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Require type_map::stub callers to supply file information

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This change attaches file information (`DIFile` reference and line
number) to struct debug info nodes.

Before:

```
; foo.ll
...
!5 = !DIFile(filename: "<unknown>", directory: "")
...
!16 = !DICompositeType(tag: DW_TAG_structure_type, name: "MyType", scope: !2, file: !5, size: 32, align: 32, elements: !17, templateParams: !19, identifier: "4cb373851db92e732c4cb5651b886dd0")
...
```

After:

```
; foo.ll
...
!3 = !DIFile(filename: "foo.rs", directory: "/home/matt/src/rust98678", checksumkind: CSK_SHA1, checksum: "bcb9f08512c8f3b8181ef4726012bc6807bc9be4")
...
!16 = !DICompositeType(tag: DW_TAG_structure_type, name: "MyType", scope: !2, file: !3, line: 3, size: 32, align: 32, elements: !17, templateParams: !19, identifier: "9e5968c7af39c148acb253912b7f409f")
...
```

Fixes #98678
This commit is contained in:
Matt Weber
2022-11-10 12:12:02 -05:00
parent c07aa1e171
commit 2f00b6affd
5 changed files with 51 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
View File

@@ -204,6 +204,8 @@ fn build_pointer_or_reference_di_node<'ll, 'tcx>(
Stub::Struct,
unique_type_id,
&ptr_type_debuginfo_name,
unknown_file_metadata(cx),
UNKNOWN_LINE_NUMBER,
cx.size_and_align_of(ptr_type),
NO_SCOPE_METADATA,
DIFlags::FlagZero,
@@ -371,6 +373,8 @@ fn build_dyn_type_di_node<'ll, 'tcx>(
Stub::Struct,
unique_type_id,
&type_name,
unknown_file_metadata(cx),
UNKNOWN_LINE_NUMBER,
cx.size_and_align_of(dyn_type),
NO_SCOPE_METADATA,
DIFlags::FlagZero,
@@ -841,6 +845,8 @@ fn build_foreign_type_di_node<'ll, 'tcx>(
Stub::Struct,
unique_type_id,
&compute_debuginfo_type_name(cx.tcx, t, false),
unknown_file_metadata(cx),
UNKNOWN_LINE_NUMBER,
cx.size_and_align_of(t),
Some(get_namespace_for_item(cx, def_id)),
DIFlags::FlagZero,
@@ -1044,6 +1050,15 @@ fn build_struct_type_di_node<'ll, 'tcx>(
let struct_type_and_layout = cx.layout_of(struct_type);
let variant_def = adt_def.non_enum_variant();
let tcx = cx.tcx;
let struct_span = tcx.def_span(adt_def.did());
let (file_metadata, line_number) = if !struct_span.is_dummy() {
let loc = cx.lookup_debug_loc(struct_span.lo());
(file_metadata(cx, &loc.file), loc.line)
} else {
(unknown_file_metadata(cx), UNKNOWN_LINE_NUMBER)
};
type_map::build_type_with_children(
cx,
type_map::stub(
@@ -1051,6 +1066,8 @@ fn build_struct_type_di_node<'ll, 'tcx>(
Stub::Struct,
unique_type_id,
&compute_debuginfo_type_name(cx.tcx, struct_type, false),
file_metadata,
line_number,
size_and_align_of(struct_type_and_layout),
Some(containing_scope),
visibility_di_flags(cx, adt_def.did(), adt_def.did()),
@@ -1154,6 +1171,8 @@ fn build_tuple_type_di_node<'ll, 'tcx>(
Stub::Struct,
unique_type_id,
&type_name,
unknown_file_metadata(cx),
UNKNOWN_LINE_NUMBER,
size_and_align_of(tuple_type_and_layout),
NO_SCOPE_METADATA,
DIFlags::FlagZero,
@@ -1200,6 +1219,8 @@ fn build_closure_env_di_node<'ll, 'tcx>(
Stub::Struct,
unique_type_id,
&type_name,
unknown_file_metadata(cx),
UNKNOWN_LINE_NUMBER,
cx.size_and_align_of(closure_env_type),
Some(containing_scope),
DIFlags::FlagZero,
@@ -1231,6 +1252,8 @@ fn build_union_type_di_node<'ll, 'tcx>(
Stub::Union,
unique_type_id,
&type_name,
unknown_file_metadata(cx),
UNKNOWN_LINE_NUMBER,
size_and_align_of(union_ty_and_layout),
Some(containing_scope),
DIFlags::FlagZero,
@@ -1423,6 +1446,8 @@ fn build_vtable_type_di_node<'ll, 'tcx>(
Stub::VTableTy { vtable_holder },
unique_type_id,
&vtable_type_name,
unknown_file_metadata(cx),
UNKNOWN_LINE_NUMBER,
(size, pointer_align),
NO_SCOPE_METADATA,
DIFlags::FlagArtificial,