Skip to content

[obj2yaml] Add support for ELF .debug_info and .debug_abbrev #91193

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

[obj2yaml] Add support for ELF .debug_info and .debug_abbrev #91193

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 2 additions & 1 deletion llvm/test/MC/AsmParser/directive_file-3.s
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,8 @@ f1:

// CHECK-DEBUG: Sections:
// CHECK-DEBUG: - Name: .text
// CHECK-DEBUG: - Name: .debug_info
// CHECK-DEBUG: - Name: .rel.debug_info
// CHECK-DEBUG: Info: .debug_info
// CHECK-DEBUG: Symbols:
// CHECK-DEBUG: DWARF:
// CHECK-DEBUG: debug_info:
121 changes: 121 additions & 0 deletions llvm/test/tools/obj2yaml/ELF/DWARF/debug-info-abbrev.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,121 @@
# RUN: yaml2obj %s | obj2yaml | FileCheck %s

# CHECK: debug_abbrev:
# CHECK: - ID: 0
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Should these all be CHECK-NEXT?

# CHECK: Table:
# CHECK: - Code: 0x1
# CHECK: Tag: DW_TAG_compile_unit
# CHECK: Children: DW_CHILDREN_no
# CHECK: Attributes:
# CHECK: - Attribute: DW_AT_low_pc
# CHECK: Form: DW_FORM_addr
# CHECK: - ID: 1
# CHECK: Table:
# CHECK: - Code: 0x1
# CHECK: Tag: DW_TAG_compile_unit
# CHECK: Children: DW_CHILDREN_no
# CHECK: Attributes:
# CHECK: - Attribute: DW_AT_low_pc
# CHECK: Form: DW_FORM_data4
# CHECK: - ID: 2
# CHECK: Table:
# CHECK: - Code: 0x1
# CHECK: Tag: DW_TAG_compile_unit
# CHECK: Children: DW_CHILDREN_no
# CHECK: Attributes:
# CHECK: - Attribute: DW_AT_low_pc
# CHECK: Form: DW_FORM_udata
#
# CHECK: debug_info:
# CHECK: - Length: 0xC
# CHECK: Version: 4
# CHECK: AbbrevTableID: 1
# CHECK: AbbrOffset: 0x8
# CHECK: AddrSize: 8
# CHECK: Entries:
# CHECK: - AbbrCode: 0x1
# CHECK: Values:
# CHECK: - Value: 0x1234
# CHECK: - Length: 0xC
# CHECK: Version: 4
# CHECK: AbbrevTableID: 1
# CHECK: AbbrOffset: 0x8
# CHECK: AddrSize: 8
# CHECK: Entries:
# CHECK: - AbbrCode: 0x1
# CHECK: Values:
# CHECK: - Value: 0x4321
# CHECK: - Length: 0x10
# CHECK: Version: 4
# CHECK: AbbrevTableID: 0
# CHECK: AbbrOffset: 0x0
# CHECK: AddrSize: 8
# CHECK: Entries:
# CHECK: - AbbrCode: 0x1
# CHECK: Values:
# CHECK: - Value: 0x5678
# CHECK: - Length: 0xB
# CHECK: Version: 4
# CHECK: AbbrevTableID: 2
# CHECK: AbbrOffset: 0x10
# CHECK: AddrSize: 8
# CHECK: Entries:
# CHECK: - AbbrCode: 0x1
# CHECK: Values:
# CHECK: - Value: 0x8765

--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
DWARF:
debug_abbrev:
- Table:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
Attributes:
- Attribute: DW_AT_low_pc
Form: DW_FORM_addr
- ID: 2
Table:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
Attributes:
- Attribute: DW_AT_low_pc
Form: DW_FORM_data4
- ID: 1
Table:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
Attributes:
- Attribute: DW_AT_low_pc
Form: DW_FORM_udata
debug_info:
- Version: 4
AbbrevTableID: 2
Entries:
- AbbrCode: 1
Values:
- Value: 0x1234
- Version: 4
AbbrevTableID: 2
Entries:
- AbbrCode: 1
Values:
- Value: 0x4321
- Version: 4
AbbrevTableID: 0
Entries:
- AbbrCode: 1
Values:
- Value: 0x5678
- Version: 4
AbbrevTableID: 1
Entries:
- AbbrCode: 1
Values:
- Value: 0x8765
4 changes: 4 additions & 0 deletions llvm/tools/obj2yaml/elf2yaml.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -536,6 +536,10 @@ std::optional<DWARFYAML::Data> ELFDumper<ELFT>::dumpDWARFSections(
Err = dumpDebugRanges(*DWARFCtx, DWARF);
else if (RawSec->Name == ".debug_addr")
Err = dumpDebugAddr(*DWARFCtx, DWARF);
else if (RawSec->Name == ".debug_abbrev")
Err = dumpDebugAbbrev(*DWARFCtx, DWARF);
else if (RawSec->Name == ".debug_info")
dumpDebugInfo(*DWARFCtx, DWARF);
else
continue;

Expand Down
Loading