. This will generally
be sent upstream to LLVM in time; for now it lives here.

NOTE: the LLVM C++ ABI is subject to between-version breakage and must *never*
be exposed to Rust. To allow for easy auditing of that, all Rust-exposed types
must be typedef-ed as "LLVMXyz", or "LLVMRustXyz" if they were defined here.

Functions that return a failure status and leave the error in
the LLVM last error should return an LLVMRustResult rather than an
int or anything to avoid confusion.

When translating enums, add a single `Other` variant as the first
one to allow for new variants to be added. It should abort when used
as an input.

All other types must not be typedef-ed as such.