bjoernager/rust
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Add first cut of functionality for #58713: support for #[link(kind = "raw-dylib")].

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This does not yet support #[link_name] attributes on functions, the #[link_ordinal]
attribute, #[link(kind = "raw-dylib")] on extern blocks in bin crates, or
stdcall functions on 32-bit x86.
This commit is contained in:
Richard Cobbe 2021-03-08 12:42:54 -08:00
parent c79419af07
commit 6aa45b71b1
27 changed files with 481 additions and 20 deletions
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34
compiler/rustc_codegen_llvm/src/llvm/ffi.rs
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@ -29,6 +29,31 @@ pub enum LLVMRustResult {
Success,
Failure,
}
// Rust version of the C struct with the same name in rustc_llvm/llvm-wrapper/RustWrapper.cpp.
#[repr(C)]
pub struct LLVMRustCOFFShortExport {
pub name: *const c_char,
}
impl LLVMRustCOFFShortExport {
pub fn from_name(name: *const c_char) -> LLVMRustCOFFShortExport {
LLVMRustCOFFShortExport { name }
}
}
/// Translation of LLVM's MachineTypes enum, defined in llvm\include\llvm\BinaryFormat\COFF.h.
///
/// We include only architectures supported on Windows.
#[derive(Copy, Clone, PartialEq)]
#[repr(C)]
pub enum LLVMMachineType {
AMD64 = 0x8664,
I386 = 0x14c,
ARM64 = 0xaa64,
ARM = 0x01c0,
}
// Consts for the LLVM CallConv type, pre-cast to usize.
/// LLVM CallingConv::ID. Should we wrap this?
@ -2265,6 +2290,15 @@ extern "C" {
) -> &'a mut RustArchiveMember<'a>;
pub fn LLVMRustArchiveMemberFree(Member: &'a mut RustArchiveMember<'a>);
pub fn LLVMRustWriteImportLibrary(
ImportName: *const c_char,
Path: *const c_char,
Exports: *const LLVMRustCOFFShortExport,
NumExports: usize,
Machine: u16,
MinGW: bool,
) -> LLVMRustResult;
pub fn LLVMRustSetDataLayoutFromTargetMachine(M: &'a Module, TM: &'a TargetMachine);
pub fn LLVMRustBuildOperandBundleDef(