bjoernager/rust
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Create a safe wrapper around LLVMRustDIBuilderCreateSubroutineType

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This commit is contained in:
Oli Scherer 2025-03-17 16:34:24 +00:00
parent 6adc2c1fd6
commit e19e4e3a4b
2 changed files with 13 additions and 12 deletions
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18
compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
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@ -38,8 +38,8 @@ use crate::debuginfo::metadata::type_map::build_type_with_children;
use crate::debuginfo::utils::{WidePtrKind, wide_pointer_kind};
use crate::llvm;
use crate::llvm::debuginfo::{
DIDescriptor, DIFile, DIFlags, DILexicalBlock, DIScope, DIType, DebugEmissionKind,
DebugNameTableKind,
DICompositeType, DIDescriptor, DIFile, DIFlags, DILexicalBlock, DIScope, DIType,
DebugEmissionKind, DebugNameTableKind,
};
use crate::value::Value;
@ -312,12 +312,7 @@ fn build_subroutine_type_di_node<'ll, 'tcx>(
debug_context(cx).type_map.unique_id_to_di_node.borrow_mut().remove(&unique_type_id);
let fn_di_node = unsafe {
llvm::LLVMRustDIBuilderCreateSubroutineType(
DIB(cx),
create_DIArray(DIB(cx), &signature_di_nodes[..]),
)
};
let fn_di_node = create_subroutine_type(cx, create_DIArray(DIB(cx), &signature_di_nodes[..]));
// This is actually a function pointer, so wrap it in pointer DI.
let name = compute_debuginfo_type_name(cx.tcx, fn_ty, false);
@ -341,6 +336,13 @@ fn build_subroutine_type_di_node<'ll, 'tcx>(
DINodeCreationResult::new(di_node, false)
}
pub(super) fn create_subroutine_type<'ll>(
cx: &CodegenCx<'ll, '_>,
signature: &'ll DICompositeType,
) -> &'ll DICompositeType {
unsafe { llvm::LLVMRustDIBuilderCreateSubroutineType(DIB(cx), signature) }
}
/// Create debuginfo for `dyn SomeTrait` types. Currently these are empty structs
/// we with the correct type name (e.g. "dyn SomeTrait<Foo, Item=u32> + Sync").
fn build_dyn_type_di_node<'ll, 'tcx>(

7
compiler/rustc_codegen_llvm/src/debuginfo/mod.rs
View file

@ -6,6 +6,7 @@ use std::ptr;
use std::sync::Arc;
use libc::c_uint;
use metadata::create_subroutine_type;
use rustc_abi::Size;
use rustc_codegen_ssa::debuginfo::type_names;
use rustc_codegen_ssa::mir::debuginfo::VariableKind::*;
@ -341,10 +342,8 @@ impl<'ll, 'tcx> DebugInfoCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> {
let loc = self.lookup_debug_loc(span.lo());
let file_metadata = file_metadata(self, &loc.file);
let function_type_metadata = unsafe {
let fn_signature = get_function_signature(self, fn_abi);
llvm::LLVMRustDIBuilderCreateSubroutineType(DIB(self), fn_signature)
};
let function_type_metadata =
create_subroutine_type(self, get_function_signature(self, fn_abi));
let mut name = String::with_capacity(64);
type_names::push_item_name(tcx, def_id, false, &mut name);