rust/compiler/rustc_llvm/llvm-wrapper
Hugues de Valon ce9818f2b7 Add a new ABI to support cmse_nonsecure_call
This commit adds a new ABI to be selected via `extern
"C-cmse-nonsecure-call"` on function pointers in order for the compiler to
apply the corresponding cmse_nonsecure_call callsite attribute.
For Armv8-M targets supporting TrustZone-M, this will perform a
non-secure function call by saving, clearing and calling a non-secure
function pointer using the BLXNS instruction.

See the page on the unstable book for details.

Signed-off-by: Hugues de Valon <hugues.devalon@arm.com>
2021-02-02 13:04:31 +00:00
..
.editorconfig
ArchiveWrapper.cpp
CoverageMappingWrapper.cpp Improved version check 2020-11-25 09:45:33 -08:00
Linker.cpp
LLVMWrapper.h
PassWrapper.cpp llvm: update ffi bindings for split dwarf 2020-12-16 10:31:42 +00:00
README
RustWrapper.cpp Add a new ABI to support cmse_nonsecure_call 2021-02-02 13:04:31 +00:00

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.