Make LLVM symbol visibility FFI types more stable.
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692d7cfb0c
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3 changed files with 54 additions and 9 deletions
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@ -64,6 +64,15 @@ pub enum Linkage {
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CommonLinkage = 10,
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}
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// LLVMRustVisibility
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#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
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#[repr(C)]
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pub enum Visibility {
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Default = 0,
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Hidden = 1,
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Protected = 2,
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}
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/// LLVMDiagnosticSeverity
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#[derive(Copy, Clone, Debug)]
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#[repr(C)]
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@ -399,13 +408,6 @@ pub type OperandBundleDefRef = *mut OperandBundleDef_opaque;
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pub type DiagnosticHandler = unsafe extern "C" fn(DiagnosticInfoRef, *mut c_void);
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pub type InlineAsmDiagHandler = unsafe extern "C" fn(SMDiagnosticRef, *const c_void, c_uint);
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/// LLVMVisibility
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#[repr(C)]
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pub enum Visibility {
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Default,
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Hidden,
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Protected,
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}
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pub mod debuginfo {
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use super::MetadataRef;
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@ -655,7 +657,8 @@ extern "C" {
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pub fn LLVMRustSetLinkage(Global: ValueRef, RustLinkage: Linkage);
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pub fn LLVMGetSection(Global: ValueRef) -> *const c_char;
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pub fn LLVMSetSection(Global: ValueRef, Section: *const c_char);
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pub fn LLVMSetVisibility(Global: ValueRef, Viz: Visibility);
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pub fn LLVMRustGetVisibility(Global: ValueRef) -> Visibility;
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pub fn LLVMRustSetVisibility(Global: ValueRef, Viz: Visibility);
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pub fn LLVMGetAlignment(Global: ValueRef) -> c_uint;
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pub fn LLVMSetAlignment(Global: ValueRef, Bytes: c_uint);
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pub fn LLVMSetDLLStorageClass(V: ValueRef, C: DLLStorageClass);
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@ -78,7 +78,7 @@ fn declare_raw_fn(ccx: &CrateContext, name: &str, callconv: llvm::CallConv, ty:
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// don't want the symbols to get exported.
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if attr::contains_name(ccx.tcx().map.krate_attrs(), "compiler_builtins") {
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unsafe {
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llvm::LLVMSetVisibility(llfn, llvm::Visibility::Hidden);
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llvm::LLVMRustSetVisibility(llfn, llvm::Visibility::Hidden);
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}
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}
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@ -1408,3 +1408,45 @@ extern "C" void LLVMRustSetLinkage(LLVMValueRef V, LLVMRustLinkage RustLinkage)
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extern "C" LLVMContextRef LLVMRustGetValueContext(LLVMValueRef V) {
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return wrap(&unwrap(V)->getContext());
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}
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enum class LLVMRustVisibility {
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Default = 0,
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Hidden = 1,
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Protected = 2,
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};
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static LLVMRustVisibility to_rust(LLVMVisibility vis) {
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switch (vis) {
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case LLVMDefaultVisibility:
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return LLVMRustVisibility::Default;
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case LLVMHiddenVisibility:
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return LLVMRustVisibility::Hidden;
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case LLVMProtectedVisibility:
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return LLVMRustVisibility::Protected;
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default:
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llvm_unreachable("Invalid LLVMRustVisibility value!");
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}
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}
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static LLVMVisibility from_rust(LLVMRustVisibility vis) {
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switch (vis) {
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case LLVMRustVisibility::Default:
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return LLVMDefaultVisibility;
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case LLVMRustVisibility::Hidden:
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return LLVMHiddenVisibility;
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case LLVMRustVisibility::Protected:
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return LLVMProtectedVisibility;
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default:
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llvm_unreachable("Invalid LLVMRustVisibility value!");
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}
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}
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extern "C" LLVMRustVisibility LLVMRustGetVisibility(LLVMValueRef V) {
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return to_rust(LLVMGetVisibility(V));
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}
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extern "C" void LLVMRustSetVisibility(LLVMValueRef V, LLVMRustVisibility RustVisibility) {
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LLVMSetVisibility(V, from_rust(RustVisibility));
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}
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